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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Oncology studies whose overall status is TERMINATED, WITHDRAWN or SUSPENDED on ClinicalTrials.gov, with the stop reason exactly as the registrant posted it.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.
437 stopped studies mapped to Squamous Cell Carcinoma and descendants · 91% state a reason
Over the 437 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 |
|---|---|---|---|---|---|---|---|
| NCT04738786 | Clinical Study Evaluating the Proper Surgical Safety Margin for Early Stage Oral Tongue… | N/A | terminated | Feb 4, 2021 | Samsung Medical Center | Due to Korean medical crisis, Resident strike, Patient referral (tongue cancer patients) to… | Enrollment / accrual |
| NCT04633278 | CMP-001 in Combination With Pembrolizumab in Subjects With Recurrent or Metastatic Head… | Phase 2 | terminated | Nov 18, 2020 | Regeneron Pharmaceuticals | Business Decision | Sponsor / business decision |
| NCT05930938 | Study Comparing RT With Cetuximab + Xevinapant to RT With Cetuximab-placebo in Patients…(XXL_2022-01) | Phase 3 | terminated | Jul 5, 2023 | Groupe Oncologie Radiotherapie Tete et Cou | toxicity | Safety / toxicity |
| NCT04329221 | Immunotherapy Before Transplantation for Skin Cancer Prevention in Organ Transplant… | Phase 2 | withdrawn | Apr 1, 2020 | Massachusetts General Hospital | The study was withdrawn due to lack of financial support. | Funding |
| NCT04642287 | Immunotherapy After Transplantation for Skin Cancer Prevention in Organ Transplant… | Phase 2 | withdrawn | Nov 24, 2020 | Massachusetts General Hospital | The study was withdrawn due to lack of financial support. | Funding |
| NCT06644079 | Window of Opportunity Study of Topical Tranexamic Acid for Cutaneous Squamous Cell… | Phase 2 | withdrawn | Oct 16, 2024 | University of Florida | Study not moving forward due to upcoming PI departure | Other (stated, no rule matched) |
| NCT03053960 | Helical CT, PET/CT, MRI, and CBCT Alone or in Combination in Predicting Jaw Invasion in… | — | terminated | Feb 15, 2017 | Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University | Terminated by IRB | Other (stated, no rule matched) |
| NCT04595981 | Chemo-embolization for Head and Neck Cancer | Phase 2 | withdrawn | Oct 22, 2020 | University of Alabama at Birmingham | No staff or funding to do the study. | Funding |
| NCT04301011 | Study of TBio-6517 Given Alone or in Combination With Pembrolizumab in Solid Tumors(RAPTOR) | Phase 1 | terminated | Mar 9, 2020 | Turnstone Biologics, Corp. | Sponsor decision | Sponsor / business decision |
| NCT05322135 | A Pilot Study of Glutamine PET Imaging of Head and Neck Squamous Cell Carcinoma | Early Phase 1 | terminated | Apr 11, 2022 | M.D. Anderson Cancer Center | PI Request | Other (stated, no rule matched) |
| NCT05608369 | Vorinostat in Combination With Chemoradiation in Locally Advanced HPV Negative HNSCC(HPV) | Phase 2 | withdrawn | Nov 8, 2022 | Case Comprehensive Cancer Center | PI left | Investigator |
| NCT03829501 | A Phase 1/2, Open-label, Multi-center Study of the Safety and Efficacy of Alomfilimab… | Phase 1 / Phase 2 | terminated | Feb 4, 2019 | Kymab Limited | Early discontinuation based on strategic sponsor decision not driven by any safety concerns. | Safety / toxicity |
| NCT00448240 | Erlotinib (Tarceva) During First Line Standard Platinum Containing Chemo for Advanced… | Phase 2 / Phase 3 | terminated | Mar 16, 2007 | Henry Ford Health System | Low Accrual, Funding | Enrollment / accrual |
| NCT05452408 | Antitumor-B KAC PK Study | Phase 1 | withdrawn | Jul 11, 2022 | Medical College of Wisconsin | Study abandoned. | Other (stated, no rule matched) |
| NCT02827838 | Durvalumab Before Surgery in Treating Patients With Oral Cavity or Oropharynx Cancer | Early Phase 1 | terminated | Jul 11, 2016 | Wake Forest University Health Sciences | Study closed prior to meeting enrollment goal and funding issues | Enrollment / accrual |
| NCT03115476 | A Trial to Compare the Incidence of Squamous Cell Carcinoma (SCC) and Other Skin… | Phase 3 | terminated | Apr 14, 2017 | LEO Pharma | Study halted prematurely and will not resume; participants are no longer being examined. | Other (stated, no rule matched) |
| NCT05743270 | Study of RP3 in Combination With Nivolumab and Other Therapy in Patients With… | Phase 2 | withdrawn | Feb 24, 2023 | Replimune, Inc. | Sponsor decision | Sponsor / business decision |
| NCT04032704 | A Study of Ladiratuzumab Vedotin in Advanced Solid Tumors | Phase 2 | terminated | Jul 25, 2019 | Seagen Inc. | Study closed due to portfolio prioritization | Sponsor / business decision |
| NCT05576077 | A Study of TBio-4101 (TIL) and Pembrolizumab in Patients With Advanced Solid Tumors(STARLING) | Phase 1 | terminated | Oct 12, 2022 | Turnstone Biologics, Corp. | Sponsor decision | Sponsor / business decision |
| NCT03169764 | QUILT-3.047: NANT Head and Neck Squamous Cell Carcinoma (HNSCC) Vaccine: Combination… | Phase 1 / Phase 2 | withdrawn | May 30, 2017 | ImmunityBio, Inc. | Trial not initiated | Other (stated, no rule matched) |
| NCT04465487 | Study of REGN6569 and Cemiplimab in Adult Patients With Advanced Solid Tumor Malignancies | Phase 1 | terminated | Jul 10, 2020 | Regeneron Pharmaceuticals | Sponsor Decision | Sponsor / business decision |
| NCT04502888 | Ph1 Study of SL-172154 Administered Intratumorally in Subjects With Squamous Cell… | Phase 1 | terminated | Aug 6, 2020 | Shattuck Labs, Inc. | Sponsor decision | Sponsor / business decision |
| NCT04804696 | Toripalimab with Paclitaxel and Cisplatin As Neoadjuvant Treatment for Esophageal… | Phase 2 | terminated | Mar 18, 2021 | Peking University | Several clinical trials had showed that anti-PD-1 agents combined with chemotherapy as neoadjuvant… | Other (stated, no rule matched) |
| NCT06054477 | Study of ALE.C04 in Patients With Head and Neck Cancer | Phase 1 / Phase 2 | terminated | Sep 26, 2023 | Alentis Therapeutics AG | Reprioritization of Trial | Other (stated, no rule matched) |
| NCT04588038 | NT-I7 for the Treatment of Recurrent Squamous Cell Carcinoma of Head and Neck Undergoing… | Phase 1 | terminated | Oct 19, 2020 | Hyunseok Kang, MD | Slow Accrual | Enrollment / accrual |
| NCT04254107 | A Safety Study of SEA-TGT (SGN-TGT) in Advanced Cancer | Phase 1 | terminated | Feb 5, 2020 | Seagen Inc. | Study closed due to portfolio prioritization | Sponsor / business decision |
| NCT06702384 | Molecular Analysis of Gastric and OEsophageal Cancers STudy(MAGnET) | — | withdrawn | Nov 25, 2024 | Royal Marsden NHS Foundation Trust | Never opened to recruitment due to lack of funding | Enrollment / accrual |
| NCT05457478 | The Use of "Smart" Body-Weight Scales for Weight and Nutritional Monitoring in Patients… | N/A | terminated | Jul 14, 2022 | OHSU Knight Cancer Institute | PI departure | Other (stated, no rule matched) |
| NCT04807777 | Study of Ruxolitinib in Solid Organ Transplant Recipients With Advanced Cutaneous… | Phase 2 | terminated | Mar 19, 2021 | Columbia University | Departure of the original investigator | Investigator |
| NCT03769467 | Tabelecleucel in Combination With Pembrolizumab in Subjects With Epstein-Barr… | Phase 1 / Phase 2 | terminated | Dec 7, 2018 | Atara Biotherapeutics | Phase 1B part was completed with review of DLTs and cumulative safety data by Safety Data Review… | Safety / toxicity |
| NCT04220775 | Bintrafusp Alfa and Stereotactic Body Radiation Therapy for the Treatment of Recurrent or… | Phase 1 / Phase 2 | terminated | Jan 7, 2020 | M.D. Anderson Cancer Center | The sponsor decided to no longer develop the drug and stop support of studies using the drug. | Sponsor / business decision |
| NCT04795713 | Study of MT-6402 in Subjects With Advanced Solid Cancer That Expresses PD-L1 | Phase 1 | terminated | Mar 12, 2021 | Molecular Templates, Inc. | Terminated by Sponsor | Other (stated, no rule matched) |
| NCT06034860 | Study of MT-8421 as Monotherapy and in Combination With Nivolumab in Patients With… | Phase 1 | terminated | Sep 13, 2023 | Molecular Templates, Inc. | Sponsor Termination | Other (stated, no rule matched) |
| NCT03153982 | Ruxolitinib in Operable Head and Neck Cancer | Phase 2 | terminated | May 15, 2017 | University of California, San Francisco | Low accrual | Enrollment / accrual |
| NCT03809624 | Study of INBRX-105 and INBRX-105 With Pembrolizumab in Patients With Solid Tumors…(PDL1x41BB) | Phase 1 | terminated | Jan 18, 2019 | Inhibrx Biosciences, Inc | Program terminated due to lack of meaningful efficacy signal. | Efficacy / futility |
| NCT03452137 | A Study of Atezolizumab (Anti-PD-L1 Antibody) as Adjuvant Therapy After Definitive Local…(IMvoke010) | Phase 3 | terminated | Mar 2, 2018 | Hoffmann-La Roche | Decision to terminate the study as its primary endpoint of investigator-assessed event free… | Safety / toxicity |
| NCT04685798 | Optimized Diffusion-Weighted Imaging for the Evaluation of Post-Treatment Squamous Cell… | N/A | terminated | Dec 28, 2020 | Washington University School of Medicine | Low accrual | Enrollment / accrual |
| NCT03370861 | How Microbes and Metabolism May Predict Skin Cancer Immunotherapy Outcomes(MINING) | — | terminated | Dec 12, 2017 | Washington University School of Medicine | Subject recruitment was limited severely by the 2020-2023 COVID-19 pandemic, which led this study… | COVID-19 / pandemic |
| NCT04944173 | SCION: SABR and Checkpoint Inhibition of NSCLC(SCION) | Phase 2 | withdrawn | Jun 29, 2021 | University of British Columbia | Overestimated pool of eligible patients and the potential participants either declined… | Other (stated, no rule matched) |
| NCT03387111 | QUILT-3.090: NANT Squamous Cell Carcinoma (SCC) Vaccine: Subjects With SCC Who Have… | Phase 1 / Phase 2 | terminated | Dec 29, 2017 | ImmunityBio, Inc. | Study halted prematurely and will not resume; participants are no longer being examined or… | Other (stated, no rule matched) |
| NCT03423264 | PROGRESS Trial - Prophylactic Gabapentin for Relief of Symptoms and Improved Swallowing | Phase 2 | withdrawn | Feb 6, 2018 | University of Chicago | unable to accrue | Enrollment / accrual |
| NCT04628780 | Study to Test the Safety and Tolerability of PF-07209960 in Advanced or Metastatic Solid… | Phase 1 | terminated | Nov 16, 2020 | Pfizer | Pfizer has made an internal business decision to not continue further development of PF-07209960.… | Safety / toxicity |
| NCT06384820 | Study of Cemiplimab Alone or in Combination With Fianlimab and/or Other Experimental… | Phase 2 | withdrawn | Apr 25, 2024 | Regeneron Pharmaceuticals | Business Decision | Sponsor / business decision |
| NCT06084845 | Testing the Addition of an Investigational Drug, Xevinapant, to Usual Radiation Therapy… | Phase 2 | withdrawn | Oct 16, 2023 | ECOG-ACRIN Cancer Research Group | A phase III trial of the investigational agent failed to pass futility boundaries at interim… | Efficacy / futility |
| NCT06357858 | ASTX727 and Nivolumab in Squamous Cell Carcinoma of the Head and Neck | Phase 1 | withdrawn | Apr 10, 2024 | Case Comprehensive Cancer Center | Funding unavailable | Funding |
| NCT03601507 | Alpelisib in Treating Participants With Transorally Resectable HPV-Associated Stage I-IVA… | Phase 2 | terminated | Jul 26, 2018 | University of Arizona | Novartis has chosen to withdraw support for this trial | Other (stated, no rule matched) |
| NCT05061537 | Study of PF-07263689 in Participants With Selected Advanced Solid Tumors | Phase 1 | terminated | Sep 29, 2021 | Pfizer | The study was terminated by the Sponsor due to business decision and not due to any safety concerns… | Safety / toxicity |
| NCT05412875 | Pilot Trial of E Cigarettes in Pts Diagnosed With Cancer of the Head, Neck, and Lung | N/A | withdrawn | Jun 9, 2022 | Ohio State University Comprehensive Cancer Center | Funding lapse | Funding |
| NCT04659369 | Study of Pharmacokinetic, Safety, Immunogenicity and Efficacy of CMAB819 and Nivolumab in… | Phase 1 | terminated | Dec 9, 2020 | Taizhou Mabtech Pharmaceutical Co.,Ltd | Difficult to recruit subjects | Enrollment / accrual |
| NCT04714983 | DNX-2440 for Resectable Colorectal Liver Metastasis | Phase 1 | suspended | Jan 20, 2021 | DNAtrix, Inc. | DNAtrix management decision not based on study design, safety, or site performance. | Safety / toxicity |
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 18, 2025source: clinicaltrials