Alnylam Pharmaceuticals, Inc., a biopharmaceutical company, focuses on discovering, developing, and commercializing novel therapeutics based on ribonucleic acid interference. Its marketed products include ONPATTRO (patisiran) for the treatment of the polyneuropathy of hereditary transthyretin-mediated amyloidosis in adults; AMVUTTRA for the treatment of hATTR amyloidosis with polyneuropathy in adults; GIVLAARI for the treatment of adults with acute hepatic porphyria; and OXLUMO for the treatment of primary hyperoxaluria type 1. In addition, the company develops patisiran for the treatment of transthyretin amyloidosis, or ATTR amyloidosis, with cardiomyopathy; cemdisiran to treat complement-mediated diseases; Belcesiran for the treatment of alpha-1 liver disease; Elebsiran to treat chronic HBV infection; Zilebesiran to treat hypertension; ALN-APP to treat Alzheimer's disease and cerebral amyloid angiopathy; and ALN-HSD to treat NASH. Further, it offers Fitusiran for the treatment of hemophilia, Inclisiran to treat hypercholesterolemia, lumasiran for the treatment of advanced PH1, and vutrisiran for the treatment of ATTR amyloidosis, which is in phase 3 clinical trial. Alnylam Pharmaceuticals, Inc. has strategic collaborations with Regeneron Pharmaceuticals, Inc. to discover, develop, and commercialize RNAi therapeutics for a range of diseases by addressing therapeutic targets expressed in the eye and CNS; and Roche to develop pharmaceutical products containing zilebesiran. It also has license and collaboration agreements with Novartis AG; Vir Biotechnology, Inc.; Dicerna Pharmaceuticals, Inc.; Ionis Pharmaceuticals, Inc.; and PeptiDream, Inc. The company was founded in 2002 and is headquartered in Cambridge, Massachusetts.

BioMarin Pharmaceutical Inc. engages in the development and commercialization of therapies for people with serious and life-threatening rare diseases and medical conditions. Its commercial products include Vimizim, an enzyme replacement therapy for the treatment of mucopolysaccharidosis (MPS) IV type A, a lysosomal storage disorder; Naglazyme, a recombinant form of N-acetylgalactosamine 4-sulfatase for patients with MPS VI; and Kuvan, a proprietary synthetic oral form of 6R-BH4 that is used to treat patients with phenylketonuria (PKU), an inherited metabolic disease. The company's commercial products also comprise Palynziq, a PEGylated recombinant phenylalanine ammonia lyase enzyme, which is delivered through subcutaneous injection to reduce blood Phe concentrations; Brineura, a recombinant human tripeptidyl peptidase 1 for the treatment of patients with ceroid lipofuscinosis type 2, a form of Batten disease; Voxzogo, a once daily injection analog of c-type natriuretic peptide for the treatment of achondroplasia; and Aldurazyme, a purified protein designed to be identical to a naturally occurring form of the human enzyme alpha-L-iduronidase. In addition, it develops Roctavian, an adeno associated virus vector, for the treatment of patients with severe hemophilia A. The company serves specialty pharmacies, hospitals, and non-U.S. government agencies, as well as distributors and pharmaceutical wholesalers in the United States, Europe, Latin America, and internationally. It has license and collaboration agreements with Sarepta Therapeutics; Ares Trading S.A.; Catalyst Pharmaceutical Partners, Inc.; and CAMP4 Therapeutics Corporation. The company was incorporated in 1996 and is headquartered in San Rafael, California.

PTC Therapeutics, Inc., a biopharmaceutical company, focuses on the discovery, development, and commercialization of medicines to patients with rare disorders in the United States and internationally. The company offers Translarna and Emflaza for the treatment of Duchenne muscular dystrophy; Upstaza to treat aromatic l-amino acid decarboxylas (AADC) deficiency, a central nervous system disorder; Tegsedi and Waylivra for the treatment of rare diseases; and Evrysdi to treat spinal muscular atrophy (SMA) in adults and children. Its development pipeline products include Sepiapterin for the treatment of phenylketonuria; PTC518 splicing platform, which is being developed for the treatment of Huntington's disease; and ferroptosis and inflammation platforms, including vatiquinone to treat Friedreich ataxia and utreloxastat for the treatment of amyotrophic lateral sclerosis. The company distributes its products through third-party distributors. It has collaborations with F. Hoffman-La Roche Ltd, Hoffman-La Roche Inc., the SMA Foundation, National Taiwan University, Akcea Therapeutics, Inc., and Shiratori Pharmaceutical Co., Ltd. The company has license and collaboration agreement with Novartis Pharmaceuticals Corporation to develop PTC518 Huntington's disease program. PTC Therapeutics, Inc. was incorporated in 1998 and is headquartered in South Plainfield, New Jersey.

Sarepta Therapeutics, Inc., a commercial-stage biopharmaceutical company, focuses on the discovery and development of RNA-targeted therapeutics, gene therapies, and other genetic therapeutic modalities for the treatment of rare diseases. It offers EXONDYS 51 injection to treat duchenne muscular dystrophy (duchenne) in patients with confirmed mutation of the dystrophin gene that is amenable to exon 51 skipping; VYONDYS 53 for the treatment of duchenne in patients with confirmed mutation of the dystrophin gene that is amenable to exon 53 skipping; AMONDYS 45 for the treatment of duchenne in patients with confirmed mutation of the dystrophin gene; and ELEVIDYS, an adeno-associated virus based gene therapy for the treatment of ambulatory pediatric patients aged 4 through 5 years with duchenne with a confirmed mutation in the duchenne gene. The company is also developing SRP-5051, a peptide conjugated PMO that binds exon 51 of dystrophin pre-mRNA; and SRP-9003, a limb-girdle muscular dystrophies gene therapy program. It has collaboration and license agreements with F. Hoffman-La Roche Ltd; Nationwide Children's Hospital; Genevant Sciences; University of Florida; Dyno Therapeutics; Hansa Biopharma; Duke University; Genethon; and StrideBio. The company was incorporated in 1980 and is headquartered in Cambridge, Massachusetts.

BioCryst Pharmaceuticals, Inc., a biotechnology company, develops oral small-molecule and protein therapeutics to treat rare diseases. The company markets peramivir injection, an intravenous neuraminidase inhibitor for the treatment of acute uncomplicated influenza under the RAPIVAB, RAPIACTA, and PERAMIFLU names; and ORLADEYO, an oral serine protease inhibitor to treat hereditary angioedema. It is also developing BCX10013, an oral factor D inhibitor for complement-mediated diseases. The company has collaborations and in-license relationships with the Torii Pharmaceutical Co., Ltd.; Seqirus UK Limited; Shionogi & Co., Ltd.; Green Cross Corporation; National Institute of Allergy and Infectious Diseases; Biomedical Advanced Research and Development Authority; the U.S. Department of Health and Human Services; and The University of Alabama at Birmingham, as well as Albert Einstein College of Medicine of Yeshiva University and Industrial Research, Ltd. BioCryst Pharmaceuticals, Inc. was founded in 1986 and is headquartered in Durham, North Carolina.

Fulcrum Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on developing products for improving the lives of patients with genetically defined diseases in the areas of high unmet medical need in the United States. Its product candidates are losmapimod, a small molecule for the treatment of facioscapulohumeral muscular dystrophy is under phase III clinical trial; and pociredir, a fetal hemoglobin inducer for the treatment of sickle cell disease and beta-thalassemia is under phase I clinical trial. The company is also discovering drug targets for the treatments of rare neuromuscular, muscular, central nervous system, and hematologic disorders, as well as cardiomyopathies and pulmonary diseases. It has collaboration and license agreement with Acceleron Pharma Inc. to identify biological targets to modulate specific pathways associated with a targeted indication within the pulmonary disease space; MyoKardia, Inc. to discover and develop therapies for the treatment of genetic cardiomyopathies; and Sanofi for the development and commercialization of losmapimod, an oral small molecule being investigated for the treatment of facioscapulohumeral muscular dystrophy. Fulcrum Therapeutics, Inc. was Incorporated in 2015 and is headquartered in Cambridge, Massachusetts.

Passage Bio, Inc., a genetic medicines company, develops gene therapies for central nervous system diseases. It develops PBGM01, a functional GLB1 gene encoding ß-galactosidase for infantile GM1; PBFT02, a functional granulin (GRN) and gene encoding progranulin (PGRN) for the treatment of FTD caused by progranulin deficiency; and PBKR03, a functional GALC gene encoding the hydrolytic enzyme galactosylceramidase for infantile Krabbe disease. The company develops PBML04 for the treatment of metachromatic leukodystrophy; PBAL05 for the treatment of amyotrophic lateral sclerosis; and other program for huntington's disease. It has a strategic research collaboration with the Trustees of the University of Pennsylvania's Gene Therapy Program; and collaboration agreement, and a development services and clinical supply agreement with Catalent Maryland, Inc. Passage Bio, Inc. was incorporated in 2017 and is headquartered in Philadelphia, Pennsylvania.

Acorda Therapeutics, Inc., a biopharmaceutical company, develops and commercializes therapies for neurological disorders in the United States. The company markets Ampyra (dalfampridine), an oral drug to improve walking in adults with multiple sclerosis; and Inbrija, an inhaled levodopa for intermittent treatment of OFF periods in people with Parkinson's disease treated with a carbidopa/levodopa regimen. It also markets Ampyra as Fampyra in Europe, Asia, and the Americas. The company's product pipeline includes Cimaglermin alfa (GGF2), a member of neuregulin growth factor family which is in Phase 1 clinical trials for recovery of neurological injury, as well as to enhance heart function in animal models of heart failure. In addition, it has collaboration and license agreement with Biogen Inc. for the development and commercialization of Ampyra. The company was incorporated in 1995 and is headquartered in Pearl River, New York.