UB-VV410 in Subjects With Active Refractory Systemic Lupus Erythematosus or Lupus Nephritis

Sponsor
Nanjing IASO Biotechnology Co., Ltd.
Study ID
NCT07109986
Phase
PHASE1
Status
Recruiting
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Conditions

Eligibility Criteria

Sex
ALL
Age
18 Years - 65 Years
Healthy Volunteers
Not accepted

Interventions

  • UB-VV410 — DRUG
    Treatment with single dose of UB-VV410, intravenous injection at Day 1. Note: Subjects may receive retreatment with UB-VV410 if there are preliminary findings suggesting incomplete improvement and acceptable safety.

Study Details

This is an open-label investigator-initiated trial (IIT) to assess the safety, efficacy, and PK（pharmacokinetic）/PD（pharmacodynamics ） of UB-VV410 in adult subjects with clinically active treatment-refractory SLE. The study population will include subjects with active LN (as defined by evidence of active inflammation on renal biopsy, referred to as the LN cohort) and subjects with active SLE without LN (ie, non-LN SLE, referred to as the non-LN cohort). It is expected that the safety profile of UB-VV410 will be similar in subjects with active LN and subjects with active non-LN SLE; thus, dose finding (DF) will be conducted in the 2 subpopulation cohorts combined. Dose expansion (DE) may be conducted separately in the LN and non-LN cohorts to characterize the preliminary efficacy of UB-VV410, as well as its safety and PK/PD, in each subpopulation. The objective of this study is to determine the MTD（maximum tolerated dose）/MAD（maximum administered dose） and the recommended dose for subsequent studies of UB-VV410 in subjects with active LN and in subjects with active non-LN SLE. The DF portion will evaluate the safety profile of UB-VV410 administered at various DLs（dose levels）. The DE portion will further optimize the dose and define the safety profile and preliminary efficacy of UB VV410. The study will use the Bayesian optimal interval (BOIN) design to allocate subjects to various DLs to minimize exposure to subtherapeutic DLs while maintaining appropriate safety parameters. DF will be initiated with UB-VV410 administered IV and starting at DL1. During DF, additional subjects may be backfilled at DLs found to be safe per the BOIN design and with promising activity. After DF of UB-VV410 has been completed, DE with up to 14 subjects per DL within each subpopulation cohort (eg, LN and non-LN cohorts) may be implemented at DLs less than or equal to the MTD/MAD and demonstrating efficacy to further characterize the toxicity, tolerability, PK/PD, and preliminary efficacy of UB-VV410 at the selected DLs. The DE portion will further characterize product safety and preliminary efficacy in order to optimize benefit/risk. The number of DLs for DE will be determined based on the safety, activity and PK/PD data observed from DF. In addition, some subjects may receive retreatment with UB-VV410 if there are preliminary findings suggesting incomplete improvement and acceptable safety.

Key Dates

First listed
Aug 7, 2025
Start date
Oct 27, 2025
Status verified
Jan 2026
Primary completion
May 8, 2028
Completion
Jul 8, 2030

Study Design

Enrollment
21 participants (estimated)
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT

Arms

  • Experimental: UB-VV410（treatment group）
    Interventions: UB-VV410. Subjects will be consented and screened. Once subject eligibility is confirmed, the Investigator will be notified which dose the subject is assigned to receive. Eligible subjects will receive UB-VV410 at the assigned DL（dose level） on Study Day 1 (Day 1). Dose-limiting toxicities (DLTs) will be assessed for 28 days after UB-VV410 treatment. Safety will be assessed throughout the study. SLE/LN disease activity will be evaluated at approximately 1, 2, 3, 6, 9, 12, 18, and 24 months following UB VV410 administration.

Primary Outcome Measure

Number of participants with adverse events as assessed by CTCAE（Common Terminology Criteria for Adverse Events） v5.0 [ Time Frame: up to 24 months after UB-VV410 infusion ]

Central Contacts

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