February 2008 Archives

Kick-Back Friday: #3

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Rififi.jpg
Speaking of 1956 black-and-white heist movies...this week, the Pathophilia blog recommends Rififi ("Trouble" en français). The magnetically reticent Jean Servais stars as a seasoned thief who attempts to pull off one last, great jewel robbery. Particularly delightful is the ensemble break-in, with its silent (literally), low-tech ingeniousness. According to the imdb, Al Pacino has signed up for a 2009 remake.

More on Roozrokh Case: Lubarsky Testimony

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In its continuing coverage of the criminal case against transplant surgeon Hootan Roozrokh, MD, the San Luis Obispo Tribune reports on the second day of testimony from Laura Lubarsky, MD, at a preliminary hearing. Lubarsky is the critical-care specialist who served as Ruben Navarro's attending physician at the Sierra Vista Medical Center on the night of February 3, 2006, when Navarro's organs were to be harvested during cardiac-death donation.

Lubarsky, who has received immunity from prosecution, reportedly described her role on the night in question in conflicting terms: although an "independent observer" of the organ-donation process, she admitted to also having "an ethical and legal obligation to protect [Navarro] from harm." The reported facts of the case suggest that Lubarsky acted more consistently (and regrettably) as a spectator in Navarro's end-of-life care, while the patient was given massive doses of morphine and lorazepam, which were ordered by Roozrokh.

Lubarsky admitted yesterday on the stand that Navarro, once his mechanical ventilation was removed, did not exhibit the signs of pain or distress that would warrant such large doses of analgesic or sedating medication. Lubarsky also implied either ignorance or confusion regarding her role as attending physician in the process of cardiac-death donation.

Information to date suggests that the final events of Ruben Navarro's life are a consequence of the unhappy meeting of extreme passivity and aggressiveness in Lubarsky and Roozrokh, respectively.

For what it's worth, a newly available, heavily redacted inspection form details observations made by FDA investigator Regina T. Brown and chemist Zi-Qiang Gu regarding Changzhou SPL Company Ltd, the Chinese facility that supplied some of the main ingredient in Baxter's now-recalled heparin products.

The general impression, after attempting to read through the "whiteout," is one of shoddy documentation and execution of heparin processing (particularly concerning the removal of impurities) and quality control at the Chinese plant.

One itemized deficiency relates to the "description of manual manipulations of the [Redacted] during processing steps." The description continues, "[T]hey do not include the actual, manually entered [Redacted] set temperatures and times and, operator observations such as level measurements, used in calculations, during the [Redacted] step are not recorded." Given the reference to "manually entered...set temperatures and times," this notation may well relate to a poorly documented autoclave depyrogenation step.

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A letter in the latest issue of the NEJM indicates that the number of neonates identified with cystic fibrosis (CF) through neonatal screening declined substantially during the 4-year period from 2003 to 2006 in Massachusetts and was associated with a significant decrease in the number of infants with the most common CF-related genotype, F508/F508.

The authors, from the New England Newborn Screening Program, observed an expected number of infants with CF from 1999 to 2002; however, in 2003, infants identified with the F508/F508 genotype declined significantly, and this decline was maintained during the next 4 years.

The authors conjecture that the gradual uptake of preconception and prenatal screening to identify CF carriers among the general population since 2001 has resulted in fewer births of children with recognized CF-related genotypes. But they advise that the reduced incidence of known CF genotypes will lower the predictive value of newborn screening for CF.

Photo: iStockPhoto

Printing its first non-AP blurb on the subject, the NYT today features the criminal proceedings against California transplant surgeon Hootan Roozrokh, MD—a story that has heretofore received considerable attention in the West Coast press and elsewhere. Prompting the NYT's attention now is evidently the fact that a preliminary hearing in the case begins today in the San Luis Obispo County Superior Court. Roozrokh is charged with three felony counts related to the 2006 death of potential organ donor Ruben Navarro at the Sierra Vista Regional Medical Center.

 

Some of the best coverage to date on this story (and available through the oh-so-terrific Google News archive feature) can be found in a-little-paper-that-could, the San Luis Obispo Tribune, with the bulk of its reporting on this story by Sarah Arnquist. Particularly informative are reports of unsealed court documents from the AP, by way of the Tribune. These documents, coupled with complementary news stories, enable the construction of the following rough timeline of the attempt to harvest Navarro's organs during his unfortunate last hours and the ensuing events.

 

  • 01/29/06: Navarro, a 25-year-old man debilitated by adrenoleukodystrophy, is found in respiratory arrest at the Casa de Vida adult-care facility and is taken to Sierra Vista (which, according to Google Maps, is right across the street), where he is revived but remains comatose and on life support.

 

  • 01/29/06-02/03/06: At some time during this period, Navarro's family agrees to remove the patient from mechanical ventilation and to donate his organs (however, this claim is challenged later by the patient's mother, Rosa Navarro, who says her consent was not informed). Navarro reportedly has minimal brain function but is not brain dead, and at least one of his Sierra Vista physicians allegedly writes in medical records that Navarro would not make a good candidate for a procedure known as cardiac-death donation—which requires organ harvesting within 30 minutes of death—because Navarro's "drive to breathe was still intact."

 

  • Friday, 02/03/06, evening: A dispatched team from the California Transplant Donor Network, which includes Roozrokh, another surgeon Arturo Martinez, and nurse coordinator Carla Albright, arrive at Sierra Vista. Roozrokh and Martinez examine Navarro in the ICU, a clear violation of organ-donation law, which prohibits contact between transplant surgeons and potential donors during life. This contact is also in violation of Sierra Vista policy.

 

  • 02/03/06, 11 pm and after: In preparation for a cardiac-death donation (reportedly the first ever performed at Sierra Vista), Navarro is transferred from the ICU to an operating room, where mechanical ventilation is to be disconnected and his organs harvested within a 30-minute window of time after death. The transplant physicians are evidently in the OR at this time, another clear violation of transplant law and hospital policy. Also allegedly present are at least six staff members, including critical-care specialist Laura Lubarsky, MD, a respiratory therapist, and several nurses. According to reports of unsealed records, at 11:10 pm, a transplant surgeon (presumably Roozrokh) orders 100 mg of morphine and 40 mg of lorazepam (Ativan) to be given to Navarro, despite the fact that the doctor does not have hospital privileges at Sierra Vista. Shortly thereafter, Roozrokh allegedly directs the respiratory therapist to remove Navarro’s ventilatory assistance, and Lubarsky tacitly agrees (per the respiratory therapist). However, once off the respirator, Navarro does not die. What apparently follows is a disagreement between Roozrokh and nurse coordinator Albright as to whether Navarro has a pulse: Roozrokh believes there is none, while Albright claims that she can see Navarro’s heartbeat through his emaciated chest (Navarro apparently weighed about 80 pounds; also, there is confusion in the press reports as to whether Navarro is hooked up to a heart monitor at this time). Allegedly frustrated with Albright, Roozrokh orders another large dose of morphine and lorazepam to be given to Navarro and is quoted as uttering the unfortunate phrase, "Let's just give him some more candy." (Reports indicate that astonishing doses of both medications are ultimately given to Navarro—200 mg of morphine and 80 mg of lorazepam.) Also at some point in time, Roozrokh suggests that the neuromuscular blocker vecuronium be given to Navarro; however, Albright objects. Roozrokh does administer Betadine through Navarro's feeding tube, presumably as a sterilization maneuver—which should be performed after death but before organ harvesting. From reports, it can be concluded that Roozrokh (possibly along with the rest of the transplant team) leaves Sierra Vista at approximately midnight. Navarro, still alive, is transferred back to the ICU at Sierra Vista.

 

  • 02/04/06, ~8 am: Ruben Navarro dies at Sierra Vista, and his death certificate is reportedly signed by Lubarsky. Navarro's cause of death is originally listed as cerebral anoxia with the contributing factor of respiratory arrest. Navarro’s organs are never harvested, there is no autopsy, and his body is cremated. Sometime later, Navarro’s cause of death is revised to "pending investigation."

 

  • Monday, 2/06/06: A Sierra Vista employee informs hospital administrators of the transplant-policy violation, and they contact the San Luis Obispo county coroner, the Medical Board of California, the California Department of Health Services, and the Joint Commission (the hospital-accrediting association). The medical board and county law enforcement officials begin their investigations.

 

  • 05/18/06: Roozrokh is placed on administrative leave from Kaiser Permanente, after learning of allegations against the physician.

 

  • 01/07: Roozrokh is reinstated by Kaiser Permanente, after "no new developments" in the investigations.

 

  • 03/07: The San Luis Obispo police turn their investigation of the Navarro case over to the county DA's office.

 

  • 06/29/07: Rosa Navarro, the patient's mother, files a civil suit against Sierra Vista, the California Transplant Donor Network, physicians Roozrokh and Martinez, and their employer, Kaiser Permanente Medical Group for assault, battery, fraud, civil conspiracy, negligence, medical malpractice, and intentional infliction of emotional distress. Reports also indicate that Ms. Navarro is suing her son's "primary care doctors" (naming Lubarsky, among others), as well as ResCare (a provider of disability services) and Casa de Vida. 

 

  • 07/30/07: San Luis Obispo county prosecutors charge Roozrokh with three felony counts: dependent-adult abuse, administering a harmful substance (Betadine), and the unlawful prescription of a controlled substance. If convicted, Roozrokh could face up to 8 years in jail and $20,000 in fines. Roozrokh is again placed on administrative leave from Kaiser Permanente.

 

  • 07/31/07: Roozrokh is booked at the San Luis Obispo county jail and is freed after posting a $10,000 bond.

 

  • 09/12/07: Roozrokh pleads not guilty to two counts, and his lawyer, M. Gerald Schwartzbach (who successfully defended actor Robert Blake), requests that the second count (administering a harmful substance) be dismissed.

 

  • 11/07: Ms. Navarro's civil suit against Sierra Vista and its parent company is settled for $250,000. Sierra Vista acknowledges no wrongdoing in the settlement, which covers all hospital employees who cared for Ruben Navarro on the night in question. (A disclaimer at Sierra Vista's website indicates, "Physicians performing services at Sierra Vista Regional Medical Center are independent contractors and not employees, agents or representatives of Sierra Vista Regional Medical Center," suggesting that physicians who cared for Navarro at Sierra Vista are still defendants in Ms. Navarro's civil suit.)

 

  • 11/07/07: A judge rules that Roozrokh can abstain from Rosa Navarro’s civil suit, for the time being.

 

Whatever the legal outcome of this unfortunate criminal case, it seems clear that Roozrokh (and Martinez) violated the laws and policies which justifiably dictate that a very large distance should remain between transplant surgeons and a potential, living organ donor. Moreover, Navarro's case reinforces the reasons for adhering strongly to these laws and policies.

 

My own experience indicates a general, hovering aggressiveness among this particular group of occasionally self-righteous physicians, which can be intimidating and requires some degree of backbone in those who should remain advocates for the still living—even if that living is anticipated to be very short. On more than one occasion, when asked to verify brain death in a potential donor, I've been pushed to the point of saying to this particular surgical breed, Back Off.

 

More on Heparin Extraction: Zzzzzz

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As a bone-dry counterpoint to the WSJ's graphic illustration of the heparin-extraction process in China, the Pathophilia blog is providing a chemically overloaded, non-stomach-turning algorithm (see pdf) for the product's manufacture. Much of the following information is obtained from that great bathroom-reading text Polymeric Materials Encyclopedia by Joseph C. Salamone, which is conveniently available through Google Books (so you can take your laptop with you into the toilet).

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Notably 40,000 kg of pig intestines creates only 5 kg of heparin. The Pathophilia blog has conjectured that the adverse reactions to Baxter's heparin were likely due to unacceptably high levels of endotoxin, as a result of inadequate depyrogenation (the penultimate step of heparin purification). 

*For you chem geeks and wannabes, quaternary ammonium salts include cetyltrimethylpyridinium chloride, cetyltrimethlammonium bromide, and Hyamine.

Ion-exchange resins include Dowex, ECTEOLA-cellulose, Amberlite IRA-904, and DEAE-Sephadex.

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A longituinal study funded by the National Institute on Aging suggests that cognitive impairment (CI) in the elderly is less likely in persons who have more years of education or greater net worth. The data were published online last month in the journal Alzheimer's & Dementia.

In individuals aged 70 years or older from the University of Michigan Health and Retirement Study, cognitive function was assessed over 2 years and compared between two cohorts from 1993 and 2002. After adjusting for age and sex differences, investigators found that higher education levels and net worth in the 2002 cohort accounted for approximately 40% of the group's decreased prevalence of CI (Table). The authors explain their findings, in part, by suggesting that a higher level of education is associated with the development of greater cognitive reserve in the setting of developing memory disorders, like Alzheimer's disease.

Variable

Cohort

P Value

1993 (n = 7406)

2002 (n = 7104)

Mean age, years

77.5

77.8

.02

Mean education, years

11.0

11.8

.001

Mean net worth, 1993 $

179,000

284,000

.001

Cognitive function

 

 

 

    Normal

87.8

91.3

.001

    Mild CI

5.2

3.5

.001

    Moderate/severe CI

7.0

5.2

.001

In both cohorts, the 2-year risk of mortality increased significantly with worsening CI (not surprising); however, the mortality risk in individuals with moderate or severe CI was higher in the 2002 cohort than in the 1993 group (adjusted-HR P = .09). In addition, lengthier education was associated with an increased mortality risk in those individuals with CIa finding that was of greater magnitude in the 2002 cohort.

The authors attempt to explain this curious finding by suggesting that the brains of more educated individuals can sustain a greater load of dementia-causing brain pathology, before reaching a clinically important threshold. However, once this clinical threshold is reached, their cognitive decline is more precipitous, and their mortality risk is consequently greater.

Kick-Back Friday: #2

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Recommended this week is the heist knockout The Killing, directed and cowritten by Stanley Kubrick and starring paragon tough guy Sterling Hayden (Dr. Stangelove, The Godfather). The 1956 noir classic features a motley ensemble of stock low-lifes, who get to exchange terrific dialogue like, "All right, sister, that's a pretty head you got on your shoulders," followed by, "You wanna keep it there or carry it around in your hands?" In my next life, I will be the late 21st century's answer to Marie Windsor as Sherry Peatty.

A big nod goes to the In Vivo Blog today for providing more background on APP and its CEO Patrick Soon-Shiong. Seems the company's top boss is not a stranger to less-than-stellar foreign drug suppliers, after alldespite his arguably opportunistic and hyperbolic assurance of the safety of APP's heparin in yesterday's WSJ.*

It all started way back in June 1998, when APP acquired Fujisawa's worldwide injectable pharmaceutical business. At approximately the same time (May 1-June 29), the FDA began receiving reports from a Los Angeles hospital of endotoxin-like adverse reactions (reactions not dissimilar to those recently described with Baxter's recalled heparin) after the administration of Fujisawa-produced IV gentamicin.

According to a 1998 MMWR report, the reactions were likely due to high endotoxin levels in the Fujisawa gentamicin, particularly with once-daily dosing of the drug (an unapproved regimen often used to reduce the risk of antibiotic-related ototoxicity and nephrotoxicity). Endotoxin levels in Fujisawa's product ranged from 25.6 to 32.0 endotoxin units (EU) per mL, while levels in gentamicin samples from another manufacturer were less than 2.0 EU/mL. The allowable limit for endotoxin in antibiotics, per USP standards, is 68 EU/mL. So, although the endotoxin levels in Fujisawa's antibiotic were within USP standards, the larger once-daily administration of the product likely delivered enough endotoxin to cause the pyrogenic reactions. The MMWR indicated that these kinds of reactions had not been observed previously with once-daily gentamicin.

APP voluntarily withdrew the Fujisawa antibiotic in November 1998, while still defending the product's safety and blaming the endotoxin-like reactions on the once-daily dosing, according to a 2002 NYT article. The company reintroduced the gentamicin in June 1999; but after additional adverse reactions were reported, the drug was again withdrawn. The NYT article also indicated that the high endotoxin levels in the gentamicin lots were traced to a Fujisawa plant and further implicated substandard conditions at a Chinese supplier; however, the article did not identify either facility by name or specific location.

Information from a 1998 article in the FDA Consumer and a 2000 article from Health-System Pharmacy News indicate that the suspect gentamicin from APP/Fujisawa had actually been provided by a New Jersey drug broker, Flavine International. According to these reports, Flavine had obtained gentamicin in 1995 from unapproved Chinese sources and had then repackaged the product to resemble antibiotic from Fujisawa's legitmate (and FDA approved) Chinese supplier, Long March Pharmaceutical Plant.** Flavine then sold the counterfeit gentamicin to Fujisawa (as well as to ESI Lederle).

According to HSPN, the FDA became aware of Flavine's counterfeit gentamicin sometime during the mid-90s, while investigating another counterfeit antibiotic (used for veterinary purposes) offered by Flavine. However, the FDA did not follow-up with any of Flavine's gentamicin purchasers (namely, Fujisawa) to ensure that the counterfeit drug was no longer on the market. These events predated the endotoxin-like reactions associated with APP's/Fujisawa's gentamicin in 1998.

*How anybody can ensure the ability to trace a heparin lot to a single pig defies all common sense, especially given the WSJ's images of intestinal slurries and gut-decorated wringing machines in China, even at the ostensibly modernized plant.

**In December 1999, Long March was cited by the FDA for deviating from good manufacturing processes, and the company's gentamicin was recalled at that time.

Tomorrow's issue of the MMWR reports on the multistate outbreak of documented measles cases related to the travel of an infected 12-year-old Japanese baseball player to the 2007 Little League World Series in Williamsport, Pennsylvania. The boy, whose vaccination status was unknown, flew on an international flight from Japan to Detroit and then on a domestic flight from Detroit to Baltimore on August 13, after acquiring the infection from his brother in Japan. Subsequent, documented transmissions of measles from this index case (1) are outlined below.

Case 2: Another 12-year-old Japanese boy was in contact with the index case in Japan on August 12. He arrived in the United States on August 15 and attended the World Series as a spectator; he first became ill August 20.

Case 3: A 53-year-old woman, who sat in front of the index case on the domestic flight from Detroit to Baltimore, became ill with measles on August 25.

Case 4: A 25-year-old federal airport officer, who worked in the customs area of the Detroit airport on August 13, first developed measles symptoms on August 23. He had no documented history of measles vaccination.*

Case 5: A 40-year-old corporate sales rep met the index case on August 14 in Pennsylvania and developed measles symptoms on August 26. He had no documented measles vaccination.

Case 6: An 18-year-old college student attended a sales event in Texas with the 40-year-old rep on August 20. Despite having previously received 2 doses of MMR vaccine, he developed symptoms on September 9.

Case 7: A 19-year-old college student, the roommate of case 6, attended the same sales event of the 40-year-old rep on August 20. He also had a history of receiving 2 MMR vaccine doses but developed symptoms on September 10.

According to the MMWR, the viral genotype from the index case was identical to the genotypes obtained from cases 2, 3, 5, 6, and 7. (Amplification attempts to genotype case 4 were unsuccessful.) The report provides a useful graphic, which illustrates the chain of measles transmission, and reinforces the importance of vaccination regardless of travel history. While 2 doses of measles vaccine are reportedly 99% effective, the disease remains possible in those persons who have been vaccinated (namely, cases 6 and 7). The report also emphasizes that those individuals who were born before 1957before the institution of routine MMR vaccination during childhoodmay be susceptible to infection (eg, case 3). 

Although all of the affected individuals recovered, measles is not necessarily a benign illness. The 40-year-old rep required hospitalization for high fever and pneumonia and experienced an epileptic fit, according to the report. Widely reported is the statistic that approximately 1 measles case in 1000 is associated with the development of encephalitis.

*A coworker of the officer developed measles approximately 1 month later; however, it is unclear if this case is related to case 4, either directly or indirectly. (The typical incubation period for measles is 7-18 days.)

The WSJ Has Gordon Fairclough in China

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After "blowing brains" at the "head table," today's WSJ describes in words and pictures possibly the second worst job in the world and answers my question, Where Does Heparin Come From? Specifically the article features an unsettling slide show in which Chinese workers wring and slurry pig intestines for heparin extraction (thanks, Mr. Fairclough).

The article also highlights contrary views on the importance of being able to trace heparin's source for safety purposes, possibly to an individual pig. The FDA contends that heparin's chemical-purification process ensures the product's safety, regardless of the source animal, while the chairman of APP (Baxter's heparin rival) asserts that a heparin-pig provenance record is essential.

According to the WSJ, APP's Chinese heparin supplier claims that it can trace its product to a single animal. However, given the seemingly routine maze of middlemen and facilitiessome very crudethat exist between slaughterhouse and final supplier in China, this claim would be best viewed skeptically.

Still unknown is whether any of this information has anything to do with the severe allergic reactions associated with Baxter's recalled heparin. Buried deep (graf 6) in a WSJ article from February 19 is the claim that "Baxter disclosed that the variations [of its recalled heparin] from standard product occurred in the Chinese-made batches," but the company has otherwise kept mum.

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A recent review of the world status of leprosy at the Pathophilia blog produced a curious footnote: a substantial percentage of armadillos (Dasypus novemcinctus, aka 9-banded or long-nosed armadillos) in Louisiana and Texas harbor the infectious agent that causes human leprosy. This notation begs the question: How did US armadillos—which are the only known natural hosts for the leprosy pathogen Mycobacterium leprae, other than humans—acquire the infection?

 

The answer is provided at least partly in a 2005 review article by Richard W. Truman, PhD, of Louisiana State University and the National Hansen's Disease (Leprosy) Program, who reports that a leprosy-like illness was first discovered in wild US armadillos as early as 1975 and later confirmed to be prevalent among these animals in the lowlands of Louisiana and Texas. The armadillo appears to be particularly susceptible to M. leprae as a consequence of its naturally low core body temperature, which runs from 32°C to 35°C (89.6°F-95°F).

 

Truman notes that captive armadillos were first used to propagate M. leprae experimentally in 1968, after it was recognized that the animal's cool temperature would be favorable to the organism's growth. However, it was observed 7 years later that some wild armadillos near New Iberia, Louisiana, already harbored M. leprae, raising the issue of how these animals became infected.

 

Original speculation raised the possibility that leprosy in wild US armadillos was the result of the escape or improper disposal of experimentally infected, captive animals. However, this contentious hypothesis was disproved in 1985, Truman writes, when armadillo sera from 1960-1964, collected and stored at LSU before experimental animal inoculation, demonstrated antibodies to M. leprae.

 

Through animal surveys, it is now known that approximately 15% of armadillos living along the coastal areas of Louisiana and Texas are infected with M. leprae; although one third or more of all adult armadillos may be infected in concentrated areas. Yet it has still not been definitively established when or where US armadillos acquired leprosy. According to Truman, single-nucleotide polymorphism (SNP) analysis indicates that leprosy was brought to North America by European and African immigrants, and that armadillos—which are indigenous to North America and likely migrated to the United States from Mexico—harbor the same M. leprae strain that originated in Europe and Africa. Truman concludes that the animals must have acquired the organism from immigrant humans some time during the last 400 years, but that the animals "could be commonly exchanging the organism with humans today."

 

Surveys of leprosy rates in armadillos outside of the United States, and specifically those in Mexico, are slim to nonexistent, according to Truman; although, diagnosed cases of leprosy among Mexican immigrants in Houston and Los Angeles suggest that armadillo exposure is a significant risk factor for the illness. A study published just last year assessed the leprosy rate in 37 field-tested armadillos in the State of Espírito Santo, Brazil, where leprosy is particularly prevalent and exposure to armadillos common.* Investigators found an armadillo infection rate of approximately 30%.

 

In an e-mail communication, Truman indicates that several groups are beginning to survey for leprosy in Venezuelan and Colombian armadillos, as well as those in Brazil. But a substantial amount of information must be collected before any conclusions can be drawn about the relationship between US and South American infection data. To better understand the role of armadillos in the perpetuation or spread of leprosy, Truman and his colleagues are engaged in large genotyping studies of M. leprae strains that are circulating throughout the United States. He reports, "We have found that infection among armadillos appears to be more widespread than previously known."

 

* The potential relationship between armadillo exposure and human leprosy in Brazil is important, because infected Brazilians make up approximately one half of all registered leprosy cases in the Americas. The study authors note that, in the State of Espírito Santo, armadillos are often killed and consumed.

APP: Aiming for a Heparin Monopoly?

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In its gosh-darn eagerness to respond to a potential heparin shortage (due to the recall of Baxter's heparin products), rival APP announced yesterday that it would ramp up its production of the "critical therapeutic heparin multi-dose vials." In its press release, APP reminded the world that it acquires the active ingredient in its heparin products from several manufacturers, including a Chinese plant, which have all been inspected by the FDA (unlike the Chinese facility of Baxter's heparin supplier).

Also in the press release, APP President Tom Silberg states that, "prior to this crisis," his company supplied approximately 50% of the therapeutic heparin prescribed in the United States. Baxter reportedly provided the other 50%, before the recallwhich consequently leaves a nice big share of the therapeutic heparin market for APP to gobble up, unless Baxter can recover the trust of prescribers with lightening speed.

No Wonder Chinese ED Pills Work

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On February 15, The Netherlands Health Care Inspectorate reported its identification of large doses of tadalafil (Cialis; Eli Lilly), vardenafil (Levitra; Bayer, GSK, Schering) and acetildenafil, an analog of sildenafil (Viagra; Pfizer), in imported Chinese "herbal" impotence pills. According to an AP report, thousands of the pills were intercepted approximately 2 weeks ago at Amsterdam's Schiphol Airport and sent for analysis by the Dutch authorities.

 

The confiscated pills were to be sold under the names Herb Vigour, Natural Vigour, and China Vigour* and were found to contain as much as 2.5 times the maximum dose of one of the selective phosphodiesterase inhibitors, which are FDA approved for the treatment of erectile dysfunction (ED) and available only by prescription. Common, reported serious adverse events associated with these medications in the postmarketing setting—such as cardiovascular events and vision or hearing changes—are more likely to occur with the use of higher-than-approved doses.

 

A web search reveals that identically named products are currently sold through a number of dubious web sites, several of which identify Kunming Dali Industry & Trade Co, Ltd, in the Yunnan Province as the producer and/or distributor. However, the company's web site—which features a prominent head shot of Jessica Alba and offers a number of questionable "herbal" remedies—does not list male-enhancement products in its online catalog. Nevertheless, a "Man Sex Product Message Board" at the web site indicates the availability of "Herbal Viogra" from the company to resellers as of November 2007.

 

The Dutch authorities report that they have not yet identified the manufacturer of the intercepted pills. According to a statement made to the AP, the company name printed on the pills' packaging (which was not revealed in the AP report) has not been verified. The Inspectorate did inform relevant authorities worldwide, including the FDA, of the intercepted pills.

 

Since 2003, the FDA has recalled a number of nonprescription sex-enhancement pills—"Viga for Women," "Nasutra," "Liviro3," "H S Joy of Love," "True Man's Sexual Energy Nutriment Men's Formula," and "Long Weekend" (big eyeroll there)—because they contained undeclared tadalafil, vardenafil, or sildenafil or chemical analogs.

 

*Herb Vigour (orange capsules) contains 2.5 times the maximum dose of tadalafil; Natural Vigour (red capsules) contains 1.5 times the maximum dose of vardenafil; and China Vigour (orange-and-gray capsules) contains 1.5 times the maximum dose of acetildenafil, an analog of sildenafil.

Buried deep in today's WSJ update of the investigation into allergic reactions associated with Baxter Healthcare's heparin ("Baxter Rival APP Steps in Quickly to Supply Heparin") is an indication that irregular heparin batches came from a supplier's Chinese plant (Scientific Protein's Changzhou SPL).

[Y]esterday Baxter disclosed that the variations from standard product occurred in the Chinese-made batches.

There is otherwise little information regarding the nature or source of variations in Baxter's affected heparin lots that may have caused the adverse reactions, and the WSJ story implies that Baxter is tight lipped about further details. The Pathophilia blog has speculated that inadequate heat treatment during heparin manufacture may have resulted in higher-than-trace amounts of bacterial endotoxin in the product.

Numerous news stories reveal that Scientific Protein's Changzhou plant had not been inspected by the FDA, because the name of the plant was confused with that of another Chinese facility, which the FDA had reportedly already inspected. Baxter claims that it inspected the Changzhou facility approximately 6 months ago, according to the WSJ, and an FDA team plans to conduct an on-site inspection this week. The WSJ also reports that the FDA is inspecting a Baxter facility in Cherry Hill, NJ, and Scientific Protein's plant in Wisconsin.

Meanwhile, rival heparin maker APP of Schaumburg, IL, has moved to fill the void created by Baxter's heparin-lot withdrawals and is likely to capitalize on the desire of hospital and dialysis-center administrators to avoid Baxter's heparin altogether. Some of the active ingredient in APP's heparin is manufactured at a Chinese facility, which has been inspected by the FDA, according to the WSJ.

In memoriam Baba Amte: a review of the worldwide status of leprosy.

 

Leprosy_WHO.jpg
First described in the 6th century BCE, leprosy is a chronic, nonfatal disease due to infection with the acid-fast bacillus Mycobacterium leprae. Following inoculation with the organism and a lengthy incubation period of years or even decades, clinical illness typically manifests in the cooler parts of the body—the skin, peripheral nerves, anterior eye, upper respiratory tract, and testes. Untreated, the disease is notorious for causing permanent disfigurement and deformity—often the result of neuropathy-associated injury—which consequently leads to social stigma and isolation.

 

Despite the historical segregation of lepers in colonies, the disease is not highly contagious. In untreated individuals, M. leprae is most likely transmitted to close and frequent contacts by means of respiratory droplets; however, transmission through colonized soil has also been postulated. Infected individuals are no longer contagious, however, after the first dose of multidrug therapy (dapsone, rifampicin, and clofazimine), and within 12 months of treatment, the disease is cured with (according to WHO) virtually no risk of relapse. Leprosy-related disability is averted with early treatment.

 

In 1991, the World Health Assembly resolved to eliminate leprosy (that is, to reduce the prevalence rate to <1 case per 10,000 persons) by the year 2000, and WHO claims that this goal overall was achieved. From 1985 to 2007, the number of world citizens affected by leprosy dropped by 96%, from 5.2 million to less than 225,000. As of 2007, leprosy was virtually eradicated in all but 4 of 122 countries where the disease was believed to be a public health problem in 1985 (Wkly Epidemiol Rec. 2007;82:225-32; Wkly Epidemiol Rec. 2007;82:388). Leprosy cases in these 4 countries—Brazil, the Democratic Republic of the Congo, Mozambique, and Nepal—accounted for nearly one quarter of all new cases globally in 2006 and one third of all registered cases at the beginning of 2007, according to WHO.

 

Leprosy.png

The number of leprosy cases in Brazil (60,567) makes up approximately half of all registered cases in the Americas. The National Hansen’s Disease (Leprosy) Program indicates that 166 new cases of leprosy were reported in the United States in 2005 (the most recent year for which data are available), and 60% of these cases occurred in 5 states: California, Texas, Louisiana, Massachusetts, and New York.* Although leprosy in the United States has been reported to affect immigrants preferentially, approximately half of the individuals infected in 2005 described themselves as white.

 

WHO advises that those with leprosy can receive free multidrug therapy from the organization, through a donation from Novartis and the Novartis Foundation for Sustainable Development. WHO acknowledges that the stigma of leprosy continues to hinder self-reporting and treatment and urges that “[a] new environment, in which patients will not hesitate to come forward for diagnosis and treatment at any health facility, must be created.”

 

*Notably, 9-banded armadillos are believed to be a reservoir for M. leprae in the United States; 15% of these animals in Texas and Louisiana are reported to be infected with the organism.

The antiplatelet drug clopidogrel (Plavix; sanofi-aventis, Bristol-Myers Squibb) is a standard and recommended mainstay treatment for acute coronary syndrome. However, because of the drug's irreversible activity on platelets, the associated risk of bleeding may be unacceptable if coronary artery bypass grafting (CABG) is determined to be necessary within a certain window of time. This bleeding risk is attenuated after clopidogrel is discontinued, and platelets are allowed to regenerate in approximately 5-7 days.

 

The postoperative use of blood products (as a surrogate marker of bleeding) after clopidogrel administration was assessed by investigators at Wake Forest University in 100 consecutive patients who underwent CABG. Results of their single-center, prospective, observational study were published in this month’s issue of Pharmacotherapy. Patients were stratified on the basis of when clopidogrel was last administered at the time of surgery: within 5 days, within 3 days, or at or after 5 days.

 

The mean number of transfused RBC or platelet units (see Table) was significantly greater in patients who underwent CABG within 3 or 5 days of clopidogrel administration than in those patients who underwent surgery at or after 5 days. These data support the general recommendation that CABG should be delayed, if possible, for at least 5 days after the last received clopidogrel dose, to reduce the risk of blood-product use.

 

Patient Group

Mean RBC Units Transfused per Patient

Mean Platelet Units Transfused per Patient

CABG within 3 days (n = 21)

3.1 ± 2.8
(P < .005)

2.6 ± 1.5
(P < .007)

CABG within 5 days (n = 36)

2.1 ± 2.5
(P = .009)

1.9 ± 1.6
(P < .001)

CABG at ≥5 days (n = 64)

1.1 ± 1.4

0.5 ± 0.9

Note.—P values are for comparisons with the group who underwent CABG at ≥5 days.

Kick-Back Friday: #1

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Not a bad, illegal kickback. A good, healthy kick back (as in let's...).

Innocents.jpg

Recommended by the Pathophilia blog is The Innocents, a black-and-white gem from 1961 based on Henry James's novella The Turn of the Screw, with a screenplay cowritten by Truman Capote. A very addlepated Deborah Kerr is the governess of two either benign or deeply troubled children. Watch it on a cold, dark February night and expect to jump out of your skin on more than one occasion.

Where Does Heparin Come From?

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Today, the WSJ continues its coverage of the possible link between severe allergic reactions to Baxter's unconjugated heparin products, particularly when used in bolus fashion, and the products' manufacture, which includes the use of raw material from a plant in China. According to the WSJ, Baxter is attempting to determine the source of the adverse reactions by comparing the chemical profiles of potentially affected heparin lots with those of quality-control batches.

 

A search for a description of heparin's manufacturing process is surprisingly elusive, especially given the long-term and widespread manner in which the agent has been prescribed in hospital. An extensive search of the medical literature suggests that a detailed "methods" description is long buried somewhere in an article from nineteen-dickety-two. Today's WSJ provides a superficial (understandably) description of the process: "[R]aw [pig] intestines are exposed to an enzyme and then to a resin that separates the heparin from the rest of the liquid. The end product is heat-treated to destroy microorganisms." A web page at the site of Scientific Protein Laboratories, the chemical supplier of Baxter's heparin, provides the following graphic outlining the processing of heparin at both its Wisconsin and Chinese facilities.

 

hep_chart.gif
Also, a related link details the chemical specifications of Scientific Protein's heparin product, indicating that it should contain not more than (NMT) a certain amount of bacterial endotoxin (0.03 USP EU) per heparin unit. It is pure speculation here at the Pathophilia blog, but it seems possible that higher-than-standard traces of endotoxin in the affected heparin lots—possibly the result of inadequate heat treatment—could account for the severe adverse reactions observed with the bolus administration of Baxter's heparin.

Making the news rounds this morning are the favorable phase 2 efficacy results of rituximab (Rituxan; Genentech, Biogen Idec) in relapsing-remitting multiple sclerosis (RRMS). These data, published in this week’s NEJM, were originally presented in May at the 2007 annual meeting of the American Academy of Neurology by the article’s first author, Stephen Hauser, MD. So for the practicing neurologist, there is little that is actionable news here.

 

Nevertheless, to provide a very abbreviated Cliff Notes version of the data, rituximabwhen compared with placebo—significantly reduced the mean number of active lesions on brain MRI* and the percentage of individuals who experienced clinical relapses during a 24-week period. The data compare favorably with those for the monoclonal antibody natalizumab (Tysabri; Biogen Idec, Elan) in relapsing disease, although the development of Biogen's other comarketed mAb in MS has reached postmarketing phases (Miller DH et al. Neurology. 2007;68:1390-1401; O'Connor PW et al. AAN 2007. Poster P06.082). Adverse events associated with rituximab use were not unexpected and included predictable infusion-related events, which subsided with repeated administration of the drugalso predictably.

 

Yet despite these positive phase 2 results with rituximab, no phase 3 trials of the mAb in RRMS are listed in the NIH clinical-trials database. The evident stalling of the phase 3 investigation of rituximab in RRMS appears to have everything to do with disagreements between Genentech and Biogen Idec regarding the continued clinical development of rituximab and another anti-CD20 mAb—specifically, ocrelizumab or "son of Rituxan."

 

According to a May 2007 report by thestreet.com, operating profits for rituximab are split 60-40 between Genentech and Biogen Idec, respectively. But profits for ocrelizumab will be split 70-30 in Genentech's favor, which accounts for Genentech’s enthusiasm to move ahead with the development of ocrelizumab in MS, at the expense of rituximab. Obviously Biogen has less of a financial incentive to promote the development of the second-generation mAb. Moreover, approval of a product that is considerably more effective in MS than Biogen's formulation of interferon beta (Avonex) and that is potentially as effective as rituximab or natalizumab could eat into the company's considerable profits from all 3 drugs. Avonex sales made up a whopping 60% of Biogen’s sales in 2007, while rituximab sales accounted for approximately 30% of revenue (and natalizumab, 7%).

 

Genentech comments on its development dispute with Biogen Idec at the pipeline web page for ocrelizumab:

 

Our collaborator Biogen Idec disagrees with certain of our development decisions under our 2003 collaboration agreement related to humanized anti-CD20 products. We continue to pursue a resolution of our differences with Biogen Idec. The disputed issues were submitted to arbitration in San Francisco, California. Resolution of the arbitration could require that both parties agree to certain development decisions before moving forward with humanized anti-CD20 antibody clinical trials, and possibly clinical trials of other collaboration products, including Rituxan, in which case we may have to alter or cancel planned trials in order to obtain Biogen Idec's approval.

 

*Gadolinium-enhancing T1 lesions.

†According to the NIH clinical-trials database, rituximab is scheduled to be investigated in a much rarer form of MS, primary-progressive disease (phase 2/3 study).

In the course of a short week, it was bad news followed by possibly good for the makers of the monoclonal antibody natalizumab (Tysabri; Biogen Idec, Elan).

 

First, the NEJM published a letter from physicians at Boston’s Beth Israel Deaconess Medical Center, who reported 2 cases of melanoma in women treated with natalizumab for multiple sclerosis. Both women had preexisting nevi from which the cancer arose in association with natalizumab therapy.* One woman had a strong family history of melanoma. These cases can be added to one other, fatal case of melanoma described in a pivotal trial of natalizumab in relapsing MS.

 

The NEJM letter authors speculate that the development of melanoma may be promoted by natalizumab in susceptible individuals, owing to the monoclonal antibody's activity against the α4 subunit of the α4β1 integrin receptor. In mice, the expression of α4β1 integrin on melanoma cells ultimately inhibits early melanoma metastasis, and receptor inhibition is associated with the invasive and migratory properties of melanoma cells. In addition, antibodies to α4β1 integrin may downregulate anti-melanoma lymphocytic responses.

 

Second, in the February 10 online issue of Nature Immunology, NIH investigators and others reported that activated α4β7 integrin in the gut mediates the binding of the HIV surface protein gp120 to natural killer and T cells. Moreover, the signaling produced by the interaction between gp120 and α4β7 activates another integrin (LFA-1) that promotes HIV infection. According to the authors, several monoclonal antibodies that bind the α4 subunit disrupted the binding of gp120 to α4β7—suggesting that anti-α4β7 mAbs may be effective in the treatment of HIV.

 

In addition to binding the α4 subunit of α4β1, natalizumab also binds to the α4β7 integrin, a property that accounts for the mAb's activity in Crohn’s disease. Consequently, natalizumab may be one of the anti-α4β7 mAbs worthy of early investigation in HIV infection.

 

*Owing to the uncommon risk of progressive multifocal leukoencephalopathy, natalizumab is currently only available through a mandatory prescribing program.

†Gut-associated lymphoid tissue (GALT) is the principal site where HIV replicates and establishes infection.

Cafepharma Reassures Anonymous Posters

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In a message created last evening, Cafepharma webmaster Sarah Palmer reassured anonymous posters that the website has no identifying information to provide the Congressional committee for its investigation of the ENHANCE study.

We've been getting a lot of questions about the Congressional Committee's request. We will not have any user information to provide related to anonymous posts, since we have not recorded any such information. At this point, we do not believe that there will be any relevant posts related to registered users.

Schering-Plough, Merck, and the delayed ENHANCE study results continue to receive negative attention thanks to the recent salvo of Congressional letters to the drugmakers and others. The WSJ Health Blog reported yesterday that Representatives John Dingell and Bart Stupak (leaders of the House Committee on Energy and Commerce) sent a letter to SP's CEO, Fred Hassan, and to the CEO of Merck (comarketer of Vytorin [ezetimibe/simvastatin]), Richard T. Clark, asking follow-up questions generated by SP's ENHANCE study timeline. Specifically, the congressmen want to know the names of the SP biostatisticians who were involved in the "routine quality review" of the ultrasound data as early as 2005.

 

The congressmen also fired off a letter to Andrew C. von Eschenbach, MD, FDA Commissioner, asking for the agency’s protocol information on the ENHANCE trial. And last, not to leave cyberspace out of the mix, the Representatives sent a letter to the webmaster of the freewheeling Cafepharma, asking for the identities of anonymous (and presumed insider) posters who indicated that they knew about the negative ENHANCE results as early as March 2007.

 

Now this last, arguably laughable Congressional step amounts to wanting to know who scribbled what graffiti on the wall of a public restroom.* However, the representatives, perhaps sensing the absurdity of their request, do give the website operators an out by stating, "If such information is not available, please provide your companies' policies relating to maintaining and/or storing such information relating to messages posted on Cafepharma.com"—to which Cafepharma is likely to reply with their privacy policy ensuring anonymous message-board posting.

 

No matter. The ENHANCE timeline provided by SP clearly indicates that their biostatisticians knew of data-quality problems during the latter of half of 2005. It'd be surprising if that information hadn't percolated up the SP executive ladder by 2006. Now whether insider knowledge of the ENHANCE data influenced SP or Merck execs to unload stock is yet to be determined. But the answer hinges on whether execs were sufficiently clairvoyant to know that suboptimal data from a relatively small study in a population with an uncommon form of genetically determined atherosclerosis would attract such fanatical attention.

 

And if I’ve written it once, I’ll write it again: Given the poor quality of the ultrasound data in the ENHANCE study, we still don't know if the combination of ezetimibe and simvastatin is associated with greater atherosclerotic-plaque stability, or even reduction, than simvastatin alone in patients with heterozygous familial hypercholesterolemia.

 

*I’m sure there's a joke to be made here about the attraction between Congressmen and public restrooms, but I can't quite work out a draft.

On Friday, the WSJ reported that Merck agreed to pay out more than $650 million in its settlement of two qui tam (ie, “whistleblower”) lawsuits. In the suits, Merck allegedly used a historically exploited exception to the 1990 Medicaid Drug Rebate Program, which otherwise requires drug makers to report the lowest prices they charge to any entity not excepted by the law. The law’s exception—originally intended to foster deep drug discounts to charities and certain state-run facilities—specified that drug discounts of 90% or more (ie, "nominal prices") do not have to be disclosed to the government or included in the seller's best-price calculation for Medicaid reimbursement.

 

The qui tam lawsuits were specifically directed at the widespread practice of loosely applied nominal pricing, in which drug companies offered extreme medication discounts to health care facilities in exchange for formulary preference, and thus a sizeable market share for the drug. According to a 2003 report by the WSJ, the suit brought by qui tam relator and New Orleans geriatrician William LaCorte, MD, alleged that, from 1996 to 2001, Merck sold each tablet of then-prescription famotidine (Pepcid) to some New Orleans hospitals for $0.10, while charging Medicaid approximately $1.65 per tablet.

 

In its February 7 press release, Merck acknowledged the settlement, while asserting that it did not constitute an admission of guilt. The company also clarified that it believed "its pricing and sales and marketing policies and practices were consistent with all applicable regulations and contracts during the relevant time." The company also claims that it "voluntarily began to put in place substantial compliance initiatives in 2001," which raises the question If Merck’s pricing practices were consistent before 2001, why did it have to initiate compliance initiatives in 2001?

 

A December 2006 clarification of nominal pricing is provided in a DHHS document to state Medicaid directors, which defines nominal prices as those offered to 1) a covered entity described in section 340B(a)(4) of the Public Health Service Act; 2) intermediate-care facilities for the mentally retarded, and (3) state-owned or -operated nursing facilities. The document further clarifies that "[n]ominal sales to other entities must be included in the drugmaker’s best price."

Seeing nefarious deception where there’s perhaps just silliness and embarrassment, a Congressional committee wants information about the use of a rowing body double for Robert Jarvik, MD, in the overplayed Lipitor TV ads. According to today’s NYT, the committee sent out letters yesterday to 9 advertising firms (IMC2; the Maya Group; Cline, Davis, & Mann; ARS Group; Guideline; Ipsos-ASI; Ipsos-Understanding; the Kaplan Thaler Group; and Unit 7), asking for relevant records and raising the musical question Just how many agencies does it take to create a TV ad campaign?

 

The committee wants information regarding payment made to a body double, who was revealed yesterday by the NYT to be Seattle rower and Jarvik look-alike Dennis Williams. Thanks to the NYT, the committee members can now locate the remuneration figure by reading the April 2006 newsletter of the Lake Washington Rowing Club, which reveals that member Williams was paid $550 per day for his Lipitor stunt-double stint. (Compare this rate with the $1.35 million that the Pfizer contract provides to Jarvik for 2 years of Lipitor pitching.)

 

The NYT also reports that the committee wants to know if Jarvik body doubles were used in other versions of the Lipitor ads. The congressional inquiry conjures up the notion that Pfizer has collected a small, specialized army of Robert Jarviks, ready to stand in for the pitchman whether he’s rowing, batting, kicking a field goal, triple jumping, high jumping, ice dancing, or 2-man luging with himself. But I ask Why stop with an athletic body double? Why not just collect your big fat check, while someone much better looking than you impersonates you throughout the entire ad?

According to Federal indictments handed down yesterday, the president of ChemNutra, a Las Vegas-based importer of Chinese food products, conspired to bypass the mandatory Chinese inspection of several hundred tons of wheat gluten that it imported into the United States from November 2006 to February 2007. The imported Chinese wheat gluten, which ChemNutra subsequently shipped to various pet-food manufacturers throughout North America, was later identified by the FDA to contain melamine, an ersatz-protein additive. Melamine-laced wheat gluten in pet food is believed to have contributed to the illnesses and deaths of an unknown number of pets in 2007.

The two indictments, which were described in a press release yesterday by the US Attorney for the Western District of Missouri, John F. Wood, named defendents Sally Qing Miller, corporate president of ChemNutra, her husband, Stephen S. Miller, CEO of ChemNutra, as well as Suzhou Textiles (SSC), a Chinese broker, and Xuzhou Anying Biologic Technology Development Co (XAC), the manufacturer of the melamine-spiked wheat gluten. Also indicted were Chinese nationals Zhen Hao Chen, president of SSC, and Mao Linzhun, owner and manager of XAC, both of whom are believed to reside in China. 

Detailed in one indictment is a series of e-mails, beginning in April 2006, between Ms. Miller and the Chinese broker SSC, in which references to two product-descriptive coding numbers on the shipped wheat gluten were made. Only one of these coding numbers would initiate the mandatory inspection of wheat gluten before leaving China, while the other would bypass inspection. It is suggested in the indictment that Ms. Miller knew which coding number would initiate the required Chinese inspection and conspired with SSC, who intentionally mislabeled the exported wheat gluten with the coding number that averted Chinese inspection. Ms. Miller then facilitated US importation of the wheat gluten by providing the correct coding number to an unnamed domestic broker who received the shipments. More specifically, it is indicated in the indictment that, in November 2006, Ms. Miller e-mailed to the domestic broker a certificate of origin for the wheat gluten, which had been prepared by a Chinese company other than SSC for wheat gluten that had been manufactured by a company other than XAC. This certificate of origin contained the coding number that would have mandated Chinese inspection. 

Also according to the indictments, ChemNutra sold and shipped the melamine-tainted Chinese wheat gluten to pet-food manufacturers with a "certificate of analysis" indicating that the product was at least 75% wheat gluten, but ChemNutra did not inform the purchasers that the wheat gluten had bypassed inspection or was imported with the use of incorrect coding numbers. In a statement provided to the New York Times, ChemNutra clarified that "the government had not accused the Millers of knowing that there was melamine in the wheat gluten."

McCain Not So Pharma-Friendly

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Today, the WSJ Health Blog raises the argument that current GOP frontrunner, John McCain, may not offer the big bear hug to pharma that is otherwise expected of a Republican President. Specifically, McCain currently supports the importation of prescription drugs from countries that negotiate cheaper prices and the removal of the 2003 ban on Medicare to negotiate prescription drug costs (just like Obama). In fact, it is reported that McCain voted against the drug-benefit expansion of Medicare because of the negotiation ban.

The WSJ blog post also points to the site of the Center for Responsive Politics, which keep tabs on who receives how much money from where. Below is a graphic display of the pharma contributions to the current Presidential candidates on the basis of the Center's data, showing Clinton and Obama inexplicably out in front and Huckabee with why-bother chump change.

Pharma Contributions.pngThe WSJ post also provides a link to a nice side-by-side comparison from the Henry J. Kaiser Family Foundation of the respective health care plans of Clinton, McCain, and Obama. An edited excerpt addressing issues related to prescription drugs is provided at the Pathophilia blog.

McCain

Clinton

Obama

Require drug companies to reveal the price of their drugs

Allow reimportation of drugs

Encourage faster introduction of generics and biologics

“Smart purchasing” initiatives to constrain prescription drug and managed care expenditures

Permit the Secretary to negotiate prices for Medicare prescription drugs

Limit direct-to-consumer advertising of prescription drugs

Change patent laws to increase the availability of generic drugs

Reduce payments to Medicare Advantage plans [which may include prescription drug coverage] to create more level reimbursement with traditional Medicare

Initiate policies to promote generic drugs

Allow drug reimportation

Repeal the ban on direct price negotiation between Medicare and drug companies

Official Cause of Ledger's Death Reported

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The Office of the Chief Medical Examiner of New York reports today that Heath Ledger died of an accidental overdose of 2 prescription opiates, 3 benzodiazepines, and an over-the-counter antihistamine sleep aid: oxycodone (eg, OxyContin), hydrocodone (eg, Vicodin), diazepam (Valium), temazepam (Restoril), alprazolam (Xanax), and doxylamine (eg, Unisom). Although various news stories reported that zolpidem tartrate (Ambien) was found in Ledger's apartment at the time of his death, the drug was not identified in the ME's report.

Today, the Carlat Psychiatry Blog points to the recently published results of the 2007 annual CME survey of physicians conducted by MeetingsNet.com, and in more or less predictable fashion, Dr. Carlat leads by stressing the overwhelming perceived bias in CME among survey respondents (>80%). He concludes today’s brief post, “[L]et's hope that the ACCME and AMA take note, both of which still strongly support industry-funded CME.” However, a closer look at the survey results may be more heartening than distressing to anyone who chooses to defend industry-supported CME. My take on the survey results from the MeetingsNet publication follows, with a somewhat more nuanced interpretation of the findings than Dr. Carlat may otherwise provide on the subject.

 

With respect to observed commercial bias in certified CME activities (below), while it is true that 82% responded that they observed some degree of commercial bias in certified CME activities—meaning something more than “never”—more than half (56%) of respondents indicated that they rarely or never observed commercial bias. I found the general lack of frequently observed bias in CME remarkable, especially given the general groundswell of anti-pharma sentiment that has developed during the last several years. The breakdown of results by sex and age group was not particularly revealing, and statistically significant differences for these data (and others) were not reported (if ever assessed).

 

Observed Commercial Bias in Certified CME Activities

 

 
Observed Bias.png
 

 

 

 

 

 

 

 

 

 

 

 

Among those who detected bias, disclosures regarding funding by industry or faculty relationships were, not surprisingly, cited as frequently or occasionally contributing to CME bias (below); however, I’m not sure what other factors would contribute to perceived bias in industry-funded CME activities. Consequently, I’m also surprised by the “rare” and “never” responses.

 

Source of Bias in Certified CME Activities

 

Bias Source.png
 

 

 

 

 

 

 

 

 

 

Yet, despite those physicians who indicated the presence of CME bias, more than 90% of all respondents indicated that CME activities were either somewhat or extremely effective, and no one indicated that these activities were “not at all” effective. Other curious findings from the survey include a strong physician preference (41%) for the meeting format—perhaps not surprising given the fact that MeetingsNet is in the business of promoting the meetings industry. A popular choice among physicians was “local meetings”; however, it is not specified if this choice refers to something like an institution’s weekly grand rounds session or an off-site industry-funded dinner meeting or both. Another not-so-surprising finding from the survey is the physician preference for the lecture format with question-and-answer sessions (a format that, of course, fits hand in glove with on-site meetings).

 

Among those surveyed physicians who received CME credit through online programs (only 11%), less than half provided information regarding the type of online CME in which they participated. However, among those respondents (the absolute number of which is not provided), 64% (or really 3% of all survey respondents) indicated a preference for Internet point-of-care (online self-directed) learning. The intention to use POC learning by respondents is also featured in the MeetingsNet report; 46% of physicians (I’m not sure if this is 46% of all respondents or only those 11% who participate in online CME) indicated that they plan to use the method during the next year. In any event, the manner in which the interest in POC learning is presented by MeetingsNet appears to bolster the current and perhaps future interest in POC learning among physicians. Consequently, I wonder if there’s not a reason for the seemingly pumped-up manner in which these data are presented by MeetingsNet. (In other words, is MeetingsNet also in the business of promoting Internet POC programs?)

 

Further survey data (including all-important absolute numbers) are likely to be obtained by shelling out several hundred dollars for the full report from MeetingsNet (which I will not be purchasing). So if there is additional, relevant information from the survey to consider, please provide them.

 

Somewhere between not caring enough to watch the Super Bowl ex-el-one-one and not finding the energy to pop in a DVD lies my extended viewing of “Celebrity Rehab.” A mini-marathon of VH1’s new reality show was available yesterday evening, and I watched several hours of the program like the combination TV addict and celebuwreck enabler that I am.

 

According to the VH1 web site, the show is “supervised” by Drew Pinsky, MD,* a board-certified internist and addiction medicine specialist (and as one episode reveals, a guy with very well-developed biceps), who prescribes on-camera addiction therapy for nine residents of a Pasadena rehab facility. The distinction of these residents is that they were formerly or are currently marginally engaged in the business of show. Four I had actually heard of, including actor Jeff Conaway (Grease, “Taxi”), actor Daniel Baldwin (“Homocide: Life on the Street,” “Celebrity Fit Club”), former professional wrestler Chyna (“Surreal Life”), and an ex-wife of Sylvestor Stallone, Brigitte Nielson (Rocky IV, “Surreal Life,” and “Strange Love”). Three of these (Baldwin, Chyna, and Nielson), and at least one other contestant resident, Jessica Sierra (“American Idol”), seem to be earning their present keep from reality-show appearances. (Generally, the length of the celebrities’ bios at the VH1 web site appears to correlate inversely with the quality of their contributions to the entertainment industry.)

 

The show itself, which incorporates what is now the traditional filming style of reality TV (including the creepy, white-eye, night-vision shots) is engaging and, yes (oh, the irony), addictive. A non-exploitative tone is set by Pinsky, who appears to genuinely care about his patients’ recovery and avoids coming across as just another celebrity-enamored physician. Thanks to Pinsky, you could actually get sucked into the idea that the program provides a realistic view of substance-abuse rehabilitation, until you remember the cameras.

 

And the cameras are the big objection to the show and to Pinsky’s therapy, which seems likely to fail as long as dramatic fucked-up-ness gets camera attention above and beyond sober, chain-smoking behavior. Celebrities, being first-class cravers of attention, would seem particularly vulnerable to the pull of the camera at the expense of their own substance-abuse recovery. And the more marginal the celebrity, the more desperate the craving. Case in point is the performance of Jeff Conaway, who comes off like a big, saggy, largely incoherent infant in a wheelchair. You can’t help but wonder if Conaway’s pained, over-the-top helplessness would be just a little subtler if he knew he wasn’t being filmed. Indeed, a glimpse of the actor’s tendency to chronically pander to the camera is inadvertently revealed when Conaway, momentarily out of rehab character, jumps up in a fit of pique from his group-therapy chair, after Baldwin accuses him of bringing drugs into the facility. Ambulatory recoveries like that are rarely seen outside of televangelist performances.

 

But at least in Conaway's case, it does appear that he, in fact, has an active substance-abuse problem (namely alcohol and prescription opiates). In the case of other celebrities, it’s not entirely clear why they’re even in the facility. After watching several episodes, I still don’t know what Chyna’s hooked on other than the camera lens. And Baldwin indicated that he’d been clean for 9 months before the show. So he wasn’t even de-toxing; he was evidently just there to share his cautionary tale with the rest of the world. What a guy. This gesture can be classified under the don’t-do-me-any-favors heading, especially when Baldwin poses in eye-rolling fashion as the wise and seasoned rehabber to the younger first-time residents.

 

Nevertheless, you think something from Baldwin’s prevous stints in recovery might have sunk in, when he begins to question Pinsky about the health of filming such an exercise. Baldwin ultimately decides to bow out of the program, after objecting to an impromptu wet T-shirt contest in the facility’s pool (thankfully, Conaway was not a contestant). But just when you’re perhaps ready to give Baldwin some minor ethical props, it’s suggested in a promo teaser that he may have scrambled home to his pregnant wife for reasons that involve a fellow rehabber, who also happens to be a porn starlet.

 

Thursday’s episode is promised to provide additional details. And sadly, I’ll probably be watching—that is, if a family member doesn’t successfully flush my remote down the toilet.

 

*Pinsky may be best known for his longtime cohosting of the radio and MTV relationship-advice show “Loveline.”

† It’s cruel to say (write) it, but I will: Conaway was never that good of a dramatic actor.

Why I Won't Be Eating a Hot Dog Today

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An early release of the MMWR provides additional information regarding the CDC’s investigation into cases of progressive inflammatory neuropathy (what the CDC is now abbreviating “PIN”) in pig-slaughterhouse workers in Minnesota and Indiana. The association between the development of PIN and “blowing brains” at the “head table” is confirmed, with an explicit description of employment that can otherwise be found in the Journal of You Think Your Job Sucks?

 

A compressed air device…was placed into the skull of the pig through the foramen magnum, and the force of the air disrupted the brain material into a liquefied form that made it easier to remove…This technique caused generation of small droplets and splatter, possibly including aerosolized brain material, to which workers operating the device and others nearby might have been exposed.

 

It is currently speculated that exposure to aerosolized neural protein from the pig may have induced an autoimmune inflammatory response in workers, resulting in the condition. According to the MMWR, blood and throat-swab samples to date have not identified any associated infectious agents (eg, Campylobacter), as was previously suggested at the Pathophilia blog.

Once again, pharmaceutical companies demonstrate world-class stupidity when it comes to averting negative PR. The latest example comes in the form of retired teacher and sufferer of Parkinson’s disease, Suzanne Davenport, whose story was reported yesterday by Sarah Rubenstein of the Wall Street Journal (and also at the WSJ’s Health Blog). Ms. Davenport and her family are currently seeking compensation from Titan Pharmaceuticals and Bayer HealthCare Pharmaceuticals, codevelopers of Spheramine* brain implants, which Ms. Davenport received in January 2005 as part of an investigational phase 2 clinical study.

 

Following the procedure, Ms. Davenport experienced a precipitous, unexpected decline in her clinical status, which has since required premature, continued skilled nursing care. In the WSJ article, both Ms. Davenport’s former neurologist, UCLA Spheramine-study investigator Jeff Bronstein, MD, PhD, and her current Seattle neurologist, John W. Roberts, MD, concur that the Spheramine implantation likely led to her demise. Yet, despite these expert opinions, and statements indicating monetary compensation for study-related injury in Ms. Davenport’s signed UCLA study-consent form, her family has encountered seemingly dilatory tactics from the pharma companies, including possibly disingenuous concerns that Ms. Davenport’s eligibility for Medicaid would be compromised should she receive any compensation (for details, see links to pdf files of letters at the WSJ site).

 

And now in predictable fashion, Ms. Davenport’s family has retained the services of an attorney, Stephen R. Pappas, and are suing Titan, Bayer HealthCare, and the regents of the University of California, for more than $5 million. Thanks to their own colossal ignorance, these companies are in the position of paying more money than they ever would have, if they had provided timely compensation to Ms. Davenport. And the thick icing on their own craptastic cake is 1) the reluctance of academicians and patients to participate further in their clinical trials and 2) negative coverage from a major national newspaper.

 

*Spheramine consists of levodopa-producing human retinal pigment epithelial cells attached to gelatin microcarriers, which are stereotactically implanted into the brain (the postcommissural putamen to be exact). The intention is that the continuous delivery of levodopa to the striatal pathway of the brain will better approximate the physiologic restoration of levodopa in PD than standard, oral levodopa therapy for the disease.

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