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Terminated Phase 3 Interventional Results available

A Study to Evaluate the Safety and Tolerability of SAGE-718 in Participants With Huntington's Disease

ClinicalTrials.gov ID: NCT05655520

Public ClinicalTrials.gov record NCT05655520. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Nov 3, 2026, 2:22 PM EST

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3, Multicenter, Open-label Safety Study to Evaluate the Long-term Safety and Tolerability of SAGE-718 in Participants With Huntington's Disease

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The primary purpose of the study is to evaluate the safety and tolerability of SAGE-718 softgel lipid capsule in participants with Huntington's Disease (HD)

Study identification

NCT ID
NCT05655520
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 3
Lead sponsor
Supernus Pharmaceuticals, Inc.
Industry
Enrollment
153 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
25 Years to 65 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 14, 2022 (Actual)
Primary completion
Jan 20, 2025 (Actual)
Completion
Jan 20, 2025 (Actual)
Last update posted
Dec 17, 2025

2022 – 2025

United States locations

U.S. sites
29
U.S. states
21
U.S. cities
28
Facility City State ZIP Site status
Sage Investigational Site Birmingham Alabama 35233 —
Sage Investigational Site Little Rock Arkansas 72205 —
Sage Investigational Site La Jolla California 92037 —
Sage Investigational Site Los Alamitos California 90720 —
Sage Investigational Site Los Angeles California 90095 —
Sage Investigational Site Sacramento California 95817 —
Sage Investigational Site Englewood Colorado 80113 —
Sage Investigational Site Washington D.C. District of Columbia 20007 —
Sage Investigational Site Boca Raton Florida 33431 —
Sage Investigational Site Tampa Florida 33612 —
Sage Investigational Site Chicago Illinois 60611 —
Sage Investigational Site Chicago Illinois 60612 —
Sage Investigational Site Indianapolis Indiana 46202 —
Sage Investigational Site Iowa City Iowa 52242 —
Sage Investigational Site Kansas City Kansas 66103 —
Sage Investigational Site Baltimore Maryland 21287 —
Sage Investigational Site Boston Massachusetts 02215 —
Sage Investigational Site New York New York 10032 —
Sage Investigational Site Williamsville New York 14221 —
Sage Investigational Site Chapel Hill North Carolina 27599 —
Sage Investigational Site Durham North Carolina 27705 —
Sage Investigational Site Cincinnati Ohio 45219 —
Sage Investigational Site Toledo Ohio 43614 —
Sage Investigational Site Philadelphia Pennsylvania 19107 —
Sage Investigational Site Charleston South Carolina 29425 —
Sage Investigational Site Memphis Tennessee 38157 —
Sage Investigational Site Houston Texas 77030 —
Sage Investigational Site Richmond Virginia 23298 —
Sage Investigational Site Spokane Washington 99202 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 14 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05655520, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Dec 17, 2025 · Synced Nov 3, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT05655520 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →