Study of the Efficacy, Safety, and Tolerability of Serlopitant for the Treatment of Chronic Pruritus of Unknown Origin

Study Site 802, The Bronx

Study Site 507, Brooklyn

Study Site 522, Pittsburgh

Study Site 217, Norfolk

Study Site 341, High Point

Study Site 810, Raleigh

Study Site 349, Savannah

Study Site 801, Jacksonville

Study Site 807, Miami

Study Site 331, Miami

Study Site 811, Aventura

Study Site 818, West Palm Beach

Study Site 824, Sarasota

Study Site 805, Nashville

Study Site 524, Dublin

Study Site 814, Indianapolis

Study Site 817, St Louis

Study Site 371, Saint Joseph

Study Site 822, Rolla

Study Site 821, Bellevue

Study Site 221, Hot Springs

Study Site 120, Dallas

Study Site 819, Fort Worth

Study Site 809, San Antonio

Study Site 359, Pflugerville

Study Site 365, Austin

Study Site 820, Centennial

Study Site 804, Denver

Study Site 813, Las Vegas

Study Site 387, Las Vegas

Study Site 803, Los Angeles

Study Site 823, Bakersfield

Study Site 204, Fremont

Study Site 116, Portland

Study Site 806, Spokane

Study Site 808, Brighton

Study Site 816, Morristown

Study Site 121, Ocean Township

Study Site 345, Johnston

Study Site 815, Warwick

Study Site 812, Walla Walla