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OncoMatch/Clinical Trials/NCT07188246

Neoadjuvant, SBRT With Intratumoural Pembrolizumab Followed by Neoadjuvant Chemotherapy in Breast Cancer

Is NCT07188246 recruiting? Yes, currently enrolling (May 2026). This Phase 2 trial studies Pembrolizumab (KEYTRUDA®) for breast cancer.

Phase 2RecruitingLondon Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph'sNCT07188246Data as of May 2026

Treatment: Pembrolizumab (KEYTRUDA®)This study will evaluate the immune-priming effects of stereotactic body radiation therapy (SBRT) regimen coupled with two injections of pembrolizumab in high-risk primary breast carcinoma prior to neoadjuvant chemotherapy. Preliminary results from the investigators' local TRIO Trial suggest that SBRT prior to neoadjuvant chemotherapy (NAC) may result in improved response rates due to the combined effect of radiation therapy (RT) and chemotherapy. The investigators aim to augment this effect with the addition of pembrolizumab, a monoclonal antibody that binds to and blocks programmed cell death protein 1 (PD-1).

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Extracted eligibility criteria

Cancer type

Breast Carcinoma

Disease stage

Required: Stage IIB, III (AJCC 8th edition)

Excluded: Stage INFLAMMATORY BREAST CANCER

Invasive mammary carcinoma of stages IIB - III (excluding inflammatory breast cancer). Stage IIA is eligible for triple negative and HER2+ breast cancers.

Prior therapy

No prior treatment (treatment-naive required)
Max 0 prior lines

Cannot have received: any treatment for current breast cancer

Prior treatment for current breast cancer.

Cannot have received: radiation therapy to the same breast

Previous radiation therapy to the same breast.

Cannot have received: stem cell transplantation

No prior stem cell transplantation.

Structured fields extracted by AI. May contain errors — verify against the official protocol.

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