A Phase I/II Clinical Trial of LBL-034 in Patients With Relapsed Refractory Multiple Myeloma

Phase 1

Recruiting

• Conditions: Relapsed/Refractory Multiple Myeloma
• Interventions: Drug: LBL-034 for Injection

• Registration Number: NCT06049290
• Lead Sponsor: Nanjing Leads Biolabs Co.,Ltd

Brief Summary

This is a single-arm, open-label, multicenter, dose-escalation, and dose-expansion phase I/II clinical study to evaluate the safety, tolerability, pharmacokinetics, immunogenicity, and efficacy of LBL-034 in patients with Relapsed/Refractory Multiple Myeloma (R/R MM).

Detailed Description

A multicenter, open-label, phase I/II clinical study to evaluate the safety, tolerability, pharmacokinetics, and efficacy of LBL-034 in patients with relapsed/refractory multiple myeloma.

This trial includes two parts: phase I and phase IIa study.

The dose escalation and dose expansion studies for LBL-034 will be conducted in the phase I study to evaluate safety, tolerability and determine RP2D.

The efficacy of LBL-034 in the treatment of R/R MM and R/R leukaemia plasmacytic (plasma cell leukemia, PCL) will be evaluated in Phase IIa study.Phase IIa clinical study will be conducted after obtaining the RP2D.Determine the specific dosing regimen in Phase IIa based on the safety, PK and other data from Phase I clinical studies.Phase IIa clinical study includes 4 cohorts.This trial requires collection of biological samples from all subjects for relevant testing.

This clinical trial will enroll 342 patients in Phase I and Phase IIa studies.

Study Timeline

• Study First Submitted: 2023-09-15
• Study First Submitted QC: 2023-09-15
• Study First Posted: 2023-09-22
• Study Start: 2023-10-20
• Status Verified: 2025-05
• Last Update Submitted: 2025-05-28
• Last Update Posted: 2025-06-03
• Primary Completion: 2026-10-20
• Study Completion: 2027-05-20

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 342

Inclusion Criteria

1. Agree to follow the trial treatment regimen and visit schedule, voluntarily enroll in the study, and sign the written informed consent form;
2. Age ≥ 18 years at the time of signing the informed consent;
3. Eastern Cooperative Oncology Group (ECOG) Performance Status Scale≤ 1；
4. Documentation of initial diagnosis of multiple myeloma according to IMWG diagnostic criteria；
5. Have a life expectancy of at least 12 weeks；
6. Fertile men and women of childbearing age are willing to take effective contraceptive measures (including abstinence, intrauterine devices, hormonal contraception, and correct use of condoms) from the signing of the informed consent form to 6 months after the last dose of the investigational drug; women of childbearing age include premenopausal women and women who had menopause less than two years ago. Blood pregnancy test results must be negative for women of childbearing age within 7 days prior to the initial dose of the investigational drug.

Exclusion Criteria

1. Subjects who underwent major organ surgery (excluding needle biopsy) or significant trauma within 4 weeks prior to the initial use of the investigational drug,or require elective surgery during the trial period;
2. Use of immunomodulatory drugs within 14 days prior to the initial use of the investigational drug, including but not limited to thymosin, interleukin-2, and interferon；
3. Systemic use of corticosteroids or other immunosuppressants within 14 days prior to the initial use of the investigational drug;The following conditions are excluded: Treatment with topical, ocular, intra-articular, intranasal, and inhaled corticosteroids; short-term use of glucocorticoids for preventive therapy (e.g., to prevent contrast allergy);
4. Patients with active hepatitis B or C；
5. Subjects with an active infection that currently requires intravenous anti infective therapy;
6. The patient has a Medical history of immunodeficiency, including HIV antibody positive;
7. Women during pregnancy or lactation;
8. The investigator believes that the subject has other conditions that may affect compliance or are not suitable for participating in this study.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
LBL-034	LBL-034 for Injection	LBL-034 for Injection; Initial dose - MTD; Q2W

Primary Outcome Measures

Name	Time	Method
Objective Response Rate (ORR)	From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (30 days after drug withdrawal or before the start of new anti-tumor therapy).	ORR \[including the rates of Strin-gent complete response(sCR),complete response (CR) ,Very good partial response(VGPR),and partial response (PR)\], evaluated based on the 2016 IMWG criteria(Cohorts 1, 2, and 3) and 2013 IMWG criteria(Cohort 4), refers to the percentage of study subjects who achieve a complete response or partial response. It was used to evaluate the efficacy of LBL-034 in Phase IIa study .
Dose-limiting toxicities（DLT）	The DLT observation period starts from the first dose until 4 weeks after the full dose first administration (including the step-up dosing period, if any).	DLT describes side effects of a drug or other treatment that are serious enough to prevent an increase in dose or level of that treatment.DLT is defined as toxicity (possible adverse events related to LBL-034) during the DLT observation period . It was used to evaluate the safety of LBL-034 in Phase I study .
Maximum tolerated dose (MTD)	The MTD observation period starts from the first dose until 4 weeks after the full dose first administration (including the step-up dosing period, if any).	MTD is defined as the hightest dose level at which no more than 1 out of 6 subjects experiences a DLT during the first cycles. It was used to evaluate the tolerability in Phase I.

Secondary Outcome Measures

Name	Time	Method
Cmax	From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (30 days after drug withdrawal or before the start of new anti-tumor therapy)	Maximum drug concentration in plasma after administration.
Tmax	From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (30 days after drug withdrawal or before the start of new anti-tumor therapy)	After administration,Time to reach maximum drug concentration in plasma.
Immunogenicity	From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (30 days after drug withdrawal or before the start of new anti-tumor therapy)	The immunogenicity is evaluated by the incidence of anti-drug antibodies (ADA) and neutralizing antibodies (if applicable) in subjects.Immunogenicity refers to the performance that can elicit an immune response.
Minimal Residual Disease (MRD)	From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (30 days after drug withdrawal or before the start of new anti-tumor therapy)	MRD-negative rate: Refers to the percentage of subjects who achieve MRD negativity at any time point after the initial dose and before disease progression or the initiation of a new anti-tumor therapy.
Duration of Response(DOR）	From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (30 days after drug withdrawal or before the start of new anti-tumor therapy)	DOR is defined as the duration from earliest date of disease response (CR、PR 、iCR or iPR) until earliest date of disease progression or death from any cause(if occurring sooner than progression).
sBCMA	From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (30 days after drug withdrawal or before the start of new anti-tumor therapy)	serum B-cell maturation antigen(Detect the change of sBCMA in serum)

Trial Locations

Locations (20)

The First Affiliated Hospital of Wannan Medical College; 🇨🇳 Wuhu, Anhui, China

Peking University People's Hospital; 🇨🇳 Beijing, Beijing, China

Peking University Shougang Hospital; 🇨🇳 Beijing, Beijing, China

Fujian Medical University Union Hospital; 🇨🇳 Fuzhou, Fujian, China

The First Affiliated Hospital of Xiamen University; 🇨🇳 Xiamen, Fujian, China

Sun Yat-sen University Cancer Center; 🇨🇳 Guangzhou, Guangdong, China

Shenzhen Second People's Hospital; 🇨🇳 Shenzhen, Guangdong, China

The Afliliated Hospital of Guizhou Medical Univeristy; 🇨🇳 Guiyang, Guizhou, China

The Second Affiliated Hospital of Hainan Medical University; 🇨🇳 Haikou, Hainan, China

The First Affiliated Hospital Zhejiang University School of Medicine; 🇨🇳 Hangzhou, Hangzhou, China

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