- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT07721480
Gene Therapy for Patients With Transfusion-Dependent β-Thalassemia
An Open Label Study Evaluating the Safety and Efficacy of HGI-001 Injection in Patients With Transfusion-Dependent β-Thalassemia
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
This is a single-arm, open-label, single-dose, single site study in approximately 6 subjects ≥12 and ≤45 years of age with TDT. Subjects must have TDT with a transfusion history of at least 100mL/kg/year of packed red blood cells (pRBCs) or 8 transfusions of pRBCs per year in the past 2 years before enrollment.
Stage 1: Screening to determine eligibility for treatment: Subjects with previously known β0/β0 or non-β0/β0 genotypes are eligible for screening.
Stage 2: Autologous CD34+ cell collection, HGI-001 Injection manufacture and disposition: Each subject will undergo HSC mobilization with a granulocyte-colony stimulating factor (G-CSF) and plerixafor. Peripheral blood mononuclear cells (PBMCs) will be collected by apheresis. A total of 2 mobilization cycles may be performed if needed and each mobilization cycle may include up to 3 days for apheresis.
Stage 3: Myeloablative conditioning and infusion of HGI-001 Injection (Day 0)
: the subject will undergo myeloablative conditioning with busulfan. After completion of the 4-day course of busulfan, there must be a minimum of 48 hours of washout period before administration of HGI-001 Injection. On study Day 0, after thawing, the HGI-001 Injection will be administered via intravenous (IV) infusion at a dose of >4.0 × 106 CD34+ cells/kg.
Stage 4: Follow-up, through engraftment and up to 12 months after HGI-001 Infusion: Subjects will be followed up daily in the transplant unit for adverse events (AEs), and laboratory parameters will be followed up to monitor bone marrow engraftment. The subject will be discharged from the transplant unit once the subject is considered clinically stable.
The goal during the follow-up period is to maintain hemoglobin (Hb) ≥9 g/dL. Transfusions should be avoided for patients with Hb ≥9 g/dL, unless the transfusion need is medically justified (e.g., as a pre-requirement for surgery).
Tipo di studio
Iscrizione (Stimato)
Fase
- Fase 2
Contatti e Sedi
Contatto studio
- Nome: Chi Kong Li, MBBS MD
- Numero di telefono: +85235051019
- Email: ckli@cuhk.edu.hk
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
- Bambino
- Adulto
Accetta volontari sani
Descrizione
Inclusion Criteria:
- Subjects between 12 and 45 years of age at the time of consent and are able to provide written informed consent.
- Diagnosis of TDT, also known as β-thalassemia major, without genotype restriction, and a valid test report can be provided.
- A history of at least 100 mL/kg/year of pRBCs transfusion or ≥ 8 transfusions of pRBCs per year for previous 2 years.
- Sufficient blood transfusion for at least 3 months before screening (transfusion records can be provided), and Hb is maintained ≥9.0 g/dL before each transfusion.
- The level of ferritin <5000ng/mL; Cardiac magnetic resonance imaging (MRI) T2 and liver MRI T2 findings suggest iron overload at a moderate level or below.
- Clinically stable, and eligible for autologous hematopoietic stem cell transplant (auto-HSCT).
- Adequate organ function for the conditioning with busulfan.
Exclusion Criteria:
- Uncorrected bleeding disorder;
- Uncontrolled epilepsy or mental disorders;
- Received hydroxyurea, ruxolitinib, decitabine, or cytarabine within 3 months prior to enrollment;
- Usage of psychoactive substance, drug, or alcohol abuse within six months prior to screening.
- Pulmonary hypertension without effective intervention.
- Persistent toxicity (≥ CTCAE grade 2) induced by previous treatment.
- Positive for anti-RBC antibodies.
- Positive for hepatitis B surface antigen (HBsAg) and HBV DNA copy number > upper limit of normal (ULN) (HBV DNA test not required for patients negative for HBsAg), positive for hepatitis C virus (HCV) antibody, unless HCV RNA is negative (HCV RNA-negative subjects are not excluded), positive human immunodeficiency virus (HIV), or positive for Treponema pallidum antibody (TP-Ab) (subjects who are positive for the antibody due to vaccination can be enrolled).
- Has or has had malignant tumors or myeloproliferative disease or immunodeficiency disease;
- Clinically significant and active bacterial, viral, fungal, or parasitic infection.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: N / A
- Modello interventistico: Assegnazione di gruppo singolo
- Mascheramento: Nessuno (etichetta aperta)
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Sperimentale: single arm study of gene therapy
gene therapy product will be used to correct the genetic defect of thalassemia major
|
HGI-001 Injection is the transduction of autologous CD34+ HSPCs by the lentiviral vector, named LentiHBBT87Q
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
achieve transfusion independence (TI)for at least ≥12 months after HGI-001 Injection infusion
Lasso di tempo: 12 month after injection of study drug
|
Subjects achieve transfusion independence (TI), which is defined as a weighted average Hb ≥9 g/dL without any pRBC transfusions at any time for a continuous period of ≥12 months during the study after HGI-001 Injection infusion
|
12 month after injection of study drug
|
Collaboratori e investigatori
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Inizio studio (Stimato)
Completamento primario (Stimato)
Completamento dello studio (Stimato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- CREC2025.659
Piano per i dati dei singoli partecipanti (IPD)
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Descrizione del piano IPD
Periodo di condivisione IPD
Criteri di accesso alla condivisione IPD
Tipo di informazioni di supporto alla condivisione IPD
- ICF
Informazioni su farmaci e dispositivi, documenti di studio
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Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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