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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)
Johnson & Johnson (PR Newswire)

Icotrokinra meets Phase 3 joint-response endpoint in biologic-naive psoriatic arthritis

Johnson & Johnson reported that 58% of patients receiving icotrokinra 200 mg achieved ACR20 at Week 16 in ICONIC-PsA 1, versus 41% with placebo. The oral IL-23 receptor peptide also showed skin responses. The company reported no new safety signals through Week 24; active psoriatic arthritis remains an investigational indication.

Entera Bio investor filing

Adjacent oral-peptide field: Entera reports $265.9 million cash as EB613 Phase 3 preparations continue

Entera reported $265.9 million in cash and cash equivalents at September 30, plus $6.5 million in restricted cash. Its November 6 update targets first site activation for an approximately 900-patient EB613 osteoporosis Phase 3 trial in late 2026. EB613 is an oral PTH(1-34) program, included here as an adjacent oral-peptide delivery development, not a cyclic-peptide candidate.

Johnson & Johnson

ICONIC-ASCEND reports icotrokinra noninferiority to ustekinumab in plaque psoriasis

Johnson & Johnson reported that ICONIC-ASCEND met its Week 16 co-primary endpoints: PASI 90 responses were 55.2% with icotrokinra versus 3.6% with placebo, and IGA 0/1 responses were 70.4% versus 9.5%. At Week 28, the oral peptide met noninferiority criteria versus ustekinumab across multiplicity-controlled key secondary skin-clearance endpoints.

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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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