The Preventive Treatment of Migraine With Low-Dose Naltrexone and Acetaminophen Combination

Exclusion Criteria

• •1. Usage of acetaminophen and non-steroidal anti-inflammatory drugs (NSAIDs) ≥15 days/month, or ergotamine and triptans \>10 days/month, or opioids and barbiturates \>2 days/month in the 3 months prior to Visit 1 or during the Baseline Period.
• •2. Tension-type-like, and/or migraine-like headache on ≥15 days per month in the 3 months prior to Visit 1 or during the Baseline Period. Diagnosis of chronic migraine, cluster headache or neurologically complicated migraine (hemiplegic, basilar, retinal, ophthalmoplegic migraine).
• •3. Regular use of the following medications for any reason: acetaminophen, non-steroidal anti-inflammatory drugs (NSAIDs), antipsychotic drugs, monoamine oxidase inhibitors, benzodiazepines, sleep medications, muscle relaxants, anti-emetic medications, blood thinning medications (e.g., warfarin or heparin), cannabinoids, or botulinum toxin to head and neck regions. Low-dose aspirin for cardiovascular disease prophylaxis is permitted.
• •4. Confounding painful conditions, (e.g. fibromyalgia, chronic low back pain, complex regional pain syndrome, etc.).
• •5. Diagnosis of any concurrent medical or psychiatric condition; this includes, chronic unstable debilitating diseases such as Parkinson's disease, multiple sclerosis, cancer, significant renal impairment, significant hepatic impairment, etc.
• •6. The patient has a history or diagnosis of moderate-to-severe hepatic or renal impairment (\>2 × the upper limit of normal \[ULN\] for alanine transaminase or aspartate transaminase. ≥1.5 × ULN for alkaline Phosphatase, bilirubin, BUN, or creatinine). (Patients with elevated bilirubin level due to Gilbert's syndrome are allowed).
• •7. The patient has a history within the previous 5 years of abuse of any drug, prescription, illicit, or alcohol.
• •8. The Female patient is pregnant, actively trying to become pregnant, or breast-feeding. The Male patient is not practicing 2 different methods of birth control with their partner during the study, and for 28 days after the investigational drug last dose or will not remain abstinent during the study, and for 28 days after the last dose.
• •9. The patient has known-allergy to any of the components of the investigational drug.
• •10. Participation in another study with an investigational drug within 30 days before Visit 1 or during the study.
• •11. Use of emergency care treatment more than 3 times in the previous 6 months.
• •12. The patient is in the opinion of the investigator, is unsuitable to participate in this study for any other reason.