Loading clinical trials…
Loading clinical trials…
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Oncology studies whose overall status is TERMINATED, WITHDRAWN or SUSPENDED on ClinicalTrials.gov, with the stop reason exactly as the registrant posted it.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.
401 stopped studies mapped to Breast Carcinoma and descendants · 95% state a reason
Over the 401 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 |
|---|---|---|---|---|---|---|---|
| NCT07134556 | Phase II Trial Evaluating the Safety and Efficacy of the Combination of Zimberelimab,…(ADJUNCT) | Phase 2 | withdrawn | Aug 21, 2025 | MedSIR | The interim analysis of the STAR-221 study showed that the domvanalimab combination did not improve… | Safety / toxicity |
| NCT06456411 | Functional Near-Infrared Spectroscopy and Virtual Reality Relaxation Programs for Pain… | N/A | terminated | Jun 13, 2024 | Roswell Park Cancer Institute | PI left | Investigator |
| NCT06630325 | A Precision Medicine Approach (SMMART-ACT) for the Treatment of Patients With Advanced… | Phase 2 | terminated | Oct 8, 2024 | OHSU Knight Cancer Institute | Loss of support. | Other (stated, no rule matched) |
| NCT02874430 | Metformin Hydrochloride and Doxycycline in Treating Patients With Localized Breast or… | Phase 2 | terminated | Aug 22, 2016 | Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University | study closed early due to slow accrual | Enrollment / accrual |
| NCT02856503 | Effect of High Dose Vitamin D on Cancer Biomarkers and Breast Cancer Tumors | Phase 1 / Phase 2 | withdrawn | Aug 5, 2016 | Eli Avisar, MD | Lack of Funding | Funding |
| NCT05488145 | A Feasibility Trial of a Web Based App Intervention in Hormone Positive Breast Cancer… | N/A | terminated | Aug 4, 2022 | Emory University | Insufficient Staff | Other (stated, no rule matched) |
| NCT05547347 | Safety, Ultrasound Conspicuity, and Migration of Twinkling Markers in Patients With… | — | suspended | Sep 21, 2022 | Mayo Clinic | Pending biocompatibility testing | Other (stated, no rule matched) |
| NCT04234113 | Study of Nanrilkefusp Alfa Alone and With Pembrolizumab in Adult Patients With… | Phase 1 | terminated | Jan 21, 2020 | SOTIO Biotech AG | Due to lack of efficacy shown at the time of the interim analysis. | Efficacy / futility |
| NCT04789668 | Bintrafusp Alfa and Pimasertib for the Treatment of Patients With Brain Metastases | Phase 1 / Phase 2 | terminated | Mar 9, 2021 | M.D. Anderson Cancer Center | Insufficient accrual | Enrollment / accrual |
| NCT05742269 | Molecular PD-L1 PET/CT Imaging With 89Zr-atezolizumab in Metastatic Triple Negative…(MIMIR-mTNBC) | — | terminated | Feb 23, 2023 | Karolinska University Hospital | Slow patient accrual; decreasing use of IMP. | Enrollment / accrual |
| NCT06229392 | A Study to Evaluate the Intratumoral Influenza Vaccine Administration in Patients With… | Phase 1 | withdrawn | Jan 29, 2024 | Rush University Medical Center | Internal operational issues prevented the study site from opening to enrollment. | Enrollment / accrual |
| NCT03868475 | Comparing Vacuum-Assisted Percutaneous Excision to Open Surgical Excision for Borderline…(VAPEX) | N/A | withdrawn | Mar 11, 2019 | London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's | Publication of only protocol desired | Other (stated, no rule matched) |
| NCT05554354 | Testing the Use of Fulvestrant and Binimetinib Targeted Treatment for NF1 Mutation in… | Phase 2 | terminated | Sep 26, 2022 | National Cancer Institute (NCI) | Other - slow accrual | Enrollment / accrual |
| NCT06315296 | An Interactive Time-Restricted Diet Intervention (txt4fasting) for Reducing… | N/A | terminated | Mar 18, 2024 | Thomas Jefferson University | slow accrual | Enrollment / accrual |
| NCT03801369 | AMTEC IIT: Phase 2 Multiarm Study in TNBC | Phase 2 | terminated | Jan 11, 2019 | Gordon Mills, MD, PhD | loss of funding | Funding |
| NCT03101748 | Neratinib and Paclitaxel With or Without Pertuzumab and Trastuzumab Before Combination… | Phase 1 / Phase 2 | terminated | Apr 5, 2017 | M.D. Anderson Cancer Center | \<75% accrued | Enrollment / accrual |
| NCT06585969 | A Randomised Trial Comparing Trastuzumab Deruxtecan to CDK4/6 Inhibitors in Non-luminal…(DISCORDANT) | Phase 3 | withdrawn | Sep 19, 2024 | Danish Breast Cancer Cooperative Group | Lack of funding | Funding |
| NCT07226102 | Virtual Mental Health Intervention to Address Fear of Progression for Women With High… | N/A | withdrawn | Nov 10, 2025 | City of Hope Medical Center | slow accrual | Enrollment / accrual |
| NCT04095689 | Docetaxel Chemotherapy and Pembrolizumab Plus Interleukin-12 Gene Therapy in Triple…(INTEGRAL) | Phase 2 | terminated | Sep 19, 2019 | The Methodist Hospital Research Institute | Stopping rules met per protocol, trial will be terminated | Other (stated, no rule matched) |
| NCT04260802 | A Study to Evaluate the Safety and Pharmacokinetics of OC-001 in Patients With Locally… | Phase 1 / Phase 2 | terminated | Feb 7, 2020 | Ocellaris Pharma, Inc. | Business Decision | Sponsor / business decision |
| NCT04770272 | Study to Compare a Mono Atezolizumab Window Followed by a Atezolizumab - CTX Therapy With…(neoMono) | Phase 2 | terminated | Feb 25, 2021 | Palleos Healthcare GmbH | The trial stopped recruitment prematurely after a first planned interim analysis of the first 100… | Efficacy / futility |
| NCT05194072 | A Study of Felmetatug Vedotin/SGN-B7H4V in Advanced Solid Tumors | Phase 1 | terminated | Jan 18, 2022 | Seagen, a wholly owned subsidiary of Pfizer | The trial was terminated for strategic reasons. The decision was not based on any safety and/or… | Safety / toxicity |
| NCT03746431 | A Phase 1 Study of [225Ac]-FPI-1434 Injection | Phase 1 | terminated | Nov 19, 2018 | Fusion Pharmaceuticals Inc. | A strategic decision was made to discontinue the study and prioritize other programs within the… | Safety / toxicity |
| NCT04578106 | Omission of Surgery in Clinically Low-risk HER2positive Breast Cancer With High HER2…(ELPIS) | Phase 2 | terminated | Oct 8, 2020 | Fundacio Clinic Barcelona | The study was prematurely halted primarily due to low patient accrual. Despite efforts to optimize… | Enrollment / accrual |
| NCT06408168 | Phase II Study of REPotrectinib With or Without Fulvestrant in Patients With Hormone… | Phase 2 | terminated | May 10, 2024 | M.D. Anderson Cancer Center | \<75% Participation | Other (stated, no rule matched) |
| NCT05553522 | Tucatinib, Trastuzumab, and Capecitabine With SRS for Brain Metastases From HER-2… | Phase 1 | terminated | Sep 23, 2022 | Baptist Health South Florida | Slow enrollment | Enrollment / accrual |
| NCT04986852 | Olinvacimab With Pembrolizumab in Patients With mTNBC | Phase 2 | terminated | Aug 3, 2021 | PharmAbcine | Subject recruitment issues and follow-up study plans | Enrollment / accrual |
| NCT03225547 | Study of Pembrolizumab and Mifepristone in Patients With Advanced HER2-negative Breast… | Phase 2 | terminated | Jul 21, 2017 | University of Chicago | side effects (rash) | Other (stated, no rule matched) |
| NCT03955640 | Hyperthermia and Olaparib in Treating Breast Cancer Patients With Chest Wall Recurrences | Phase 1 | terminated | May 20, 2019 | Thomas Jefferson University | PI decided not to move forward because of low accrual | Enrollment / accrual |
| NCT05583110 | Efficacy and Safety of the Combination of Trastuzumab Plus TUCAtinib Plus viNorelbine in…(TrasTUCAN) | Phase 2 | terminated | Oct 17, 2022 | Spanish Breast Cancer Research Group | The study was closed early due to safety concerns and an unfavorable benefit-risk balance.… | Safety / toxicity |
| NCT04725331 | A Clinical Trial Assessing BT-001 Alone and in Combination With Pembrolizumab in… | Phase 1 / Phase 2 | terminated | Jan 26, 2021 | Transgene | Sponsor decision following completion of Phase I part not driven by safety reason | Safety / toxicity |
| NCT05954143 | Trial of BDC-1001 +/- Pertuzumab in Subjects With HER2-Positive Metastatic Breast Cancer | Phase 2 | terminated | Jul 20, 2023 | Bolt Biotherapeutics, Inc. | Sponsor Decision | Sponsor / business decision |
| NCT06052852 | Study of BDC-3042 as Single Agent and in Combination With Cemiplimab in Patients With… | Phase 1 | terminated | Sep 25, 2023 | Bolt Biotherapeutics, Inc. | Sponsor decision | Sponsor / business decision |
| NCT02936102 | A Study of FAZ053 Single Agent and in Combination With PDR001 in Patients With Advanced… | Phase 1 | terminated | Oct 18, 2016 | Novartis Pharmaceuticals | The early termination was based on a business decision that FAZ053 would no longer be formulated… | Safety / toxicity |
| NCT07178665 | Pilot Trial of Preop Partial Radiation in Breast Cancer Patients | Phase 1 | suspended | Sep 17, 2025 | Rutgers, The State University of New Jersey | 10th patient enrolled; interim analysis to be completed by HROC after 3-month follow-up completed… | Efficacy / futility |
| NCT03979508 | Abemaciclib in Treating Patients With Surgically Resectable, Chemotherapy Resistant,… | Phase 2 | terminated | Jun 7, 2019 | Mayo Clinic | The primary biomarker (CD8/FOXP3) was rarely observed to be \< 1.6 in residual tumors examined in… | Other (stated, no rule matched) |
| NCT04504916 | A Study of Zilovertamab Vedotin (MK-2140/VLS-101) in Participants With Solid Tumors… | Phase 2 | terminated | Aug 7, 2020 | VelosBio Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA) | Business reasons | Sponsor / business decision |
| NCT05252390 | NUV-868 as Monotherapy and in Combination With Olaparib or Enzalutamide in Adult Patients… | Phase 1 | terminated | Feb 23, 2022 | Nuvation Bio Inc. | The Sponsor has achieved its objectives. | Other (stated, no rule matched) |
| NCT04958785 | Study of Magrolimab Combination Therapy in Patients With Non-Surgically Removable Locally…(ELEVATE TNBC) | Phase 2 | terminated | Jul 12, 2021 | Gilead Sciences | Sponsor decision to terminate study. | Sponsor / business decision |
| NCT04419181 | Feasibility of Chemotherapy De-escalation in Early-Stage HER2 Positive Breast Cancer | Phase 2 | withdrawn | Jun 5, 2020 | University of Rochester | Change in the landscape of current treatment of early stage breast cancer. Larger clinical trials… | Other (stated, no rule matched) |
| NCT04794816 | What Women Want: Real Time Results During Screening Mammography in the Era of… | — | withdrawn | Mar 12, 2021 | M.D. Anderson Cancer Center | 0 participants | Other (stated, no rule matched) |
| NCT03901469 | A Study of ZEN003694 and Talazoparib in Patients With Triple Negative Breast Cancer(TNBC) | Phase 2 | terminated | Apr 3, 2019 | Zenith Epigenetics | Parts 1 and 2 and Expansion Cohort C were completed. Expansion Cohorts A and B were discontinued… | Safety / toxicity |
| NCT04108858 | Testing the Addition of an Anti-cancer Drug, Copanlisib, to the Usual Maintenance… | Phase 1 / Phase 2 | terminated | Sep 30, 2019 | National Cancer Institute (NCI) | Inadequate accrual rate | Enrollment / accrual |
| NCT03535506 | Preoperative Palbociclib in Patients With DCIS of the Breast That Are Candidates for…(WI223281) | Phase 2 | terminated | May 24, 2018 | Georgetown University | lack of accrual | Enrollment / accrual |
| NCT06264921 | A Study With NKT3447 for Adults With Advanced/Metastatic Solid Tumors | Phase 1 | terminated | Feb 20, 2024 | NiKang Therapeutics, Inc. | This study was terminated as a result of Sponsor portfolio reprioritization. | Sponsor / business decision |
| NCT06672224 | Indocyanine Green Fluoroscopy and SPY Angiography for the Assessment of Lymphatic… | N/A | withdrawn | Nov 4, 2024 | City of Hope Medical Center | low accrual | Enrollment / accrual |
| NCT04249622 | Rifaximin for the Treatment of Gastrointestinal Toxicities Related to Pertuzumab-Based… | Phase 2 | terminated | Jan 31, 2020 | Mayo Clinic | slow accrual | Enrollment / accrual |
| NCT04278144 | A First-in-human Study Using BDC-1001 as a Single Agent and in Combination With Nivolumab… | Phase 1 / Phase 2 | terminated | Feb 20, 2020 | Bolt Biotherapeutics, Inc. | Sponsor Decision | Sponsor / business decision |
| NCT07166367 | Phase II Study to Assess the Efficacy of ASLAN001 Plus Capecitabine in CNS Metastases for… | Phase 2 | terminated | Sep 10, 2025 | National Cancer Centre, Singapore | Difficulty in enrolling patients with the illness under study. | Enrollment / accrual |
| NCT03838367 | Leronlimab (PRO 140) Combined With Carboplatin in Patients With Cytokine Chemokine… | Phase 1 / Phase 2 | terminated | Feb 12, 2019 | CytoDyn, Inc. | Study terminated prematurely due to business reasons. Participants are no longer examined or… | Sponsor / business decision |
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 23 days agoSource updated May 1, 2026source: clinicaltrials