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XOI — Competitive Intelligence Brief
marketed
Guanylate cyclase-C agonist
GC-C (guanylate cyclase-C)
Gastroenterology
Small molecule
Live · refreshed every 30 min
Target snapshot
XOI (XOI) — Ironwood Pharmaceuticals, Inc.. XOI is a guanylate cyclase-C (GC-C) agonist that increases intracellular cGMP in intestinal epithelial cells to promote fluid secretion and bowel motility.
Comparator set (4 drugs)
| Drug | Generic | Sponsor | Phase | Class | Target | Approval / PDUFA |
|---|---|---|---|---|---|---|
| XOI TARGET | XOI | Ironwood Pharmaceuticals, Inc. | marketed | Guanylate cyclase-C agonist | GC-C (guanylate cyclase-C) | |
| Trulance | PLECANATIDE | Salix | marketed | Guanylate Cyclase-C Agonist [EPC] | Tumor necrosis factor | 2017-01-01 |
| Linzess | LINACLOTIDE | AbbVie | marketed | Guanylate Cyclase-C Agonist [EPC] | Heat-stable enterotoxin receptor | 2012-01-01 |
| Linaclotide 72 micrograms | Linaclotide 72 micrograms | Md Mehedi Shahriar | marketed | Guanylate cyclase-C agonist | GC-C (guanylate cyclase-C receptor) | |
| AJG555 | AJG555 | EA Pharma Co., Ltd. | phase 3 | Guanylate cyclase-C agonist | GC-C (guanylate cyclase-C) |
Recent regulatory actions (last 90 days)
Upcoming PDUFA dates (next 180 days)
Patent timeline (forward window)
Sponsor landscape (Guanylate cyclase-C agonist class)
- EA Pharma Co., Ltd. · 1 drug in this class
- Ironwood Pharmaceuticals, Inc. · 1 drug in this class
- Md Mehedi Shahriar · 1 drug in this class
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Cite this brief
Drug Landscape (2026). XOI — Competitive Intelligence Brief. https://druglandscape.com/ci/xoi. Accessed 2026-05-13.
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