175
Participants
Start Date
October 31, 2018
Primary Completion Date
October 7, 2020
Study Completion Date
October 7, 2020
Gefapixant
Gefapixant 15 mg or 45 mg tablet administered orally BID
Placebo
Placebo matched to gefapixant 15 mg or 45 mg administered orally BID
Chubu Rosai Hospital ( Site 3839), Nagoya
National Hospital Organization Nagoya Medical Center ( Site 3898), Nagoya
Nagoya City University Hospital ( Site 3899), Nagoya
Fukuoka University Chikushi Hospital ( Site 3886), Chikushino-shi
Oishi Clinic ( Site 3818), Kasuya-gun
National Hospital Organization Fukuokahigashi Medical Center ( Site 3849), Koga
Nagata Hospital ( Site 3815), Yanagawa
Tohno Chuo Clinic ( Site 3883), Mizunami
National Hospital Organization Shibukawa Medical Center ( Site 3843), Shibukawa
Idaimae Minamiyojo Int Clinic ( Site 3903), Sapporo
Terada Clinic Respiratory Medicine & General Practice ( Site 3907), Himeji
Kinki Central Hospital ( Site 3910), Itami
Kobe City Hospital Organization Kobe City Medical Center West Hospital ( Site 3868), Kobe
National Hospital Organization Mito Medical Center ( Site 3846), Higashiibaraki-gun
National Hospital Organization Ibarakihigashi National Hospital ( Site 3917), Naka-gun
JA Toride Medical Center ( Site 3822), Toride
National Hospital Organization Kasumigaura Medical Center ( Site 3844), Tsuchiura
Ishikawa Prefectural Central Hospital ( Site 3915), Kanazawa
Japan Community Health care Organization Kanazawa Hospital ( Site 3817), Kanazawa
Komatsu Municipal Hospital ( Site 3892), Komatsu
Kamei Internal Medicine and Respiratory Clinic ( Site 3904), Takamatsu
Fujisawa City Hospital ( Site 3891), Fujisawa
Association of Healthcare Corporation Koukankai Koukan Clinic ( Site 3878), Kawasaki
Yokohama City Minato Red Cross Hospital ( Site 3906), Yokohama
Saiseikai Yokohamashi Nanbu Hospital ( Site 3897), Yokohama
Kanagawa Cardiovascular and Respiratory Center ( Site 3908), Yokohama
Matsusaka City Hospital ( Site 3825), Matsusaka
Koyama Medical Clinic ( Site 3838), Matsumoto
Nagaoka Red Cross Hospital ( Site 3877), Nagaoka
National Hospital Organization Minami-Okayama Medical Center ( Site 3901), Tsukubo-gun
Kawaguchi Respiratory Clinic ( Site 3890), Higashiosaka
Kishiwada City Hospital ( Site 3880), Kishiwada
Sasaki Naika Clinic ( Site 3872), Sakai
National Hospital Organization Kinki-chuo Chest Medical Center ( Site 3900), Sakai
Kindai University Hospital ( Site 3871), Sayama
Sugiura Clinic ( Site 3806), Kawaguchi
National Hospital Organization Matsue Medical Center ( Site 3848), Matsue
JapanOrganizationOfOccupationalHealthAndSafety HamamatsuRosaiHospital ( Site 3821), Hamamatsu
Hamamatsu Medical Center ( Site 3866), Hamamatsu
National Hospital Organization Tenryu Hospital ( Site 3823), Hamamatsu
Tokyo Medical University Hachioji Medical Center ( Site 3911), Hachiōji
National Hospital Organization Tokyo National Hospital ( Site 3909), Kiyose
Kiheibashi Otolaryngology ( Site 3828), Kodaira
Shimonoseki City Hospital ( Site 3902), Shimonoseki
Akita University Hospital ( Site 3851), Akita
Fukui-ken Saiseikai Hospital ( Site 3874), Fukui
Gifu Prefectural General Medical Center ( Site 3824), Gifu
Tochigi Takao Clinic ( Site 3833), Kagoshima
Nagano Red Cross Hospital ( Site 3859), Nagano
Saiseikai Niigata Hospital ( Site 3831), Niigata
Chibana Clinic ( Site 3809), Okinawa
Oita Red Cross Hospital ( Site 3837), Ōita
Yamagata Clinic ( Site 3813), Ōita
Ito ENT Clinic ( Site 3816), Shizuoka
Nihonbashi Egawa Clinic ( Site 3805), Tokyo
The Fraternity Memorial Hospital ( Site 3873), Tokyo
Showa University Hospital ( Site 3896), Tokyo
Ebisu Clinic Koukokukai Medical Corporation ( Site 3804), Tokyo
Kono Medical Clinic ( Site 3894), Tokyo
Medical Corporation Kouwakai Kouwa Clinic ( Site 3895), Tokyo
Tokyo Metropolitan Geriatric Hospital ( Site 3905), Tokyo
Merck Sharp & Dohme LLC
INDUSTRY