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Terminated Early Phase 1 Interventional

The Effects of Tasimelteon in Participants With REM Behavior Disorder (RBD)

ClinicalTrials.gov ID: NCT05922995

Public ClinicalTrials.gov record NCT05922995. 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 Sep 5, 2026, 7:22 PM EDT

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

Official title

A Single Center, Open Label Prospective Observational Pilot Study to Evaluate the Effects of Tasimelteon in Participants With REM Behavior Disorder (RBD)

Brief summary

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

To assess the effects of a daily single oral dose of 20 mg tasimelteon compared to baseline on events of dream enactment on patients with REM Behavior Disorder, as measured by a daily log. To assess the effects of 20 mg tasimelteon compared to baseline on insomnia= symptoms, as measured by validated questionnaires (Insomnia Severity Index \[ISI\], Pittsburgh Sleep Quality Inventory \[PSQI\], Epworth Sleepiness Scale \[ESS\], Clinical Global Impression of Change Scale (CGI-C), Patient Global Impression of Change Scale (PGI-C)) as well as rest/activity pattern from actigraphy. * To assess the effects of 20 mg tasimelteon on patients who have a reduced or aberrant melatonin secretion compared to normal secretion by measuring salivary DLMO at baseline and correlating with the degree of change in RBD symptoms by end of the study. * To assess for any role a patient's unique genome may play in their response to tasimelteon; obtained via whole genome sequencing. * To assess the safety and tolerability of a daily single oral dose of 20 mg tasimelteon.

Study identification

NCT ID
NCT05922995
Recruitment status
Terminated
Study type
Interventional
Phase
Early Phase 1
Enrollment
20 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years to 85 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
Sep 29, 2023
Primary completion
Nov 30, 2023
Completion
Nov 30, 2023
Last update posted
Oct 8, 2025

2023

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Brigham and Women's Hospital Boston Massachusetts 02115

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

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05922995, 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 Oct 8, 2025 · Synced Sep 5, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT05922995 live on ClinicalTrials.gov.

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