MedPath

Zilucoplan

Generic Name
Zilucoplan
Brand Names
Zilbrysq
Drug Type
Small Molecule
Chemical Formula
C172H278N24O55
CAS Number
1841136-73-9
Unique Ingredient Identifier
YG391PK0CC
Background

Zilucoplan is a 15 amino-acid, synthetic macrocyclic peptide. It is a complement inhibitor that works to prevent the activation of C5, which is a complement protein involved in the innate immune system to initiate inflammatory responses. In October 2023, zilucoplan gained its first FDA approval for the treatment of generalized myasthenia gravis.

Indication

Zilucoplan is indicated for the treatment of generalized myasthenia gravis (gMG) in adult patients who are anti-acetylcholine receptor (AChR) antibody-positive.

Associated Conditions
Generalized Myasthenia Gravis

Inozyme's INZ-701 Shows Promise in ENPP1 Deficiency Trial with Sustained Phosphate Increases

• Interim data from Inozyme Pharma's ENERGY 3 pivotal trial demonstrates INZ-701's potential to modify disease course in pediatric ENPP1 Deficiency patients, with sustained phosphate increases and favorable safety profile. • The trial is progressing well with no patient dropouts, dose adjustments, or discontinuations, and remains on track for topline data in Q1 2026, positioning INZ-701 to potentially become the first approved therapy for this rare disease. • Inozyme has appointed Petra Duda, M.D., Ph.D. as Chief Medical Officer, bringing over two decades of expertise in rare disease clinical development as the company advances toward late-stage development milestones.

Eculizumab Shows Promise in Treating Thymoma-Associated Myasthenia Gravis

• A real-world study demonstrates that eculizumab significantly reduces Myasthenia Gravis Activities of Daily Living (MG-ADL) scores in patients with thymoma-associated myasthenia gravis. • The research indicates a substantial decrease in the need for corticosteroids among patients treated with eculizumab by week 12. • Clinically meaningful improvements were observed in 81.8% of patients, with initial benefits appearing within an average of 1.7 weeks after starting eculizumab. • The study suggests eculizumab is a safe and effective treatment option for this severe myasthenia gravis subtype, warranting further investigation through larger randomized controlled trials.

Nipocalimab Receives FDA Priority Review for Generalized Myasthenia Gravis Treatment

• The FDA granted Priority Review to nipocalimab for treating gMG in antibody-positive patients, expediting its potential availability to patients. • Phase 3 Vivacity-MG3 study results supported the application, demonstrating sustained disease control and significant MG-ADL score reduction. • Nipocalimab, a monoclonal antibody, aims to reduce IgG autoantibodies, addressing the underlying cause of gMG without broad immunosuppression. • Johnson & Johnson also submitted a Marketing Authorisation Application to the EMA, seeking approval of nipocalimab in gMG in Europe.

VYVDURA Approved in Japan for Chronic Inflammatory Demyelinating Polyneuropathy

• Japan's MHLW has approved VYVDURA (efgartigimod alfa and hyaluronidase-qvfc) for treating adults with Chronic Inflammatory Demyelinating Polyneuropathy (CIDP). • VYVDURA is the first and only neonatal Fc receptor (FcRn) blocker approved for CIDP treatment, administered as a weekly subcutaneous injection. • The approval is based on the ADHERE study, which demonstrated a 61% reduction in relapse risk compared to placebo (p<0.0001) and clinical improvement in 69% of patients. • This approval expands treatment options for CIDP patients in Japan, offering a convenient at-home self-injection alternative.

UCB Pharma Eyes Further Expansion in South Korea Following Recent Drug Approvals

• UCB Pharma aims to expand its portfolio in South Korea after securing approvals for Bimzelx (bimekizumab) for plaque psoriasis and Zilbrysq (zilucoplan) for myasthenia gravis. • Fintepla (fenfluramine) is under review for Dravet syndrome and Lennox-Gastaut syndrome, potentially receiving expedited approval via the GIFT program. • Rystiggo (rozanolixizumab), a monoclonal antibody for myasthenia gravis, may also see accelerated approval if designated under Korea’s GIFT program. • Bimzelx is poised to compete in the plaque psoriasis market, showing superior efficacy in trials against Humira, Stelara, and Cosentyx.

Inebilizumab Shows Promise in Myasthenia Gravis, Phase 3 Data Suggests

• Phase 3 MINT trial data indicates inebilizumab significantly improves Myasthenia Gravis Activities of Daily Living (MG-ADL) scores compared to placebo. • The study included patients with both anti-acetylcholine receptor (AChR) and muscle-specific tyrosine kinase (MuSK) antibody-positive generalized myasthenia gravis (gMG). • Amgen is planning regulatory submissions for inebilizumab as a potential new treatment option for generalized myasthenia gravis (gMG). • Ongoing trials are exploring new therapeutic approaches, including bispecific nanoantibodies and complement inhibitors, to address unmet needs in gMG treatment.

J&J's Nipocalimab Shows Promise in Treating Autoimmune Diseases

Johnson & Johnson reports positive outcomes for its experimental drug nipocalimab in treating two autoimmune diseases, Sjögren's disease and generalized myasthenia gravis (gMG), highlighting its potential as a blockbuster therapy.
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