Efficacy of 400 Mg Versus 800 Mg Imatinib in Chronic Myeloid Leukemia in Chronic Phase Patients - TOPS (Tyrosine Kinase Inhibitor Optimization and Selectivity)

Summary

This study investigated the safety and efficacy of 400mg Versus 800mg imatinib in patients with newly diagnosed, previously untreated chronic myeloid leukemia in chronic phase (CML-CP) using molecular endpoints.

Timeline

Start

2005-06

Primary completion

2010-11

Completion

2010-11

Outcome

Outcome not reported

Stopped: “This study was prematurely discontinued because no improvement was observed in the 800mg dose compared to 400mg dose”

Publications

• Branford S, Yeung DT, Parker WT, Roberts ND, Purins L, Braley JA, Altamura HK, Yeoman AL, Georgievski J, Jamison BA, Phillis S, Donaldson Z, Leong M, Fletcher L, Seymour JF, Grigg AP, Ross DM, Hughes TP. Prognosis for patients with CML and >10% BCR-ABL1 after 3 months of imatinib depends on the rate of BCR-ABL1 decline. Blood. 2014 Jul 24;124(4):511-8. doi: 10.1182/blood-2014-03-566323. Epub 2014 May 23.
• Branford S, Yeung DT, Ross DM, Prime JA, Field CR, Altamura HK, Yeoman AL, Georgievski J, Jamison BA, Phillis S, Sullivan B, Briggs NE, Hertzberg M, Seymour JF, Reynolds J, Hughes TP. Early molecular response and female sex strongly predict stable undetectable BCR-ABL1, the criteria for imatinib discontinuation in patients with CML. Blood. 2013 May 9;121(19):3818-24. doi: 10.1182/blood-2012-10-462291. Epub 2013 Mar 20.
• Guilhot F, Hughes TP, Cortes J, Druker BJ, Baccarani M, Gathmann I, Hayes M, Granvil C, Wang Y. Plasma exposure of imatinib and its correlation with clinical response in the Tyrosine Kinase Inhibitor Optimization and Selectivity Trial. Haematologica. 2012 May;97(5):731-8. doi: 10.3324/haematol.2011.045666. Epub 2012 Feb 7.

Drugs

Indications