CancerDrs

Breast Cancer clinical trials in Colorado

34 actively recruiting breast cancer trials at 28 sites across Colorado.

Data from ClinicalTrials.gov · last refreshed

Payments from drug makers to the doctors running these trials

For 2 of the trials on this page, the pharmaceutical company funding the trial also disclosed payments to the physicians leading it — public data from the federal CMS Open Payments database. Paying clinical-trial investigators for site work is expected and necessary for industry-funded trials; the scale and source are simply useful context when you're deciding whether to enroll. See the full breast cancer transparency page →

Phase 3 Recruiting Academic/Other

Evaluating the Addition of Adjuvant Chemotherapy to Ovarian Function Suppression Plus Endocrine Therapy in Premenopausal Patients With pN0-1, ER-Positive/HER2-Negative Breast Cancer and an Oncotype Recurrence Score Less Than or Equal to 25

This Phase III Trial will determine whether adjuvant chemotherapy (ACT) added to ovarian function suppression (OFS) plus endocrine therapy (ET) is superior to OFS plus ET in improving invasive breast cancer-free survival (IBCFS) among prem…

Sponsor: NRG Oncology
NCT ID: NCT05879926
Sites in Colorado:
  • UCHealth University of Colorado Hospital — Aurora, Colorado
  • Penrose-Saint Francis Healthcare — Colorado Springs, Colorado
  • Rocky Mountain Cancer Centers-Penrose — Colorado Springs, Colorado
  • UCHealth Memorial Hospital Central — Colorado Springs, Colorado
  • Memorial Hospital North — Colorado Springs, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Network

Shorter Chemo-Immunotherapy Without Anthracycline Drugs for Early-Stage Triple Negative Breast Cancer

This phase III trial compares the effects of shorter chemotherapy (chemo)-immunotherapy without anthracyclines to usual chemo-immunotherapy for the treatment of early-stage triple negative breast cancer. Paclitaxel is in a class of medicat…

Sponsor: SWOG Cancer Research Network
NCT ID: NCT05929768
Sites in Colorado:
  • Rocky Mountain Cancer Centers-Aurora — Aurora, Colorado
  • Boulder Community Foothills Hospital — Boulder, Colorado
  • Rocky Mountain Cancer Centers-Boulder — Boulder, Colorado
  • Intermountain Health Platte Valley Hospital — Brighton, Colorado
  • Rocky Mountain Cancer Centers - Centennial — Centennial, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Academic/Other

Pembrolizumab vs. Observation in People With Triple-negative Breast Cancer Who Had a Pathologic Complete Response After Chemotherapy Plus Pembrolizumab

This phase III trial compares the effect of continuation of treatment with pembrolizumab (usual approach) to observation only at preventing cancer from coming back in patients with early-stage triple-negative breast cancer (TNBC) who achie…

Sponsor: Alliance for Clinical Trials in Oncology
NCT ID: NCT05812807
Sites in Colorado:
  • UCHealth University of Colorado Hospital — Aurora, Colorado
  • UCHealth Memorial Hospital Central — Colorado Springs, Colorado
  • Memorial Hospital North — Colorado Springs, Colorado
  • Kaiser Permanente-Franklin — Denver, Colorado
  • UCHealth - Cherry Creek — Denver, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Academic/Other

De-Escalation of Breast Radiation Trial for Hormone Sensitive, HER-2 Negative, Oncotype Recurrence Score Less Than or Equal to 18 Breast Cancer (DEBRA)

This Phase III Trial evaluates whether breast conservation surgery and endocrine therapy results in a non-inferior rate of invasive or non-invasive ipsilateral breast tumor recurrence (IBTR) compared to breast conservation with breast radi…

Sponsor: NRG Oncology
NCT ID: NCT04852887
Sites in Colorado:
  • UCHealth University of Colorado Hospital — Aurora, Colorado
  • Rocky Mountain Cancer Centers-Boulder — Boulder, Colorado
  • Penrose-Saint Francis Healthcare — Colorado Springs, Colorado
  • UCHealth Memorial Hospital Central — Colorado Springs, Colorado
  • Saint Francis Cancer Center — Colorado Springs, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Network

S1501 Dual Observational and Randomized Cohort Study of Patients With Metastatic HER-2+ Breast Cancer at Risk of Cardiac Toxicity

This trial has two cohorts of patients with human epidermal growth factor receptor (HER)-2-positive breast cancer that has spread to other places in the body. All patients must be receiving trastuzumab-based treatment. Both cohorts are bei…

Sponsor: SWOG Cancer Research Network
NCT ID: NCT03418961
Sites in Colorado:
  • Penrose-Saint Francis Healthcare — Colorado Springs, Colorado
  • Rocky Mountain Cancer Centers-Penrose — Colorado Springs, Colorado
  • Kaiser Permanente-Franklin — Denver, Colorado
  • Porter Adventist Hospital — Denver, Colorado
  • SCL Health Saint Joseph Hospital — Denver, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Academic/Other

E-Mindfulness Approaches for Living After Breast Cancer

NRG-CC015 is a prospective, randomized phase III clinical trial to evaluate the efficacy of two distinct digital approaches for delivering a mindfulness-based intervention: a live, instructor-led version delivered over Zoom (MAPs LO), and …

Sponsor: NRG Oncology
NCT ID: NCT06748222
Sites in Colorado:
  • UCHealth University of Colorado Hospital — Aurora, Colorado
  • UCHealth Memorial Hospital Central — Colorado Springs, Colorado
  • Memorial Hospital North — Colorado Springs, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

A Study of Elacestrant Versus Standard Endocrine Therapy in Women and Men With ER+,HER2-, Early Breast Cancer With High Risk of Recurrence

The primary goal of this study is to evaluate the effectiveness of elacestrant versus standard endocrine therapy in participants with node-positive, Estrogen Receptor-positive (ER+), Human Epidermal Growth Factor-2 negative (HER2-) early b…

Sponsor: Stemline Therapeutics, Inc.
NCT ID: NCT06492616
Sites in Colorado:
  • St. Joseph Hospital-Cancer Centers of Colorado — Denver, Colorado
  • Rocky Mountain Cancer Centers, LLP — Lone Tree, Colorado
  • AHMG Hematology and Oncology — Parker, Colorado
  • Cancer Care at CommonSpirit St. Anthony North Hospital — Westminster, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

A Study of Tersolisib (LY4064809/STX-478) With Other Anti-Cancer Treatments in Participants With Advanced Breast Cancer With a Genetic Change (PIK3CA)

The purpose of the study is to assess the efficacy and safety of the addition of Tersolisib (LY4064809/STX-478) to other anti-cancer drugs as first treatment for advanced hormone receptor-positive (HR+)/human epidermal growth factor recept…

Sponsor: Eli Lilly and Company
NCT ID: NCT07174336
Sites in Colorado:
  • UCHealth Harmony — Fort Collins, Colorado
  • Cancer Centers of Colorado St. Mary's Regional Hospital — Grand Junction, Colorado
  • Banner MD Anderson Cancer Center at North Colorado Medical Center — Greeley, Colorado
  • Banner MD Anderson Cancer Center at McKee Medical Center — Loveland, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

A Study to Learn About the Study Medicine Called PF-07248144 in Combination With Fulvestrant in People With HR-positive, HER2-negative Advanced or Metastatic Breast Cancer Who Progressed After a Prior Line of Treatment.

The purpose of this study is to learn about the safety and effects of the study medicine PF-07248144 when given along with fulvestrant for the possible treatment of HR-positive, HER2-negative advanced or metastatic breast cancer. HR-positi…

Sponsor: Pfizer
NCT ID: NCT07062965
Sites in Colorado:
  • Rocky Mountain Cancer Centers LLP — Aurora, Colorado
  • Rocky Mountain Cancer Centers LLP — Boulder, Colorado
  • Rocky Mountain Cancer Centers LLP — Centennial, Colorado
  • Rocky Mountain Cancer Centers LLP — Colorado Springs, Colorado
  • Rocky Mountain Cancer Centers LLP — Colorado Springs, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

A Clinical Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) in People With Breast Cancer (MK-2870-032)

Researchers are looking for new ways to treat types of breast cancer that are both: * High-risk, which means the cancer may have a higher chance of getting worse or coming back after treatment * Early-stage, which means the cancer is in th…

Sponsor: Merck Sharp & Dohme LLC
NCT ID: NCT06966700
Sites in Colorado:
  • Intermountain Health Cancer Center Saint Joseph ( Site 0062) — Denver, Colorado
  • Rocky Mountain Cancer Centers (RMCC) ( Site 8006) — Denver, Colorado
  • Intermountain Health St. Mary's Regional Hospital ( Site 0054) — Grand Junction, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

Palazestrant in Combination With Ribociclib for the First-line Treatment of ER+/HER2- Advanced Breast Cancer

This phase 3 clinical trial compares the efficacy and safety of palazestrant with ribociclib to letrozole and ribociclib in women and men who have not received prior systemic anti-cancer treatment for advanced breast cancer.

Sponsor: Olema Pharmaceuticals, Inc.
NCT ID: NCT07085767
Sites in Colorado:
  • Clinical Trial Site — Aurora, Colorado
  • Clinical Trial Site — Denver, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

Phase 3 Study of RLY-2608 + Fulvestrant vs Capivasertib + Fulvestrant as Treatment for Locally Advanced or Metastatic PIK3CA-mutant HR+/HER2- Breast Cancer

This is a global, multicenter, open-label, randomized Phase 3 study comparing the efficacy and safety of RLY-2608 (zovegalisib) + fulvestrant to capivasertib + fulvestrant for the treatment of patients with HR+/HER2- ABC with PIK3CA mutati…

Sponsor: Relay Therapeutics, Inc.
NCT ID: NCT06982521
Sites in Colorado:
  • Rocky Mountain Cancer Centers, LLP — Longmont, Colorado
View on ClinicalTrials.gov →
Phase 2 Recruiting Industry

A Study of Alisertib in Combination With Endocrine Therapy in Patients With HR-positive, HER2-negative Recurrent or Metastatic Breast Cancer

PUMA-ALI-1201 is a randomized, dose optimization, multicenter, Phase 2 study of alisertib administered in combination with endocrine therapy in participants with pathology-confirmed HR-positive/HER2-negative metastatic breast cancer (MBC) …

Sponsor: Puma Biotechnology, Inc.
NCT ID: NCT06369285
Sites in Colorado:
  • University of Colorado School of Medicine — Aurora, Colorado
View on ClinicalTrials.gov →
Phase 1, Phase 2 Recruiting Industry

First-in-Human Study of Tersolisib (STX-478) as Monotherapy and in Combination With Other Antineoplastic Agents in Participants With Advanced Solid Tumors

Study STX-478-101 (LY4064809) is a multipart, open-label, phase 1/2 study evaluating the safety, tolerability, pharmacokinetics (PK), and preliminary antitumor activity of STX-478 (LY4064809) in participants with advanced solid tumors with…

Sponsor: Eli Lilly and Company
NCT ID: NCT05768139
Sites in Colorado:
  • University of Colorado Cancer Center — Aurora, Colorado
View on ClinicalTrials.gov →
Phase 2 Recruiting Industry

ASPEN-09-03: A Study of Evorpacept in Combination With Trastuzumab and Chemotherapy in Metastatic HER2-Positive Breast Cancer

The Substudy Protocol ASPEN-09-03 is a Phase 2, single-arm, multicenter study evaluating the efficacy, safety, and tolerability of evorpacept in combination with trastuzumab and chemotherapy in participants with HER2-positive metastatic br…

Sponsor: ALX Oncology Inc.
NCT ID: NCT07007559
Sites in Colorado:
  • Saint Joseph Hospital - Cancer Centers of Colorado — Denver, Colorado
  • Lutheran Hospital - Cancer Centers of Colorado — Golden, Colorado
  • Saint Mary's Regional Hospital - Cancer Centers of Colorado — Grand Junction, Colorado
View on ClinicalTrials.gov →
Phase 1, Phase 2 Recruiting Industry

A Study of PARP1 Selective Inhibitor, EIK1004 (IMP1707) in Participants With Advanced Solid Tumors.

This study will evaluate the safety, tolerability, and preliminary efficacy of EIK1004 (IMP1707) in participants with recurrent advanced/metastatic breast cancer, ovarian cancer, metastatic castrate resistant prostate cancer (mCRPC) and pa…

Sponsor: Eikon Therapeutics
NCT ID: NCT06907043
Sites in Colorado:
  • Sarah Cannon Research Institute at HealthOne — Denver, Colorado
View on ClinicalTrials.gov →
Phase 1 Recruiting Industry

First-in-Human Study of Mutant-selective PI3Kα Inhibitor, RLY-2608, as a Single Agent in Patients With Advanced Solid Tumors and in Combination With Endocrine Therapy +/- a CDK4/6 or CDK4 Inhibitor in Patients With Advanced Solid Tumors or Advanced Breast Cancer

This is an open-label, FIH study designed to evaluate the maximum tolerated dose, recommended Phase 2 dose, safety, tolerability, PK, pharmacodynamics, and preliminary antineoplastic activity of RLY-2608, in advanced solid tumor patients w…

Sponsor: Relay Therapeutics, Inc.
NCT ID: NCT05216432
Sites in Colorado:
  • HealthONE — Denver, Colorado
View on ClinicalTrials.gov →
Phase 1 Recruiting Industry

A Study of LY4052031 in Participants With Advanced or Metastatic Urothelial Cancer or Other Solid Tumors

The purpose of this study is to find out whether the study drug, LY4052031, is safe, tolerable and effective in participants with advanced, or metastatic solid tumors including urothelial cancer. The study is conducted in two parts - phase…

Sponsor: Eli Lilly and Company
NCT ID: NCT06465069
Sites in Colorado:
  • Sarah Cannon Research Institute at HealthOne — Denver, Colorado
View on ClinicalTrials.gov →
Phase 1 Recruiting Industry

Study to Assess Adverse Events and Change in Disease Activity in Adult Participants With Select Advanced Solid Tumor Indications Receiving Intravenous (IV) ABBV-400

Cancer is a condition where cells in a specific part of body grow and reproduce uncontrollably. The purpose of this study is to assess adverse events and change in disease activity when ABBV-400 is given to adult participants to treat adva…

Sponsor: AbbVie
NCT ID: NCT06084481
Sites in Colorado:
  • University of Colorado Cancer Center - Cancer Clinical Trials Office /ID# 255128 — Aurora, Colorado
  • Sarah Cannon Research Institute at HealthONE - Denver /ID# 258926 — Denver, Colorado
View on ClinicalTrials.gov →
Phase 1 Recruiting Industry

Safety, PK and Efficacy of QXL138AM in Patients With Solid Tumors and Multiple Myeloma

Study QXL138AM-001 is a Phase 1a/1b study to investigate the safety, pharmacokinetics, and preliminary activity of QXL138AM in subjects with locally advanced un-resectable and/or metastatic solid tumors and multiple myeloma. The study is a…

Sponsor: Nammi Therapeutics Inc
NCT ID: NCT06582017
Sites in Colorado:
  • Sarah Cannon Research Institute - Denver DDU — Denver, Colorado
View on ClinicalTrials.gov →
Phase 1 Recruiting Industry

BGB-43395 Alone or as Part of Combination Therapies in Participants With Breast Cancer and Other Advanced Solid Tumors

This is a dose escalation and dose expansion study to compare how well BGB-43395, a selective cyclin-dependent kinase 4 (CDK4) inhibitor, works as monotherapy or in combination with fulvestrant, letrozole, or elacestrant in participants wi…

Sponsor: BeOne Medicines
NCT ID: NCT06120283
Sites in Colorado:
  • Sarah Cannon Research Institute (Scri) At Health One — Denver, Colorado
View on ClinicalTrials.gov →

Showing 25 of 34 trials with sites in Colorado. See all breast cancer trials →

Medical disclaimer: This page aggregates public ClinicalTrials.gov data. It is not medical advice. Always confirm eligibility and enrollment details with the trial site or your oncologist.

Source: ClinicalTrials.gov API v2 · Last checked: 2026-10-19