IL-23 p19 (IL23A) Drug Discovery Landscape & Assay Solutions

Market Intelligence, Clinical Progress, and High-Purity Reagents for Autoimmune and Inflammatory Disease Therapeutic Development.

TarMart Solution Ecosystem & Related Targets

"Comprehensive reagent toolkit for IL-23 p19 drug discovery. Select your modality below:"

Component / Network Product Description Product Link
Antigen IL-23 p19 (IL23A) Recombinant Protein / IL-23 (p19/p40) Heterodimer
HEK293 expressed, >95% purity, endotoxin <1 EU/ug. Sequence verified.
View IL23A Products
Gene Delivery IL-23 p19 Promise-ORF / Lentivirus
Full-length ORF for stable cell line generation and expression validation.
View IL23A Products
Benchmark Ab Anti-IL-23 p19 Recombinant Antibody
Sequence derived from Guselkumab/Risankizumab. Ideal positive control for binding assays.
View IL23A Products
Validator IL-23 p19 siRNA Set
Target-specific knockdown pool for functional validation.
View IL23A Products
Related Target A IL-23R (IL-23 Receptor)
Essential partner for receptor-binding inhibition assays and signaling studies.
View IL23R Products
Related Target B IL-12B (p40 subunit)
Crucial for counter-screening to ensure p19 subunit specificity over IL-12.
View IL12B Products
Related Target C IL-12 (p35/p40) Heterodimer
Critical for p40 counter-screening to ensure p19 specificity.
View IL-12 Products
Related Target D IL-17A
Downstream effector cytokine in the Th17 pathway.
View IL-17A Products
Critical Assay Challenge The TarMart Advantage (Technical Spec)
Selectivity screening against shared p40 subunit (IL-12) High-purity IL-23 heterodimer and IL-12 heterodimer panels strictly verified by mass spectrometry. Homolog panels (IL-12) available for strict counter-screening.
High-affinity binding validation (SPR/BLI) HEK293 expressed proteins preserving native glycosylation and conformational integrity. Cross-species orthologs (human, mouse, cynomolgus) available for PK/PD.
Lack of standardized controls Sequence-verified clinical benchmark antibodies (Guselkumab/Risankizumab biosimilars) included.
Off-target assay noise / False positives Endotoxin-controlled reagents (<1.0 EU/μg) to prevent non-specific immune cell activation. Validated siRNA included for precise specificity checks.

Live IL-23 p19 R&D Tracker

Market data changes daily. Access the latest global pipeline status directly:

Global Clinical Landscape & Future Outlook

The therapeutic landscape targeting the IL-23 pathway has transitioned from dual IL-12/IL-23 inhibition (targeting the shared p40 subunit, e.g., Ustekinumab) to selective IL-23 p19 inhibition. This selectivity avoids the suppression of IL-12-mediated Th1 pathways, offering a superior safety profile and enhanced efficacy in moderate-to-severe plaque psoriasis, Crohn's disease, and ulcerative colitis. The race for IL-23 p19 therapeutics is intensifying, with major players (AbbVie, J&J, Eli Lilly) dominating the psoriasis space and rapidly expanding into Inflammatory Bowel Disease (IBD). As first-generation blockbusters reach maturity, the next wave of R&D is targeting oral peptide delivery (e.g., JNJ-2113 by Protagonist/J&J), bispecific antibodies addressing dual inflammatory pathways (e.g., IL-23/TNFα, IL-23/IL-17), and highly concentrated subcutaneous formulations for extended dosing intervals. Nanobody/VHH approaches (e.g., MoonLake Immunotherapeutics) also represent an emerging modality with potentially improved tissue penetration.

Competitive Modality & Indication Snapshot

Modality Representative Players Key Indications Critical Assay Need (Why TarMart?)
Monoclonal Antibodies (mAbs) AbbVie (Risankizumab), J&J (Guselkumab), Eli Lilly (Mirikizumab), Sun Pharma (Tildrakizumab) Psoriasis, Crohn's Disease, Ulcerative Colitis High-affinity binding assays (Need native glycosylated HEK293-expressed IL-23 p19). Counter-screening with IL-12 essential.
Oral Peptides / Small Molecules J&J / Protagonist (JNJ-2113) Plaque Psoriasis, IBD Competitive binding assays (Need stable IL-23/IL-23R interaction screening tools and structural fidelity).
Bispecific / Multi-specifics Boehringer Ingelheim, Sanofi, various early-stage Psoriatic Arthritis, Refractory IBD Simultaneous dual-target binding validation (Need cross-reactive IL-23 p19 and partner antigens, e.g., TNFα, IL-17A).
Nanobody / VHH MoonLake Immunotherapeutics Psoriatic Arthritis Epitope mapping (Need specific truncated/mutant proteins for precise domain targeting).

Molecular Differentiation & Assay Strategy

Developing best-in-class IL-23 p19 inhibitors requires rigorous differentiation in the following dimensions:

  • Ultra-high affinity & slow off-rate (pM level) for extended dosing intervals (e.g., every 12 weeks). Assay: SPR/BLI with native IL-23 heterodimer.
  • Strict subunit specificity (p19 vs p40) to avoid IL-12 pathway interference. Assay: Counter-screening ELISA/SPR using IL-12 (p35/p40) and free p40.
  • Subcutaneous formulation stability at high concentrations (>100 mg/mL). Assay: High-concentration viscosity and aggregation tests (SEC-HPLC, DLS).
  • Cross-species reactivity for NHP toxicology and mouse efficacy studies. Assay: Multi-species binding panel (human, cynomolgus, mouse IL-23).