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LifEStyle Intervention to Enhance Efficacy of Neoadjuvant Therapy in Patients With Triple Negative Breast Cancer
Sponsor: Universitaire Ziekenhuizen KU Leuven
Summary
LESLIE is a multicentric randomized controlled trial in patients with triple negative breast cancer receiving neoadjuvant chemo/immunotherapy (NAT). This trial investigates the hypothesis that adding a cyclic fasting-mimicking diet combined with exercise during the NAT improves the NAT's therapeutic efficacy, treatment tolerability and compliance, as well as improve quality of life.
Official title: The LESLIE Trial: LifEStyle Intervention to Enhance Efficacy of Neoadjuvant Systemic Therapy in Patients With Triple Negative Breast Cancer
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
356
Start Date
2026-02-01
Completion Date
2031-09-01
Last Updated
2026-03-20
Healthy Volunteers
No
Interventions
Exercise Therapy
The exercise regimen consists of a non-linear aerobic exercise program of 3-4 sessions per week. During days of FMD no exercise will be prescribed.
Fasting-Mimicking Diet
The FMD is a plant-based, low-carbohydrate, low-caloric diet of 4 days , with the fourth day being the day of chemo/immunotherapy. A total of 6 FMD cycles will be administered over the treatment period of 20 weeks.
SOC
Four cycles of an intravenous infusion of pembrolizumab (200 mg) once every 3 weeks plus paclitaxel (80 mg per square meter of body-surface area once weekly) plus carboplatin (at a dose based on an area under the concentration-time curve of 1.5 mg per milliliter per minute) once weekly in the first 12 weeks, followed by four cycles of epirubicin (90 mg per square meter) plus cyclophosphamide (600 mg per square meter) once every 2 weeks plus pembrolizumab 400mg every 6 weeks or pembrolizumab 200mg every 3 weeks in the subsequent 8 weeks.
Locations (10)
UZ Antwerpen
Antwerp, Belgium
Ziekenhuis aan de Stroom
Antwerp, Belgium
Cliniques universitaires Saint-Luc (UCLouvain)
Brussels, Belgium
UZ Brussel
Brussels, Belgium
UZ Gent
Ghent, Belgium
Jessa Ziekenhuis Hasselt
Hasselt, Belgium
AZ Groeninge
Kortrijk, Belgium
University Hospital Leuven
Leuven, Belgium
Centre Hospitalier Universitaire (CHU) UCL Liège
Liège, Belgium
Centre Hospitalier Universitaire (CHU) UCL Namur
Namur, Belgium