A Phase 3, Randomized, Double-Blind Study of MK-7684A in Combination With Etoposide and Platinum Followed by MK-7684A vs Atezolizumab in Combination With Etoposide and Platinum Followed by Atezolizumab for the First-Line Treatment of Participants With Extensive-Stage Small Cell Lung Cancer

  • End date
    Jun 7, 2027
  • participants needed
  • sponsor
    Merck Sharp & Dohme LLC
Updated on 24 October 2022
measurable disease
cancer chemotherapy


This study will evaluate the combination of a fixed dose pembrolizumab/vibostolimab co-formulation (MK-7684A) with etoposide/platinum chemotherapy followed by MK-7684A compared to the combination of atezolizumab with etoposide/platinum chemotherapy followed by atezolizumab in the first-line treatment of Extensive-Stage Small Cell Lung Cancer (ES-SCLC). The primary hypothesis is, with respect to overall survival, MK-7684A in combination with the background therapy of etoposide/platinum followed by MK-7684A, is superior to atezolizumab in combination with the background therapy of etoposide/platinum followed by atezolizumab.

Condition Small Cell Lung Carcinoma
Treatment cisplatin, etoposide, carboplatin, Saline Placebo, Atezolizumab, Pembrolizumab/Vibostolimab Co-Formulation
Clinical Study IdentifierNCT05224141
SponsorMerck Sharp & Dohme LLC
Last Modified on24 October 2022


Yes No Not Sure

Inclusion Criteria

Has histologically or cytologically confirmed diagnosis of ES-SCLC in need of first-line therapy
Has ES-SCLC defined as Stage IV (T any, N any, M1a/b/c) by the American Joint Committee on Cancer, Eighth Edition or T3-T4 due to multiple lung nodules that are too extensive or have tumor/nodal volume that is too large to be encompassed in a tolerable radiation plan
Males agree to use contraception, refrain from donating sperm, and abstain from heterosexual intercourse
Females are not pregnant or breastfeeding, is not a woman of childbearing potential (WOCBP) or is a WOCBP who uses a highly effective contraceptive method, or is abstinent from heterosexual intercourse
Has measurable disease per Response Evaluation Criteria In Solid Tumors (RECIST) 1.1
Has a predicted life expectancy of >3 months

Exclusion Criteria

Is considered a poor medical risk due to a serious, uncontrolled medical disorder or non-malignant systemic disease
Has received prior treatment for Small Cell Lung Cancer (SCLC)
Is expected to require any other form of antineoplastic therapy for SCLC while on study
Has received a live or live-attenuated vaccine within 30 days before the first dose of study intervention
Has received an investigational agent or has used an investigational device within 4 weeks prior to study intervention administration
Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior the first dose of study medication
Has a known additional malignancy that is progressing or has required active treatment within the past 3 years
Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis
Has a history of severe hypersensitivity reaction (≥Grade 3) to any study intervention and/or any of its excipients
Has an active autoimmune disease that has required systemic treatment in past 2 years
Has a history of (noninfectious) pneumonitis/interstitial lung disease that required steroids or has current pneumonitis/interstitial lung disease
Has a known history of, or active, neurologic paraneoplastic syndrome
Has an active infection requiring systemic therapy
Has a known history of human immunodeficiency virus (HIV) infection
Has a known history of Hepatitis B or known active Hepatitis C virus infection
Has had an allogenic tissue/solid organ transplant
Has had major surgery within prior 3 weeks or has not recovered adequately from toxicity and/or complications from an intervention prior to receiving the first dose of study intervention
Has symptomatic ascites or pleural effusion
Clear my responses

How to participate?

Step 1 Connect with a study center
What happens next?
  • You can expect the study team to contact you via email or phone in the next few days.
  • Sign up as volunteer  to help accelerate the development of new treatments and to get notified about similar trials.

You are contacting

Investigator Avatar

Primary Contact


Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

Learn more

If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

Learn more

Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

Learn more

Similar trials to consider


Browse trials for

Not finding what you're looking for?

Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.

Sign up as volunteer

user name

Added by • 



Reply by • Private

Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsa vel nobis alias. Quae eveniet velit voluptate quo doloribus maxime et dicta in sequi, corporis quod. Ea, dolor eius? Dolore, vel!

  The passcode will expire in None.

No annotations made yet

Add a private note
  • abc Select a piece of text from the left.
  • Add notes visible only to you.
  • Send it to people through a passcode protected link.
Add a private note