A Phase IIIB, Multi-Center, Open Label Study For Postmenopausal Women With Estrogen Receptor Positive Locally Advanced or Metastatic Breast Cancer Treated With Everolimus (RAD001) in Combination With Exemestane: 4EVER - Efficacy, Safety, Health Economics, Translational Research
Trial Snapshot
- Phase
- Phase 3
- Status
- Completed
- Sponsor
- Novartis Pharmaceuticals
- Enrollment
- 301
- Locations
- 1
- Primary Endpoint
- Overall Response Rate (ORR) after 24 weeks of treatment
Study Overview
Brief Summary
The present multi-center, open-label, single-arm study aims to evaluate the efficacy and safety, quality of life and health resources utilization in postmenopausal women with hormone receptor positive breast cancer progressing following prior therapy with non-steroidal aromatase inhibitors (NSAI) treated with the combination of Everolimus and Exemestane.
Detailed Description
In light of the need for new treatment options for postmenopausal, hormone receptor positive, HER2 negative women after failure of prior non-steroidal aromatase inhibitor (NSAI) therapy, the BOLERO-2 trial was performed and demonstrated significant efficacy of the combinatorial treatment of Everolimus and Exemestane compared to an Exemestane monotherapy in this setting.
In this randomized, double blind, placebo-controlled trial a statistically significant improvement in progression-free survival (PFS) by adding Everolimus to exemestane versus Exemestane alone was reported. Adding Everolimus determined a 2.4-fold prolongation in PFS from 3.2 up to 7.4 months and so lowered the risk of cancer progression by 56% for these women. These findings were confirmed by an independent assessment (4.1 vs. 11.0 months, risk reduction: 64%). The quality of life data shows positive trend in the Everolimus plus Exemestane treatment arm. (Baselga 2011, Hortobagyi 2011). Thus, the benefit of the combinatorial treatment versus Exemestane monotherapy was shown in a defined patient population under controlled conditions.
The primary objective of this trial to assess the Overall Response Rate (ORR) in postmenopausal women with hormone receptor positive breast cancer progressing following prior therapy with NSAIs treated with the combination of Everolimus and Exemestane. The secondary objectives include, Progression free survival (PFS), Overall survival (OS), Safety, Change in Quality of life scores over time, Health resource utilization. The exploratory objectives reflect scientific interest within the treatment of metastatic breast cancer and are to be modified, if applicable, according to the current scientific state of the art at the time of actual analysis. These include: the influence of age, performance status, cancer activity and inflammation on anxiety and depression; changes in serum bone-turnover biomarkers; Pharmacogenetics of Everolimus in patients with advanced breast cancer; presence and molecular characteristics of Circulating Tumor Cells; correlation of response to Exemestane/Everolimus with Proteomic analysis.
The present national, multi-center, open-label, single-arm study aims to evaluate the efficacy and safety, quality of life and health resources utilization of the combination of Everolimus and Exemestane in a broader patient population compared to BOLERO-2, i.e. without limitations as to the number of previous chemotherapy lines, the time point of progression after NSAI therapy, and the previous endocrine therapy as patients under Exemestane monotherapy may be enrolled. Since the combination was shown to significantly improve PFS in the previous BOLERO-2 trial, for ethical reasons no endocrine comparator drugs will be investigated in the present study, due to the low efficacy of Exemestane monotherapy (PFS 3.2 months).
Study Design
- Study Type
- Interventional
- Allocation
- Na
- Intervention Model
- Single Group
- Primary Purpose
- Treatment
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- Female
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- Not provided
Exclusion Criteria
- Not provided
Arms & Interventions
Everolimus & Exemestane
This study will be performed in 300 postmenopausal women with hormone receptor positive locally advanced or metastatic breast cancer progressing following prior therapy with non-steroidal aromatase inhibitors (NSAI) as defined by: 1. Recurrence while on or after completion of an adjuvant treatment including Letrozole or Anastrozole, or 2. Progression while on or following the completion of Letrozole or Anastrozole treatment for locally advanced or metastatic breast cancer. Except for prior use of mTOR inhibitors, there are no restrictions as to the last anticancer treatment prior to enrollment. Patients must have documented evidence of recurrence or progression on last therapy prior to enrollment. Written informed consent must be obtained prior to any screening procedures. The investigator or designee must ensure that only patients who meet all the following inclusion and none of the exclusion criteria are offered enrollment in the study.
Intervention: Exemestane (Drug)
Everolimus & Exemestane
This study will be performed in 300 postmenopausal women with hormone receptor positive locally advanced or metastatic breast cancer progressing following prior therapy with non-steroidal aromatase inhibitors (NSAI) as defined by: 1. Recurrence while on or after completion of an adjuvant treatment including Letrozole or Anastrozole, or 2. Progression while on or following the completion of Letrozole or Anastrozole treatment for locally advanced or metastatic breast cancer. Except for prior use of mTOR inhibitors, there are no restrictions as to the last anticancer treatment prior to enrollment. Patients must have documented evidence of recurrence or progression on last therapy prior to enrollment. Written informed consent must be obtained prior to any screening procedures. The investigator or designee must ensure that only patients who meet all the following inclusion and none of the exclusion criteria are offered enrollment in the study.
Intervention: Everolimus (RAD001) (Drug)
Outcomes
Primary Outcomes
Overall Response Rate (ORR) after 24 weeks of treatment
Time Frame: 24 weeks
The Overall response rate (ORR) is the proportion of patients with a best overall response of confirmed complete (CR) or partial (PR) response by Week 24. The best overall response is determined from the sequence of investigator overall lesion responses according to RECIST 1.1. To be assigned a best overall response of CR at least two determinations of CR at least 4 weeks apart before progression are required. To be assigned a best overall response of PR at least two determinations of PR or better at least 4 weeks apart before progression (and not qualifying for a CR) are required.
Secondary Outcomes
- Resource utilization(48 weeks)
- Health-related quality of life(48 weeks)
- Overall Response Rate (ORR) after 48 weeks of treatment(48 weeks)
- Overall survival (OS) after 48 weeks of treatment(48 weeks)
- Safety within 48 weeks of treatment(48 weeks)
- Progression free survival (PFS) after 48 weeks of treatment(48 weeks)