SACRAMENTO BEE
By Marjie Lundstrom
Published: Sunday, Jul. 22, 2012 -
12:00 am | Page 1A
Last Modified: Wednesday, Jul. 25,
2012 - 6:57 am
A prominent UC Davis neurosurgeon was banned from
performing medical research on humans after he and an underling were accused of
experimenting on dying brain cancer patients without university permission, The
Bee has learned.
Dr. J. Paul Muizelaar, who earns
more than $800,000 a year as chairman of the department of neurological
surgery, was ordered last fall to "immediately cease and desist" from
any research involving human subjects, according to documents obtained by The
Bee.
Also banned was the colleague, Dr.
Rudolph J. Schrot, an assistant professor and neurosurgeon who has worked under
Muizelaar the past 13 years.
The university has admitted to the
federal government that the surgeons' actions amounted to "serious and
continuing noncompliance" with federal regulations.
Documents show the surgeons got the
consent of three terminally ill patients with malignant brain tumors to introduce bacteria
into their open head wounds, under the theory that postoperative infections
might prolong their lives. Two of the patients developed sepsis and died, the
university later determined.
The actions – described by two
prominent bioethicists as "astonishing," and a "major
penalty" for the school – threaten both the doctors' professional careers
and the university's reputation and federal-funding status.
"This is really
distressing" said Patricia Backlar, an Oregon bioethicist who served on
former President Bill Clinton's national bioethics advisory commission.
"UC Davis is a very respectable
school, but even the best places have trouble," Backlar said. " …
These men have put that school in jeopardy."
Research on both humans and animals
is tightly controlled in the United States and, according to federal
regulations and university policy, must undergo a rigorous approval process to
ensure that subjects are protected.
Alleged violations involving
experimental drugs or devices can trigger a "for-cause audit" by the U.S. Food and Drug
Administration. Among possible enforcement actions, the agency can
issue warning letters – and publicize them – or disqualify researchers from
further clinical studies.The FDA has not notified UC Davis what, if any, action
might be taken.
The National Institutes of
Health also plays a role in protecting human subjects by potentially
withholding coveted research money from individuals or institutions. Among
medical schools, UC Davis ranks 36th in the nation in NIH funding for medical
research at more than $130 million in 2011.
Muizelaar, 65, who has been a
department chairman at the School of Medicine since 1997, told The Bee last
week that he and Schrot believed the FDA gave its permission early on, if the
doctors thought the treatment was "beneficial to the patients." He
described the research ban as an "overreaction" by the university.
"And I understand it," he
said. "There are people who blatantly break the rules that endanger all of
their research programs. We certainly didn't blatantly trample any rules."
Schrot, 44, who was hired by
Muizelaar, told The Bee in an email that "the determination of 'serious
and repeated noncompliance' is misleading."
Despite the disciplinary action
imposed last fall, Muizelaar was honored this spring with an additional
academic role at UC Davis. He was named the first holder of the Julian R.
Youmans endowed chair in the department of neurological surgery, according to
an April 19 news release from the UCD School of Medicine.
He told The Bee that he plans to
funnel endowment dollars into further research on the procedure that led to the
ban.
"If I come down with a
glioblastoma, I will demand that it be done on myself," Muizelaar said.
Protect
funding
The divergent views illustrate the
tension that exists at research institutions between protecting human subjects
and developing cutting-edge cures.
After an inquiry from The Bee, the
university agreed to release a full accounting of the internal probe into the
doctors' conduct.
UC Davis officials emphasized that
they moved swiftly last year after learning more about the doctors' unusual
work, launching an internal investigation that lasted six months.
In October, documents show, the university's
vice chancellor for research notified the FDA of "serious and continuing
noncompliance" by the two surgeons.
The eight-page letter from Harris A.
Lewin, along with 195 pages of exhibits, claimed that Muizelaar and Schrot
sidestepped procedures in their quest to introduce bacteria into live patients'
head wounds.
"We really take these matters
very seriously," Lewin told The Bee. "That's why we
self-reported" to the FDA.
An FDA spokeswoman said she could
not comment on the UC Davis case, or whether it would trigger a federal audit.
"We pursued this very
aggressively and very vigilantly to ensure that we were complying with all
regulations, so that we can continue to put protection of human subjects as
paramount," Lewin said.
"You can understand why. Because
if you don't do so, all your funding for federal research can be in
jeopardy."
Nationally, public and private
universities have paid a steep price for violating federal regulations
governing the treatment of human research subjects.
In 1999, for instance, Duke University was temporarily cut
off from all federal research money – a calamitous penalty for any institution
– after the government uncovered numerous ethical and safety violations.
All told, federal regulators
monitoring research with human subjects suspended activities at seven
university medical centers and one veterans hospital between 1998 and early
2000.
The UC Davis investigation, and the
resulting research ban, are ill-timed for campus officials, who have announced
ambitious plans to attract millions more in research funding. Chancellor Linda
P.B. Katehi has publicly declared that she aims to see UC Davis, which includes
the School of Medicine, become one of the nation's top-five public research
universities.
Lewin, the vice chancellor for
research since March 2011, said that physicians at UC Davis "have a lot of
leeway" in treating patients – but not when it comes to using them in
research.
Federal regulations require that any
research involving human subjects be reviewed and monitored by an institutional
review board, or IRB.
UC Davis has three IRB committees
charged with protecting the rights and welfare of humans involved in research
studies. The campuswide committees, which include members from the general
public, have the authority to approve, modify or reject all research activities
that fall within their jurisdictions.
The IRBs are a formidable presence
in any campus or research setting. Its members must ensure that research
involving humans complies with all federal regulations and university policies,
and that subjects are adequately protected.
Dr. John Anderson, a UC Davis trauma
surgeon who heads one of the committees that halted Muizelaar's and Schrot's
research, called the situation unusual.
The
treatment
The controversy involving Muizelaar
and Schrot erupted over a project known as "Probiotic Intracranial Therapy
for Malignant Glioma."
According to Lewin's Oct. 17, 2011,
letter to the FDA, the surgeons were intrigued by clinical trials showing
promising but unproven results in patients suffering from glioblastoma, the
most common and most deadly type of malignant brain tumor.
For these patients, median survival
is only about 15 months from diagnosis, according to the National Cancer
Institute.
However, Muizelaar and Schrot were aware
of medical literature that "seems to suggest" that patients who had
postoperative infections lived longer, Lewin's letter states.
Muizelaar told The Bee that he
"inherited" two glioblastoma patients who'd had unintended infections
who went on to live 15 and even 20 years with the deadly disease.
"We believed that this was
innovative treatment, not research, and that IRB approval was not needed,"
Schrot said in an email.
In 2008, the doctors proposed
treating a glioblastoma patient with bacteria applied to an open wound to
"attack the tumor," then later withholding antibiotics and letting
the bacteria do its work.
Schrot contacted the FDA but
ultimately was cautioned that animal studies were needed first.
Back at UC Davis, IRB chairman
Anderson, the trauma surgeon, was also skeptical. Anderson told Schrot in an
email that denying this patient the treatment would be "likely devastating
to this family," but that he believed the FDA and UC Davis "won't
allow this product to be used in humans without further testing," internal
documents reveal.
Despite the initial roadblock,
Muizelaar and Schrot "strongly believed that the intervention with
intentional wound infection was promising for patients who otherwise faced
certain death," according to Lewin's letter.
And so the doctors continued with
preclinical work, arranging for a rat study.
In 2010 events triggered the
university's internal investigation.
Between October 2010 and March 2011,
the physicians went forward with three procedures on humans with malignant brain tumors, surgically introducing
probiotics into their open head wounds.
Most consumers know probiotics as
the so-called "good" bacteria that live in the digestive tract. In
recent years, probiotics have been marketed as remedies for stomach distress
and even the common cold, and packaged in yogurt and dietary supplements.
Both doctors theorized that
infection stimulates the body's immune system to help attack cancer.
The first surgery resulted from an
encounter Muizelaar had with a patient suffering from recurrent glioblastoma in
the brainstem. The patient "had been generally aware" of the unusual
treatment option with bacteria "wound infection" and specifically
requested it, according to Lewin's letter.
At Muizelaar's direction, the letter
states, Schrot got IRB permission to move forward on Patient No. 1 with a
"one-time procedure" that was "not associated with any research
aim," the letter states.
University documents show that the
physicians believed they had been given the go-ahead for all three surgeries,
but officials later determined that they had been misinformed or were
misunderstood by the doctors.
Muizelaar and Schrot stressed to The
Bee that all three patients, in consultation with their families, gave their
consent.
The patients' outcomes varied
dramatically. The documents reveal:
• Patient No. 1 died six weeks later
after the tumor progressed. The university later determined that the patient
also had developed sepsis, a life-threatening illness in which the body
responds severely to bacteria or germs.
• Patient No. 2, who also underwent
the procedure in 2010, was still alive when Lewin wrote his October 2011 report
to the FDA. The patient was described as having a reduction in the brain tumor but also suffered a wound
infection and was given antibiotics 10 months after being intentionally
infected. Muizelaar noted last week that the patient has since died.
• Patient No. 3, who underwent
surgery in 2011, soon developed sepsis and meningitis and died.
The same day that Patient No. 3
"suddenly and precipitously deteriorated," the IRB director
discovered that Muizelaar and Schrot were seeking permission from an ethics
committee to infect five more patients.
The university threw on the brakes.
On March 17, 2011, the IRB director
ordered the doctors to immediately stop their probiotic treatments, according
to university documents.
The
investigation
The internal investigation began.
Six months later, the university
concluded its probe – ordering the doctors to halt all human research activity
"except as necessary to protect the safety and welfare of research
participants."
In the case of Patient No. 1, the
investigation found, Schrot had made an "incorrect statement" about
restrictions on the bacteria's use, leading IRB staff to incorrectly conclude
that such review was not necessary, Lewin told the FDA.
As for Patients 2 and 3, the
university found that treating them with an "unapproved biologic"
amounted to human-subjects research – and thus required prior review and
approval.
"Drs. Muizelaar and Schrot have
emphasized that at all times they believed they were acting in the best
interests of their patients, and that they never intended to violate any
rules," Lewin wrote to the FDA.
The research ban has potentially
serious consequences for both the university and the surgeons.
"To be banned from clinical
research makes a career in academic medicine challenging, to say the
least," Schrot told The Bee. He said he plans to ask the IRB "to
identify a pathway to regain my research privileges."
A renowned U.S. bioethicist,
describing the alleged violations as "a major penalty," said the
university's IRB was right to intervene – and quickly.
Arthur Caplan, director of medical
ethics at New York University's Langone Medical Center, said that desperate
people are especially vulnerable and need added protections.
"If you're dying, you're kind
of like reaching out to anything that anybody throws in front of you,"
said Caplan, who recently left the University of Pennsylvania's Center for
Bioethics to assume the New York post.
"That's why so many people over
the years are pursuing quack cures in Mexico and all kinds of questionable
treatments," he said, speaking in general terms. "They're not able to
think straight because they're at death's door."
Caplan said that institutional
review boards are often misunderstood, with many people believing that such
strenuous oversight is "a lot of bureaucracy to get in the way of trying
something to save lives."
In reality, he said, the committees
are an essential safeguard for research subjects, who may not get an unbiased
view on a researcher's consent form of the study's risks vs. benefits. Or, he
said, subjects may be unaware of the financial interests a doctor or researcher
might have in an experiment – an aspect thoroughly vetted by an IRB.
Besides ordering Muizelaar and
Schrot to stop using the bacteria in procedures, the IRB ordered both doctors
to stop enrolling new subjects in any research in which they serve as principal
or co-principal investigators.
Additionally, the case was referred
to three other campus units for investigation into other potential violations,
including the faculty code of conduct.
Those reviews are under way, said
Bonnie Hyatt, spokeswoman for the UC Davis Health System.
In its six-month investigation, the
IRB also looked at its own culpability and that of campus administrators.
According to Lewin's letter, the IRB acknowledged that "certain systemic
issues may have contributed to the errors made and has worked closely with UCD
Medical Center leadership to develop a series of improvements intended to avoid
any future recurrence."
Schrot responded to the IRB
leadership last September, lamenting that "a serious miscommunication
occurred."
"When we administered this
treatment, I believed it was appropriate innovative treatment which carried the
hope of battling this deadly disease," Schrot wrote to The Bee. "I
wished to do everything in my power to try to help these patients."
Schrot said he now realizes that
federal regulations are complex, and that "all the appropriate regulatory
processes were not followed."
Muizelaar told The Bee he and Schrot
had no financial incentive or underlying motive for the research.
"This treatment – we did it
purely to save some patients," he said. "This is not something we can
take a patent on. … We won't get a dime for it."
Muizelaar, who was honored this spring
at an endowment ceremony for his appointment to the Julian R. Youmans endowed
chair in neurological surgery, was commended in the news release for his
"research interests" and "top-cited papers" in medical
journals.
Spokeswoman Hyatt said the donor
specified that the chair be filled by the department head.
Muizelaar told The Bee he wants to
commit endowment funds to more wound-infection research. Hyatt said that
endowed chairs must get approval from university top leadership for their
spending recommendations.
Muizelaar remains neurological
surgery department chairman.
This e-mail address is being protected from spam bots, you need JavaScript enabled to view it
© Copyright The Sacramento Bee. All
rights reserved.