Evidence base
Trace the source behind the guidance
Use the issuing agency or regulation for a legal or regulatory claim. Use identified research to examine participant experience, with its population and limits intact.
How sources are chosen
Prefer federal regulations, agency guidance, official registries, public-health agencies, and documents issued by the organization responsible for the rule or record. Use peer-reviewed research and transparent public surveys when participant experience requires evidence beyond agency guidance. Identify the method, population, setting, and limits instead of turning a reported pattern into a universal claim.
Links below were checked September 5, 2026. A source can change after review; use the correction path when a link or interpretation needs attention.
U.S. Food and Drug Administration
Clinical Trial Participation (opens in a new tab)
U.S. Food and Drug Administration
Step 3: Clinical Research (opens in a new tab)
U.S. Food and Drug Administration
Informed Consent Guidance for IRBs, Clinical Investigators, and Sponsors (opens in a new tab)
National Institutes of Health
Clinical Research Trials and You: The Basics (opens in a new tab)
National Institutes of Health
Guiding Principles for Ethical Research (opens in a new tab)
National Institute on Aging
Clinical Research: Benefits, Risks, and Safety (opens in a new tab)
Office for Human Research Protections
Questions to Ask About Volunteering for a Research Study (opens in a new tab)
Office for Human Research Protections
About Research Participation (opens in a new tab)
Office for Human Research Protections
Informed Consent FAQs (opens in a new tab)
HHS Office for Human Research Protections and FDA
Use of Electronic Informed Consent: Questions and Answers (opens in a new tab)
Secretary’s Advisory Committee on Human Research Protections (SACHRP), HHS
Addressing Ethical Concerns: Offers of Payment to Research Participants (opens in a new tab)
Office for Human Research Protections
Submitting a Complaint About Research Involving Humans (opens in a new tab)
Office for Human Research Protections
Guidance on Withdrawal of Subjects from Research (opens in a new tab)
U.S. Food and Drug Administration
Payment and Reimbursement to Research Subjects (opens in a new tab)
U.S. Food and Drug Administration
What is a Serious Adverse Event? (opens in a new tab)
U.S. Food and Drug Administration
Expanded Access: Information for Patients (opens in a new tab)
Centers for Medicare & Medicaid Services
Getting Started with CLIA (opens in a new tab)
World Health Organization
International Clinical Trials Registry Platform Search Portal (opens in a new tab)
National Institutes of Health Office of Science Policy
Return of Research Results (opens in a new tab)
ClinicalTrials.gov
How to Read a Study Record (opens in a new tab)
ClinicalTrials.gov
Common Questions for Patients and Families (opens in a new tab)
ClinicalTrials.gov
Glossary Terms (opens in a new tab)
ClinicalTrials.gov
How to Read Study Results (opens in a new tab)
ClinicalTrials.gov
How to Search for Studies with Results (opens in a new tab)
U.S. Department of Health and Human Services
HIPAA Privacy Rule and Research (opens in a new tab)
U.S. Department of Health and Human Services
Research Participants’ Access to Research Records or Results (opens in a new tab)
National Institutes of Health IRB Office
Compensation for Research Participation (opens in a new tab)
U.S. Department of Justice
ADA Requirements: Effective Communication (opens in a new tab)
U.S. Department of Justice
Americans with Disabilities Act Title II Regulations (opens in a new tab)
U.S. Department of Justice
Americans with Disabilities Act Title III Regulations (opens in a new tab)
Office for Human Research Protections
Informed Consent of Subjects Who Do Not Speak English (opens in a new tab)
U.S. Food and Drug Administration
Conducting Clinical Trials With Decentralized Elements (opens in a new tab)
U.S. Food and Drug Administration
Institutional Review Boards Frequently Asked Questions (opens in a new tab)
Electronic Code of Federal Regulations
21 CFR 50.25 — Elements of informed consent (opens in a new tab)
Electronic Code of Federal Regulations
45 CFR 46.116 — General requirements for informed consent (opens in a new tab)
Centers for Medicare & Medicaid Services
Affordable Care Act Implementation FAQs — Set 31 (opens in a new tab)
Centers for Medicare & Medicaid Services
National Coverage Determination 310.1 — Routine Costs in Clinical Trials (opens in a new tab)
Centers for Medicare & Medicaid Services
How to Read a Health Insurance Explanation of Benefits (opens in a new tab)
U.S. Food and Drug Administration
Reporting Complaints Related to FDA-Regulated Clinical Trials (opens in a new tab)
U.S. Food and Drug Administration
E6(R3) Good Clinical Practice (opens in a new tab)
U.S. Food and Drug Administration
IND Application Procedures: Investigator’s Responsibilities (opens in a new tab)
U.S. Food and Drug Administration
Sponsor’s Responsibilities for Significant Risk Device Investigations (opens in a new tab)
Secretary’s Advisory Committee on Human Research Protections, HHS
FAQs on Informed Consent for Use of Biospecimens and Data (opens in a new tab)
ClinicalTrials.gov
ClinicalTrials.gov Policy Frequently Asked Questions (opens in a new tab)
Naidoo et al., BMC Medicine
The research burden of randomized controlled trial participation: a systematic thematic synthesis of qualitative evidence (opens in a new tab)
Holmberg et al., BMJ Open
Clinical trial participants’ experiences of completing questionnaires: a qualitative study (opens in a new tab)
Tarrant et al., Health Expectations
Consent revisited: the impact of return of results on participants’ views and expectations about trial participation (opens in a new tab)
Berrios et al., Journal of Genetic Counseling
Enrolling Genomics Research Participants through a Clinical Setting: the Impact of Existing Clinical Relationships on Informed Consent and Expectations for Return of Research Results (opens in a new tab)
Sofaer et al., Journal of Medical Ethics
Subjects’ views of obligations to ensure post-trial access to drugs, care and information: qualitative results from the Experiences of Participants in Clinical Trials (EPIC) study (opens in a new tab)
Coyle et al., Trials
A secondary qualitative analysis of stakeholder views about participant recruitment, retention, and adherence in decentralised clinical trials (DCTs) (opens in a new tab)
National Institute for Health and Care Research
Participant in Research Experience Survey 2023/24 (opens in a new tab)
How Google uses information from sites or apps that use our services (opens in a new tab)
What Clinical Forage does not use as a controlling source
Recruitment advertisements, search snippets, social posts, payment headlines, anonymous anecdotes, and third-party directories can provide leads. Verify their claims against a registry, institution, consent document, study team, official source, or published research method.