NCT05145361

Brief Summary

The objectives of this phase Ib study are to evaluate the efficacy, safety, pharmacokinetics, pharmacodynamics and immunogenic profiles of B001 in subjects with aquaporin-4 antibody (AQP4-IgG) positive NMOSD.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
45

participants targeted

Target at P50-P75 for early_phase_1

Timeline
7mo left

Started Apr 2022

Longer than P75 for early_phase_1

Geographic Reach
1 country

4 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress87%
Apr 2022Dec 2026

First Submitted

Initial submission to the registry

November 21, 2021

Completed
15 days until next milestone

First Posted

Study publicly available on registry

December 6, 2021

Completed
4 months until next milestone

Study Start

First participant enrolled

April 7, 2022

Completed
4.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 15, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 15, 2026

Last Updated

May 5, 2026

Status Verified

August 1, 2025

Enrollment Period

4.7 years

First QC Date

November 21, 2021

Last Update Submit

April 29, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Dose-limiting toxicity (DLT)

    Measurement of DLT in all subjects.

    Up to 18 days.

  • Evaluate incidence of treatment-emergent adverse events [Safety and Tolerability].

    Up to 1 year

Secondary Outcomes (16)

  • Maximum serum concentration (Cmax) of B001.

    Through study completion, up to 2 years

  • Time of maximum serum concentration (Tmax) of B001.

    Through study completion, up to 2 years

  • Area under the serum concentration-time curve (AUC) of the Dosing Interval (0-14D) of B001.

    Through study completion, up to 2 years

  • Area under the serum concentration-time curve (AUC) of the Dosing Interval (0-Last) of B001.

    Through study completion, up to 2 years

  • Area under the serum concentration-time curve (AUC) of the Dosing Interval (0-infinity) of B001.

    Through study completion, up to 2 years

  • +11 more secondary outcomes

Study Arms (2)

B001 injection

EXPERIMENTAL

Subjects randomized to this arm will receive B001 twice, at day 1 and day 15, up to the end of the study.

Drug: B001 injection

Placebo

PLACEBO COMPARATOR

Subjects randomized to this arm will receive Placebo twice, at day 1 and day 15, up to the end of the study.

Biological: Placebo

Interventions

B001 injection 50mg/5mL Intravenous solution

B001 injection
PlaceboBIOLOGICAL

Placebo 5mL Intravenous solution

Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • NMOSD as defined by either of the following 2015 criteria with anti-AQP4 antibody (Ab) seropositive status at screening
  • Clinical evidence of at least 1 documented relapse in last 12 months prior to screening
  • Expanded Disability Status Scale (EDSS) score from 0 to 7.5 inclusive at screening
  • Age 18 to 70 years, inclusive at the time of informed consent

You may not qualify if:

  • Any previous treatment with anti-CD20, eculizumab, anti-BLyS monoclonal antibody (e.g., belimumab), any other treatment for prevention of multiple sclerosis (MS) relapse (e.g., interferon, natalizumab, glatiramer acetate, fingolimod, teriflunomide or dimethyl fumarate) within 6 months prior to baseline.
  • Received immunosuppression such as azathioprine, mycophenolate mofetil, methotrexate, cyclophosphamide, tacrolimus, mitoxantrone, cyclosporine A, etc, and rug therapy, biological agents such as satralizumab, tocilizumab, eculizumab, etc, 3 months prior to the first administration.
  • Evidence of serious uncontrolled concomitant diseases that may preclude participant participation, as described; Other nervous system disease, cardiovascular disease, hematologic/hematopoiesis disease, respiratory disease, muscular disease, endocrine disease, renal/urologic disease, digestive system disease, congenital or acquired severe immunodeficiency.
  • Known active infection within 3 months prior to baseline
  • Pregnancy or lactation.
  • History of severe allergic reaction to a biologic agent
  • Evidence of chronic active hepatitis B or C
  • Evidence of active tuberculosis
  • Following laboratory abnormalities at screening\*:
  • White blood cells (WBC) \<4.0 x10\^3/microliter (μL)
  • Absolute neutrophil count (ANC)
  • Absolute lymphocyte count \<0.5 x10\^3/μL
  • Platelet count \<80 x 10\^9/ L
  • Aspartate aminotransferase (AST) or alanine aminotransferase
  • History of drug or alcohol abuse within 6 months prior to baseline
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

Beijing Tiantan Hospital Capital Medical University

Beijing, Beijing Municipality, 100050, China

RECRUITING

First Hospital of Shanxi Medical University

Taiyuan, Shanxi, 030001, China

RECRUITING

Tangdu hospital,fourth military medical university

Xi’an, Shanxi, 710038, China

RECRUITING

Tianjin Medical University General Hospital

Tianjin, Tianjin Municipality, 300052, China

RECRUITING

Related Publications (1)

  • Jia D, Wang H, Jiang W, Shen Y, Guo J, Zhao D, Zhang M, Meng H, Xue H, Song Y, Yao Q, Xie N, Zhang C. A novel recombinant anti-cluster of differentiation 20 humanized monoclonal antibody (B001) for the treatment of neuromyelitis optica spectrum disorder: a phase 1, multicenter randomized, double-blind trial. Front Immunol. 2026 Apr 16;17:1676908. doi: 10.3389/fimmu.2026.1676908. eCollection 2026.

MeSH Terms

Conditions

Neuromyelitis Optica

Condition Hierarchy (Ancestors)

Myelitis, TransverseDemyelinating Autoimmune Diseases, CNSAutoimmune Diseases of the Nervous SystemNervous System DiseasesOptic NeuritisOptic Nerve DiseasesCranial Nerve DiseasesDemyelinating DiseasesEye DiseasesAutoimmune DiseasesImmune System Diseases

Study Officials

  • Fu-Dong Shi, MD,PhD

    Tianjin Medical University General Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Fu-Dong Shi, MD,PhD

CONTACT

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 21, 2021

First Posted

December 6, 2021

Study Start

April 7, 2022

Primary Completion (Estimated)

December 15, 2026

Study Completion (Estimated)

December 15, 2026

Last Updated

May 5, 2026

Record last verified: 2025-08

Locations