Nuedexta for the Prevention and Modification of Disease Progression in Episodic Migraine


The purpose of this study is to evaluate the efficacy and effectiveness of daily dextromethorphan/quinidine (Nuedexta) in reducing the frequency and progression of episodic migraine.

Study Start Date

August 2014

Estimated Completion Date

September 2016


  • Drug: Placebo
  • Drug: Dextromethorphan and quinidine


  • Neurology: Headache
  • Pharmacy: Other Drugs
  • Physician Assistant: Neurology

MeSH Terms

  • Dextromethorphan
  • Disease
  • Episodic Migraine
  • Migraine Disorders

Study ID

Cady, Roger, M.D. -- 14-001AV



Trial ID


Study Type


Trial Phase

Phase 2

Enrollment Quota



Cady, Roger, M.D.

Inclusion Criteria

  • male or female, in otherwise good health, 18 to 65 years of age.
  • history of frequent episodic migraine for at least 3 months as defined by 6-14 migraine days per month with or without aura according to the ICHD-3beta or a migraine treated with an ergot or triptan which resulted in relief.
  • onset of migraine before age 50.
  • able to differentiate migraine from any other headache they may experience (e.g., tension-type headache).
  • stable history of headache at least 3 months prior to screening.
  • if using daily migraine preventive medications for migraine or for other medical conditions (e.g. propranolol being used for hypertension) and has been on a stable dose and regimen for at least 2 months prior to beginning the baseline period.
  • female, of childbearing potential, and agrees to maintain true abstinence or use (or have their partner use) one of the listed methods of birth control for the duration of the study: hormonal contraceptive, intrauterine device (IUD), condoms, diaphragm, and/or vasectomy. The use of barrier contraceptive (condom or diaphragm) should always be supplemented with the use of a spermicide. Note: To be considered not of childbearing potential, subject must be 6 weeks post-surgical bilateral oophorectomy, hysterectomy, or bilateral tubal ligation, or postmenopausal for at least one year.

Exclusion Criteria

  • unable to understand the study requirements, the informed consent, or complete headache records as required per protocol.
  • pregnant, actively trying to become pregnant, or breast-feeding.
  • female of childbearing potential not using adequate contraceptive measures.
  • experienced the following migraine variants: basilar migraine, aura without headache, familial hemiplegic migraine, complicated migraine, ophthalmoplegic migraine and retinal migraine.
  • history of Medication Overuse Headache (Appendix II) in the 3 months prior to study enrollment or during the baseline phase.
  • history of acute migraine treatment greater than 14 days per month in 3 months prior to screening.
  • history of 3 or more failed preventative medications due to lack of efficacy for prophylactic treatment of migraine after an adequate therapeutic trial.
  • received onabotulinumtoxinA injections within 3 months prior to screening and/or will receive onabotulinumtoxinA injections during the study.
  • abused, in the opinion of the Investigator, any of the following drugs, currently or within the past 1 year: opioids, alcohol, barbiturates, benzodiazepine, cocaine.
  • taken, or plans to take: a monoamine oxidase inhibitor (MAOI) including herbal preparations containing St. John's wort (Hypericum perforatum) within 14 days of Visit 1, concomitant medications and/or foods containing dextromethorphan, quinidine, quinine, mefloquine, paxil, dicyclomine, digitalis, thioridazine or pimozide (medications that prolong QT interval) anytime within the 2 weeks prior to screening through 2 weeks post final study treatment.
  • history of hypersensitivity to medications containing dextromethorphan.
  • at an increased risk of developing serotonin syndrome, in the opinion of the investigator.
  • history of impaired hepatic or renal function that, in the investigator's opinion, contraindicates participation in this study.
  • unstable neurological condition or a significantly abnormal neurological examination with focal signs or signs of increased intracranial pressure.
  • cardiovascular disease (ischemic heart disease, including angina pectoris, myocardial infarction, documented silent ischemia, or with Prinzmetal's angina)
  • has symptoms of ischemic heart disease, ischemic abdominal syndromes, peripheral vascular disease or Raynaud's Syndrome.
  • ECG results outside normal limits (> 470 msec), prolonged QT interval, congenital long QT syndrome, torsades de pointes, or complete AV block.
  • has uncontrolled hypertension (? 140/90mmHg in either the systolic or diastolic measurements in 2 out of 3 BP readings at screening).
  • serious illness, or an unstable medical condition, one that could require hospitalization, or could increase the risk of adverse events, in the opinion of the investigator.
  • psychiatric condition, in the opinion of the investigator that may affect the interpretation of efficacy and safety data or contraindicates the subject's participation in the study.
  • received any investigational agents within 30 days prior to Visit 1.
  • plans to participate in another clinical study at any time during this study.




18 Years to 65 Years

Accepts Healthy Volunteers


Study Locations and Contact Information (3)

Study Location Distance Name Phone Email
Island Neurological Associates PC - Plainview, New York 32.4 miles Denise DeVito 516-822-2230
Swedish American Neuro and Headache Center - Rockford, Illinois 820.2 miles Cindy Fisher CMA 815-489-9512
Clinvest - Springfield, Missouri 1,110.3 miles Melody Knapp LPN 417-841-3672 provides clinical trial listings in an easy to view format. All clinical trial information is pulled directly from This website does not guarantee acceptance into any clinical trial, and is not responsible for adverse events that may be incurred from a clinical trial.