Stem Cell Mobilization and Apheresis for Life-threatening Blood Disorders
The purpose of this study is to investigate mobilization and collection of HSPCs in patients with bone marrow failure syndromes (BMFS) using granulocyte-colony stimulating factor (otherwise known as Filgrastim) with plerixafor to demonstrate safety and feasibility of collecting HSPCs to advance gene therapy.
Primary objective:
- To characterize the safety of Filgrastim plus plerixafor in participants with bone marrow failure syndromes as determined by the incidence of adverse events (AEs).
Secondary Objectives:
- To characterize the feasibility of HSPC mobilization using Filgrastim plus plerixafor as determined by peripheral blood CD34+ counts.
- To measure the mobilization effects of Filgrastim plus plerixafor in the peripheral blood in participants as determined by peak peripheral blood CD34+ counts.
- To estimate efficacy of Filgrastim plus plerixafor for HSPC mobilization and apheresis collection in participants as determined by the yield of CD34+ cells (CD34+ cells/kg).
調査の概要
詳細な説明
研究の種類
入学 (推定)
段階
- フェーズ 1
連絡先と場所
研究連絡先
- 名前:Alexis Leonard, MD
- 電話番号:888-226-4343
- メール:referralinfo@stjude.org
研究場所
-
-
Tennessee
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Memphis、Tennessee、アメリカ、38105-2794
- Saint Jude Children's Research Hospital
-
コンタクト:
- Alexis Leonard, MD
- 電話番号:888-226-4343
- メール:referralinfo@stjude.org
-
-
参加基準
適格基準
就学可能な年齢
- 大人
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Participants with a bone marrow failure syndrome with an identified genetic cause willing to donate autologous HSPCs for advancing gene therapy
- Age ≥ 18 years - 25 years
The following hematological parameters need to be met (regardless of transfusion or growth factor support)
- Hb > 8 g/dL
- ANC > 500/mm3
- Platelet > 30,000/mm3
- Bone marrow evaluation within the preceding 6 months prior to mobilization and apheresis
- Participants should either have a central venous catheter (CVC) in place, be able to undergo apheresis without requiring a CVC, or agree to having a temporary apheresis catheter placed
- Karnofsky score >80
- Negative serologic tests for syphilis, hepatitis B and C, HIV, and HTLV-1/II
- Female participants of childbearing age should have a negative serum pregnancy test within one week of beginning Filgrastim and plerixafor administration
Exclusion Criteria:
- Participant with sickle cell disease
- Participant who has had a prior autologous or allogeneic HSCT
- Active viral, bacterial, fungal, or parasitic infection
- Total bilirubin >2.5x ULN or transaminases >5x ULN
- Moderate or severe renal failure defined as serum/plasma creatinine >1.5 mg/dL and an estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73 m2 based on the CKD-Epi equation or the St. Jude equation
- Diagnosis of MDS or other hematologic malignancy
- History of malignancy
- Known allergy to or contraindication for Filgrastim or plerixafor administration, or medications routinely administered during apheresis
- Splenomegaly (size greater than upper limit of normal on examination)
- Any disease or concomitant process that is not compatible with the study as per investigator opinion
- Concomitant treatment with alternative investigational agent or participation in another clinical trial with an investigational drug within 5 half-lives of the investigational agent
- Unwillingness to use a highly effective method of contraception for 1 month after plerixafor or GCSF
- Pregnancy
- Inability or unwillingness of research participant to give written informed consent.
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:他の
- 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 |
|---|---|
|
実験的:BDSTEM Treatment
Participants in this study will receive a twice daily dose of Filgrastim (GCSF) (5 mcg/kg BID) SQ starting on day 1 for 5 days followed by a single dose of SQ plerixafor (0.24 mg/kg) on day 5 followed by collection of CD34+ HSPCs via apheresis. A portion of cells collected from the participant will be stored as backup to be used toward future gene therapy endeavors. The remaining cells will be donated for research studies |
Administered twice daily dose starting on day 1 for 5 days.
Administered on day 5 via IV.
Peripheral venous access or through a central venous catheter approximately 4-5 hours after the dose of plerixafor is given.
|
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 of treatment-emergent adverse events following filgrastim plus plerixafor administration
時間枠:From initiation of drug administration through Day +7 to +10 follow-up
|
Safety will be assessed by the incidence, type, and severity of adverse events occurring after administration of filgrastim plus plerixafor in participants with bone marrow failure syndromes.
|
From initiation of drug administration through Day +7 to +10 follow-up
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Number of participants achieving peripheral blood CD34+ counts ≥5 cells/µL
時間枠:From initiation of plerixafor administration through completion of apheresis, or 6 hours after drug administration if apheresis is not performed
|
Feasibility of hematopoietic stem and progenitor cell mobilization will be assessed by peripheral blood CD34+ cell counts measured after plerixafor administration and prior to or during apheresis.
|
From initiation of plerixafor administration through completion of apheresis, or 6 hours after drug administration if apheresis is not performed
|
|
Peripheral blood CD34+ kinetics following filgrastim plus plerixafor administration
時間枠:After plerixafor administration through completion of apheresis, or 6 hours after drug administration if apheresis is not performed
|
Peripheral blood CD34+ cell counts will be measured after plerixafor administration and prior to or during apheresis.
|
After plerixafor administration through completion of apheresis, or 6 hours after drug administration if apheresis is not performed
|
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Observed CD34+ cell yield after 1 blood volume apheresis
時間枠:At completion of 1 blood volume apheresis on Day 5
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CD34+ cell yield (CD34+ cells/kg) collected after processing 1 blood volume during apheresis following filgrastim plus plerixafor administration.
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At completion of 1 blood volume apheresis on Day 5
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|
Estimated total CD34+ cell yield from projected full-volume apheresis
時間枠:At completion of 1 blood volume apheresis on Day 5
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Estimated total CD34+ cell yield (CD34+ cells/kg) projected from the observed yield after processing 1 blood volume during apheresis.
|
At completion of 1 blood volume apheresis on Day 5
|
協力者と研究者
捜査官
- 主任研究者:Alexis Leonard, MD、St. Jude Children's Research Hospital
出版物と役立つリンク
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
追加の関連 MeSH 用語
その他の研究ID番号
- BDSTEM
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
IPD 共有時間枠
IPD 共有アクセス基準
IPD 共有サポート情報タイプ
- STUDY_PROTOCOL
- SAP
- ICF
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
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