Arrowhead Pharmaceuticals, Inc. develops medicines for the treatment of intractable diseases in the United States. The company's products in pipeline includes Plozasiran, which is in Phase 2b and one Phase 3 clinical trial to treat hypertriglyceridemia, mixed dyslipidemia, and chylomicronemia syndrome; Zodasiran that is in Phase 2b clinical trial for the treatment of dyslipidemia and hypertriglyceridemia; ARO-PNPLA3, which is in Phase 1 clinical trial to treat patients with non-alcoholic steatohepatitis; ARO-RAGE that is in Phase 1/2a clinical trial to treat inflammatory pulmonary conditions; and ARO-MUC5AC, which is in Phase 1/2a clinical trial to treat muco-obstructive pulmonary diseases. It also develops ARO-MMP7 that is in Phase 1/2a clinical trial for treatment of idiopathic pulmonary fibrosis; ARO-DUX4 for the treatment of facioscapulohumeral muscular dystrophy; ARO-SOD1 for the potential treatment of amyotrophic lateral sclerosis; and ARO-C3, which is in Phase 1/2a clinical trial for the treatment of patients with various complement mediated or complement associated renal diseases. In addition, the company is involved in the development of JNJ-3989, which is in Phase 2 clinical trial to treat chronic hepatitis B virus infection; Olpasiran that is in Phase 3 clinical trial to reduce the production of apolipoprotein A; GSK-4532990 that is in phase 2 clinical trial to treat liver diseases; HZN-457, which is in phase 1 clinical trial to treat uncontrolled gout; and Fazirsiran that is in Phase 3 clinical trial for the treatment for liver disease associated with alpha-1 antitrypsin deficiency. Arrowhead Pharmaceuticals, Inc. has license and research collaboration agreements with Janssen Pharmaceuticals, Inc.; Takeda Pharmaceutical Company Limited; Horizon Therapeutics Ireland DAC; Amgen Inc.; and Glaxosmithkline Intellectual Property (No. 3) Limited. The company was founded in 2003 and is headquartered in Pasadena, California.

Kiniksa Pharmaceuticals International, plc, a biopharmaceutical company, focuses on discovering, acquiring, developing, and commercializing therapeutic medicines for patients suffering from debilitating diseases with significant unmet medical needs worldwide. Its product candidates include ARCALYST, an interleukin-1alpha and interleukin-1beta, for the treatment of recurrent pericarditis, which is an inflammatory cardiovascular disease; Mavrilimumab, a monoclonal antibody inhibitor that completed Phase II clinical trials for the treatment of giant cell arteritis; Vixarelimab, a monoclonal antibody, that is in Phase 2b clinical trial for the treatment of prurigo nodularis, a chronic inflammatory skin condition; and KPL-404, a monoclonal antibody inhibitor of the CD40- CD154 interaction, a T-cell co-stimulatory signal critical for B-cell maturation, immunoglobulin class switching, and type 1 immune response. The company was formerly known as Kiniksa Pharmaceuticals, Ltd and changed its name tpKiniksa Pharmaceuticals International, plc in June 2024. The company was incorporated in 2015 and is based in London, the United Kingdom.

Mineralys Therapeutics, Inc., a clinical-stage biopharmaceutical company that develops therapies for the treatment of hypertension and chronic kidney diseases. It clinical-stage product candidate is lorundrostat, a proprietary, orally administered, highly selective aldosterone synthase inhibitor for the treatment of cardiorenal conditions affected by abnormally elevated aldosterone. The company was formerly known as Catalys SC1, Inc. and changed its name to Mineralys Therapeutics, Inc. in May 2020. The company was incorporated in 2019 and is headquartered in Radnor, Pennsylvania.

Akebia Therapeutics, Inc., a biopharmaceutical company, focuses on the development and commercialization of therapeutics for patients with kidney diseases. The company's lead product investigational product candidate is Vafseo (vadadustat), an oral hypoxia-inducible factor prolyl hydroxylase, which is in Phase III development for the treatment of anemia due to chronic kidney disease (CKD) in dialysis-dependent and non-dialysis dependent patients. It offers Auryxia, a ferric citrate that is used to control the serum phosphorus levels in adult patients with DD-CKD on dialysis; and the treatment of iron deficiency anemia in adult patients with CKD not on dialysis. The company's product pipeline includes AKB-9090, a drug targeting critical-care indications; and AKB-10108, a drug targeting conditions related to premature birth. It has collaboration agreements with Mitsubishi Tanabe Pharma Corporation for the development and commercialization of vadadustat in Japan and other Asian countries, as well as research and license agreement with Janssen Pharmaceutica NV for the development and commercialization of hypoxia-inducible factor prolyl hydroxylase targeted compounds worldwide. Akebia Therapeutics, Inc. was incorporated in 2007 and is headquartered in Cambridge, Massachusetts.

Phathom Pharmaceuticals, Inc., biopharmaceutical company, focuses on developing and commercializing treatments for gastrointestinal diseases. The company has the rights in the United States, Europe, and Canada for an investigational potassium-competitive acid blocker (P-CAB) that blocks acid secretion in the stomach. It is also developing vonoprazan for the treatment of erosive gastroesophageal reflux disease; and in combination with antibiotics for the treatment of Helicobacter pylori infection. The company was incorporated in 2018 and is headquartered in Florham Park, New Jersey.

Aldeyra Therapeutics, Inc., a biotechnology company, develops and commercializes medicines for immune-mediated diseases. Its lead product candidate is reproxalap, a reactive aldehyde species (RASP)modulator, which is in Phase III clinical trial for the treatment of dry eye diseases. The company also develops ADX-629, an orally administered RASP modulator for treatment of COVID-19, atopic asthma, psoriasis, and alcohol intoxication; and ADX-2191, a dihydrofolate reductase inhibitor for the treatment retinitis pigmentosa, as well as rare retinal diseases characterized by inflammation and vision loss. In addition, it develops ADX-246 in systemic immune-mediated disease; and ADX-248 in geographic atrophy. The company was formerly known as Aldexa Therapeutics, Inc. and changed its name to Aldeyra Therapeutics, Inc. in March 2014. Aldeyra Therapeutics, Inc. was incorporated in 2004 and is based in Lexington, Massachusetts.

Ironwood Pharmaceuticals, Inc., a healthcare company, focuses on the development and commercialization of gastrointestinal (GI) products. It markets linaclotide, a guanylate cyclase type-C (GC-C) agonist for the treatment of adults suffering from irritable bowel syndrome with constipation or chronic idiopathic constipation under the LINZESS name in the United States, Mexico, Japan, Saudi Arabia, and China, as well as under the CONSTELLA name in the Canada and European countries. The company is also developing IW-3300, a GC-C agonist for the treatment of visceral pain conditions, including interstitial cystitis/bladder pain syndrome and endometriosis; Apraglutide, a next-generation, long-acting synthetic peptide analog of glucagon-like peptide-2, as a differentiated therapeutic for rare diseases, including short bowel syndrome dependent on parenteral support and acute graft versus host disease; and CNP-104, an immune nanoparticle for the treatment of primary biliary cholangitis. The company has strategic partnerships with AbbVie Inc., AstraZeneca AB, and Astellas Pharma Inc. for the development and commercialization of linaclotide. The company was formerly known as Microbia, Inc. and changed its name to Ironwood Pharmaceuticals, Inc. in April 2008. Ironwood Pharmaceuticals, Inc. was incorporated in 1998 and is headquartered in Boston, Massachusetts.

Artelo Biosciences, Inc., a clinical stage biopharmaceutical company, develops and commercializes therapeutics that target lipid-signaling pathways in the United States. It's product candidate pipeline includes ART27.13, a synthetic dual cannabinoid G protein-coupled receptor agonist, which is in Phase 1b/2a clinical trial for the treatment of anorexia associated with cancer; ART12.11, a synthetic cannabidiol cocrystal for the treatment anxiety, post-traumatic stress disorder, epilepsy, inflammatory bowel disease, and other potential indications; and ART26.12, a fatty acid binding protein 5 inhibitor for treating chemotherapy induced peripheral neuropathy, diabetic neuropathy, prostate cancer and breast cancer, pain, dermatologic conditions, and anxiety disorders. The company was formerly known as Reactive Medical, Inc. and changed its name to Artelo Biosciences, Inc. in April 2017. Artelo Biosciences, Inc. was incorporated in 2011 and is based in Solana Beach, California.