Efficacy and Safety of MegaLT Injection for Platelet Recovery After Umbilical Cord Blood Transplantation
Study of the Efficacy and Safety of MegaLT Injection for Promoting Platelet Recovery After Umbilical Cord Blood Transplantation
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Descrizione dettagliata
Tipo di studio
Tipo di studio
Iscrizione (Stimato)
Iscrizione
Fase
Fase
- Prima fase 1
Contatti e Sedi
Contatto studio
Contatto studio
- Nome: Xiaoyu Zhu, MD, PhD
- Numero di telefono: +86-551-62282931
- Email: xiaoyuz@ustc.edu.cn
Backup dei contatti dello studio
- Nome: Aijie Huang, MD
- Email: huangaijie@mail.ustc.edu.cn
Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
- Adulto
- Adulto più anziano
Accetta volontari sani
Descrizione
Inclusion Criteria:
- Age ≥18 years, male or female.
- Patients with a definite diagnosis of hematologic malignancy who are undergoing umbilical cord blood transplantation.
- Patients at day 14 after umbilical cord blood transplantation.
- ECOG performance status ≤2.
- Patients who voluntarily agree to participate in this clinical trial, fully understand the study content, and sign the informed consent form.
Exclusion Criteria:
- Patients with relapse of any malignant tumor.
- Pregnant or lactating women.
- Patients with severe infection or severe cardiac, hepatic, pulmonary, renal, neurologic, or metabolic disease.
- Patients with a history of severe thrombotic events or known risk factors for thrombosis. Exception: participants for whom the investigator determines that the potential benefit of study participation outweighs the potential risk of thromboembolic events.
- Patients with uncontrolled infectious disease or other serious diseases, including but not limited to infection such as HIV positivity, congestive heart failure, unstable angina, cardiac arrhythmia, psychosis, social circumstances that would limit compliance with study requirements, or any condition that the treating physician considers may pose unpredictable risks.
- Patients with active hepatitis B or hepatitis C.
- Patients who have previously received organ transplantation or are planning to receive organ transplantation, except for hematopoietic stem cell transplantation.
- Patients who participated in another clinical study and used any investigational drug or device within 30 days before the baseline visit. Participation in observational studies is allowed.
- Patients considered by the investigator to be unsuitable for participation in this clinical trial for any other reason.
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)
Numero di armi
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
|---|---|
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Sperimentale: MegaLT Injection
Participants will receive MegaLT Injection by intravenous infusion on day 14 after umbilical cord blood transplantation.
Dose escalation will proceed sequentially from 1×10^6/kg to 2.5×10^6/kg.
Each participant will receive one assigned cell dose; multiple infusions may be considered if necessary according to the protocol.
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MegaLT Injection is prepared from eligible umbilical cord blood cells through directed expansion and quality control to obtain a megakaryocyte cell product.
Participants will receive MegaLT Injection by intravenous infusion on day 14 after umbilical cord blood transplantation.
The assigned dose will be 1×10^6/kg or 2.5×10^6/kg, with sequential dose escalation from the low-dose level to the high-dose level.
Each participant will receive one assigned cell dose; multiple infusions may be considered if necessary according to the protocol.
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Time to Platelet Engraftment
Lasso di tempo: From umbilical cord blood transplantation until documented platelet engraftment or the participant's last platelet assessment, assessed up to 6 months following MegaLT infusion.
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Platelet engraftment is defined as the first day of 7 consecutive days with platelet count ≥20×10^9/L without platelet transfusion.
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From umbilical cord blood transplantation until documented platelet engraftment or the participant's last platelet assessment, assessed up to 6 months following MegaLT infusion.
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Platelet Engraftment by Day 28
Lasso di tempo: At day 28 after umbilical cord blood transplantation
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Cumulative incidence of platelet engraftment by day 28 after transplantation, defined as 7 consecutive days with platelet count ≥20×10^9/L without platelet transfusion.
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At day 28 after umbilical cord blood transplantation
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Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Platelet Recovery by Day 28
Lasso di tempo: At day 28 after umbilical cord blood transplantation
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Cumulative rate of platelet recovery by day 28 after transplantation, defined as platelet count ≥50×10^9/L for 7 consecutive days without platelet transfusion.
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At day 28 after umbilical cord blood transplantation
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Time to Platelet Count Thresholds
Lasso di tempo: From umbilical cord blood transplantation until documented platelet count recovery at each threshold or the participant's last platelet assessment, assessed up to 6 months following MegaLT infusion.
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Median time to achieve platelet counts of ≥20×10^9/L, ≥50×10^9/L, and ≥100×10^9/L without platelet transfusion.
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From umbilical cord blood transplantation until documented platelet count recovery at each threshold or the participant's last platelet assessment, assessed up to 6 months following MegaLT infusion.
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Platelet Transfusion Volume
Lasso di tempo: From MegaLT Injection to 4 weeks after injection
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Total amount of platelet transfusion received by participants within 4 weeks after MegaLT Injection.
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From MegaLT Injection to 4 weeks after injection
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Neutrophil Engraftment by Day 28
Lasso di tempo: At day 28 after umbilical cord blood transplantation
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Cumulative incidence of neutrophil engraftment by day 28 after transplantation, defined as an absolute neutrophil count ≥0.5×10^9/L for 3 consecutive days.
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At day 28 after umbilical cord blood transplantation
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Megakaryocyte Level in Bone Marrow
Lasso di tempo: At 4 weeks after MegaLT Injection
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Megakaryocyte level assessed by bone marrow smear 4 weeks after MegaLT Injection.
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At 4 weeks after MegaLT Injection
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Altre misure di risultato
Altre misure di risultato
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Adverse Events
Lasso di tempo: From MegaLT Injection to 6 months after injection
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Incidence of adverse events after MegaLT Injection, including clinical symptoms and laboratory abnormalities.
Adverse events will be assessed according to the Common Terminology Criteria for Adverse Events version 5.0 when applicable.
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From MegaLT Injection to 6 months after injection
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Bleeding Events
Lasso di tempo: From MegaLT Injection to 6 months after injection
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Incidence of bleeding events after MegaLT Injection, assessed using the WHO bleeding assessment scale.
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From MegaLT Injection to 6 months after injection
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Transplant-Related Complications and Mortality
Lasso di tempo: From umbilical cord blood transplantation to 100 days after transplantation
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Incidence of transplant-related complications and transplant-related mortality within 100 days after umbilical cord blood transplantation.
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From umbilical cord blood transplantation to 100 days after transplantation
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Graft-Versus-Host Disease
Lasso di tempo: From MegaLT Injection to 6 months after injection
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Incidence and severity of acute graft-versus-host disease and chronic graft-versus-host disease after MegaLT Injection.
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From MegaLT Injection to 6 months after injection
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Severe GVHD-Free, Relapse-Free Survival
Lasso di tempo: From MegaLT Injection to 6 months after injection
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Survival without severe graft-versus-host disease or relapse after MegaLT Injection.
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From MegaLT Injection to 6 months after injection
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Thromboembolic Events
Lasso di tempo: From MegaLT Injection to 6 months after injection
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Incidence and severity of thromboembolic events after MegaLT Injection, including deep vein thrombosis and pulmonary embolism.
Relevant indicators such as D-dimer will be dynamically monitored.
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From MegaLT Injection to 6 months after injection
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Collaboratori e investigatori
Sponsor
Sponsor
Studiare le date dei record
Studia le date principali
Inizio studio (Stimato)
Inizio studio
Completamento primario (Stimato)
Completamento primario
Completamento dello studio (Stimato)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- MegaLT-2026
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