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NCT Number: NCT07011719

Study of Casdatifan and Cabozantinib Versus Placebo and Cabozantinib in Patients With Advanced Clear Cell Renal Cell Carcinoma

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.

Recruiting

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Research Site, Box Hill, Australia

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 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.

Exclusion criteria

  • 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.

NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.

Treatment and study plan

casdatifan

Drug

Administered as specified in the treatment arm

Other names: AB521

Cabozantinib

Drug

Administered as specified in the treatment arm

Placebo

Drug

Administered as specified in the treatment arm

Primary outcomes

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

    Time frame: up to approximately 33 months

Secondary outcomes

  1. Overall Survival (OS)

    Time frame: up to approximately 64 months

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

    Time frame: up to approximately 33 months

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

    Time frame: up to approximately 33 months

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

    Time frame: up to approximately 33 months

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

    Time frame: up to approximately 33 months

  6. Time to first symptom deterioration in National Comprehensive Cancer Network/Functional Assessment of Cancer Therapy-Kidney Symptom Index - Disease Related Symptoms (NFKSI-DRS) Items 1-9 sub-scale score.

    Time frame: up to approximately 33 months

Study contacts

Contact information is provided by the study sponsor or research team.

Medical Director

CONTACT

[email protected]

+1-510-462-3330

Sponsors and collaborators

Lead sponsor

Arcus Biosciences, Inc.

Industry

Registry information

Official study title

A Randomized, Double-Blind, Active-Control, Multicenter Phase 3 Trial of Casdatifan and Cabozantinib Versus Placebo and Cabozantinib in Patients With Advanced Clear Cell Renal Cell Carcinoma

Important dates

Study start
2025
Primary completion
2028
Study completion
2030
First posted
Jun 10, 2025
Registry last updated
Jul 6, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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