About this trial
This is a single-arm, open-label, dose-escalation, prospective exploratory clinical study intended to evaluate the safety, efficacy and cellular pharmacokinetics of GT737 cells in adult patients with relapsed/refractory acute myeloid leukemia (AML).
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
1. Voluntarily participate in this clinical study, fully understand the study content, sign the informed consent form, and be willing to comply with all study procedures and complete all follow-up visits.
2. Aged between 18 and 75 years old (inclusive), with no restriction on gender.
Relapsed disease: Relapse after achieving complete remission (CR) or complete remission with incomplete hematologic recovery (CRi) following standard induction chemotherapy;
Refractory disease: a) Failure to achieve CR/CRi after 2 cycles of induction chemotherapy; b) Relapse within 12 months of first remission with no response to subsequent re-treatment; c) Relapse after autologous or allogeneic hematopoietic stem cell transplantation; d) Failure to achieve CR/CRi after at least two lines of salvage therapy.
Disqualifiers
1. Prior history of central nervous system (CNS) leukemia; or intracranial magnetic resonance imaging (MRI)/PET-CT at screening suggestive of CNS leukemia; or malignant cells identified in cerebrospinal fluid (CSF).
2. Other untreated malignant neoplasms diagnosed within the past 5 years or concurrent malignancies (Exceptions: adequately treated cervical carcinoma in situ, localized cutaneous squamous cell carcinoma, basal cell carcinoma, localized prostate cancer, ductal carcinoma in situ of the breast, urothelial carcinoma ≤T1; participants with prostate cancer under active surveillance are eligible).
3. Prior receipt of CD33- or CD70-targeted cellular therapies including CAR-T, NK or iNKT cells (Excluding subjects previously treated with GT737 who qualify for re-treatment).
4. Systemic corticosteroids administered within 7 days prior to cell infusion (Exceptions: inhaled corticosteroids and subjects with prior allogeneic transplantation history).
Trial design
Single group
Treatments tested in this trial
GT737 Injection
Biological/VaccineGT737 Injection
Treatment groups
Trial outcomes
Primary outcomes
Proportion of participants experiencing dose limiting toxicity
The proportion of participants with dose-limiting toxicity (DLT) occurring within 28 days after infusion
Adverse Events (AEs) occurring after infusion and their proportions
Adverse Events (AEs) occurring after infusion and their proportions
Severity of Adverse Events (AEs) after infusion
Assess the severity of Adverse Events (AEs) within 28 days after infusion
Compare the differences in safety and tolerability between different treatment subgroups (monotherapy and combination with sirolimus).
Difference in the incidence and severity of DLT among different treatment subgroups (monotherapy and combination with sirolimus)
Secondary outcomes
Pharmacokinetic parameters: Time to peak expansion (Tmax)after GT737 infusion
Monitor the time to peak expansion (Tmax)after GT737 infusion.
Pharmacokinetic parameters: peak expansion(Cmax) after GT737 infusion
Monitor the peak expansion(Cmax) after GT737 infusion.
Pharmacokinetic parameters: area under the curve (AUC) after GT737 infusion
Monitor the area under the curve (AUC) after GT737 infusion.
Pharmacokinetic parameters: survival duration after GT737 infusion
Monitor the survival duration after GT737 infusion.
Sponsors and contacts
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Grit Biotechnology
Lead sponsor
Shenzhen People's Hospital
Collaborator
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