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A Safety, Tolerability, Pharmacokinetics and Efficacy Study of GB261 in B-Cell NHL and CLL.

A Phase Ⅰ/Ⅱ, Open-Label, Multicenter Study Evaluating the Safety, Tolerability, Pharmacokinetics and Efficacy of GB261 in Patients With Relapsed or Refractory B-Cell Non-Hodgkin Lymphoma and Chronic Lymphocytic Leukemia

Status
UNKNOWN
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04923048
Enrollment
460
Registered
2021-06-11
Start date
2021-08-31
Completion date
2025-06-28
Last updated
2023-05-22

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

Conditions

B Cell NHL, CLL

Keywords

B cell NHL, Phase 1/2,GB261,bispecific antibody,CD20/CD3

Brief summary

This is a Phase 1/2 study of GB261 in participants with relapsed or refractory B-cell NHL and CLL. The study will consist of a dose-escalation stage(Phase 1), an expansion stage(Phase 2a) and Phase 2b stage where participants will be enrolled into indication-specific cohorts.

Interventions

BIOLOGICALGB261

Drug:GB261 IV, participants with B-cell NHL or CLL will receive GB261 via IV infusion weekly for the first two cycles(1cycle=21days), followed by Q3W from C3 and afterwards in given doses until progression disease or other situations specified in the protocol, whichever comes earlier.

Sponsors

Genor Biopharma 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. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 2. CD20+ B-cell Non-Hodgkin Lymphoma or CLL who have relapsed or failed to respond to at least one prior treatment regimen and for whom there is no available therapy expected to improve survival 3. Adequate hepatic, hematologic, and renal function

Exclusion criteria

1. Burkitt lymphoma, lymphoplasmacytic lymphoma or B lymphoblastic leukemia 2. Prior treatment with systemic anti-lymphoma therapy within 4 weeks or five half-lives of the drug (which is shorter) prior to the first GB261 infusion 3. History of auto-SCT or CAR-T therapy in the past 180 days and/or with any of protocol specified conditions 4. Prior allo-SCT or allogeneic CAR-T 5. Prior solid organ transplantation 6. Autoimmune disease with the exceptions specified in the protocol 7. History of central nervous system(CNS) lymphoma or other CNS disease 8. Significant cardiovascular or pulmonary disease 9. Hepatitis B or C or human immunodeficiency virus (HIV) 10. Pregnant or lactating or intending to become pregnant during the study

Design outcomes

Primary

MeasureTime frame
Maximum Tolerated DoseDuring Cycle 1 (up to 21 days)
Dose Limiting ToxicityDuring Cycle 1 (up to 21 days)
Percentage of participants with adverse eventsFrom first dosing until 90 days after the last treatment
Objective Response RateThrough study completion, an average of 3 years

Secondary

MeasureTime frame
ClearanceAt predefined intervals up to 106 days
VzAt predefined intervals up to 106 days
Anti-Drug AntibodyAt predefined intervals up to 3 years
CmaxAt predefined intervals up to 106 days
Duration of Objective ResponseThrough study completion, an average of 3 years
Duration of Objective Complete ResponseThrough study completion, an average of 3 years
Overall SurvivalThrough study completion, an average of 3 years
Progression Free SurvivalThrough study completion, an average of 3 years
TmaxAt predefined intervals up to 106 days
Area Under the CurveAt predefined intervals up to 106 days
t1/2At predefined intervals up to 106 days

Countries

Australia

Contacts

Primary ContactXiao Yu, MD
shawn.yu@genorbio.com021-60751991

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 8, 2026