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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Oncology studies whose overall status is TERMINATED, WITHDRAWN or SUSPENDED on ClinicalTrials.gov, with the stop reason exactly as the registrant posted it.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.
2,059 stopped studies mapped to Carcinoma of Unknown Primary and descendants · 91% state a reason
Over the 2,059 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 |
|---|---|---|---|---|---|---|---|
| NCT04266730 | Trial of a Personalized and Adaptive Neoantigen Dose-Adjusted Vaccine Concurrently With…(PANDA-VAC) | Phase 1 | suspended | Feb 12, 2020 | UNC Lineberger Comprehensive Cancer Center | Not stated | Other (stated, no rule matched) |
| NCT06491225 | Autologous Tumor-Infiltrating Lymphocyte (GTE-001 Injection ) for Treatment of Patients… | Phase 1 | terminated | Jul 9, 2024 | Grit Biotechnology | The study was terminated from a business perspective. | Sponsor / business decision |
| NCT06974734 | A Clinical Trial of PF-08046037 Alone or With Sasanlimab in Patients With Advanced or… | Phase 1 | terminated | May 16, 2025 | Pfizer | The trial was terminated for strategic business reasons; the decision was not based on any safety… | Safety / toxicity |
| 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| NCT02856503 | Effect of High Dose Vitamin D on Cancer Biomarkers and Breast Cancer Tumors | Phase 1 / Phase 2 | withdrawn | Aug 5, 2016 | Eli Avisar, MD | Lack of Funding | Funding |
| NCT04387071 | CMP-001 and INCAGN01949 for Patients With Stage IV Pancreatic Cancer and Other Cancers… | Phase 1 / Phase 2 | terminated | May 13, 2020 | University of Southern California | Study drug no longer available | Other (stated, no rule matched) |
| 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) |
| NCT07040059 | A Phase 1b/2 Clinical Trial Evaluating the Efficacy, Safety, Pharmacokinetics, and… | Phase 1 / Phase 2 | terminated | Jun 26, 2025 | Aurigene Discovery Technologies Limited | Patient recruitment problems. | Enrollment / accrual |
| NCT03575611 | Stereotactic Body Radiation Therapy in Treating Patients With Oligometastatic Renal Cell… | Phase 2 | suspended | Jul 2, 2018 | M.D. Anderson Cancer Center | PI Request | Other (stated, no rule matched) |
| NCT05397093 | ITIL-306 in Advanced Solid Tumors | Phase 1 | terminated | May 31, 2022 | Instil Bio | The study was terminated early due to discontinuation of development of the investigational program | Other (stated, no rule matched) |
| NCT02819752 | PEmbrolizumab Combined With Chemoradiotherapy in Squamous Cell Carcinoma of the Head and…(PEACH) | Phase 1 | terminated | Jun 30, 2016 | Royal Marsden NHS Foundation Trust | funding pulled | Funding |
| NCT05567835 | A Study of Total Neoadjuvant Chemotherapy With FLOT VS Standard Perioperative FLOT in…(TOGAR) | Phase 2 | terminated | Oct 5, 2022 | Baylor College of Medicine | Since activation, 3 subjects were enrolled but were ineligible for randomization to a treatment arm… | Enrollment / accrual |
| NCT03727633 | Hepatocellular Carcinoma on Cirrhosis With Child A/B7 and Hepatic Intra Arterial…(LIDA-BII) | Phase 2 | terminated | Nov 1, 2018 | University Hospital, Montpellier | Enrollement rythm low, funding body decision. | Enrollment / accrual |
| NCT06110195 | Study of Xevinapant With Radiation and Chemotherapy for Patients With Head and Neck Cancer | Phase 1 | terminated | Oct 31, 2023 | University of Chicago | Drug no longer being developed by manufacturer | Drug supply |
| NCT02366819 | Genetic Analysis-Guided Irinotecan Hydrochloride Dosing of mFOLFIRINOX in Treating… | Phase 4 | suspended | Feb 19, 2015 | University of Chicago | Pending data analysis | Other (stated, no rule matched) |
| NCT03386357 | Radiotherapy With Pembrolizumab in Metastatic Head and Neck Squamous Cell Carcinoma… | Phase 2 | terminated | Dec 29, 2017 | University of Erlangen-Nürnberg Medical School | slow recruitment | Enrollment / accrual |
| 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 |
| NCT04432207 | A Study of IMU-201 (PD1-Vaxx), a B-Cell Immunotherapy, in Adults With Non-Small Cell Lung… | Phase 1 | terminated | Jun 16, 2020 | Imugene Limited | Portfolio prioritization | Sponsor / business decision |
| NCT06580938 | A Study to Learn About PF-07921585 Alone or With Other Anti-cancer Medicines in People… | Phase 1 | terminated | Aug 30, 2024 | Pfizer | The trial was terminated for strategic reasons. The decision was not based on any safety and/or… | Safety / toxicity |
| NCT04904302 | Sitravatinib and Nivolumab for the Treatment of Metastatic or Advanced Clear Cell Renal… | Phase 2 | terminated | May 27, 2021 | M.D. Anderson Cancer Center | Withdrawal of funding from the supporter (Mirati Therapeutics) | Funding |
| NCT04338269 | A Study of Atezolizumab in Combination With Cabozantinib Compared to Cabozantinib Alone…(CONTACT-03) | Phase 3 | terminated | Apr 8, 2020 | Hoffmann-La Roche | As the study did not meet it's primary endpoint a decision was made to terminate the study. | Other (stated, no rule matched) |
| 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 |
| NCT06599502 | A Phase I/IIa Study to Investigate the Safety, Tolerability, Pharmacokinetics, and…(ALAFOSS-01) | Phase 1 | terminated | Sep 19, 2024 | AstraZeneca | The decision to cease enrolment and proceed with the early termination of the ALAFOSS 01… | Enrollment / accrual |
| NCT03360721 | Apalutamide, Abiraterone Acetate, and Prednisone in Treating Participants With Metastatic… | Phase 2 | terminated | Dec 4, 2017 | M.D. Anderson Cancer Center | \<75% participation | Other (stated, no rule matched) |
| NCT02439008 | Early Biomarkers of Tumor Response in High Dose Hypofractionated Radiotherapy Word… | N/A | terminated | May 8, 2015 | Centre Oscar Lambret | Lack of patient enrollment | 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 |
| NCT07284953 | A Novel Haemostatic Agent for Robotic Partial Nephrectomy(PuraBond) | N/A | withdrawn | Dec 16, 2025 | The Royal Wolverhampton Hospitals NHS Trust | Study no longer going ahead | Other (stated, no rule matched) |
| NCT03753919 | Durvalumab Plus Tremelimumab for the Treatment of Patients With Progressive, Refractory…(DUTHY) | Phase 2 | terminated | Nov 27, 2018 | Grupo Espanol de Tumores Neuroendocrinos | In compliance with current legislation applicable to Clinical Trials, following the instructions of… | Other (stated, no rule matched) |
| 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) |
| NCT04777851 | Regorafenib-pembrolizumab vs. TACE/TARE in Intermediate Stage HCC Beyond Up-to-7(REPLACE) | Phase 3 | terminated | Mar 2, 2021 | Translational Research in Oncology | The trial ended earlier than planned due to slow enrolment, which has made it unfeasible to achieve… | Enrollment / accrual |
| NCT05956795 | Surveillance of Regional Nodal Basins in Patients With Primary High Risk Cutaneous… | — | terminated | Jul 21, 2023 | Johns Hopkins University | Expired in IRB | Other (stated, no rule matched) |
| NCT06860386 | Study of Adaptive Immunotherapy With VEGFR-TKI in Patients With Advanced RCC | Phase 2 | suspended | Mar 6, 2025 | H. Lee Moffitt Cancer Center and Research Institute | Funding unavailable | Funding |
| NCT04222972 | A Study of Pralsetinib Versus Standard of Care for First-Line Treatment of Advanced…(AcceleRET-Lung) | Phase 3 | terminated | Jan 10, 2020 | Hoffmann-La Roche | Early termination of the study resulted from organizational and commercial decisions that led to… | Other (stated, no rule matched) |
| NCT04327700 | Study Of Intrabucally Administered Electromagnetic Fields and Regorafenib | Phase 2 | terminated | Mar 31, 2020 | Wake Forest University Health Sciences | Slow accruals | Enrollment / accrual |
| NCT06114940 | Perioperative TORIPALIMAB Plus LENVATINIB in Patients With Renal Cell Carcinoma…(PLUTO) | Phase 2 | terminated | Nov 2, 2023 | Jinling Hospital, China | Involving changes to the primary endpoint, it is difficult to unify the evaluation criteria for… | Other (stated, no rule matched) |
| NCT06287463 | Study of DCC-3084 in Participants With Advanced Malignancies Driven by the… | Phase 1 | terminated | Mar 1, 2024 | Deciphera Pharmaceuticals, LLC | Trial terminated due to a business decision, not based on any safety concerns. | Safety / toxicity |
| NCT05721222 | Trial of PRO1160 (GEN1160) in Relapsed or Refractory Non-Hodgkin Lymphoma (NHL)… | Phase 1 / Phase 2 | terminated | Feb 9, 2023 | Genmab | Genmab has decided to discontinue the clinical development of GEN1160 due to slow enrolment | Enrollment / accrual |
| NCT04895748 | DFF332 as a Single Agent and in Combination With Everolimus & Immuno-Oncology Agents in… | Phase 1 | terminated | May 20, 2021 | Novartis Pharmaceuticals | Business decision and not related to safety concerns | Safety / toxicity |
| 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 |
| NCT05676463 | MRI Guided Radiation Therapy for the Treatment of High Risk Prostate Cancer | Phase 2 | terminated | Jan 9, 2023 | Thomas Jefferson University | Loss of required MRI resources needed to conduct protocol-specified procedures | Other (stated, no rule matched) |
| NCT03211988 | Entinostat Neuroendocrine (NE) Tumor | Phase 2 | terminated | Jul 11, 2017 | Antonio Fojo | Lack of funding and drug supply | Drug supply |
| NCT05296135 | Predicting Immunotherapy Efficacy in Head and Neck Squamous Cell Cancer(PREDAPT-HNSCC2) | — | withdrawn | Mar 25, 2022 | Cofactor Genomics, Inc. | No patients were recruited or enrolled in this study. | 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 |
| NCT06625515 | First-in-Human Study of ATX-559, an Oral Inhibitor of DHX9, in Patients With Advanced or… | Phase 1 | terminated | Oct 3, 2024 | Accent Therapeutics | The study was terminated by sponsor based on the adverse event profile. | Safety / toxicity |
| NCT03785210 | Nivolumab (Anti-PD1), Tadalafil and Oral Vancomycin in People With Refractory Primary… | Phase 2 | terminated | Dec 24, 2018 | National Cancer Institute (NCI) | Study was terminated due to poor accrual. | Enrollment / accrual |
| NCT05566223 | CISH Inactivated TILs in the Treatment of NSCLC(CheckCell-2) | Phase 1 / Phase 2 | withdrawn | Oct 4, 2022 | Intima Bioscience, Inc. | No recruitment | Enrollment / accrual |
| NCT06546553 | A Study to Learn About How Different Amounts of the Study Medicine PF-07826390 Act in the… | Phase 1 | terminated | Aug 9, 2024 | Pfizer | Study terminated as part of strategic considerations and not based on safety concerns. | Safety / toxicity |
| NCT05233436 | PF-07265028 As Single Agent And In Combination With Sasanlimab in Advanced or Metastatic… | Phase 1 | terminated | Feb 10, 2022 | Pfizer | Study terminated based on internal business considerations and was not based on safety reasons | Safety / toxicity |
| NCT03165721 | A Phase II Trial of the DNA Methyl Transferase Inhibitor, Guadecitabine (SGI-110), in… | Phase 2 | terminated | May 24, 2017 | National Cancer Institute (NCI) | Study closed to enrollment 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 23 days agoSource updated Apr 23, 2026source: clinicaltrials