The study purpose is to establish the safety and tolerability of IMA203 product in patients with solid tumors that express preferentially expressed antigen in melanoma (PRAME).

Solide Tumoren Nicht-Kleinzelliges Bronchialkarzinom (NSCLC) Kleinzelliges Bronchialkarzinom (SCLC) Malignes Melanom Ovarialkarzinome (Eierstockkrebs) Kopf-Hals-Karzinom

• Pathologically confirmed advanced and/or metastatic solid tumor
• Patients may enter screening procedure before, during, or after the last available indicated standard of care treatment. There is no limitation for prior anti cancer treatments.
• Eastern Cooperative Oncology Group (ECOG) performance status 0-1
• HLA phenotype positive
• Measurable disease and accessible to biopsy
• Adequate pulmonary function per protocol
• Acceptable organ and bone marrow function per protocol
• Acceptable coagulation status per protocol
• Adequate hepatic function per protocol
• Serum creatinine within normal range for age OR creatinine clearance with a recommended estimated glomerular filtration rate ≥ 50 mL/min/1.73 m2
• Patient's tumor must express tumor antigen by qPCR using a fresh tumor biopsy specimen
• Life expectancy more than 3 months
• Confirmed availability of production capacities for IMA203 product
• Patients must have recurrent/progressing and/or refractory solid tumors and must have received or not be eligible for all available indicated standard of care treatment.

• History of other malignancies (except for adequately treated basal or squamous cell carcinoma or carcinoma in situ) within the last 3 years
• Solid tumors with low likelihood of tumor biomarker expression per protocol
• Pregnant or breastfeeding
• Serious autoimmune disease Note: At the discretion of the investigator, these patients may be included if their disease is well controlled without the use of immunosuppressive agents.
• History of cardiac conditions as per protocol
• Prior stem cell transplantation or solid organ transplantation