Crick
HomeTrialsGenesDrugs23andMeGraphBlogContact
  • Home
  • Trials
  • Genes
  • Drugs
  • 23andMe
  • Graph
  • Blog
  • Contact
Crick

An open-source clinical intelligence platform. Explore clinical trials, gene networks, and molecular structures using public data sources.

Data Sources

  • ClinicalTrials.gov
  • OpenTargets
  • ClinVar
  • PubChem

Links

  • Contact
  • About
  • Privacy

© 2026 Crick. All rights reserved.

Crick is for educational purposes only. Not medical advice.

Results for “Early Stage Estrogen Receptor (ER) Positive Breast Cancer”

55 trials

Filters

Phase
Early Phase 1
Phase 1
Phase 2
Phase 3
Phase 4
Status
Recruiting
Active, Not Recruiting
Not Yet Recruiting
Completed
Enrolling by Invitation

Showing 20 of 55 results

Not applicableStudy completedNCT02057029
What this trial is testing

Assessment of the Decision-making Impact of the Breast Cancer Index in Recommending Extended Adjuvant Endocrine Therapy for Patients With Early Stage ER-positive Breast Cancer

Who this might be right for
Breast CancerEarly Stage Estrogen Receptor (ER) Positive Breast Cancer
Yale University 96
Testing effectiveness (Phase 2)Ended earlyNCT01430585
What this trial is testing

Pre-Operative Study of PF-4691502 With Letrozole Compared To Letrozole Alone In Patients With Early Breast Cancer

Who this might be right for
Early Breast Cancer (Phase 2)Advanced Breast Cancer (Phase 1b)
Pfizer 14
Testing effectiveness (Phase 2)Active Not RecruitingNCT03573648
What this trial is testing

Neoadjuvant Endocrine Therapy, Palbociclib, Avelumab in Estrogen Receptor Positive Breast Cancer

Who this might be right for
Breast Cancer
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins 33
Testing effectiveness (Phase 2)Study completedNCT04436744
What this trial is testing

Evaluate the Efficacy, Safety, and Pharmacokinetics of Giredestrant Plus Palbociclib Compared With Anastrozole Plus Palbociclib for Postmenopausal Women With Estrogen Receptor-Positive and HER2-Negative Untreated Early Breast Cancer (coopERA Breast Cancer)

Who this might be right for
Early Breast Cancer
Hoffmann-La Roche 221
Not applicableStudy completedNCT02347449
What this trial is testing

The Impact of the Oncotype DX® Breast Cancer Assay on Treatment Decisions in a Canadian Population

Who this might be right for
Hormone Receptor Positive Malignant Neoplasm of Breast
Sunnybrook Health Sciences Centre 100
Large-scale testing (Phase 3)Active Not RecruitingNCT04961996
What this trial is testing

A Study Evaluating the Efficacy and Safety of Adjuvant Giredestrant Compared With Physician's Choice of Adjuvant Endocrine Monotherapy in Participants With Estrogen Receptor-Positive, HER2-Negative Early Breast Cancer (lidERA Breast Cancer)

Who this might be right for
Early Breast Cancer
Hoffmann-La Roche 4,170
Not applicableStudy completedNCT01515800
What this trial is testing

S1105: Text-Messaging Intervention to Reduce Early Discontinuation of AI Therapy in Women With Early-Stage Breast Cancer

Who this might be right for
Breast Cancer
SWOG Cancer Research Network 724
Large-scale testing (Phase 3)Study completedNCT01385137
What this trial is testing

S0927:Omega3-Fatty Acid Supp in Treating Muscle&Bone Pain&Stiffness in Pts W/Stg I,II,III Brst Canc Rec'v Hormone Thpy

Who this might be right for
ArthralgiaBreast CancerPain
SWOG Cancer Research Network 262
Testing effectiveness (Phase 2)Study completedNCT00093002
What this trial is testing

Fulvestrant (FASLODEX™) as a Treatment in Postmenopausal Women With Estrogen Receptor Positive Breast Cancer

Who this might be right for
Breast Cancer
AstraZeneca 179
Large-scale testing (Phase 3)Not Yet RecruitingNCT07541079
What this trial is testing

A Study Evaluating Adherence, Tolerability, and Patient Reported Outcomes of Giredestrant in Participants With ER+/HER2- Early Breast Cancer Who Are Intolerant to Adjuvant Aromatase Inhibitor Therapy (novERA Breast Cancer)

Who this might be right for
Early Breast Cancer
Genentech, Inc. 300
Not applicableStudy completedNCT00755313
What this trial is testing

Effects of Chemotherapy on the Brain in Women With Newly Diagnosed Early-Stage Breast Cancer

Who this might be right for
Breast CancerChemotherapeutic Agent ToxicityCognitive/Functional Effects+4 more
University of California, San Francisco 81
Testing effectiveness (Phase 2)Looking for participantsNCT06500208
What this trial is testing

Neoadjuvant Adebrelimab and Chemotherapy in High-rish ER+/HER2- BC

Who this might be right for
Breast Cancer
Shanghai Jiao Tong University School of Medicine 48
Testing effectiveness (Phase 2)Looking for participantsNCT06452394
What this trial is testing

NEODOXy: Targeting Breast Cancer Stem Cells With Doxycycline

Who this might be right for
Breast Cancer
Swiss Cancer Institute 50
Testing effectiveness (Phase 2)Not Yet RecruitingNCT07287098
What this trial is testing

Imlunestrant (LY3484356) in Premenopausal Women With Estrogen Receptor-Positive (ER+) Human Epidermal Growth Factor Receptor 2 Negative (HER2-) Early Breast Cancer

Who this might be right for
Breast Neoplasms
Eli Lilly and Company 600
Testing effectiveness (Phase 2)Active Not RecruitingNCT02603679
What this trial is testing

Neoadjuvant Response-guided Treatment of Luminal B-type Tumors and Luminal A-type Tumors With Node Metastases

Who this might be right for
Early-Stage Breast CarcinomaEstrogen Receptor Positive Tumor
Thomas Hatschek 181
Large-scale testing (Phase 3)Study completedNCT00427245
What this trial is testing

Goserelin in Preventing Early Menopause in Premenopausal Women Undergoing Chemotherapy for Stage I, Stage II, or Stage III Breast Cancer

Who this might be right for
Breast CancerInfertilityMenopausal Symptoms
Anglo Celtic Cooperative Oncology Group 400
Early research (Phase 1)WithdrawnNCT02483871
What this trial is testing

Dose Optimization of Rosuvastatin in Early Stage and Metastatic Estrogen Receptor Positive Breast Cancer Patients on Endocrine Therapy

Who this might be right for
Breast Cancer
Duke University
Not applicableWithdrawnNCT00899639
What this trial is testing

Studying Tumor Tissue Samples From Patients With Early-Stage Breast Cancer

Who this might be right for
Breast Cancer
Rutgers, The State University of New Jersey
Not applicableEnded earlyNCT05560685
What this trial is testing

SMART-ER: Symptom Monitoring With Patient-reported Outcomes

Who this might be right for
Breast Cancer
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins 10
Testing effectiveness (Phase 2)Study completedNCT01439282
What this trial is testing

Eribulin in Combination With Capecitabine for Adjuvant Treatment in Estrogen Receptor-Positive Early Stage Breast Cancer

Who this might be right for
Estrogen Receptor Positive TumorBreast Cancer
Eisai Inc. 77
Load More Results