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ALKS 3831

Phase 3

Schizophrenia | Small molecule | Psychiatry |Alkermes plc|Last Updated: Sep 26, 2024

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLED
Total Trials6
Total Enrollment2,099

FDA Designations

No designations recorded

Clinical trial landscape

ALKS 3831 · 7 trials · 5 indications

Phase 3 5Phase 1 2
NCT03201757Study to Evaluate the Long-term Safety, Tolerability, and Durability of Treatment Effect of ALKS 3831Schizophrenia
COMPLETED523 Analytics
NCT03187769Study to Evaluate the Efficacy of ALKS 3831 on Body Weight in Young Adults Who Have Been Recently Diagnosed With Schizophrenia, Schizophreniform, or Bipolar I DisorderSchizophrenia
COMPLETED426 Analytics
NCT02873208A Phase 3, Long-term Safety and Tolerability Study of ALKS 3831 in Adults With SchizophreniaSchizophrenia
COMPLETED266 Analytics
NCT02694328A Study of ALKS 3831 in Adults With Schizophrenia (The ENLIGHTEN-2 Study)Schizophrenia
COMPLETED561 Analytics
NCT02669758A Long-Term Safety and Tolerability Study of ALKS 3831 in Adults With SchizophreniaSchizophrenia
COMPLETED281 Analytics
PHASE3COMPLETED
Study to Evaluate the Long-term Safety, Tolerability, and Durability of Treatment Effect of ALKS 3831
SchizophreniaUnlock trial analytics
PHASE3COMPLETED
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
SchizophreniaUnlock trial analytics
PHASE3COMPLETED
A Phase 3, Long-term Safety and Tolerability Study of ALKS 3831 in Adults With Schizophrenia
SchizophreniaUnlock trial analytics
PHASE3COMPLETED
A Study of ALKS 3831 in Adults With Schizophrenia (The ENLIGHTEN-2 Study)
SchizophreniaUnlock trial analytics
PHASE3COMPLETED
A Long-Term Safety and Tolerability Study of ALKS 3831 in Adults With Schizophrenia
SchizophreniaUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence of Adverse Events
Up to 48 months
Change From Baseline in Clinical Global Impression-Severity (CGI-S) Scale
Up to 48 months

The clinical global impression - severity scale (CGI-S) is a 7-point scale that requires the clinician to rate the severity of the patient's illness at the time of assessment, relative to the clinician's past experience with patients who have the same diagnosis; 1 being normal, not ill at all and 7 being among the severally ill patients

Percent Change From Baseline in Body Weight at Week 12
Baseline and 12 weeks

The efficacy analyses were performed using the Final Analysis Set which is defined as all randomized subjects who received one dose of study drug and had at least 1 primary efficacy assessment after administration of study drug

Number of Subjects With Adverse Events
Up to 52 weeks

Overall summary of treatment emergent adverse events during the treatment period

Percent Change From Baseline in Body Weight at Week 24
Baseline and Week 24
Percentage of Participants With >/= 10% Weight Gain at Week 24
Baseline and Week 24
Number of Participants With Adverse Events (AEs)
Up to 52 weeks
Changes in blood glucose concentrations
21 days

Differences will be compared among treatment groups

Maximum plasma concentration (Cmax)
Up to 15 days of dosing
Area under the concentration vs time curve over the 24 hour dosing interval (AUC0-24h)
Up to 15 days of dosing

Secondary Endpoints

Percentage of Subjects With ≥10% Weight Gain at Week 12
Baseline and 12 weeks
Percentage of Subjects With ≥7% Weight Gain at Week 12
Baseline and 12 weeks
Number of Participants Experiencing of Adverse Events (AEs)
Up to 16 weeks
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ALKS 3831EXPERIMENTALCoated bilayer tablet
OlanzapineACTIVE_COMPARATORCoated bilayer tablet
PlaceboPLACEBO_COMPARATOROral, bilayer tablet
Group 1EXPERIMENTALOlanzapine/samidorphan 10 mg/10 mg
Group 2EXPERIMENTALOlanzapine/samidorphan 20 mg/10 mg

Interventions

NameTypeDescription
ALKS 3831DRUGOlanzapine + samidorphan, daily oral dosing
OlanzapineDRUGDaily oral dosing
PlaceboDRUGDaily dosing for 21 consecutive days
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Eligibility Criteria

Age Range16 Years to 70 Years
SexALL
Healthy VolunteersNo
Study Sites85

Inclusion Criteria: * Willing and able to give informed consent/assent as per local requirements * Agrees to use an acceptable method of contraception during the study, and for 30 days after any study drug administration, unless surgically sterile or post-menopausal * Has the potential to benefit f...

Countries:United StatesAustriaBulgariaIrelandIsraelItalyPolandPuerto RicoRussiaSerbiaSouth KoreaUkraineUnited KingdomGermanySpain
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Frequently asked questions about ALKS 3831

What is ALKS 3831 used for?

ALKS 3831 is an investigational small molecule being studied for the treatment of schizophrenia. It has also been evaluated in healthy volunteers for research purposes. The drug is in clinical development and is not approved by the FDA.

Who makes ALKS 3831?

ALKS 3831 is being developed by Alkermes plc, a biopharmaceutical company. Alkermes is publicly traded under the ticker symbol ALKS on the NASDAQ stock exchange.

What phase is ALKS 3831 in?

ALKS 3831 has completed Phase 1, Phase 3, and long-term safety studies. The most advanced completed trials are Phase 3 studies in schizophrenia. The drug remains investigational and is not FDA approved.

What clinical trials is ALKS 3831 in?

ALKS 3831 has been studied in several clinical trials, including NCT02669758, a long-term safety study in adults with schizophrenia, and NCT03187769, a study evaluating its effect on body weight in young adults with schizophrenia or bipolar I disorder. All trials listed are completed.

How does ALKS 3831 work?

ALKS 3831 is a small molecule developed for schizophrenia. Its specific molecular target has not been disclosed in the available clinical trial information. The drug is being studied for its efficacy and safety in treating schizophrenia symptoms.

Is ALKS 3831 the same as any other drug?

ALKS 3831 is the primary name used in clinical trials. No alternative names have been reported in the study records. It is an investigational compound distinct from other marketed antipsychotics.