CancerDrs

Breast Cancer clinical trials in Colorado

36 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 1 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 Academic/Other

ShortStop-HER2: 12 Months vs. 6 Months of HER2-targeted Medications for People With HER2+ Breast Cancer Who Had a Pathologic Complete Response After Chemotherapy Plus Trastuzumab

This phase III trial compares 6 months of human epidermal growth factor receptor 2 (HER2)-targeted therapy to 12 months of HER2-targeted therapy for the treatment of HER2-positive (+) breast cancer in patients that had a pathologic complet…

Sponsor: Alliance for Clinical Trials in Oncology
NCT ID: NCT06876714
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 Academic/Other

Testing Longer Duration Radiation Therapy Versus the Usual Radiation Therapy in Patients With Cancer That Has Spread to the Brain

This phase III trial compares the effectiveness of fractionated stereotactic radiosurgery (FSRS) to usual care stereotactic radiosurgery (SRS) in treating patients with cancer that has spread from where it first started to the brain. Radia…

Sponsor: NRG Oncology
NCT ID: NCT06500455
Sites in Colorado:
  • UCHealth University of Colorado Hospital — Aurora, Colorado
  • UCHealth Memorial Hospital Central — Colorado Springs, Colorado
  • Memorial Hospital North — Colorado Springs, Colorado
  • Poudre Valley Hospital — Fort Collins, Colorado
  • Cancer Care and Hematology-Fort Collins — Fort Collins, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

Study of Sacituzumab Govitecan-hziy and Pembrolizumab Versus Treatment of Physician's Choice in Patients With Triple Negative Breast Cancer Who Have Residual Invasive Disease After Surgery and Neoadjuvant Therapy (ASCENT-05/AFT-65 OptimICE-RD/GBG 119/NSABP B-63)

The goal of this study is to find out if the experimental product, sacituzumab govitecan-hziy (SG) in combination with pembrolizumab given after surgery, is effective and safe compared to the treatment of physician's choice (TPC) which inc…

Sponsor: Gilead Sciences
NCT ID: NCT05633654
Sites in Colorado:
  • University of Colorado Cancer Center — Aurora, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

An Adjuvant Endocrine-based Therapy Study of Camizestrant (AZD9833) in ER+/HER2- Early Breast Cancer (CAMBRIA-2)

This is a Phase III open-label study to assess if camizestrant improves outcomes compared to standard adjuvant endocrine therapy for patients with ER+/HER2- early breast cancer with intermediate-high or high risk for disease recurrence who…

Sponsor: AstraZeneca
NCT ID: NCT05952557
Sites in Colorado:
  • Research Site — Aurora, Colorado
  • Research Site — Littleton, Colorado
  • Research Site — Littleton, 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:
  • 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

Phase IIIb Study of Ribociclib + ET in Early Breast Cancer

The purpose of this open-label, multicenter, phase IIIb, single-arm study is to characterize the efficacy and safety of the combination of ribociclib and standard adjuvant endocrine therapy (ET) on invasive breast cancer-free survival (iBC…

Sponsor: Novartis Pharmaceuticals
NCT ID: NCT05827081
Sites in Colorado:
  • Rocky Mountain Cancer Centers — Denver, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

OP-1250 (Palazestrant) vs. Standard of Care for the Treatment of ER+/HER2- Advanced Breast Cancer

This phase 3 clinical trial compares the safety and efficacy of palazestrant (OP-1250) to the standard-of-care options of fulvestrant or an aromatase inhibitor in women and men with breast cancer whose disease has advanced on one endocrine…

Sponsor: Olema Pharmaceuticals, Inc.
NCT ID: NCT06016738
Sites in Colorado:
  • Clinical Trial Site — Aurora, Colorado
  • Clinical Trial Site — Denver, Colorado
  • Clinical Trial Site — Golden, Colorado
  • Clinical Trial Site — Grand Junction, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

Phase 3 Study to Evaluate the Efficacy and Safety of HER2/Neu Peptide GLSI-100 (GP2 + GM-CSF) in HER2/Neu Positive Subjects

This is a prospective, randomized, double-blinded, placebo-controlled, multi-center, Phase 3 study of GLSI-100 immunotherapy in HLA-A\*02 positive and HER2/neu positive subjects who are at high risk for disease recurrence and have complete…

Sponsor: Greenwich LifeSciences, Inc.
NCT ID: NCT05232916
Sites in Colorado:
  • Rocky Mountain Cancer Centers — Denver, Colorado
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

A Study of Metastases Free Survival With Saruparib vs Placebo Added to a Standard RT/ADT in Men With High-risk Prostate Cancer With a BRCA Mutation

The purpose of the study is to demonstrate superiority of Saruparib (AZD5305) relative to placebo added to a standard radiation therapy (RT) + androgen deprivation therapy (ADT) regimen by assessment of metastases-free survival in particip…

Sponsor: AstraZeneca
NCT ID: NCT06952803
Sites in Colorado:
  • Research Site — Lakewood, 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 2 Recruiting NIH

Targeted Therapy Directed by Genetic Testing in Treating Patients With Locally Advanced or Advanced Solid Tumors, The ComboMATCH Screening Trial

This ComboMATCH patient screening trial is the gateway to a coordinated set of clinical trials to study cancer treatment directed by genetic testing. Patients with solid tumors that have spread to nearby tissue or lymph nodes (locally adva…

Sponsor: National Cancer Institute (NCI)
NCT ID: NCT05564377
Sites in Colorado:
  • UCHealth University of Colorado Hospital — Aurora, Colorado
  • Poudre Valley Hospital — Fort Collins, Colorado
  • Cancer Care and Hematology-Fort Collins — Fort Collins, Colorado
  • UCHealth Greeley Hospital — Greeley, Colorado
  • Medical Center of the Rockies — Loveland, Colorado
View on ClinicalTrials.gov →
Phase 1, Phase 2 Recruiting Industry

Open-Label Umbrella Study To Evaluate Safety And Efficacy Of Elacestrant In Various Combination In Participants With Metastatic Breast Cancer

This is a multicenter, Phase 1b/2 trial in participants with estrogen receptor positive/human epidermal growth factor receptor 2 negative (ER+/HER2-) advanced/metastatic breast cancer. The phase 1b part of the trial will determine the reco…

Sponsor: Stemline Therapeutics, Inc.
NCT ID: NCT05563220
Sites in Colorado:
  • Rocky Mountain Cancer Centers — Lone Tree, 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

The Evaluation of PC14586 in Patients With Advanced Solid Tumors Harboring a TP53 Y220C Mutation (PYNNACLE)

The Phase 2 monotherapy portion of this study is currently enrolling and will evaluate the efficacy and safety of PC14586 (INN rezatapopt) in participants with locally advanced or metastatic solid tumors harboring a TP53 Y220C mutation. Th…

Sponsor: PMV Pharmaceuticals, Inc
NCT ID: NCT04585750
Sites in Colorado:
  • Rocky Mountain Cancer Center — Denver, Colorado
View on ClinicalTrials.gov →
Phase 2 Recruiting Industry

DNA-guided Second Line Adjuvant Therapy for High Residual Risk, Estrogen Receptor Positive, HER-2 Negative Breast Cancer (DARE)

A randomized, Phase II trial of circulating tumor DNA-guided second line Adjuvant therapy for high Residual risk, Estrogen Receptor positive, HER-2 negative breast cancer (DARE)

Sponsor: Criterium, Inc.
NCT ID: NCT04567420
Sites in Colorado:
  • University of Colorado Cancer Center — Aurora, Colorado
  • Intermountain — Golden, 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

Study of AMXT 1501 and DFMO in Combination With Standard Therapies in Advanced Solid Tumors

This study will evaluate the safety, tolerability, and preliminary effectiveness of AMXT 1501 and DFMO when combined with standard treatments for advanced solid tumors. The trial includes two groups: * Cohort 1: Patients with ER+ / HER2- b…

Sponsor: Aminex Therapeutics, Inc.
NCT ID: NCT07287917
Sites in Colorado:
  • Skin Cancer Institute — Englewood, Colorado
View on ClinicalTrials.gov →
Phase 1, Phase 2 Recruiting Industry

Phase 1a and Phase 2 Study for Safety, Preliminary Efficacy, PK and PD of ST-067

This is a multiphase, multicenter study, which includes a Phase 1a open-label, dose escalation monotherapy study of ST-067 given as an SC injection with or without obinutuzumab \[Gazyva®\] pre-treatment, by IV infusion, and in combination …

Sponsor: Simcha IL-18, Inc.
NCT ID: NCT04787042
Sites in Colorado:
  • Sarah Cannon Research Institute at HealthONE — Denver, Colorado
View on ClinicalTrials.gov →
Phase 2 Recruiting Academic/Other

Shortening Adjuvant Photon and Proton Irradiation (SAPPHIRe-II): A 4 Cohort, Randomized, Phase II Multi-center Trial Evaluating Shorter Schedules of Adjuvant Regional Nodal Irradiation Among Women and Men With Node-positive and High-risk Node-negative Invasive Breast Cancer

To learn about the effects of shorter RNI regimens in patients with breast cance who have had a lumpectomy or mastectomy and who are at higher risk for lower risk for the disease returning.

Sponsor: M.D. Anderson Cancer Center
NCT ID: NCT07076485
Sites in Colorado:
  • Banner MD Anderson Northern Colorado — Loveland, Colorado
View on ClinicalTrials.gov →
Phase 1 Recruiting Industry

Study of INCB123667 in Subjects With Advanced Solid Tumors

This is an open-label, dose-escalation and dose-expansion study to determine the safety, tolerability, PK, pharmacodynamics, and preliminary efficacy of INCB123667 when administered as monotherapy and in combination with anticancer therapi…

Sponsor: Incyte Corporation
NCT ID: NCT05238922
Sites in Colorado:
  • Rocky Mountain Cancer Centers-Sky Ridge — Lone Tree, Colorado
View on ClinicalTrials.gov →

Showing 25 of 36 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: 2026-05-25