Breast cancer clinical trials near Quebec City
23 recruiting trials in the official registry · updated September 2026 · free · no account · no tracking · English & français
Searches within 160 km deliberately include sites across the US border — often a Canadian patient's nearest option.
Search near your location →A Study of Sacituzumab Tirumotecan (MK-2870) as a Single Agent and in Combination With Pembrolizumab (MK-3475) Versus Treatment of Physician's Choice in Participants With HR+/HER2- Unresectable Locally Advanced or Metastatic Breast Cancer (MK-2870-010)
Recruiting nowPhase 3259 sites
The purpose of this study is to compare sacituzumab tirumotecan as a single agent, and in combination with pembrolizumab, versus Treatment of Physician's Choice (TPC) in participants with hormone receptor positive/human epidermal growth fac…
A Clinical Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) in People With Breast Cancer (MK-2870-032)
Recruiting nowPhase 3321 sites
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…
A Study of Tersolisib (LY4064809/STX-478) With Other Anti-Cancer Treatments in Participants With Advanced Breast Cancer With a Genetic Change (PIK3CA)
Recruiting nowPhase 3359 sites
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 recepto…
A Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) as Monotherapy and in Combination With Pembrolizumab (MK-3475) in Participants With Triple-Negative Breast Cancer (MK-2870-011/TroFuse-011)
Recruiting nowPhase 3274 sites
Researchers want to know if sacituzumab tirumotecan given alone or with pembrolizumab can treat triple negative breast cancer (TNBC). The main goal of this study is to learn if people treated with sacituzumab tirumotecan alone or with pembr…
A Randomized Trial of Five Fraction Partial Breast Irradiation (RAPID2)
Recruiting nowPhase 330 sites
The primary objective of this study is to determine in women with node negative BC ≤3cm in size, if PBI compared to WBI, both given once-a-day over 1 week following BCS, is non-inferior for LR and reduces adverse cosmesis. The primary outco…
Radiation OmisSion in PAtients With CLinically Node Negative Breast Cancer Undergoing Lumpectomy
Recruiting now27 sites
To de-escalate radiation therapy in women with breast cancer.
EXActDNA-003 / NSABP B-64: Study of Molecular Residual Disease Detection in Breast Cancer (MRD)
Recruiting now58 sites
The EXActDNA-003 study will prospectively enroll participants who are planning to undergo chemotherapy for high-risk, early breast cancer, who are willing to provide tissue and blood specimens for circulating tumor DNA (ctDNA) analysis. Pa…
A Study of Elacestrant Versus Standard Endocrine Therapy in Women and Men With ER+,HER2-, Early Breast Cancer With High Risk of Recurrence
Recruiting nowPhase 3562 sites
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 br…
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.
Recruiting nowPhase 3202 sites
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…
A Phase III Study of Dato-DXd With or Without Durvalumab Compared With Investigator's Choice of Chemotherapy in Combination With Pembrolizumab in Patients With PD-L1 Positive Locally Recurrent Inoperable or Metastatic Triple-negative Breast Cancer (TROPION-Breast05)
Recruiting nowPhase 3320 sites
This is a Phase III, randomised, open-label, 3-arm, multicentre, international study assessing the efficacy and safety of Dato-DXd with or without durvalumab compared with investigator's choice chemotherapy in combination with pembrolizumab…
Common questions
How do I find a breast cancer clinical trial near me in Canada?
Use Beacon's free search: enter "breast cancer", your age, and your location, and you'll see recruiting trials sorted by distance, each explained in plain language — including sites just across the US border. Beacon searches the full official registry and never requires an account.
Does joining a clinical trial cost money?
The study treatment and study-related tests are usually provided at no cost, and some trials help with travel. In Canada, your provincial health coverage continues to apply to your routine care — always confirm details with the study team.
Can I leave a clinical trial after joining?
Yes. Participation is always voluntary, and you can leave a trial at any time, for any reason, without losing your normal medical care.
Do I qualify for these trials?
Every trial has its own eligibility criteria. Beacon translates each trial's criteria into a plain-language checklist you can review and bring to your doctor — only the study team can confirm whether you qualify.
Page updated September 2026.