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Paralysis, Hyperkalemic Periodic clinical trials

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NCT ID: NCT01939561 Completed - Myotonia Congenita Clinical Trials

Lamotrigine as Treatment of Myotonia

Start date: November 2013
Phase: Phase 3
Study type: Interventional

Myotonia is a functional limiting symptom where the muscle stiffens on action leading to arrest of movement. Pharmacological treatment may make the difference between a physically restricted and a normal life. Today, patients with myotonia are treated with Mexiletine a medications resulting in adverse events up to 40 % and which very expensive and difficult to obtain. Our clinic has, forced by the above problems related to Mexiletine, treated a few patients with the drug Lamotrigine with pronounced positive effect in all. Lamotrigine belongs to the same category of drugs as Mexiletine but has fewer and milder side effects. Based on the similarities of the 2 drugs in pharmacological action and the positive experiences investigators are convinced that Lamotrigine will show a positive effect if evaluated in a broader scale. Due to the advantages of Lamotrigine compared to Mexiletine investigators find it of outmost importance for patients that this drug is assessed formally to establish Lamotrigine as a treatment choice for myotonia. Investigators believe that this will potentially make a huge difference in life quality for persons with myotonia. Investigators aim at investigating the efficacy and tolerability of Lamotrigine in the treatment of myotonia in a randomized doublet blinded placebo controlled crossover study.

NCT ID: NCT00494507 Completed - Clinical trials for Hypokalemic Periodic Paralysis

Hyper- and Hypokalemic Periodic Paralysis Study

HYP-HOP
Start date: June 2007
Phase: Phase 3
Study type: Interventional

The purpose of this study is to compare Dichlorphenamide with placebo (an inactive substance) for prevention of episodes and for improvement of strength in hyperkalemic (HYP) and hypokalemic (HOP) periodic paralysis. This study will also look at the long-term effects of Dichlorphenamide in periodic paralysis.

NCT ID: NCT00004802 Completed - Clinical trials for Paramyotonia Congenita

Phase III Randomized, Double-Blind, Placebo-Controlled Study of Dichlorphenamide for Periodic Paralyses and Associated Sodium Channel Disorders

Start date: June 1992
Phase: Phase 3
Study type: Interventional

OBJECTIVES: I. Assess the efficacy of dichlorphenamide in the treatment of episodic weakness attacks in patients with hyperkalemic periodic paralysis, paramyotonia congenita with periodic paralysis, and hypokalemic periodic paralysis.