Biomarkers of Response to Pembrolizumab Combined With Chemotherapy in Non-Small Cell Lung Cancer (KEYNOTE-782, MK-3475-782)



Status:Recruiting
Conditions:Lung Cancer, Lung Cancer, Cancer
Therapuetic Areas:Oncology
Healthy:No
Age Range:18 - Any
Updated:3/24/2019
Start Date:October 30, 2018
End Date:July 14, 2021
Contact:Toll Free Number
Email:Trialsites@merck.com
Phone:1-888-577-8839

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A Phase II Trial to Investigate Genetic Markers of Response to Pembrolizumab (MK-3475, SCH 900475) Combined With Chemotherapy as a First-line Treatment for Non-Small Cell Lung Cancer (KEYNOTE-782)

Participants with Stage IV nonsquamous non-small cell lung cancer (NSCLC) without prior
systemic treatment will be treated with standard of care pembrolizumab combined with
platinum-doublet chemotherapy for 4 cycles, then pembrolizumab plus pemetrexed maintenance
for up to 31 additional cycles. The platinum doublet would be pemetrexed plus the
investigator's choice of either cisplatin or carboplatin. The primary hypothesis is to
evaluate if total baseline tumor mutation burden (TMB) in circulating free DNA (cfDNA) is
predictive of objective response per Response Evaluation Criteria in Solid Tumors Version 1.1
(RECIST 1.1) by the investigator by estimating the level of association.


Inclusion Criteria:

- Has a histologically-confirmed or cytologically-confirmed diagnosis of stage IV (M1a,
M1b, or M1c [AJCC 8th edition]) nonsquamous NSCLC.

- Has confirmation that epidermal growth factor receptor (EGFR-), B isoform of rapidly
accelerated fibrosarcoma (B-RAF)-, c-ros oncogene 1 (ROS1-), or anaplastic lymphoma
kinase (ALK-) directed therapy is not indicated (documentation of absence of
tumor-activating EGFR or B-RAF mutations, AND absence of ALK or ROS1 gene
rearrangements OR presence of a Kirsten RAt Sarcoma virus oncogene; [KRAS] mutation).

- Has measurable disease based on RECIST 1.1 as determined by the local site
investigator/radiology assessment. Target lesions situated in a previously irradiated
area are considered measurable if progression has been demonstrated in such lesions.

- Has not received prior systemic treatment for their advanced/metastatic NSCLC.
Participants who received adjuvant or neoadjuvant therapy are eligible if the
adjuvant/neoadjuvant therapy was completed at least 12 months prior to the development
of metastatic disease.

- Has provided an evaluable archival tumor tissue sample or newly obtained core or
excisional biopsy of a tumor lesion (that was not previously irradiated) for biomarker
analysis (Fine Needle Aspiration [FNA] samples will not be accepted). Formalin-fixed,
paraffin embedded (FFPE) tissue blocks are preferred to slides. Newly obtained
biopsies are preferred to archived tissue.

- Has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 within
10 days prior to the first dose of study treatment.

- A male participant must agree to use contraception through the end of treatment and
for at least 120 days, and refrain from donating sperm during this period.

- A female participant is eligible to participate if she is not pregnant, not
breastfeeding, and if participant is a woman of childbearing potential (WOCBP), agrees
to follow the contraceptive guidance as provided in the protocol through the end of
treatment.

- Has adequate organ function.

Exclusion Criteria:

- Has predominantly squamous cell histology NSCLC. Mixed tumors will be categorized by
the predominant cell type.

- Has small cell elements present in NSCLC tumor.

- A WOCBP who has a positive urine pregnancy test within 72 hours prior to treatment
allocation.

- Has clinically active diverticulitis, intra-abdominal abscess, gastrointestinal (GI)
obstruction, peritoneal carcinomatosis.

- Has a known history of prior malignancy except if the participant has undergone
potentially curative therapy with no evidence of that disease recurrence for 2 years
since initiation of that therapy.

- Has symptomatic ascites or pleural effusion. A participant who is clinically stable
following treatment for these conditions (including therapeutic thoraco- or
paracentesis) is eligible.

- If participant received major surgery, they must have recovered adequately from the
toxicity and/or complications from the intervention prior to starting study
intervention.

- Has received prior radiotherapy within 2 weeks of start of study intervention.
Participants must have recovered from all radiation-related toxicities, not require
corticosteroids, and not have had radiation pneumonitis. A 1-week washout is permitted
for palliative radiation (≤2 weeks of radiotherapy) to non-central nervous system
disease.

- Has received prior therapy with a multiple programmed cell death 1 (PD-1)/ (PD-1)
receptor/programmed cell death ligand 1 (PD-L1) receptor inhibitor.

- Is expected to require any other form of antineoplastic therapy while on study
(including maintenance therapy with another agent for NSCLC, radiation therapy, and/or
surgical resection).

- Has received a live vaccine within 30 days prior to treatment.

- Has severe hypersensitivity (≥Grade 3) to pembrolizumab and/or any of its excipients
or to another monoclonal antibody.

- Has a known sensitivity to any component of cisplatin, carboplatin or pemetrexed.

- Has active autoimmune disease that has required systemic treatment in past 2 years
(i.e., with use of disease-modifying agents, corticosteroids, or immunosuppressive
drugs).

- Is on chronic systemic steroids. Participants with asthma that require intermittent
use of bronchodilators, inhaled steroids, or local steroid injections would not be
excluded from the study.

- Is unable or unwilling to take folic acid or vitamin B12 supplementation.

- Is currently participating in or has participated in a study of an investigational
agent or has used an investigational device within 4 weeks prior to the first dose of
study intervention.

- Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy
(in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of
immunosuppressive therapy within 7 days prior the first dose of study drug.

- Has a known additional malignancy that is progressing or has required active treatment
within the past 2 years. Note: Participants with basal cell carcinoma of the skin,
squamous cell carcinoma of the skin, or carcinoma in situ (eg, breast carcinoma,
cervical cancer in situ) that have undergone potentially curative therapy are not
excluded.

- Has known active central nervous system (CNS) metastases and/or carcinomatous
meningitis.

- Has a history of (non-infectious) pneumonitis that required steroids or has current
pneumonitis.

- Has an active infection requiring systemic therapy.

- Has a known history of human immunodeficiency virus (HIV) infection. No HIV testing is
required unless mandated by local health authority.

- Has a known history of Hepatitis B (defined as Hepatitis B surface antigen [HBsAg]
reactive) or known active Hepatitis C virus (defined as HCV RNA [qualitative] is
detected) infection.

- Has a history or current evidence of any condition, therapy, or laboratory abnormality
that might confound the results of the study, interfere with the participant's
participation for the full duration of the study, or is not in the best interest of
the participant to participate, in the opinion of the treating investigator.

- Has a known psychiatric or substance abuse disorder that would interfere with
cooperating with the requirements of the study.

- Is pregnant or breastfeeding or expecting to conceive or father children within the
projected duration of the study, starting with the screening visit through 120 days
after the last dose of study intervention.

- Has had an allogenic tissue/solid organ transplant.
We found this trial at
4
sites
Baltimore, Maryland 21237
Phone: 443-777-7364
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Aurora, Colorado 80045
Phone: 720-848-0676
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Detroit, Michigan 48202
Phone: 313-916-2635
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Kingston, Ontario
Phone: 61354966666641
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