Prospective single-center study of chronic myeloid leukemia in chronic phase: switching from branded imatinib to a copy drug and back

Leuk Lymphoma. 2014 Dec;55(12):2830-4. doi: 10.3109/10428194.2014.904508. Epub 2014 Apr 22.

Abstract

Imatinib (Glivec(®)/Gleevec(®)) has shown long-term efficacy and safety in randomized trials. No large-scale studies have prospectively assessed the benefit-risk profile of an imatinib copy drug. We prospectively evaluated the response of patients with chronic myeloid leukemia in chronic phase in one institution. Patients with a complete hematologic response (n = 126) switched from branded imatinib to an imatinib copy drug. Subsequently, all patients switched back to the branded imatinib. Many patients in this study had a loss of hematologic response and tolerability issues with the imatinib copy drug. Hematologic response and tolerability improved upon retreatment with branded Glivec.

Keywords: Glivec/Gleevec; Imatib; Imatinib; chronic myeloid leukemia; complete hematologic response; copy drug.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Antineoplastic Agents / administration & dosage
  • Antineoplastic Agents / adverse effects
  • Antineoplastic Agents / therapeutic use*
  • Benzamides / administration & dosage
  • Benzamides / adverse effects
  • Benzamides / therapeutic use
  • Disease Progression
  • Drug Substitution
  • Female
  • Humans
  • Imatinib Mesylate
  • Leukemia, Myeloid, Chronic-Phase / diagnosis
  • Leukemia, Myeloid, Chronic-Phase / drug therapy*
  • Male
  • Middle Aged
  • Piperazines / administration & dosage
  • Piperazines / adverse effects
  • Piperazines / therapeutic use
  • Prospective Studies
  • Pyrimidines / administration & dosage
  • Pyrimidines / adverse effects
  • Pyrimidines / therapeutic use
  • Treatment Outcome
  • Young Adult

Substances

  • Antineoplastic Agents
  • Benzamides
  • Piperazines
  • Pyrimidines
  • Imatinib Mesylate