Clinical trials · failure tracking

Terminated, withdrawn and suspended studies

Oncology studies whose overall status is TERMINATED, WITHDRAWN or SUSPENDED on ClinicalTrials.gov, with the stop reason exactly as the registrant posted it.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 Retroperitoneal Sarcoma and descendants · 100% state a reason

Stated reasons by category

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

Classification rules

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).

COVID-19 / pandemic — covid · pandemic
Safety / toxicity — safety · toxicity · adverse
Efficacy / futility — efficacy · futility · lack of benefit · interim analysis
Drug supply — supply · drug availability · manufacturing
Investigator — PI left · investigator
Enrollment / accrual — accrual · enrollment / enrolment · recruitment
Funding — funding · financial · budget
Sponsor / business decision — business · sponsor decision · strategic · portfolio · company
Other (stated, no rule matched) — text present, no keyword matched

clinicaltrialsObservedShowing 1–3 of 3 studies, most recently updated first

NCT	Title	Phase	Status	First posted	Lead sponsor	Why stopped (as posted)	Category
NCT05174455	Niraparib for the Treatment of Leiomyosarcoma	Phase 2	withdrawn	Dec 30, 2021	David Liebner, MD	PI decision	Other (stated, no rule matched)
NCT05302570	Neoadjuvant Short-course Hypofractionated PBT for Non-metastatic RPS(PROTONS-RPS)	Phase 2	withdrawn	Mar 31, 2022	Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins	withdrawn by PI	Other (stated, no rule matched)
NCT00901836	Preoperative Proton Radiotherapy for Retroperitoneal Sarcoma(SA03)	N/A	terminated	May 14, 2009	University of Florida	Study closed due to feasability	Other (stated, no rule matched)

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 Sep 18, 2023source: clinicaltrials