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 inPhiladelphia, PA

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Where Studies Run in Philadelphia

Top Trials Near Philadelphia

Plantar Fasciitis Randomized Clinical Control Trial

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

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

Eatwell Clinical Trial (R01)

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

PET Imaging Tau Accumulation in FTLD and Atypical Alzheimer's Using [18F]-PI-2620

Variability in Analgesic Response to Ibuprofen

Self-collection for HPV Testing to Improve Cervical Cancer Prevention (SHIP) Trial (LMI-001-A-S04)

Timing Impact of Early vs. Late Cranioplasty on Hemicraniectomy Outcomes

Ketone Ester Intervention in Alcohol Use Disorder

Oropharyngeal Candidiasis (OPC) and S-ECC

Neurophysiologic Biomarkers in Rett Syndrome

PET Tau - Neurodegenerative Disease Imaging

The CArdiovascular Risk Evaluation in Men With Prostate Cancer Study (CARE-PC) Pilot Feasibility Study

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