Immunologic Determinants of Response to Pembrolizumab (MK-3475) in Advanced Melanoma (MK-3475-161/KEYNOTE-161)

NCT ID: NCT03407170

Last Updated: 2020-07-15

Basic Information

• Recruitment Status: TERMINATED
• Clinical Phase: PHASE2
• Total Enrollment: 1 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2018-06-28
• Study Completion Date: 2019-08-14

Brief Summary

In this study, participants with advanced melanoma will be treated with pembrolizumab (MK-3475) and their tumors and blood will be analyzed for changes related to pembrolizumab therapy.

The primary hypotheses are that participants who respond to pembrolizumab have:

1. a higher fraction of cytotoxic tumor-infiltrating T-lymphocytes (FCT) at baseline compared to those who do not respond to pembrolizumab

2. a higher fold-increase in FCT compared to baseline than those who do not respond to pembrolizumab

3. a higher Average Specific Cytotoxic T-lymphocyte Frequency Ratio (ASCTFR) compared to those who do not respond to pembrolizumab

Conditions

Advanced Melanoma

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Pembrolizumab

Participants receive pembrolizumab 200 mg by intravenous (IV) infusion every 3 weeks (Q3W) for up to 24 months

Group Type: EXPERIMENTAL

pembrolizumab

Intervention Type: BIOLOGICAL

200 mg by IV infusion Q3W for up to 24 months

Interventions

pembrolizumab

200 mg by IV infusion Q3W for up to 24 months

Intervention Type: BIOLOGICAL

Other Intervention Names

KEYTRUDA®; MK-3475

Eligibility Criteria

Inclusion Criteria

• Has a histologically confirmed diagnosis of unresectable stage III or metastatic melanoma not amenable to local therapy
• Has testing for a BRAF mutation prior to study entry
• Has measurable disease per RECIST 1.1 as assessed by the investigator/radiology
• Has resolution of toxic effect(s) of the most recent prior chemotherapy to Grade 1 or less (except alopecia). If the participant received major surgery or radiation therapy of >30 Gray units, they must have recovered from the toxicity and/or complications from the intervention
• Has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 within 10 days of study start
• A female participant is eligible to participate if she is not pregnant or breastfeeding, and at least one of the following conditions applies: is not a woman of childbearing potential (WOCBP) OR is a WOCBP and agrees to use a contraceptive method, consistent with local regulations regarding the methods of contraception for those participating in clinical studies, during the treatment period and for at least 120 days after the last dose of study treatment
• A male participant is eligible to participate if he agrees not to donate sperm PLUS to be abstinent from heterosexual intercourse as their preferred and usual lifestyle OR agree to use contraception, consistent with local regulations regarding the methods of contraception for those participating in clinical studies, during the treatment period and for at least 120 days after the last dose of study treatment

Exclusion Criteria

• Has disease that is suitable for local therapy administered with curative intent
• Has a history of interstitial lung disease
• Has a positive pregnancy test within 72 hours before the first dose of study therapy
• Has received prior therapy with an anti-Programmed Cell Death Protein 1 (PD-1), anti-Programmed Cell Death-Ligand 1 (PD-L1), anti-Programmed Cell Death-Ligand 2 (PD-L2) agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (eg, cytotoxic T-lymphocyte-associated protein 4 [CTLA-4], OX-40, CD137)
• Has received prior systemic anti-cancer therapy including investigational agents within 4 weeks prior to study start
• Has received prior radiotherapy within 2 weeks of start of study therapy
• Has received a live vaccine within 30 days prior to the first dose of study therapy
• Has received transfusion of blood products (including platelets or red blood cells) or administration of colony stimulating factors (including granulocyte colony stimulating factor [G-CSF], granulocyte macrophage colony stimulating factor [GMCSF] or recombinant erythropoietin) within 4 weeks prior to study start
• 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 therapy
• 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 therapy
• Has a known additional malignancy that is progressing or has required active treatment within the past 3 years with the exception of basal cell and squamous cell carcinoma of the skin, transitional cell carcinoma of urothelial cancer, or carcinoma in situ (eg, breast carcinoma, cervical cancer in situ) that have undergone potentially curative therapy
• Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis
• Has severe hypersensitivity (≥Grade 3) to pembrolizumab and/or any of its excipients
• Has an active autoimmune disease that has required systemic treatment in past 2 years
• 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
• 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 known psychiatric or substance abuse disorders that would interfere with cooperating with the requirements of the study
• Is pregnant or breastfeeding or expecting to conceive or father children starting with the screening visit through 120 days after the last dose of study therapy

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Merck Sharp & Dohme LLC

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Medical Director

Role: STUDY_DIRECTOR

Merck Sharp & Dohme LLC

Locations

Massachusetts General Hospital ( Site 0102)

Boston, Massachusetts, United States

Dana Farber Cancer Institute ( Site 0101)

Boston, Massachusetts, United States

Countries

United States

Provided Documents

Document Type: Study Protocol and Statistical Analysis Plan

View Document

Other Identifiers

MK-3475-161

Identifier Type: OTHER

Identifier Source: secondary_id

KEYNOTE-161

Identifier Type: OTHER

Identifier Source: secondary_id

3475-161

Identifier Type: -

Identifier Source: org_study_id