- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05583227
Efficacy and Safety of Tezepelumab in Patients With Eosinophilic Esophagitis (CROSSING)
A Randomized, Double-Blind, Parallel-Group, Placebo-Controlled Phase 3 Efficacy and Safety Study of Tezepelumab in Patients With Eosinophilic Esophagitis (CROSSING).
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The study consists of a screening period of 2 to 8 weeks and a 52-week randomized double-blind placebo-controlled treatment period. After completion of the treatment period, participants will be eligible to participate in an optional active treatment extension period (lasting for 24 weeks), followed by a 12-week off-treatment safety follow-up period. Participants who will not participate in the extension period will participate in a 12-week off-treatment safety follow-up period following completion of the 52-week treatment period.
This study will randomize approximately 360 participants. The participants will be randomized at 1:1:1 ratio to the 3 treatment arms.
Study Type
Enrollment (Estimated)
Phase
- Phase 3
Contacts and Locations
Study Contact
- Name: AstraZeneca Clinical Study Information Center
- Phone Number: 1-877-240-9479
- Email: information.center@astrazeneca.com
Study Contact Backup
- Name: Carebox Healthcare Solutions Inc
- Phone Number: 1-844-432-3890
- Email: az-crossing@careboxhealth.com
Study Locations
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Elizabeth Vale, Australia, 5112
- Recruiting
- Research Site
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Kogarah, Australia, 2217
- Recruiting
- Research Site
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Mitcham, Australia, 3132
- Recruiting
- Research Site
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South Brisbane, Australia, QL 4101
- Recruiting
- Research Site
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Woolloongabba, Australia, 4102
- Recruiting
- Research Site
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Graz, Austria, 8036
- Recruiting
- Research Site
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Wels-Grieskirchen, Austria, 4600
- Recruiting
- Research Site
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Wien, Austria, 1090
- Recruiting
- Research Site
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Brugge, Belgium, 8310
- Recruiting
- Research Site
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Edegem, Belgium, 2650
- Recruiting
- Research Site
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Gent, Belgium, 9000
- Recruiting
- Research Site
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Leuven, Belgium, 3000
- Recruiting
- Research Site
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Botucatu, Brazil, 18618-687
- Recruiting
- Research Site
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Brasilia, Brazil, 71681-603
- Recruiting
- Research Site
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Caxias do Sul, Brazil, 95070-560
- Recruiting
- Research Site
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Curitiba, Brazil, 80440-220
- Recruiting
- Research Site
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Curitiba, Brazil, 80250-060
- Recruiting
- Research Site
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Porto Alegre, Brazil, 90035-903
- Recruiting
- Research Site
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Porto Alegre, Brazil, 90050-170
- Withdrawn
- Research Site
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Sao Paulo, Brazil, 05.403-010
- Recruiting
- Research Site
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São José do Rio Preto, Brazil, 15090-000
- Recruiting
- Research Site
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Ontario
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Hamilton, Ontario, Canada, L8S 1G5
- Recruiting
- Research Site
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London, Ontario, Canada, N6A 5W9
- Recruiting
- Research Site
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Niagara Falls, Ontario, Canada, L2H 1H5
- Recruiting
- Research Site
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Ottawa, Ontario, Canada, K1G 6C6
- Recruiting
- Research Site
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Windsor, Ontario, Canada, N8X 2G1
- Recruiting
- Research Site
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Quebec
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Montreal, Quebec, Canada, H4A 3T2
- Recruiting
- Research Site
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Beijing, China, 100020
- Recruiting
- Research Site
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Beijing, China, 100050
- Recruiting
- Research Site
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Changsha, China, 430033
- Recruiting
- Research Site
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Guangzhou, China, 510080
- Recruiting
- Research Site
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Guangzhou, China, 510515
- Recruiting
- Research Site
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Hangzhou, China, 310052
- Recruiting
- Research Site
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Nanjing, China, 2100008
- Not yet recruiting
- Research Site
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Shanghai, China, 200025
- Recruiting
- Research Site
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Shanghai, China, 200000
- Recruiting
- Research Site
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Shenyang, China, 110004
- Not yet recruiting
- Research Site
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Tianjin, China, 300052
- Recruiting
- Research Site
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Wuhan, China, 430022
- Recruiting
- Research Site
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Zhengzhou, China
- Recruiting
- Research Site
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Brno, Czechia, 625 00
- Recruiting
- Research Site
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Hradec Kralove, Czechia, 500 12
- Recruiting
- Research Site
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Praha, Czechia, 190 00
- Recruiting
- Research Site
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Aalborg, Denmark, 9000
- Recruiting
- Research Site
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Køge, Denmark, 4600
- Recruiting
- Research Site
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Odense, Denmark, 5000
- Recruiting
- Research Site
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Helsinki, Finland, 00290
- Recruiting
- Research Site
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Helsinki, Finland, 00290
- Not yet recruiting
- Research Site
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Helsinki, Finland, 00100
- Withdrawn
- Research Site
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Hämeenlinna, Finland, 13530
- Withdrawn
- Research Site
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Kuopio, Finland, 70210
- Recruiting
- Research Site
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Turku, Finland, 20520
- Recruiting
- Research Site
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Frankfurt, Germany, 60590
- Not yet recruiting
- Research Site
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Landsberg, Germany, 86899
- Withdrawn
- Research Site
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München, Germany, 81675
- Recruiting
- Research Site
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München, Germany, 80337
- Withdrawn
- Research Site
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Athens, Greece, 12462
- Recruiting
- Research Site
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Athens, Greece, 11527
- Recruiting
- Research Site
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Athens, Greece, 11527, GR
- Recruiting
- Research Site
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Athens, Greece, 11521
- Recruiting
- Research Site
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Thessaloniki, Greece, 56429
- Recruiting
- Research Site
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Haifa, Israel, 31048
- Recruiting
- Research Site
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Holon, Israel, 58100
- Recruiting
- Research Site
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Jerusalem, Israel, 91120
- Not yet recruiting
- Research Site
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Petah Tikva, Israel, 4920235
- Recruiting
- Research Site
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Petah Tikva, Israel, 4941492
- Recruiting
- Research Site
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Tel Aviv, Israel, 62748
- Recruiting
- Research Site
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Tel Aviv, Israel, 6423906
- Recruiting
- Research Site
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Tel Hashomer, Israel, 52620
- Recruiting
- Research Site
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Bologna, Italy, 40138
- Recruiting
- Research Site
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Milano, Italy, 20162
- Recruiting
- Research Site
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Napoli, Italy, 80131
- Recruiting
- Research Site
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Napoli, Italy, 80131
- Withdrawn
- Research Site
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Padova, Italy, 35128
- Recruiting
- Research Site
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Pisa, Italy, 56124
- Recruiting
- Research Site
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Roma, Italy, 00168
- Recruiting
- Research Site
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Roma, Italy, 00161
- Recruiting
- Research Site
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Rozzano, Italy, 20089
- Recruiting
- Research Site
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Verona, Italy, 37134
- Recruiting
- Research Site
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Akita-shi, Japan, 010-8543
- Recruiting
- Research Site
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Fukuoka-shi, Japan, 812-8582
- Recruiting
- Research Site
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Hiroshima-shi, Japan, 734-8551
- Not yet recruiting
- Research Site
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Isehara-shi, Japan, 259-1193
- Recruiting
- Research Site
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Kawasaki-shi, Japan, 211-0063
- Recruiting
- Research Site
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Kitakyushu-shi, Japan, 802-0077
- Recruiting
- Research Site
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Maebashi-shi, Japan, 371-8511
- Recruiting
- Research Site
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Minato-ku, Japan, 105-8471
- Withdrawn
- Research Site
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Minato-ku, Japan, 108-8329
- Recruiting
- Research Site
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Osaka, Japan, 545-8586
- Recruiting
- Research Site
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Shinjuku-ku, Japan, 160-8582
- Recruiting
- Research Site
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Shinjuku-ku, Japan, 162-8655
- Not yet recruiting
- Research Site
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Yamagata-shi, Japan, 990-9585
- Recruiting
- Research Site
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Amsterdam, Netherlands, 1081 HV
- Recruiting
- Research Site
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Nijmegen, Netherlands, 6525 GA
- Recruiting
- Research Site
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Rotterdam, Netherlands, 3015 GD
- Recruiting
- Research Site
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Grafton, New Zealand, 1023
- Recruiting
- Research Site
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Hamilton, New Zealand, 3204
- Recruiting
- Research Site
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Newtown, New Zealand, 6021
- Recruiting
- Research Site
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Otahuhu, New Zealand, 2025
- Recruiting
- Research Site
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Lørenskog, Norway, 1478
- Recruiting
- Research Site
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Lørenskog, Norway, N-1478
- Recruiting
- Research Site
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Oslo, Norway, 0450
- Recruiting
- Research Site
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Oslo, Norway, NO0424
- Withdrawn
- Research Site
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Tromsø, Norway, N-9038
- Recruiting
- Research Site
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Ålesund, Norway, 6026
- Recruiting
- Research Site
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Kosice, Slovakia, 04013
- Recruiting
- Research Site
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Martin, Slovakia, 03601
- Recruiting
- Research Site
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Barcelona, Spain, 08035
- Recruiting
- Research Site
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Barcelona, Spain, 08036
- Recruiting
- Research Site
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Bilbao (Vizcaya), Spain, 48013
- Withdrawn
- Research Site
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Madrid, Spain, 28007
- Recruiting
- Research Site
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Madrid, Spain, 28006
- Recruiting
- Research Site
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Madrid, Spain, 28031
- Recruiting
- Research Site
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Pamplona, Spain, 31008
- Recruiting
- Research Site
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Sevilla, Spain, 41013
- Recruiting
- Research Site
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Sevilla, Spain, 41009
- Recruiting
- Research Site
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Tomelloso, Spain, 13700
- Recruiting
- Research Site
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Stockholm, Sweden, 171 76
- Recruiting
- Research Site
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Stockholm, Sweden, 17164
- Recruiting
- Research Site
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Trollhättan, Sweden, 461 73
- Recruiting
- Research Site
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Uppsala, Sweden, 751 85
- Recruiting
- Research Site
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Brighton, United Kingdom, BN2 1ES
- Withdrawn
- Research Site
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London, United Kingdom, SW17 0QT
- Not yet recruiting
- Research Site
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London, United Kingdom, WC1N 3JH
- Not yet recruiting
- Research Site
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Arizona
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Phoenix, Arizona, United States, 85016
- Recruiting
- Research Site
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Arkansas
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Little Rock, Arkansas, United States, 72202
- Recruiting
- Research Site
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California
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Los Angeles, California, United States, 90033
- Recruiting
- Research Site
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Colorado
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Aurora, Colorado, United States, 80045
- Not yet recruiting
- Research Site
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Florida
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Inverness, Florida, United States, 34452
- Completed
- Research Site
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Jacksonville, Florida, United States, 32256
- Recruiting
- Research Site
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Saint Augustine, Florida, United States, 32086
- Completed
- Research Site
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Georgia
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Atlanta, Georgia, United States, 30322
- Withdrawn
- Research Site
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Illinois
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Chicago, Illinois, United States, 60611
- Withdrawn
- Research Site
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Normal, Illinois, United States, 61761
- Recruiting
- Research Site
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Iowa
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Iowa City, Iowa, United States, 52242
- Recruiting
- Research Site
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Kansas
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Topeka, Kansas, United States, 66606
- Recruiting
- Research Site
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Maryland
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White Marsh, Maryland, United States, 21162
- Recruiting
- Research Site
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Massachusetts
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Boston, Massachusetts, United States, 02111
- Recruiting
- Research Site
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Michigan
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Chesterfield, Michigan, United States, 48047
- Recruiting
- Research Site
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Nebraska
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Lincoln, Nebraska, United States, 68503
- Recruiting
- Research Site
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New Jersey
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Teaneck, New Jersey, United States, 07666
- Recruiting
- Research Site
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New York
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Brooklyn, New York, United States, 11235
- Recruiting
- Research Site
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North Carolina
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Chapel Hill, North Carolina, United States, 27599
- Recruiting
- Research Site
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Winston-Salem, North Carolina, United States, 27157
- Withdrawn
- Research Site
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Ohio
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Cincinnati, Ohio, United States, 45229
- Recruiting
- Research Site
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Pennsylvania
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Philadelphia, Pennsylvania, United States, 19104
- Recruiting
- Research Site
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Smithfield, Pennsylvania, United States, 15478
- Recruiting
- Research Site
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South Carolina
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Greenville, South Carolina, United States, 29615
- Withdrawn
- Research Site
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Tennessee
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Nashville, Tennessee, United States, 37232
- Recruiting
- Research Site
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Texas
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Houston, Texas, United States, 77030
- Recruiting
- Research Site
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Utah
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Salt Lake City, Utah, United States, 84132
- Recruiting
- Research Site
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Salt Lake City, Utah, United States, 84107
- Suspended
- Research Site
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Virginia
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Charlottesville, Virginia, United States, 22908
- Withdrawn
- Research Site
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Participant must be 12 to 80 years of age inclusive, at the time of signing the informed consent/assent.
- Weight ≥ 40 kg at Visit 1
- Established diagnosis of EoE with a previous EGD and esophageal biopsy confirming a diagnosis of EoE.
- Participants who have symptomatic EoE as defined by a history of on average at least 2 episodes of dysphagia (any severity of food going down slowly or being stuck in the throat) per week in the 4 weeks prior to Visit 1.
- Must remain on a stabilized diet for at least 8 weeks prior to Visit 1 and during the course of the study (stable diet is defined as no initiation of single or multiple elimination diets or reintroduction of previously eliminated food groups).
- May be on any background PPI and/or STC, during the course of the study, as long as background medications have been stable for at least 8 weeks prior to the screening/run-in period (Visit 1) and there is agreement not to change background medication or dosage unless medically indicated, during the screening/run-in and treatment period.
- Participants currently on leukotriene inhibitors and/or steroid treatments for asthma or allergies that are inhaled or administered intranasally, must report a stable dose for at least 4 weeks prior to the screening/run-in period (Visit 1).
- If a medication for EoE (for example PPI and/or STC) is discontinued prior to the screening/run-in, there should be a washout period of at least 8 weeks prior to Visit 1. Discontinuation of any marketed biologic (monoclonal or polyclonal antibody) should have a washout period of 4 months or 5 half-lives prior to Visit 1, whichever is longer.
- Participants should have previously documented standard of care treatment, which could include PPI and/or STC and/or diet.
Exclusion Criteria:
- Other gastrointestinal disorders such as active Helicobacter pylori infection, history of achalasia, esophageal varices, Crohn's disease, ulcerative colitis, inflammatory bowel disease, celiac disease, eosinophilic enteritis, colitis, diverticulitis, irritable bowel syndrome, or other clinically significant gastrointestinal conditions as per Investigator discretion.
- Esophageal stricture that prevents the easy passage of a standard endoscope or any critical esophageal stricture that requires dilation at screening.
- Use of a feeding tube, or having a pattern of not eating solid food >3 days of week. Solid food is defined as food that requires chewing before swallowing.
- Hypereosinophilic syndrome
- EGPA vasculitis
- Esophageal dilation performed within 8 weeks prior to screening.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Tezepelumab Low Dose
Tezepelumab subcutaneous injections, in accessorised pre-filled syringes
|
Tezepelumab subcutaneous injection
|
Experimental: Tezepelumab High Dose
Tezepelumab subcutaneous injections, in accessorised pre-filled syringes
|
Tezepelumab subcutaneous injection
|
Placebo Comparator: Placebo
Placebo subcutaneous injections, in accessorised pre-filled syringes
|
Placebo subcutaneous injection
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change from baseline in DSQ (Dysphagia Symptom Questionnaire) score
Time Frame: Week 24
|
The Dysphagia Symptom Questionnaire (DSQ) captures the presence and severity of dysphagia symptoms in the past day in a 4-item questionnaire.
The DSQ score is calculated over 14-day periods and ranges from 0 to 84, with a lower score indicating less severe dysphagia.
|
Week 24
|
Histologic response of peak esophageal eosinophil per HPF count of ≤ 6 across all available esophageal levels
Time Frame: Week 24
|
Peak esophageal eosinophil count per HPF determined by histological analysis of 2-4 biopsies from each of the proximal, mid, and distal esophagus.
|
Week 24
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change from baseline in EoE EREFS (Endoscopic reference score )
Time Frame: Week 24, Week 52
|
The EoE EREFS is a scoring system for assessing the presence and severity of the major endoscopic signs of EoE, including esophageal edema, rings, exudates, furrows, and stricture. EoE endoscopic appearances will be analyzed by the EoE-EREFS, a scoring system for inflammatory and fibrostenotic features of the disease. Proximal and distal esophageal areas will be scored, with the score for each region ranging from 0 to 9, and the overall score ranging from 0 to 18. Higher scores indicate more extensive disease. |
Week 24, Week 52
|
Change from baseline in EoE-HSS (Histologic scoring system) grade score
Time Frame: Week 24
|
EoE HSS is a histology scoring system for esophageal biopsies that evaluates 8 features: eosinophil density, basal zone hyperplasia, eosinophil abscesses, eosinophil surface layering, dilated intercellular spaces, surface epithelial alteration, dyskeratotic epithelial cells, and lamina propria fibrosis.
Severity (grade) and extent (stage) of abnormalities are scored using a 4-point scale (0 normal; 3 maximum change).
|
Week 24
|
Change from baseline in EoE-HSS (Histologic scoring system) stage score
Time Frame: Week 24
|
EoE HSS is a histology scoring system for esophageal biopsies that evaluates 8 features: eosinophil density, basal zone hyperplasia, eosinophil abscesses, eosinophil surface layering, dilated intercellular spaces, surface epithelial alteration, dyskeratotic epithelial cells, and lamina propria fibrosis.
Severity (grade) and extent (stage) of abnormalities are scored using a 4-point scale (0 normal; 3 maximum change).
|
Week 24
|
Histologic response of peak esophageal eosinophil per HPF count of ≤ 6 across all available esophageal levels
Time Frame: Week 52
|
The peak esophageal eosinophil count is based on 2-4 esophageal biopsies from 2-3 locations.
|
Week 52
|
Change from baseline in DSQ (Dysphagia Symptom Questionnaire) score
Time Frame: Week 52
|
The Dysphagia Symptom Questionnaire (DSQ) captures the presence and severity of dysphagia symptoms in the past day in a 4-item questionnaire.
The DSQ score is calculated over 14-day periods and ranges from 0 to 84, with a lower score indicating less severe dysphagia.
|
Week 52
|
Response of achieving clinico-histological remission
Time Frame: Week 24, Week 52
|
Achieving pre-determined histologic and symptomatic remission thresholds.
|
Week 24, Week 52
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change from baseline in peak esophageal eosinophil count (EOS/HPF)
Time Frame: Week 24, Week 52
|
The EOS/HPF is a method of evaluating esophageal inflammation by histological response of eosinophils per high power field (HPF).
|
Week 24, Week 52
|
Changes from baseline in PEESS Module at Week 24 (adolescents only).
Time Frame: Week 24, Week 52
|
The PEESS is an 20-item assessment of EoE symptom severity and frequency validated for use in patients aged 8 to 18 years.
The overall score ranges from 0 to 80, with higher scores representing more severe and frequent EoE symptoms.
|
Week 24, Week 52
|
Change from baseline in EoE-HSS (Histologic scoring system) stage score
Time Frame: Week 52
|
EoE HSS is a histology scoring system for esophageal biopsies that evaluates 8 features: eosinophil density, basal zone hyperplasia, eosinophil abscesses, eosinophil surface layering, dilated intercellular spaces, surface epithelial alteration, dyskeratotic epithelial cells, and lamina propria fibrosis.
Extent (stage) of abnormalities is scored using a 4-point scale (0 normal; 3 maximum change).
|
Week 52
|
Change from baseline in EoE-HSS (Histologic scoring system) grade score
Time Frame: Week 52
|
EoE HSS is a histology scoring system for esophageal biopsies that evaluates 8 features: eosinophil density, basal zone hyperplasia, eosinophil abscesses, eosinophil surface layering, dilated intercellular spaces, surface epithelial alteration, dyskeratotic epithelial cells, and lamina propria fibrosis.
Severity (grade) of abnormalities is scored using a 4-point scale (0 normal; 3 maximum change).
|
Week 52
|
Serum tezepelumab concentration
Time Frame: Weeks 0, 4, 12, 24, and 52
|
PK samples will be collected pre-dose.
Tezepelumab concentration in serum is determined using bioanalytical method.
|
Weeks 0, 4, 12, 24, and 52
|
Anti-drug antibody
Time Frame: Weeks 0, 12, 24, and 52
|
Anti-drug antibody is determined using bioanalytical method.
|
Weeks 0, 12, 24, and 52
|
Collaborators and Investigators
Sponsor
Collaborators
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Digestive System Diseases
- Immune System Diseases
- Hypersensitivity, Immediate
- Hematologic Diseases
- Gastrointestinal Diseases
- Gastroenteritis
- Hypersensitivity
- Esophageal Diseases
- Leukocyte Disorders
- Eosinophilia
- Eosinophilic Esophagitis
- Esophagitis
- Physiological Effects of Drugs
- Immunologic Factors
- Antibodies, Monoclonal
Other Study ID Numbers
- D5244C00001
- 2022-001294-31 (EudraCT Number)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal.
All request will be evaluated as per the AZ disclosure commitment:
https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.
IPD Sharing Time Frame
IPD Sharing Access Criteria
IPD Sharing Supporting Information Type
- STUDY_PROTOCOL
- SAP
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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