Institut fr Klinische Krebsforschung IKF GmbH

This is a low-intervention, randomized, non-comparative, open-label, multicenter, prospective, phase II trial investigating discontinuation of CDK4/6 inhibitors in patients with metastatic HR positive, HER2 negative breast cancer with durable disease control.

Chemotherapy with Trabectedin is an effective treatment for sarcoma patients in the second line setting or in first line for patients who are deemed unsuitable to receive anthracycline therapy. The prospective study will primarily investigate the PRO of Trabectedin rechallenge in patients with soft tissue sarcomas that had to discontinue initial Trabectedin treatment due to various reasons such as progression, side effects or surgery, as is commonly the case in real-life settings. Embedding this trial in the GISAR registry enables the evaluation of a large number of patients with long-term follow-up which allows multiple analyses regarding different questions that remain unanswered until today.