Neuroendocrine Carcinomas

Background: Neuroendocrine neoplasms (NENs) are rare cancers in the gastrointestinal tract, pancreas, lungs, adrenal glands, and other areas of the body. Many of these cancers have a high risk of relapse and a low chance of survival. Better treatments are needed. Objective: To test a new drug, ADCT-701, in people with NENs. Eligibility: Adults aged 18 and older with NENs. Design: Participants will be screened. They will have a physical exam with blood and urine tests. They will have imaging scans and tests of heart functioning. Their ability to perform normal daily activities will be tested. A biopsy may be needed: A sample of tissue will be removed from the tumor. ADCT-701 is given through a tube attached to a needle inserted into a vein in the arm. Participants will receive the drug treatment on the first day of 21-day treatment cycles. They will visit the clinic a total of 10 times during the first two cycles. After that, they will visit the clinic 2 times during each cycle. Imaging scans, blood draws, heart function tests, and other tests will be repeated during study visits. Each visit will last up to 8 hours. Participants may continue receiving treatment with the study drug for up to 2 years. After treatment ends, participants will have follow-up clinic visits 4 times in 4 months. They will have a physical exam, with heart and blood tests, at each visit. After that, they will have follow-up clinic visits every 9 weeks; these visits will include imaging scans. Follow-up visits will continue for up to 5 years after treatment began....

This is Phase 1/2, multicenter, clinical study to evaluate the safety, efficacy, PK, and immunogenicity of IDE849 in subjects with DLL3-expressing tumors including SCLC.

This observational, retrospective study aims to understand the treatment patterns and outcomes of patients with pulmonary and extra-pulmonary neuroendocrine carcinomas (NEC) in Latin America (Brazil, Mexico, Argentina, and Peru). The research will collect data from medical records to analyze factors like patient demographics, diagnosis methods, tumor characteristics, treatment approaches, and disease progression. The study is non-interventional, meaning patient care will follow standard clinical practice, with data gathered via an electronic system.