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Arbaclofen Placarbil

Phase 2

Alcohol Use Disorder | Small Molecules | Psychiatry |Supernus Pharmaceuticals, Inc.|Trials Updated: Jan 23, 2017

Arbaclofen Placarbil development status

Highest phase Phase 2
Registered trials 1 across 1 sponsor since Jul 2015

Arbaclofen Placarbil target and mechanism

Molecular targetGABBR1, GABBR2
Target classAgonist
ModalitySmall Molecules

Also known as Arbaclofen Placarbil SR

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment18

FDA Designations

No designations recorded

Arbaclofen Placarbil clinical trials

Arbaclofen Placarbil · 1 trial · 1 indication

Phase 2 1
NCT02511886A Dose-Escalation Study to Determine the Maximum Tolerated Dose of Arbaclofen Placarbil in Subjects With Alcohol Use DisorderAlcohol Use Disorder
COMPLETED18 Analytics
PHASE2COMPLETED
A Dose-Escalation Study to Determine the Maximum Tolerated Dose of Arbaclofen Placarbil in Subjects With Alcohol Use Disorder
Alcohol Use DisorderUnlock trial analytics

Study Endpoints

Primary Endpoints

Maximum Tolerated Dose (MTD) of Arbaclofen Placarbil
Up to 30 day residential (inpatient) treatment period

A data monitoring committee (DMC) will review and make a recommendation to stop dosing escalation based on the review of the unblinded AE and safety assessments or when at least one subject on active investigational product experiences an SAE related to the investigational product. The MTD and the dosage that will not be exceeded in the further development of this compound will be based upon a comprehensive review of the safety data.

Maximum Observed Plasma Concentration of Arbaclofen Placarbil (AP) (Cmax)
Prior to the initial dose of AP on day 1 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8,10, 12, 16, 20, and 24 hours post-dose (predose day 2); and prior to dose of AP on days 6, 12, 18, and 24 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 hours post dose

Blood samples will be obtained and plasma concentrations determined using a validated liquid chromatography with tandem mass spectrometry methods

Time to Maximum Observed Plasma Concentration of Arbaclofen Placarbil (AP) (Tmax)
Prior to the initial dose of AP on day 1 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8,10, 12, 16, 20, and 24 hours post-dose (predose day 2); and prior to dose of AP on days 6, 12, 18, and 24 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 hours post dose

Blood samples will be obtained and plasma concentrations determined using a validated liquid chromatography with tandem mass spectrometry methods

Area Under the Concentration -Time Curve from time 0 to the time of the last quantifiable plasma concentration (AUClast)
Prior to the initial dose of AP on day 1 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8,10, 12, 16, 20 hours post dose

Blood samples will be obtained and plasma concentrations determined using a validated liquid chromatography with tandem mass spectrometry methods

Area Under the Concentration -Time Curve from time 0 extrapolated to infinite time (AUCinf)
Prior to the initial dose of AP on day 1 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8,10, 12, 16, 20 hours post dose

Blood samples will be obtained and plasma concentrations determined using a validated liquid chromatography with tandem mass spectrometry methods

Area Under the Concentration -Time Curve from time 0 to 12 hours post dose(AUC0-12)
Prior to the initial dose of AP on day 1 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8,10, 12, 16, 20 hours post dose

Blood samples will be obtained and plasma concentrations determined using a validated liquid chromatography with tandem mass spectrometry methods

Apparent Terminal Plasma Half-Life (t 1/2)
Prior to the initial dose of AP on day 1 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8,10, 12, 16, 20 hours post

Blood samples will be obtained and plasma concentrations determined using a validated liquid chromatography with tandem mass spectrometry methods

Apparent Terminal Phase Rate Constant
Prior to the initial dose of AP on day 1 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8,10, 12, 16, 20 hours post dose

Apparent terminal rate constant (1/h), determined by linear regression of the terminal points of the log-linear concentration-time curve. Visual assessment will be used to identify the terminal linear phase of the concentration-time profile. A minimum of 3 data points will be used for determination.

Percentage of AUCinf obtained by extrapolation (%AUCex)
Prior to the initial dose of AP on day 1 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8,10, 12, 16, 20 hours post dose

If the extrapolated area is greater than 20% of AUCinf, then AUCinf will be listed but not included in summary presentations or statistical analyses

Apparent Oral Clearance (CL/F)
Prior to the initial dose of AP on day 1, 6, 12, 18, 24 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8,10, 12, 16, 20 hours post dose

Calculated as Dose/AUCinf

Apparent Volume of Distribution (Vz/F)
Prior to the initial dose of AP on day 1 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8,10, 12, 16, 20 hours post dose

Calculated as Dose/apparent terminal phase rate constant \* AUCinf

Area Under the Plasma Concentration-Time Curve From Time Zero To The End of Dosing Interval (AUCtau)
Prior to dose of AP on days 6, 12, 18, and 24 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 hours post dose

Area Under the Plasma Concentration-Time Curve From Time 0 to the End of the Dosing Interval

Minimum Observed Plasma Concentration (Cmin)
Prior to dose of AP on days 6, 12, 18, and 24 and 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 hours post dose

Blood samples will be obtained and plasma concentrations determined using a validated liquid chromatography with tandem mass spectrometry methods

Pre-Dose Plasma Concentration (Ctrough)
Prior to dose of AP on days 6, 12, 18, 19, 20, 21, 22, 23, and 24 hours post dose

Blood samples will be obtained and plasma concentrations determined using a validated liquid chromatography with tandem mass spectrometry methods

Secondary Endpoints

The Number of Participants Who Experienced Serious or Non-Serious Adverse Events
Up to 11 weeks
Columbia Suicide Severity Rating Scale (C-SSRS)
Up to 11 weeks
The Obsessive-Compulsive Drinking Scale (OCDS)
Up to 11 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Arbaclofen Placarbil (AP)EXPERIMENTALOrally administered Arbaclofen Placarbil (AP) sustained release (SR) tablets
PlaceboPLACEBO_COMPARATORSubjects remain on placebo for entire study

Interventions

NameTypeDescription
Arbaclofen PlacarbilDRUGArbaclofen Placarbil
PlaceboDRUGPlacebo matched tablets
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. 18 to 65 years of age. 2. Diagnosis of AUD confirmed by the Mini-International Neuropsychiatric Interview. 3. For those requiring medical detoxification from alcohol, subjects will be required to have completed a program for detoxification from alcohol within 4 days prior to ...

Countries:United States
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Frequently asked questions about Arbaclofen Placarbil

What is Arbaclofen Placarbil?

Arbaclofen Placarbil is an investigational small-molecule drug developed by Supernus Pharmaceuticals for Alcohol Use Disorder. It is a Phase 2 candidate in the psychiatry therapeutic area. It has also been referred to as Arbaclofen Placarbil SR. It is not an approved medicine and remains in clinical development.

What is Arbaclofen Placarbil used for in Alcohol Use Disorder?

Arbaclofen Placarbil is being studied as a treatment for Alcohol Use Disorder, a psychiatric condition. Its clinical development has focused on this indication, including a Phase 2 dose-escalation study in adults with Alcohol Use Disorder. It is investigational and has not been established as a therapy for this condition.

What does Arbaclofen Placarbil target?

Arbaclofen Placarbil targets GABBR1 and GABBR2, the subunits of the GABA-B receptor, and acts as an agonist at this receptor. Agonist activity at the GABA-B receptor is the mechanism described for this small molecule. The drug is being developed in Alcohol Use Disorder on the basis of this target class.

Who makes Arbaclofen Placarbil?

Arbaclofen Placarbil is developed by Supernus Pharmaceuticals, Inc., which trades under the ticker SUPN. Supernus is the company associated with the clinical program for this small-molecule candidate in Alcohol Use Disorder. The compound is also referred to as Arbaclofen Placarbil SR.

What phase is Arbaclofen Placarbil in?

Arbaclofen Placarbil is in Phase 2 development. Its clinical program in Alcohol Use Disorder consists of one completed Phase 2 trial, and no trials are currently active. The drug is investigational and is not approved for marketing in the United States.

What clinical trials is Arbaclofen Placarbil in?

Arbaclofen Placarbil has been studied in one completed Phase 2 trial, NCT02511886, a dose-escalation study to determine the maximum tolerated dose in subjects with Alcohol Use Disorder. The trial enrolled 18 participants in the United States, was randomized, double-blind, and placebo-controlled, and included adults 18 years and older.

Is Arbaclofen Placarbil the same as Arbaclofen Placarbil SR?

Yes, Arbaclofen Placarbil SR is another name for Arbaclofen Placarbil, the investigational small-molecule GABA-B receptor agonist developed by Supernus Pharmaceuticals for Alcohol Use Disorder. Readers searching either name are looking at the same Phase 2 drug candidate under development by Supernus.