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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Oncology studies whose overall status is TERMINATED, WITHDRAWN or SUSPENDED on ClinicalTrials.gov, with the stop reason exactly as the registrant posted it.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.
5 stopped studies mapped to Cigarette Smoking-Related Carcinoma and descendants · 100% state a reason
Over the 5 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 |
|---|---|---|---|---|---|---|---|
| NCT06754215 | Smoking Cessation Intervention Development for Homeless Youth | N/A | terminated | Dec 31, 2024 | Ohio State University Comprehensive Cancer Center | The study did not progress to full completion due to an unanticipated prolonged medical leave of… | Investigator |
| NCT05051345 | Increasing Access to Smoking Cessation and Smoke Free Home Services for Low-Income… | N/A | terminated | Sep 21, 2021 | M.D. Anderson Cancer Center | \< 75% participation | Other (stated, no rule matched) |
| NCT06010355 | Culturally Tailored Educational Video to Promote Lung Cancer Screening in Vulnerable… | N/A | terminated | Aug 24, 2023 | Thomas Jefferson University | Trial is terminated due to lack of staffing | Other (stated, no rule matched) |
| NCT06386432 | EQQUAL-NM for the Promotion of Smoking Cessation in Sexual and Gender Minority Young… | N/A | withdrawn | Apr 26, 2024 | Fred Hutchinson Cancer Center | Study never opened to accrual and will not proceed due to lack of funding. | Enrollment / accrual |
| NCT05024955 | Evaluating Shared Decision-Making for Lung Cancer Screening Among Chinese Populations in… | — | withdrawn | Aug 27, 2021 | M.D. Anderson Cancer Center | 0 participants accrued | Enrollment / accrual |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 Aug 20, 2026source: clinicaltrials