Dr. Roberto Llanos Zuloaga, (Medical Doctor), Av. Javier Prado Este 1038, Lima 27 Perú
Introduction:
The main purpose of this monograph is to develop a critical research
and compare the criterion to obtain the ecthical validation in the
investigation of human beings, according to the contribution of EZEQUIEL
EMANUEL (1) and DIEGO GRACIA (2) in five protocols presented to the
Investigation Ehical Committee of the Peruvian Bioethical Association (ASPEBIO).
Material and Methods:
The material consists of five different protocols of investigation:
1. Comparison between two medicines.
2. Genetic study of patients’ relatives with Down Syndrome.
3. Uterine Cancer discard.
4. Diagnoses and treatment of uterine neck cancer.
5. National reality study regarding the knowledge of Bioethics in the
medical group.
1. In the diagnosis and treatment of the uterine neck cancer investigation
in a native Peruvian population, the protocol answers the following questions:
a) Does it justify to prepare an investigation?
b) Are the participating women in a lessening situation than
the ones that do not participate? Or in maintaining their actual
situation?
c) Is there any direct benefit for the participating women?
d) Which are the risks for each stage? Could the risks surpass
the benefits? (Diffusion and Treatment).
e) Will the patients have the autonomy of deciding their participation?
f) Training and Human Resources aspects of the project.
g) Responsibility of the participants (central level, national level,
international level).
h) Schedule?
i) The informed consent explains:
1. The possible risks of the visual inspection.
2. The inconvenience of other similar exams.
3. The benefits of participating in the exam.
4. Names of the researchers.
5. Decision of leaving the investigation.
6. The gratuitous posterior treatment.
7. Signatures.
2. The second investigation is a search of information and evaluation, during one year is planning to investigate our national reality in terms of Bioethics. The research expects to know about the grade of knowledge of Bioethics in Medical Institutions of our three regions and in samples of our large population, so it could be used in benefit of the whole population and not only in a stratum.
The informed consent will be requested to the thirty thousand doctors
with professional practices in Perú. The document specifies
that the interview is made by qualified personnel. The responsibility
of the professionals to express their real knowledge about Bioethics.
The existence of other similar international investigations made on a small
scale. The possible risks in case the information could be not accurate
or false. The benefits of participating in the exam. The names of
the responsible researchers. The decision of leaving the investigation.
The right to know about the final results of the investigation. Signatures.
The results of the Research will shape in one year with the level of
knowledge that people related to Medicine has about Bioethics. After one
year research it will give us information about the improvement on the
theoretic information, the application of Bioethics in the practice, changes
in medical diagnosis and treatment, use of technology and new concepts
and also improvement within the human relationships that the sample and
their enviroment obtained. In addition the research will have intense practical
consequences.
Due to the factor that the efforts were concentrated on people with influence on others the researchers wait that it would have an increasing effect. On the other hand with the support of partners which will colaborate in the diffussion of Bioethics and the dissemination of the results of the project.
The researchers will take care to communicate about the project to a
wide variety of audiences, many of which do not understand scientific methodology.
Scientists concentrated around this project, the main comitte and the partners
will be sure to establish appropiate mechanisms to maintain the research
withing ethical limits and humanitarian goals. The head interest concern
information about informed consent, confidentiality and justice principles.
All the participants would be treated in a educational framework and with
respect of individual rights and freedom.
1er. In the first protocol, the investigation has a social and scientific value, the clinic significance consists in using an immediate and simple diagnosis method.
2do. In the second protocol: the investigation has a social and scientific value, its implementation is completely possible, the identification and selection of the persons are suitable, the benefits are bigger than the risks, the checking will be done by experts in the matter, the informed consent is in relationship with the interests of the persons and assures the confidentiality.
3cro. protocol tehe reserch a Prospective, double blind randomized, comparative study to reviewuate the genetic testing for breast and ovarian cancer.
The objectives are to create molecular patterns for the early diagnosis.To
develop strategies to revert the early steps of the tumor that could be
the most effective way to control ovarian and breast cancer, and to idenrify
the genes responsible for the inherited ovarian and breast cancer.
The participants will be chosen upon their family history. They can
join the study referred from their physicians or genetic counselors. After
the first contact with the participants is made, they will receive a letter
in which they can find the details of the project. If they are interested
it will be explained to each of them that we need a detailed story of his
or her study. They will be asked for their names, addresses of the relatives
alive and we will send a letter to each of them explaining the purpose
of the study. If it is necessary we wil expain to them over the telephone
all the details they want to know and if they have any doubts, we will
invite each member of the family to participate.
The first pedigree will be made with the probands and will include
information about parents, grandparents, uncles, aunts, cousins, nieces
and grandchildren.
Confidentiality: Clinical histories will be mainteined undisclosed,
only the members of the staff will have access to them. The information
will be in the computer and the laboratory data will be identified by numbers.
The relationship between data of identification and codes will be kept
until the pedigree has been completed, no later than five years. Each participant
wil be sure than any answer to the questions will not be informed to the
other members of the family.
Risks: The risks and discomfort associated wiyh the procedures are
due to the anxiety that could provoque the discussion of the family’s medical
history and the discomfort could be present when the blood sample must
be taken. Efforts will be done to avoid risks and discomfort.
Benefits: A genetic counselor will answer all the questions about breast
cancer to the participants and their relatives, without any cost. Clinic
Colaborators will help to refer the patients all over the country. If any
member of the family is at risk of developing cancer, she will receive
the specific genetic counseling.
The participants of the study will contribute to a better knowledge
of the ovarian and breast cancer.
No adverse effects exist in the study, however if one should appear
the staff will take care of it and the medical insurance will pay the fees
to the participants..
4. to. protocol the reserch: CONTRIBUTION TO THE ETHIOLOGY OF AUTISM.
Their objectives are: a) General: To identify the etiologic factors that
determinme the diagnostic of autism in the sample being studied. b) Secondary:
To investigate in the patients chromosome alterations. To investigate specific
genetic tables in the studied sample. To investigate psychopathologic behavior
in relatives. To investigate cerebral structural and/or functional alterations
with neurological statements. (SPECT).
ETHIC FACTORS: Patients will be enrolled only after having signed a
written informed consent. The patients will benefit from the analysis and
appropriate studies for free. Moreover they will collaborate with science.
Absolute confidentiality of data will be maintained and upon publishing
the analysis, the patient’s anomyty will be maintained.
Those patients that happened to be harmed by procedures related to
the study will be handled by investigatorss until they are stabilized.
Any financial exposes will be covered by the sponsoring entity or the investigator.
The present protocol will be sumitted to the Ethic Commitee in investigation
of the institution. The patients will be able to make any type of questions
related with the protocol to the investigators during the course of studies
as well as to the Ethic Commitee regarding their rights.
SIZE OF THE SAMPLE AND POWER, INCLUSION CRITERIA AND PROCEDURES: All
subjects referred with an autism diagnostic will first be examined. The
observation and tests have the purpose of establishing which of the subjects
referred with a diagnostic of autism show an etiologic diagnostic that
correspond to other pathologics. Then the sample conformed by parents and
siblings (15 years old and up) will be defined from the patients diagnosed
with autism. In third place will begin a recollection of data from the
relatives of people with TA, to whom will be applied the Mini-Mult 82.
At the same time there will be a collection of data given by subjects
of the control group (normal and with other diagnostics) to whom the Mini-Mult
82 will be applied.
CRITERIA OF EXCLUSION: 1) To be people with other genetic conditions
that do not show an autistic behavior.
2. To be non-biological relatives of people with autistic behavior.
MESUREMENTS OF EFFICIENCY AND CERTAINTY: A careful history and clinical
analysis as well as the reviewuation of a genetist doctor and other specialists
in the advising bureau mentioned above.
The citogenetic andd biochemical studies will be processed in the Citogenetic
Laboratory of the Child Health Institute (Instituto de Salud del Niño),
in the Laboratory of the Genetic Institute of the University Cayetano Heredia
and in the Medical Center Specialized in Genetics.
5to. Protocolo study XYZ:
Tile: Prospective, double blind, randomized, comparative study to reviewuate
security and efficacy from drug A versus drug B in the treatment of urinary
infections.
Hypothesis: Drug A has the same effectiveness as Drug B, both produce
the microbiologic and clinic healing in about 95% from the subjects. The
adverse events from A (Drug in study) are less than those produced by Drug
B (standard Drug).
Objectives: The main objective of this study is to compare the efficacy
and security from Drug A to Drug B in the urinary infection.
Study Design: Prospective study, double blind, random, comparative
of two groups for Drugs A and B respectively. The patients assigned to
the first group, will receive Drug A, 400 mg. one daily dose during 10
days, while the patients assigned to the second group will receive Drug
B 400mg. Bid for 10 days, while the patients assigned to the second group
INFORMED CONSENT: You have been diagnosed as urinary infection. So,
you’re invited to participate on this screening. Up next, you’ll be provided
of information concerning the study and your participation on it. It’s
necessary for you to choose to participate or not. Take the time you need
in order to take a determination. The physician in charge of it or any
person previously authorized by the ivestigator’s staff will answer any
question linked to study as well as any question concerning your rights
as a participant will be regarded by the Ethics on Investigation Committee
at Hospital ABC.
WHICH IS THE PURPOSE OF THE STUDY?
The scope of the current study is to comare effectiveness ans dafety
in drug A versus drug B on urinary infections treatment you are afflicted
of. Drug A is a medicine of investigation being screened by Laboratory
A while drug B is a medicine used nowadays for urinary infections treatment
and is traded in our system.
WHO CANNOT PARTICIPATE ON THE CURRENT STUDY?
The following patients cannot participate on the current study:
If individual is less than 20 years old, or is more than 50 years old.
If individual presents nauseas and vomit.
If individual presents alterations on hepatic or renal function.
History involving Allergy to medicines A or B.
If individual has already been supplied medication for his urinary
infection.
If individual is pregnant or is in suckling stage.
If individual presents any final disease, fastly progressive or serious.
If there is need to supply antibiotics different from those relating
to the current study. Hemoglobine less than 9 gr/dl. And Neutropenia with
neutrophile.
EZEKIEL EMANUEL (1999), believe that there are seven ethical requirements
that to provide a systematic and rational framework for determining wether
clinical research is ethical. These requirements are meant to guide the
development and implementation of protocols and their review, not for reviewuating
the ethics of an individual investigator’s actions much less the clinical
research enterprise as a whole. This requirements are:
1- Value: To be ethical, clinical research must be valuable, which
is a judgement about the social, scientific, or clinical significance of
the research. The research must be either reviewuating an intervention
that can lead to improvements in the health or well-being of he population,
or be conducting a preliminary study to developing an intervention , or
be testing a hypothesis that can generate important knowledge about structure
or function of human biologic systems if that knowledge does not have inmediate
practical ramifications.
2- Scientific validity: the principal idea is that bad science is unethical.
In essence the scientific validity of a syudy on human beings is in itself
an ethical principle (RUTSTEIN 1969). The research must have a clear scientific
objective, be designed using accepted principles, methods, and reliable
practices, have sufficient power to definitively test the objective, plausible
data analysis plan, and it must be able to be implemented.
3- Fair subject selection: The identification and selection of potential
subjects for a research trial must be fair. There are four facets to this
requirement: a) specific groups of subjects are selected for reasons related
to scientific questions involved in the research. b) fair subject selection
requires that all groups should be offered the opportunity to participate
in research unless there are good reasons of science or risk to restrict
their eligibility.
4- favorable risk-to-benefit ratio: Clinical research can be justified
only when: a) The potential risks to individual subjects are minimized.
2) The potential benefits to individual subjects or to society are maximized,
and c) the potential benefits are proportionate to or outweigh the risks
being assumed.
5- Independent review: An independent review has: a) is reviewed by
individuals with appropiate expertise unaffiliated with the study who have
the authority to approve, amend or, in the extreme, terminate it. b) has
social accountability.
6- Informed consent: The propose of informed consent is to ensure that
individuals participate in the proposed clinical research only when it
is consistent with their values, interests, and preferences.
7- Respect for enrolled subjects: Subjects must continue to be treated
with respect throughout the time they are participating in clinical research:
a) permitting subjects to change their mind. and b) confidentiality in
information.
DIEGO GRACIA (1999), distinguish two parts in the basic issues in the
ethical analysis of a research protocol:
I Scientific analysis of the protocol and
II Ethical analysis of the protocol.
The scientific analysis of the protocol has five parts:
1. Critical analysis of the objectives: a) Objective of the study.
b) Reasons for conducting the study. c) Essential information about the
problem, and background from relevant literature.
2. Critical analysis of the experimental design: a) Type of study (
controlled study, pilot study, etc.) and prefearably what phase it represents.
b) Randomization method, including the procedure and practical means of
implementation. c) experimental design (parallel groups etc.). d) Measures
taken to reduce biases.
3. Critical analysis of the reviewuation process: a) How will the findings
be reviewuated?. b) Methods for computing and calculating the effects.
c) Descriptionof how to deal with and report drop-outs and withdrawals
from the study.
4. Critical analysis of the methodology: a) Statistical methods to
be used. b) Statistical justification of the sample size. c) Significance
level used.
5. Critical analysis of the research team: a) Principal investigator.
b) Research team. c) Institutional afiliation. d) Institution in which
the study will be carried out.
The Ethical analysis of the protocol has three parts:
1. Critical analysis of the informed consent: a) How will healthy patients/volunteers
be informed and how will their consent be obtained?. b) Posible reasons
for failure to obtain informed consent. C) Analysis and review of the form
utilized.
2. Critical analysis of the risk-to-benefit ratio: a) Drugs used and
dose. b) Treatment of the control group or during the control period (placebo,
etc.) c) Route of administration, dose, dosage schedule, period of treatment
for the study drug and the reference drug. d) Rules for the use of concomitant
drugs. e) Measures to ensure safe management of drugs. f) Measures to compliance
monitoring. g) Analysis of effects. h) collection of reviewuation parameters.
i) special techniques. j) Adverse reactions. k) managing complications.
l) study code and emergency. m) report of adverse reactions.
3. Critical analysis of equitable sample selection: a) Specification
of the subjects. b) diagnostic criteria. c) Exhaustive criteria for the
inclusion and primary and secondary exclusion of patients. d) Analysis
of special groups fetuses, children, mentally ill persons, prisoners, pregnant
women. etc.
RESULTS:
In the first protocol, the investigation has a social and scientific value, the clinic significance consists in using an immediate and simple diagnosis method. This avoids the patients from coming back to find out about his or her results, the treatment would also be immediate. It is simple to implement it, we need to follow a two step requirement, the benefits surpass the risks, the checking is done by qualified people, the informed consent is consistent and assures the persons the continuity of the treatment. The goals of the investigation are exact, the experimental design appropriate, it has a good checking criterion an adequate methodology and selection of participants.
In the second protocol: the investigation has a social and scientific value, its implementation is completely possible, the identification and selection of the persons are suitable, the benefits are bigger than the risks, the checking will be done by experts in the matter, the informed consent is in relationship with the interests of the persons and assures the confidentiality. The goals are clear, the reasons complement with the social value of the protocol, it is a pilot study, the checking methods are appropriate, it has not been defined yet which statistical method is going to be used, the researchers team is leaned in the institutional structure of the medical union. The informed consent is adequate, and also the critical analysis of the risk-benefit and the selection of the doctors that will take part in the investigation.
In the third protocol: (breast and ovarian cancer) we cannot find clear goals, it lacks of the list of the researchers’ names with data sheet, the protocol does not meet the requirements of the Investigation and Ethical Committee (List of CIOMS), the biomedical techniques should improve. It lacks of certainty in the goal of the investigation of the sample, the information is not sufficient, the recruitment of the persons is arguable, there are not enough statistical data, the way and the processing is insufficient, the introduction is not easy to understand, there is a lack of definition in the way the study is going to be made, the questionnaire is not being known, we can find an excessive use of medical slang and the panoramic view of the protocol does not adjust to the scheme. For these reasons, and after following the above mentioned items the protocol must be rejected.
The fourth protocol (Autism) shows an investigation with social and scientific value, the clinic significances consists in the search of etiologic factors determinant in the autism diagnosis. The implementation is adequate and it assures the continuity of the procedure. The benefits surpass the risks. The checking is made by qualified people, the informed consent is understandable and adequate and assures the persons the continuity of the medical attention. The goals of the investigation are precise, the experimental design appropriate, it posses a good checking criterion, appropriate methodology and selection of participants.
In the fifth protocol (medicines) the signature of the informed consent is missing, the extension of the investigation is adequate, it indicates the fountain of subvention costs for difficult cases, the title of the investigation is appropriate, it indicates the previews steps of the study, the names of the people of the work team, it explains in the consent the subvention of the costs of transportation for the people involved in the investigation, it lay the foundation in the random sample, it meets the requirements of the amplification of the study profile, the incentives to the researchers. Being solved all the above mentioned items, the project was approved.
DISCUSSION, CONCLUSIONS AND RECOMMENDATIONS
1. The correlation is adequate between the seven items that the author
EZEKIEL EMANUEL and the two parts that meet the ethical requirements for
the investigation by DIEGO GRACIA.
2. It is obvious that, in the actual state of the investigation
of Ethics in Perú, it does not exist agreement in the structure
of the protocol of investigation of the various projects, mainly in the
way the informed consent should be redacted.
3. We suggest the need to prepare a universal model of protocol of
investigation, ethical qualification, and uniformity in the way the
informed consent should be redacted.
4. The model that meets the items of EMANUEL y GRACIA seems to us the
most adequate for the ethical qualification of the future protocols of
investigation.
5. It is evident the need of giving the researchers information about
the existence of the informed consent, unspoken consent, implicit consent,
etc.
6. In the current year it has been appearing new guides for the ethical
committees of the investigation (for ex. CIOMS) that could modify in any
way the assent we have today.
RESUME
We have been preparing a comparative critic of five protocols of Peruvian
investigations. Their qualification has been made by the Peruvian
ethical committees and also supported by EZEKIEL EMANUEL y DIEGO GRACIA.
We arrive to the conclusion that it is needed to apply the model
of both authors for the ethical qualification of the protocols of
investigation of the corresponding committees, the need of information
regarding the guides of qualification approved in the current year and
the existence of various consents in relationship with the persons that
participate in the investigations.
REFERENCES:
1. EMANUEL,E.: “What makes clinical research ethical? Seven ethical
requirements”, en: Research on human subjects: international experience,
1999, 33-44, Regional Program on Bioethics, Santiago, Chile.
2. GRACIA,D: “Research on human subjects: Logical, historical, and
ethical implications”, en: Research on human subjects: international experience,
1999, 59-78, Regional Program on Bioethics, Santiago, Chile.
3. RUTSTEIN: (citado por EMANUEL, 1999).
We recommend the reading of the following bibliography:
1. UNAIDS: “Ethical considerations in HIV preventive vaccine research”,
May 2000, Ginebra, Suiza.
2. GARRAFA, V. et al.: “Bioethical language and its dialects and idiolects”,
en: Cad. Saúde Pública, 1999, 15, (Sup. 1): 35-42, Rio de
Janeiro.
3. OMS: Guías Operacionales Para Comités de Ëtica
que revisarán Investigación Biomédica, 2000, Ginebra,
(en prensa).