Axsome Therapeutics, Inc., a biopharmaceutical company, engages in the development of novel therapies for central nervous system (CNS) disorders in the United States. The company's commercial product portfolio includes Auvelity (dextromethorphan-bupropion), a N-methyl-D-aspartate receptor antagonist with multimodal activity indicated for the treatment of major depressive disorder; and Sunosi (solriamfetol), a medication indicated to the treatment of excessive daytime sleepiness in patients with narcolepsy or obstructive sleep apnea. It is also developing AXS-05, which is in Phase III clinical trial to treat Alzheimer's disease agitation, as well as that has completed phase II clinical trial for the treatment of smoking cessation; AXS-07, an investigational medicine that has completed Phase III trials for the acute treatment of migraine; AXS-12, an investigational medicine, which is in Phase III trial to treat narcolepsy; AXS-14, a selective and potent norepinephrine reuptake inhibitor that has completed Phase III trial for the treatment of fibromyalgia and other conditions; and solriamfetol, a dual-acting dopamine and norepinephrine reuptake inhibitor, which has completed a Phase 2 trial for treating attention-deficit/hyperactivity disorder, and is in phase 2 major depressive, binge eating, and shift work disorder. Axsome Therapeutics, Inc. has a research collaboration agreement with Duke University for evaluating AXS-05 in smoking cessation. The company was incorporated in 2012 and is based in New York, New York.

Chimerix, Inc., a biopharmaceutical company, develops medicines to improve and extend the lives of patients facing deadly diseases. Its pipeline products include ONC201 a program that is in Phase 3 clinical trial for treating patients with H3 K27M-mutant diffuse glioma, as well as in Phase 2 clinical trial for the treatment of rare neuroendocrine tumors; and ONC206, an imipridone, Dopamine Receptor D2 (DRD2) antagonist, and caseinolytic protease P (ClpP) agonist, which is in Phase 1 clinical trial for adult and pediatric patients with primary central nervous system tumors. The company also develops ONC212, an imipridone agonist of the orphan G protein-coupled receptors (GPCR) tumor suppressor GPR132, as well as ClpP for oncology indications; and CMX521, a nucleoside analog antiviral drug candidate for the treatment of SARS-CoV-2. It has license agreement with SymBio Pharmaceuticals to develop and commercialize TEMBEXA for human diseases other than orthopoxviruses, including smallpox. Chimerix, Inc. was incorporated in 2000 and is headquartered in Durham, North Carolina.

Zevra Therapeutics, Inc. discovers and develops various proprietary prodrugs to treat serious medical conditions in the United States. The company develops its products through Ligand Activated Therapy platform. Its lead product candidate is KP1077, consisting of KP1077IH, which is under Phase 2 clinical trial for the treatment of idiopathic hypersomnia, and KP1077N, which is under Phase ½ clinical trial to treat narcolepsy. The company is also developing Celiprolol, a prodrug product candidate that is under Phase 1/2 clinical trial for the treatment of vascular Ehlers Danlos syndrome. In addition, it offers AZSTARYS, a once-daily treatment for attention deficit hyperactivity disorder in patients aged six years and older; OLPRUVA to treat urea cycle disorders; and Arimoclomol for the treatment of niemann pick disease type C, an ultra-rare neurodegenerative lysosomal storage disorder. The company has collaboration and license agreement with Commave Therapeutics SA to develop, manufacture and commercialize the company's product candidates containing SDX and d-methylphenidate; and license agreement with Acer and Relief Therapeutics, Inc. to develop and commercialize rights for OLPRUVA. The company was formerly known as KemPharm, Inc. and changed its name to Zevra Therapeutics, Inc. in February 2023. Zevra Therapeutics, Inc. was incorporated in 2006 and is headquartered in Celebration, Florida.

Mereo BioPharma Group plc, a biopharmaceutical company, develops and commercializes therapeutics for the treatment of oncology and rare diseases in the United Kingdom, the United States, and internationally. It develops Etigilimab (MPH-313), an antibody T-cell immunoreceptor with Ig and ITIM domains, which is in Phase 1b clinical trial for the treatment of tumors. The company is also developing Navicixizumab (OMP-305B83), which has completed Phase 1b clinical trials for the treatment of the late line ovarian cancer; Acumapimod (BCT-197), a p38 MAP kinase inhibitor that is in Phase II clinical trials to treat acute exacerbations of chronic obstructive pulmonary disease; and Leflutrozole (BGS-649), an oral aromatase inhibitor for the treatment of hypogonadotropic hypogonadism which is in Phase 2 trials. In addition, it develops rare disease product candidates, including Setrusumab (BPS-804), an antibody for the treatment of osteogenesis imperfecta; and Alvelestat (MPH-966), an oral small molecule that is in Phase II clinical trial to treat Alpha-1 anti-trypsin deficiency. The company has a license agreement with Feng Biosciences for the development and commercialization of navicixizumab; license agreement with ReproNovo for the development and commercialization of leflutrozole; licensing agreement with AstraZeneca; and license agreement with Ultragenyx Pharmaceutical Inc. to develop and commercialize setrusumab. Mereo BioPharma Group plc was incorporated in 2015 and is headquartered in London, the United Kingdom.

Omeros Corporation, a clinical-stage biopharmaceutical company, discovers, develops, and commercializes small-molecule and protein therapeutics, and orphan indications targeting immunologic diseases, including complement-mediated diseases, cancers, and addictive and compulsive disorders. The company's products under development include Narsoplimab (OMS721/MASP-2) that has completed pivotal trial for hematopoietic stem-cell transplant-associated thrombotic microangiopathy (TA-TMA); that is in Phase III clinical trial for the treatment of immunoglobulin A nephropathy (IgAN); and Phase II clinical trial to treat COVID-19. It also develops OMS1029 that is in phase I clinical trials for long-acting second-generation antibody targeting lectin pathway disorders; OMS906 that has completed phase II clinical trials for Paroxysmal nocturnal hemoglobinuria, complement 3 glomerulopathy, and other alternative pathway disorders; and OMS527 that is in phase I clinical trials for addictions and compulsive disorders, and movement disorders. In addition, the company's products under preclinical development comprise MASP-2, a pro-inflammatory protein target for the treatment of lectin pathway disorders; MASP-3 small-molecule inhibitors for alternative pathway disorders; and Adoptive T-Cell and Chimeric Antigen Receptor (CAR) T-Cell Therapies and Immunomodulators/Immunotoxins/Cancer Vaccines for the treatment of various cancers. Omeros Corporation was incorporated in 1994 and is headquartered in Seattle, Washington.

Nuvectis Pharma, Inc., a biopharmaceutical company, focuses on the development of precision medicines for the treatment of serious unmet medical needs in oncology. The company's lead product candidate is NXP800, a novel small molecule that is in Phase 1b clinical trials for the treatment of patients with platinum-resistant, ARID1a-mutated ovarian carcinoma. It is also developing NXP900, a small molecule drug candidate, which is in Phase 1a clinical trails that inhibits the Proto-oncogene c-Src and YES1 kinases. It has license agreement with the CRT Pioneer Fund for the NXP800 and any of related derivatives; and the University of Edinburgh for the NXP900 and any of associated derivatives. The company was formerly known as Centry Pharma, Inc. and changed its name to Nuvectis Pharma, Inc. in July 2021. Nuvectis Pharma, Inc. was incorporated in 2020 and is based in Fort Lee, New Jersey.

NLS Pharmaceutics AG, a clinical-stage biopharmaceutical company, engages in the discovery and development of therapies for patients with rare and complex central nervous system disorders. The company is focusing on the development of treatments for narcolepsy, idiopathic hypersomnia, and other rare sleep disorders, as well as neurodevelopmental disorders, such as attention deficit hyperactivity disorder (ADHD). Its lead product candidates include Quilience to treat excessive daytime sleepiness and cataplexy associated with narcolepsy; and Nolazol for the treatment of ADHD. The company also developing NLS-4, a selective dopamine reuptake inhibitor treatment for the chronic fatigue associated with the symptoms of Long-COVID; NLS-3, a repurposed reverse ester of methylphenidate for treatment of ADHD; NLS-8, a melatonin ML1A receptor agonist for improved scopolamine-induced amnesia; NLS-11, a norepinephrine and dopamine reuptake inhibitor and muscarinic M1, M2, M3 receptor antagonist; and NLS-12, a norepinephrine and dopamine reuptake inhibitor and muscarinic M4 receptor antagonist. It has licensing agreements with NeuroLife-Sciences SAS for use of mazindol for the treatment of ADHD; and Eurofarma Laboratorios S.A. for commercialization and distribution of Nolazol in Latin America. NLS Pharmaceutics AG was incorporated in 2015 and is based in Zurich, Switzerland.

Aptorum Group Limited, through its subsidiaries, operates as a clinical stage biopharmaceutical company that engages in the discovery, development, and commercialization of therapeutic products for the treatment of oncology and infectious diseases. The company operates in the Therapeutics and Non-Therapeutics segments. Its pipeline products include SACT- 1 for neuroblastoma and other cancer types; SACT-COV19 for the treatment of coronavirus disease; ALS-4 to treat bacterial infections caused by staphylococcus aureus, including MRSA; ALS-1 to treat viral infections caused by influenza virus A; and ALS-2/3 for the treatment of gram+ve bacterial infections. The company is also developing RPIDD, a pathogen molecular diagnostic; NativusWell DOI (NLS-2), a dietary supplement; NLS-1 for the treatment of endometriosis; DLS-1+2 to treat NSCLC with mutation; DLS-3, an autoimmune small molecule; and CLS-1 for the treatment of obesity. Its pipeline products enable the discovery of new therapeutics assets, such as systematic screening of existing approved drug molecules, and microbiome-based research platforms for treatment of metabolic diseases. The company also focuses on therapeutic and diagnostic projects in neurology, gastroenterology, metabolic disorders, and other disease areas. In addition, it is involved in the operation of medical clinics. The company was formerly known as APTUS Holdings Limited and changed its name to Aptorum Group Limited in October 2017. Aptorum Group Limited was incorporated in 2010 and is headquartered in London, the United Kingdom.