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Study identifier: NCT06298084 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Dose-Expansion Modular Study To Explore the Safety, Tolerability, and Anti-tumor Activity of HER3- DXd Monotherapy and Combinations in Patients With Inoperable Advanced Breast Cancer (ABC) After Progression on T-DXd

Condition: Breast Cancer Metastatic · HER2-positive Metastatic Breast Cancer · HER2 Low Breast Carcinoma  ·  Sponsor: Gustave Roussy, Cancer Campus, Grand Paris

PhasePhase 1/Phase 2
Planned participants152
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

ICARUS-BREAST02 is an open-label, multicenter, phase 1b/2, platform study that aims to evaluate the safety, tolerability, and efficacy of HER3-DXd monotherapy and in combination with other anti-cancer agents in patients with ABC. The first 2 modules will evaluate: i. safety and efficacy of HER3-DXd with olaparib in patients with HER2-low and HER2-positive ABC progressed on T-DXd (Module 1) and HER3-DXd monotherapy in patients with HER2-low ABC progressed on T-DXd (Module 0). The main objective of Part 1 is to assess the safety and tolerability of HER3-DXd monotherapy and combination and to determine the recommended phase 2 dose (RP2D) of the combination containing HER3-DXd. The main objective of Part 2 is to assess the efficacy of study therapies in each module based on investigator assessment as evaluated by the objective response rate (ORR) at 6 months.

This description comes directly from the study's public registry record.

Talk to the study team

Barbara Pistilli  ·  +33 (0)1 42 11 61 62  ·  barbara.pistilli@gustaveroussy.fr

Fernanda Mosele  ·  +33 (0)1 42 11 61 43  ·  Mariafernanda.MOSELE@gustaveroussy.fr

Always discuss trial participation with your own doctor first.

Locations (1)

Gustave Roussy InstitutVillejuif, FranceRecruiting

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Source record: clinicaltrials.gov/study/NCT06298084