Sponsor hub
University of California, Davis clinical trial failures
Review 41 stopped clinical trials from University of California, Davis, including disease areas, phases, and classified stop reasons.
This page groups real ClinicalTrials.gov-derived stopped trial records. The strongest added signal is the stop-reason classification: 3 of these records are likely biological failure signals, while the rest may reflect operational, strategic, regulatory, funding, enrollment, or unclear stop reasons.
Dominant stop reasons
- OPERATIONAL
- 28
- OTHER/UNKNOWN
- 10
- EFFICACY/FUTILITY
- 2
- SAFETY
- 1
Notable sponsors
- University of California, Davis
- 41
Related phases
- Phase II
- 14
- Phase I
- 11
- Phase IV
- 8
- Phase III
- 3
- Unknown
- 3
Crawlable stopped-trial records
Open ExploreShowing up to 41 representative records from this slice. Each link opens the trial detail page with source attribution and stop-reason context.
Phase I Advanced Colorectal Carcinoma trial by University of California, Davis. Stop reason: EFFICACY/FUTILITY.
For internal interim analysis
Phase I Advanced Adenocarcinoma trial by University of California, Davis. Stop reason: SAFETY.
Drugs unavailable
Phase II Locally Advanced Cutaneous Squamous Cell Carcinoma of the Head and Neck trial by University of California, Davis. Stop reason: OPERATIONAL.
Slow accrual
Phase II ATM Gene Mutation trial by University of California, Davis. Stop reason: OPERATIONAL.
PI choice; poor accrual
Phase II Non Hodgkin's Lymphoma trial by University of California, Davis. Stop reason: OTHER/UNKNOWN.
Sponsor choice
Phase IV Vertebral Compression Fracture trial by University of California, Davis. Stop reason: OPERATIONAL.
Difficulty recruiting members
Phase II Lymphoma trial by University of California, Davis. Stop reason: OPERATIONAL.
Poor accrual
Phase I Solid Tumor, Childhood trial by University of California, Davis. Stop reason: OTHER/UNKNOWN.
PI discretion; suspended while CAPA is reviewed
Phase II Opioid-use Disorder trial by University of California, Davis. Stop reason: OPERATIONAL.
This study was not funded and therefore not recruiting. So we never opened the study.
Phase I Soft Tissue Sarcoma trial by University of California, Davis. Stop reason: OTHER/UNKNOWN.
PI choice.
Phase III Bullous Pemphigoid trial by University of California, Davis. Stop reason: OPERATIONAL.
PI did not pursue this study; this study was not IRB-approved and never started.
Phase I Asthma trial by University of California, Davis. Stop reason: OPERATIONAL.
Enrollment stopped secondary to completion of funding
Phase II Melanoma trial by University of California, Davis. Stop reason: OPERATIONAL.
low enrollment
Phase II Second Trimester Abortion trial by University of California, Davis. Stop reason: OPERATIONAL.
Slow recruitment compounded by COVID-19
Early Phase I Advanced Lung Non-Small Cell Carcinoma trial by University of California, Davis. Stop reason: OPERATIONAL.
Unable to recruit to study.
Phase IV Epistaxis trial by University of California, Davis. Stop reason: OPERATIONAL.
Terminate due to slow enrollment rate.
Unknown Post-operative Pain trial by University of California, Davis. Stop reason: OPERATIONAL.
Poor enrollment
Phase III Cancer of Head and Neck trial by University of California, Davis. Stop reason: OPERATIONAL.
Poor Recruitment
Phase II Hormone-Resistant Prostate Cancer trial by University of California, Davis. Stop reason: OPERATIONAL.
Poor accrual of subjects onto study
Phase IV Hypoactive Delirium trial by University of California, Davis. Stop reason: EFFICACY/FUTILITY.
A planned interim analysis led to the trial being stopped early based on the observed size effect and power analysis.
Phase IV Hemophilia A With Inhibitor trial by University of California, Davis. Stop reason: OPERATIONAL.
Termination of funding from sponsor.
Phase I Pregnancy, Unwanted trial by University of California, Davis. Stop reason: OTHER/UNKNOWN.
Safety
Phase IV Attention Deficit Hyperactivity Disorder trial by University of California, Davis. Stop reason: OPERATIONAL.
Lack of enrollment
Phase I Toxic Epidermal Necrolysis trial by University of California, Davis. Stop reason: OPERATIONAL.
Lack of enrollment
Phase IV Vomiting trial by University of California, Davis. Stop reason: OPERATIONAL.
recruitment futility
Phase II Suicide trial by University of California, Davis. Stop reason: OPERATIONAL.
Trial never received funding.
Phase I Multiple Sclerosis trial by University of California, Davis. Stop reason: OPERATIONAL.
Unable to complete subject recruitment
Phase I Breast Cancer trial by University of California, Davis. Stop reason: OTHER/UNKNOWN.
Practice patterns with pemetrexed have evolved.
Phase I Lung Cancer trial by University of California, Davis. Stop reason: OTHER/UNKNOWN.
Number of known toxicities observed despite a treatment-naïve population
Phase II Adult Brain Glioblastoma trial by University of California, Davis. Stop reason: OPERATIONAL.
Poor Accrual
Early Phase I Carcinoma, Non-Small-Cell Lung trial by University of California, Davis. Stop reason: OTHER/UNKNOWN.
Contract ended
Unknown Metastatic Cancer trial by University of California, Davis. Stop reason: OTHER/UNKNOWN.
No stop-reason text available in the compact dataset.
Phase II Severe Asthma trial by University of California, Davis. Stop reason: OTHER/UNKNOWN.
No stop-reason text available in the compact dataset.
Phase I Primary Sclerosing Cholangitis trial by University of California, Davis. Stop reason: OPERATIONAL.
Lack of feasibility
Phase II Diabetes Complications trial by University of California, Davis. Stop reason: OPERATIONAL.
Lack of recruitment
Phase II Colorectal Cancer trial by University of California, Davis. Stop reason: OPERATIONAL.
Lack of accrual
Unknown Epilepsy trial by University of California, Davis. Stop reason: OPERATIONAL.
our site was unable to enroll any qualified subjects
Phase IV Abnormal Uterine Bleeding, Unspecified trial by University of California, Davis. Stop reason: OPERATIONAL.
Futility of recruitment
Phase III Hayfever trial by University of California, Davis. Stop reason: OPERATIONAL.
Sponsor suspended study do to funding
Phase IV Atopic Dermatitis trial by University of California, Davis. Stop reason: OTHER/UNKNOWN.
withdrawn due to contractual issues
Phase II Ulcer trial by University of California, Davis. Stop reason: OPERATIONAL.
Lack of funding.