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Clinical trialNCT04166318Active, not recruitingPhase 2Interventional

Lower-Dose Chemoradiation in Treating Patients With Early-Stage Anal Cancer, the DECREASE Study

SponsorECOG-ACRIN Cancer Research GroupEnrollment252Anal Basaloid CarcinomaAnal Canal Cloacogenic CarcinomaAnal Canal Squamous Cell CarcinomaAnal Margin Squamous Cell CarcinomaStage I Anal Cancer AJCC v8Stage IIA Anal Cancer AJCC v8
View the registry record on ClinicalTrials.gov

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.

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

659 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • 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

  • Cancer Center at Saint Joseph'S

    Phoenix, Arizona, United States

  • Mercy Hospital Fort Smith

    Fort Smith, Arkansas, United States

  • Chi Saint Vincent Cancer Center Hot Springs

    Hot Springs, Arkansas, United States

  • University of Arkansas for Medical Sciences

    Little Rock, Arkansas, United States

  • Mission Hope Medical Oncology - Arroyo Grande

    Arroyo Grande, California, United States

  • Pcr Oncology

    Arroyo Grande, California, United States

  • Providence Saint Joseph Medical Center/disney Family Cancer Center

    Burbank, California, United States

  • Mercy Cancer Center - Carmichael

    Carmichael, California, United States

  • Mercy San Juan Medical Center

    Carmichael, California, United States

  • Mercy Cancer Center - Elk Grove

    Elk Grove, California, United States

  • Uci Health - Chao Family Comprehensive Cancer Center and Ambulatory Care

    Irvine, California, United States

  • Uc San Diego Moores Cancer Center

    La Jolla, California, United States

  • Contra Costa Regional Medical Center

    Martinez, California, United States

  • Mercy Cancer Center

    Merced, California, United States

  • Uc Irvine Health/chao Family Comprehensive Cancer Center

    Orange, California, United States

  • Stanford Cancer Institute Palo Alto

    Palo Alto, California, United States

  • Mercy Cancer Center - Rocklin

    Rocklin, California, United States

  • Mercy Cancer Center - Sacramento

    Sacramento, California, United States

  • Uc San Diego Medical Center - Hillcrest

    San Diego, California, United States

  • Pacific Central Coast Health Center-San Luis Obispo

    San Luis Obispo, California, United States

  • Mission Hope Medical Oncology - Santa Maria

    Santa Maria, California, United States

  • Woodland Memorial Hospital

    Woodland, California, United States

  • Rocky Mountain Cancer Centers-Aurora

    Aurora, Colorado, United States

  • Uchealth University of Colorado Hospital

    Aurora, Colorado, United States

  • Rocky Mountain Cancer Centers-Boulder

    Boulder, Colorado, United States

  • Memorial Hospital North

    Colorado Springs, Colorado, United States

  • Penrose-Saint Francis Healthcare

    Colorado Springs, Colorado, United States

  • Rocky Mountain Cancer Centers-Penrose

    Colorado Springs, Colorado, United States

  • Saint Francis Cancer Center

    Colorado Springs, Colorado, United States

619 more sites on the registry record.ClinicalTrials.gov ↗

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
2 Jan 2020
Primary completion
31 Dec 2029
Completion
31 Dec 2029
Last update posted
10 Jul 2026
Registered enrollment
252
Registry id
NCT04166318

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.