scholarly journals PCN57 Cost Effectiveness of Nilotinib Versus Imatinib as First Line Treatment for Newly Diagnosed Hong Kong (HK) Patients With Chronic Phase, Philadelphia Chromosome-Positive (PH+) Chronic Myeloid Leukemia in the Chronic Phase (CML-CP) in Hong Kong

2012 ◽  
Vol 15 (4) ◽  
pp. A217-A218
Author(s):  
V. Tse ◽  
H. Liu ◽  
M. Botteman ◽  
S. Mcghee ◽  
V.W. Lee ◽  
...  
2018 ◽  
Vol 36 (3) ◽  
pp. 231-237 ◽  
Author(s):  
Jorge E. Cortes ◽  
Carlo Gambacorti-Passerini ◽  
Michael W. Deininger ◽  
Michael J. Mauro ◽  
Charles Chuah ◽  
...  

Purpose Bosutinib is a potent dual SRC/ABL kinase inhibitor approved for adults with Philadelphia chromosome–positive chronic myeloid leukemia (CML) resistant and /or intolerant to prior therapy. We assessed the efficacy and safety of bosutinib versus imatinib for first-line treatment of chronic-phase CML. Methods In this ongoing, multinational, phase III study, 536 patients with newly diagnosed chronic-phase CML were randomly assigned 1:1 to receive 400 mg of bosutinib once daily (n = 268) or imatinib (n = 268). Per protocol, efficacy was assessed in patients who were Philadelphia chromosome–positive with typical (e13a2/e14a2) transcripts (bosutinib, n = 246; imatinib, n = 241). Patients with Philadelphia chromosome–negative–/ BCR-ABL1–positive status and those with unknown Philadelphia chromosome status and/or atypical BCR-ABL1 transcript type were excluded from this population. Results The major molecular response (MMR) rate at 12 months (primary end point) was significantly higher with bosutinib versus imatinib (47.2% v 36.9%, respectively; P = .02), as was complete cytogenetic response (CCyR) rate by 12 months (77.2% v 66.4%, respectively; P = .0075). Cumulative incidence was favorable with bosutinib (MMR: hazard ratio, 1.34; P = .0173; CCyR: hazard ratio, 1.38; P < .001), with earlier response times. Four patients (1.6%) receiving bosutinib and six patients (2.5%) receiving imatinib experienced disease progression to accelerated/blast phase. Among treated patients, 22.0% of patients receiving bosutinib and 26.8% of patients receiving imatinib discontinued treatment, most commonly for drug-related toxicity (12.7% and 8.7%, respectively). Grade ≥ 3 diarrhea (7.8% v 0.8%) and increased ALT (19.0% v 1.5%) and AST (9.7% v 1.9%) levels were more common with bosutinib. Cardiac and vascular toxicities were uncommon. Conclusion Patients who received bosutinib had significantly higher rates of MMR and CCyR and achieved responses faster than those who received imatinib. Consistent with the known safety profile, GI events and transaminase elevations were more common with bosutinib. Results indicate bosutinib may be an effective first-line treatment for chronic-phase CML.


Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 3616-3616
Author(s):  
Jie Jin ◽  
Li Meng ◽  
Wenjuan Yu ◽  
Peng Liu ◽  
Xin Du ◽  
...  

Abstract Purpose: Generic dasatinib, a second-generation tyrosine kinase inhibitor (TKI), was approved as a second-line treatment for chronic myeloid leukemia (CML) patients in chronic phase (CP) in china. We initiated a prospective, multi-center and single-arm clinical trial (NCT04925141) from May 2016 to October 2018 to evaluate efficacy and safety of generic dasatinib as first-line treatment in China. The primary endpoint was achieved, here we reported the 2 years follow-up results to see its long-term clinical benefit in Chinese patients. Methods:The study included the newly diagnosed CML-CP patients who was diagnosed by the presence of Philadelphia (Ph) chromosome and/or presence of BCR-ABL fusion gene. Key inclusion criteria were as follows: 1) Age ≥ 18 years; 2) The CML subjects in chronic phase with the Ph+ definitive diagnosis were within 6 months before the onset of administration of the study drug; 3) The ECOG performance grades of 0-2; 4) Sufficient main organ functions. All newly diagnosed patients were given 100mg/d (initial dose) of the generic dasatinib. The primary endpoint was molecular major response (MMR) calculated based on the BCR-ABL1 ≤ 0.1% at the 12th month. Secondary endpoints were proportion of subjects who achieved and maintained MMR at 3, 6, and 18 months; Cumulative MMR rates at 6, 12, and 24 months were determined. All patients were followed up through the hospital outpatient departments at second, fourth and eighth weeks, and third, sixth, ninth, twelfth, eighteenth, and twenty-fourth months. The follow-up ended on December 6, 2019. The SAS 9.2 software was utilized for all statistical analyses in this study, and the two-sided test was performed to see variances. Results: A total of 59 patients were included in this trail, with median age of 44 (19 - 70), and 7% of the subjects were at high risk based on the Sokal index for the disease prognosis. The primary endpoint MMR rate at the 12th month was 80.8% which had been published. At 12 months, the cumulative response rate (CCyR) was 85.5% (47/55) and the cumulative MMR was 76.4% (42/55). Here we are reporting the 2 years follow ups. At 24 months, the complete hematological response (CHR) was 88.4%, the cumulative MMR rate was 73.7%, the cumulative MR4.0 rate was 63.6%, the cumulative MR4.5 rate was 58.2%, and the cumulative complete molecular response (CMR) rate was 58.2%. The most common adverse events (AEs) was thrombocytopenia (42.4%) in hematology and pleural effusion (20.3%) in non-hematology, only 11.9% and 1.7% of whom were grade III~IV respectively. Conclusion: This was the first report on domestic dasatinib as the first-line treatment for CML-CP patients received a clinical benefit with 24 months in China. Safety was similar with that of the original study data. Figure 1 Figure 1. Disclosures No relevant conflicts of interest to declare.


Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 3314-3314 ◽  
Author(s):  
Fábio Mataveli ◽  
Alessandra Calabró ◽  
Wellington Mendes ◽  
Denizar Vianna ◽  
Pedro Dorlhiac-Llacer ◽  
...  

Abstract The 60-month follow-up data for patients randomized to imatinib in IRIS demonstrated significant clinical improvements in survival rates and QALYs gained (17,09 years;13,58 QALYs) in patients newly diagnosed with chronic myeloid leukemia (CML) and treated with imatinib in comparison to patients under interferon-alpha (INF-α) (9,10 years;6,31 QALYS) as first line therapy. Although reimbursed as second line therapy for chronic phase CML patients who did not respond to INF-α, imatinib was not considered for public reimbursement as first line treatment in Brazil based solely on drug costs. An economic evaluation of imatinib as first line treatment versus INF-α was performed under the Brazilian Public Heathcare System perspective, according to the long-term follow-up data from IRIS, literature recommendations and prior health technology assessment from the National Institute for Clinical Excellence (NICE) to consider long term follow-up survival and adverse events costs. This study was aimed to evaluate the cost-effectiveness of imatinib compared with IFN-α for first-line treatment of chronic myeloid leukemia under the Brazilian public healthcare system perspective. For the economic model, a base case of 100 patients for each treatment option was constructed focused on drug costs and adverse events. Drug costs were estimated based on the Brazilian public healthcare reimbursement payment (APAC-SUS) for chronic phase CML treatment. Febrile neutropenia (grade III and IV), depression, nausea and abnormal liver-function results were considered as adverse events. Clinical guidelines and protocols from two public hematology Brazilian centers, Fundação Pró-Sangue FM-USP and Instituto Nacional do Cancer, were used to estimate adverse events treatment costs. Adverse events frequency for all grades was based on data published by NICE and the Agency for Health Care Research and Quality. Due to the high crossover rate from INF-α to Imatinib group observed in the IRIS study (90% from INF-α to imatinib within a year of study entry) the estimated life time survival for INF-α treatment group was based on the European Study Group on Interferon in Chronic Myeloid Leukemia. Utilities values from the IRIS study were used for both groups. Annual discount rates were of 6% for costs and 1.5% for QALYs. The annual average costs for the treatment of adverse effects in the INF-α were 1.83 higher than the imatinib group. Adverse events lifetime costs for INF-α were 24% higher than imatinib, even tough imatinib granted a projected 6.3 years survival advantage over INF-α. The resulting incremental cost-effectiveness ratio (ICER) of imatinib, compared with IFNα, considering adverse events was US$ 18,637 per QALY gained. Assuming a conservative cost-effectiveness threshold of less than US$ 25,500, which is three times the GDP per capita in Brazil (US$ 8,500 in 2005), the ICER for imatinib compared with INF-α falls within the range considered by the World Heath Organization as a cost-effective fist line treatment for patients newly diagnosed with CML.


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