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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Oncology studies whose overall status is TERMINATED, WITHDRAWN or SUSPENDED on ClinicalTrials.gov, with the stop reason exactly as the registrant posted it.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.
55 stopped studies mapped to HER2-Positive Breast Carcinoma and descendants · 95% state a reason
Over the 55 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 |
|---|---|---|---|---|---|---|---|
| NCT05378464 | Adoptive T Cell Therapy Following HER2-Pulsed Dendritic Cell Vaccine & Pepinemab… | Phase 1 | suspended | May 18, 2022 | H. Lee Moffitt Cancer Center and Research Institute | Wait for the DLT period with our current patient and will not be enrolling any more. | Enrollment / accrual |
| NCT04273555 | Monitoring Early Response to Targeted Therapy in Stage IV HER2+ Breast Cancer Patients… | Phase 1 / Phase 2 | withdrawn | Feb 18, 2020 | University of Alabama at Birmingham | Unable to recruit for this study. | Enrollment / accrual |
| NCT07136493 | Circulating Tumor DNA Based Minimal Residual Disease Detection for Patients With… | N/A | withdrawn | Aug 22, 2025 | City of Hope Medical Center | Funding This study has been closed at City of Hope at the request of the Sponsor due to delays and… | Funding |
| NCT05514717 | A Study of XMT-2056 in Advanced/Recurrent Solid Tumors That Express HER2 | Phase 1 | terminated | Aug 24, 2022 | Day One Biopharmaceuticals, Inc. | Development discontinued. | Other (stated, no rule matched) |
| NCT03199885 | Testing the Drug Atezolizumab or Placebo With Usual Therapy in First-Line HER2-Positive… | Phase 3 | terminated | Jun 27, 2017 | National Cancer Institute (NCI) | Inadequate accrual rate | Enrollment / accrual |
| NCT06844669 | HER2HEART-US: Prevention of Cardiotoxicity in Breast Cancer Patients Receiving… | Phase 2 | terminated | Feb 25, 2025 | Washington University School of Medicine | Futility | Efficacy / futility |
| NCT03738553 | Multiparametric MRI for Assessing Breast Cancer Response to Anti-HER2 Therapy | — | terminated | Nov 13, 2018 | University of Washington | Study closed to accrual after meeting grant enrollment goal, prior to reaching protocol accrual… | Enrollment / accrual |
| 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 |
| 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 |
| 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 |
| 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 |
| 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) |
| 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 |
| 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 |
| NCT04042051 | Copanlisib in Combination With T-DM1 in Pretreated Unresectable Locally Advanced or…(Panthera) | Phase 1 | terminated | Aug 1, 2019 | Cancer Trials Ireland | Accrual rate to date was too low to finish the trial in a reasonable timeframe | Enrollment / accrual |
| NCT01722890 | CharactHer. ICORG 12-09, V3 | — | terminated | Nov 7, 2012 | Cancer Trials Ireland | As per the HRBs new funding model, HRBs investment will not support costs associated with routine… | Funding |
| NCT05511844 | Study of ORM-5029 in Subjects With HER2-Expressing Advanced Solid Tumors | Phase 1 | terminated | Aug 23, 2022 | Orum Therapeutics USA, Inc. | Sponsor Decision | Sponsor / business decision |
| NCT04789096 | Tucatinib Together With Pembrolizumab and Trastuzumab(TUGETHER) | Phase 2 | terminated | Mar 9, 2021 | Breast Cancer Trials, Australia and New Zealand | Stopped on the recommendation of the BCT Independent Data and Monitoring Committee | Other (stated, no rule matched) |
| NCT05555251 | BI-1607 in Combination with Trastuzumab in Subjects with HER2-positive Advanced Solid…(CONTRAST) | Phase 1 / Phase 2 | terminated | Sep 26, 2022 | BioInvent International AB | After the completion of phase IA, for business reasons it was decided to terminate the study. | Sponsor / business decision |
| NCT04675827 | De-escalation Adjuvant Chemo in HER2+/ER-/node-neg Early BC Patients Who Achieved PCR…(Decrescendo) | Phase 2 | terminated | Dec 19, 2020 | Jules Bordet Institute | Serious concerns on the slow recruitment of the study that impacts the robustness of the scientific… | Enrollment / accrual |
| NCT04120246 | Alpha-TEA and Trastuzumab for the Treatment of Refractory HER2+ Metastatic Breast Cancer | Phase 1 | suspended | Oct 9, 2019 | Veana Therapeutics | Study placed on hold. | Other (stated, no rule matched) |
| NCT03709082 | Palbociclib in Estrogen Receptor Positive (ER+) Human Epidermal Growth Factor Receptor 2… | Phase 1 / Phase 2 | terminated | Oct 17, 2018 | University of Kansas Medical Center | Low accrual | Enrollment / accrual |
| NCT05474690 | A Study Comparing the Efficacy of TCbHP and ECHP-THP in the Neoadjuvant Treatment of… | Phase 3 | withdrawn | Jul 26, 2022 | Henan Cancer Hospital | The new treatment plan for HER2 positive breast cancer has entered the diagnosis and treatment… | Other (stated, no rule matched) |
| NCT02963363 | Adapted Physical Activity for Breast Cancer HER2 Positive Patient(APACAN2) | N/A | terminated | Nov 15, 2016 | Centre Jean Perrin | Insufficient recruitment | Enrollment / accrual |
| NCT04602117 | ISPY-P1.01:Evaluating the Safety of Weekly Paclitaxel With Trastuzumab Duocarmazine… | Phase 1 | withdrawn | Oct 26, 2020 | QuantumLeap Healthcare Collaborative | Study withdrawn as scientific interest in pursuing the SYD985+Paclitaxel combination has diminished. | Other (stated, no rule matched) |
| NCT01873833 | Capecitabine, Cyclophosphamide, Lapatinib Ditosylate, and Trastuzumab in Treating… | Phase 2 | terminated | Jun 10, 2013 | University of Southern California | Insufficient accrual | Enrollment / accrual |
| NCT05371860 | Radiation Omission in Patients With HER2 Overexpressing Tumors With Pathologic Complete… | Phase 2 | withdrawn | May 12, 2022 | Armando Giuliano | PI voluntarily closed the study. Will be reopened as a national cooperative group trial. | Other (stated, no rule matched) |
| NCT04106167 | Long-term, Non-interventional, Observational Study Following Treatment With Fate… | — | terminated | Sep 26, 2019 | Fate Therapeutics | This study was terminated by the Sponsor. | Other (stated, no rule matched) |
| NCT01712815 | PET/CT in Evaluating Response to Chemotherapy in Patients With Breast Cancer | N/A | terminated | Oct 24, 2012 | University of Southern California | Insufficient accrual | Enrollment / accrual |
| NCT04650451 | Safety and Activity Study of HER2-Targeted Dual Switch CAR-T Cells (BPX-603) in Subjects… | Phase 1 | suspended | Dec 2, 2020 | Bellicum Pharmaceuticals | Due to a Dose Limiting Toxicity in another sister trial with same technology. | Safety / toxicity |
| NCT05091528 | A Safety and Activity Study of SBT6050 in Combination With Other HER2-directed Therapies… | Phase 1 / Phase 2 | terminated | Oct 25, 2021 | Silverback Therapeutics | Sponsor decision based on strategic re-alignment | Sponsor / business decision |
| NCT05227131 | Margetuximab Plus Tucatinib and Capecitabine in HER2-positive Metastatic Breast Cancer(MARGARET) | Phase 2 | withdrawn | Feb 7, 2022 | MedSIR | Funder decided to not continue the study | Other (stated, no rule matched) |
| NCT04512261 | TOPAZ: Tucatinib in COmbination With Pembrolizumab And TrastuZumab in Patients With…(TOPAZ) | Phase 1 / Phase 2 | withdrawn | Aug 13, 2020 | Reva Basho | Study withdrawn due to change in treatment landscape for HER2+ metastatic breast cancer. | Other (stated, no rule matched) |
| NCT04351230 | T-DM1 With or Without Abemaciclib for the Treatment of HER2-Positive Metastatic Breast… | Phase 2 | withdrawn | Apr 17, 2020 | Academic and Community Cancer Research United | There are no patients enrolled on this study and all efforts are being discontinued | Enrollment / accrual |
| NCT03630809 | Immune Response and Potential Booster for Patients Who Have Received HER2-pulsed DC1 | Phase 2 | terminated | Aug 15, 2018 | H. Lee Moffitt Cancer Center and Research Institute | Quality of the data originating from prior versions of the protocol has been affected by protocol… | COVID-19 / pandemic |
| NCT03619044 | The Use of FES-PET Imaging as a Tool to Detect a Possible Reversion of Estrogen Receptor…(REVER) | N/A | terminated | Aug 7, 2018 | Institut Claudius Regaud | Slow recruitment rate | Enrollment / accrual |
| NCT03894007 | Improving Pre-operative Systemic Therapy for Human Epidermal Growth Factor Receptor 2…(PREDIXIIHER2) | Phase 2 | terminated | Mar 28, 2019 | Renske Altena | Security and effect data from another ongoing study. | Other (stated, no rule matched) |
| NCT04464967 | Safety and Preliminary Efficacy of SNK01 in Combination With Trastuzumab or Cetuximab in… | Phase 1 / Phase 2 | withdrawn | Jul 9, 2020 | NKGen Biotech, Inc. | Trial not initiated | Other (stated, no rule matched) |
| NCT04142554 | Parsaclisib in Newly Diagnosed Stage I-IIIC Triple Negative or HER2+ Breast Cancer(LCCC1820) | Phase 1 | withdrawn | Oct 29, 2019 | UNC Lineberger Comprehensive Cancer Center | Funding withdrawn from funding source. | Funding |
| NCT02095210 | HER2 PET Imaging in Breast Cancer Patients Using [68GA]ABY-025 | Phase 1 | terminated | Mar 24, 2014 | Dorte Nielsen | slow recruitment | Enrollment / accrual |
| NCT03811418 | A Study to Compare Pertuzumab + Trastuzumab + Vinorelbine vs. Placebo + Trastuzumab +…(ATTILA) | Phase 3 | withdrawn | Jan 22, 2019 | iOMEDICO AG | Study approved with treatment regimen based on current guidelines. However, reimbursement of IMP… | Other (stated, no rule matched) |
| NCT01912963 | Phase II Study of Eribulin Mesylate, Trastuzumab, and Pertuzumab in Women With… | Phase 2 | terminated | Jul 31, 2013 | Dana-Farber Cancer Institute | The study terminated early due to weak accrual. | Enrollment / accrual |
| NCT02379585 | Fasting on Newly Diagnosed Breast Cancer(STEFNE) | Phase 1 / Phase 2 | terminated | Mar 5, 2015 | Western Regional Medical Center | PI Decision | Other (stated, no rule matched) |
| NCT02345772 | Neoadjuvant Hormonal Therapy Combined With Chemoimmunotherapy(Neohttp) | Phase 1 / Phase 2 | terminated | Jan 26, 2015 | Western Regional Medical Center | PI no longer at site. Data was not collected | Other (stated, no rule matched) |
| NCT01729884 | Vaccine Therapy in Treating Patients With Stage IV Hormone Receptor Positive Breast Cancer | Phase 2 | terminated | Nov 20, 2012 | University of Washington | Study ended early due to slow enrollment | Enrollment / accrual |
| NCT02213744 | MM-302 Plus Trastuzumab vs. Chemotherapy of Physician's Choice Plus Trastuzumab in…(HERMIONE) | Phase 2 / Phase 3 | terminated | Aug 11, 2014 | Merrimack Pharmaceuticals | Felt not to show benefit over control per DMC and confirmed via futility analysis | Efficacy / futility |
| NCT00079326 | Trastuzumab and Ixabepilone in Treating Women With HER2-Positive Metastatic Breast Cancer | Phase 2 | terminated | Mar 10, 2004 | National Cancer Institute (NCI) | Slow accrual. | Enrollment / accrual |
| NCT01329640 | Feasibility Study of Metronomic Chemotherapy for Locally Advanced Her2- Positive Breast… | Phase 2 | terminated | Apr 6, 2011 | Instituto do Cancer do Estado de São Paulo | not stated | Not stated |
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 15 days agoSource updated Sep 15, 2026source: clinicaltrials