Testing Pembrolizumab Versus Observation in Patients With Merkel Cell Carcinoma After Surgery, STAMP Trial
Summary
The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →
Investigators
The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.
- Janice Mehnert
ECOG-ACRIN Cancer Research Group
Principal Investigator
A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.
Sites
553 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.
- University of Alabama at Birmingham Cancer Center
Birmingham, Alabama, United States
- Alaska Breast Care and Surgery Llc
Anchorage, Alaska, United States
- Alaska Oncology and Hematology Llc
Anchorage, Alaska, United States
- Alaska Women'S Cancer Care
Anchorage, Alaska, United States
- Anchorage Associates in Radiation Medicine
Anchorage, Alaska, United States
- Anchorage Oncology Centre
Anchorage, Alaska, United States
- Anchorage Radiation Therapy Center
Anchorage, Alaska, United States
- Katmai Oncology Group
Anchorage, Alaska, United States
- Providence Alaska Medical Center
Anchorage, Alaska, United States
- Fairbanks Memorial Hospital
Fairbanks, Alaska, United States
- Kingman Regional Medical Center
Kingman, Arizona, United States
- Banner University Medical Center - Tucson
Tucson, Arizona, United States
- University of Arizona Cancer Center-North Campus
Tucson, Arizona, United States
- Mercy Hospital Fort Smith
Fort Smith, Arkansas, United States
- Pcr Oncology
Arroyo Grande, California, United States
- Sutter Auburn Faith Hospital
Auburn, California, United States
- Sutter Cancer Centers Radiation Oncology Services-Auburn
Auburn, California, United States
- Alta Bates Summit Medical Center-Herrick Campus
Berkeley, California, United States
- Keck Medicine of Usc Buena Park
Buena Park, California, United States
- Providence Saint Joseph Medical Center/disney Family Cancer Center
Burbank, California, United States
- Mills-Peninsula Medical Center
Burlingame, California, United States
- Sutter Cancer Centers Radiation Oncology Services-Cameron Park
Cameron Park, California, United States
- Eden Hospital Medical Center
Castro Valley, California, United States
- Sutter Davis Hospital
Davis, California, United States
- Palo Alto Medical Foundation-Fremont
Fremont, California, United States
- Keck Medicine of Usc Huntington Beach
Huntington Beach, California, United States
- Keck Medicine of Usc Koreatown
Los Angeles, California, United States
- Los Angeles General Medical Center
Los Angeles, California, United States
- Usc / Norris Comprehensive Cancer Center
Los Angeles, California, United States
- Memorial Medical Center
Modesto, California, United States
- Palo Alto Medical Foundation-Camino Division
Mountain View, California, United States
- Palo Alto Medical Foundation-Gynecologic Oncology
Mountain View, California, United States
- Usc Norris Oncology/hematology-Newport Beach
Newport Beach, California, United States
- Sutter Cancer Research Consortium
Novato, California, United States
- Uc Irvine Health/chao Family Comprehensive Cancer Center
Orange, California, United States
- Palo Alto Medical Foundation Health Care
Palo Alto, California, United States
- Stanford Cancer Institute Palo Alto
Palo Alto, California, United States
- Va Palo Alto Health Care System
Palo Alto, California, United States
- Keck Medical Center of Usc Pasadena
Pasadena, California, United States
- Sutter Cancer Centers Radiation Oncology Services-Roseville
Roseville, California, United States
Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.
Drugs studied
No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →
Registration & key dates
Registry attributes as recorded on the ClinicalTrials.gov study record.
- Start
- 15 Nov 2018
- Primary completion
- 31 Dec 2026
- Completion
- 31 Dec 2026
- Last update posted
- 1 Jun 2026
- Registered enrollment
- 280
- Registry id
- NCT03712605
Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.