Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-24 @ 12:44 PM
Ignite Modification Date:
2025-12-24 @ 12:44 PM
NCT ID:
NCT01589861
Brief Summary:
This study is based upon the following points:
1. Resistance to trastuzumab, either primary or secondary, is a clinically relevant issue.
2. PI3K/AKT activation, due to loss of expression/function of PTEN and/or activating mutations of PIK3CA, is a mechanism of resistance with clinical relevance in breast cancer. Such activation can be detected by:
* IHC evaluation of PTEN protein expression
* genotyping of PIK3CA exon 9 and 20
* IHC evaluation of phospho-AKT expression
3. BKM120 is an effective PI3K inhibitor. BKM120 and anti-HER2 therapy may have a synergistic antitumor activity in preclinical model of HER2+ breast cancer.
4. Lapatinib is an effective anti-HER2 therapy in trastuzumab-resistant disease.
5. For the evaluation of novel targeted therapies, selecting a patient population enriched for activation of the target to be modulated should allow to maximize the differences in clinical outcome that are expected in the experimental arm, and thus to minimize the patient number to include.
6. We propose to test in a phase I/II study the combination of lapatinib and BKM120 in trastuzumab-resistant HER2+ MBC patients, enriched for activation of PI3K/AKT as detected by loss of expression of PTEN (IHC), and/or mutation of PIK3CA and/or overexpression of phospho-AKT (IHC). Only for phase II patients, mutational status will be an inclusion criteria. For phase I patients molecular status will be a retrospective exploratory analysis.
Study:
NCT01589861
Study Brief:
Protocol Section:
NCT01589861