RYTM vs XFOR

Rhythm Pharmaceuticals Inc.

Rhythm Pharmaceuticals, Inc., a commercial-stage biopharmaceutical company, focuses on the development and commercialization of therapeutics for the treatment of rare genetic diseases of obesity. The company's lead product candidate is IMCIVREE, a potent melanocortin-4 receptor for the treatment of pro-opiomelanocortin (POMC), proprotein convertase subtilisin/kexin type 1, leptin receptor (LEPR) deficiency obesity, and Bardet-Biedl and Alström syndrome. It is also developing setmelanotide, which is in Phase II clinical trials for treating POMC or LEPR heterozygous deficiency obesities, steroid receptor coactivator 1 deficiency obesity, SH2B1 deficiency obesity, MC4 receptor deficiency obesity, Smith-Magenis syndrome obesity, POMC epigenetic disorders, and other MC4R disorders. Rhythm Pharmaceuticals, Inc. has a collaborative research agreement with the Clinical Registry Investigating Bardet-Biedl Syndrome. The company was formerly known as Rhythm Metabolic, Inc. and changed its name to Rhythm Pharmaceuticals, Inc. in October 2015. Rhythm Pharmaceuticals, Inc. was founded in 2008 and is headquartered in Boston, Massachusetts.

X4 Pharmaceuticals Inc.

X4 Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, focuses on the research, development, and commercialization of novel therapeutics for the treatment of rear diseases. Its lead product candidate is mavorixafor, an oral small molecule antagonist of chemokine receptor CXCR4, which is in Phase III clinical trial for the treatment of patients with warts, hypogammaglobulinemia, infections, and myelokathexis syndrome; Phase Ib clinical trial to treat severe congenital neutropenia and Waldenström macroglobulinemia; and Phase IIa clinical trial for the treatment of clear cell renal cell carcinoma. The company is also developing X4P-002 for the treatment of glioblastoma multiforme; and X4P-003 to treat patients suffering from chronic rare diseases. X4 Pharmaceuticals, Inc. has a license agreement with Abbisko Therapeutics Co., Ltd. to develop, manufacture, and commercialize mavorixafor in combination with checkpoint inhibitors or other agents in oncology indications. The company was founded in 2014 and is headquartered in Boston, Massachusetts.