Conditions: Breast Cancer
Keywords: Subcutaneous trastuzumab Intravenous trastuzumab HER2 positive Advanced Breast Cancer
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 166
Healthy volunteers: no

Brief summary:
GEICAM/2012-07 is a study phase III, prospective, open, randomized, multicenter and national designed to assess patient preference for intravenous (IV) or subcutaneous (SC) of trastuzumab, and within the SC by the administration through the vial or device self-administration in patients with disseminated breast cancer HER2.

Detailed description:
Approximately 195 patients will be included to receive subcutaneous trastuzumab a fixed dose of 600 mg every 3 weeks for 4 cycles (2 administered from the injection of a vial with a syringe and 2 with the injection device). Following administration of these four cycles, the patient will decide whether or not to continue with the subcutaneous formulation of trastuzumab every 3 weeks until progression (out of the study). Since the randomization in the study until the start with subcutaneous trastuzumab, patients will receive a treatment cycle of intravenous trastuzumab as usual.

Main objective: Proportion of patients indicate a preference for the use of subcutaneous vs intravenous trastuzumab.

This principal primary objective will be analyzed with the answers to questionnaire of experiences and preferences of the patients (Principal endpoint) The duration of the study has been estimated after 34 months.

Arms:
arm 1: Trastuzumab intravenous (T-IV) x 1 cycle (usual dose of Trastuzumab), followed by 600mg of Trastuzumab Subcutaneous (T-SC) with vial (Injectable Solution) x 2 cycles, followed by 600mg of T-SC with single injection device (SID) x 2 cycles. arm 2: Trastuzumab intravenous (T-IV) x 1 cycle (usual dose of Trastuzumab), followed by 600mg of Trastuzumab Subcutaneous (T-SC) with single injection device (SID) x 2 cycles, followed by 600mg of T-SC with vial (Injectable Solution) x 2 cycles.

Interventions: intervention 1: Trastuzumab Injectable Solution intervention 2: Trastuzumab Injectable Product intervention 3: Trastuzumab Injection
Intervention descriptions: intervention 1: Subcutaneous injection vial with a fixed dose of trastuzumab (600mg) and recombinant human hyaluronidase (10.000U) identical to that provided by the device. 3 weeks x 2 cycles. intervention 2: Single injection device is provided and loaded with the mixture of trastuzumab (600mg) and recombinant human hyaluronidase (10.000U) and is ready for use. 3 weeks x 2 cycles intervention 3: Powder for concentrate for solution for infusion. 1 cycle

Protocol document: