Safety and Efficacy of Imatinib Versus Interferon-α Plus Cytarabine in Patients With Newly Diagnosed Philadelphia Chromosome Positive Chronic Myelogenous Leukemia
Chronic Myelogenous Leukemia
About this trial
This is an interventional treatment trial for Chronic Myelogenous Leukemia focused on measuring CML, STI571, imatinib, interferon, interferon alpha, cytosine arabinoside, chronic myeloid leukemia, Philadelphia chromosome positive
Eligibility Criteria
Inclusion criteria: Must have signed consent for Amendment 5 Must have completed visit 62 of the core IRIS trial or be in follow-up Must be on STI571 treatment If on IFN treatment, must be willing to cross over to STI571 treatment Exclusion criteria: Patients who have discontinued from the study and are in follow-up Patients who are on IFN treatment and do not want to cross over to STI571 treatment Patients who have not consented to amendment 5 Patients who did not complete the amendment 5 protocol Additional protocol-defined inclusion/exclusion criteria may apply
Sites / Locations
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Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
imatinib (STI571)
IFN-a+Ara-C
In the first-line treatment period participants received imatinib 400 mg orally once daily in the morning. Hydroxyurea was permitted in the first 6 months to keep the white blood cell count (WBC) below 20.0 X 10^9/liter. If protocol specific criteria applied, participants were eligible to crossover to receive interferon-alpha (IFN-a) subcutaneous (SC) injections escalated over 4 weeks to achieve a target dose of 5 MU/m^2/day. After the maximum tolerated dose of IFN-a was achieved, participants also received cytarabine (ARA-C) 20 mg/m^2/day (max 40 mg) SC injection for 10 days every month. Maximum study duration was 11.5 years.
In the first-line treatment period participants received interferon-alpha (IFN-a) subcutaneous (SC) injections escalated over 4 weeks to achieve a target dose of 5 MU/m^2/day. After the maximum tolerated dose of IFN-a was achieved, participants also received cytarabine (ARA-C) 20 mg/m^2/day (max 40 mg) SC injections for 10 days every month. Hydroxyurea was permitted in the first 6 months to keep the white blood cell count (WBC) below 20.0 X 10^9/liter. If protocol specific criteria applied, participants were eligible to crossover to the second-line treatment period to receive imatinib (STI571). IFN treatment was discontinued with protocol amendment 6. Maximum study duration was 8 years.