Senicapoc and Dehydrated Stomatocytosis

Summary

Dehydrated stomatocytosis is a genetic disorder characterized by chronic hemolysis, variable anemia and erythrocyte dehydration. Causative mutations have been identified in either the Gardos (KCNN4) channel or the mechanosensitive channel PIEZO1. Senicapoc is a selective blocker of the Gardos channel that has been extensively studied in sickle cell disease and shown to be safe with limited side-effects. However, senicapoc did not meet the designated clinical endpoints in a pivotal phase 3 trial. The present study is an explanatory, proof-of-concept study of Senicapoc administered once daily in patients with familial dehydrated stomatocytosis caused by autosomal dominant V282 mutations in the Gardos (KCNN4) channel.

Timeline

Start

2021-04-15

Primary completion

2024-02-01

Completion

2024-02-01

Publications

• Background Andolfo I, Russo R, Manna F, Shmukler BE, Gambale A, Vitiello G, De Rosa G, Brugnara C, Alper SL, Snyder LM, Iolascon A. Novel Gardos channel mutations linked to dehydrated hereditary stomatocytosis (xerocytosis). Am J Hematol. 2015 Oct;90(10):921-6. doi: 10.1002/ajh.24117.
• Background Snyder LM, Sauberman N, Condara H, Dolan J, Jacobs J, Szymanski I, Fortier NL. Red cell membrane response to hydrogen peroxide-sensitivity in hereditary xerocytosis and in other abnormal red cells. Br J Haematol. 1981 Jul;48(3):435-44. doi: 10.1111/j.1365-2141.1981.tb02735.x.
• Background Sauberman N, Fairbanks G, Lutz HU, Fortier NL, Snyder LM. Altered red blood cell surface area in hereditary xerocytosis. Clin Chim Acta. 1981 Aug 10;114(2-3):149-61. doi: 10.1016/0009-8981(81)90388-0.

Drugs

Indications