Is GuineaPig free to use?

Yes, completely free. GuineaPig pulls data from ClinicalTrials.gov and adds compensation estimates, eligibility matching, and category filters to make it easier to browse. We don't charge volunteers or collect payment information.

How does GuineaPig estimate compensation?

Pay ranges are rough estimates based on the study's phase, duration, and typical industry rates. Phase 1 inpatient studies tend to pay the most because they require overnight stays. These are not confirmed by sponsors — always contact the study team directly for the actual compensation.

How often is trial data updated?

Trial listings are pulled from ClinicalTrials.gov in real time. New studies appear as soon as sponsors register them with the NIH. Study status, enrollment counts, and location data are updated whenever sponsors submit changes to the registry.

Does GuineaPig screen me or sign me up?

No. GuineaPig is a search tool only. When you find a trial you're interested in, click 'View on ClinicalTrials.gov' to get the study team's contact information. You'll go through the sponsor's own screening and enrollment process.

Clinical Trials inBoston, MA

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Where Studies Run in Boston

Top Trials Near Boston

A Study of Safety and Drug Levels of ePGT121v1-LS, PGDM1400LS, and VRC07-523LS in Adult Participants Without HIV-1

Delaying the Onset of Nearsightedness Until Treatment (DONUT) Clinical Trial

The Physiology of Human Brown Adipose Tissue

Assessing MB-Spirit for Psychological Well-being

Driving Inclusivity, Validity, and Equity in Research Through Strategic Engagement (DIVERSE)

Lorlatinib for Newly-Diagnosed High-Grade Glioma With ROS or ALK Fusion

Triage Survey for Neurology Research Eligibility

Vertical Soft Tissue Augmentation With CTG vs ADM

PET Brain Imaging in Multiple Sclerosis, Alzheimer's Disease, and Other Neurological and Neuropsychiatric Diseases

Testing Effects of Melatonin on Uterine Contractions in Women

A Vaccine (CMV-MVA Triplex Vaccine) for the Enhancement of CMV-Specific Immunity and the Prevention of CMV Viremia in Patients Undergoing Haploidentical Hematopoietic Stem Cell Transplant

The Effect of Sleep Deprivation and Recovery Sleep on Emotional Memory and Affective Reactivity

Aptis PRUJ Prosthesis for the Treatment of Patients With Proximal Radial Ulna Joint Disorders.

Effects of Age, Sex and Isometric Exercise on Ventricular-Vascular Interactions During Cardiac Unloading

Tracing the Metabolic Flux of Orally Administered NAD+ Precursors

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