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Perioperative Pembrolizumab (MK-3475) Plus Neoadjuvant Chemotherapy Versus Perioperative Placebo Plus Neoadjuvant Chemotherapy for Cisplatin-eligible Muscle-invasive Bladder Cancer (MIBC) (MK-3475-866/KEYNOTE-866)
Perioperative Pembrolizumab (MK-3475) Plus Neoadjuvant Chemotherapy Versus Perioperative Placebo Plus Neoadjuvant Chemotherapy for Cisplatin-eligible Muscle-invasive Bladder Cancer (MIBC) (MK-3475-866/KEYNOTE-866)

NCT03924856

CompletedPhase 3

Sponsor: Merck Sharp & Dohme LLC

Conditions: Bladder Cancer

Interventions: Pembrolizumab, Gemcitabine, Cisplatin, Surgery (radical cystectomy (RC) plus Pelvic Lymph Node Dissection [PLND]), Placebo

Countries: United States, Australia, Belgium, Canada, Denmark, France, Germany, Hungary

A global study to evaluate peri-operative pembrolizumab with chemotherapy versus placebo to pembrolizumab plus chemotherapy in cisplatin eligible patients.

Eligibility overview

Sex: ALL

Age: 18 Years to

Healthy volunteers: No

Study type: INTERVENTIONAL

Eligibility criteria
Inclusion Criteria:

* Have a histologically confirmed diagnosis of urothelial carcinoma (UC) / muscle invasive bladder cancer (MIBC) (T2-T4aN0M0 or T1-T4aN1M0) with predominant (≥50%) urothelial histology.
* Have clinically non-metastatic bladder cancer (N≤1 M0) determined by imaging (computed tomography (CT) or magnetic resonance imaging (MRI)) of the chest/abdomen/pelvis.
* Be deemed eligible for Radical Cystectomy (RC) + Pelvic Lymph Node Dissection (PLND).
* Have Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1.
* Have adequate organ function.
* Male and female participants are eligible to participate if they agree to the contraception use as per study protocol.

Exclusion Criteria:

* Has a known additional malignancy that is progressing or has required active anti-cancer treatment ≤3 years of study randomization with certain exceptions.
* Has received any prior systemic treatment for MIBC or non-invasive muscle bladder cancer (NMIBC - prior treatment for NMIBC with intravesical BCG/chemotherapy is permitted) or prior therapy with an anti- programmed cell death 1 (PD-1), anti-programmed cell death ligand 1/ ligand 2 (PD-L1/L2), or anti-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4).
* Has ≥N2 disease or metastatic disease (M1) as identified by imaging.
* Is cisplatin-ineligible, as defined by meeting any one of the cisplatin ineligibility criteria as per protocol.
* Has received prior systemic anticancer therapy including investigational agents within 3 years of randomization or any radiotherapy to the bladder.
* Has undergone partial cystectomy of the bladder to remove any NMIBC or MIBC.
* Has received a live or live attenuated vaccine within 30 days before the first dose of study intervention.
* Has a diagnosis of immunodeficiency or has a known history of human immunodeficiency virus (HIV) infection, Hepatitis B infection or known active Hepatitis C infection.
* Has a known psychiatric or substance abuse disorder.
* Has had an allogenic tissue/solid organ transplant.
Locations (175)
  • La Jolla, California, United States
  • Santa Monica, California, United States
  • Washington D.C., District of Columbia, United States
  • Orlando, Florida, United States
  • Fort Wayne, Indiana, United States
  • Indianapolis, Indiana, United States
  • New Orleans, Louisiana, United States
  • Scarborough, Maine, United States
  • Worcester, Massachusetts, United States
  • Detroit, Michigan, United States
  • St Louis, Missouri, United States
  • Morristown, New Jersey, United States
  • Albuquerque, New Mexico, United States
  • New York, New York, United States
  • Cleveland, Ohio, United States
  • Tulsa, Oklahoma, United States
  • Portland, Oregon, United States
  • Pittsburgh, Pennsylvania, United States
  • Houston, Texas, United States
  • Temple, Texas, United States
  • Fairfax, Virginia, United States
  • Puyallup, Washington, United States
  • Seattle, Washington, United States
  • Charles Town, West Virginia, United States
  • Port Macquarie, New South Wales, Australia
  • Sydney, New South Wales, Australia
  • Cairns, Queensland, Australia
  • Box Hill, Victoria, Australia
  • Frankston, Victoria, Australia
  • Brussels, Bruxelles-Capitale, Region de, Belgium
  • + 145 more on CT.gov