A Study to Evaluate the Clinical Efficacy and Safety of Subcutaneously Administered C1-esterase Inhibitor in the Prevention of Hereditary Angioedema

Summary

The aim of this study is to assess the efficacy of C1-esterase inhibitor in preventing hereditary angioedema attacks when it is administered under the skin of subjects with hereditary angioedema. The safety of C1-esterase inhibitor will also be assessed. Each subject will enter a run-in period of up to 8-weeks. Subjects who complete the run-in period and who are eligible will then enter the treatment phase which comprises two sequential treatment periods. In the treatment phase, subjects will be randomized to one of four arms consisting of treatment with low- or higher-volume C1-esterase inhibitor in one treatment period and treatment with low- or higher-volume placebo in the other treatment period. The study will measure the number of hereditary angioedema attacks that subjects experience while receiving each treatment.

Timeline

Start

2014-01

Primary completion

2015-10

Completion

2015-10

Publications

• Results Longhurst H, Cicardi M, Craig T, Bork K, Grattan C, Baker J, Li HH, Reshef A, Bonner J, Bernstein JA, Anderson J, Lumry WR, Farkas H, Katelaris CH, Sussman GL, Jacobs J, Riedl M, Manning ME, Hebert J, Keith PK, Kivity S, Neri S, Levy DS, Baeza ML, Nathan R, Schwartz LB, Caballero T, Yang W, Crisan I, Hernandez MD, Hussain I, Tarzi M, Ritchie B, Kralickova P, Guilarte M, Rehman SM, Banerji A, Gower RG, Bensen-Kennedy D, Edelman J, Feuersenger H, Lawo JP, Machnig T, Pawaskar D, Pragst I, Zuraw BL; COMPACT Investigators. Prevention of Hereditary Angioedema Attacks with a Subcutaneous C1 Inhibitor. N Engl J Med. 2017 Mar 23;376(12):1131-1140. doi: 10.1056/NEJMoa1613627.
• Beard N, Frese M, Smertina E, Mere P, Katelaris C, Mills K. Interventions for the long-term prevention of hereditary angioedema attacks. Cochrane Database Syst Rev. 2022 Nov 3;11(11):CD013403. doi: 10.1002/14651858.CD013403.pub2.
• Li HH, Zuraw B, Longhurst HJ, Cicardi M, Bork K, Baker J, Lumry W, Bernstein J, Manning M, Levy D, Riedl MA, Feuersenger H, Prusty S, Pragst I, Machnig T, Craig T; COMPACT Investigators. Subcutaneous C1 inhibitor for prevention of attacks of hereditary angioedema: additional outcomes and subgroup analysis of a placebo-controlled randomized study. Allergy Asthma Clin Immunol. 2019 Aug 28;15:49. doi: 10.1186/s13223-019-0362-1. eCollection 2019.

Drugs

Indications