Drug

Arbaclofen

As of the edition of 20 October 2026, Arbaclofen is a small molecule: stopped in 2019; acts on GABBR1 and GABBR2.

Sources: FDA Orange Book and Purple Book, other approval registers, ClinicalTrials.gov, ChEMBL.

The drug

Status
Stopped, 2019
Kind
Small molecule
Registered trials
16, 5 stopped early
Disease areas
Mental health; Nervous system; Immune system; Bones, joints and muscles; Inherited and neonatal

US protection

No US approval on record.

With no US approval on record there are no listed US patents or exclusivities.

This is the US only.

Targets

GeneProteinUniProt
GABBR2Gamma-aminobutyric acid type B receptor subunit 2O75899
GABBR1Gamma-aminobutyric acid type B receptor subunit 1Q9UBS5

Registered trials

PhaseTrialsCompletedActiveStopped early
Phase not stated3300
Phase 12101
Phase 24201
Phase 37313
All trials16

Who ran its trials

CompanyRoleYears
Seaside TherapeuticsLead sponsor of trials2009 to now
RVL PharmaceuticalsLead sponsor of trials2012 to now