The following information may help to address your question:
Yes. The U.S. National Institutes of Health, through the National Library of Medicine, developed ClinicalTrials.gov to provide patients, family members, and members of the public with current information on clinical research studies. ClinicalTrials.gov lists trials that are studying or have studied myotonic dystrophy. Click on the link above to view a list of these studies. After you click on a study, review its 'eligibility' criteria to determine its appropriateness. Use the study’s contact information to learn more. Check this site often for regular updates.
You can also contact the Patient Recruitment and Public Liaison (PRPL) Office at the National Institutes of Health (NIH) at 1-800-411-1222 to speak with a specialist, who can help you determine if your sister is eligible for any clinical trials.
You can find helpful general information on clinical trials at the following ClinicalTrials.gov Web page.
Resources on many charitable or special-fare flights to research and treatment sites and low-cost hospitality accommodations for outpatients and family members, as well as ambulance services, are listed on the Web site of the Office of Rare Diseases (ORD), part of the National Institutes of Health.