Two Part (Phase1b/ Phase3) Trial of Subcutaneous Dostarlimab Plus Carboplatin-Paclitaxel in Participants With Primary Advanced or Recurrent Endometrial Cancer (SAPPHIRE)
An Open-label, Multicenter, 2-Part Study: A Phase 1b Dose Selection Followed by a Randomized Phase 3 to Evaluate the Pharmacokinetics, Efficacy, and Safety of Subcutaneous Dostarlimab Plus Carboplatin-Paclitaxel Versus Intravenous Dostarlimab Plus Carboplatin-Paclitaxel in Participants With Primary Advanced or Recurrent Endometrial Cancer (SAPPHIRE)
This is an open-label study, meaning both the researchers and participants will know which treatment is being given.
The study has two parts. In Part 1, researchers will identify the most suitable SC dose. In Part 2, participants will be randomly assigned by chance to receive dostarlimab as either an SC injection or an IV infusion. All participants will also receive carboplatin and paclitaxel. Treatment may continue for up to 3 years, with participants closely monitored throughout the study.
연구 개요
연구 유형
등록 (추정된)
단계
- 3단계
연락처 및 위치
연구 연락처
- 이름: US GSK Clinical Trials Call Center
- 전화번호: 877-379-3718
- 이메일: GSKClinicalSupportHD@gsk.com
연구 연락처 백업
- 이름: EU GSK Clinical Trials Call Center
- 전화번호: +44 (0) 20 89904466
- 이메일: GSKClinicalSupportHD@gsk.com
참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
- Participant is at least 18 years of age (or the legal age of consent in the jurisdiction in which the trial is taking place) at the time of signing the Informed Consent Form (ICF).
- Participant has primary Stage III or Stage IV disease or first recurrent EC.
- Participant must have a documented Mismatch repair (MMR)/Microsatellite Instability (MSI) status.
- Participant is capable of giving signed informed consent, including compliance with the requirements and restrictions listed in the ICF and in the protocol.
- Participant has an Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1, or 2 for Part 1 and an ECOG performance status of 0 or 1 for Part 2.
- Participant has adequate organ function.
Exclusion Criteria:
- Participant has history of or active autoimmune disease that has required systemic treatments within the 2 years prior to screening.
- Participant has a history of severe allergic and/or anaphylactic reactions to chimeric, human or humanized antibodies, fusion proteins, or known hypersensitivity to carboplatin, paclitaxel or dostarlimab components or excipients.
- Participant has received prior therapy with anti-programmed death protein 1 (PD-1), anti-programmed cell death ligand 1 (PD-L1), or anti-PD-L2 agent.
- Participant has known uncontrolled brain or central nervous system (CNS) metastases.
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 무작위
- 중재 모델: 순차적 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
|
실험적: Part 1 (Phase 1b) SC dostarlimab and IV dostarlimab
Participants will receive SC dostarlimab in Cohorts 1, 2, 4, 5 and 6, at different doses, to determine the doses of SC dostarlimab that will yield drug exposures comparable to approved IV dosing regimens. Participants in Cohort 3 will receive IV dostarlimab. Participants in all cohorts will receive carboplatin and paclitaxel. After 6 cycles, all participants will receive IV dostarlimab for up to 3 years until progression, death, or intolerable toxicities. |
Dostarlimab will be administered as SC injection and IV infusion Carboplatin and paclitaxel will be administered as an IV infusion |
|
실험적: Part 2 (Phase 3): SC dostarlimab (experimental) or IV dostarlimab (standard of care)
Eligible participants will be randomly assigned to receive either SC dostarlimab or IV dostarlimab (standard of care arm) in a 1:1 ratio. Participants randomized to the experimental arm will receive SC dostarlimab in combination with carboplatin and paclitaxel for 6 cycles, followed by SC dostarlimab monotherapy for up to 3 years of treatment in total. Participants randomized to the standard of care arm will receive IV dostarlimab in combination with carboplatin and paclitaxel for 6 cycles, followed by IV dostarlimab monotherapy for up to 3 years of treatment in total. |
Dostarlimab will be administered as SC injection and IV infusion Carboplatin and paclitaxel will be administered as an IV infusion |
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
기간 |
|---|---|
|
Part 1: Serum Trough Concentration (Ctrough) After First Dose of Dostarlimab
기간: Up to 42 days
|
Up to 42 days
|
|
Part 1: Area Under the Concentration-time Curve (AUC) of Dostarlimab
기간: Up to 42 days
|
Up to 42 days
|
|
Part 2: Observed Ctrough of Dostarlimab
기간: Up to 168 days
|
Up to 168 days
|
|
Part 2: Model-predicted (MP) AUC of Dostarlimab
기간: Up to 21 days
|
Up to 21 days
|
|
Part 2: MP AUC of Dostarlimab
기간: Up to 168 days
|
Up to 168 days
|
2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Part 1: Ctrough of Dostarlimab
기간: Up to 42 days
|
Up to 42 days
|
|
|
Part 1: AUC of Dostarlimab
기간: Up to 42 days
|
Up to 42 days
|
|
|
Part 1: Maximum Observed Concentration (Cmax) of Dostarlimab
기간: Up to 42 days
|
Up to 42 days
|
|
|
Part 1: Time to Peak Drug Concentration (Tmax) of Dostarlimab
기간: Up to 42 days
|
Up to 42 days
|
|
|
Parts 1 and 2: Number of Participants Experiencing Adverse Events (AEs), Serious AEs (SAEs), Treatment-emergent AEs (TEAEs) and Immune-mediated AEs (imAEs)
기간: Up to 39 months
|
Up to 39 months
|
|
|
Parts 1 and 2: Number of Participants with TEAEs Leading to Infusion or Injection Interruption, Dose Modifications, Trial Intervention Discontinuation, or Death
기간: Up to 39 months
|
Up to 39 months
|
|
|
Parts 1 and 2: Confirmed Overall Response Rate (ORR)
기간: Up to 3 years
|
Confirmed ORR is defined as the percentage of participants reaching confirmed complete response (CR) or confirmed partial response (PR) per RECIST 1.1 by blinded independent central review (BICR) and investigator assessment |
Up to 3 years
|
|
Parts 1 and 2: Duration of Response (DoR)
기간: Up to 3 years
|
DoR per RECIST 1.1 by BICR and investigator assessment is defined as the time from the date of first documented objective response of CR or PR that is subsequently confirmed until the date of first documented progressive disease (PD) or death due to any cause, whichever comes first |
Up to 3 years
|
|
Parts 1 and 2: Progression-free Survival (PFS)
기간: Up to 3 years
|
PFS is defined as the time from the date of randomization to the date of first documented objective tumor progression per RECIST 1.1 by BICR and investigator assessment or death due to any cause, whichever comes first |
Up to 3 years
|
|
Parts 1 and 2: Overall Survival (OS)
기간: Up to 3 years
|
OS is defined as the time from the date of randomization to the date of death due to any cause |
Up to 3 years
|
|
Part 1: Number of Participants with Antidrug Antibody (ADAs) against Dostarlimab
기간: Up to 39 months
|
Up to 39 months
|
|
|
Part 2: Number of Participants with ADAs against Dostarlimab
기간: Up to 3 years
|
Up to 3 years
|
|
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Part 2: MP Ctrough of Dostarlimab
기간: Up to 168 days
|
Up to 168 days
|
|
|
Part 2: MP Ctrough at Steady State of Dostarlimab
기간: Up to 168 days
|
Up to 168 days
|
|
|
Part 2: MP AUC at Steady State of Dostarlimab
기간: Up to 168 days
|
Up to 168 days
|
|
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Part 2: MP Cmax of Dostarlimab
기간: Up to 168 days
|
Up to 168 days
|
공동 작업자 및 조사자
스폰서
수사관
- 연구 책임자: GSK Clinical Trials, GlaxoSmithKline
연구 기록 날짜
연구 주요 날짜
연구 시작 (추정된)
기본 완료 (추정된)
연구 완료 (추정된)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
키워드
추가 관련 MeSH 약관
기타 연구 ID 번호
- 300118
- 2025 (미국 NIH 보조금/계약)
- 2025-525060-15-00 (씨티스)
- EN-35 (기타 식별자: ENGOT Number)
- GOG-3125 (기타 식별자: GOG Number)
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
IPD 계획 설명
Study Sponsor will assess requests from qualified researchers for anonymized individual patient-level data and related study documents. Data sharing is subject to certain criteria, conditions, and exceptions. For further information, refer to https://www.gsk-studyregister.com/gsk-patient-level-data-sharing-july2025.pdf
IPD 공유 기간
Anonymized IPD will be made available within 6 months of publication of primary, key secondary and safety results for studies in product with approved indication(s) or terminated asset(s) across all indications.
IPD 공유 액세스 기준
Anonymized IPD is shared with researchers whose proposals are approved by an Independent Review Panel and after a Data Sharing Agreement is in place. Access is provided for an initial period of 12 months but an extension may be granted, when justified, for up to 6 months.
IPD 공유 지원 정보 유형
- 연구_프로토콜
- 수액
- ICF
- CSR
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
미국 FDA 규제 기기 제품 연구
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