Long-term Safety and Efficacy Extension Study for Participants With Advanced Tumors Who Are Currently on Treatment or in Follow-up in a Pembrolizumab (MK-3475) Study (MK-3475-587/KEYNOTE-587)
The purpose of this study is to evaluate the long-term safety and efficacy of pembrolizumab (MK-3475) in participants from previous Merck pembrolizumab-based parent studies who transition into this extension study.
This study will consist of three phases: 1) First Course Phase, 2) Survival Follow-up Phase or 3) Second Course Phase. Each participant will transition to this extension study in one of the following three phases, depending on the study phase they were in at the completion of the parent study. Participants who were in the First Course Phase of study treatment in their parent study will enter the First Course Phase of this study and complete up to 35 doses or more every 3 weeks (Q3W) or 17 doses or more every 6 weeks (Q6W) of study treatment with pembrolizumab or a pembrolizumab-based combination according to arm assignment. Participants who were in the Follow-up Phase in the parent study (post-treatment or Survival Follow-up Phase) will enter the Survival Follow-up Phase of this study. Participants who were in the Second Course Phase in their parent study will enter Second Course Phase of this study and complete up to 17 doses Q3W or 8 doses Q6W of study treatment with pembrolizumab or a pembrolizumab-based combination according to arm assignment.
Any participant originating from a parent trial where crossover to pembrolizumab was permitted upon disease progression may be may be eligible for 35 doses as Q3W or 17 doses Q6W of pembrolizumab (approximately 2 years), if they progress while on the control arm and pembrolizumab is approved for the indication in the country where the potential eligible crossover participant is being evaluated.
A Multicenter, Open-label, Phase 3 Study to Evaluate the Long-term Safety and Efficacy in Participants Who Are Currently on Treatment or in Follow-up in Studies That Include Pembrolizumab
You can join if…
Open to people ages 18 years and up
- Treated on the parent pembrolizumab studies established by the Sponsor as MK-3475-587 ready
Currently receiving pembrolizumab or in a follow-up phase
Additional eligibility criteria for participants who enter Second Course Phase once they are enrolled on MK-3475-587:
- Has not received any anticancer systemic treatment since the last dose of pembrolizumab or a pembrolizumab-based combination in First Course Phase
- Has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
- Demonstrates adequate organ function
- Have resolution of any toxic effect(s) of First Course Phase trial treatment with pembrolizumab or a pembrolizumab-based combination to Grade 1 or less (except alopecia) before trial treatment in Second Course Phase is started. If participant received major surgery or radiation therapy of >30 Gray (Gy), they must have recovered from the toxicity and/or complications of the intervention.
- A female participant is eligible to enroll if she is not pregnant, not breastfeeding, and ≥1 of the following conditions applies: A woman of childbearing potential (WOCBP) who agrees to use contraception during the study treatment period and for ≥120 days (corresponding to time needed to eliminate any study combination treatment(s) plus 30 days (a menstruation cycle) for study treatments with risk of genotoxicity.
You CAN'T join if...
-There are no exclusion criteria to participate in MK-3475-587.
Participants are excluded from entering Second Course trial treatment once they are enrolled on MK-3475-587 if any of the following criteria applies:
- Has severe hypersensitivity (≥ Grade 3) to pembrolizumab and/or any of its excipients
- Has received a live vaccine within 30 days prior to the first dose of Second Course Phase trial treatment
- 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 to the Cycle 1 Day 1 of Second Course Phase
- Has a known additional malignancy that is progressing or requires active treatment. Exceptions include early stage cancers (carcinoma in situ or Stage 1) treated with curative intent, melanoma (non-ulcerated, thin primary), basal cell carcinoma of the skin, squamous cell carcinoma of the skin, in situ cervical cancer, or in situ breast cancer that has undergone potentially curative therapy.
- Has known active central nervous system metastases and/or carcinomatous meningitis
- Has an active autoimmune disease that has required systemic treatment in the past 2 years (i.e., use of disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy (e.g. thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is not considered a form of systemic treatment and is allowed.
- Has a history of (non-infectious) pneumonitis that required steroids or has current pneumonitis. Note: Participants that experienced pneumonitis during First Course that did not meet the criteria for permanent discontinuation are eligible.
- Non-small cell lung cancer (NSCLC) participants only: Has interstitial lung disease
- Has an active infection requiring systemic therapy
- Has a known history of human immunodeficiency virus (HIV) infection.
- Has a known history of or is positive for hepatitis B or hepatitis C. For parent studies where inclusion of participants with hepatitis was permitted, MK-3475-587 will follow the parent study eligibility criteria for hepatitis.
- Is pregnant or breastfeeding or expecting to conceive or father children within the projected duration of the study, starting with the Second Course Phase eligibility Visit through 120 days after the last dose of study treatment.
- Has severe cardiovascular disease, i.e., arrhythmias, requiring chronic treatment, congestive heart failure (New York Heart Association Class III or IV) or symptomatic ischemic heart disease.
- Has hepatic decompensation (Child-Pugh score >6 [class B and C])
- Has uncontrolled thyroid dysfunction
- Has uncontrolled diabetes mellitus
- Has had an allogeneic tissue/solid organ transplant
- Has a known history of active tuberculosis (TB; Bacillus tuberculosis)
- UCSF Helen Diller Family Comprehensive Cancer Center ( Site 0004)
accepting new patients
San Francisco California 94158 United States
- California Cancer Associates for Research & Excellence ( Site 0016)
in progress, not accepting new patients
Fresno California 93720 United States
Please contact me about this study
We will not share your information with anyone other than the team in charge of this study. Submitting your contact information does not obligate you to participate in research.
The study team should get back to you in a few business days.
You will also receive an email with next steps. Check your junk/spam folder if needed.
If you do not hear from the study team, please call 888-689-8273 and tell them you’re interested in study number NCT03486873.