Pfizer's Upjohn has merged with Mylan to form Viatris

Closed portfolio with a later-stage archive tilt

According to ClinicalTrials.gov-derived indexes, Pfizer's Upjohn has merged with Mylan to form Viatris sits in the top decile of US sponsors by registered trial count (#186 of 15,742 sponsors by registered trial count).

158 total trials none currently recruiting 138 completed later-stage tilt top decile by trial count

Pfizer's Upjohn has merged with Mylan to form Viatris: 158 sponsored US clinical trials, none currently recruiting.

Pfizer's Upjohn has merged with Mylan to form Viatris sponsors 158 registered US clinical trials on ClinicalTrials.gov, none currently recruiting, and 138 completed. 128 of these trials are in Phase 3-4 (later-stage) and 24 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Healthy, with 3 trials.

Top-decile sponsor footprint

Pfizer's Upjohn has merged with Mylan to form Viatris ranks in the top decile of sponsors by registered trial count (#186 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Trial completion reliability score

D 58/100

138 of 158 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (87.3%), vs. national p10 68.4% / p90 100% among 1,234 sponsors with at least 10 decided trials. Still-open trials (Recruiting, Active-not-recruiting, Not-yet-recruiting) are excluded since they have not reached an outcome yet.

Indexed trials (enrollment closed)

158 total, page 3 of 4

COMPLETED Phase 4

Assessment Of Sildenafil On Erectile Function And Intercourse Satisfaction And To Validate A New Subject Questionnaire

NCT00147628

COMPLETED Phase 3

A 28-Day Polysomnographic Study of Gabapentin in Transient Insomnia Induced by a Sleep Phase Advance

NCT00163046

COMPLETED Phase 3

Study of Pregabalin Versus Placebo in the Treatment of Nerve Pain Associated With HIV Neuropathy

NCT00232141

COMPLETED Phase 3

A Controlled Pregabalin Trial In Fibromyalgia

NCT00230776

COMPLETED Phase 4

Effect Of Detrol LA With Behavioral Intervention In Overactive Bladder Subjects Dissatisfied With Recent OAB Medication.

NCT00230789

COMPLETED Phase 4

Study Of Men With Mild To Moderate Erectile Dysfunction To Evaluate The Efficacy Of Viagra 8 Hours Post-Dose

NCT00143260

COMPLETED Phase 4

Study Of "Continuous Use" Of Celecoxib Vs. "Usual or Intermittent Use"

NCT00139776

COMPLETED Phase 3

A 12-Week, Randomized, Double-Masked, Parallel Group Comparison Of Evening Dosing With Xalacom In Subjects With Glaucoma

NCT00159653

COMPLETED Phase 3

A Six-Week Study Evaluating The Efficacy And Safety Of Geodon In Patients With A Diagnosis Of Bipolar I Depression

NCT00141271

COMPLETED Phase 3

Trial of Efficacy and Safety of Pregabalin in Subjects With Neuropathic Pain Associated With Lumbo-Sacral Radiculopathy

NCT00159705

COMPLETED Phase 3

Safety and Efficacy Study of Pregabalin in Fibromyalgia

NCT00151489

COMPLETED Phase 4

Mild To Moderate Erectile Dysfunction Study

NCT00137072

COMPLETED Phase 4

A Study to Assess the Pharmacodynamic Interaction Between Gabapentin and Ethanol in Healthy Subjects

NCT00666796

COMPLETED Phase 3

Pregabalin vs Placebo in Treatment of Neuropathic Pain Associated With Diabetic Peripheral Neuropathy

NCT00143156

COMPLETED Phase 4

Effect of Detrol LA on Overactive Bladder Symptoms, Sexual Quality of Life and Sexual Function in Women

NCT00143481

COMPLETED Phase 4

Safety of Pregabalin in the Treatment of Pain Due to Diabetic Peripheral Neuropathy

NCT00159731

COMPLETED Phase 3

An Open-Label Trial of Pregabalin in Patients With Fibromyalgia

NCT00151528

COMPLETED Phase 3

A Study of the Safety of Gabapentin in a Potential Over-the-Counter Population With Occasional Sleeplessness

NCT00666575

COMPLETED Phase 4

Effect and Safety Of Detrol LA In Men With Overactive Bladder Symptoms With Or Without Bladder Outlet Obstruction

NCT00147654

COMPLETED Phase 3

A Polysomnographic Study of Single-Dose Gabapentin in Transient Insomnia Induced by a Sleep Phase Advance

NCT00666770

COMPLETED Phase 4

Study of Pregabalin Therapy for Pain Relief in Subjects With Post-Herpetic Neuralgia

NCT00159666

COMPLETED Phase 3

The Long-term Study to Evaluate the Safety of Eplerenone in the Treatment of Hypertension in Children Aged 6 to 16 Years

NCT00147615

COMPLETED Phase 3

A Study of Single-Dose Gabapentin in Transient Insomnia Induced by a Sleep Phase Advance

NCT00667108

COMPLETED Phase 3

A Study of Single-Dose Gabapentin in Subjects With Transient Insomnia Induced by a Sleep Phase Advance

NCT00666939

COMPLETED Phase 3

A Study to Evaluate the Efficacy and Safety of Eplerenone in the Treatment of Hypertension in Children.

NCT00147589

COMPLETED Phase 4

Celebrex Low Dose ASA Study Examining the Incidence of Gastroduodenal Ulcers in a Healthy Population

NCT00137033

COMPLETED Phase 4

Pregabalin in the Treatment of Pain Due to Diabetic Peripheral Neuropathy

NCT00159679

COMPLETED Phase 3

A Study of the Efficacy and Safety of Pregabalin for the Treatment of Fibromyalgia

NCT00645398

COMPLETED Phase 4

Clinical Utility of Caduet in Achieving Blood Pressure and Lipid Endpoints in a Specific Patient Population

NCT00150384

TERMINATED Phase 4

A Study to Assess the Long-term Use of Alprazolam Extended Release (XL) in the Treatment of Adolescents With Panic Disorder

NCT00635076

TERMINATED Phase 4

A Study To Assess the Safety of Extended Release Alprazolam for the Treatment of Adolescents With Panic Disorder or Anxiety With Panic Attacks

NCT00634790

COMPLETED Phase 4

The Purpose of This Study is to Determine if Eplerenone is Effective in Treatment of Mild to Moderate Heart Failure

NCT00082589

COMPLETED Phase 4

A Study Comparing the Efficacy and Safety of Ziprasidone and Aripiprazole for the Treatment fo Schizophrenia or Schizoaffective Disorder in Hospitalized Patients

NCT00634348

COMPLETED Phase 2

Study to Investigate Effect of Sildenafil on Clitoral Engorgement as Measured by Magnetic Resonance Imaging (MRI) in Pre-menopausal Women With Female Sexual Arousal Disorder

NCT00640458

TERMINATED Phase 4

A Study to Evaluate the Use of Extended Release Alprazolam in the Treatment of Adolescents With Panic Disorder

NCT00635531

COMPLETED Phase 4

Safety and Efficacy of Celecoxib Versus Naproxen in the 6-month Treatment of Knee Osteoarthritis

NCT00643799

COMPLETED Phase 4

A Study to Evaluate the Efficacy of Tolterodine on Specific Symptoms in Adult Patients With Overactive Bladder.

NCT00645281

COMPLETED Phase 4

Effect of Celecoxib Versus Placebo Before and After Knee Surgery on Overall Use of Analgesics After Surgery

NCT00633438

COMPLETED Phase 3

A Long Term Extension Study Evaluating Safety Of Sildenafil Citrate When Used To Treat Pulmonary Arterial Hypertension (PAH) In Children

NCT00159874

COMPLETED Phase 4

Efficacy and Safety of Celecoxib Versus Placebo in the Treatment of Patients With Osteoarthritis of the Knee Who Were Unresponsive to Naproxen and Ibuprofen

NCT00640627

COMPLETED Phase 2

A Study of the Safety and Tolerability of Oral Ziprasidone in Children and Teens With Psychotic Disorders

NCT00650611

COMPLETED Phase 4

Safety and Efficacy of Celecoxib Versus Placebo in the Treatment of Knee Osteoarthritis in Patients Who Were Unresponsive to Naproxen and Ibuprofen

NCT00638807

COMPLETED Phase 4

Comparison of Small Bowel Lesions Associated With Celecoxib Versus Ibuprofen Plus Omeprazole

NCT00640809

COMPLETED Phase 3

A Randomized, Double-Blind, Placebo-Controlled Study of Sildenafil in Children With Pulmonary Arterial Hypertension.

NCT00159913

COMPLETED Phase 3

The Efficacy and Safety of Sildenafil Citrate Used in Combination With Intravenous Epoprostenol in PAH

NCT00159861

COMPLETED Phase 4

A Multicenter, Randomized, Parallel Group, Double-Blind, Placebo Controlled, Flexible Dose Escalation Study To Evaluate Sexual And Relationship Satisfaction In The Female Partner Of Men With Erectile Dysfunction Treated With Sildenafil Citrate

NCT00644631

COMPLETED Phase 4

Effect of Celecoxib Versus Placebo Before and After Knee Surgery on the Overall Use of Analgesics After Surgery

NCT00633386

COMPLETED Phase 2

An Open-Label, Extension Study Evaluating the Safety, Toleration, and Efficacy of Sildenafil in Women With Sexual Arousal Disorder

NCT00746967

COMPLETED Phase 4

Efficacy and Safety of Eletriptan for the Treatment of Migraine in Patients Not Satisfied With Rizatriptan Therapy

NCT00632385

COMPLETED Phase 4

A Multicenter, Double-blind Study to Evaluate the Effect of Pretreatment With a Daily Dose of Sildenafil on the As-Needed Efficacy of Viagra in Men With Erectile Dysfunction and Type 2 Diabetes

NCT00645268

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How the Pfizer's Upjohn has merged with Mylan to form Viatris archive is shaped

158 indexed studies, none listed as recruiting (0% open); 138 completed (87%).

Phase mix: 128 late (III/IV) vs 24 early (I/II) (later-stage heavy).

Top condition: Healthy (3 trials), 9 others listed.

How to read a closed sponsor archive

When recruiting_count is zero, the indexed set is completed or otherwise not open. Phase tilt still describes where archived studies sat on the investigational pathway. Re-check ClinicalTrials.gov before acting.

Pfizer's Upjohn has merged with Mylan to form Viatris: archived-pipeline peers nationwide

Peers matched on 158 indexed studies with no current recruiting: volume and archive shape, not condition overlap.

Pfizer's Upjohn has merged with Mylan to form Viatris sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 050100150200 0%5%10%15%20%25% Total trials Recruiting share Pfizer's Upjohn has merged with Mylan to form ViatrisGalderma R&DAnn & Robert H Lurie Children's Hospital of ChicagoUniversity of South CarolinaAlexion Pharmaceuticals10xBio22nd Century Group23andMe3-C Institute for Social Development
Pfizer's Upjohn has merged with Mylan to form Viatris sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

Pfizer's Upjohn has merged with Mylan to form Viatris sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 158 archived trials

Sponsors with similar archive density (± trial count)

What to do with this Pfizer's Upjohn has merged with Mylan to form Viatris page

158 registered trials is a research-attention snapshot, not an endorsement of Pfizer's Upjohn has merged with Mylan to form Viatris or any single study.

  • None of Pfizer's Upjohn has merged with Mylan to form Viatris's trials are currently recruiting in this registry; that can change as new trials post, or check the broader research index. Browse research indexes
  • Healthy is the condition Pfizer's Upjohn has merged with Mylan to form Viatris studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Healthy trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Pfizer's Upjohn has merged with Mylan to form Viatris pipeline card: 158 registered trials from official public datasets.Report a data error.