Claudin 4 (CLDN4) Drug Discovery Landscape & Assay Solutions

Market Intelligence, Clinical Progress, and High-Purity Reagents for Tight Junction Target Development.

TarMart Solution Ecosystem & Related Targets

"Comprehensive reagent toolkit for CLDN4 drug discovery. Select your modality below:"

Component / Network Product Description Product Link
Antigen CLDN4 ECL1-Fc Fusion Protein
High purity (>95%), Endotoxin <1EU/ug. Sequence Verified. HEK293 Expressed.
View CLDN4 Products
Gene Delivery CLDN4 Promise-ORF / Lentivirus
Full-length ORF for stable cell line generation. Preserves native 4-pass transmembrane conformation.
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Benchmark Ab Anti-CLDN4 Recombinant Antibody
Recombinant positive control derived from clinical benchmark sequences.
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Validator CLDN4 siRNA Set
For target knockdown and specificity verification in cell-based assays.
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Related Target A CLDN3
High homology counter-screening antigen to avoid off-target toxicity.
View CLDN3 Products
Related Target B CLDN6
Oncofetal tight junction protein; crucial for selectivity profiling.
View CLDN6 Products
Related Target C CLDN18.2
Lineage-matched gastric cancer target for comparative therapeutic mapping.
View CLDN18.2 Products
Critical Assay Challenge The TarMart Advantage (Technical Spec)
CLDN3/CLDN9 Subfamily Cross-Reactivity Sequence-verified ECL1 and ECL2 recombinant proteins of CLDN3/4/6/9 for precise selectivity ELISA.
Conformational Epitope Loss in Soluble Formats High-titer Lentivirus Premade Particles for stable cell line generation, enabling flow cytometry and cell-based binding.
Lack of Controls Clinical Benchmark Antibodies (Biosimilars) sequence-verified and HEK293 expressed.
False Positives In vitro validated siRNA pool included for target-specific validation.

Live CLDN4 R&D Tracker

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

Global Clinical Landscape & Future Outlook

The race for CLDN4 therapeutics is intensifying, with major players shifting focus from traditional mAbs to T-cell engagers (TCEs) and Antibody-Drug Conjugates (ADCs). As first-generation therapies reach the clinic, the next wave of R&D is targeting highly selective epitopes to bypass systemic toxicity caused by cross-reactivity with normal tissue-expressed Claudins.

Competitive Modality & Indication Snapshot

Modality Representative Players Key Indications Critical Assay Need (Why TarMart?)
Bispecific / TCE Zymeworks, Amgen Ovarian Cancer, Pancreatic Cancer Selectivity Screening (Need CLDN3/CLDN4/CLDN9 homolog panel)
ADC Mersana Therapeutics Solid Tumors, Gastric Cancer Internalization Assay (Need Lentivirus-driven stable cell lines)
Monoclonal Ab Academic / Biotech Consortia Colorectal Cancer Epitope Mapping (Need ECL1 vs ECL2 recombinant constructs)