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Ethical Principles for
Medical Research Involving Human Subjects
Adopted by the 18th WMA General Assembly Helsinki, Finland,
June 1964
and amended by the
29th WMA General Assembly, Tokyo, Japan, October 1975
35th WMA General Assembly, Venice, Italy, October 1983
41st WMA General Assembly, Hong Kong, September 1989
48th WMA General Assembly, Somerset West, Republic of South
Africa, October 1996
and the
52nd WMA General Assembly, Edinburgh, Scotland, October
2000
A. INTRODUCTION
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| 1. |
The World Medical Association has developed the
Declaration of Helsinki as a statement of ethical
principles to provide guidance to physicians and other
participants in medical research involving human subjects.
Medical research involving human subjects includes
research on identifiable human material or identifiable
data. |
2. |
It is the duty of the physician to promote and safeguard
the health of the people. The physician's knowledge
and conscience are dedicated to the fulfillment of
this duty. |
3. |
The Declaration of Geneva of the World Medical Association
binds the physician with the words, "The health
of my patient will be my first consideration,"
and the International Code of Medical Ethics declares
that, "A physician shall act only in the patient's
interest when providing medical care which might have
the effect of weakening the physical and mental condition
of the patient." |
4. |
Medical progress is based on research which ultimately
must rest in part on experimentation involving human
subjects. |
5. |
In medical research on human subjects, considerations
related to the well-being of the human subject should
take precedence over the interests of science and
society. |
6. |
The primary purpose of medical research involving
human subjects is to improve prophylactic, diagnostic
and therapeutic procedures and the understanding of
the aetiology and pathogenesis of disease. Even the
best proven prophylactic, diagnostic, and therapeutic
methods must continuously be challenged through research
for their effectiveness,efficiency, accessibility
and quality. |
7. |
In current medical practice and in medical research,
most prophylactic,diagnostic and therapeutic procedures
involve risks and burdens. |
8. |
Medical research is subject to ethical standards that
promote respect for all human beings and protect their
health and rights. Some research populations are vulnerable
and need special protection. The particular needs
of the economically and medically disadvantaged must
be recognized. Special attention is also required
for those who cannot give or refuse consent for themselves,
for those who may be subject to giving consent under
duress, for those who will not benefit personally
from the research and for those for whom the research
is combined with care. |
9. |
Research Investigators should be aware of the ethical,
legal and regulatory requirements for research on
human subjects in their own countries as well as applicable
international requirements. No national ethical, legal
or regulatory requirement should be allowed to reduce
or eliminate any of the protections for human subjects
set forth in this Declaration. |
B. BASIC PRINCIPLES FOR ALL MEDICAL RESEARCH
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| 10. |
It is the duty of the physician in medical research
to protect the life, health, privacy, and dignity
of the human subject. |
11. |
Medical research involving human subjects must conform
to generally accepted scientific principles, be based
on a thorough knowledge of the scientific literature,
other relevant sources of information, and on adequate
laboratory and, where appropriate, animal experimentation.
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12. |
Appropriate caution must be exercised in the conduct
of research which may affect the environment, and
the welfare of animals used for research must be respected.
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13. |
The design and performance of each experimental procedure
involving human subjects should be clearly formulated
in an experimental protocol. This protocol should
be submitted for consideration, comment, guidance,
and where appropriate, approval to a specially appointed
ethical review committee, which must be independent
of the investigator, the sponsor or any other kind
of undue influence. This independent committee should
be in conformity with the laws and regulations of
the country in which the research experiment is performed.
The committee has the right to monitor ongoing trials.
The researcher has the obligation to provide monitoring
information to the committee, especially any serious
adverse events. The researcher should also submit
to the committee, for review, information regarding
funding, sponsors, institutional affiliations, other
potential conflicts of interest and incentives for
subjects. |
14. |
The research protocol should always contain a statement
of the ethical considerations involved and should
indicate that there is compliance with the principles
enunciated in this Declaration. |
15. |
Medical research involving human subjects should be
conducted only by scientifically qualified persons
and under the supervision of a clinically competent
medical person. The responsibility for the human subject
must always rest with a medically qualified person
and never rest on the subject of the research, even
though the subject has given consent. |
16. |
Every medical research project involving human subjects
should be preceded by careful assessment of predictable
risks and burdens in comparison with foreseeable benefits
to the subject or to others. This does not preclude
the participation of healthy volunteers in medical
research. The design of all studies should be publicly
available. |
17. |
Physicians should abstain from engaging in research
projects involving human subjects unless they are
confident that the risks involved have been adequately
assessed and can be satisfactorily managed. Physicians
should cease any investigation if the risks are found
to outweigh the potential benefits or if there is
conclusive proof of positive and beneficial results.
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18. |
Medical research involving human subjects should only
be conducted if the importance of the objective outweighs
the inherent risks and burdens to the subject. This
is especially important when the human subjects are
healthy volunteers. |
19. |
Medical research is only justified if there is a reasonable
likelihood that the populations in which the research
is carried out stand to benefit from the results of
the research. |
20. |
The subjects must be volunteers and informed participants
in the research project. |
21. |
The right of research subjects to safeguard their
integrity must always be respected. Every precaution
should be taken to respect the privacy of the subject,
the confidentiality of the patient's information and
to minimize the impact of the study on the subject's
physical and mental integrity and on the personality
of the subject. |
22. |
In any research on human beings, each potential subject
must be adequately informed of the aims, methods,
sources of funding, any possible conflicts of interest,
institutional affiliations of the researcher, the
anticipated benefits and potential risks of the study
and the discomfort it may entail. The subject should
be informed of the right to abstain from participation
in the study or to withdraw consent to participate
at any time without reprisal. After ensuring that
the subject has understood the information, the physician
should then obtain the subject's freely-given informed
consent, preferably in writing. If the consent cannot
be obtained in writing, the non-written consent must
be formally documented and witnessed. |
23. |
When obtaining informed consent for the research project
the physician should be particularly cautious if the
subject is in a dependent relationship with the physician
or may consent under duress. In that case the informed
consent should be obtained by a well-informed physician
who is not engaged in the investigation and who is
completely independent of this relationship. |
24. |
For a research subject who is legally incompetent,
physically or mentally incapable of giving consent
or is a legally incompetent minor, the investigator
must obtain informed consent from the legally authorized
representative in accordance with applicable law.
These groups should not be included in research unless
the research is necessary to promote the health of
the population represented and this research cannot
instead be performed on legally competent persons.
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25. |
When a subject deemed legally incompetent, such as
a minor child, is able to give assent to decisions
about participation in research, the investigator
must obtain that assent in addition to the consent
of the legally authorized representative. |
26. |
Research on individuals from whom it is not possible
to obtain consent, including proxy or advance consent,
should be done only if the physical/mental condition
that prevents obtaining informed consent is a necessary
characteristic of the research population. The specific
reasons for involving research subjects with a condition
that renders them unable to give informed consent
should be stated in the experimental protocol for
consideration and approval of the review committee.
The protocol should state that consent to remain in
the research should be obtained as soon as possible
from the individual or a legally authorized surrogate.
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27. |
Both authors and publishers have ethical obligations.
In publication of the results of research, the investigators
are obliged to preserve the accuracy of the results.
Negative as well as positive results should be published
or otherwise publicly available. Sources of funding,
institutional affiliations and any possible conflicts
of interest should be declared in the publication.
Reports of experimentation not in accordance with
the principles laid down in this Declaration should
not be accepted for publication. |
C. ADDITIONAL PRINCIPLES FOR MEDICAL RESEARCH COMBINED
WITH MEDICAL CARE
| 28. |
The physician may combine medical research with
medical care, only to the extent that the research
is justified by its potential prophylactic, diagnostic
or therapeutic value. When medical research is combined
with medical care, additional standards apply to protect
the patients who are research subjects. |
29. |
The benefits, risks, burdens and effectiveness of
a new method should be tested against those of the
best current prophylactic, diagnostic, and therapeutic
methods. This does not exclude the use of placebo,
or no treatment, in studies where no proven prophylactic,
diagnostic or therapeutic method exists. |
30. |
At the conclusion of the study, every patient entered
into the study should be assured of access to the
best proven prophylactic, diagnostic and therapeutic
methods identified by the study. |
31. |
The physician should fully inform the patient which
aspects of the care are related to the research. The
refusal of a patient to participate in a study must
never interfere with the patient-physician relationship.
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32. |
In the treatment of a patient, where proven prophylactic,
diagnostic and therapeutic methods do not exist or
have been ineffective, the physician, with informed
consent from the patient, must be free to use unproven
or new prophylactic, diagnostic and therapeutic measures,
if in the physician's judgement it offers hope of
saving life, re-establishing health or alleviating
suffering. Where possible, these measures should be
made the object of research, designed to evaluate
their safety and efficacy. In all cases, new information
should be recorded and, where appropriate, published.
The other relevant guidelines of this Declaration
should be followed. |
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