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A Study of MIL62 in Treatment of CD20 Positive B-cell Lymphomas

A Multi-Center, Open Label, Single Arm, Multiple Dose Study to Assess the Tolerability,Pharmacokinetics and Efficacy of MIL62 in Chinese Patients With Relapsed/Refractory CD20+ Malignant B-cell Lymphomas

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04103905
Enrollment
27
Registered
2019-09-26
Start date
2017-02-10
Completion date
2020-05-29
Last updated
2025-05-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

CD20-positive B Cell Non-Hodgkin Lymphoma

Brief summary

This open-label, multicenter,dose-escalating phase I study was designed to evaluate the safety, tolerability, pharmacokinetics and efficacy of MIL62 in Chinese patients with relapsed/refractory CD20-positive B-cell non-Hodgkin lymphoma(NHL) for whom no treatment of higher priority was available.

Interventions

The patients confirming to the eligibility criteria will be assigned to the 5 dose groups (200mg, 400mg, 800mg, 1000mg, and 1500mg, respectively) based on the sequence of inclusion. Each patient received an intravenous infusion of MIL62 on Days 1, 8, and 15 of Cycle 1 and on Day 1 of Cycles 2-8 for a maximum of 8 cycles and 10 infusions. Each cycle was 21 days.

Sponsors

Beijing Mabworks Biotech Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Adult patients, \>=18 years of age; 2. Diagnosis of Refractory/relapsed CD20+ B-cell lymphoma or B-CLL 3. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 4. Life expectancy \>6 months 5. Females of childbearing potential (FCBP) must agree to use two reliable forms of contraception simultaneously or to practice complete abstinence from heterosexual contact during the following time periods related to this study: 1) for at least 28 days before starting study drug; 2) while participating in the study; 3) dose interruptions; and 4) for at least 2 months after discontinuation of all study treatments 6. Able and willing to provide written informed consent and to comply with the study protocol

Exclusion criteria

1. Prior use of any investigational antibody therapy within 3 months of study start 2. Prior use of any anti-cancer vaccine 3. Prior administration of radioimmunotherapy 3 months prior to study entry 4. Central nervous system lymphoma 5. History of other malignancy 6. Evidence of significant, uncontrolled concomitant disease 7. Abnormal laboratory values 8. Patients with progressive multifocalleukoencephalopathy (PML) 9. Infection with human immunodeficiency virus (HIV), hepatitis B or hepatitis C(including HBsAg,HBcAb positive with abnormal HBV DAN or HCV RNA ) 10. Known severe allergic reaction or/and infusion reaction to monoclonal antibody.

Design outcomes

Primary

MeasureTime frame
Percentage of Participants Who Experienced a Dose-limiting Toxicity in Dose Escalation Period of the StudyBaseline to 28 days after the first infusion of MIL62 of the last participant in dose escalation period

Secondary

MeasureTime frame
Maximum Observed Plasma Concentration (Cmax) Under Steady State of MIL62by the end of Cycle 4 (each cycle is 28 days)
Area Under the Plasma Concentration Versus Time Curve (AUC) of MIL62 Under Steady Stateby the end of Cycle 4 (each cycle is 28 days)
Systemic Clearance of MIL62 Under Steady Stateby the end of Cycle 4 (each cycle is 28 days)
Volume of Distribution Under Steady State (Vss) of MIL62by the end of Cycle 4 (each cycle is 28 days)
Terminal Plasma Half-Life (t1/2) of MIL62 Under Steady Stateby the end of Cycle 4 (each cycle is 28 days)
Change in Cluster of Differentiation 19 (CD19+) B Cellsby the end of Cycle 4 (each cycle is 28 days)
Percentage of Participants With Best Overall Responseby the end of Cycle 8 (each cycle is 28 days)
Percentage of Participants with Positive Anti-Drug Antibodies to MIL62by the end of Cycle 4 (each cycle is 28 days)
Progression-free Survival (PFS) in the Studyby the end of the follow-up period of the study
Overall Survival (OS) in the Studyby the end of the follow-up period of the study
Duration of response (DoR)by the end of the follow-up period of the study
Disease control rate (DCR)by the end of the follow-up period of the study
Participants With Event-Free Survival (EFS)by the end of the follow-up period of the study
Change in Cluster of Differentiation 20 (CD20+) B Cellsby the end of Cycle 4 (each cycle is 28 days)

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 7, 2026