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Updated 2026 · Informational only, not medical advice
Clinical trial compensation is one of the least transparent numbers in paid research, since most sites won’t tell you a figure until you’re already talking to a coordinator. Here’s what independent data and peer-reviewed research actually show about pay by trial type, and what matters more than the number.
What’s in this guide
Pay by trial type and phase
A peer-reviewed study published in the American Journal of Bioethics tracked healthy volunteers over three years and found a median per-trial compensation of $3,070, with a range of $150 to $13,000, and regular participants earning roughly $4,000 a year across multiple studies. Compensation varies significantly by phase and setting:
Figures reflect ranges reported in peer-reviewed research and independent clinical trial data. See references below.
Phase 1 healthy-volunteer trials pay the most because they carry the least-understood risk profile (first-in-human testing) and typically require a multi-day or multi-week residential stay at a clinical research unit under continuous monitoring. Disease-specific trials (Phase 2/3), where participants are patients who may also benefit medically from the treatment, generally pay less, since compensation isn’t meant to be the primary reason someone with a real medical need enrolls.
What actually drives the pay amount
- Time commitment. A single 2-hour visit pays far less than a 2-week inpatient stay.
- Invasiveness and risk. More procedures, more blood draws, or a novel (never-before-tested-in-humans) drug generally means higher compensation.
- Healthy volunteer vs. patient trials. Healthy-volunteer studies (no anticipated treatment benefit) tend to pay more per hour than patient trials, where the potential health benefit is itself part of the value exchange.
- Demand for your specific profile. Trials needing a hard-to-recruit demographic (a specific condition, BMI range, or medication history) often pay more to attract enough qualified volunteers.
Compensation shouldn’t be why you say yes
This is worth saying plainly: Institutional Review Boards (IRBs) that approve trials in the US specifically review compensation to make sure it isn’t so high that it pressures someone into accepting risks they wouldn’t otherwise accept. If a listed payment seems unusually large relative to a short or low-risk-sounding study, treat that as a reason to look closer, not a reason to sign up immediately. Read the informed consent document fully, ask the research team directly about known risks and side effects, and talk to your own doctor before enrolling, especially for a Phase 1 or residential study.
How to find legitimate, registered trials
ClinicalTrials.gov, the US National Library of Medicine’s public registry, is the most reliable starting point — every legitimate US trial is required to be registered there, and the listing will show the sponsor, phase, and current recruitment status. University hospitals and academic medical centers also run their own volunteer registries. Be wary of any trial you can only find through a paid-studies aggregator site with no matching ClinicalTrials.gov entry.
Prefer lower-risk paid research?Focus groups and surveys carry none of the medical considerations clinical trials do.
Read our paid focus groups guideTaxes on trial compensation
In the US, clinical trial compensation is taxable income, and sponsors are generally required to issue a 1099 form once payments to you reach $600 in a calendar year. Reimbursements for documented actual expenses (travel, parking) are generally treated differently from “inconvenience” stipends, which are taxable — keep your own records of what you’re paid regardless of whether a 1099 arrives.
Clinical trial pay: frequently asked questions
How much do clinical trials pay?
Peer-reviewed research found a median of $3,070 per trial (range $150–$13,000) for healthy volunteers, with regular participants earning roughly $4,000 a year. Pay varies widely by phase: single outpatient visits often pay $50–$300, while Phase 1 residential healthy-volunteer studies can pay $3,000–$15,000.
Do healthy volunteers get paid more than patients in trials?
Generally yes. Healthy-volunteer Phase 1 studies pay more per hour since there’s no anticipated treatment benefit to the participant, whereas disease-specific trials factor in that patients may also receive a potentially beneficial treatment.
Is it safe to join a clinical trial for the money?
Compensation should never be the deciding factor. US regulators require Institutional Review Boards to ensure payment isn’t so high it pressures people into accepting risks they wouldn’t otherwise accept. Read the full informed consent document and talk to your own doctor before enrolling.
How do I find a legitimate clinical trial?
Start with ClinicalTrials.gov, the US National Library of Medicine’s public registry — every legitimate US trial is required to register there, showing the sponsor, phase, and recruitment status.
Is clinical trial compensation taxable?
Yes. It’s treated as taxable income in the US, and sponsors generally issue a 1099 once payments reach $600 in a calendar year.