About Pricing FAQs Providers Trials Blog

Login Get started

Finding studies

Your health journey, clearly organized.

Questions? feedback@clareohealth.com

Product

How it works
Pricing
For Providers
Trials

Company

About
Blog
FAQ

Legal

Privacy Policy
Terms of Service

© 2026 Clareo Health. All rights reserved.

Clareo Health | Breast Cancer Clinical Trials in Portland | 441 Studies

Clinical Trials Breast CancerPortland

Breast Cancer Clinical Trials in Portland

Find 441 clinical trials for breast cancer near Portland, Oregon. Connect with research centers in your area.

All Breast Cancer trials nationwide All trials in Portland

Order

Status

RecruitingNot yet recruitingActive, not recruitingEnrolling by invitationCompletedTerminated

Phase

Early phase 1Phase 1Phase 1–2Phase 2Phase 2–3Phase 3Phase 4No phase

Who can join

Healthy volunteers too

Showing 121-140 of 441 trials

WithdrawnTucatinib With Chemotherapy and Trastuzumab in Advanced Her-2-neu Overexpressing, Previously Treated Breast Cancer.This is an open label study of tucatinib in combination with either vinorelbine or gemcitabine and trastuzumab in patients with metastatic HER2+ breast cancer.NCT04896320·Clackamas, Oregon and 3 others Active not recruitingNeoadjuvant DPX-Survivac Aromatase Inhibition, Radiotherapy or Cyclophosphamide in HR+HER2- Breast CancerThe study seeks to establish the safety of neoadjuvant aromatase inhibitor with: DPX-Survivac, DPX-Survivac plus radiation, or DPX-Survivac with cyclophosphamide in stage I to III…NCT04895761·Portland, Oregon CompletedEverolimus in Combination With Trastuzumab and Paclitaxel in the Treatment of HER2 Positive Locally Advanced or Metastatic Breast CancerThe purpose of this Phase III study was to confirm the value of adding everolimus to weekly paclitaxel and trastuzumab as treatment of HER2-overexpressing metastatic breast cancer.NCT00876395·Mobile, Alabama and 139 others

Breast Cancer Trials in Other Cities

New York Los Angeles Chicago Houston Phoenix Philadelphia

Data from ClinicalTrials.govTerms

RecruitingPalazestrant in Combination With Ribociclib for the First-line Treatment of ER+/HER2- Advanced Breast CancerThis 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…NCT07085767·Hot Springs, Arkansas and 199 others

Active not recruitingRegional Radiotherapy in Biomarker Low-Risk Node Positive and T3N0 Breast CancerThe purpose of this study is to compare the effects on low risk breast cancer receiving usual care that includes regional radiation therapy, with receiving no regional radiation…NCT03488693·Fairbanks, Alaska and 484 others

CompletedS1105: Text-Messaging Intervention to Reduce Early Discontinuation of AI Therapy in Women With Early-Stage Breast CancerRATIONALE: Measuring how text-message affects treatment compliance in women with breast cancer may help doctors plan the best treatment.NCT01515800·Anchorage, Alaska and 203 others

CompletedLong-Term Effect of Adolescent Diet on Hormones and Breast Cancer Risk in Women Previously Enrolled in the Dietary Intervention Study in ChildrenRATIONALE: The amount and type of fat in the diet may affect hormone levels, bone mineral density, and breast density later in life.NCT00458588·San Francisco, California and 9 others

CompletedA Phase 3, Multi-Center Study of Gemcitabine/Carboplatin, With or Without BSI-201, in Patients With ER-, PR-, and Her2-Negative Metastatic Breast CancerThe goal of this study was to determine the effect on overall survival and progression free survival by adding iniparib (BSI-201/SAR240550) to the combination of…NCT00938652·Birmingham, Alabama and 101 others

TerminatedA Phase 2 Study of EZN-2208 in Patients With Metastatic Breast CancerThis is a Phase 2, multicenter, open-label, noncomparative study to evaluate safety,efficacy and of single-agent EZN 2208 administered in patients with previously treated MBC.NCT01036113·Sedona, Arizona and 35 others

TerminatedTherapeutic Cancer Vaccine (AST-301, pNGVL3-hICD) in Patients With Breast CancerThe purpose of this study is to evaluate the efficacy and safety of an adjuvant treatment of therapeutic cancer vaccine (AST-301, pNGVL3-hICD) in patients with HER2-low expression…NCT05163223·Chandler, Arizona and 16 others

CompletedA Study of XmAb®20717 in Subjects With Selected Advanced Solid TumorsThis is a Phase 1, multiple dose, ascending dose escalation study to define a MTD/RD and regimen of XmAb20717, to describe safety and tolerability, to assess PK and…NCT03517488·Los Angeles, California and 16 others

TerminatedA Phase III Trial of Niraparib Versus Physician's Choice in HER2 Negative, Germline BRCA Mutation-positive Breast Cancer PatientsThe purpose of this study is to compare progression-free survival (PFS) in patients with advanced/metastatic breast cancer who have a BRCA mutation when treated with niraparib as…NCT01905592·Tucson, Arizona and 103 others

Active not recruitingDoxorubicin Hydrochloride, Cyclophosphamide, and Paclitaxel With or Without Bevacizumab in Treating Patients With Lymph Node-Positive or High-Risk, Lymph Node-Negative Breast CancerThis randomized phase III trial studies doxorubicin hydrochloride, cyclophosphamide, and paclitaxel to see how well they work with or without bevacizumab in treating patients with…NCT00433511·Anniston, Alabama and 841 others

Active not recruitingAn 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…NCT05952557·Dothan, Alabama and 660 others

RecruitingIdentifying and Caring for Individuals With Inherited Cancer SyndromeThis trial examines approaches to identify and care for individuals with inherited cancer syndrome.NCT04494945·Portland, Oregon and 1 other

Active not recruitingClinical Trial of Neoadjuvant Chemotherapy With Atezolizumab or Placebo in Patients With Triple-Negative Breast Cancer Followed After Surgery by Atezolizumab or PlaceboThe main purpose of this study is to learn if the usual chemotherapy given before surgery (neoadjuvant therapy) for breast cancer plus the experimental drug, atezolizumab, is…NCT03281954·Mobile, Alabama and 216 others

CompletedStudy of AMG 650 in Adult Participants With Advanced Solid TumorsTo evaluate the safety and tolerability of AMG 650 in adult participants and to determine the maximum tolerated dose (MTD) and/or recommended phase 2 dose (RP2D).NCT04293094·Los Angeles, California and 21 others

Active not recruitingDNA-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)NCT04567420·Tucson, Arizona and 18 others

TerminatedTrial of Intratumoral Injections of TTI-621 in Subjects With Relapsed and Refractory Solid Tumors and Mycosis FungoidesThis is a multicenter, open-label, phase 1 study conducted to test intratumoral injections of TTI-621 in subjects that have relapsed and refractory percutaneously accessible solid…NCT02890368·Duarte, California and 6 others

CompletedRandomized Trial Of Exemestane Versus Continued Tamoxifen In Postmenopausal Women With Early Breast CancerTo compare the sequential administration of exemestane with administration of further tamoxifen until 5 years in postmenopausal women with operable breast cancer who have already…NCT00038467·Birmingham, Alabama and 376 others

PreviousPage 7 of 23Next

Other Conditions in Portland

Lung Cancer Prostate Cancer Colorectal Cancer Melanoma Leukemia Lymphoma