Clinical Trials Logo

Clinical Trial Summary

This is a single-center prospective study involving analysis of circulating tumor DNA (ctDNA) and the gut microbiome in patients with metastatic breast cancer on standard of care endocrine therapy with an aromatase inhibitor in combination with an inhibitor of the cyclin-dependent kinases 4 and 6 (CDK 4/6). Up to 20 patients with Estrogen Receptor positive (ER+), Human Epidermal Growth Factor Receptor 2 negative (HER2-) metastatic breast cancer and Eastern Cooperative Oncology Group (ECOG) performance status 0-1 will be enrolled. This study involves the collection and analysis of patient samples and does not involve therapeutic intervention.


Clinical Trial Description

Endocrine therapies have been associated with an overall survival benefit in breast cancer and are the preferred initial treatment approach in patients with ER+, HER2- metastatic breast cancer. Unfortunately, resistance to endocrine therapies eventually develops in the metastatic setting and metastatic breast cancer remains an incurable disease. Endocrine resistance may develop as a result of alterations in estrogen signaling and metabolism pathways, which may be modulated by gut bacteria. In addition, genomic profiling of archival tissues and circulating tumor DNA (ctDNA) in ER+ breast cancer has identified multiple somatic molecular alterations that may mediate response to endocrine therapies. This study is designed to identify markers of endocrine resistance in ctDNA and the gut microbiome in patients with ER+ HER2- metastatic breast cancer. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04579484
Study type Observational
Source Sunnybrook Health Sciences Centre
Contact Rossanna C. Pezo, MD/PhD
Phone 416-480-4757
Email rossanna.pezo@sunnybrook.ca
Status Recruiting
Phase
Start date February 4, 2019
Completion date December 31, 2022

See also
  Status Clinical Trial Phase
Withdrawn NCT04872608 - A Study of Letrozole, Palbociclib, and Onapristone ER in People With Metastatic Breast Cancer Phase 1
Terminated NCT02202746 - A Study to Assess the Safety and Efficacy of the VEGFR-FGFR-PDGFR Inhibitor, Lucitanib, Given to Patients With Metastatic Breast Cancer Phase 2
Completed NCT02506556 - Phosphatidylinositol 3-kinase (PI3K) Alpha iNhibition In Advanced Breast Cancer Phase 2
Recruiting NCT05534438 - A Study on Adding Precisely Targeted Radiation Therapy (Stereotactic Body Radiation Therapy) to the Usual Treatment Approach (Drug Therapy) in People With Breast Cancer Phase 2
Recruiting NCT03368729 - Niraparib in Combination With Trastuzumab in Metastatic HER2+ Breast Cancer Phase 1/Phase 2
Completed NCT04103853 - Safety, Tolerability, and Pharmacokinetics of Proxalutamide Therapy in Women With Metastatic Breast Cancer Phase 1
Terminated NCT01847599 - Educational Intervention to Adherence of Patients Treated by Capecitabine +/- Lapatinib N/A
Active, not recruiting NCT03147287 - Palbociclib After CDK and Endocrine Therapy (PACE) Phase 2
Not yet recruiting NCT06062498 - Elacestrant vs Elacestrant Plus a CDK4/6 Inhibitor in Patients With ERpositive/HER2-negative Advanced or Metastatic Breast Cancer Phase 2
Recruiting NCT05383196 - Onvansertib + Paclitaxel In TNBC Phase 1/Phase 2
Recruiting NCT04095390 - A Phase Ⅱ Trial of Pyrotinib Combination With CDK4/6 Inhibitor SHR6390 in Patients Prior Trastuzumab-treated Advanced HER2-Positive Breast Cancer Phase 2
Active, not recruiting NCT04432454 - Evaluation of Lasofoxifene Combined With Abemaciclib in Advanced or Metastatic ER+/HER2- Breast Cancer With an ESR1 Mutation Phase 2
Recruiting NCT03323346 - Phase II Trial of Disulfiram With Copper in Metastatic Breast Cancer Phase 2
Recruiting NCT05744375 - Trastuzumab Deruxtecan in First-line HER2-positive Locally Advanced/MBC Patients Resistant to Trastuzumab+Pertuzumab Phase 2
Completed NCT02924883 - A Study to Evaluate the Efficacy and Safety of Trastuzumab Emtansine in Combination With Atezolizumab or Atezolizumab-Placebo in Participants With Human Epidermal Growth Factor-2 (HER2) Positive Locally Advanced or Metastatic Breast Cancer (BC) Who Received Prior Trastuzumab and Taxane Based Therapy Phase 2
Completed NCT01942135 - Palbociclib (PD-0332991) Combined With Fulvestrant In Hormone Receptor+ HER2-Negative Metastatic Breast Cancer After Endocrine Failure (PALOMA-3) Phase 3
Completed NCT01881230 - Evaluate Risk/Benefit of Nab Paclitaxel in Combination With Gemcitabine and Carboplatin Compared to Gemcitabine and Carboplatin in Triple Negative Metastatic Breast Cancer (or Metastatic Triple Negative Breast Cancer) Phase 2/Phase 3
Active, not recruiting NCT04448886 - Sacituzumab Govitecan +/- Pembrolizumab In HR+ / HER2 - MBC Phase 2
Completed NCT01401959 - Trial of Eribulin in Patients Who Do Not Achieve Pathologic Complete Response (pCR) Following Neoadjuvant Chemotherapy Phase 2
Terminated NCT04720664 - Oral SM-88 in Patients With Metastatic HR+/HER2- Breast Cancer Phase 2