Neoplasms (Cancer / Tumors)

The WARNING project proposes a new care organisation for older patients with cancer. The aim is to optimise management in daycare with early detection signs of geriatric syndromes and specific interventions. This prevention package, called the 'WARNING Pack', includes a specific multimodal geriatric management guide for the oncologist (physician form), based on patient-reported early geriatric warning signs (patient form). Primary outcome is to reduce the risk of deterioration in global quality of life at 6 months during treatment and to prevent the onset of geriatric syndromes.

The goal of this clinical trial is to learn if Trastuzumab Rezetecan can treat advanced solid tumors with HER-2 expression in adult participants. The main question it aims to answer is: What is the objective response rate of Trastuzumab Rezetecan in adult patients with HER-2 expressed advanced solid tumors? Participants will receive intravenous infusion of Trastuzumab Rezetecan on Day 1 of each 21-day treatment cycle. The dosage is 4.8 mg/kg per cycle; participants with a body weight of 85 kg or above will receive a fixed dose of 408 mg every 3 weeks.