Ethics of undisclosed payments to doctors recruiting patients in clinical
trials
Jammi N Rao, chairmana, L
J Sant Cassia, chairmanb.
a West Midlands Multicentre Research Ethics Committee, 27 Highfield
Road, Birmingham B15 3DP, b Coventry Research Ethics Committee,
University Hospitals Coventry NHS Trust, Coventry CV2 2DX
Financial advisers who sell you insurance or mortgages are required by the
rules to tell you how much commission they willearn as a result of
your custom. But doctors who ask patientsunder their care to take
part in a clinical trial are under noobligation to reveal how much
they might earn as a result of theirpatients agreeing to take part
in the trial. Can this beright?
Of course, the situation is not quite as simple as this. Selling insurance,
one could argue, is not the same as inviting apatient to take part
in a clinical trial. If the doctor was notreimbursed generously for
his time then important clinical researchwould just not get done.1
The doctor can be trusted to putthe best interests of the patient
above personal gain, and thereforetelling potential trial subjects
how much the doctor will be paidis unnecessary. Do these arguments
stand up to closer scrutiny?Or has the practice and scale of
payments reached a point whereit has become harmful to the conduct
of goodresearch?
Randomised clinical trials, often sponsored by pharmaceutical companies with
a valid commercial as much as a genuinely scientificinterest, are
the only reliable way to generate good quality evidenceof efficacy.2
Clinicians ideally should be in equipoise aboutthe treatments being
tested,3 and patients should give voluntaryconsent based on full disclosure of relevant information.4The practice of paying doctors to recruit patients under their
care, and not disclosing this pecuniary interest, corrupts boththese
ideals.
Summary points
Doctors are often paid to recruit patients to clinical trials sponsored
by pharmaceutical companies
Such payments are not at present disclosed to potential trial patients
as part of the process of gaining consent
Patients believe that such payments are wrong and that they have a
right to be told about them
Such non-disclosure is potentially unethical and damages efforts to
involve patients more fully in clinical trials.
Paying recruiters is wrong in principle
Cash payments can potentially influence doctors' motives for joining a
clinical trial. Some trials are designed by clinicians,often working
with patients,5 to answer important clinicalquestions. Other trials, especially in general practice, are different.They are sponsored and funded by pharmaceutical companies and
are designed to achieve objectives that are at least in part commerciallydetermined. Doctors who join have little or no control over the
research question, design, methods, safety monitoring, analysis,
reporting, or even the decision whether or not to publish the
results.6 Such trials depend on paying doctors to
recruit patients.The size of the payment and not the buzz of
research is what motivatesdoctors to join suchtrials.
Over the years we have seen the payments on offer soar to thousands of pounds
per completed patient. Well organised Britishgeneral practices can
earn an extra £15 000 annually for threehours' work a week.7
As a result, trials designed by non-commercialsponsors aiming to
answer clinically important questions but withoutthe funding
available to pay recruiters fail to attract doctors.8So called postmarketing research (phase IV studies) is the biggestculprit. As uncontrolled observational cohort studies, these studiesmake no attempt to address important areas of clinical uncertainty.Their stated purpose is to familiarise doctors with new and recentlylicensed drugs.9 This is marketing thinly
disguised as researchand is greatly helped byand
probably not possible withouta
systemof undisclosedpayments.
A system that allows commercially driven and clinically dubious research to
crowd out good and much needed clinical trials,and that denies
patients the opportunity to put their altruismto the best possible
use, is unethical andunacceptable.
Not disclosing payments compounds the harm
Because of the potential conflict of interest inherent in paying doctors to
recruit patients in their care, guidelines onresearch ethics deal
with this question. The Royal College ofPhysicians' guidance,10
for example, insists that such paymentsare divulged to a research
ethics committee. It states that percapita payments, especially for
postmarketing studies, are unethical;but reimbursement for time
spent is acceptable and should be declaredto an ethics committee.
What 200 patients and 394 doctors thought
patients should be told about investigators' financial ties to research
sponsors. From US study in 1995.9
Payments, often overtly on a per capita basis, have reached levels that are
of serious concern to research ethics committees.Commercial sponsors
regularly flout the implicit ban on per capitapayments by claiming
to pay for the work involved in conductingthe trial (rather than for
recruiting patients), and then overestimatingthe amount of time
required for each patient. Such payments arein addition to the
doctor's regular income and can result eitherin overwork or in
displacing other more pressing clinical activity.Anecdotally we have
heard that some hospital departments dependon regular income from
patient recruitment and that some generalpractitioners have set up
systems to trawl their databases tofind patients who fit the
requirements for a particular sponsor'sstudy to improve their
recruitmentrates.
The lack of disclosure to patients can potentially be damaging. We
acknowledge the potential for unethical practice by requiringthat
the amount and basis of payments are disclosed to a researchethics
committee. However, this does not go far enough. Not torequire a
similar disclosure to patients is as cynical as it isdemanding of
blind and unquestioning trust. Patients who takepart in trials do so
at least partly from altruism.11 Failureto reveal the conflict of interest that is inherent in payments
that doctors receive from the trial sponsors is not a good basisfor
involving patients in the research endeavour. One Americanstudy
found that just over half of patients questioned found paymentsto
clinicians unacceptable. An even greater proportion (80%) believed
that the patient had a right to know that their doctor would bepaid
for enrolling them (see figure).9
A change to the regulatory framework making full disclosure mandatory would
not meet with opposition. Until 1997 it was thepractice of one of
our ethics committees (LJSC) to insist on fulldisclosure in the
patient information sheet of the exact amountof payments to the
investigator. In most cases neither the sponsornor the investigator
objected to this policy. The opportunitypresented by the new system
of multicentre research ethics committeesto achieve a consistent
approach on this question has not beentaken up. The attitude still
prevails that patients can alwaysask about payments if this is
important to them. But it is disingenuousto expect patients to know
that something they have not been toldanything about is important
enough for them to askabout.
Conclusion
Consent obtained on the basis of withholding information on an issue that
patients consider important is not fully informedconsent. If we are
ever to reach the ideal of involving patientsin the design and
conduct of clinical trials5 then we coulddo worse than treat patients as equal partners by making full
and frank disclosure of payments that trial sponsors make to doctors
for recruiting their patients.12
Wilson S, Delaney B, Roalfe A, Hobbs R. Clinical trials in
primary care. Costs of research should not be borne by service
practitioners. BMJ 1999; 318: 1484[Full
Text].
La Puma J, Stocking CB, Rhoades WD. Financial ties as part
of informed consent to postmarketing research. Attitudes of American doctors
and patients. BMJ 1995; 310: 1660-1661[Full
Text].
Neuberger J. An ethical debate. Financial ties as part of
informed consent to postmarketing research: From the patient's perspective.
BMJ 1995; 310: 1661-1662[Full
Text].
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