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Histamine 3 Receptor Antagonist

Higher dose pitolisant for Myotonic Dystrophy

Phase 2
Waitlist Available
Research Sponsored by Harmony Biosciences, LLC
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Washout of cannabidiol and tetrahydrocannabinol for 28 days prior to randomization and agree to remain off for the duration of the Double-Blind Treatment Phase of the study.
Diagnosis of DM1 confirmed by genetic testing (CTG repeat of ≥100) from the Screening Visit
Timeline
Screening 3 weeks
Treatment Varies
Follow Up baseline to week 11
Awards & highlights

Study Summary

This trial is testing a new drug to see if it's safe and effective in treating excessive daytime sleepiness in patients with Myotonic Dystrophy Type 1.

Who is the study for?
Adults aged 18-65 with genetically confirmed Myotonic Dystrophy Type 1 (DM1) and moderate to severe excessive daytime sleepiness can join. They must be able to walk, understand the study, and comply with its requirements. Women of childbearing age need a negative pregnancy test and must use non-hormonal contraception.Check my eligibility
What is being tested?
The trial is testing Pitolisant's ability to reduce excessive daytime sleepiness in DM1 patients against a placebo. It also looks at how Pitolisant affects fatigue, cognitive function, and overall disease burden over time.See study design
What are the potential side effects?
Pitolisant may cause headaches, insomnia, nausea, anxiety or irritability. Since it interacts with brain chemicals that regulate wakefulness and alertness, some people might experience disturbances in these areas.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I haven't used CBD or THC for 28 days and won't use them during the study.
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My genetic test shows I have DM1 with a CTG repeat of 100 or more.
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I am between 18 and 65 years old.
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I haven't changed my medication dose for 2 months and can stop certain medications if needed.
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I can walk on my own, with or without help from a device.
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I have been genetically confirmed to have DM1 with a CTG repeat of 100 or more.
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I haven't changed my medication dose for 2 months, or I can stop taking it for its washout period before the study starts.
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I can walk on my own, with or without help from a device.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~baseline to week 11
This trial's timeline: 3 weeks for screening, Varies for treatment, and baseline to week 11 for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Secondary outcome measures
Attention
Myotonic Dystrophy
Fatigue
+3 more
Other outcome measures
Excessive Daytime Sleepiness

Trial Design

3Treatment groups
Active Control
Placebo Group
Group I: Higher dose pitolisantActive Control1 Intervention
Double-Blind Treatment Phase: Week 1: 8.9 mg pitolisant administered once daily in the morning; Week 2: 17.8 mg pitolisant administered once daily in the morning; Weeks 3 through 11: 35.6 mg pitolisant administered once daily in the morning.
Group II: Lower dose pitolisantActive Control1 Intervention
Double-Blind Treatment Phase: Week 1: 4.45 mg pitolisant administered once daily in the morning; Week 2: 8.9 mg pitolisant administered once daily in the morning; Weeks 3 through 11: 17.8 mg pitolisant administered once daily in the morning
Group III: PlaceboPlacebo Group1 Intervention
Double-Blind Treatment Phase: Week 1: Matching placebo tablets; Week 2: Matching placebo tablets; Weeks 3 through 11: Matching placebo tablets

Find a Location

Who is running the clinical trial?

Harmony Biosciences, LLCLead Sponsor
6 Previous Clinical Trials
1,754 Total Patients Enrolled

Media Library

Pitolisant Oral Tablet (Histamine 3 Receptor Antagonist) Clinical Trial Eligibility Overview. Trial Name: NCT04886518 — Phase 2
Myotonic Dystrophy Research Study Groups: Placebo, Higher dose pitolisant, Lower dose pitolisant
Myotonic Dystrophy Clinical Trial 2023: Pitolisant Oral Tablet Highlights & Side Effects. Trial Name: NCT04886518 — Phase 2
Pitolisant Oral Tablet (Histamine 3 Receptor Antagonist) 2023 Treatment Timeline for Medical Study. Trial Name: NCT04886518 — Phase 2
Myotonic Dystrophy Patient Testimony for trial: Trial Name: NCT04886518 — Phase 2

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

What indications are typically seen for the administration of Low dose pitolisant?

"Low dose pitolisant can help address the issues of sleeping too much during the day, narcolepsy with cataplexy, and general narcolepsy."

Answered by AI

What safety considerations should be taken into account when administering low dose pitolisant?

"There is limited evidence to corroborate the safety of Low dose pitolisant, so it was given a rating of 2 on our scale. This assessment should be taken with caution since no studies have been conducted to assess its efficacy."

Answered by AI

Am I eligible to join in the research of this trial?

"This clinical trial is recruiting 78 individuals aged 18 to 65 with acute excessive daytime sleepiness. The requirements are: providing voluntary, written informed consent; a confirmed diagnosis of DM1 through genetic testing (CTG repeat ≥100); being on a stable dose for at least 2 months prior or 5 half-lives washout before randomization; cannabidiol and tetrahydrocannabinol must be washed out for 28 days prior to randomisation; female patients must have negative pregnancy tests upon screening and baseline visits in addition to using effective birth control until 21 days after the last study drug administration; able to understand and comply with the protocol"

Answered by AI

What is the maximum capacity of participants for this trial?

"For this research endeavour, a total of 78 volunteers that meet the established criteria are required. These individuals may join from either Wake Forest in Winston-Salem NC or University of Kansas Medical Centre situated in Kansas City KS."

Answered by AI

Does this medical trial represent a groundbreaking advancement in the field?

"At present, Harmony Biosciences, LLC is sponsoring two active trials of Low dose pitolisant across 71 cities and 2 countries. The initial trial commenced in 2021 with 78 participants and successfully passed Phase 2 drug approval. Since its initiation there have been 82 separate studies conducted on this medication."

Answered by AI

How many healthcare facilities are conducting this experiment?

"This medical trial is being conducted at various locations, such as Wake Forest in Winston-Salem, North carolina, UCI Center for Clinical Research in Irvine California and University of Kansas Medical Centre in Kansas City. There are an additional 19 sites taking part."

Answered by AI

What other exploratory studies have been conducted regarding Low dose pitolisant?

"Pitolisant, a low dose drug, was first evaluated in 2021 at Ohio Sleep Medicine Institute. A total of 82 studies have been conducted and there are currently 2 trials actively seeking patients, with many being held in Winston-Salem, North carolina."

Answered by AI

Is the eligibility criteria of this research study inclusive to those aged above forty-five?

"In accordance with the protocol, only people aged 18 to 65 are suitable for enrollment in this trial."

Answered by AI

Is this medical research currently enrolling participants?

"Affirmative. According to the records available on clinicaltrials.gov, this medical trial which was first published on June 28th 2021 is actively looking for potential participants. The study requires 78 people from 19 distinct sites across the globe."

Answered by AI

Who else is applying?

What state do they live in?
Washington
California
What site did they apply to?
University of California, Irvine
University of Washington
What portion of applicants met pre-screening criteria?
Met criteria
How many prior treatments have patients received?
0

Why did patients apply to this trial?

I hope this clinical trial can address my physical condition.
PatientReceived 2+ prior treatments
~8 spots leftby Apr 2025