There is one clinical trial.
To understand if Mexiletine will restores normal colonic motility in a patient with irritable bowel syndrome - constipation (IBS-C) and a genetic mutation in SCN5A.
Effects of Mexiletine on Colonic Transit in a Patient With a Known SCN5A A997T Mutation. --- A997T ---
18] The participant will ingest a Tc-99m labeled sulfur colloid in egg to be used as a stomach marker and ln-111 chloride bound to activated charcoal enclosed in a methacrylate-coated capsule to measure colonic transit.. Inclusion Criteria: - Established IBS diagnosis with a known A997T mutation in NaV1.5T --- A997T ---
Patient is currently not on any of these medications Inclusion Criteria: - Established IBS diagnosis with a known A997T mutation in NaV1.5T --- A997T ---
Description: Colon transit will be measured using validated scintigraphy methods conducted in our Clinical Research Unit (CRU).[17, 18] The participant will ingest a Tc-99m labeled sulfur colloid in egg to be used as a stomach marker and ln-111 chloride bound to activated charcoal enclosed in a methacrylate-coated capsule to measure colonic transit.
Measure: change in the 48 hour Colon Transit Time: Baseline to 10 days