Clinical Research Directory

Cryoablation Versus Lumpectomy in Early-Stage Breast Cancer

The goal of this randomised controlled trial is to compare ipsilateral breast cancer recurrence rates in patients with early-stage breast cancer between patients treated with breast conserving surgery and patient treated with percutaneous cryo-ablation.

CDK4/6 Inhibitors Combined With Endocrine Therapy for Neoadjuvant Treatment

Exploring the dynamics of ctDNA following neoadjuvant therapy with CDK4/6 inhibitors combined with endocrine treatment, and its potential to guide de-escalation of adjuvant chemotherapy

ctDNA-Guided De-Escalation of Adjuvant Chemotherapy With Dalpiciclib in HR-Positive/HER2-Negative Breast Cancer

* This is a Phase II, multicenter, randomized clinical trial evaluating a ctDNA-guided approach to de-escalate adjuvant chemotherapy in patients with hormone receptor (HR)-positive, HER2-negative early-stage breast cancer. The study aims to determine if combining the CDK4/6 inhibitor Dalpiciclib with endocrine therapy can reduce the need for chemotherapy while maintaining clinical benefits. * Key Details ： 1. Participants: 393 women (aged 18-75) with early-stage HR+/HER2- breast cancer at high risk of recurrence (e.g., tumor size ≥2 cm, lymph node involvement, or high-grade tumors). 2. Design: Patients are randomized 1:4 to two groups: Group A (Chemotherapy) : Receives 4 cycles of taxane-based chemotherapy before surgery. Group B (Experimental) : Receives Dalpiciclib + aromatase inhibitor (AI) for 4 cycles pre-surgery. Post-surgery, treatment is adjusted based on ctDNA results. 3. Primary Goals ： Assess ctDNA clearance rate (conversion from detectable to undetectable ctDNA) after neoadjuvant therapy in Group B. Evaluate 3-year event-free survival (EFS) in Group B (e.g., freedom from cancer recurrence, progression, or death). Secondary Goals ： Safety of Dalpiciclib + endocrine therapy. Tumor response rates (e.g., complete cell cycle arrest, pathological remission). Correlation between ctDNA clearance and long-term outcomes. * Why This Matters ： Current guidelines recommend chemotherapy for high-risk HR+ breast cancer, but it often causes significant side effects. This study explores a personalized approach using ctDNA-a blood-based biomarker-to identify patients who may safely avoid chemotherapy without compromising survival. If successful, it could shift clinical practice toward less toxic, targeted therapies for eligible patients.

COGNITION: Genomics-Guided Precision Oncology in Early High-Risk Breast Cancer

The COGNITION diagnostic platform elucidates the biomarker profile of neoadjuvant chemotherapy-resistant residual bulk tumors in high risk early breast cancer patients. The major goal is to provide a framework for genomic profiling, which serves as infrastructure for systematic biomarker-screening and -stratification for concise therapy-arm allocation in the interventional clinical phase II trial COGNITION-GUIDE (NCT05332561). In patients, who display a poor response to standard-of-care neoadjuvant chemotherapy, tissue samples before and after neoadjuvant therapy are subjected together with blood samples to comprehensive genomic profiling to identify patients potentially benefiting from biomarker-guided interventions in COGNITION-GUIDE. Samples not required for standard-of-care clinical procedures or genomic profiling are systematically collected in a dedicated bio-repository to fuel translational scientific companion programs. The continuously growing comprehensive database serves as an integrative resource for systematic, prospective multidimensional data collection (clinical records, biomaterial, genomic data). In summary, the overarching goal is to generate a precision oncology platform i) to identify clinically-actionable biomarkers and drug targets that drive genomics-guided therapies and ii) to couple the observational, diagnostic registry platform to the independent, biomarker-stratified clinical therapy trial COGNITION-GUIDE.