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Alogabat

Phase 2

Angelman Syndrome | Small molecule | Rare Disease |Roche Holding AG|Last Updated: Dec 4, 2025

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment48

FDA Designations

No designations recorded

Clinical trial landscape

Alogabat · 1 trial · 1 indication

Phase 2 1
NCT05630066A Study to Investigate the Pharmacokinetics (PK) and Safety and to Provide Proof of Mechanism of Alogabat in Children and Adolescents Aged 5-17 Years With Angelman Syndrome (AS) With Deletion Genotype.Angelman Syndrome
COMPLETED48 Analytics
PHASE2COMPLETED
A Study to Investigate the Pharmacokinetics (PK) and Safety and to Provide Proof of Mechanism of Alogabat in Children and Adolescents Aged 5-17 Years With Angelman Syndrome (AS) With Deletion Genotype.
Angelman SyndromeUnlock trial analytics

Study Endpoints

Primary Endpoints

Part 1: Age-group Based Ratio of Plasma PK Parameter, Area Under the Concentration-time Curve (AUC)
Up to 12 Weeks

Age-group based ratio of plasma PK parameters in pediatric participants with AS versus data collected from adult healthy volunteers and participants with autism spectrum disorder (ASD) (AUC)

Part 1: Age-group Based Ratio of Plasma PK Parameter, Apparent Clearance (CL/F)
Up to 12 Weeks

Age-group based ratio of plasma PK parameters in pediatric participants with AS versus data collected from adult healthy volunteers and participants with ASD (CL/F)

Part 2: Change From Baseline to Week 2, 4, and 12 in Resting State EEG Power in the Beta Band
Week 2, 4, and 12

Secondary Endpoints

Parts 1 and 2: Plasma PK Parameter of Alogabat, Maximum Concentration (Cmax)
Up to 12 Weeks
Parts 1 and 2: Plasma PK Parameter of Alogabat, AUC
Up to 12 Weeks
Parts 1 and 2: Plasma PK Parameter of Alogabat, CL/F
Up to 12 Weeks
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part 1 Adult Alogabat Dose (Age 15-17)EXPERIMENTALIn Part 1 of the study participants will receive alogabat once a day (QD).
Part 1 Age-adjusted Dose (Age 10-14)EXPERIMENTALIn Part 1 of the study, participants will receive age-adjusted QD doses of alogabat.
Part 1 Age-adjusted Dose (Age 5-9)EXPERIMENTALIn Part 1 of the study, participants will receive age-adjusted QD doses of alogabat.
Part 2 Cohort 1EXPERIMENTALIn Part 2 of the study, the dosing will depend upon the results of Part 1 with two different dose levels per cohort. Doses can be age-adjusted.
Part 2 Cohort 2EXPERIMENTALIn Part 2 of the study, the dosing will depend upon the interim results with two different dose levels per cohort. Doses can be age-adjusted.
Part 1 Optional CohortEXPERIMENTALIf dose adjustments (e.g., increase or decrease in dose) are required, particularly due to uncertainty of the clearance estimates (e.g., due to high variability) or over-/underprediction of the pediatric clearance versus adult clearance, additional participants may be recruited in any of the of the 3 age-groups in order to confirm the exposure equivalence. A total of two optional cohorts may be utilized in this study, allocated to Part 1 and/or Part 2.
Part 2 Optional CohortEXPERIMENTALIn Part 2 of the study, the dosing will depend upon the interim results with two different dose levels per cohort. Doses can be age-adjusted.

Interventions

NameTypeDescription
AlogabatDRUGAlogabat will be administered QD with dose depending on cohort and age of the participant.
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Eligibility Criteria

Age Range5 Years to 17 Years
SexALL
Healthy VolunteersNo
Study Sites19

Inclusion Criteria: * Clinical diagnosis of AS and a genetic subtype of deletion on chromosome 15q11q13 confirmed by a historical molecular diagnosis * The participant's general health status, in the context of the disease under study, allows them to participate in a clinical trial in the opinion o...

Countries:United StatesAustraliaFranceGermanyItalySpain
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Frequently asked questions about Alogabat

What is Alogabat used for in Angelman Syndrome?

Alogabat is an investigational small molecule being studied for the treatment of Angelman Syndrome, a rare genetic disorder. It is currently in Phase 2 clinical development and has not been approved by regulatory authorities. The drug is being evaluated in children and adolescents aged 5 to 17 years with Angelman Syndrome who have the deletion genotype.

Who makes Alogabat?

Alogabat is being developed by Roche Holding AG, a multinational healthcare company. Roche's stock is traded over-the-counter under the ticker symbol RHHBY. The company is conducting clinical trials to evaluate the safety and efficacy of Alogabat in patients with Angelman Syndrome.

What phase is Alogabat in?

Alogabat is in Phase 2 clinical development. It is an investigational drug and has not received approval from the U.S. Food and Drug Administration or any other regulatory agency. The drug is being studied in a completed Phase 2 trial that enrolled 48 participants with Angelman Syndrome.

What clinical trials is Alogabat in?

Alogabat has one completed Phase 2 clinical trial registered under NCT05630066. The study investigated the pharmacokinetics, safety, and proof of mechanism of Alogabat in children and adolescents aged 5-17 years with Angelman Syndrome and the deletion genotype. The trial was conducted in the United States, Australia, France, Germany, Italy, and Spain.

How does Alogabat work?

Alogabat is a small molecule therapeutic being developed for Angelman Syndrome. The specific molecular target of Alogabat has not been disclosed in available information, so its precise mechanism of action is not publicly detailed. The drug is being studied to understand its pharmacokinetics and provide proof of mechanism in the target patient population.