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GI-102 (CD80-IgG4 Fc-IL2v3) in Combination With Pasritamig in Patients With Metastatic Castration-resistant Prostate Cancer (mCRPC) (JET-201)

2026年11月4日 更新者：GI Innovation, Inc.

A Phase 1b/2, Open-label, Multi-center Study to Evaluate the Anti-cancer Activity, Safety and Tolerability of GI-102 (CD80-IgG4 Fc-IL2v3) in Combination With Pasritamig [T-CELL-Redirecting Agent Targeting Human Kallikrein 2 (KLK2)] in Patients With Metastatic Castration-resistant Prostate Cancer (mCRPC) Who Progressed on Previous Novel Hormonal Therapy (NHT) (JET-201)

The purpose of this clinical trial is to evaluate the safety, tolerability, and preliminary anti-cancer activity of GI-102 in combination with pasritamig in adult men with metastatic castration-resistant prostate cancer (mCRPC) whose cancer has progressed after previous treatment with a novel hormonal therapy (NHT).

調査の概要

状態

募集

条件

介入・治療

研究の種類

介入

入学 (推定)

107

段階

  • フェーズ2
  • フェーズ 1

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

  • アメリカ
    • New York
      • New York、New York、アメリカ、10032
        • まだ募集していません
        • Columbia University Medical Center
        • 主任研究者：
          • Mark N. Stein, M.D.
  • 韓国
      • Seoul、韓国、05505
        • 募集
        • Asan Medical Center
        • 主任研究者：
          • Jae Lyun Lee, M.D., Ph.D.
      • Seoul、韓国、03722
        • 募集
        • Yonsei University Health System, Severance Hospital
        • 主任研究者：
          • Sang Joon Shin, M.D., Ph.D.
    • Banpo-daero
      • Seoul、Banpo-daero、韓国、06591
        • 募集
        • The Catholic University of Korea Seoul ST.MARY'S Hospital
        • 主任研究者：
          • In Ho Kim
    • Seongbuk-gu
      • Seoul、Seongbuk-gu、韓国、02841
        • 募集
        • Korea University Anam Hospital
        • 主任研究者：
          • Jwa Hoon Kim, M.D.
    • Yangcheon-gu
      • Seoul、Yangcheon-gu、韓国、07985
        • 募集
        • Ewha Womans University Mokdong Hospital
        • 主任研究者：
          • Jeong Min Cho

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

18年歳以上 (大人、高齢者)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

男

説明

Key Inclusion Criteria:

  • Male participants aged ≥18 years (or ≥19 years according to local regulatory requirements).
  • ECOG performance status of 0 to 1.
  • Histologically confirmed advanced prostate adenocarcinoma with measurable or evaluable disease. Adenocarcinoma with small cell or neuroendocrine (NE) features is permitted. However, primary small cell carcinoma, carcinoid tumor, mixed NE carcinoma, or large cell NE carcinoma (or pathologic evidence of conversion to) is disallowed.
  • Metastatic castration-resistant prostate cancer (mCRPC) with documented disease progression following at least one line of novel androgen receptor-targeted therapy.
  • PSA ≥2 ng/mL at screening.
  • No more than 2 prior taxane regimens and no prior cytotoxic chemotherapy other than taxane therapy.
  • Prior orchiectomy or ongoing androgen deprivation therapy with castrate testosterone levels.
  • Adequate organ and marrow function and adequate cardiovascular function.
  • Adequate recovery from prior anticancer therapy-related adverse events.
  • Willingness and ability to comply with study procedures and protocol-specified contraception requirements.

Key Exclusion Criteria:

  • Active or prior CNS metastases, carcinomatous meningitis, or clinically unstable spinal cord compression.
  • Significant uncontrolled cardiovascular, pulmonary, hepatic, autoimmune, infectious, or other systemic disease.
  • Active or recent clinically significant infection, including active tuberculosis, hepatitis B, or hepatitis C.
  • Active pneumonitis or interstitial lung disease (ILD), or history of clinically significant pneumonitis/ILD.
  • Recent treatment with investigational products, prohibited immunomodulating agents, radiotherapy, major surgery, or other protocol-defined prohibited therapies.
  • Prior treatment with CD3-directed therapies, including KLK2-CD3 bispecific antibodies or other CD3-targeting T-cell engagers.
  • Known hypersensitivity to GI-102, pasritamig, or their excipients, or any other condition that may interfere with study participation or interpretation of results.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

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：非ランダム化
  • 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：Safety run-in: GI-102 + pasritamig (Schedule A)

Participants receive GI-102 in combination with pasritamig during the Safety run-in phase. Dose escalation is guided by a Bayesian Optimal Interval (BOIN) design.
薬：GI-102

GI-102 will be administered in accordance with the procedures specified in the study protocol.

薬：Pasritamig

Pasritamig will be administered in accordance with the procedures specified in the study protocol.
実験的：Safety run-in: GI-102 + pasritamig (Schedule B)

Participants receive GI-102 in combination with pasritamig during the Safety run-in phase. Dose escalation is guided by a Bayesian Optimal Interval (BOIN) design.
薬：GI-102

GI-102 will be administered in accordance with the procedures specified in the study protocol.

薬：Pasritamig

Pasritamig will be administered in accordance with the procedures specified in the study protocol.
実験的：Expansion

Participants enrolled in the Expansion phase will receive the combination recommended Phase 2 regimen (cRP2R) of GI-102 and pasritamig, determined based on the safety and dose-escalation results from the Safety run-in phase.
薬：GI-102

GI-102 will be administered in accordance with the procedures specified in the study protocol.

薬：Pasritamig

Pasritamig will be administered in accordance with the procedures specified in the study protocol.

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
メジャーの説明
時間枠
Incidence and nature of DLTs (Safety run-in phase)
時間枠：From Day -14 to Cycle 1 Day 22 (35 days)

A DLT is defined as a clinically significant AE (classified according to the NCI CTCAE version 6.0) or significant laboratory abnormality that occur during the DLT assessment periods, and is considered by the Investigator to be related to the study drug(s).
From Day -14 to Cycle 1 Day 22 (35 days)
Incidence, nature, and severity of AEs graded according to CTCAE v6.0 (Safety run-in phase)
時間枠：Up to 2 years

An adverse event (AE) is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as AEs. All AE events will be graded according to National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 6.0.
Up to 2 years
PSA response rate (≥ 50% decline from baseline) per PCWG3 (Expansion phase)
時間枠：Up to 2 years

PSA response rate is defined as the percentage of participants with a decline of PSA of 50% or more from baseline.
Up to 2 years

二次結果の測定

結果測定
メジャーの説明
時間枠
PSA response rate (≥ 50% and ≥ 90% decline from baseline) per PCWG3 (Safety run-in phase)
時間枠：Up to 2 years

PSA response rate is defined as the percentage of participants with a decline of PSA of 50% (or 90%) or more from baseline.
Up to 2 years
Radiographic PFS per PCWG3
時間枠：Up to 2 years

Radiographic PFS is defined as the time from the date of first dose of any study treatment until the date of radiographic disease progression or death, whichever comes first.
Up to 2 years
Time to PSA progression
時間枠：Up to 2 years

Time to PSA progression, defined as the time from baseline to the first date of documented PSA progression per PCWG3 criteria.
Up to 2 years
Overall Response Rate (ORR) per RECIST v1.1
時間枠：Up to 2 years

Among participants with measurable disease, ORR is defined as the percentage of participants who achieve a partial response (PR) or complete response (CR) according to RECIST v1.1.
Up to 2 years
Duration of Response (DoR) per RECIST v1.1
時間枠：Up to 2 years

Among participants with measurable disease who achieve a CR or PR, DoR is defined as the time from the first documented CR or PR until the first documented disease progression according to RECIST v1.1 or death from any cause, whichever occurs first.
Up to 2 years
Disease Control Rate (DCR) per RECIST v1.1
時間枠：Up to 2 years

Among participants with measurable disease, DCR is defined as the percentage of participants who achieve a CR, PR, or stable disease (SD) according to RECIST v1.1.
Up to 2 years
Incidence, nature, and severity of AEs graded according to CTCAE v6.0 (Expansion phase)
時間枠：Up to 2 years

An adverse event (AE) is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as AEs. All AE events will be graded according to National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 6.0.
Up to 2 years
PK profile: peak plasma concentration (Cmax) of GI-102 when combined with pasritamig
時間枠：Up to 2 years

Plasma concentrations of GI-102 will be measured at specified time points following administration of GI-102 in combination with pasritamig to determine the maximum observed plasma concentration (Cmax).
Up to 2 years
PK profile: half-life (T1/2) of GI-102 when combined with pasritamig
時間枠：Up to 2 years

Plasma concentrations of GI-102 will be measured at specified time points following administration of GI-102 in combination with pasritamig to determine the terminal half-life (T1/2) of GI-102.
Up to 2 years
PK profile: area under the plasma concentration-time curve (AUC) of GI-102 when combined with pasritamig
時間枠：Up to 2 years

Plasma concentrations of GI-102 will be measured at specified time points following administration of GI-102 in combination with pasritamig to determine the area under the plasma concentration-time curve (AUC) of GI-102.
Up to 2 years

その他の成果指標

結果測定
メジャーの説明
時間枠
Immune cell phenotyping in peripheral blood
時間枠：Up to 2 years

Immune cell populations and their changes following study treatment will be assessed in peripheral blood using flow cytometry.
Up to 2 years
Overall Response Rate (ORR) per iRECIST
時間枠：Up to 2 years

ORR is defined as the percentage of participants who achieve a partial response (PR) or complete response (CR) according to the iRECIST criteria.
Up to 2 years
Overall Survival (OS)
時間枠：Up to 2 years

Overall survival (OS) is defined as the time from the first dose of study treatment to death from any cause.
Up to 2 years
Incidence of anti-GI-102 antibody (ADA)
時間枠：Up to 2 years

Serum samples will be analyzed using a validated assay to determine the incidence of anti-GI-102 antibodies (ADA).
Up to 2 years
Incidence of Neutralizing Antibody (Nab) Against GI-102
時間枠：Up to 2 years

Serum samples that are positive for anti-GI-102 antibodies (ADA) will be further analyzed using a validated assay to determine the incidence of neutralizing antibodies (Nab).
Up to 2 years

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

GI Innovation, Inc.

協力者

Janssen Research & Development, LLC

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年10月12日

一次修了 (推定)

2029年3月31日

研究の完了 (推定)

2029年9月30日

試験登録日

最初に提出

2026年10月1日

QC基準を満たした最初の提出物

2026年10月6日

最初の投稿 (実際)

2026年10月13日

学習記録の更新

投稿された最後の更新 (実際)

2026年11月9日

QC基準を満たした最後の更新が送信されました

2026年11月4日

最終確認日

2026年11月1日

詳しくは

本研究に関する用語

キーワード

その他の研究ID番号

  • GII-102-P201 (JET-201)

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?

いいえ

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

はい

米国FDA規制機器製品の研究

いいえ

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