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Last Updated: March 28, 2024

Claims for Patent: 9,844,558


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Summary for Patent: 9,844,558
Title:Methods of reducing risk of preterm birth
Abstract: This disclosure generally relates to methods for reducing the risk of preterm birth in a pregnant human female patient that include subcutaneous administration of HPC. The disclosure relates in part to the discovery that subcutaneous administration of HPC is actually feasible and can result in sufficient plasma levels of HPC in pregnant patients that can reduce the risk of preterm birth.
Inventor(s): Birch; Robert (Saint Charles, MO), Jozwiakowski; Michael J. (Sudbury, MA)
Assignee: AMAG Pharmaceuticals, Inc. (Waltham, MA)
Application Number:15/373,262
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,844,558
Patent Claims: 1. A method of reducing the risk of preterm birth in a pregnant human patient, comprising: subcutaneously administering to the posterior portion of the upper arm of the said human patient a 1.1 mL dose of a pharmaceutically acceptable viscous non-aqueous liquid formulation comprising 275 mg of hydroxyprogesterone caproate, castor oil and benzyl benzoate; and wherein the dose is administered about weekly, beginning between about 16 weeks of gestation, zero days, to about 21 weeks, six days of gestation, and continued until about 37 weeks of gestation or delivery, whichever occurs first; and wherein the pregnant human patient has a singleton pregnancy and a history of singleton spontaneous preterm birth.

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