Thiotepa-Containing Conditioning Regimen for Allogeneic HSCT in Chronic Myelomonocytic Leukemia
Prospective Single-Arm Clinical Study of Thiotepa-Containing Conditioning Regimen for Allogeneic Hematopoietic Stem Cell Transplantation in Chronic Myelomonocytic Leukemia
This is a prospective, single-arm clinical study. It aims to evaluate the effectiveness and safety of a conditioning regimen containing thiotepa (in combination with busulfan and fludarabine, with or without ATG) of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in patients with chronic myelomonocytic leukemia (CMML) who have an intermediate-2 or high-risk prognosis.
The main goal is to evaluate 1 year RFS and OS. Other goals include assessing engraftment, overall survival, transplant-related complications, and side effects. A total of 31 participants will be enrolled.
調査の概要
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
研究連絡先
- 名前:Yuqian Sun, MD
- 電話番号:+86 88326666
- メール:sunyuqian83@hotmail.com
研究連絡先のバックアップ
- 名前:Xueyi Luo, MD
- 電話番号:+86 88326666
- メール:lll_xxx_yyy@126.com
研究場所
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Beijing、中国、100044
- 募集
- Peking University People's Hospital
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コンタクト:
- Yuqian Sun, MD
- 電話番号:+86 010-88326666
- メール:sunyuqian83@hotmail.com
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-
参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Age ≥ 18 years, any sex/gender.
- Confirmed diagnosis of chronic myelomonocytic leukemia (CMML) according to the 2022 WHO classification.
- Intermediate-2 or high-risk CMML based on CPSS or CPSS-mol score, and planned to receive allo-HSCT.
- Has a suitable hematopoietic stem cell donor:
- For haploidentical donor: at least 5/10 HLA match at HLA-A, -B, -C, -DQB1, and -DRB1.
- For unrelated donor: at least 9/10 HLA match at the same five loci.
- For matched sibling donor: 10/10 HLA match at the same five loci.
- Hematopoietic cell transplantation comorbidity index (HCT-CI) ≤ 2, with generally good health and no significant organ abnormalities or major comorbidities.
- Adequate organ function as defined below:
- Left ventricular ejection fraction (LVEF) ≥ 50%, and no uncontrolled tachycardia or bradycardia-tachycardia syndrome.
- Total bilirubin ≤ 1.5 × upper limit of normal (ULN); ALT ≤ 2 × ULN; AST ≤ 2 × ULN.
- Serum creatinine ≤ 1.5 × ULN.
- Baseline oxygen saturation > 92%.
- Pulmonary function: DLCO (corrected for hemoglobin) ≥ 40%, FEV1 ≥ 50%.
- Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2.
- Agrees not to participate in any other interventional study during the treatment period.
- Willing and able to provide written informed consent, understand the nature, purpose, and procedures of the study, and voluntarily comply with study requirements.
Exclusion Criteria:
- Previous allogeneic HSCT for CMML that later relapsed.
- Unwilling or unable to receive the study treatment regimen.
- Active hepatitis B or C, or chronic active hepatitis; known human immunodeficiency virus (HIV) infection.
- Active uncontrolled infection, including: hemodynamic instability related to infection, new or worsening signs/symptoms of infection, new infection lesions on imaging, or persistent fever without explanation despite no symptoms/signs.
- History of stroke or intracranial hemorrhage within 6 months before enrollment.
- Known pregnancy (positive urine pregnancy test), or currently breastfeeding.
- Diagnosis of another malignancy within the past 2 years, except for localized skin cancer, superficial bladder cancer, carcinoma in situ of the cervix, breast cancer, or localized prostate cancer (Gleason score ≤ 6) that has been treated with curative intent.
- Any other condition that, in the investigator's judgment, makes the patient unsuitable for study participation.
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:なし
- 介入モデル:単一グループの割り当て
- 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 |
|---|---|
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実験的:Single Arm: Thiotepa + Busulfan + Fludarabine ± ATG
Patients with intermediate-2 or high-risk chronic myelomonocytic leukemia (CMML) per CPSS/CPSS-mol criteria, who are scheduled to receive allogeneic hematopoietic stem cell transplantation (allo-HSCT) with a thiotepa-containing conditioning regimen.
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Intravenous thiotepa 5 mg/kg/d on days -11,-10; busulfan 3.2 mg/kg/d on days -8,-7,-6; fludarabine 30 mg/m²/d on days -6 to -2; ATG per donor type (haplo/unrelated: 2.5 mg/kg/d days -5 to -2; MSD: 1.125 mg/kg/d days -5 to -2).
Allogeneic stem cells infused on day 0. GVHD prophylaxis: CsA, MMF, MTX per protocol.
他の名前:
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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 |
|---|---|---|
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One-year relapse-free survival (RFS) after allogeneic hematopoietic stem cell transplantation
時間枠:At 12 months after allogeneic hematopoietic stem cell transplantation.
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Time from stem cell infusion to hematologic/extramedullary relapse or death, censored at 12 months for event-free participants.
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At 12 months after allogeneic hematopoietic stem cell transplantation.
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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One-year overall survival (OS)
時間枠:At 12 months after allogeneic hematopoietic stem cell transplantation.
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Overall survival is defined as the time from stem cell infusion to death from any cause.
Participants alive at 12 months are censored at the last follow-up.
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At 12 months after allogeneic hematopoietic stem cell transplantation.
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One-year cumulative incidence of relapse (RR)
時間枠:At 12 months after allogeneic hematopoietic stem cell transplantation.
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Relapse is defined as recurrence of CMML .
Non-relapse mortality is treated as a competing risk.
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At 12 months after allogeneic hematopoietic stem cell transplantation.
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One-year non-relapse mortality (NRM)
時間枠:At 12 months after allogeneic hematopoietic stem cell transplantation.
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Non-relapse mortality is defined as death from any cause other than disease relapse or progression.
Relapse is treated as a competing risk.
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At 12 months after allogeneic hematopoietic stem cell transplantation.
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Regimen toxicity at day +30
時間枠:Up to day +30 post-transplant
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Toxicity is graded according to NCI CTCAE v5.0.
Any grade 3-5 non-hematologic toxicity occurring within 30 days after stem cell infusion is reported.
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Up to day +30 post-transplant
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Incidence and severity of adverse events (AEs)
時間枠:At 12 months after allogeneic hematopoietic stem cell transplantation.
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AEs are coded using MedDRA and graded per NCI CTCAE v5.0.
All AEs, serious AEs (SAEs), and AEs leading to treatment discontinuation are summarized.
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At 12 months after allogeneic hematopoietic stem cell transplantation.
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Incidence and severity of acute graft-versus-host disease (aGVHD)
時間枠:Up to day +100 post-transplant
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Acute GVHD is diagnosed and graded according to the modified Glucksberg criteria or MAGIC criteria.
Both overall incidence and grade II-IV/III-IV severity are reported.
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Up to day +100 post-transplant
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Incidence and severity of chronic graft-versus-host disease (cGVHD)
時間枠:From day +100 up to 1 year post-transplant
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Chronic GVHD is diagnosed and graded according to the NIH consensus criteria (mild, moderate, severe).
Overall incidence and severity distribution are reported.
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From day +100 up to 1 year post-transplant
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協力者と研究者
捜査官
- 主任研究者:Yuqian Sun, MD、Peking University People's Hospital
研究記録日
主要日程の研究
研究開始 (実際)
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
追加の関連 MeSH 用語
その他の研究ID番号
- 2025PHD048-001
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
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
米国で製造され、米国から輸出された製品。
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