Placebo-controlled Study Comparing Niraparib Plus Pembrolizumab Versus Placebo Plus Pembrolizumab as Maintenance Therapy in Participants With Advanced/Metastatic Non-small Cell Lung Cancer (ZEAL-1L)

  • End date
    Feb 19, 2025
  • participants needed
  • sponsor
Updated on 7 October 2022
cancer chemotherapy
lung carcinoma


This is a multicenter, randomized, double-blind, placebo-controlled study of niraparib plus pembrolizumab versus placebo plus pembrolizumab as maintenance therapy in participants with advanced or metastatic non-small cell lung cancer (NSCLC) who have achieved stable disease (SD), partial response (PR), or complete response (CR) following completion of standard of care first-line platinum-based induction chemotherapy with pembrolizumab. The primary hypotheses are: participants with confirmed diagnosis of NSCLC could benefit from niraparib plus pembrolizumab versus placebo plus pembrolizumab with respect to Progression-free survival (PFS) and Overall survival (OS).

Condition Lung Cancer, Non-Small Cell
Treatment Placebo, Pembrolizumab, Niraparib
Clinical Study IdentifierNCT04475939
Last Modified on7 October 2022


Yes No Not Sure

Inclusion Criteria

Participant must be >=18 years of age
Has a histologically or cytologically confirmed diagnosis of NSCLC without known targetable driver alteration (either non-squamous or squamous histology; mixed histology is allowed)
Has advanced (Stage IIIB not amenable to definitive chemoradiotherapy or Stage IIIC) or metastatic (Stage IV) NSCLC
Has completed at least 4 but no more than 6 cycles of standard of care first-line platinum-based induction chemotherapy with pembrolizumab
Has SD, PR, or CR of the NSCLC per Investigator's assessment after completion of 4 to 6 cycles of standard of care first-line platinum-based induction chemotherapy with pembrolizumab
Has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
Has a life expectancy of at least 12 weeks
Has adequate organ and bone marrow function
Must submit tumor specimens
Must be able to swallow and retain orally administered study treatment
A female is eligible to participate if she is not pregnant or breastfeeding, and must follow contraceptive guidance during the treatment period and 180 days afterwards
A male is eligible to participate if he agrees to contraceptive guidance and refrains from sperm donation during the intervention period and for at least 180 days after the last dose of study treatment
Is able to understand the study procedures and agrees to participate in the study by providing written informed consent. Participants must be informed that their participation is voluntary. Participants will be required to sign a statement of informed consent to participate in the study

Exclusion Criteria

Has mixed small cell lung cancer or sarcomatoid variant NSCLC
Has received prior Poly (adenosine diphosphate-ribose) polymerase (PARP) inhibitor(s) in prior lines of treatment
Has systolic blood pressure (BP) >140 millimeters of mercury (mmHg) or diastolic BP >90 mmHg
Has any clinically significant gastrointestinal abnormalities that may alter absorption such as malabsorption syndrome or major resection of the stomach and/or bowels
Has leptomeningeal disease, carcinomatous meningitis, symptomatic brain metastases, or radiographic signs of CNS hemorrhage
Has received colony-stimulating factors (granulocyte macrophage colony-stimulating factor or recombinant erythropoietin) within 4 weeks prior to the first dose of study treatment
Has an active or previously documented autoimmune or inflammatory disorder
Is receiving chronic systemic steroids (prednisone >20 mg per day) other than intermittent use of bronchodilators, inhaled steroids, or local steroid
Has other active concomitant malignancy that warrants systemic, biologic, or hormonal therapy
Is pregnant, breastfeeding, or expecting to conceive children while receiving study treatment and/or for up to 180 days after the last dose of study treatment
Has a known history of Myelodysplastic syndrome (MDS) or Acute myeloid leukemia (AML)
Has a known history of active tuberculosis
Has current active pneumonitis within 90 days of planned start of the study or a known history of interstitial lung disease, drug-related pneumonitis, or radiation pneumonitis requiring steroid treatment
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Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

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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.

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

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