Clinical trialNCT04875351Active, not recruitingObservational

Breast Cancer Index (BCI) Registry

SponsorBiotheranostics, Inc.Enrollment3,465Breast Cancer

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

The purpose of the Breast Cancer Index (BCI) Registry study is to conduct a large scale, population-based prospective registry to evaluate long-term clinical outcome, clinical impact, medication adherence and quality of life in hormone receptor positive (HR+) early-stage breast cancer patients receiving BCI testing as part of routine clinical care to inform extended endocrine therapy.

clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Amanda KL Anderson, PhD
Biotheranostics, Inc.
Study Director
clinicaltrials.gov ↗
Joyce A O'Shaughnessy, MD
US Oncology Network
Principal InvestigatorKOL profile →
clinicaltrials.gov ↗
Kai Treuner, PhD
Biotheranostics, Inc.
Study Director
clinicaltrials.gov ↗

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

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

United States

Southern Cancer Center, P.C. - Daphne
Daphne, Alabama, United States
Southern Cancer Center, Pc - Mobile Infirmary
Mobile, Alabama, United States
Southern Cancer Center, Pc - Providence Hospital
Mobile, Alabama, United States
Southern Cancer Center, Pc - Springhill Medical Center
Mobile, Alabama, United States
Arizona Oncology Associates, Pc - Glendale - Saguaro Cancer Center
Glendale, Arizona, United States
Arizona Oncology Associates, Pc - Goodyear
Goodyear, Arizona, United States
Arizona Oncology Associates, Pc - Phoenix - Biltmore Cancer Center
Phoenix, Arizona, United States
Arizona Oncology Associates, Pc - Phoenix - Deer Valley
Phoenix, Arizona, United States
Arizona Oncology Associates, Pc - Scottsdale
Scottsdale, Arizona, United States
Arizona Oncology Associates, Pc - East Valley Cancer Center
Tempe, Arizona, United States
Sansum Clinic - Ridley-Tree Cancer Center
Santa Barbara, California, United States
Sansum Clinic - Ridley-Tree Cancer Center (solvang)
Solvang, California, United States
Rocky Mountain Cancer Center - Aurora
Aurora, Colorado, United States
Rocky Mountain Cancer Center - Boulder
Boulder, Colorado, United States
Rocky Mountain Cancer Center - Centennial
Centennial, Colorado, United States
Rocky Mountain Cancer Center - Colorado Springs
Colorado Springs, Colorado, United States
Rocky Mountain Cancer Center - Denver
Denver, Colorado, United States
Rocky Mountain Cancer Center - Denver Midtown
Denver, Colorado, United States
Rocky Mountain Cancer Center - Swedish Medical Center
Englewood, Colorado, United States
Rocky Mountain Cancer Centers - Lakewood
Lakewood, Colorado, United States
Rocky Mountain Cancer Center - Littleton
Littleton, Colorado, United States
Rocky Mountain Cancer Center - Lone Tree
Lone Tree, Colorado, United States
Rocky Mountain Cancer Center - Longmont
Longmont, Colorado, United States
Rocky Mountain Cancer Center - Pueblo
Pueblo, Colorado, United States
Rocky Mountain Cancer Center - Thornton
Thornton, Colorado, United States
Cancer Care Centers of Brevard, Inc.
Palm Bay, Florida, United States
Illinois Cancer Specialists - Arlington Heights
Arlington Heights, Illinois, United States
Affiliated Oncologists, Llc
Chicago Ridge, Illinois, United States
Illinois Cancer Specialists - Niles
Niles, Illinois, United States
Maryland Oncology Hematology, P.A. - Bethesda
Bethesda, Maryland, United States
Maryland Oncology Hematology, P.A. - Brandywine
Brandywine, Maryland, United States
Maryland Oncology Hematology, P.A. - Clinton
Clinton, Maryland, United States
Maryland Oncology Hematology, P.A. - Columbia
Columbia, Maryland, United States
Maryland Oncology Hematology, P.A. - Frederick
Frederick, Maryland, United States
Maryland Oncology Hematology, P.A. - Lanham
Lanham, Maryland, United States
Maryland Oncology Hematology, P.A. - Rockville - Aquilino Cancer Center
Rockville, Maryland, United States
Maryland Oncology Hematology, P.A. - Silver Spring - White Oak Cancer Center
Silver Spring, Maryland, United States
New York Oncology Hematology, P.C. - Albany Cancer Center
Albany, New York, United States
New York Oncology Hematology, P.C. - Albany Medical Center
Albany, New York, United States
Broome Oncology, Llc - Binghamton
Binghamton, New York, United States

65 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: 14 Apr 2021
Primary completion: 31 Dec 2028
Completion: 31 Dec 2028
Last update posted: 19 Sept 2024
Registered enrollment: 3,465
Registry id: NCT04875351

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.