Stop-reason hub

REGULATORY clinical trial stops

Search 92 stopped clinical trials classified as regulatory, with source-linked records and failure-signal context.

This page groups real ClinicalTrials.gov-derived stopped trial records. The strongest added signal is the stop-reason classification: 0 of these records are likely biological failure signals, while the rest may reflect operational, strategic, regulatory, funding, enrollment, or unclear stop reasons.

Total stopped trials92
Likely biological signals0
Shown below92

Dominant stop reasons

REGULATORY
92

Notable sponsors

GlaxoSmithKline
3
BioDelivery Sciences International
2
CanSino Biologics Inc.
2
Indiana University
2
Merck Sharp & Dohme LLC
2

Related phases

Phase II
32
Phase I
27
Phase III
19
Phase IV
6
Unknown
5

Crawlable stopped-trial records

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Showing up to 92 representative records from this slice. Each link opens the trial detail page with source attribution and stop-reason context.

NCT05094206: CAR20.19.22 T-cells in Relapsed, Refractory B-cell Malignancies

Phase I B-cell Non Hodgkin Lymphoma trial by Medical College of Wisconsin. Stop reason: REGULATORY.

Treated four patients: 2 at a dose of 1x10\^6 cells/kg and 2 ad at dose of 2.5x10\^6 cells/kg. All four patients had no in-vivo expansion and no meaningful response to therapy. At this point per FDA guidance we will not be treating more patients.

NCT04197102: Use of CBD Oil in the Treatment of Posttraumatic Stress Disorder

Phase II Post Traumatic Stress Disorder trial by University of Texas at Austin. Stop reason: REGULATORY.

Suspended (The UT IRB determined that CBD oil is being used as a drug as defined by the FDA. Therefore, an IND must be obtained for the use of CBD oil in this research study in accordance with FDA regulations, 21 CFR 312.)

NCT04984798: Vitamin E Efficacy in HI/HA

Phase II Hyperinsulinism-Hyperammonemia Syndrome trial by Children's Hospital of Philadelphia. Stop reason: REGULATORY.

No study activity took place. The IND was withdrawn with the FDA by the Sponsor Investigator because of insurmountable hurdles in moving proposed research forward

NCT01587261: Vitamin C for Severe Thermal Injuries

Phase II Severe Thermal Injury, Greater Than 20% TBSA trial by University of Texas Southwestern Medical Center. Stop reason: REGULATORY.

This potential study was held up at the level of the FDA as they wouldn't approve and IND for the dose of vitamin C we wanted to use.