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Clinical Trials List

Protocol NumberDNTH103-MG-201
NCT Number(ClinicalTrials.gov Identfier)NCT06282159
Completed

2025-02-01 - 2027-12-31

Phase II

Recruiting7

Study ended1

A Phase 2, Randomized, Blinded, Placebo-Controlled, Study to Evaluate Safety, Tolerability, Pharmacometrics, and Efficacy of DNTH103 in Adults with Generalized Myasthenia Gravis (MAGIC)

  • Trial Applicant

    CMIC Asia-Pacific

  • Sponsor

    CMIC ASIA-PACIFIC, PTE. LTD., TAIWAN BRANCH (SINGAPORE)

  • Trial scale

    Multi-Regional Multi-Center

  • Update

    2026/02/01

Investigators and Locations

Principal Investigator 施景森 Division of Neurology

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator 葉建宏 Division of Neurology

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator 楊富吉 Division of Neurology

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator 蔡乃文 Division of Neurology

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator Yi-Chun Lee Division of Neurology

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator Yuh-Cherng Guo Division of Neurology

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator 陳彥中 Division of Neurology

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Recruiting

Principal Investigator Long-Sun Ro

Co-Principal Investigator

The Actual Total Number of Participants Enrolled

0 Study ended

Condition/Disease

Myasthenia Gravis, Generalized

Objectives

The purpose of this Phase 2 study is to evaluate the safety, tolerability, pharmacometrics, and efficacy of DNTH103 in participants with generalized myasthenia gravis (gMG).

Test Drug

DNTH103

Active Ingredient

Human Immunoglobulin G

Dosage Form

solution for infusion or injection

Dosage

150 mg/mL

Endpoints

Incidence of Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (SAEs)

Inclution Criteria

Inclusion Criteria:
1. Must have given written informed consent before any study-related activities are carried out.
2. Adult males and females, 18 to 75 years of age (inclusive) at Screening.
3. Weight range between 40-120 kg at Screening.
4. Diagnosis of gMG by the following tests:
Acetylcholine receptor antibody (AChR Ab) positive, and
One of the following:
i. History of abnormal neuromuscular transmission test; ii. History of positive anticholinesterase test; iii. Clinical response to acetylcholinesterase inhibitors.
5. Myasthenia Gravis Foundation of America (MGFA) Class II-Iva
6. Myasthenia Gravis Activities of Daily Living (MG-ADL) score of 6 or more
7. Vaccination against N. meningitidis with the quadrivalent meningococcal vaccine, and where available, meningococcal serotype B vaccine within 3 years prior to, or at the time of, initiating study drug.
8. Female participants must:
Be of non-childbearing potential, or if of childbearing potential, must agree not to donate ova, not to attempt to become pregnant and, if engaging in sexual intercourse with a male partner, must agree to use a highly effective method of contraception.
9. Male participants must be surgically sterile for at least 90 days prior to screening or agree not to donate sperm

Exclusion Criteria

Exclusion Criteria:
1. History or presence of significant medical/surgical condition including any acute illness or major surgery considered to be clinically significant
2. Prior history (at any time) of N. meningitidis infection.
3. Positive test results for active human immunodeficiency virus (HIV-1 or HIV-2), hepatitis B surface antigen (HBsAg), or hepatitis C virus (HCV) antibodies during Screening.
4. Any thymic surgery/biopsy within 1 year of Screening.
5. Any known or untreated thymoma.
6. Any history of thymic carcinoma or thymic malignancy.
7. Concurrent or previous use of the following medication within the time periods specified below.
1. Rituximab within 6 months (180 days) prior to randomization (Day 1);
2. Intravenous immunoglobulin (IVIg) and plasma exchange (PLEX) within 4 weeks (28 days) prior to randomization (Day 1).
8. Participation in another clinical study of an investigational drug within 90 days or 5 half-lives of the investigational agent.

The Estimated Number of Participants

  • Taiwan

    20 participants

  • Global

    60 participants