Exhaustive Notes on Ethics in Human Subjects Research

Profile of the Presenter and Scope of Expertise

• Speaker Background: Sarah Couture
  • Current Role: Public health informaticist.
  • Specialization: Managing, coordinating, and executing human subjects research.
  • Research Experience:
    • Novel methods for smoking cessation using functional magnetic resonant imaging (fMRI) technology.
    • Clinical trial coordination for drug trials involving rare kidney disease populations.
    • Biomedical research in fragile medical populations.
  • Core Responsibilities in Research:
    • Navigating the Institutional Review Board (IRB) processes.
    • Obtaining informed consent from all study participants.
    • Guiding participants through study protocols to ensure strict compliance.

Foundational Documents of Research Ethics

• The Nuremberg Code

  • Origin: Developed following the war crimes trials of World War II ($WWII$).
  • Structure: Comprises a set of $10$ ethical principles for research.
  • Key Highlights:
    • Necessity of voluntary consent.
    • Requirement for a cost-benefit analysis.
    • Strict consideration of potential harm to participants.

• The Declaration of Helsinki (1964)

  • Context: Developed nearly two decades after the Nuremberg Code in response to continued unethical research practices.
  • Core Principles:
    • Individual rights to self-determination.
    • The right to make informed decisions.
    • Emphasis on the researcher's duty solely to the participant's welfare.
    • The principle that participant welfare outweighs the interests of science or society.
    • Focused consideration for vulnerable populations frequently targeted in unethical research.

• The Belmont Report

  • Significance: The foundational document for the Institutional Review Board (IRB) and a core component of CITI certification training.
  • Three Primary Mandates:
    1. Beneficence: Every research study must demonstrate a benefit to society that outweighs potential harm.
    2. Respect for Persons: Researchers must respect the rights of participants.
    3. Justice: Researchers must ensure a fair distribution among individuals and groups regarding the costs and benefits of research.

Core Summary of Ethical Considerations for Investigators

• Summarized Key Points for Researchers:
  • Power Dynamics: Researchers occupy a position of power over participants. This is an underlying theme across all foundational documents.
  • Self-Determination: Participants possess the right to make informed decisions and exercise self-determination.
  • Welfare Precedence: The welfare of the participant takes precedence over the interests of science and society; benefits must outweigh costs.
  • Fair Distribution: Costs and benefits of research must be distributed fairly across persons and groups.

The Inherent Power Dynamic in Human Research

• The Milgram Experiment Revisited

  • Standard Setup: A "student" (actor/confederate/recording) and a "subject" (teacher).
  • Researcher/Experimenter Role: Stanley Milgram positioned the researcher in a place of authority. The study demonstrated the significant authority the researcher holds over participants.

• Sources of Researcher Authority:

  • Professional Qualifications: Researchers are required by ethical standards to be qualified, often possessing at least a bachelor's degree, often moving toward PhDs or medical degrees. This education is a source of privilege and power.
  • Control of Variables: Research is fundamentally an "exercise in control." Researchers define the rules and parameters of the study, putting participants in a vulnerable position where they do not know the "rules of the game."
  • Societal Pressure: There is significant societal pressure for participants to conform to the will of authority figures and social norms.

• Operationalizing Power and Control:

  • Coercion vs. Compliance: Clinical trial coordinators often use their authority to ensure protocol compliance and complete datasets, which are vital for statistical accuracy.
  • Ethical Mitigation: Protocols should include flexibilities that allow participants to withdraw without facing corrosive tactics.

• The Concept of Harm:

  • Researchers have historically abused power, leading to direct and indirect harm during and after studies.
  • Resource Depletion: Research can inadvertently take resources away from investigated communities.
  • Participant as Benefactor: The participant is doing the researcher a favor by giving up control and exposing themselves to risk. Often, the researcher (via their CV and career) is the only direct beneficiary.

Historical Case Studies in Research Ethics

• Tuskegee Syphilis Study

  • Conducted By: The US Public Health Services and the center for Disease Control and Prevention ($CDC$).
  • Population: Black men.
  • Purpose: To study the natural history of untreated syphilis based on the racist premise that Black men were fundamentally different from White men.
  • Deception: Participants were told they had "bad blood" and were promised healthcare and meals.
  • Withholding Treatment: Researchers actively prevented participants from receiving treatment, even when penicillin became standard care. This included interference to prevent participants from joining the military where they might be treated.

• Willowbrook State School for Children

  • Setting: An overcrowded school for mentally disabled children characterized by unsanitary conditions and hunger.
  • Study: Conducted by Dr. Saul Krugman from New York University regarding hepatitis.
  • Methodology: Children were deliberately infected with hepatitis using stool samples from infected patients mixed into their food.
  • Coercion: Parents were given vague information and led to believe participation was the only way their children would receive medical treatment.

• Henrietta Lacks and HeLa Cells

  • Subject: A woman in her late $20s$ or early $30s$ treated at Johns Hopkins University for cervical cancer.
  • Unethical Action: A gynecologist took samples of her cervical cells without permission. These became the foundational "HeLa" cell line.
  • Legacy of Abuse: Her family was not informed for years, her children were used for research without consent, and their medical records were exposed publicly.

Informed Consent: Principles and Best Practices

• Principles of High-Quality Informed Consent Forms (ICFs):

  • Language: Must be written in plain language, ideally at an eighth-grade ($8^{th}$ grade) reading level.
  • Accessibility: Should utilize graphics, tables, and timelines rather than $20$ to $30$ page walls of legal/text-heavy documents.
  • Summarization: Must provide clear summaries of risks and benefits.

• Procedural Requirements:

  • Walkthrough: Investigators must walk participants through the consent document page-by-page rather than simply asking for questions.
  • Continuity: Consent is a continuous process; researchers must ensure participants understand risks and benefits at every stage of the study.

Participant Welfare vs. Scientific Advancement

• Questioning Utility vs. Ethics:

  • While studies like Milgram, Willowbrook, and Tuskegee provided scientific insights (e.g., hepatitis treatments, stage of syphilis, psychological insights), the information could have been obtained through ethical means.
  • Quantifiable Cost of Tuskegee:
    • $128$ participants died from syphilis and related complications.
    • $40$ wives of participants were infected.
    • $19$ children of participants were infected.
  • Distrust in Institutions: Unethical research breeds long-term distrust in medical institutions, which can negatively impact public health outcomes (e.g., challenges during the COVID-19 pandemic).

• The Beneficiary Gap:

  • Researchers benefit from publications, yet most publications receive between $0$ and $1$ citations.
  • Participants rarely see direct benefits. For example, in many clinical trials, participants are not given access to their own costly lab results, which could assist their primary care physicians.
  • Advocacy for Co-ownership: Research data and benefits should be co-owned between researchers and the community.

Justice and the Fair Distribution of Research Costs and Benefits

• Marginalization in Research:

  • Historically, unethical research costs have been disproportionately borne by marginalized communities (Black communities, children with disabilities).
  • Conversely, beneficial research (like clinical trials) is overwhelmingly concentrated in the White population.

• Case Study: COVID-19 Phase III Vaccine Trials:

  • Clinical trial participation remains non-representative. Approximately $80\%$ of participants in COVID-19 Phase $3$ clinical trials were White.

• Implications for Technology:

  • Machine learning algorithms use clinical trial data as "gold standard" datasets. If these datasets are biased, the resulting algorithms will perpetuate those biases and harm vulnerable populations.

Final Considerations: Reimagining the Researcher’s Role

• "If you are not at the table, you are on the menu."

  • Researchers are the ones typically at the table.
  • The presenter suggests a shift in perspective: Researchers should view themselves as "guests" of the communities they study, while participants and communities should be viewed as the "hosts."

• Conclusion Checklist for Researchers:

  1. Involve participants in research design and execution.
  2. Ensure direct benefits for participants.
  3. Remain vigilant regarding the abuse of researcher power.