A Trial of Belzutifan (PT2977, MK-6482) in Combination With Cabozantinib in Patients With Clear Cell Renal Cell Carcinoma (ccRCC) (MK-6482-003)

December 18, 2024 updated by: Peloton Therapeutics, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)

A Phase 2 Trial of PT2977 in Combination With Cabozantinib in Patients With Advanced Clear Cell Renal Cell Carcinoma

This is an open-label Phase 2 study which will evaluate the efficacy and safety of belzutifan in combination with cabozantinib in participants with advanced ccRCC. Belzutifan and cabozantinib will be administered orally once daily.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
118

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Los Angeles, California, United States, 90033
        • USC Norris Comprehensive Cancer Center ( Site 0060)
      • Los Angeles, California, United States, 90048
        • Cedars Sinai Medical Center Samuel Oschin Comp. Cancer Institute ( Site 0003)
    • Florida
      • Miami, Florida, United States, 33136
        • Sylvester Comprehensive Cancer Center ( Site 0023)
    • Massachusetts
      • Boston, Massachusetts, United States, 02215
        • Dana Farber Cancer Center ( Site 0006)
    • Michigan
      • Detroit, Michigan, United States, 48201
        • Karmanos Cancer Institute ( Site 0033)
    • Tennessee
      • Chattanooga, Tennessee, United States, 37404
        • Tennessee Oncology, PLLC ( Site 0024)
      • Nashville, Tennessee, United States, 37203
        • Tennessee Oncology, PLLC ( Site 0001)
    • Texas
      • Dallas, Texas, United States, 75246
        • Texas Oncology-Baylor Charles A. Sammons Cancer Center ( Site 0010)
    • Washington
      • Seattle, Washington, United States, 98104
        • Swedish Cancer Institute ( Site 0018)
      • Seattle, Washington, United States, 98109
        • Seattle Cancer Care Alliance/Univ of Washington Medical Center ( Site 0035)

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Has locally advanced or metastatic RCC with predominantly clear cell subtype
  • Has at least one measurable lesion as defined by RECIST version 1.1
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0-1

  • Has adequate organ function defined as follows:

    • Absolute neutrophil count ≥ 1,000/µL, hemoglobin level ≥ 10 g/dL and platelet count ≥ 100,000/µL without transfusion or growth factor support within 2 weeks prior to obtaining the hematology values at screening;
    • Serum creatinine level ≤ 2.0 × upper limit of normal (ULN)
    • Transaminase levels (AST/ALT) ≤ 3.0 × upper limit of normal (ULN); total bilirubin (TBILI) ≤ 1.5 mg/dL in the absence of Gilbert's disease *Cohort 1: Participants must not have received prior systemic therapy for advanced or metastatic ccRCC
  • Cohort 2: Participants must have received prior immunotherapy and no more than two prior treatments for advanced or metastatic ccRCC

Exclusion Criteria:

  • Has received prior treatment with belzutifan or other HIF2α inhibitors
  • Has received prior treatment with cabozantinib
  • Has had radiation therapy for bone metastases within two weeks of starting study drug
  • Has a history of untreated brain metastases or history of leptomeningeal disease or spinal cord compression
  • Has failed to recover from the reversible effects of prior anticancer therapy
  • Has uncontrolled or poorly controlled hypertension
  • Is receiving anticoagulant therapy
  • Has had any major cardiovascular event within 6 months prior to study drug administration
  • Has any other clinically significant cardiac, respiratory, or other medical or psychiatric condition that might interfere with participation in the trial or interfere with the interpretation of trial results
  • Has had major surgery within 3 months before first study drug administration
  • Has an active infection requiring systemic treatment
  • Is participating in another therapeutic clinical trial

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Belzutifan + Cabozantinib: Treatment Naïve (Cohort 1)
Naïve participants will receive 120 mg belzutifan and 60 mg cabozantinib orally once daily (QD) at the same time.
Drug: Belzutifan
Belzutifan tablets administered orally.
Other Names:
  • WELIREG™
  • PT2977, MK-6482
Drug: Cabozantinib
Cabozantinib tablets administered orally.
Other Names:
  • CABOMETYX®
Experimental: Belzutifan + Cabozantinib: Prior Immunotherapy (Cohort 2)
Participants who have received prior immunotherapy will receive 120 mg belzutifan and 60 mg cabozantinib orally QD at the same time.
Drug: Belzutifan
Belzutifan tablets administered orally.
Other Names:
  • WELIREG™
  • PT2977, MK-6482
Drug: Cabozantinib
Cabozantinib tablets administered orally.
Other Names:
  • CABOMETYX®

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Overall Response Rate (ORR)
Time Frame: Up to approximately 2 years
ORR is defined as the percentage of participants with a best confirmed response of Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions) as determined by the investigator using Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1).
Up to approximately 2 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Progression Free Survival (PFS)
Time Frame: Up to approximately 2 years
PFS is defined as the interval from the start of study treatment until the earlier of the first documentation of disease progression determined by RECIST 1.1 or death from any cause.
Up to approximately 2 years
Duration of Response (DOR)
Time Frame: Up to approximately 2 years
DOR is defined as the interval from the first documentation of response, as determined by RECIST 1.1, to the earlier of the first documentation of disease progression or death from any cause, and calculated for participants with a best confirmed response of CR (disappearance of all target lesions) or PR (≥30% decrease in the sum of diameters of target lesions).
Up to approximately 2 years
Time to Response (TTR)
Time Frame: Up to approximately 2 years
TTR is defined as the interval from the start of study treatment to the first documentation of a response, as determined by RECIST 1.1, and calculated for participants with a best confirmed response of CR or PR.
Up to approximately 2 years
Overall Survival (OS)
Time Frame: Up to approximately 2 years
OS is defined as the interval from the start of treatment to the death of the participant from any cause.
Up to approximately 2 years
Number of participants experiencing an Adverse Event (AE)
Time Frame: Up to approximately 2 years
An AE is defined as any untoward medical occurrence in a participant regardless of its causal relationship to study treatment. An AE can be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of the study drug, whether or not it is considered to be study drug related. Included in this definition are any newly occurring events and any previous condition that has increased in severity or frequency since the administration of study drug.
Up to approximately 2 years
Number of participants discontinuing study treatment due to an Adverse Event (AE)
Time Frame: Up to approximately 2 years
An AE is defined as any untoward medical occurrence in a participant regardless of its causal relationship to study treatment. An AE can be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of the study drug, whether or not it is considered to be study drug related. Included in this definition are any newly occurring events and any previous condition that has increased in severity or frequency since the administration of study drug.
Up to approximately 2 years
Belzutifan Plasma Concentration
Time Frame: Weeks 1 and 4: pre-dose, 2 and 6 hours post-dose
Blood samples for the determination of belzutifan concentration will be collected at pre-specified timepoints before and after treatment administration.
Weeks 1 and 4: pre-dose, 2 and 6 hours post-dose
Belzutifan Metabolite Plasma Concentration
Time Frame: Weeks 1 and 4: pre-dose, 2 and 6 hours post-dose
Blood samples for the determination of belzutifan metabolite concentration will be collected at pre-specified timepoints before and after treatment administration.
Weeks 1 and 4: pre-dose, 2 and 6 hours post-dose
Cabozantinib Plasma Concentration
Time Frame: Weeks 1 and 4: pre-dose, 2 and 6 hours post-dose
Blood samples for the determination of cabozantinib concentration will be collected at pre-specified timepoints before and after treatment administration.
Weeks 1 and 4: pre-dose, 2 and 6 hours post-dose

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Peloton Therapeutics, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Medical Director, Merck Sharp & Dohme LLC

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 27, 2018

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 26, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 26, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 3, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 14, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 16, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 18, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 6482-003
  • PT2977-201 (Other Identifier: Peloton)
  • MK-6482-003 (Other Identifier: MSD)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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