Showing posts with label clinical trial ethics. Show all posts
Showing posts with label clinical trial ethics. Show all posts

Wednesday, March 2, 2011

Vulnerability and Informed Consent

I spent most of today discussing ethics in clinical trials at a conference produced by Leo Intelligence in San Diego with a fascinating group of people from IRBs, sponsor companies, and CROs.  It was a really good small meeting, and I hope they put it on again next year and give it a chance to grow.

In the morning we reviewed how the relentless drive for new, willing, and preferably treatment naive patients is pushing clinical research out to farther and farther away places, countries that may have weak, stressed or crumbling health care delivery systems that struggle to serve their citizens' basic medical needs.  We discussed some of  the major ethical policy issues of international clinical research, especially in developing countries, such as placebo controls, clinical trials as treatment or even marketing, and vulnerability and consent.  (The slide set for this talk can be found here.)  Some countries have legislated and developed and invested, such as India and Brazil (and other South American countries), many countries of the post-WWII east.  Some countries have grown a clinical research enterprise out of the opportunism of a health crisis, such as Russia and the Ukraine following the Chernobyl disaster.  Even in these countries we see challenges in obtaining truly informed, voluntarily given consent. Cultural differences can take the standard western idea of consent and stand it on its head.  

For example, the Belmont Report's first principal of respect for persons, usually defined as the autonomy of the individual, is considered a universal ethical truth, one which even the ethical relativists can accept as valid for all.  Except that in many non-Western cultures where the collective is valued above individual - where "the needs of the many outweigh the needs of the few, or the one" - the idea of a patient making a decision to participate in a clinical trial based on her self-interest quite stretches the imagination.  

Now consider this same patient, who has little experience making a decision that is not at least informed by or simply made outright for her by another member of her family, and add to that the fact that she cannot read; not her own language and certainly not English.  Then add finally the factor that her physician is an even more powerful figure in her life than her husband or father, and whatever he (or she) says has the weight of the voice of God himself.  Now the idea of slapping a 19 page consent form in front of that patient, getting her signature or mark, and going to sleep at night believing that we have met our obligation to obtain true, voluntary informed consent to participate in a study is truly laughable.

And yet that's what we do.  

And this is not all.  This afternoon's keynote speaker was Andy Mikulak, of Max's Ring of Fire, who gave a patient's perspective of participating in clinical trials.  Andy is not a researcher, or IRB member.  He is a father, and his son Max taught Andy much about participating in clinical trials - right up until the time he died of neuroblastoma at age 7.  Since Max's death Andy has coped with his grief by becoming a patient advocate and raising money and awareness for pediatric cancer research.  Check out the website and click on a couple of videos.  Your eyes will not stay dry.  

Andy gave a short talk intended to explain to us why patients go into clinical trials, and what we could do to make the experience better and more useful for patients.  He said patients go into trials to live, to survive, and sometimes because they cannot get treatment for their serious disease any other way.  He suggested to researchers that if they meet their patients' needs, their own needs for data and results will be met.  He also admonished us for making informed consent forms too complicated.  He said that he and other patient families routinely seek out other patients for 'true' information' about trials, because the sponsor/IRB provided documents are written "to protect the institution first, and inform the patient second".  He said the language used in consents did not meet his needs or those of other patient families: the language was too obtuse and not intended to inform.  There is too much protectionist, defensive language.  And this is not a guy who cannot read beyond the 6th grade level; Andy had no problem discussing the preclinical data of various chemo agents his son was treated with, so the issue was not the level of the language, but that the language was not intended to inform.  

This got a big response from the IRB members in the room, whose nominal role is protect patients, yet some IRBs seem to be a driving force behind the ever-lengthening consents in recent decades.  When I have asked them why, the most prevalent reason seems to be: "we want to anticipate patient questions so in case they don't know what to ask, it's all there in the document."  Fair enough; many patients don't know what to ask or are too timid to ask.  But why then do we not train and then empower the investigator to provide information, to anticipate questions and prompt for them?  Have we completely abandoned the investigator's role in providing risks and other information to patients?  (For information about the learned intermediary and its rise and fall in the pharmaceutical world, as well as clues as to how we became so protectionist, see Perez v Wyeth Labs.) It seems that instead of using the consent form as the documentation of the consent conversation, and the basis for discussion, we are allowing the form to replace the process almost entirely.  

And in the end, studies show that many patients - western and non-western alike - do not understand that they are involved in a study, that they have right to withdraw, what the risks are and that they may receive treatment with a comparator (or placebo).  So clearly the answer isn't to be found by adding more pages to the consent form other than to make the institution's lawyers feel better.  

The plane is boarding.  Next post, some thoughts about where the low hanging fruit might be found; how we can minimize the mistakes that we make and better protect the patients we study.

Saturday, February 19, 2011

Upcoming Clinical Research Conferences & Events

In about 10 days I will be in San Diego for the first Ethics in Clinical Trials conference.  


Current deals (I think these are still good - call 720-212-0440):

·         4 for 3: Send 4 delegates for the price of 3
·         10% off: Mention booking code leoE11
·         Free Pre-Conference WorkshoppreE11  (Led by me, a discussion of emerging region clinical trial ethics) 


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Later in March I will be at Partnerships in Clinical Trials in Phoenix - March 30-April 1.  I am chairing a market insight round table discussion on Strategies for Indian Clinical Trials on Thursday Mar 31, at 11:00 AM.  Click here to register, or here for pricing.

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Finally, I will be in a panel discussion at MAGI's Clinical Research Conference in Philadelphia, May 22-25. 
I have attended and presented at the western edition of this conference a couple of years running; this will be the first time I travel east for MAGI. I am delighted to join again with Joan Chambers of CenterWatch, Nye Pelton of Eli Lilly and Marlene Llopiz of Venn Life Sciences to discuss the current state of globalization of clinical trials.

According to the conference organizers, two-thirds of attendees will have 5+ years of experience. About 48% of attendees will be from sites, 27% from sponsors, and 25% from CROs and other service providers.

The conference website is here.  A friend-of-speaker discount can save you $100 - code Q367.
Click here to register. Enter the above discount code when prompted. (Does not apply retroactively or to already-reduced group rates.)

Tuesday, January 25, 2011

Informed Consent May Be Compromised & Medical Device reform

In a study published today in IRB: Ethics and Human Research (free abstract, $ subscription for full article), concluded that unrealistic optimism is prevalent among some clinical study subjects  and that it "has the potential to compromise informed consent".  Seventy-two early phase cancer study subjects completed questionnaires designed to assess their level of understanding of the study's purpose as well as to detect signs of unrealistic optimism.  Unrealistic optimism is defined as "specific to a situation and consider (sic) a form of bias...and is distinct from "dispositional optimism, which is a general outlook on life and is neither realistic nor unrealistic".  Questions to reveal unrealistic optimism revolved around the likelihood of particular individual outcomes as compared with other study participants, or the participant's tendency to give greater weight to possible benefits than possible risks.  According to the study's findings, 72 percent of the subjects accurately understood the objectives of the cancer trial in terms of potential benefits to future cancer patients rather than directly to themselves, which means that 28% of respondents did not clearly separate those facts.  The researchers' concluded that we need to improve the informed consent process by "paying more attention to how patients apply the consent information to themselves".  Reporting on the trial is found online at Medical News Today.  


In other news, last week the FDA announced proposed changes to improve the agency's 510(k) program for approving medical devices for sale.  Some of the recommendations include:



  • consolidate the terms “indication for use” and “intended use” into a single term, “intended use”; 
  • expand its statutory authority to consider off-label use when determining the intended use of a device; 
  •  issue guidance on when a device should no longer be available for use as a  predicate;  
  •  issue a regulation on its rescission authority;  
  •  issue guidance to create a “Class IIb”; and  
  •  seek greater authorities to require postmarket surveillance studies as a condition of clearance for certain devices.
The full report is here (PDF).  FierceMedicalDevices reported generally favorable reception of this news by the industry.  We have a long way to go until any of the report's recommendations become regulation, but now at least we have some ideas of which way the agency's thinking is going.  At the same time, the Wall Street Journal carried an op-ed by President Obama discussing the balance between regulator and free market. It all makes for very interesting reading.

Sunday, October 3, 2010

Guatlemalan Syphilis Trials and the Nuremburg Code

The New York Times has a piece this week revealing that “from 1946 to 1948, American public health doctors deliberately infected nearly 700 Gautemalans – prison inmates, mental patients and soldiers – with venereal diseases in what was meant as an effort to test the effectiveness of penicillin.”

Susan M. Reverby is a professor at Wellesley College and a medical historian who has previously written two books on the Tuskegee syphilis trial, discovered records of these experiments in the archives of the University of Pittsburgh as she was preparing a research paper. The archives also revealed that NIH funds were used to pay syphilis-infected prostitutes to sleep with prisoners in order to infect them. If that method didn’t work, patients were infected by experimenters pouring live bacteria over abrasions on their scraped up body parts or injected directly into the spine.

The connection to Tuskegee is not accidental. The Guatemalan experiments were led by one John C. Cutler,  a public health service doctor who was to become instrumental in the Tuskegee experiments later on, and it was his unpublished Guatemala work that Reverby discovered at Pitt. Reverby told the Times that she had previously presented her findings at a conference last January but received no reaction. In June she submitted a manuscript for a future issue of the Journal of Policy History to Dr David J. Sencer , former director of the CDC (a body that has its own not completely benign role in the Tuskegee affair), and he requested a government investigation.

All of this was going on at the same time military and civilian lawyers at Nuremburg were mounting a vigorous prosecution of Nazi physicians in the Doctors’ Trial following WWII. From this prosecution came the Nuremburg Code from whose appearance many ethicists date the modern era of human subjects protection, a code which included such protections as voluntary consent, a favorable risk/benefit analysis, avoidance of needless suffering, appropriate prior animal data, the right to withdraw, and so on. US public health doctors were conducting VD trials on presumably unconsented (or at least not fully informed) subjects at the same time physicians were being hanged in Germany for doing the same things. The theme connecting these events is this: lack of respect for person, the unwillingness of the experimenters to see research subjects as full human beings deserving of protection and respect.

In the wake of these revelations, Secretary of State Clinton and HHS Secretary Sebelius have issued an apology to Guatemalans, the subjects and their descendents, and of course it is not their fault. We do not need to waste time looking for conspiracies in the US government. FDA regulations, the Common Rule, the Declaration of Helsinki and ICH and WHO-CIOMS guidelines for GCP are all designed to protect future human subjects. Our job is to make sure that we educate our successors so that things like this never happen again.

Monday, January 25, 2010

New Year, New Challenges


The new year has hit the ground running hard and many colleagues are just trying to hang on. The good news is that though we are still in the midst of some hard times, we are starting to see an upturn in movement of money, new clinical programs under development, and jobs. Enrollment is up in the UC Santa Cruz certificate programs where I have taught for the last 10 years and in honer of the winter term just getting underway, I posted a picture from my most recent trip to India of a woman walking her children to the school bus in Bangalore.

The conference season is in full swing. I just came back from the Indian Society for Clinical Research's excellent 3rd annual national conference at the Hotel Leela Kempinski in Bangalore. Attended by 500 participants from all over India and beyond, the conference featured many of the most influential people in the Indian clinical research field as well as many young CRAs and project managers, and it was a fantastic opportunity to listen and learn from the people who know the region best.

This week I will be attending and presenting at Outsourcing in Clinical Trials West Coast in San Francisco, on the topic of Offshoring to Emerging Countries: Navigating Uncertain Waters. I gave a similar talk last week as an advance for the Partnerships in Clinical Trials event to be held in Orlando in April. I'm told a podcast of last week's talk is forthcoming and I will make it available to anyone who contacts me for it. This week I am also presenting in a webinar entitled Biotech and the Global Marketplace for the US Commercial Service. My task is to discuss clinical trials in emerging markets and opportunities for US biotech companies to enter into co-development projects with sister companies in these regions.

My partner and I were recently featured in a blog post over at goBalto.com about the Indian clinical trial market- see it here.

I receive regular updates from Audrey Erbes, who is a faculty colleague of mine at UC Santa Cruz extension and teaches in the biosciences certificate program. I took her 2 day course on business development and highly recommend it. Here is her excellent blog where she freely shares huge amounts of information from her network including job postings with students and colleagues alike. Highly worth subscribing to in your reader.

2010 represents my 30th year in the clinical research field. Next year I will have to rename my blog to '3 Decades, Full Stop'.

Friday, May 29, 2009


At this time in late May the jacarandas are in full bloom in my neighborhood. I love the rich color of the blossoms and the painterly carpet of lavender they lay down underneath the tree. I suspect the owners of the trees don't love them so well as I do when they have to clean up.

As the spring term winds down there is also less news in clinical research and ethics related topics this week. I did note one rather old item from a blog called Reason Online that discussed a case from the 90s about a woman who submitted a blood sample to be tested for the gene BCRA1, mutations of which can indicate high risk of breast and other cancers. If found positive, this survivor of one episode of breast cancer already planned to have her remaining breast removed as a preventative measure, and the problem arose when the physicians refused to give her the results, claiming such knowledge could be 'dangerous if revealed at the wrong time'. The patient claimed that by giving her blood sample she had entered into a kind of contract with the physician, including the connotation that she wanted the answer no matter what it was, and he was obligated to provide the result.

It turns out the physician was not just being recalcitrant or merely paternalistic. At the time of this incident in 1996, several prestigious bioethics boards including the University of Southern California's Pacific Center for Health Policy and the Law, Medicine, and Ethics Program at the Boston University Schools of Medicine and Public Health recommended that the BCRA1 test only be used in a research setting and the results not be provided to patients, the idea being that if there is no known prevention for a disease, what does it benefit the patient to know that they are more likely to get it? Happily, in the end the women received her test result which turned out to be negative.

Prestigious or not, the Mayo Clinic begged to differ with regard to prevention, publishing in the New England Journal of Medicine that year that prophylactic mastectomy before the appearance of breast cancer was about 90% effective in reducing the risk in moderate to high risk women. And leaving aside for a moment the question of prevention, is it really a valid view in a society that values individual responsibility and autonomy to withhold important medical information from a patient is who otherwise able to make her own decisions? The blog post goes on to review the evolution of bioethics in this country, tracing through the Tuskegee syphilis study and discussing the ethics of in vitro fertilization and other aspects of reproductive medicine.

And finally we have a picture from a gathering of some of my students who have just completed my course on clinical trials in emerging markets, taken in my living room last weekend. Some of them were being a bit goofy. Chalk it up to spring time.