Astellas Pharma

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, Astellas Pharma sits in the top decile of US sponsors by registered trial count (#179 of 15,742 sponsors by registered trial count).

165 total trials 2 currently recruiting 143 completed early-phase tilt top decile by trial count

Astellas Pharma: 165 sponsored US clinical trials, 2 recruiting.

Astellas Pharma sponsors 165 registered US clinical trials on ClinicalTrials.gov, 2 of them currently recruiting, and 143 completed. 47 of these trials are in Phase 3-4 (later-stage) and 113 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Candidemia, with 4 trials.

Top-decile sponsor footprint

Astellas Pharma ranks in the top decile of sponsors by registered trial count (#179 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 60/100

143 of 162 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (88.3%), 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.

Open and recent trials

165 total, page 2 of 4

COMPLETED Phase 1

A Study to Characterize the Effect on the Pharmacokinetics of ASP1941 and Pioglitazone Hydrochloride When Given Together to Healthy Subjects

NCT01088919

COMPLETED Phase 2

A Study of YM155 Plus Docetaxel in Subjects With Stage III (Unresectable) or Stage IV Melanoma

NCT01009775

COMPLETED Phase 2

A Study of YM155 Plus Rituximab in Subjects With Non-Hodgkin's Lymphoma Who Have Received Prior Treatment

NCT01007292

TERMINATED Phase 1

A Study of the Safety and Pharmacokinetics of AGS-8M4 Given in Combination With Chemotherapy in Women With Ovarian Cancer

NCT01016054

COMPLETED Phase 1

Relative Bioavailability Study of Solifenacin Succinate Liquid Suspension (Fed and Fasting) Versus VESIcare Tablet (Fasting) in Healthy Volunteers

NCT01015040

COMPLETED Phase 1

A Study Evaluating Intermittent and Continuous OSI-906 and Weekly Paclitaxel in Patients With Recurrent Epithelial Ovarian Cancer (and Other Solid Tumors)

NCT00889382

COMPLETED Phase 1

Pharmacokinetic Interaction Study to Assess the Effect of ASP015K on Tacrolimus in Healthy Volunteers

NCT01430065

COMPLETED Phase 1

Study of the Effect of Food on the Pharmacokinetics of Mirabegron

NCT00939757

COMPLETED Phase 1

Pharmacokinetic Interaction Study to Assess the Effect of ASP015K on Mycophenolate Mofetil in Healthy Volunteers

NCT01364987

COMPLETED Phase 1

Pharmacokinetics of Oral Mirabegron With Different Release Rates Versus Intravenous (IV) Mirabegron

NCT00940121

COMPLETED Phase 3

A Study to Test the Efficacy and Safety of the Beta-3 Agonist Mirabegron (YM178) in Patients With Symptoms of Overactive Bladder

NCT00912964

COMPLETED Phase 2

Safety and Pharmacokinetics (PK) of Alefacept in Adolescent Subjects With Moderate to Severe Psoriasis

NCT00808223

COMPLETED Phase 2

A Study of AGS-1C4D4 Given in Combination With Gemcitabine in Subjects With Metastatic Pancreatic Cancer

NCT00902291

COMPLETED Phase 4

A Study of the Safety and Tolerance of Regadenoson in Subjects With Renal Impairment

NCT00863707

COMPLETED Phase 4

A Study of the Safety and Tolerance of Regadenoson in Subjects With Asthma or Chronic Obstructive Pulmonary Disease

NCT00862641

COMPLETED Phase 3

Caffeine's Effect on Regadenoson Administration With Single Photon Emission Computed Tomography (SPECT) Myocardial Perfusion Imaging (MPI)

NCT00826280

TERMINATED Phase 1

Study Comparing the Safety of ASP2151 to Valacyclovir and Placebo in Healthy Volunteers

NCT00870441

COMPLETED Phase 1

A Study to Evaluate the Effect of Repeat Oral Doses of YM443 on Cardiac Repolarization in Healthy Adults

NCT00850746

COMPLETED Phase 1

A Study to Assess the Safety, Tolerability and Pharmacokinetics of ASP015K

NCT01364974

COMPLETED Phase 1

A Phase 1 Dose-escalation Study of OSI-906 and Erlotinib (Tarceva®)

NCT00739453

COMPLETED Phase 2

A Study to Assess the Safety and Tolerability of ASP1941 in Adults With Type 2 Diabetes Mellitus.

NCT00790660

COMPLETED Phase 1

Pharmacokinetic Interaction Study to Assess the Effect of Repeat Doses of Rifampin on Mirabegron (YM178) in Healthy Volunteers

NCT00776516

COMPLETED Phase 1

A Phase 1 Study of the Safety and Pharmacokinetics of AGS-8M4 in Subjects With Advanced Ovarian Cancer

NCT00816764

TERMINATED Phase 1

A Phase 1 Study of the Safety and Pharmacokinetics of AGS-16M18 in Subjects With Advanced Renal Cell Cancer

NCT00816686

COMPLETED Phase 1

A Pharmacokinetic Study of YM178 in Normal Subjects and Those With Mild, Moderate, and Severe Renal Impairment

NCT00750620

COMPLETED Phase 1

A Study to Assess the Safety, Tolerability and Pharmacokinetics of ASP015K

NCT01387087

COMPLETED Phase 1

Study of Oral OSI-027 in Patients With Advanced Solid Tumors or Lymphoma

NCT00698243

COMPLETED Phase 2

A Study to Evaluate the Safety and Efficacy of YM150 in Patients With Knee Replacement Surgery

NCT00595426

COMPLETED Phase 3

Study to Test the Long Term Safety and Efficacy of the Beta-3 Agonist Mirabegron (YM178) in Patients With Symptoms of Overactive Bladder

NCT00688688

COMPLETED Phase 3

Isavuconazole in the Treatment of Renally Impaired Aspergillosis and Rare Fungi

NCT00634049

COMPLETED Phase 3

A Study to Assess Efficacy and Safety of the Beta-3 Agonist Mirabegron (YM178) in Patients With Symptoms of Overactive Bladder

NCT00662909

COMPLETED Phase 1

A Study of Pharmacokinetics and Safety of Alefacept in Caucasian and Japanese Healthy Volunteers

NCT00653822

COMPLETED Phase 2

A Study to Assess the Safety and Efficacy of Alefacept in Kidney Transplant Recipients

NCT00543569

COMPLETED Phase 1

Phase I Study of OSI-930 and Erlotinib in Cancer Tumors

NCT00603356

COMPLETED Phase 1

A Study of Safety and Pharmacokinetics of Repeated Dose of Micafungin as Antifungal Prophylaxis in Children and Adolescents Who Undergo Hematopoietic Stem Cell Transplant

NCT00606268

COMPLETED Phase 1

Study of Mycamine® in Children With Fungal Infections to Evaluate Safety and Blood Levels of the Drug

NCT00608335

COMPLETED Phase 1

Study of Mycamine® in Infants and Toddlers With Fungal Infections to Evaluate Safety and Blood Levels of the Drug

NCT00607763

COMPLETED Phase 1

AGS-1C4D4 in Patients With Advanced Hormone Refractory Prostate Cancer

NCT00519233

COMPLETED Phase 4

Study of VESIcare® In Overactive Bladder (OAB) Subjects to Evaluate Symptom Bother and Health Related Quality of Life

NCT00573508

COMPLETED Phase 1

An Open-Label Study of the Safety and Pharmacokinetics of Repeated-Dose Micafungin in Neonates

NCT00818584

COMPLETED Phase 1

Study of Intermittent OSI-906 Dosing

NCT00514306

COMPLETED Phase 4

Study to Evaluate the Immune Response to Pneumococcal Vaccine in Alefacept-treated Adults With Chronic Plaque Psoriasis

NCT00493324

COMPLETED Phase 2

A Study With ASP2151 in Subjects With Recurrent Episodes of Genital Herpes

NCT00486200

COMPLETED Phase 1

Study of Continuous OSI-906 Dosing

NCT00514007

COMPLETED Phase 2

Solifenacin Succinate With Tamsulosin HCl in Males With Lower Urinary Tract Symptoms and Bladder Outlet Obstruction

NCT00507455

TERMINATED Phase 2

Study of YM155 in Refractory Diffuse Large B-cell Lymphoma (DLBCL) Subjects

NCT00498914

COMPLETED Phase 1

An Open-Label Study of YM155 + Docetaxel in Subjects With Advanced Hormone Refractory Prostate Cancer and Other Solid Tumors

NCT00514267

COMPLETED Phase 3

Isavuconazole (BAL8557) in the Treatment of Candidemia and Other Invasive Candida Infections

NCT00413218

COMPLETED Phase 3

Isavuconazole (BAL8557) for Primary Treatment of Invasive Aspergillosis

NCT00412893

COMPLETED Phase 2

A Study of Mirabegron (YM178) in Men With Lower Urinary Tract Symptoms (LUTS) and Bladder Outlet Obstruction (BOO)

NCT00410514

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Phase Distribution

PhaseTrial count
Phase 1 59
Phase 2 54
Phase 3 28
Phase 4 19

What is open in the Astellas Pharma pipeline

2 recruiting of 165 indexed (1% open); 143 completed (87%).

Phase mix: 47 late (III/IV) vs 113 early (I/II) (early-phase heavy).

Top condition: Candidemia (4 trials), 9 others listed.

How open-pipeline share is computed

Recruiting share is recruiting_count divided by trial_count for this sponsor in the public registry export. Status can change between pulls; treat the figure as a research-attention snapshot, not product availability.

Astellas Pharma: open-pipeline peers nationwide

Peers matched on 165 registered trials and 1% open enrollment, not the therapeutic-area sidebar.

Astellas Pharma sits at or above the median trial volume and below 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 50100150200 0%5%10%15% Total trials Recruiting share Astellas PharmaTeva Branded Pharmaceutical Products R&DWyeth is now a wholly owned subsidiary of PfizerTemple UniversityTufts UniversityUniversity of New MexicoAbbott NutritionBaxalta now part of ShirePower Life Sciences
Astellas Pharma sits at or above the median trial volume and below the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

Astellas Pharma sits at or above the median trial volume and below the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 165 trials (± recruiting share)

Sponsors near 1% open enrollment (± trial volume)

What to do with this Astellas Pharma page

165 registered trials is a research-attention snapshot, not an endorsement of Astellas Pharma or any single study.

  • 2 of Astellas Pharma's trials are currently recruiting, check each one's own eligibility criteria before contacting a site. Browse recruiting trials
  • Candidemia is the condition Astellas Pharma studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Candidemia 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.

Astellas Pharma pipeline card: 165 registered trials from official public datasets.Report a data error.