Testing MK-3475 (Pembrolizumab) After Surgery for Localized Muscle-Invasive Bladder Cancer and Locally Advanced Urothelial Cancer (NCT03244384)
Phase III Randomized Adjuvant Study of Pembrolizumab in muScle invaSive and locAlly aDvanced urOthelial caRcinoma (AMBASSADOR) Versus Observation
🩺 Plain-English Summary (8th-Grade Level)
This phase III trial studies how well pembrolizumab works in treating patients with bladder cancer that has spread into the deep muscle of the bladder wall (muscle-invasive) or urothelial cancer that has spread from where it started to nearby tissue or lymph nodes (locally advanced). Monoclonal antibodies recognizing and blocking checkpoint molecules can enhance the patient's immune response and therefore help fight cancer. Pembrolizumab is one of the monoclonal antibodies that block the PD-1 axis and can interfere with the ability of tumor cells to grow.
Who can join: Review the eligibility criteria below.
Location: University of Alabama at Birmingham Cancer Center — Birmingham, Alabama
Age range: 18 Years
🧪 Interventions in This Study
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria ↗
📍 All Participating Trial Locations (914 Sites)
Showing the first 25 of 914 sites.
- University of Alabama at Birmingham Cancer Center — Birmingham, Alabama
- Anchorage Associates in Radiation Medicine — Anchorage, Alaska
- Anchorage Radiation Therapy Center — Anchorage, Alaska
- Alaska Breast Care and Surgery LLC — Anchorage, Alaska
- Alaska Oncology and Hematology LLC — Anchorage, Alaska
- Alaska Women's Cancer Care — Anchorage, Alaska
- Anchorage Oncology Centre — Anchorage, Alaska
- Katmai Oncology Group — Anchorage, Alaska
- Providence Alaska Medical Center — Anchorage, Alaska
- Fairbanks Memorial Hospital — Fairbanks, Alaska
- CTCA at Western Regional Medical Center — Goodyear, Arizona
- Kingman Regional Medical Center — Kingman, Arizona
- Cancer Center at Saint Joseph's — Phoenix, Arizona
- Mayo Clinic Hospital in Arizona — Phoenix, Arizona
- Mayo Clinic in Arizona — Scottsdale, Arizona
- Mercy Hospital Fort Smith — Fort Smith, Arkansas
- CHI Saint Vincent Cancer Center Hot Springs — Hot Springs, Arkansas
- John L McClellan Memorial Veterans Hospital — Little Rock, Arkansas
- Kaiser Permanente-Anaheim — Anaheim, California
- Mission Hope Medical Oncology - Arroyo Grande — Arroyo Grande, California
- PCR Oncology — Arroyo Grande, California
- AIS Cancer Center at San Joaquin Community Hospital — Bakersfield, California
- Kaiser Permanente-Baldwin Park — Baldwin Park, California
- Kaiser Permanente-Bellflower — Bellflower, California
- Providence Saint Joseph Medical Center/Disney Family Cancer Center — Burbank, California
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
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💡 How to Participate
- Check the checklist above to see if you may qualify.
- Review the official NIH record below to find the coordinating site.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.