PAlbociclib and Circulating Tumor DNA for ESR1 Mutation Detection

Summary

This study is a randomized, open-label, multicentric, phase III trial conducted in patients receiving aromatase inhibitor and palbociclib as first line therapy for estrogen receptor (ER)-positive HER2-negative metastatic breast cancer and which aims to evaluate, at the onset of ESR1 mutations in circulating tumor DNA, the efficacy of a change of the hormone therapy (aromatase inhibitor (AI) changed to fulvestrant) combined to palbociclib, together with the safety of hormone therapy and palbociclib combination in the overall population.

Timeline

Start

2017-03-22

Primary completion

2021-04-30

Completion

2025-09-22

Publications

• Bidard FC, Hardy-Bessard AC, Dalenc F, Bachelot T, Pierga JY, de la Motte Rouge T, Sabatier R, Dubot C, Frenel JS, Ferrero JM, Ladoire S, Levy C, Mouret-Reynier MA, Lortholary A, Grenier J, Chakiba C, Stefani L, Plaza JE, Clatot F, Teixeira L, D'Hondt V, Vegas H, Derbel O, Garnier-Tixidre C, Canon JL, Pistilli B, Andre F, Arnould L, Pradines A, Bieche I, Callens C, Lemonnier J, Berger F, Delaloge S; PADA-1 investigators. Switch to fulvestrant and palbociclib versus no switch in advanced breast cancer with rising ESR1 mutation during aromatase inhibitor and palbociclib therapy (PADA-1): a randomised, open-label, multicentre, phase 3 trial. Lancet Oncol. 2022 Nov;23(11):1367-1377. doi: 10.1016/S1470-2045(22)00555-1. Epub 2022 Sep 29.
• Berger F, Marce M, Delaloge S, Hardy-Bessard AC, Bachelot T, Bieche I, Pradines A, De La Motte Rouge T, Canon JL, Andre F, Arnould L, Clatot F, Lemonnier J, Marques S, Bidard FC; PADA-1 investigators. Randomised, open-label, multicentric phase III trial to evaluate the safety and efficacy of palbociclib in combination with endocrine therapy, guided by ESR1 mutation monitoring in oestrogen receptor-positive, HER2-negative metastatic breast cancer patients: study design of PADA-1. BMJ Open. 2022 Mar 3;12(3):e055821. doi: 10.1136/bmjopen-2021-055821.

Drugs

Indications