Baricent 2

 

Drug Characteristics

  • Generic Name: Baricitinib
  • Drug Class: Oral small-molecule Janus kinase (JAK) inhibitor
  • Primary Targets: JAK1 and JAK2

Key Features:

  • Has immunomodulatory effects, controlling inflammation by blocking cytokine signaling pathways.
  • First JAK inhibitor granted Emergency Use Authorization (EUA) by the FDA for severe COVID-19 treatment.
  • Demonstrates efficacy in autoimmune diseases and virus-related inflammatory responses.

 

Indications:

Approved Indications:

Moderate-to-severe active rheumatoid arthritis (RA)

  • For adults with inadequate response to one or more disease-modifying antirheumatic drugs (DMARDs).

Severe Alopecia Areata (AA)

  • Approved by the FDA in 2022; first systemic treatment approved for this condition.

 

Mechanism of Action

Baricitinib is a dual JAK1/JAK2 inhibitor. It works by blocking the JAK-STAT signaling pathway, thereby inhibiting multiple cytokine signals, including:

  • IL-6
  • IFN-γ
  • GM-CSF
  • And others

Therapeutic Effects:

  • Suppresses overactivation of the immune system
  • Reduces inflammation
  • Minimizes immune-mediated tissue damage

 

Dosage and Administration

Indication Recommended Dose
Rheumatoid Arthritis (RA) 2 mg once daily; 4 mg for patients with severe symptoms
Severe Alopecia Areata 2 mg or 4 mg once daily (depending on weight/severity)
COVID-19 (hospitalized) 4 mg once daily for up to 14 days or until hospital discharge
 
 
Market and Future Prospects

Global Market Overview:

  • RA and alopecia markets are mature; Baricitinib competes with tofacitinib, upadacitinib, and other JAK inhibitors.
  • Its global recognition rose significantly due to its role in COVID-19 management.
  • Approved in China, US, EU, Japan, South Korea, and included in national healthcare systems and clinical guidelines.

Future Development Potential:

   Ongoing research for use in:

  • Systemic Lupus Erythematosus (SLE)
  • Atopic Dermatitis
  • Psoriatic Arthritis
  • Myositis

  Potential to expand into:

  • Sjögren’s Syndrome
  • Inflammatory Bowel Disease (IBD)
  • Graft-versus-Host Disease (GVHD)