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Completed Phase 1 Interventional

Study of AGEN1571 in Participants With Advanced Solid Tumors

ClinicalTrials.gov ID: NCT05377528

Public ClinicalTrials.gov record NCT05377528. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 2, 2026, 7:56 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 1 Study Investigating AGEN1571 as a Single Agent and in Combination With a PD-1 Inhibitor and/or Botensilimab (AGEN1181) in Patients With Advanced Solid Tumors

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is an open-label, Phase 1, 2-part trial to determine recommended phase 2 doses (RP2Ds) and evaluate the safety, tolerability, pharmacokinetic, and pharmacodynamic profiles of AGEN1571 both as a monotherapy and in combination with balstilimab (PD-1 inhibitor) and/or botensilimab (2-agent combination or 3-agent combination) in participants diagnosed with advanced solid tumors. Part 1 will be the dose escalation phase to determine the RP2D of AGEN1571 monotherapy or AGEN1571 in combination with balstilimab and/or botensilimab. Part 2 will be the dose expansion phase for specific disease indications. Participants will receive study treatment for up to 2 years, or until any disease progression, unacceptable toxicity, or participant wishes to withdraw consent for any reason.

Study identification

NCT ID
NCT05377528
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1
Lead sponsor
Agenus Inc.
Industry
Enrollment
22 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jul 18, 2022
Primary completion
Dec 22, 2024
Completion
Dec 22, 2024
Last update posted
Apr 29, 2025

2022 – 2024

United States locations

U.S. sites
6
U.S. states
6
U.S. cities
6
Facility City State ZIP Site status
USC Norris Comprehensive Cancer Center Los Angeles California 90033
Sarah Cannon Research Institute at HealthONE Denver Colorado 80218
Florida Cancer Specialists Sarasota Florida 34232
Dana Farber Cancer Institute Boston Massachusetts 02215
Icahn School of Medicine at Mount Sinai New York New York 10029
Lifespan Cancer Institute Providence Rhode Island 02903

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05377528, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Apr 29, 2025 · Synced Sep 2, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT05377528 live on ClinicalTrials.gov.

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