Bulletin of the World Health Organization

Giving patients better access to trial information

Patients and many other members of the public have much to gain from a global clinical trials registry initiative launched by WHO. On 19 May, WHO unveiled the rules under which pharmaceutical companies and others doing research must disclose 20 sets of data when they register clinical trials they are planning to do (see boxes on pp. 430–431).

All new medicines, as well as diagnostics and vaccines need to be tested in clinical trials with human participants for safety and efficacy.
WHO
All new medicines need to be tested in clinical trials with human participants for safety and efficacy.

Paul Gelsinger, vice president of Citizens for Responsible Care and Research CIRCARE), a US patients’ advocacy group, knows about the shortcomings of clinical trials. Seven years ago his son Jesse participated in a trial of a gene therapy treatment for ornithine transcarbamylase (OTC) deficiency — a condition which kills one in two newborns affected in the first month of life. Jesse, 18 years old at the time of the trial, wanted to give something back to the doctors who had helped him through his first difficult weeks of life. The doctors injected a normal OTC gene spliced with a virus into his liver. His liver hemorrhaged. On 17 September 1999 he died.

“It never occurred to me that the doctors might withhold information,” says Gelsinger, ho later learned that two monkeys had died in tests involving a gene delivery system like the one used on Jesse, and that four humans had suffered liver damage earlier in the same trial. Gelsinger is convinced that if the database set up by the National Institutes of Health (NIH) and Food and Drug Administration (FDA) had been working as it should, the University of Pennsylvania trial would have been shut down long before Jesse’s fatal participation.

It is partly to prevent such violations of patients’ rights, that WHO launched a global network of clinical trials registers last month — the first step to establishing a web-based search platform available to the general public.

A primary objective of the network, known as the International Clinical Trials Registry Platform, is increased transparency by requiring any company or institution conducting clinical trials to register the details of how these are going to be done.

Companies or other institutions doing clinical trials will be obliged to disclose 20 items that describe the trial’s protocol in the form of a standardized summary. Not everyone is happy about this obligation.

“There is a great deal of reluctance on the part of the pharmaceutical industry regarding full disclosure,” says Albert van der Zeijden, chair of the International Alliance of Patients’ Organizations in the Netherlands and a keen supporter of the WHO initiative. “But the industry is well aware of the negative image it has at present, and this gives us an opportunity to demand a high level of compliance,” said van der Zeijden, referring to recent cases of companies withholding negative research findings that sparked public outrage. Nikos Dedes, of the European AIDS Treatment Group, is similarly optimistic: “This is a unique opportunity,” he says, “and no other organization in the world matches WHO’s reputation and credibility.”

Indeed, there are reasons for optimism. Since September 2005, the International Committee of Medical Journal Editors (ICMJE), a body comprising editors from some of the world’s most influential journals, has refused to publish trials not entered on a trials register. Publication of the results of trials in these journals is an important step towards getting regulatory approval for new drugs and other products from the FDA. That said, few in the advocacy community, van der Zeijden included, believe that the drug companies will register all the trials they are planning — as they should under the WHO initiative — without the threat of some kind of sanctions.

“It helps that medical journals withhold results of anyone not registered, but that has more of an effect on academic players than pharmaceutical companies,” says Kathy Redmond, Editor of Cancer World based in Milan, Italy.

This is a view echoed by Karen Carey Hazell, Consumer Representative from the Consumers’ Health Forum in Australia, who believes that, over time, registration will have to be made compulsory. “Either that, or other regulatory and funding mechanisms will have to penalize manufacturers that do not register,” she says.

Medical and public health editors argue that the ability to publish results on clinical trials and, in future, secure FDA approval, provides some incentive for companies and other institutions to register ongoing any trials they are planning. “A degree of enforcement has been achieved by the requirement from the International Committee of Medical Journal Editors (ICMJE) for trials to be registered at inception if the results are to be considered for publication,” Fiona Godlee, Editor of the BMJ, wrote in a BMJ editorial in May.

WHO and its partners also hope that theirs is a formula for success. The WHO initiative aims to bring together participating registers of clinical trials around the world in one global network. This will provide a single point of access to the information stored in them and a web-based search platform where members of the public can obtain basic information about ongoing and completed clinical trials, including contact details for the study.

The goal is to increase transparency and accountability on the part of companies and institutions that do clinical research, and, in turn, boost public trust and confidence in that research. WHO experts say that even once the platform is up and running at the end of this year, it will be important to continue the discussion on how to improve the system.

“The debate on trials registration will no doubt continue for many years to come. But now is the time for progress and action while continuing to allow for robust debate and reasonable disgreements,” said Dr Tikki Pang, Director of WHO’s Research Policy and Cooperation department.

Whatever the difficulties involved in dragging the pharmaceutical companies to the registration table, few doubt the value of the exercise. Ironically, it is precisely the information drug companies are most sensitive about — the results of phase I and II trials — which patients facing regimen failures or resistance problems are most in need of.

“There are a huge number of novel targeted therapies in pre-clinical and early clinical trials,” says Jan Geissler, vice president of the European Cancer Patient Coalition, and a cancer survivor himself. “Patients with resistant cancers often seek out these trials on the net as their last and only chance.” Nor is this just a matter of blind desperation. Geissler cites a recent study showing that on average the response rate to phase I clinical trials in cancer patients is over 10%. “In my personal case,” Geissler adds, “I joined a phase I/II trial after I was diagnosed with a cancer which, five years later, 98% of patients are surviving. The standard treatment offered at the time would have given me a 40–60% chance of survival.”

It’s not everyone who can bounce back from a devastating diagnosis to go searching on the internet, and Geissler believes that such courage deserves better than it currently gets.

“The registers for ongoing clinical trials are frequently inaccurate, incomplete and out-of-date,” he says. Meg Gaines, who once faced “salvage chemotherapy” as her only hope to survive ovarian cancer, and who now runs the Center for Patient Partnerships in Wisconsin, is similarly dismayed by the state of available registries. “It’s very hard for people in these circumstances, dealing with the terror of a fatal diagnosis, to trawl through the different sites and struggle with the scientific jargon only to find that the trial that seems to offer hope is no longer active,” she says.

The internet is very good at bringing people and goods, or people and services together. Deborah Collyar, a two-times breast cancer survivor, now president of Patient Advocates in Research, believes that web services such as EmergingMed.com, have a great deal to offer. “You can put your profile into the system and the search engine seeks to match you with trials currently going forward,” she says. “It’s very simple and very effective.”

Such a system would certainly have helped the Italian man Kathy Redmond tells a story about. “He was a leukaemia patient who began to develop resistance to the drug Gleevec,” she says. “The prognosis was bad so he went on line and surfed his way into Clinicaltrials.gov, the registry run by the US National Library of Medicine.” It was there that he discovered that a trial looking at precisely the problem he was experiencing was taking place in Toronto.

“He got on the plane and flew to Canada. When he arrived in Toronto he was told by one of the research staff that an identical trial was going forward in his home town, Rome. Italy has no clinical trial register. The man had no way of knowing what was happening on his doorstep.”

If WHO’s plan to bring together the world’s clinical trials registries works, that brave traveller’s doorstep is about to get a little closer to home.

Gary Humphreys, Los Angeles


Box 1: No delayed disclosure for registration of clinical trials

In a major step towards making clinical trials more transparent and publicly accountable, WHO unveiled the disclosure rules for pharmaceutical companies and others when they register trials they are planning with human participants under the International Clinical Trials Registry Platform initiative.

WHO said on 19 May that there would be no delayed disclosure of any of the 20 key details that companies or other research institutions need to submit when they register clinical trials. WHO called on these research institutions to register all clinical trials prior to enrolment, regardless of the type of study, as participation for these institutions is voluntary.

WHO has already announced the 20-item data set (see box 2), which must be provided when a trial is registered under the initiative.

The decision on disclosure rules comes after two years of consultations, culminating in a 26 April meeting with representatives from the pharmaceutical, biotechnology and device industries; patient and consumer groups; governments; medical journal editors; ethics committees; and academia.

During those consultations some groups raised concerns that academic or commercial competitive advantage could be jeopardized by the immediate disclosure when a trial is registered of five of the 20 items: the name of the intervention(s) tested; the primary outcome; key secondary outcomes; the target sample size; and the scientific title for registered trials.

But in the end, WHO concluded that registration and immediate disclosure of registered data prior to recruiting participants for all clinical trials — including early trials involving patients or healthy volunteers — were the only way to ensure transparency and fulfil ethical responsibilities to patients and study participants.

Commenting on the decision, Dr An-Wen Chan, who is helping coordinate the project at WHO, said: “This is a major step forward. We hope it will contribute significantly to making clinical trials more transparent and to enhancing public trust in science”.

The clinical trials initiative comes in response to a growing chorus of scientists, academic leaders and editors of top medical journals calling for new standards and rules for the registration of all clinical trials, i.e. studies in which treatments are tested on humans.

Currently, there are several hundred registers of clinical trials around the world but little coordination among them. The WHO International Clinical Trials Registry Platform is a major initiative to bring participating registers together in a global network to provide a single point of access to the information stored in them.

For more information please see: http://www.who.int/ictrp/en/ and for the link to a web site inviting public comments please see: http://www.who.int/ictrp/comments4/en/index.html


Box 2: How will the platform work?

The planned International Clinical Trials Registry Platform will not be a register itself, but rather will provide a set of standards for registers to follow to be internationally acceptable.

The project has set down 20 aspects about a planned trial that should be reported prior to recruiting participants in order to register that trial. These 20 items must all be publicly disclosed upon registration.

The platform is also developing a global trial identification system that will assign to every qualified trial a unique reference number to cross-reference duplicate records across registers and information systems worldwide.

The platform will create an internet search portal where scientists, patients, doctors, donors and anyone else who is interested can search among participating registers for information about clinical trials taking place throughout the world.

Visitors will not be able to enrol in a trial directly through the site, but they will find contact information for the person who can assist them with enrolment or any other queries.

The 20 items to be submitted when registering a clinical trial are as follows:

  • Name of primary register, and unique ID number assigned by the primary register to this trial. :
  • Date of registration in primary register. :
  • Secondary ID: other identifying numbers and issuing authorities. :
  • Source(s) of monetary or material support. :
  • Primary sponsor: individual, organization, group or other legal person responsible for the trial. :
  • Secondary sponsor(s). :
  • Contact for public queries. :
  • Contact for scientific queries. :
  • Public title: intended for lay public in easily understood language. :
  • Scientific title of the study, as it appears in the protocol. :
  • Countries of recruitment. :
  • Health condition(s) or problem(s) studied. :
  • Intervention(s). :
  • Key inclusion and exclusion criteria for participant selection, including age and sex. :
  • Study type: for example, single arm or randomized trial. :
  • Date of enrolment of first participant, anticipated or actual. :
  • Target sample size: number of participants that trial plans to enroll. :
  • Recruitment status of this trial. Pending: participants are not yet being recruited or enrolled at any site. Active: participants are currently: being recruited and enrolled Temporary halt: there is a temporary halt in recruitment and enrolment. Closed: participants are no longer being recruited or enrolled. :
  • Primary outcome(s). :
  • Key secondary outcomes. :

For full details please see: http://www.who.int/ictrp/data_set/en/index.html

Share

"A degree of enforcement has been achieved by the requirement from the International Committee of Medical Journal Editors (ICMJE) for trials to be registered at inception if the results are to be considered for publication."
Fiona Godlee, Editor of the BMJ

"This is a unique opportunity and no other organization in the world matches WHO’s reputation and credibility."
Nikos Dedes of the European AIDS Treatment Group.