The Safety and Efficacy Study of Avatrombopag Switch in TPO-RA Refractory AA

Summary

This study was a single-arm, multicenter, phase Π clinical study. Patients admitted to the enrollment unit center with a confirmed diagnosis of TDNSAA/VSAA/SAA, treated with IST (p/r-ATG+CSA) in combination with TPO-RA (including eltrombopta or hydtrombopta) for at least 3 months with no hematologic response at 6-month follow-up, and who were not suitable or unwilling to undergo hematopoietic stem cell transplantation (HSCT), were to another novel TPO-RA avatrombopta, 40-60 mg (weight \<80 kg), in addition to maintaining the original immunosuppressive therapy ( CSA or equivalent immune potency drugs), switch to another new TPO-RA avatropa 40-60 mg (40 mg daily for weight \<80 kg; 60 mg daily for weight \>80 kg) orally once daily for at least 3 months and follow up for 3 months to determine the hematologic response and to assess the safety of the drug

Timeline

Start

2022-06-01

Primary completion

2025-06-01

Completion

2026-01-01

Publications

• Results Killick SB, Bown N, Cavenagh J, Dokal I, Foukaneli T, Hill A, Hillmen P, Ireland R, Kulasekararaj A, Mufti G, Snowden JA, Samarasinghe S, Wood A, Marsh JC; British Society for Standards in Haematology. Guidelines for the diagnosis and management of adult aplastic anaemia. Br J Haematol. 2016 Jan;172(2):187-207. doi: 10.1111/bjh.13853. Epub 2015 Nov 16. No abstract available.
• Results Scheinberg P. Activity of eltrombopag in severe aplastic anemia. Hematology Am Soc Hematol Educ Program. 2018 Nov 30;2018(1):450-456. doi: 10.1182/asheducation-2018.1.450.
• Results Townsley DM, Scheinberg P, Winkler T, Desmond R, Dumitriu B, Rios O, Weinstein B, Valdez J, Lotter J, Feng X, Desierto M, Leuva H, Bevans M, Wu C, Larochelle A, Calvo KR, Dunbar CE, Young NS. Eltrombopag Added to Standard Immunosuppression for Aplastic Anemia. N Engl J Med. 2017 Apr 20;376(16):1540-1550. doi: 10.1056/NEJMoa1613878.
• Results Olnes MJ, Scheinberg P, Calvo KR, Desmond R, Tang Y, Dumitriu B, Parikh AR, Soto S, Biancotto A, Feng X, Lozier J, Wu CO, Young NS, Dunbar CE. Eltrombopag and improved hematopoiesis in refractory aplastic anemia. N Engl J Med. 2012 Jul 5;367(1):11-9. doi: 10.1056/NEJMoa1200931.
• Results Peng G, He G, Chang H, Gao S, Liu X, Chen T, Li P, Han B, Miao M, Ge Z, Ge X, Li F, Li Y, Wang S, Wang Y, Shen Y, Zhang T, Zou J, Zhang F. A multicenter phase II study on the efficacy and safety of hetrombopag in patients with severe aplastic anemia refractory to immunosuppressive therapy. Ther Adv Hematol. 2022 Mar 30;13:20406207221085197. doi: 10.1177/20406207221085197. eCollection 2022.
• Results Ise M, Iizuka H, Kamoda Y, Hirao M, Kida M, Usuki K. Romiplostim is effective for eltrombopag-refractory aplastic anemia: results of a retrospective study. Int J Hematol. 2020 Dec;112(6):787-794. doi: 10.1007/s12185-020-02971-1. Epub 2020 Sep 2.

Drugs

Indications