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 inDenver, CO

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Where Studies Run in Denver

Top Trials Near Denver

InSpace Accelerated Rehabilitation Study

A Phase 2 Study Evaluating Safety and Tolerability of RCT2100 (CFTR mRNA) in Healthy Participants and in Participants With CF

Prevention and Treatment of Frostbite Infection With Antimicrobial Pharmacokinetic Analysis

Open Access Database of Standing Full Body Radiographs in Asymptomatic Volunteers

Knee Osteoarthritis Rehabilitation Through Rotational Inertia

Mobile Health for Adherence in Breast Cancer Patients

Effect of High-Intensity Exercise to Attenuate Cognitive Function Limitations and Train Exercise Habits in Older People Living With HIV

Understanding Practices of Lactation and Infant Feeding Together With Women With HIV in the United States

Alveolar Macrophage Programming Following Endotoxin Exposure

Blood Samples for the Study of Peanut, Tree Nut and Other Food Allergies

The ME&MG Digital Solution for Autonomous Assessment of Myasthenia Gravis

Testing the Impact of the MOHR Follow-up Support

Swelling Management After Knee Replacement

TrialNet Pathway to Prevention of T1D

Contraceptive Hormone and Reward Measurement (CHARM Study)

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