0000000001220410
AUTHOR
Antonio Tabilio
Bone marrow evaluation according to the PVSG and WHO criteria in 90 essential thrombocythemia (ET) patients treated with PEG interferon alpha-2b. Preliminary results
Abstract Ninety ET patients diagnosed according to the PVSG criteria were enrolled in a phase II study (sponsored by the Schering-Plough Company) designed to evaluate the efficacy, safety and tolerability of a two years treatment with PEG Interferon alpha-2 b (PEG Intron). The patients, observed in 16 Italian Centres belonging to the GIMEMA Cooperative Group and judged at high risk, had been previously treated with cytoreductive (97%) and antiplatelet (91%) drugs. At the study start the patients, 60 F and 30 M, mean age 45 years, showed splenomegaly in 22% of cases. The Hematological Response (HR: PLT<500 x109/L) was observed in 64/81 (79%) and 48/55 (87%) of the patients on PEG Intr…
Evidence of jak2 val617phe positive essential thrombocythemia with splanchnic thrombosis during estroprogestinic treatment
The discovery of the Janus kinase 2 Val617Phe mutation has brought new insights into the development of myeloproliferative disorders; however, the pathogenesis of essential thrombocythemia and its related thrombotic complications has not been completely understood. Although the Janus kinase 2 Val617Phe mutation confirms the initially suspected clonal character of the disease, factors influencing clonal transformation and expansion in the bone marrow have not been fully detected. Furthermore, patients affected by essential thrombocythemia who are carriers of the Janus kinase 2 Val617Phe mutation show a higher incidence of venous thromboembolism both before, and at the time of diagnosis, comp…