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.
調査の概要
研究の種類
入学 (推定)
段階
- フェーズ 3
連絡先と場所
研究連絡先
- 名前：US GSK Clinical Trials Call Center
- 電話番号：877-379-3718
- メール：GSKClinicalSupportHD@gsk.com
研究連絡先のバックアップ
- 名前：EU GSK Clinical Trials Call Center
- 電話番号：+44 (0) 20 89904466
- メール：GSKClinicalSupportHD@gsk.com
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
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.
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：処理
- 割り当て：ランダム化
- 介入モデル：順次割り当て
- マスキング：なし（オープンラベル）
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的：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 |
|
実験的：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 |
この研究は何を測定していますか？
主要な結果の測定
結果測定 |
時間枠 |
|---|---|
|
Part 1: Serum Trough Concentration (Ctrough) After First Dose of Dostarlimab
時間枠：Up to 42 days
|
Up to 42 days
|
|
Part 1: Area Under the Concentration-time Curve (AUC) of Dostarlimab
時間枠：Up to 42 days
|
Up to 42 days
|
|
Part 2: Observed Ctrough of Dostarlimab
時間枠：Up to 168 days
|
Up to 168 days
|
|
Part 2: Model-predicted (MP) AUC of Dostarlimab
時間枠：Up to 21 days
|
Up to 21 days
|
|
Part 2: MP AUC of Dostarlimab
時間枠：Up to 168 days
|
Up to 168 days
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Part 1: Ctrough of Dostarlimab
時間枠：Up to 42 days
|
Up to 42 days
|
|
|
Part 1: AUC of Dostarlimab
時間枠：Up to 42 days
|
Up to 42 days
|
|
|
Part 1: Maximum Observed Concentration (Cmax) of Dostarlimab
時間枠：Up to 42 days
|
Up to 42 days
|
|
|
Part 1: Time to Peak Drug Concentration (Tmax) of Dostarlimab
時間枠：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)
時間枠：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
時間枠：Up to 39 months
|
Up to 39 months
|
|
|
Parts 1 and 2: Confirmed Overall Response Rate (ORR)
時間枠：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)
時間枠：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)
時間枠：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)
時間枠：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
時間枠：Up to 39 months
|
Up to 39 months
|
|
|
Part 2: Number of Participants with ADAs against Dostarlimab
時間枠：Up to 3 years
|
Up to 3 years
|
|
|
Part 2: MP Ctrough of Dostarlimab
時間枠：Up to 168 days
|
Up to 168 days
|
|
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Part 2: MP Ctrough at Steady State of Dostarlimab
時間枠：Up to 168 days
|
Up to 168 days
|
|
|
Part 2: MP AUC at Steady State of Dostarlimab
時間枠：Up to 168 days
|
Up to 168 days
|
|
|
Part 2: MP Cmax of Dostarlimab
時間枠：Up to 168 days
|
Up to 168 days
|
協力者と研究者
スポンサー
捜査官
- スタディディレクター：GSK Clinical Trials、GlaxoSmithKline
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
キーワード
追加の関連 MeSH 用語
その他の研究ID番号
- 300118
- 2025 (米国 NIH グラント/契約)
- 2025-525060-15-00 (Ctis)
- EN-35 (その他の識別子：ENGOT Number)
- GOG-3125 (その他の識別子：GOG Number)
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
IPD プランの説明
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 共有時間枠
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 共有アクセス基準
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 共有サポート情報タイプ
- STUDY_PROTOCOL
- SAP
- ICF
- CSR
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。