COMPANY RESEARCH

Protagonist

The discovery and collaboration partner for ICOTYDE. Its website also lists PN-881 (oral IL-17A/F) and other early oral programs; the company is recorded separately from J&J.

Company at a glance

Corporate information

Company entity
Protagonist Therapeutics, Inc.(U.S.-listed parent company)
Headquarters / principal office
Newark, California, USACorporate website explicitly identifies headquarters; location follows the retrieved disclosure. ↗
Founded
2006 ↗
Ownership / capital status
Publicly tradedPublicly traded ↗
Official corporate reference
https://www.protagonist-inc.com/ ↗
LinkedIn company page
LinkedIn ↗ ↗

Profile review: 2026-11-04 · Fields retain their individual source dates. Undisclosed values are not zero; early or historical events do not establish the latest financing. Awards and acquisitions are distinguished from equity rounds.

Disease tags match recorded text mentions and require program-level verification.

Technology, programs & evidence

The discovery and collaboration partner for ICOTYDE. Its website also lists PN-881 (oral IL-17A/F) and other early oral programs; the company is recorded separately from J&J.

2026-10-14: Icotrokinra Phase 2 ulcerative colitis publication details responses and testing limits

Program / serviceTarget / indicationRepresentative stageEvidence & scope
icotrokinraIL-23R · Plaque psoriasisApprovedHuman evidence supporting approval
PN-881IL-17A/F · PsoriasisPhase 1Quantitative human results not confirmed in this review

Related news & literature

Company-name matches are discovery leads; verify entity identity and transaction roles in the original source.

No cataloged update explicitly mentions this company.

Same-field reading (not company-specific)
AJMC

Enlicitide reports address durability and baseline cardiovascular risk

Ahead of the AHA meeting, an original report reviewed enlicitide analyses across PREVENT cardiovascular risk groups and an open-label extension. LDL cholesterol reductions were broadly consistent across risk categories and persisted through Week 104. The extension selected participants who had tolerated and adhered to treatment and lacked a control group, limiting generalization of its long-term findings.

Aurinia / SEC

Aurinia reports $232.4 million in nine-month LUPKYNIS net product sales

Aurinia reported LUPKYNIS net product sales of $232.4 million for the nine months ended September 30, 2026, up 18%, including $79.4 million in the third quarter, up 12%. Total company revenue also includes licensing, collaboration, and royalty income. These are commercialization results for an approved oral cyclic peptide, rather than a new indication approval or clinical endpoint readout.

Acta Pharmaceutica Sinica B

New review maps evidence standards for orally active peptides

A new review connects peptide structure, formulation, screening, and pharmacokinetic testing in an evidence-based framework for oral drug discovery. It distinguishes architecture-led libraries, oral optimization of existing hits, and hybrid approaches. The scope includes cyclic and noncyclic peptides; the proposed framework organizes development evidence rather than demonstrating a new therapy or clinical benefit.

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Sources & open questions

  • The latest initiation status and complete data for PN-881 require verification. Subcutaneous peptide evidence must not be treated as oral evidence.
  1. ICOTYDE 药物试验概览 ↗U.S. FDA · Approval date: 2026-03-17
  2. ICOTYDE 获批及研发合作背景 ↗Johnson & Johnson · 2026-03-18
  3. Protagonist 口服产品与项目管线 ↗Protagonist · Undated
  4. Icotrokinra Phase 2 ulcerative colitis publication details responses and testing limits ↗New England Journal of Medicine / Johnson & Johnson · 2026-10-14
  5. 2017 Form 10-K ↗Protagonist / SEC · 2018
  6. Protagonist company page ↗Protagonist / LinkedIn · Not stated
  7. Protagonist Therapeutics Inc. ↗Protagonist Therapeutics, Inc.(U.S.-listed parent company) · Accessed 2026-11-04; undated unless stated
  8. Official company contact / corporate location disclosure ↗Protagonist · Checked 2026-11-04; source publication date retained where stated

Inclusion is not endorsement or partner qualification. Assess company claims, clinical evidence, and project-specific capabilities separately.

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