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Human Genetic ResearchWhat is human genetic research?
Human genetic research studies genetically determined material (DNA). Following the discovery of the double helix structure of DNA in the 1950’s, technologies were developed which allowed the analysis and amplification of DNA, as well as the insertion of DNA into different cells. Developments in human genetics have led to an increase of knowledge and hope of better understanding the role of genes, their functions, their interactions, and their evolution. What are the different types of genetic research?
There is a distinction to be made between research dealing with Mendelian diseases (those determined by a single gene) from research dealing with complex diseases (where many genetic and environmental factors contribute to the development of disease). In addition to these, another category can be included: research in population genetics, which aims to study the genetic composition of populations and the factors that influence it. What is the Human Genome Project (HGP)?
The Human Genome Project is an international, large-scale scientific collaboration. From 1990 to 2003, researchers working in the United States of America, the United Kingdom, France and in several other countries identified the basic composition of the human genome. A great deal of important information resulting from this project is already known; for example:
(For more information, please see the HGP’s website in the section “Insights Learned from the Sequence,” http://www.ornl.gov/sci/techresources/Human_Genome/project/journals/insights.html) This project is a major accomplishment, but it is also a new beginning. All of the bases of the human genome have been sequenced: in other words, all the base components of the genome have been identified. However, the functioning of our genome and the complex interactions between genes and the environment still remain to be understood. What is the goal of human genetic research?
Human genetic research works to study the function of genes identified during the course of the Human Genome Project (HGP) and to identify the genes associated with genetic conditions such as diabetes, hypertension, asthma, arthritis, obesity, cancers (breast, ovarian, uterine, or prostate cancer), Alzheimer’s disease and other neurodegenerative diseases. This research could eventually lead to new treatments or to more effective prevention measures for diseases with a genetic component. Other researchers address a number of ethical, legal and social issues related to human genetics research. What are the key international policy positions addressing human genetic research?
What is the regulatory framework governing human genetic research in Canada?
What is the regulatory framework governing human genetic research in Quebec?
What are the ethical and social issues surrounding human genetic research?
Consent must be free (voluntary) and informed. It indicates that the person is participating in research out of his or her own free will, after having been informed of all aspects involved in the research that could influence his decision, including: the goals of the research, the risks and inconveniences involved, the possibility to refuse to participate and the right to withdraw from research.
Informed consent requires the ability to fully understand the nature of a research project as well as the consequences of participating in research. Minors and certain adults are considered incompetent to consent to participate in a research project because their capacity to reason and to comprehend is limited, due to their age, maturity level, or for adults, not being capable of giving consent due to an advanced stage of Alzheimer's disease, for example. For a minor or incompetent adult to participate in research, his or her legal representative must give consent. Additionally, minors may not be submitted to research if it poses a serious risk for their health, and research must have the potential to benefit the participant or people who have the same characteristics such as age, disease, or handicap. Finally, research ethics committee approval and oversight is needed.
Human genetic research can reveal personal genetic information or group information. Genetic information is personal, and also has relevance for genetic relatives and populations as a whole. Special consideration needs to be given when personalized genetic research results are communicated to participants around whether such information may or should be communicated with family members or third parties, such as employers or insurers. The highly personal and private nature of DNA is recognized by the Supreme Court of Canada. The Tri-Council Policy Statement (1998, 2000, 2005) specifies in its chapter 8 on genetic research, that results from genetic testing and genetic counseling may not be made accessible to third parties unless the participant has given free and informed consent.
UNESCO’s International Bioethics Committee, along with other international bodies, specifies that the human genome, as it naturally exists, should not give rise to financial profits. On the other hand, under certain conditions, it is possible to commercialize products that have been derived from human genetic research. The Quebec 'Réseau de Médecine Génétique Appliquée' (RMGA) indicates that researchers, institutions or sponsors (for example, pharmaceutical companies) should be able to obtain intellectual property rights on the inventions that derive from genetic material and information (such as genetic tests).
Pediatric research in genetics raises particular ethical and legal concerns. Issues arise concerning consent and assent to research, the evaluation of risks and benefits of research, inclusion and exclusion criteria, confidentiality, and the return of results. There may also be issues surrounding the conservation and secondary use of genetic information (for example, during the formation of a biobank) as well as concerns regarding how to handle genetic information within families.
According to the Declaration of Helsinki (2008), research participants must be informed that they have the option to not participate in a study and a right to withdraw from research at any time, without fear of prejudice or any effect on their medical care. In Quebec, the law indicates that a person can withdraw from a research project at any time: he can do this verbally or in writing (Civil Code of Quebec, Art. 24).
Remuneration refers to payment for participation in research. Compensation refers to the provision of reimbursement or care. In Quebec, a person may not receive payment for participation in research (Civil Code of Quebec, Art. 25). He or she may receive compensation for losses incurred while participating. For example, he or she may be reimbursed for transportation or parking costs or be compensated for loss of salary for the time spent participating.
On an international scale, UNESCO’s International Bioethics Committee suggests that “Every effort should be made to ensure that human genetic data and human proteomic data are not used for purposes that discriminate in a way that is intended to infringe, or has the effect of infringing human rights, fundamental freedoms or human dignity of an individual or for purposes that lead to the stigmatization of an individual, a family, a group or communities.” In Canada, the Tri-Council Policy Statement (1998, 2000, 2005) recognizes that the risks of discrimination are part of the inconvenience of participation in genetic research. The text asks researchers who carry out genetic research projects to make such possible inconvenience known to research ethics committees. In the United States, the Genetic Information Nondiscrimination Act of 2008 ensures the protection of an individual against discrimination based on genetic information in the domains of health insurance and employment.
The communication of results raises concerns about (a) the type of results (i.e. personalized vs. generalized results), (b) who is responsible for disclosing results (i.e. researchers, physicians?), (c) to whom should results be communicated (i.e. individual research participants, families, groups), (d) how to communicate results, and (e) the right to know or not to know research results. The Council for International Organizations of Medical Sciences (CIOMS) indicates that, at the time of giving consent, prospective research participants must be informed whether general and/or individual research results will be transmitted or not. As for the return of general research results, the Quebec 'Réseau de Médecine Génétique Appliquée' (RMGA) states that researchers must communicate these with the participants involved in the research and to the interested public. General research results are often published in scientific journals. Researchers may also decide to publish a bulletin informing participants of generalized research results. According to UNESCO’s International Bioethics Committee, the Bioethics Committee of the Human Genome Organisation (HUGO), the World Health Organisation (WHO) and the Quebec 'Réseau de Médecine Génétique Appliquée' (RMGA), research participants have the right to choose whether or not to receive individual research results where such results are validated, have significant implications for participant health, and where prevention or treatment options are available. Participants may also choose to not be informed of individual results under what is known as the “right not to know.” According to UNESCO, this “right not to know” should be extended to the parents of minor participants who could be affected by these results. If a participant wishes to have access to individual results, the Quebec 'Réseau de Médecine Génétique Appliquée' (RMGA) recommends that these be communicated via the participant’s general practitioner.
There is divergence between authors on property rights in this context. No clear consensus has emerged:
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