About this trial
DESTINY-Endometrial01 will investigate the efficacy of first-line T-DXd + rilvegostomig (Arm A) and/or T-DXd+ pembrolizumab (Arm B) when compared to chemotherapy (carboplatin + paclitaxel) + pembrolizumab (Arm C), by assessment of progression free survival (PFS), as assessed by BICR, in participants with HER2-expressing (IHC 3+/2+), pMMR, primary advanced (Stage III/IV) or recurrent EC.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
≥ 18 years of age at the time of screening. Other age restrictions may apply as per local regulations.
Histologically confirmed diagnosis of epithelial endometrial carcinoma. All histologies are allowed except for sarcomas (carcinosarcomas are allowed).
Primary Stage III (per FIGO 2023) disease with measurable disease at baseline per RECIST 1.1 based on the investigator's assessment.
Primary Stage IV (per FIGO 2023) disease regardless of presence of measurable disease at baseline.
Disqualifiers
Any severe or uncontrolled systemic diseases which, in the investigator's opinion, makes it undesirable for the participant to participate in the study or would jeopardize compliance with the protocol.
Active or ongoing serious chronic gastrointestinal conditions associated with diarrhea, primary immunodeficiency, or non-infectious skin disease requiring systemic treatment.
Active or prior documented autoimmune or inflammatory disorders requiring chronic systemic treatment with the use of disease-modifying agents, corticosteroids, or immunosuppressive drugs.
History of (non-infectious) ILD/pneumonitis that required steroids, current ILD/pneumonitis, or suspected ILD/pneumonitis that cannot be ruled out by imaging at screening.
Trial design
Parallel
Treatments tested in this trial
Trastuzumab deruxtecan
DrugExperimental therapy by intravenous infusion
Rilvegostomig
DrugExperimental therapy by intravenous infusion
Pembrolizumab
DrugImmunotherapy by intravenous infusion
Carboplatin
DrugStandard of Care (SoC) chemotherapy by intravenous infusion
Paclitaxel
DrugStandard of Care (SoC) chemotherapy by intravenous infusion
Docetaxel
DrugStandard of Care (SoC) chemotherapy by intravenous infusion
Treatment groups
Trial outcomes
Primary outcomes
Progression-free survival (PFS), as assessed by BICR
Defined as time from randomization until progression per RECIST 1.1 as assessed by Blinded Independent Central Review (BICR), or death due to any cause.
Secondary outcomes
Overall Survival (OS)
Defined as the time from randomization until the date of death due to any cause.
Progression Free Survival (PFS) as assessed by the investigator
PFS by investigator has the same attributes as estimand of PFS by BICR except tumor assessment is by the investigator.
Time from randomization to second progression or death (PFS2)
PFS2 will be defined as the time from randomization to the earliest of the progression event (following the initial investigator-assessed progression), after first subsequent therapy, or death.
Objective response rate (ORR), as assessed by BICR and investigator
ORR as assessed and confirmed by BICR is defined as the proportion of participants who have a complete response (CR) or partial response (PR), as determined and confirmed by BICR. ORR as assessed and confirmed by the investigator has the same attributes as estimand of ORR by BICR except tumor assessment per the investigator.
Sponsors and contacts
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AstraZeneca
Lead sponsor
Daiichi Sankyo Co., Ltd.
Collaborator
GOG Foundation
Collaborator
European Network of Gynaecological Oncological Trial Groups (ENGOT)
Collaborator