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A Clinical Study of B007 in the Treatment of Generalized Myasthenia Gravis.

Phase 2
Recruiting
Conditions
Generalized Myasthenia Gravis
Interventions
Drug: Placebo
Registration Number
NCT06447597
Lead Sponsor
Shanghai Jiaolian Drug Research and Development Co., Ltd
Brief Summary

The purpose of this study is to evaluate the efficacy and safety of B007 in subjects with generalized myasthenia gravis.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
104
Inclusion Criteria
  1. Sign informed consent form;
  2. Subjects with generalized myasthenia gravis;
  3. Serum AchR(Acetylcholine receptor)-Ab or MUSK-Ab was positive during screening;
  4. MG-ADL ≥5 at screening and baseline;
  5. Before randomization, subjects received at least one gMG stable dose of SoC, and maintain a stable dose throughout the test;
  6. Subjects agree to use effective contraceptive methods for contraception from signing the informed consent form to 1 year after the last dose. Female subjects considered fertile by the investigator must have negative serum pregnancy tests before the first dose.
Exclusion Criteria
  1. Subjects with MGFA I and V type;
  2. Subjects usingprescribed drugs;
  3. Subjects with a prescribed disease or history of disease;
  4. The subjects has prescribed examination abnormalities that are assessed as unsuitable for participation in the study by the investigator;
  5. Known history of severe allergic reaction to humanized monoclonal antibodies, or known allergy to any component of B007;
  6. Subjects who received live vaccine at the specified time before the first dose and are expected to receive the vaccine at the specified time after the last dose;
  7. Subjects who have received major surgery or participated in other clinical trials within the prescribed time before screening;
  8. Pregnant and lactating women;
  9. Fertile female subjects do not agree to use effective contraception from signing the informed consent form to 1 years after the last dose.
  10. Sexually active male subjects who do not intend to use an effective contraceptive method during the trial period or within1 years after the last dose, or male subjects who plan to donate sperm during the trial or within 1 year after the last dose;
  11. A history of alcohol or drug abuse within the past 12 months;
  12. Other conditions deemed unsuitable for participation in this study by the researchers.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
PlaceboPlacebo-
B007B007-
Primary Outcome Measures
NameTimeMethod
Proportion of subjects:MG-ADL(Myasthenia gravis-activities of daily living profile) decreased by ≥2Approximately 16 weeks

Proportion of subjects:MG-ADL decreased by ≥2

Secondary Outcome Measures
NameTimeMethod
Proportion of subjects:subjects without SoC(Standard of Care) change and MG-ADL decreased by ≥2Approximately 24 weeks

Proportion of subjects:subjects without SoC change and MG-ADL decreased by ≥2

Proportion of subjects:subjects without SoC change and QMG(Quantitative Myasthenia Gravis score) decreased by ≥3Approximately 24 weeks

Proportion of subjects:subjects without SoC change and QMG decreased by ≥3

Changes in MGQoL15r (Myasthenia gravis quality of life15-item revised) from baseline.Approximately 24 weeks

Changes in MGQoL15r from baseline.

Changes in MGC (Myasthenia gravis composite) from baseline.Approximately 24 weeks

Changes in MGC from baseline

Incidence of Treatment-Emergent Adverse EventsApproximately 1 years

Adverse event type, incidence, duration

Trial Locations

Locations (2)

Xiangya Hospital Central South University

🇨🇳

Changsha, China

Huashan Hospital, Fudan University

🇨🇳

Shanghai, China

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