NCT07054242Not yet recruitingPhase 2
A Prospective, Single-center, Phase II Study of Sacituzumab Tirumotecan in Combination With Pembrolizumab for Neoadjuvant Treatment of Triple-Negative Breast Cancer (TNBC)
Source: ClinicalTrials.gov · Last updated 1 Oct 2025 · Not updated for over 12 months - ask the site whether it is still open
Brief summary (registry, in English)
This is a prospective, single center, phase II study to enroll participants with stage II or III TNBC who have not previously undergone systemic therapy. The primary endpoint is pCR in the ITT population. The study aims to enroll 52 participants. Eligible participants will receive a combination therapy of SKB264 and Pembrolizumab. Experimental arm: SKB264 will be administered intravenously (IV) at a dose of 4 mg/kg every two weeks (Q2W); Pembrolizumab will be administered intravenously at a dose of 200mg every three weeks (Q3W) All enrolled participants will initially receive SKB264 plus Pembrolizumab for 8 weeks. Based on early imaging and biopsy assessment, patients who deemed as responders continue to receive combined drug therapy for 10 weeks, followed by surgical treatment. Patients who assessed as non-responders will be treated at the discretion of the physician. Participants will undergo regular tumor assessments based on RECIST 1.1 criteria. Imaging assessments will be conducted every 9 weeks (±1 week) for the first 18 weeks following treatment initiation, and every 12 weeks (±1 week) thereafter, until confirmed disease progression, initiation of a new antitumor treatment, withdrawal of consent, loss to follow-up, death, or study end, whichever occurs first. After termination of the study treatment, participants must complete the EOT visit and a safety follow-up, and undergo survival visits every 3 months (±14 days) post the last dose to collect information on survival, new antitumor treatments received.
- Status (registry)
- Not yet recruiting
- Phase (registry)
- Phase 2
- Study type
- Interventional
- Enrollment
- 52 (estimated)
- First submitted
- 25 May 2025
- Start date
- 30 Oct 2025
- Primary completion date
- 30 Oct 2026
- Lead sponsor
- Yantai Yuhuangding Hospital
- Diseases
- Triple-negative breast cancer
- NCT number
- NCT07054242
What you commit to
- Study type: Interventional · Phase 2
- Planned participants: 52
- From 30 Oct 2025 to the primary completion date, 30 Oct 2026
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Prior chemotherapy, targeted therapy, or radiotherapy for current breast cancer.
- Previous treatment with immune checkpoint inhibitors (anti-PD-1/L1, anti-CTLA-4) or T-cell targeting therapies.
- Prior Trop-2 directed therapy or topoisomerase I inhibitor treatment.
- Current or history of:
- Steroid-requiring interstitial lung disease/pneumoniti Unresolved ILD/pneumonitis on screening imaging
- Clinically significant pulmonary conditions including:
- Recent pulmonary embolism (≤3 months)
- Severe asthma/COPD/restrictive lung disease
- Pleural effusion requiring intervention
- Connective tissue disease with pulmonary involvement
- Prior pneumonectomy
- Active infection requiring systemic therapy within 14 days prior to initiation.
Other illness
- Other malignancies within 5 years (except adequately treated CIS of cervix, BCC, or cutaneous SCC).
- Severe ocular surface disease (dry eye syndrome, meibomian gland dysfunction, or corneal disorders impairing healing).
- Known hypersensitivity to study drug components.
- History of immunodeficiency disorders or organ transplantation.
- Active autoimmune disease requiring systemic treatment (past 2 years), except:
- Hormone replacement therapy
- Physiologic corticosteroid replacement
- Any condition that in the investigator's judgment may:
- Affect study drug evaluation
- Compromise safety assessments
- Interfere with data interpretation
- Otherwise contraindicate participation
Lab values
- LVEF \<50% by ECHO/MUGA or significant cardiac disease (NYHA Class III/IV).
Other
- Uncontrolled comorbidities that may:
- Compromise patient safety
- Interfere with study completion
Who the study is looking for
- Histologically or cytologically confirmed stage II-III (T1cN1-2 or T2-4N0-2) triple-negative breast cancer (TNBC), defined as:
- Immunohistochemistry (IHC) showing ER and PR \<1%
- HER2-negative per 2028 ASCO-CAP guidelines (IHC 0/1+ or IHC 2+/ISH-)
- Available tumor tissue sample for biomarker analysis.
- At least one measurable lesion as per RECIST 1.1 criteria.
- ECOG performance status 0-1.
- Adequate organ function as evidenced by:
- Absolute neutrophil count ≥1.5×10⁹/L (no G-CSF support within 14 days)
- Platelets ≥100×10⁹/L (no transfusion within 14 days)
- Hemoglobin \>9 g/dL (no transfusion/ESA within 14 days)
- Total bilirubin ≤1.5×ULN
- AST/ALT ≤1.5×ULN
- Alkaline phosphatase ≤2.5×ULN
- Serum creatinine ≤1.5×ULN or CrCl ≥60 mL/min (Cockcroft-Gault)
- INR/PT ≤1.5×ULN
- TSH within normal range (or normal FT3/FT4 if TSH abnormal)
- Normal cardiac enzymes (isolated abnormalities allowed if clinically insignificant)
- No prior anti-cancer therapy for current diagnosis.
- For women of childbearing potential and men with WOCBP partners: agreement to use effective contraception from screening until 6 months post-treatment.
- Willing and able to comply with study procedures and provide written informed consent.
Age in the registry: 18 years to 75 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Department of Breast Surgery, Yantai Yuhuangding Hospital Coordinator of this site? Confirm its status | Yantai | China | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.