Alkermes

Open enrollment across a mixed-phase pipeline

According to ClinicalTrials.gov-derived indexes, Alkermes sits in the top decile of US sponsors by registered trial count (#314 of 15,742 sponsors by registered trial count).

66 total trials 6 currently recruiting 58 completed top decile by trial count

Alkermes: 66 sponsored US clinical trials, 6 recruiting.

Alkermes sponsors 66 registered US clinical trials on ClinicalTrials.gov, 6 of them currently recruiting, and 58 completed. 28 of these trials are in Phase 3-4 (later-stage) and 36 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Schizophrenia, with 7 trials.

Top-decile sponsor footprint

Alkermes ranks in the top decile of sponsors by registered trial count (#314 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

B 82/100

58 of 60 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (96.7%), 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

66 total, page 1 of 2

RECRUITING Phase 3

A Study to Evaluate the Efficacy, Safety and Tolerability of ALKS 2680 in Adults With Narcolepsy Type 1 (Brilliance NT1 - 304)

NCT07540897

RECRUITING Phase 3

A Study to Evaluate the Efficacy and Safety of ALKS 2680 in Adults With Narcolepsy Type 2

NCT07502443

RECRUITING Phase 3

A Study to Evaluate the Efficacy and Safety of ALKS 2680 in Adults With Narcolepsy Type 1

NCT07455383

RECRUITING Phase 2

A Study to Evaluate the Safety and Effectiveness of ALKS 2680 in Subjects With Idiopathic Hypersomnia

NCT06843590

RECRUITING Phase 2

A Long-Term Study of ALKS 2680 in Subjects With Narcolepsy and Idiopathic Hypersomnia

NCT06767683

RECRUITING Phase 3

Study to Evaluate Weight Gain as Assessed by Change in BMI Z-score in Pediatric Subjects With Schizophrenia or Bipolar I Disorder

NCT05303064

COMPLETED Phase 2

A Study to Evaluate the Safety and Effectiveness of ALKS 2680 in Subjects With Narcolepsy Type 2

NCT06555783

COMPLETED Phase 2

A Study to Evaluate the Safety and Effectiveness of ALKS 2680 in Subjects With Narcolepsy Type 1 (ALKS 2680-201)

NCT06358950

COMPLETED Phase 1

Study of the Breast Milk Pharmacokinetics of Olanzapine and Samidorphan

NCT05547100

COMPLETED Phase 1

Phase 1 Study of OLZ/SAM in Pediatric Subjects With Bipolar I Disorder

NCT04987658

COMPLETED

Observational Study of Long Acting Injectable Medications (LAIs) in Schizophrenia (OASIS)

NCT03919994

TERMINATED Phase 3

A Long Term Study of ALKS 5461 in the Treatment of Refractory Major Depressive Disorder (MDD)

NCT03610048

COMPLETED Phase 3

A Study of Aripiprazole Lauroxil or Paliperidone Palmitate for the Treatment of Schizophrenia

NCT03345979

COMPLETED Phase 3

Study to Evaluate the Long-term Safety, Tolerability, and Durability of Treatment Effect of ALKS 3831

NCT03201757

COMPLETED Phase 3

A Study of ALKS 5461 for Treatment Refractory Major Depressive Disorder (MDD)

NCT03188185

COMPLETED Phase 3

Study to Evaluate the Efficacy of ALKS 3831 on Body Weight in Young Adults Who Have Been Recently Diagnosed With Schizophrenia, Schizophreniform, or Bipolar I Disorder

NCT03187769

COMPLETED Phase 1

An Insulin Sensitivity Study in Healthy Subjects

NCT02922426

COMPLETED Phase 3

A Phase 3, Long-term Safety and Tolerability Study of ALKS 3831 in Adults With Schizophrenia

NCT02873208

COMPLETED Phase 1

A Phase 1 Safety Study in Adults With Schizophrenia

NCT02804568

COMPLETED Phase 3

Evaluating Naltrexone for Use in Conjunction With Buprenorphine in Adults With Opioid Use Disorder Transitioning From Buprenorphine Maintenance Prior to First Dose of VIVITROL

NCT02696434

COMPLETED Phase 3

A Study of ALKS 3831 in Adults With Schizophrenia (The ENLIGHTEN-2 Study)

NCT02694328

COMPLETED Phase 3

A Long-Term Safety and Tolerability Study of ALKS 3831 in Adults With Schizophrenia

NCT02669758

COMPLETED Phase 1

A Study of Aripiprazole Lauroxil in Subjects With Schizophrenia or Schizoaffective Disorder

NCT02636842

COMPLETED Phase 4

A Study of Aripiprazole Lauroxil (Also Known as ARISTADA TM) in Subjects With Schizophrenia

NCT02634320

COMPLETED Phase 3

A Study of ALKS 3831 in Adults With Acute Exacerbation of Schizophrenia (the ENLIGHTEN-1 Study)

NCT02634346

COMPLETED Phase 3

Naltrexone for Use in Conjunction With Buprenorphine in Adults With Opioid Use Disorder Prior to First Dose of VIVITROL® (Naltrexone for Extended-Release Injectable Suspension)

NCT02537574

COMPLETED Phase 1

Pharmacokinetics and Safety of ALKS 5461 in Subjects With Renal Impairment and Normal Renal Function

NCT02508506

COMPLETED Phase 1

A Water Consumption Study of ALKS 5461 in Healthy Volunteers

NCT02521857

COMPLETED Phase 1

A Drug-drug Interaction Study of ALKS 5461 in Healthy Volunteers

NCT02545439

COMPLETED Phase 1

A Study to Evaluate the Effect of ALKS 5461 on QT Intervals in Healthy Volunteers

NCT02479308

COMPLETED Phase 1

A Study of [14c]-Samidorphan (Also Known as ALKS 33) in Healthy, Male Volunteers

NCT02504463

COMPLETED Phase 1

Pharmacokinetics and Safety of ALKS 5461 in Healthy Subjects and Subjects With Hepatic Impairment and Normal Hepatic Function

NCT02452801

COMPLETED Phase 1

A Study of the Abuse Liability Potential of ALKS 5461 in Healthy, Non-Dependent, Recreational Opioid Users

NCT02413281

COMPLETED Phase 1

An Open-Label Study of Aripiprazole Lauroxil in Subjects With Stable Schizophrenia

NCT02320032

COMPLETED Phase 1

A Drug-Drug Interaction Study of ALKS 5461 in Healthy Volunteers

NCT02272764

COMPLETED Phase 1

A Study of the Abuse Liability Potential of Samidorphan in Healthy, Non-Dependent, Recreational Opioid Users

NCT02218021

COMPLETED Phase 3

A Study of ALKS 5461 for the Treatment of Major Depressive Disorder (MDD) - FORWARD-5 Study

NCT02218008

COMPLETED Phase 3

A Long-Term Safety Study of ALKS 5461

NCT02141399

COMPLETED Phase 3

A Study of ALKS 5461 for the Treatment of Major Depressive Disorder (MDD) - the FORWARD-3 Study

NCT02158546

COMPLETED Phase 3

A Study of ALKS 5461 for the Treatment of Major Depressive Disorder (MDD) - the FORWARD-4 Study

NCT02158533

COMPLETED Phase 2

A Study of ALKS 3831 in Subjects With Schizophrenia and Alcohol Use Disorder

NCT02161718

COMPLETED Phase 3

A Study of Different Titration Schedules of ALKS 5461 in Adults With Major Depressive Disorder (MDD)

NCT02085135

COMPLETED Phase 1

A Study of ALKS 5461 in Healthy Volunteers

NCT02068105

COMPLETED Phase 3

An Extension of a Long-term Safety Study of ALKS 9072 (Also Known as ALKS 9070)

NCT01895452

COMPLETED Phase 2

A Study of ALKS 3831 in Adults With Schizophrenia

NCT01903837

COMPLETED Phase 3

A Long-term Safety Study of ALKS 9072 (Also Known as ALKS 9070)

NCT01626456

COMPLETED Phase 1

A Study of ALKS 9072 in Subjects With Chronic Stable Schizophrenia

NCT01493726

COMPLETED Phase 2

A Study to Evaluate ALKS 5461 in Subjects With Major Depressive Disorder (MDD)

NCT01500200

COMPLETED Phase 3

A Study to Evaluate the Efficacy and Safety of ALKS 9072 (Also Known as Aripiprazole Lauroxil, ALKS 9070, or ARISTADA) in Subjects With Schizophrenia

NCT01469039

TERMINATED Phase 3

Efficacy, Safety and Tolerability Study of N1539 in Subjects After Abdominal Laparoscopic Surgery

NCT01436032

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What is open in the Alkermes pipeline

6 recruiting of 66 indexed (9% open); 58 completed (88%).

Phase mix: 28 late (III/IV) vs 36 early (I/II) (balanced across stages).

Top condition: Schizophrenia (7 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.

Alkermes: open-pipeline peers nationwide

Peers matched on 66 registered trials and 9% open enrollment, not the therapeutic-area sidebar.

Alkermes 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 020406080 5%10%15%20% Total trials Recruiting share AlkermesCornell UniversityNew Mexico Cancer Research AllianceUniversity of KansasPrisma Health-UpstateDBV TechnologiesFlorida Gulf Coast UniversityGenfitHiberCell
Alkermes 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).

Alkermes 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 66 trials (± recruiting share)

Sponsors near 9% open enrollment (± trial volume)

What to do with this Alkermes page

66 registered trials is a research-attention snapshot, not an endorsement of Alkermes or any single study.

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

Alkermes pipeline card: 66 registered trials from official public datasets.Report a data error.