Big pharma inconsistent with disclosure of information on clinical trials, new study finds

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Despite legal and ethical requirements, information on clinical trials for drugs approved by the U.S. Food and Drug Administration (FDA) varied widely among some of the world's largest drug companies, according to a new study led by a researcher at NYU Langone Medical Center's Division of Medical Ethics in the Department of Population Health.

Although the lack of publicly available clinical trial information has been widely acknowledged as a decades' long problem, the researchers believe this is the first report that ranks specific drugs based on their sponsors' legally-required disclosure of clinical trial information and their ethical obligation to share information. The study, published online in BMJ Open also suggests that U.S. law is both narrow and unenforced in this area.

In the study, the authors debut a solution to help fix the transparency problem: the "Good Pharma Scorecard." The pilot rankings—which will be released annually—score the largest for drugs approved by the FDA in 2012. The authors' goal in releasing this scorecard is to incentivize pharmaceutical companies to strive toward greater transparency.

"Selectively disclosing trial information can distort the medical evidence and challenge the abilities of physicians, prescription guideline writers, payers, and formulary decision-makers to recommend and provide the right drugs for the right patients," said Jennifer Miller, PhD, an assistant professor of medical ethics in the Department of Population Health at NYU Langone, and President of Bioethics International. She led the study, along with researchers from Harvard and Yale Universities.

The findings were sobering. Almost half of all reviewed drugs had at least one undisclosed Phase II or III trial. In addition, the investigators found that only 57 percent of trials per were properly registered; only 20 percent of final results were reported on ClinicalTrials.gov (a clinical trial registry and database maintained by the National Library of Medicine at the NIH); only 56 percent were published in academic journals, and; only 65 percent were published or had their results reported in some meaningful way.

Dr. Miller also noted that selectively disclosing information violates the rights of laid out in the U.S. Common Rule, a rule of ethics that requires that human subject experiments have the potential to contribute to generalizable knowledge.

How the Study Was Conducted

The investigators examined publicly available information for all drugs approved by the FDA in 2012 that were sponsored by the 20 pharmaceutical companies with the highest market value. They identified 15 drugs from 10 companies with more than 318 associated clinical trials involving 99,599 research subjects.

Information was gathered from a variety of publicly available documents, including Drugs@FDA, a publicly accessible database containing records of drug approvals and medical and scientific reviews of approved drugs; ClinicalTrials.gov; and journals indexed in Medline.

To aid in their evaluation and reform strategy, the researchers created a "Good Pharma Scorecard," which consisted of five critical elements of transparency for new drugs, including if the trials were publicly registered, if they were reported in ClinicalTrials.gov after FDA approval and if there was adherence with ethics standards established by the World Medical Association's Declaration of Helsinki, the cornerstone document on human research ethics, among others.

Conducting transparency performance audits for hopefully will incentivize pharmaceutical companies to improve behaviors, give more publicity to best practices, and support the government's monitoring capabilities," Dr. Miller said. "The scorecard and rankings have the potential to benefit consumers by helping assure the integrity and completeness of clinical trial information. Full transparency of would also strengthen the protection of human research subjects by avoiding their unknowing recruitment into already failed experiments."

Dr. Miller and her team will publish this scorecard annually, ranking each new group of FDA approved drugs going forward. A ranking of 2015 approved drugs and their sponsors will be released in 2016.


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Citation: Big pharma inconsistent with disclosure of information on clinical trials, new study finds (2015, November 12) retrieved 22 February 2019 from https://medicalxpress.com/news/2015-11-big-pharma-inconsistent-disclosure-clinical.html
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