A Phase I Clinical Trial of RS001 in Patients with Relapsed/Refractory B-Cell Malignancies

Trial statusNot yet recruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexAll
Age18-75
SponsorGuangdong Ruishun Biotech Co., Ltd

About this trial

This study is an open-label, single-arm, dose-escalation and dose-expansion study to evaluate the safety, maximum tolerated dose, pharmacokinetic profile in the body after infusion of RS001 injection, and preliminary efficacy in subjects with CD19-positive relapsed/refractory B-cell malignancies (BCM).

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Voluntarily sign an ICF and expect to complete the subsequent follow-up.

Aged 18 to 75 years (including cut-offs), regardless of gender.

. B-cell non-Hodgkin's lymphoma diagnosed as CD19-positive by cytology or histopathology according to WHO 2022 criteria, including pathologically confirmed (1) diffuse large B-cell lymphoma, non-specific type (DLBCL, NOS); (2) follicular lymphoma histopathologically graded as grade 3b (FL3b); (3) follicular lymphoma with diffuse large B-cell transformation; (4) primary mediastinal large B-cell lymphoma (PMBCL); (5) high-grade B-cell lymphoma (HGBCL).

Definition of refractory: No response to second-line or more therapy: The best efficacy of last therapy is PD or SD (SD requires at least 2 cycles of treatment); Recurrence (must have biopsy-proven recurrence) or progression within 12 months of autologous stem cell transplantation (ASCT) . If salvage therapy, no response to last therapy (SD or PD).

Disqualifiers

Other malignancies within 5 years prior to screening, except adequately treated carcinoma in situ of the cervix, basal cell or squamous epithelial cell skin cancer, post-radical localized prostate cancer, post-radical ductal carcinoma in situ, and post-radical thyroid cancer;

Any unstable systemic disease: including but not limited to active infection (other than local infection), unstable angina, cerebrovascular accident or transient ischaemia (within 6 months prior to screening), myocardial infarction (within 6 months prior to screening), myocardial infarction (within 6 months prior to screening), New York Heart Association class III or IV cardiac insufficiency, refractory hypertension (refractory hypertension is defined as blood pressure that has not reached standard after >1 month of reasonably tolerable treatment with ≥3 antihypertensive drugs (including diuretics) at adequate doses based on lifestyle improvement or blood pressure that is not effectively controlled with ≥4 antihypertensive drugs), severe cardiac arrhythmias requiring pharmacologic treatment, hepatic arrhythmias, liver diseases, kidney diseases or metabolic disorders;

Patients with B-cell non-Hodgkin's lymphoma with active central nervous system invasion.

Patients with positive hepatitis B surface antigen (HBsAg) or hepatitis B core antibody (HBcAb) and peripheral blood hepatitis B virus (HBV) DNA titres not within the normal reference range, positive hepatitis C virus (HCV) antibody and peripheral blood HCV RNA ,positive for human immunodeficiency virus (HIV), or positive for cytomegalovirus (CMV) DNA, or positive syphilis test.

Trial design

Design model

Single group

Treatments tested in this trial

  • RS001 injection

    Biological/Vaccine

    CD19-CAR-mbIL15-DNT Cells.

Treatment groups

13 Participants
are divided into 1 treatment group
Group A: RS001 injectionExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Dose-Limiting Toxicity (DLT)

To evaluate the safety, tolerability, and determine the recommended dosage of RS001 for BCM subjects.

Time frame
Up to 28 days
2

Maximum Tolerated Dose (MTD)

MTD is the highest dose for DLT in ≤1/6 subjects.

Time frame
Up to 28 days
3

Incidence of abnormalities

Incidence of abnormalities in AE/SAE/AESI/laboratory tests/electrocardiograms/vital signs.

Time frame
Up to 28 days

Secondary outcomes

1

Pharmacokinetics (PK) indicator (Cmax)

The peak concentration of CD19-CAR-mbIL15-DNT cells amplified in the peripheral blood (Cmax, detected by qPCR or Flow Cytometry).

Time frame
Up to 90 days
2

Pharmacokinetics (PK) indicator (AUC)

CD19-CAR-mbIL15-DNT cells blood concentrations will be measured at different time points to evaluate the area under the curve (AUC). (AUC, detected by qPCR or Flow Cytometry).

Time frame
Up to 90 days
3

Pharmacokinetics (PK) indicator (Tmax)

CD19-CAR-mbIL15-DNT cells blood concentrations will be measured at different time points to evaluate the peak plasma time (Tmax). Tmax is defined as the time to reach the highest concentration (Tmax, detected by qPCR or Flow Cytometry).

Time frame
Up to 90 days
4

Pharmacokinetics (PK) indicator (T1/2)

CD19-CAR-mbIL15-DNT cells blood concentrations will be measured at different time points to evaluate the elimination half-life in hours (T1/2). T1/2 is defined as the time point when the concentration of CD19-CAR-mbIL15-DNT reaches half of maximum in a patient's peripheral blood (T1/2, detected by qPCR or Flow Cytometry).

Time frame
Up to 90 days

Other outcomes

Locations

This trial has no locations.

Sponsors and contacts

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