HomeTrialNCT05536141
NCT05536141Phase 1RECRUITING

A Phase 1 Study of AB521 Monotherapy and Combination Therapies in Renal Cell Carcinoma and Other Solid Tumors

Study Summary

The purpose of this study is to evaluate the safety and tolerability of: * casdatifan when taken alone in participants with advanced solid tumor malignancies and clear cell renal cell carcinoma (ccRCC) during the dose escalation stage; and * casdatifan monotherapy and casdatifan in combination with cabozantinib or zimberelimab or zimberelimab and ipilimumab in participants with ccRCC in the dose expansion stage.

View on ClinicalTrials.gov ↗
Study Details
Enrollment362 participants
Primary Completion
Lead SponsorArcus Biosciences, Inc.
Data Retrieved2026-04-11 02:54:25.662724+00:00
What This Trial Means for Biotech Investors
Trial Phase Context

Phase 1 trials primarily test safety and dosing in a small number of participants (typically 20–100). Results do not yet speak to efficacy. FDA approval is typically many years away from this stage.

Status & Expected Data

Currently recruiting: the trial is enrolling patients. A data readout is not expected until after enrollment closes and the follow-up period is complete.

Enrolled: 362 participants
Sponsor Catalyst Profile

Arcus Biosciences (ARQT) is the sponsoring company for this trial. BiotechSign currently grades this company F (31/100) based on composite catalyst signals across its full pipeline. This trial is one data point in that overall catalyst picture.

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