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NCT Number: NCT05707949

Long-term Extension Study to Assess Adverse Events of Oral Atogepant Tablets in Pediatric Participants (6 to 17 Years of Age) With Migraine

A migraine is a moderate to severe headache on one side of the head. A migraine attack is a headache that may be accompanied by throbbing, nausea, vomiting, sensitivity to light and sound, or other symptoms. A number of treatments are available for adults with migraine but there are limited approved treatments available for participants less than 18 years of age. The main goal of the study is to evaluate the long-term safety and tolerability of atogepant in pediatric participants between the ages of 6 and 17 with migraine.

Atogepant is a medicine currently approved to treat adults with migraine (0 to 14 migraine days per month) and is being studied in pediatric participants between the ages of 6 and 17 with a history of migraine. This is a Phase 3, open-label study of atogepant in participants with a history of migraine. Participants must have completed participation in another study of atogepant (lead-in study). Participants must have 4 to 14 migraine days and less than 15 headache days for episodic migraine, and >= 15 headache days and >= 8 migraine days for chronic migraine in the 4-week screening electronic diary (eDiary; similar to a smart phone). Around 650 participants will be enrolled in the study at approximately 100 sites worldwide.

Atogepant is a tablet taken once a day by mouth. Participants between the ages of 12 and 17 will receive high dose atogepant for 52 Weeks. Participants between the ages of 6 and 11 will receive an atogepant dose determined in the lead-in study for 52 Weeks.

There may be a bigger responsibility for participants in this study. Participants will attend regular visits during the study at a hospital or clinic. The effects of treatment will be checked by medical assessments, blood tests, checking for side effects, and completing questionnaires.

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Key information

Conditions

Migraine Prophylaxis

Age range

6 year–17 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Uza /Id# 247885, Edegem, Antwerpen, Belgium

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Participants must be between 6 and 17 years of age (inclusive), with a history of episodic (ages 6 to 17) or chronic (ages 12 to 17) migraine.
  • The participant must have completed the lead-in Study M21-201, or the pharmacokinetic (PK) substudy in Study M21-201, or the lead-in Study M23-712.
  • Weight is >= 20 kg (44 lbs) and < 135 kg (298 lbs).
  • A history of migraine with or without aura consistent with a diagnosis according to the International Classification of Headache Disorders, 3rd Edition (ICHD-3; 2018) for at least 6 months.

Exclusion criteria

  • Have a current diagnosis of new daily persistent headache, trigeminal autonomic cephalgia (e.g., cluster headache), or painful cranial neuropathy as defined by ICHD-3 (2018).
  • Have any clinically significant hematologic, endocrine, pulmonary, renal, hepatic, gastrointestinal, cardiovascular, or neurologic disease.

Treatment and study plan

Atogepant

Drug

Oral Tablet

Other names: QULIPTA, AGN-241689

Primary outcomes

  1. Percentage of Participants with Adverse Events (AEs)

    Time frame: Up to 56 Weeks

    AE, defined as any unfavorable medical event that is temporarily related to the use of the investigational product, which does not necessarily have a causal relationship with the investigational product.

  2. Percentage of Participants with Potentially Clinically Significant Lab Values

    Time frame: Up to 52 Weeks

    Percentage of participants with abnormal change in clinical laboratory test results like hematology, chemistry and urinalysis will be assessed.

  3. Percentage of Participants with Potentially Clinically Significant Clinical 12-lead Electrocardiogram (ECG)

    Time frame: Up to 52 Weeks

    12-lead resting ECGs will be recorded. Parameters include heart rate, PR interval, QT interval, QRS duration, and QT interval corrected using Fridericia's formula (QTcF).

  4. Percentage of Participants with Potentially Clinically Significant Vital Sign Parameters

    Time frame: Up to 52 Weeks

    Number of participants with abnormal change from baseline in vital sign measurements like systolic and diastolic blood pressure will be assessed.

  5. Percentage of with Participants with Treatment-Emergent Suicidal Ideations with Intent, with or without a Plan (i.e., Type 4 or 5 on Columbia-Suicide Severity Rating Scale [C-SSRS]), or any Suicidal Behaviors

    Time frame: Up to 52 Weeks

    The C-SSRS is a clinician-rated instrument that reports the severity of both suicidal ideation and behavior. Suicidal ideation was classified on a 5-item scale: 1 (wish to be dead), 2 (nonspecific active suicidal thoughts), 3 (active suicidal ideation with any methods [not plan] without intent to act), 4 (active suicidal ideation with some intent to act, without specific plan), and 5 (active suicidal ideation with specific plan and intent). Suicidal behavior is classified on a 5-item scale: 0 (no suicidal behavior), 1 (preparatory acts or behavior), 2 (aborted attempt), 3 (interrupted attempt), and 4 (actual attempt).

  6. Percentage of Participants with Change in Menstrual Cycle (Female Participants Only)

    Time frame: Up to 52 Weeks

    Female participants who have entered menarche are to be asked for the date of the first and last day of their most recent menstrual period.

  7. Change from Baseline in Tanner Staging Score

    Time frame: Baseline (Week 0) through Week 52

    Tanner's staging is used to assess growth and pubertal development.

  8. Change from Baseline in Behavior Rating Inventory of Executive Function, 2nd Edition (BRIEF 2) questionnaire

    Time frame: Baseline (Week 0) through Week 52

    The BRIEF 2 is an 86-item questionnaire assessing executive function. It consists of 2 indexes, Behavioral Regulation and Metacognition, which are then used to calculate an overall composite score. Higher scores indicate more executive difficulties

Sponsors and collaborators

Lead sponsor

AbbVie

Industry

Registry information

Official study title

A Multicenter, Open-label, Extension Study to Evaluate the Long-term Safety and Tolerability of Atogepant in Pediatric Subjects 6 to 17 Years of Age With Migraine

Acronym: Kaleidoscope

Important dates

Study start
2023
Primary completion
2032
Study completion
2032
First posted
Feb 1, 2023
Registry last updated
Aug 11, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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