Study of Ranolazine in Myotonia Congenita, Paramyotonia Congenita and Myotonic Dystrophy Type 1

Completed · Phase 1

Conditions studied: Myotonia Congenita, Paramyotonia Congenita, Myotonic Dystrophy 1

In brief

The purpose of this study is to gather preliminary data to determine if ranolazine is a safe and effective treatment for the symptoms of myotonia congenital, paramyotonia congenita, and myotonic dystrophy type 1. The duration of the study is 5 weeks.

Key facts

Study ID

NCT02251457

Run by

Ohio State University

People needed

35

Starts

2014-08-01

Expected to finish

2017-12-18

Last updated by the study team

2019-03-05

Who can join

Age: 18 and older, up to 100. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Diagnosis of myotonia congenital, paramyotonia congenital or Myotonic Dystrophy Type 1 established by genetic testing in the subject or in a first-degree relative.
• Clinically evident myotonia

You may not qualify if…

• Contraindications to ranolazine use:
• for fungus infection: ketoconazole (Nizoral), itraconazole (Sporanox, Onmel)
• for infection: clarithromycin (Biaxin)
• for depression: nefazodone
• for HIV: nelfinavir (Viracept), ritonavir (Norvir), lopinavir and ritonavir (Kaletra), indinavir (Crixivan), saquinavir (Invirase).
• for tuberculosis (TB): rifampin (Rifadin), rifabutin (Mycobutin), rifapentine (Priftin)
• for seizures: phenobarbital, phenytoin (Phenytek, Dilantin, Dilantin-125), carbamazepine (Tegretol)
• the herbal supplement St. John's wort
• you have scarring (cirrhosis) of your liver
• Concurrent use of mexiletine, lacosamide, acetazolamide, phenytoin, quinine, procainamide, Saint John wort or tocainide. Patients who were previously treated with these medications may participate. They need to be off of the medication for at least a week prior to enrollment.
• QTc >470 ms for men and >480 ms for women.
• Women who are pregnant or breastfeeding
• Direct family history of sudden cardiac death

Where it is running

• The Ohio State University Wexner Medical Center — Columbus, Ohio, United States

Full record on ClinicalTrials.gov

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