Ibrutinib Efficacy in First-Line Therapy of High-Risk Patients Vs. Second- and Third-Line Therapies of Resistant Chronic Lymphocytic Leukemia

AUTOIMMUNE THROMBOCYTOPENIA

NV Kurkina1,2, EA Repina1, PV Volkova1, AA Repin1

1 NP Ogarev National Research Mordovia State University, 68 Bolshevistskaya ul., Saransk, Russian Federation, 430005

2 Republican Clinical Hospital No. 4, 32 Ul’yanova ul., Saransk, Russian Federation, 430032

For correspondence: Nadezhda Viktorovna Kurkina, MD, PhD, 32 Ul’yanova ul., Saransk, Russian Federation, 430032; Tel.: +7(927)172-48-63; e-mail: nadya.kurckina@yandex.ru

For citation: Kurkina NV, Repina EA, Volkova PV, Repin AA. Ibrutinib Efficacy in First-Line Therapy of High-Risk Patients Vs. Second- and Third-Line Therapies of Resistant Chronic Lymphocytic Leukemia. Clinical oncohematology. 2023;16(2):209–12. (In Russ).

DOI: 10.21320/2500-2139-2023-16-2-209-212

ABSTRACT

Risk stratification appears to be the most valid criterion in decision-making regarding optimal specific therapy in chronic lymphocytic leukemia (CLL). The CLL International Prognostic Index takes account of unfavorable cytogenetic abnormalities (del(17p)/del(11q) and/or TP53 gene mutations) as well as the mutation status of immunoglobulin heavy chain variable (IGHV) region genes. Unmutated V(H)-status is commonly associated with such prognostically unfavorable genetic markers as del(17p)/del(11q), trisomy 12, and TP53 mutation. The combination of unmutated V(H)-status with unfavorable karyotype abnormalities (del(17p)/del(11q)) negatively affects the prognosis and overall survival rate. Besides, in high-risk CLL, the efficacy of therapy is rather low, and the development of refractoriness is possible. Targeted therapy (Bruton tyrosine kinase inhibitors) both in first line and in resistant CLL considerably increases the probability of achieving long-term remission. The present paper provides the comparative analysis of clinical and hematological efficacy and tolerability of ibrutinib in first-line CLL therapy of high-risk patients as well as second- and third-line therapies of resistant CLL. Ibrutinib shows high efficacy and low toxicity. First-line ibrutinib treatment results in a faster response and effectively reduces the probability of CLL progression. Second- and third-line ibrutinib treatment allows to overcome CLL resistance without impairing patients’ quality of life.

Keywords: chronic lymphocytic leukemia, high-risk group, deletion del(17p), TP53 gene mutation, ibrutinib, efficacy, toxicity.

Received: October 9, 2022

Accepted: February 28, 2023

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