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Clinical trials · failure tracking
Oncology studies whose overall status is TERMINATED, WITHDRAWN or SUSPENDED on ClinicalTrials.gov, with the stop reason exactly as the registrant posted it. A category is attached only when an explicit keyword rule matches the text; CancerIndex never infers why a study stopped.
3 stopped studies mapped to Extrapulmonary Small Cell Neuroendocrine Carcinoma and descendants · 100% state a reason
Over the 3 studies matching the cancer, status and year filters (the category filter does not change this chart). Each study is counted once, in the first matching category; greyed bars are studies whose text matched no rule or was empty.
Computedrules ci-stop-reasons-v1 · keyword matching only
A category is assigned when one of its keywords appears in the posted text (case-insensitive, whole words). Rules are tested in this order and the first match wins; every match is kept in the API (reasonMatches).
| NCT | Title | Phase | Status | First posted | Lead sponsor | Why stopped (as posted) | Category |
|---|---|---|---|---|---|---|---|
| NCT04754425 | Erdafitinib for the Treatment of Patients With Castration-Resistant Prostate Cancer | Phase 2 | terminated | Feb 15, 2021 | M.D. Anderson Cancer Center | \<75% participation | Other (stated, no rule matched) |
| NCT06094842 | Autologous T Cells Lentivirally Transduced to Express L1CAM-Specific Chimeric Antigen… | Phase 1 | withdrawn | Oct 23, 2023 | Fred Hutchinson Cancer Center | Study closed before opening to accrual | Enrollment / accrual |
| NCT03649841 | Antiandrogen Therapy, Abiraterone Acetate, and Prednisone With or Without Neutron… | Phase 2 | terminated | Aug 28, 2018 | University of Washington | Terminated due to low accrual. | Enrollment / accrual |
Stop reasons are registrant-reported free text and are displayed verbatim (truncated; hover for the full text). Categories come from explicit keyword rules and are never inferred from the study design, sponsor or outcome; a study that stopped for several reasons is filed under the first rule that matched. A TERMINATED status does not imply a negative result.
Data updated 22 days agoSource updated Feb 6, 2026source: clinicaltrials