COMPANY RESEARCH

Ironwood Pharmaceuticals

LINZESS (linaclotide) is an oral peptide with multiple disulfide bonds and a GC-C agonist acting locally in the gastrointestinal tract. Systemic bioavailability is not the primary success criterion.

Company at a glance

Corporate information

Company entity
Ironwood Pharmaceuticals, Inc.
Headquarters / principal office
Boston, MASelf-reported location on the company LinkedIn page; regional scope may differ from the legal or global headquarters. ↗
Founded
1998 ↗ ↗
Ownership / capital status
Publicly tradedPublicly traded (NASDAQ: IRWD) ↗
Official corporate reference
https://ironwoodpharma.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

LINZESS (linaclotide) is an oral peptide with multiple disulfide bonds and a GC-C agonist acting locally in the gastrointestinal tract. Systemic bioavailability is not the primary success criterion.

Regional commercial rights clarify company coverage without creating duplicate drug programs.

2025-11-05: FDA expands LINZESS to pediatric IBS-C patients ages 7 and older

2026-05-27: LINZESS functional-constipation indication expands to children ages 2 and older

Program / serviceTarget / indicationRepresentative stageEvidence & scope
linaclotide / LINZESSGC-C · IBS-C / constipation-related indicationsApprovedQuantitative 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

  • Public information reviewed is insufficient to reconstruct the complete formulation, absolute bioavailability, variability, or food effects.
  1. LINZESS 产品及研发背景 ↗Ironwood Pharmaceuticals · Undated
  2. LINZESS 结构及系统暴露标签 ↗DailyMed · 2026-10 Label snapshot
  3. Ironwood Q2 2026 Form 10-Q: linaclotide territory partners ↗原始公司或监管来源 · 2026年二季度报告(6月30日期末)
  4. FDA expands LINZESS to pediatric IBS-C patients ages 7 and older ↗FDA · 2025-11-05
  5. LINZESS functional-constipation indication expands to children ages 2 and older ↗Ironwood Pharmaceuticals · 2026-05-27
  6. Ironwood Company Overview ↗Ironwood Pharmaceuticals · 2026
  7. Ironwood company profile ↗Ironwood / LinkedIn · Not stated
  8. Ironwood FY2025 Form10-K ↗Ironwood / SEC · 2026-02
  9. Official corporate website audit ↗Ironwood Pharmaceuticals · 2026-11-04 retrieval; original page date where stated
  10. Company-managed LinkedIn profile — self-reported location ↗Ironwood Pharmaceuticals · Checked 2026-11-04; source publication date retained where stated

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