Pembrolizumab/Vibostolimab Coformulation (MK-7684A) or Pembrolizumab/Vibostolimab Coformulation Plus Docetaxel Versus Docetaxel for Metastatic Non Small Cell Lung Cancer (NSCLC) With Progressive Disease After Platinum Doublet Chemotherapy and Immunotherapy (MK-7684A-002, KEYVIBE-002)
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ClinicalTrials.gov Identifier: NCT04725188 |
Recruitment Status :
Recruiting
First Posted : January 26, 2021
Last Update Posted : May 13, 2022
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Condition or disease | Intervention/treatment | Phase |
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Metastatic Non Small Cell Lung Cancer | Biological: Pembrolizumab/Vibostolimab coformuation Drug: Docetaxel Drug: Placebo | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 240 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Masking Description: | Arm 1 and Arm 3: Double-blind with in-house blinding Arm 2: Unblinded Open-label |
Primary Purpose: | Treatment |
Official Title: | A Phase 2, Multicenter, Randomized Study to Compare the Efficacy and Safety of MK-7684A or MK-7684A Plus Docetaxel Versus Docetaxel Monotherapy in the Treatment of Participants With Metastatic Non-small Cell Lung Cancer With Progressive Disease After Treatment With a Platinum Doublet Chemotherapy and Immunotherapy |
Actual Study Start Date : | April 20, 2021 |
Estimated Primary Completion Date : | May 17, 2023 |
Estimated Study Completion Date : | August 13, 2027 |

Arm | Intervention/treatment |
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Experimental: Arm 1: Pembrolizumab/Vibostolimab coformulation + Docetaxel
Participants receive pembrolizumab/vibostolimab (coformulation of 200 mg pembrolizumab and 200 mg vibostolimab) via intravenous IV infusion once every 3 weeks (Q3W) for up to 35 cycles up to approximately 2 years plus docetaxel 75 mg/m^2 IV infusion Q3W until discontinuation due to progressive disease or unacceptable toxicity.
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Biological: Pembrolizumab/Vibostolimab coformuation
Pembrolizumab 200 mg + vibostolimab 200 mg/20 mL vial IV infusion Q3W up to approximately 2 years.
Other Name: MK-7684A Drug: Docetaxel Docetaxel 75 mg^m2 IV infusion Q3W until discontinuation due to progressive disease or unacceptable toxicity. Docetaxel will serve as part of an experimental treatment in Arm 1, and as an active comparator in Arm 3.
Other Name: Taxotere |
Experimental: Arm 2: Pembrolizumab/Vibostolimab coformulation
Participants receive pembrolizumab/vibostolimab (coformulation of 200 mg pembrolizumab and 200 mg vibostolimab) via IV infusion Q3W for up to 35 cycles up to approximately 2 years.
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Biological: Pembrolizumab/Vibostolimab coformuation
Pembrolizumab 200 mg + vibostolimab 200 mg/20 mL vial IV infusion Q3W up to approximately 2 years.
Other Name: MK-7684A |
Active Comparator: Arm 3: Placebo + Docetaxel
Participants receive normal saline IV infusion, Q3W for up to 35 cycles up to approximately 2 years plus Docetaxel 75 mg/m^2 IV infusion Q3W until discontinuation due to progressive disease or unacceptable toxicity.
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Drug: Docetaxel
Docetaxel 75 mg^m2 IV infusion Q3W until discontinuation due to progressive disease or unacceptable toxicity. Docetaxel will serve as part of an experimental treatment in Arm 1, and as an active comparator in Arm 3.
Other Name: Taxotere Drug: Placebo Normal saline IV infusion Q3W up to approximately 2 years |
- Progression Free Survival (PFS) per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1) by Blinded Independent Central Review (BICR) Assessment [ Time Frame: Up to approximately 27 months ]PFS is defined as the time from randomization to the first documented disease progression (PD) or death due to any cause, whichever occurs first. Per RECIST 1.1, PD is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered PD. PFS as assessed by BICR will be presented
- Objective Response (OR) per RECIST 1.1 by BICR Assessment [ Time Frame: Up to approximately 27 months ]OR is defined as a confirmed complete response (CR: Disappearance of all target lesions) or a partial response (PR: At least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1. The percentage of participants who experience a CR or PR as assessed by BICR based on RECIST 1.1 will be presented.
- Overall Survival (OS) [ Time Frame: Up to approximately 77 months ]OS is defined as the time from randomization to the date of death due to any cause.
- Duration of Response (DOR) per RECIST 1.1 by BICR Assessment [ Time Frame: Up to approximately 77 months ]For participants who demonstrate a confirmed CR (Disappearance of all target lesions) or confirmed PR (At least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1, DOR is defined as the time from first documented evidence of CR or PR until disease progression (PD) or death. Per RECIST 1.1, PD is defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. The appearance of one or more new lesions was also considered PD. The DOR as assessed by BICR will be presented.
- Number of Participants Who Experienced an Adverse Event (AE) [ Time Frame: Up to approximately 77 months ]An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Number of participants who experience an AE will be reported.
- Number of Participants Who Discontinued Study Treatment Due to an AE [ Time Frame: Up to approximately 37 months ]An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Number of participants who discontinue study treatment due to an AE will be reported.

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Has a histologically or cytologically confirmed diagnosis of metastatic non-small cell lung cancer (NSCLC)
- Has confirmation that epidermal growth factor receptor (EGFR), anaplastic lymphoma kinase (ALK), or reactive oxygen species (ROS) 1 directed therapy is not indicated as primary therapy
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Has progressive disease (PD) on treatment with one prior anti-programmed cell death 1 (PD-1)/ programmed cell death ligand 1 (PD-L1) monoclonal antibody (mAb) administered either as monotherapy or in combination with other checkpoint inhibitors or other therapies
- Retreatment with the same anti-PD-L1/PD-L1 mAb is acceptable in the overall course of treatment
- Has PD as determined by the investigator after platinum doublet chemotherapy for metastatic disease
- Has measurable disease defined as at least 1 measurable lesion by computed tomography (CT) or magnetic resonance imaging (MRI), based on Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1)
- Has provided tumor tissue for PD-L1 biomarker analysis from an archival sample or newly obtained core or excisional biopsy of a tumor lesion not previously irradiated
- Has a life expectancy of at least 3 months
- Has an Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 to 1 assessed within 7 days prior to randomization
- Male participants randomized to docetaxel are eligible to participant if they agree to refrain from donating sperm, and either 1) be abstinent from heterosexual intercourse; or 2) must agree to follow contraceptive guidance as per study protocol unless confirmed to be azoospermic during the intervention period and for at least 180 days after the last dose of docetaxel
- Female participants must be not pregnant, not breastfeeding, and not be a woman of child-bearing potential (WOCBP). A WOCBP is eligible is she agrees to either use contraception, or be abstinent from heterosexual intercourse during the intervention period and for ≥120 days after the last dose of study intervention. If a WOCBP is randomized to docetaxel, she agrees not to donate eggs and either uses contraception or be abstinent from heterosexual intercourse during the treatment period and for ≥180 days after the last dose of docetaxel
- Has adequate organ function
Exclusion Criteria:
- Has known active or untreated central nervous system (CNS) metastases and/or carcinomatous meningitis
- Has a known history of an additional malignancy, except if the participant has undergone potentially curative therapy with no evidence of that disease recurrence for at least 3 years since initiation of that therapy
- Has received docetaxel as monotherapy or in combination with other therapies
- Has received previous treatment with another agent targeting the T-cell immunoreceptor with immunoglobulin [Ig] and immunoreceptor tyrosine-based inhibitory motif [ITIM] domains (TIGIT) pathway
- Has received radiotherapy within 2 weeks of start of study intervention. One week washout is permitted for palliative radiation to non-CNS disease
- Has received a live or live-attenuated vaccine within 30 days before the first dose of study intervention
- Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks before the first dose of study intervention
- Has severe hypersensitivity (≥Grade 3) to docetaxel or pembrolizumab/vibostolimab coformulation and/or any of its excipients Has an active autoimmune disease that has required systemic treatment in past 2 years
- Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy or any other form of immunosuppressive therapy within 7 days before the first dose of study intervention
- Has interstitial lung disease, or history of pneumonitis requiring steroids for treatment
- Has known history of active human immunodeficiency virus (HIV), Hepatitis B or Hepatitis C
- Has had an allogenic tissue/solid organ transplant
- Has a known psychiatric or substance abuse disorder that would interfere with the participant's ability to cooperate with the requirements of the study

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04725188
Contact: Toll Free Number | 1-888-577-8839 | Trialsites@merck.com |

Study Director: | Medical Director | Merck Sharp & Dohme LLC |
Responsible Party: | Merck Sharp & Dohme LLC |
ClinicalTrials.gov Identifier: | NCT04725188 |
Other Study ID Numbers: |
7684A-002 MK-7684A-002 ( Other Identifier: Merck ) KEYVIBE-002 ( Other Identifier: Merck ) 2020-004034-38 ( EudraCT Number ) |
First Posted: | January 26, 2021 Key Record Dates |
Last Update Posted: | May 13, 2022 |
Last Verified: | May 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf |
URL: | http://engagezone.msd.com/ds_documentation.php |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Programmed Cell Death Receptor 1 (PD-1) Programmed Cell Death Receptor Ligand 1 (PD-L1) Programmed Cell Death Receptor Ligand 2 (PD-L2) PD-1 |
PDL1 PD-L1 PD-L2 |
Lung Neoplasms Carcinoma, Non-Small-Cell Lung Disease Progression Respiratory Tract Neoplasms Thoracic Neoplasms Neoplasms by Site Neoplasms Lung Diseases Respiratory Tract Diseases Carcinoma, Bronchogenic Bronchial Neoplasms |
Disease Attributes Pathologic Processes Docetaxel Pembrolizumab Antineoplastic Agents Tubulin Modulators Antimitotic Agents Mitosis Modulators Molecular Mechanisms of Pharmacological Action Antineoplastic Agents, Immunological |