Single-Site Study of Naltrexone/Acetaminophen for the Acute Treatment of Migraine: A Phase 2 Randomized Trial

NCT ID: NCT05685225

Last Updated: 2025-12-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Clinical Phase

PHASE2

Study Classification

INTERVENTIONAL

Study Start Date

2025-01-31

Study Completion Date

2025-12-02

Brief Summary

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* This two-stage clinical trial will assess a novel combination therapy for acute migraine. In Stage 1 (factorial), participants will receive the combination, each individual component, or placebo. In Stage 2 (dose-finding), they will test three doses of the combination. Before both stages, participants will complete a run-in period, documenting a migraine attack without study medication. They will then treat one migraine attack in each stage.
* 4 visits
* Requirements: Migraine Diagnosis. BMI below 34. Read, write, and speak English. No opioids, marijuana, benzodiazepines, or excessive alcohol.

Detailed Description

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This study evaluating naltrexone-acetaminophen in the acute treatment of migraine.

Conditions

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Migraine

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Randomized, Double-Blind, Placebo-Controlled, Parallel-Group
Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Stage 1: Naltrexone/Acetaminophen

One dose for a Qualifying Migraine Attack

Group Type EXPERIMENTAL

Stage 1: Naltrexone/Acetaminophen

Intervention Type DRUG

Combination

Stage 1: Naltrexone

One dose for a Qualifying Migraine Attack

Group Type ACTIVE_COMPARATOR

Stage 1: Naltrexone

Intervention Type DRUG

Naltrexone alone

Satge 1: Acetaminophen

One dose for a Qualifying Migraine Attack

Group Type ACTIVE_COMPARATOR

Stage 1: Acetaminophen

Intervention Type DRUG

Acetaminophen alone

Stage 1: Placebo

One dose for a Qualifying Migraine Attack

Group Type PLACEBO_COMPARATOR

Stage1: Placebo

Intervention Type DRUG

Matching placebo

Stage 2: Naltrexone/Acetaminophen-high dose

One dose for a qualifying migraine attack

Group Type EXPERIMENTAL

Stage 2: Naltrxone/Acetaminophen high dose

Intervention Type DRUG

Combination high dose

Stage 2: Naltrexone/Acetaminophen-medium dose

One dose for a qualifying migraine attack

Group Type EXPERIMENTAL

Stage 2: Naltrexone/Acetaminophen medium dose

Intervention Type DRUG

Combination medium dose

Stage 2: Naltrexone/Acetaminophen-low dose

One dose for a qualifying migraine attack

Group Type EXPERIMENTAL

Stage 2: Naltrxone/Acetaminophen low dose

Intervention Type DRUG

Combination low dose

Stage 2: Placebo

One dose for a qualifying migraine attack

Group Type PLACEBO_COMPARATOR

Stage 2: Placebo

Intervention Type DRUG

Matching Placebo

Interventions

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Stage 1: Naltrexone/Acetaminophen

Combination

Intervention Type DRUG

Stage 1: Naltrexone

Naltrexone alone

Intervention Type DRUG

Stage 1: Acetaminophen

Acetaminophen alone

Intervention Type DRUG

Stage1: Placebo

Matching placebo

Intervention Type DRUG

Stage 2: Naltrxone/Acetaminophen high dose

Combination high dose

Intervention Type DRUG

Stage 2: Naltrexone/Acetaminophen medium dose

Combination medium dose

Intervention Type DRUG

Stage 2: Naltrxone/Acetaminophen low dose

Combination low dose

Intervention Type DRUG

Stage 2: Placebo

Matching Placebo

Intervention Type DRUG

Other Intervention Names

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ALLOD-2 ALLOD-2 ALLOD-2 ALLOD-2

Eligibility Criteria

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Inclusion Criteria

1. Ages 18 to 75 years, inclusive.
2. At least 1-year of history of migraine with or without aura as defined by the International Classification of Headache Disorders 3rd edition 17 (ICHD-3).
3. Migraine onset before age 50 years.
4. Read, write, and speak English
5. BMI Higher than 20 and Lower than 34
6. The female subject who is premenopausal or postmenopausal less than one year or have not had surgical sterilization (i.e., tubal ligation, partial or complete hysterectomy) must have a negative urine pregnancy test, be non-lactating, and commit to using two methods of adequate and reliable contraception throughout the study and for 28 days after taking the last dose of the study medication (e.g., barrier with an additional spermicidal, intra- uterine device, hormonal contraception). Male subjects must be surgically sterile (the procedure occurred greater than 6 months before the Screening Visit) or commit to using two different birth control methods during the study and for 28 days after the last dose of the study medication.

Exclusion Criteria

1. Pregnant or nursing women or those planning a pregnancy.
2. Used opioids (including methadone and buprenorphine), barbiturate-containing medications, muscle relaxants, or benzodiazepines within 3 months prior to screening.
3. Used any recreational drugs in the past 3 months.
4. Use of medications to treat headaches more than 10 days per month in the past 3 months or use of any pain medication for other pain syndromes for more than 10 days per month.
5. Uncontrolled cardiovascular or cerebrovascular disease or a history of heart failure, atrial fibrillation, or myocardial infarction.
6. Uncontrolled hypertension (systolic/diastolic blood pressure ˃ 140/90 mmHg) or diabetes.
7. Immediate family members or same household members participating in the study.
8. Site personnel, their friends, and family.
9. Abnormal laboratory or ECG results.

1. Aspartate transaminase (AST/SGOT), alanine transaminase (ALT/SGPT), or alkaline Phosphatase ≥ 1.5 x Upper Limit of Normal (ULN). creatinine ≥ 1.5 x ULN.
2. BBB or intraventricular conduction defect with a QRS duration ≥ 150 msec. ST-T wave abnormalities.
3. Hemoglobin \< 10 g/dL
4. Neutrophil count ≤ 1000/μL
5. Cholesterol ≥ 300 mg/dL
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Allodynic Therapeutics, Inc

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Annette C Toledano, MD

Role: STUDY_DIRECTOR

Allodynic Therapeutics, Inc

Natalia Belikova, MD PhD

Role: PRINCIPAL_INVESTIGATOR

Keystone Clinical Research

Locations

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Keystone Clinical Research

North Miami, Florida, United States

Site Status

Countries

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United States

References

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Other Identifiers

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AT-06

Identifier Type: -

Identifier Source: org_study_id

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