Insmed Incorporated, a biopharmaceutical company, develops and commercializes therapies for patients with serious and rare diseases in the United States, Europe, Japan, and internationally. The company offers ARIKAYCE for the treatment of Mycobacterium avium complex lung disease as part of a combination antibacterial drug regimen for adult patients. It is also developing Brensocatib, an oral reversible inhibitor of dipeptidyl peptidase 1 for the treatment of patients with bronchiectasis and other neutrophil-mediated diseases; and Treprostinil Palmitil Inhalation Powder, an inhaled formulation of a treprostinil prodrug treprostinil palmitil for the treatment of pulmonary hypertension associated with interstitial lung disease and pulmonary arterial hypertension. The company was founded in 1988 and is headquartered in Bridgewater, New Jersey.

United Therapeutics Corporation, a biotechnology company, engages in the development and commercialization of products to address the unmet medical needs of patients with chronic and life-threatening diseases in the United States and internationally. The company offers Tyvaso DPI, an inhaled dry powder via pre-filled and single-use cartridges; Tyvaso, an inhaled solution via ultrasonic nebulizer; Remodulin (treprostinil) injection to treat patients with pulmonary arterial hypertension (PAH) to diminish symptoms associated with exercise; Orenitram, a tablet dosage form of treprostinil, to delay disease progression and improve exercise capacity in PAH patients; and Adcirca, an oral PDE-5 inhibitor to enhance the exercise ability in PAH patients. It also markets and sells Unituxin (dinutuximab) injection, a monoclonal antibody for treating high-risk neuroblastoma; and Remunity Pump, which contains a pump and separate controller for Remodulin. In addition, the company engages in developing RemoPro and Ralinepag for the treatment of PAH; Aurora-GT, a gene therapy product to rebuild the blood vessels in the lungs; and Nebulized Tyvaso, for the treatment of idiopathic pulmonary fibrosis, as well as xenografts, which are development-stage organ products. It has licensing and collaboration agreements with DEKA Research & Development Corp. to develop a semi-disposable system for the subcutaneous delivery of treprostinil; MannKind Corporation to develop and license treprostinil inhalation powder and the Dreamboat device; and Arena Pharmaceuticals, Inc. to develop Ralinepag. The company was incorporated in 1996 and is headquartered in Silver Spring, Maryland.

Ligand Pharmaceuticals Incorporated, a biopharmaceutical company, engages in the development and licensing of biopharmaceutical assets worldwide. Its commercial programs include Kyprolis and Evomela, which are used to treat multiple myeloma; Rylaze, a recombinant erwinia asparaginase for the treatment of acute lymphoblastic leukemia or lymphoblastic lymphoma in adult and pediatric patients; Filspari, a dual endothelin and angiotensin II receptor antagonist in development for rare kidney diseases and non-immunosuppressive treatment indicated for immunoglobulin A nephropathy; Teriparatide injection product for osteoporosis; Vaxneuvance for the prevention of invasive disease caused by streptococcus pneumoniae serotypes; and Pneumosil, a pneumococcal conjugate vaccine to help fight against pneumococcal pneumonia among children. The company also offers TZIELD, a CD3-directed antibody indicated to delay the onset of Stage 3 type 1 diabetes (T1D) in adults and children aged 8 years and older with Stage 2 T1D; Nexterone, a captisol-enabled formulation of amiodarone; Zulresso, a captisol-enabled formulation of brexanolone for the treatment of postpartum depression; and Veklury, an antiviral treatment for moderate or severe COVID-19. In addition, it provides Noxafil-IV, a captisol-enabled formulation of posaconazole for IV use; Duavee for the treatment of post-menopausal symptoms in women; Exemptia for autoimmune diseases; Vivitra for breast cancer; and Bryxta and Zybev for various indications. The company has alliances, licenses, and other business relationships with Amgen, Merck, Pfizer, Jazz, Takeda, Gilead Sciences, and Baxter International. Further, it sells Captisol materials. Ligand Pharmaceuticals Incorporated was incorporated in 1987 and is based in Jupiter, Florida.

MannKind Corporation, a biopharmaceutical company, focuses on the development and commercialization of inhaled therapeutic products for endocrine and orphan lung diseases in the United States. It offers Afrezza, an inhaled insulin used to improve glycemic control in adults with diabetes, and the V-Go wearable insulin delivery device, which provides continuous subcutaneous infusion of insulin in adults. The company's product pipeline also includes Tyvaso DPI (Treprostinil), an inhalation powder for the treatment of pulmonary arterial hypertension and pulmonary hypertension associated with interstitial lung disease; MNKD-101, a nebulized formulation of clofazimine, for the treatment of severe chronic and recurrent pulmonary infections, including nontuberculous mycobacterial lung disease; MNKD-201, a dry-powder formulation of nintedanib, for the treatment of idiopathic pulmonary fibrosis (IPF). In addition, it has collaboration and license agreement with United Therapeutics Corporation for development, regulatory, and commercial activities of Tyvaso DPI; co-promotion agreement with Vertice Pharma to promote Thyquidity; and collaboration agreement with Thirona to evaluate the therapeutic for the treatment of pulmonary fibrosis. Further, the company has supply and distribution agreement with Biomm S.A. for the commercialization of Afrezza in Brazil; and license and distribution agreement with Cipla Ltd. for the marketing and distribution of Afrezza in India. MannKind Corporation was incorporated in 1991 and is headquartered in Danbury, Connecticut.

Theravance Biopharma, Inc., a biopharmaceutical company, discovers, develops, and commercializes respiratory medicines in the United States and Europe. It offers YUPELRI, a once-daily, nebulized long-acting muscarinic antagonist for the treatment of chronic obstructive pulmonary disease (COPD). The company's product includes Ampreloxetine, an investigational norepinephrine reuptake inhibitor that has completed Phase III study for neurogenic orthostatic hypotension; and TRELEGY for the treatment of COPD and asthma. It has licensing and collaboration agreements with Pfizer Inc. for its preclinical skin-selective pan-JAK inhibitor program, as well as Viatris Inc. Theravance Biopharma, Inc. was incorporated in 2013 and is based in South San Francisco, California.

Aileron Therapeutics, Inc., a biopharmaceutical company, focuses on developing medicines to address unmet medical needs in orphan pulmonary and fibrosis indications in the United States. The company's lead product candidate is LTI-03, a peptide, which is in Phase 1b clinical trial for the treatment of idiopathic pulmonary fibrosis (IPF). Its second product candidate is LTI-01, a proenzyme that has completed Phase 1b and Phase 2a clinical trials in LPE patients for the treatment of loculated pleural effusion. The company's pipeline also includes preclinical programs targeting cystic fibrosis and a peptide program focused on the caveolin-1 protein for systemic fibrosis indications. The company was formerly known as Renegade Therapeutics, Inc. and changed its name to Aileron Therapeutics, Inc. in February 2007. Aileron Therapeutics, Inc. was incorporated in 2001 and is headquartered in Austin, Texas.

Pulmatrix, Inc., a clinical stage biotechnology company, focused on development of novel inhaled therapeutic products to prevent and treat respiratory and other diseases with unmet medical needs in the United States. The company offers iSPERSE, an engineered dry powder delivery platform, which enables delivery of small or large molecule drugs to the lungs by inhalation for local or systemic applications. It engages in developing PUR1800, a narrow spectrum kinase inhibitor completed Phase 1b clinical trials for the treatment of acute exacerbations in chronic obstructive pulmonary disease; PUR1900 for the treatment of allergic bronchopulmonary aspergillosis in patients with asthma and cystic fibrosis; and PUR3100, an iSPERSE formulation of dihydroergotamine which is in Phase 1 for the treatment of acute migraine. It has a license agreement with RespiVert Ltd. for access to a portfolio of kinase inhibitor drug candidates. The company was founded in 2003 and is headquartered in Bedford, Massachusetts.

Tenax Therapeutics, Inc. develops and commercializes pharmaceutical products containing imatinib for the treatment of pulmonary arterial hypertension in the United States. The company develops TNX-101 (IV), TNX-102, and TNX-103 (levosimendan) that have completed phase II clinical trials for the treatment of patients with pulmonary hypertension associated with heart failure with preserved ejection fraction and associated pulmonary hypertension; and TNX-201 (imatinib), a tyrosine kinase inhibitor for the treatment of chronic myeloid leukemia. The company was formerly known as Oxygen Biotherapeutics, Inc. and changed its name to Tenax Therapeutics, Inc. in September 2014. Tenax Therapeutics, Inc. was founded in 1967 and is based in Chapel Hill, North Carolina.