NCT07011719

Brief Summary

The purpose of the study is to evaluate the progression-free survival (PFS) of casdatifan versus placebo when each is given in combination with cabozantinib in adult patients with confirmed advanced or metastatic clear cell Renal Cell Carcinoma who have experienced progression on or after prior anti-PD-1 or anti-PD-L1 immunotherapy.

Trial Health

83
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
720

participants targeted

Target at P75+ for phase_3

Timeline
56mo left

Started Sep 2025

Longer than P75 for phase_3

Geographic Reach
9 countries

44 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress13%
Sep 2025Dec 2030

First Submitted

Initial submission to the registry

June 2, 2025

Completed
8 days until next milestone

First Posted

Study publicly available on registry

June 10, 2025

Completed
3 months until next milestone

Study Start

First participant enrolled

September 8, 2025

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2028

Expected
2.7 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2030

Last Updated

April 28, 2026

Status Verified

June 1, 2025

Enrollment Period

2.6 years

First QC Date

June 2, 2025

Last Update Submit

April 24, 2026

Conditions

Keywords

CasdatifanMetastatic Clear Cell Renal Cell CarcinomaAdvanced Clear Cell Renal Cell CarcinomaKidney CancerPEAK-1AB521ccRCC

Outcome Measures

Primary Outcomes (1)

  • Progression-free Survival (PFS) as assessed by Blinded Independent Central Review (BICR) according to RECIST 1.1

    up to approximately 33 months

Secondary Outcomes (6)

  • Overall Survival (OS)

    up to approximately 64 months

  • Objective Response Rate (ORR) as assessed by Blinded Independent Central Review (BICR) according to RECIST 1.1

    up to approximately 33 months

  • Duration of Response (DOR) as assessed by Blinded Independent Central Review (BICR) according to RECIST 1.1

    up to approximately 33 months

  • Disease Control Rate (DCR) by Blinded Independent Central Review (BICR)

    up to approximately 33 months

  • The incidence and severity of treatment-emergent adverse events (TEAEs) and treatment-emergent serious adverse events (SAEs)

    up to approximately 33 months

  • +1 more secondary outcomes

Study Arms (2)

Arm A (Experimental Arm)

EXPERIMENTAL

Casdatifan and cabozantinib taken orally

Drug: CasdatifanDrug: Cabozantinib

Arm B (Comparator Arm)

PLACEBO COMPARATOR

Placebo and cabozantinib taken orally

Drug: CabozantinibDrug: Placebo

Interventions

Administered as specified in the treatment arm

Also known as: AB521
Arm A (Experimental Arm)

Administered as specified in the treatment arm

Arm A (Experimental Arm)Arm B (Comparator Arm)

Administered as specified in the treatment arm

Arm B (Comparator Arm)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Unresectable and measurable locally advanced or metastatic renal cell carcinoma with a primary clear cell component.
  • A Karnofsky Performance Status (KPS) score ≥ 80%
  • At least 1 target lesion measurable by computed tomography/magnetic resonance imaging per RECIST 1.1, not within a field of prior radiation therapy.
  • Adequate organ and marrow function, ≤ 1 week prior to randomization.
  • Women of childbearing potential (WOCBP) must have a negative serum pregnancy test.

You may not qualify if:

  • Received prior treatment with a HIF-2α inhibitor or cabozantinib.
  • Other prior malignancy active within the previous year except for locally curable cancers that have been apparently cured.
  • Ongoing clinically significant toxicities related to any prior anticancer treatment, or toxicities Grade ≥ 3 per National Cancer Institute Common Terminology Criteria for Adverse Events, version 5.0 (NCI CTCAE v5.0) regardless of relatedness to prior anticancer therapies.
  • Uncontrolled or poorly controlled hypertension, defined as a sustained blood pressure \> 150 mmHg systolic or \> 90 mmHg diastolic despite optimal antihypertensive treatment.
  • History of leptomeningeal disease or spinal cord compression.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (44)

City of Hope - Phoenix Cancer Center

Goodyear, Arizona, 85338, United States

RECRUITING

Mayo Clinic - Phoenix

Phoenix, Arizona, 85054, United States

RECRUITING

City Of Hope National Medical Center

Duarte, California, 91010, United States

RECRUITING

University of California San Diego Moores Cancer Center

La Jolla, California, 92103, United States

RECRUITING

UCLA Hematology Oncology - 100 Med Plaza

Los Angeles, California, 90095, United States

RECRUITING

University of California San Diego Moores Cancer Center

San Diego, California, 92103, United States

RECRUITING

Yale University

New Haven, Connecticut, 06519, United States

RECRUITING

Mayo Clinic in Florida

Jacksonville, Florida, 32224, United States

RECRUITING

Piedmont Cancer Institute OneOncology

Atlanta, Georgia, 30318, United States

RECRUITING

Emory University - Atlanta

Atlanta, Georgia, 30322, United States

RECRUITING

City of Hope Cancer Center Atlanta

Newnan, Georgia, 30265, United States

RECRUITING

City of Hope - Chicago Cancer Center

Zion, Illinois, 60099, United States

RECRUITING

Indiana University Melvin and Bren Simon Cancer Center

Indianapolis, Indiana, 46202, United States

RECRUITING

Norton Cancer Institute PARENT

Louisville, Kentucky, 40207, United States

RECRUITING

Massachusetts General Hospital

Boston, Massachusetts, 02114, United States

RECRUITING

Dana-Farber Cancer Institute

Boston, Massachusetts, 02215, United States

RECRUITING

Mayo Clinic

Rochester, Minnesota, 55905, United States

RECRUITING

Washington University School of Medicine

St Louis, Missouri, 63110, United States

RECRUITING

The University of Nebraska Medical Center

Omaha, Nebraska, 68198, United States

RECRUITING

University of Rochester Medical Center

Rochester, New York, 14642, United States

RECRUITING

UNC Hospitals

Chapel Hill, North Carolina, 27514, United States

RECRUITING

Cleveland Clinic Foundation

Cleveland, Ohio, 44106, United States

RECRUITING

University Hospitals Cleveland Medical Center

Cleveland, Ohio, 44106, United States

RECRUITING

Compass Oncology, OR

Portland, Oregon, 97212, United States

RECRUITING

SCRI Oncology Partners

Nashville, Tennessee, 37203, United States

RECRUITING

Vanderbilt

Nashville, Tennessee, 37232, United States

RECRUITING

Texas Tech University Health Science Center

Lubbock, Texas, 79430, United States

RECRUITING

The University of Utah - Huntsman Cancer Institute (HCI)

Salt Lake City, Utah, 84112, United States

RECRUITING

CHU Brest - Hôpital Morvan

Brest, France

RECRUITING

Hopital Saint Eloi

Montpellier, France

RECRUITING

Institut Gustave Roussy

Villejuif, France

RECRUITING

Krankenhaus Nordwest GmbH

Frankfurt, Germany

RECRUITING

Universitaetsklinikum Halle (Saale)

Halle, Germany

RECRUITING

Universitaetsmedizin Rostock

Rostock, Germany

RECRUITING

Radboudumc

Nijmegen, Netherlands

RECRUITING

Isala

Zwolle, Netherlands

RECRUITING

Pratia MCM Krakow

Krakow, Poland

RECRUITING

S.C. Sigmedical Services SRL

Suceava, Romania

RECRUITING

S.C Oncomed S.R.L

Timișoara, Romania

RECRUITING

CHA Bundang Medical Center, CHA University

Seongnam, South Korea

RECRUITING

Severance Hospital, Yonsei University Health System

Seoul, South Korea

RECRUITING

Hospital Clinic de Barcelona

Barcelona, Spain

RECRUITING

Royal Devon and Exeter Hospital (Wonford)

Exeter, United Kingdom

RECRUITING

Barts Hospital

London, United Kingdom

RECRUITING

MeSH Terms

Conditions

Clear-cell metastatic renal cell carcinomaKidney Neoplasms

Interventions

cabozantinib

Condition Hierarchy (Ancestors)

Urologic NeoplasmsUrogenital NeoplasmsNeoplasms by SiteNeoplasmsFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesKidney DiseasesUrologic DiseasesMale Urogenital Diseases

Study Officials

  • Medical Director

    Arcus Biosciences

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 2, 2025

First Posted

June 10, 2025

Study Start

September 8, 2025

Primary Completion (Estimated)

April 1, 2028

Study Completion (Estimated)

December 1, 2030

Last Updated

April 28, 2026

Record last verified: 2025-06

Data Sharing

IPD Sharing
Will share

Arcus will provide access to individual de-identified participant data and related study documents (e.g., protocol, Statistical Analysis Plan \[SAP\], Clinical Study Report \[CSR\]) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions.

Shared Documents
STUDY PROTOCOL, SAP, CSR
More information

Locations