UPDATE 7/23. Added a summary: Two UC Davis neurosurgeons were treating terminally ill brain cancer patients with an unapproved, experimental treatment that is referred to as "Probiotic Intracranial Therapy for Malignant Glioma". The treatment involved purposefully infecting patients brains with a bacterium Enterobacter aerogenes apparently because of prior anecdotes and case reports that suggested that patients with these brain cancers who also had brain infections might live longer than those with the cancer but without the infection. According to the article, there was an investigation at UC Davis into the practices of the surgeons. It was determined by UC Davis that they did not have IRB approval to carry out the treatments and that there were some other issues with the practice going on. At the conclusion of the investigation UC Davis wrote a letter to the FDA detailing the case and has banned the two neurosurgeons from performing medical research on humans. Read the article for much more detail and see the link below.
Many interconnected issues in here involving IRB approval, human experimental treatments and informed consent, UC Davis, and even "probiotics". Still taking it all in ... Uggh ...
Other stories posted in the SacBee at the same time:
- Banned UCD doctor is one of UC's highest paid employees
- Other cases
- Confidential letter: UCD outlines doctor's 'serious' offenses (.pdf)
- Surgeon fights UCD with a federal suit - Fighting suspension, he ...
- Northern California Hospital Blog
- Sacramento Bee, The : Board seeking more clout over guest...
- Sacramento Bee, The : Surgeon fights UCD with a federal...
- UC's payroll in 2009 shows spending hike - UC Merced -...
- Top 10 earners list - Compensation at the University of California
- Muizelaar to hold first Julian R. Youmans ... - UC Davis Health System
- Youmans furthers his leadership in neurological surgery | Davis ...
- Best Doctors - Sacramento Magazine - December 2011 ...
UPDATE 7/22/12. Some tidbits to consider
- The doctors used the bacterium Enterobacter aerogenes for the treatment. It wear obtained from ATCC and grown by a graduate student at UC Davis.
- The use of the bacterium for human treatments violated the ATCC MTA.
- It is unclear from the details here why this bacterial strain/species was selected. But I assume it is related to the referenced Neurosurgery article (see more below).
- The hypothesis that purposefully causing an infection may help glioblastoma patients seems to come from the observation that patients with glioblastoma w/ postoperative infections have better survival than those who do not get infections. This could be due to many many factors jumping to purposefully causing infections with E. aerogenes seems a big big jump.
- It would be nice to know more about the statement "Early this year, as required by University policy Drs. Muizelaar and Schrot submitted a Record of ~Invention for the bacterial intervention to UCD's technology transfer office." in the letter from UCD to the FDA. Was this just a formality or were the surgeons looking to patent/protect the bacterial treatment method?
- The Neurosurgery article discussing infection and glioblastoma may be "Long-term Remission of Malignant Brain Tumors after Intracranial Infection: A Report of Four Cases" Neurosurgery: March 1999 - Volume 44 - Issue 3 - pp 636-642. This reported that some of the patients with infections that seemed to have a longer survival with glioblastoma were infected with E. aerogenes.
- "In three of the cases described above, Enterobacter aerogenes was recovered from microbial cultures. Whether the presence of Enterobacter aerogenes was coincidental or whether this organism plays an important role in tumor defense is not known and cannot be proven from the cases reported. "
- See also
- I wonder WHICH E. aerogenes strain they used.
- For more detail on Enterobacter see http://www.ic.ucsc.edu/~saltikov/bio119l/readings/prokaryotes/Enterobacter.pdf
- There is almost certainly an enormous amount of genetic diversity among E. aerogenes. To just order a strain from ATCC and use it because the same species was found to infect some glioblastoma patients seems ... well ... hard to justify (though I do not have all the information here).
- Lots of versions of E. aerogenes available at ATCC.
UPDATE 3 - some papers on bacterial infections and glioblastoma and other cancers
- Full text | Bacteria in cancer therapy: a novel experimental strategy
- Intratumoral injection of lipopolysaccharide causes regression of subcutaneously implanted mouse glioblastoma multiform
- Effect of postoperative wound infection on the course of stage II melanoma
- Analysis of the antitumoral mechanisms of lipopolysaccharide against glioblastoma multiform
- Microorganisms as antineoplastic agents in CNS tumors
UPDATE 4: Some other news stories (not sure how many are independent)
- 2 UC Davis surgeons banned from human research SF Chron
- UC-Davis Bans 2 Surgeons From Human Research Over Unusual Brain Treatment Chronicle for Higher Education
- KTVU San Francisco KTVU
- Science 2.0 blog post: Neurological Surgery Professor Paul Muizelaar Banned For Illegal Experiments
UPDATE 5: 7/23 12:33 AM
- Biocrime or a Passion to Save a Life?. This pointed me to the article below:
- A key article of interest: Post-operative infection may influence survival in patients with glioblastoma: simply a myth?: Glioblastoma, infection and survival from 2011. The article casts some doubt on the basis for the treatment used here
- Citation: De Bonis P, M D AA, M D GL, de Waure C, Mangiola A, Pettorini BL, Pompucci A, Balducci M, Fiorentino A, Lauriola L, Anile C, Maira G. 2011. Post-operative infection may influence survival in patients with glioblastoma: simply a myth?: Glioblastoma, infection and survival. Neurosurgery. 2011 Oct;69(4):864-8; discussion 868-9.
- "One of the myths that continues to be perpetrated in neurosurgery relates to the observation that a postoperative infection may actually confer a survival advantage in patients with malignant glial tumors"
- The take-home message of this study, which can be applied to any aspect of neurosurgery, is to do everything possible to prevent a postoperative wound or cavity infection. The association between infection and prolonged survival is not definitive; we acknowledge the considerable difficulties in undertaking this type of study in a retrospective manner in view of the numerous clinical variables. A prospective randomized study on this subject is clearly not possible. Nevertheless, we believe the results of this study are important and can be used as a stimulus for further multicentric studies (to increase the number of patients) or for experimental studies using genetically modified bacteria for the treatment of GBM.
- Also see The survival impact of postoperative infection in patients with glioblastoma multiform from 2009.
- "In this single-center study, postoperative infection did not confer any survival advantage in patients with glioblastoma multiforme".
- Available free online here.
- "This study did not show a causal relationship between postoperative infection and prolonged survival in patients with GBM. Although targeted immunotherapy may provide antitumoral effects, simple infection does not appear to do so. Modern aseptic and antiseptic surgical techniques continue to be integral to the care of patients with gliomas."
- Also see Cancer J. 2012 Jan-Feb;18(1):59-68. Immunotherapy for the treatment of glioblastoma. Thomas AA, Ernstoff MS, Fadul CE. (though I cannot seem to be able to get a copy ..)
- Human Research Protection (IRB) — Office of Research
- (IRB) Administration - Office of Research - University of California ...
- Central IRB Review - Office of Research - University of California ...
- IRB FAQs - Office of Research - University of California, Davis
- Research at UC Davis Health System
- Institutional Review Board Administration — Office of Research
- Welcome to Neurological Surgery - UC Davis Health System
UPDATE 6: 7/23 3: 45 PM Some news stories/blog posts
- Neurosurgeons banned from human research for giving infectious bacteria to ... (from io9)
- J. Paul Muizelaar, Rudolph Schrot, University Of California Davis ... Huff Post
- 2 neurosurgeons banned from human research after allegedly experimenting on people without permission BMCDB Blog from UC Davis Grad students
- Nature News Blog: Neurosurgeons barred from human research after experimental infections
- 2 UC Davis Surgeons Banned from Research on Humans | KQED ...
- Santa Rosa Press Democrat AP story
- A pair of neurosurgeons banned from human research after 'they illegally ... Daily Mail
UPDATE 7: 7/24 Some news stories/blog posts
- Two Neurosurgeons Banned from Human Research After Inserting ... Medical Daily
- VIDEO: UC Davis Surgeons' Experimental Brain Operations Led to ... Newsy Video
- UC Davis Doctors Punished For Unauthorized Human Experiments The Inquisitr
- UC Davis Punishes Professors for Unethical Medical Experiments - First Things Blog
- Research At Your Peril -residency notes blog
UPDATE 8: Some more stories
- New Scientist story
- UC Davis chancellor orders review of university doctors' actions
- Extensive discussion at metafilter: http://www.metafilter.com/118227/UCDavis-doctors-banned-from-research
UPDATE 9: SacBee Editorial calling for Muizelear to step down as Chair
- The Sac Bee has an editorial today calling for the doctor involved in this issue to step down as chair of the Neurosurgery department. Some quotes below
- "Experimentation on terminal patients requires a specific set of protections for good reason. People who are, quite literally, on death's doorstep are extremely vulnerable, and therefore not always able to give informed consent."
- "University officials conceded that "systemic issues" within the medical center may have contributed to errors made and that "additional measures designed to avoid future confusion" have been put in place."
- "Curiously, even after it was imposed last fall, the university named Muizelaar to fill its new Julian R. Youmans endowed chair in neurological surgery. The donor specified, university officials explained, that the chair be filled with the head of the department, a fact that begs the question: Why is Muizelaar still chairman of the department?"
UPDATE 9: some new stories
- UC Davis Neurosurgeons Banned From Research After ...
- In the media: Week of July 22 | UC Health
- Experimental brain cancer treatment may have been illegal - Typepad
- 2 UC Davis Surgeons Banned From Conducting Human Research
UPDATE 10: Nature News Story
UPDATE 11: Muizelaar steps down as chair of department, at least temporarily
- UC Davis neurosurgeon department chair steps down pending ...
- "One advocate for ethical human subjects research questioned the university's decision to keep the matter in-house instead of seeking outside review. "The time is long gone for another internal investigation," said Elizabeth Woeckner, founder and director of Citizens for Responsible Care and Research, or CIRCARE. The nonprofit group works to improve protections for human subjects in research. Woeckner called the doctors' work on the patients – intentionally infecting them with bacteria restricted to use in lab rats only – as "the worst thing I've seen in my 12 years with CIRCARE.""
UPDATE 12 - September 7, 2012 - some new news stories on Federal investigations
- UC Davis brain cancer patients deaths trigger investigation SJ Mercury News
- UC Davis cancer care probed after 3 die - SF Chron
- Federal agency probes deaths of 3 UCD brain cancer patients - Sac Bee
- Feds initiate probe of UC Davis brain cancer cases- SF Chron
- Davis neurosurgeon at center of controversy provokes critics and ... SacBee
UPDATE 13: December 11, 2012 - Federal investigation at UC Davis, Resignation of UC Davis Dean of Medicine, more
- Some fun holiday reading about the UC Davis Medical Center neurosurgeon saga
- Federal regulators blast UC Davis Medical Center over experimental surgeries
- The Public Eye: Feds inspect UCD Medical Center in probe of ...
- UC Davis neurosurgeon takes leave amid scandal
- Possibly Illegal Experiments on Cancer Patients Lead to UC Davis ...
- UC Davis dean resigning amid controversy over experiments on ...
- Pomeroy To Step Down as UC-Davis Medical School Dean
- School of Medicine dean to step down in June
- Amid controversy, Claire Pomeroy to step down as UC Davis med ...
UPDATE 14: December 13, 2012
- Editorial: Did UCD ignore wayward docs because of $$?
- The UC Davis Medical Center Scandal - The Patient's Response
UPDATE 15: December 21, 2012
- NSFW Corp's Leigh Cowart has a post on the story: