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Pfizer's Upjohn has merged with Mylan to form Viatris Inc. clinical trial failures
Review 49 stopped clinical trials from Pfizer's Upjohn has merged with Mylan to form Viatris Inc., 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: 8 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
- OTHER/UNKNOWN
- 22
- OPERATIONAL
- 18
- SAFETY
- 5
- EFFICACY/FUTILITY
- 3
- REGULATORY
- 1
Notable sponsors
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
- 49
Related phases
- Phase III
- 20
- Phase IV
- 19
- Phase I
- 5
- Phase II
- 4
- Unknown
- 1
Crawlable stopped-trial records
Open ExploreShowing up to 49 representative records from this slice. Each link opens the trial detail page with source attribution and stop-reason context.
Phase IV Pulmonary Arterial Hypertension trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
Study was terminated by Sponsor at recommendation of Data Monitoring Committee after completion of first interim analysis as primary objective was met.
Phase III Bipolar Disorder trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
Pfizer has decided to perform the pre-specified final analysis at the current enrollment using a re-estimation of the sample size.
Phase III Bipolar Disorder trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
Based on recent input from FDA, the pre-specified final analysis will be performed at the current enrollment using a re-estimation of the sample size.
Phase IV Acute Mania trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
Please see Brief Summary for Termination Reason.
Phase III Schizophrenia trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: SAFETY.
Please see Detailed Description for termination reason.
Phase III Schizophrenia trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: SAFETY.
Please see Detailed Description for termination reason.
Phase IV Osteoarthritis trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
This study was terminated early due to slow enrollment.
Phase III Osteoarthritis trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: SAFETY.
Please see detailed description for termination reason.
Phase III Bipolar Disorder trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
See termination reason in detailed description.
Phase IV Schizophrenia and Disorders With Psychotic Features trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
See Detailed Description
Phase III Bipolar Disorder trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
No stop-reason text available in the compact dataset.
Phase IV Schizophrenia trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
See Detailed Description for Termination Reason
Phase III Adenomatous Polyposis Coli trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
See termination reason in detailed description.
Phase III Schizophrenia trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
This study was terminated on November 20, 2003 because of poor recruitment. This study was not terminated due to safety/efficacy.
Phase III Schizophrenia trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
Please see Detailed Description for termination reason.
Phase III Bipolar Disorder trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
No stop-reason text available in the compact dataset.
Phase IV Hyperlipidemia trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
See termination reason in detailed description.
Phase III Cardiovascular Diseases trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
The study was terminated on June 22, 2007 for inability to enroll patients within an appropriate timeframe. There were no efficacy/safety concerns.
Phase I Healthy trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
The project has been transferred to Viatris
Phase IV Chemotherapy-Induced Peripheral Neuropathy trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: EFFICACY/FUTILITY.
See detailed description for termination reason
Phase IV Renal Impairment trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: REGULATORY.
See termination reason in detailed description.
Phase IV Pain trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
See termination reason in detailed description.
Phase IV PK Properties Of Gabapentin In Subjects With Impaired Renal Function trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: SAFETY.
See detailed description for termination reason
Phase II Glaucoma, Open-Angle trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
No stop-reason text available in the compact dataset.
Phase II Persistent Pulmonary Hypertension of the Newborn trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
No stop-reason text available in the compact dataset.
Phase III Glaucoma, Open-Angle trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
No stop-reason text available in the compact dataset.
Phase II Pre-eclampsia trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: EFFICACY/FUTILITY.
Study prematurely discont'd 20-Apr-2006 after interim analysis suggested sample size could be reduced without losing power. No safety concerns led to decision.
Phase II PPHN trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
See termination reason in detailed description.
Phase III Stress Disorders, Post-Traumatic trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
Please see Detailed Description below for termination reason.
Phase IV Overactive Bladder trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
Stop date for randomization: 31/5/2012. Recruitment terminated due to lack of recruitment. No new safety issues were identified.
Phase IV Panic Disorder trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
Please see Detailed Description for the termination reason.
Phase III HIV-1 Infection trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: EFFICACY/FUTILITY.
See termination reason in detailed description.
Phase I Healthy trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
No stop-reason text available in the compact dataset.
Phase I Healthy trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
No stop-reason text available in the compact dataset.
Phase III Pain, Perioperative trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
The Study was terminated on May 24th 2012 due to a slow recruitment rate. The study was not terminated for reasons of safety or efficacy.
Phase III Neuropathy trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
See termination reason in detailed description.
Phase IV Chronic Low Back Pain With a Neuropathic Component trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
Recruitment terminated on 3Apr2015 due to slow recruitment rate and lack of operational feasibility. Study was not terminated for reasons of safety/efficacy.
Phase I Healthy trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
No stop-reason text available in the compact dataset.
Phase IV Panic Disorder trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
Please see Detailed Description for termination reason.
Phase I Healthy trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
No stop-reason text available in the compact dataset.
Phase IV Panic Disorder trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
Please see Detailed Description for termination reason.
Phase III Epilepsy trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
This study was terminated on April 8, 2011 as Pfizer Canada could no longer supply study drug. No efficacy or safety concerns factored into this decision.
Phase IV Partial Seizures trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
No stop-reason text available in the compact dataset.
Unknown Spinal Cord Injuries trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
See Detailed Description
Phase III Restless Legs Syndrome trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
No stop-reason text available in the compact dataset.
Phase IV Low Back Pain trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
No stop-reason text available in the compact dataset.
Phase IV Bone Neoplasms trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OPERATIONAL.
See termination reason in detailed description.
Phase III Epilepsies, Partial trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: OTHER/UNKNOWN.
See termination reason in detailed description.
Phase IV Pulmonary Arterial Hypertension trial by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Stop reason: SAFETY.
This study was terminated at the recommendation of an independent Data Monitoring Committee. The decision was not based on any safety concerns.