Monoclonal Antibody-Based Therapies for AQP4-Positive NMOSD

September 5, 2025 updated by: Daishi Tian, Tongji Hospital

A Registry Study on Monoclonal Antibody-Based Therapies for Aquaporin-4 Antibody-Positive Neuromyelitis Optica Spectrum Disorders

The primary objective of this registry study is to evaluate the therapeutic efficacy and safety profiles of distinct monoclonal antibody-based therapies for aquaporin-4 immunoglobulin G-seropositive neuromyelitis optica spectrum disorders within the Chinese population under real-world clinical conditions. Secondary objectives include quantitative assessment of longitudinal neuroimaging biomarker variations and immunological profile alterations in longitudinal biological specimens pre- and post-therapeutic intervention.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
200

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Hubei
      • Wuhan, Hubei, China, 430030
        • Recruiting
        • Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Confirmed diagnosis of aquaporin-4 immunoglobulin G (AQP4-IgG)-seropositive neuromyelitis optica spectrum disorders (NMOSD) per the 2015 International Consensus Diagnostic Criteria, with serological or cerebrospinal fluid verification of AQP4-IgG positivity for inclusion in the AQP4-NMOSD cohort.

Description

Inclusion Criteria:

  • Subjects must demonstrate capacity to comprehend the study's objectives and associated risks, provide written informed consent, and authorize utilization of confidential health information in compliance with national and regional data protection regulations.
  • Enrollment is permitted regardless of biological sex, with age ≥18 and ≤65 years (inclusive) at the time of informed consent provision.
  • All females of childbearing potential and biologically male participants must employ contraceptive measures meeting clinical trial standards throughout the study duration and for at least 30 days following the final administration of investigational therapy. Additionally, participants must abstain from gamete donation during the study period and for ≥30 days post-treatment cessation.
  • Confirmed diagnosis of aquaporin-4 immunoglobulin G (AQP4-IgG)-seropositive neuromyelitis optica spectrum disorders (NMOSD) per the 2015 International Consensus Diagnostic Criteria, with serological or cerebrospinal fluid verification of AQP4-IgG positivity for inclusion in the AQP4-NMOSD cohort. Participants must have provided documented consent for therapeutic intervention with one monoclonal antibody-based biologics.
  • Neurological examination demonstrating clinical stability within 30 days preceding baseline (Visit 1).

Exclusion Criteria:

  • Medical History and Current Health Status

    1. Clinically significant medical history of cardiac, endocrine, hematologic, hepatic, immune, infectious, metabolic, renal, pulmonary, neurological, dermatologic, psychiatric, or other major systemic conditions that, in the investigator's judgment, would preclude safe trial participation.
    2. Prior cerebrovascular events resulting in a baseline modified Rankin Scale (mRS) score >3.
    3. Hypersensitivity to the investigational therapeutic agent(s) or their excipients.

  • Infection Risk

    1. Documented history or positive screening test for human immunodeficiency virus (HIV).
    2. Active hepatitis C virus (HCV) infection, defined as detectable HCV RNA with concomitant anti-HCV antibody positivity. Subjects with anti-HCV antibody positivity and undetectable HCV RNA remain eligible.
    3. Active hepatitis B virus (HBV) infection, defined as hepatitis B surface antigen (HBsAg) positivity and/or total hepatitis B core antibody (anti-HBc) positivity. Subjects with prior natural infection (HBsAg-negative, anti-HBc-positive, and anti-HBs-positive) or vaccination-induced immunity (HBsAg-negative, anti-HBc-negative, and anti-HBs-positive) are eligible.
    4. Chronic, recurrent, or severe infections (e.g., pneumonitis, sepsis) within 90 days prior to baseline (Visit 1).
    5. History of active tuberculosis (TB) or latent TB infection, defined by positive interferon-gamma release assay (IGRA) results or two consecutive tuberculin skin tests.
    6. Active bacterial, fungal, or viral infections (including upper respiratory tract infections) within 28 days prior to baseline. Subjects with localized fungal infections (e.g., candidiasis, dermatophytosis) may undergo re-screening post-treatment.
    7. Contraindications to rescue therapies, including rituximab, intravenous immunoglobulin (IVIG), high-dose corticosteroids, or cyclophosphamide.
    8. Prior exposure to total lymphoid irradiation, cladribine, T-cell or T-cell receptor vaccination, total body irradiation, or hematopoietic stem cell transplantation at any time.

  • Additional Exclusion Criteria

    1. Clinically significant suicidal ideation or behavior within the past 12 months, as assessed by the Columbia-Suicide Severity Rating Scale (C-SSRS).
    2. Unwillingness or inability to comply with protocol-mandated procedures.
    3. Severe auditory/visual impairment, language barriers, claustrophobia, or other conditions precluding neuropsychological assessments or MRI completion.
    4. Any other condition deemed by the investigator or sponsor to compromise subject eligibility or study integrity.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Inebilizumab treatment
AQP4-IgG positive NMOSD Patient who received Inebilizumab
Drug: Mab Therapy
Whether receive mab therapy or not.
Satralizumab treatment
AQP4-IgG positive NMOSD Patient who received Satralizumab
Drug: Mab Therapy
Whether receive mab therapy or not.
Eculizumab treatment
AQP4-IgG positive NMOSD Patient who received Eculizumab
Drug: Mab Therapy
Whether receive mab therapy or not.
Ofatumumab treatment
AQP4-IgG positive NMOSD Patient who received Ofatumumab
Drug: Mab Therapy
Whether receive mab therapy or not.
Rituximab treatment
AQP4-IgG positive NMOSD Patient who received Rituximab
Drug: Mab Therapy
Whether receive mab therapy or not.
Conventional immunosuppressive agents treatment
AQP4-IgG positive NMOSD Patient who received Conventional immunosuppressive agents

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Time to first relapse
Time Frame: Up to 96 weeks
Up to 96 weeks
Median time to relapse
Time Frame: Up to 96 weeks
Up to 96 weeks
Annualized relapse rate
Time Frame: Up to 96 weeks
Up to 96 weeks
EDSS score
Time Frame: Up to 96 weeks
Up to 96 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Incidence of radiologically identified new gadolinium-enhancing lesions and/or new or enlarging T2-weighted lesions
Time Frame: Up to 96 weeks
Up to 96 weeks
AQP4-IgG titer in serum and cerebral spinal fluid
Time Frame: Up to 96 weeks
Up to 96 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Tongji Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 1, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 30, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 13, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 13, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 20, 2025

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 8, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 5, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • MabInNMOSD

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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