Ulcerative ColitisPhase 2SWIFTNCT06290934
Study of GS-1427 in Participants With Moderately to Severely Active Ulcerative Colitis
A Phase 2 study testing emvistegrast in people with Ulcerative Colitis, run by Gilead Sciences at 181 sites in 22 countries.
Trial summary
The goal of this study is to learn if emvistegrast (formerly GS-1427) is effective in treating participants with moderate to severe ulcerative colitis. The study will compare participants in different treatment groups treated with emvistegrast with participants treated with placebo. Read more about this study
- Who is it for?
- Ages 18 to 75 years
- Conditions the study is for
- Ulcerative Colitis
- What is being tested?
- emvistegrast
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 228 participants
- Where
- 181 sitesin 22 countries
- Study dates
- 27 Mar 2024to Apr 2028
- Phase
- Phase 2
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Individuals have Ulcerative Colitis (UC) with symptoms of at least 90 days duration before randomization, with the diagnosis confirmed by endoscopy and histology at any time prior to randomization. Documentation of endoscopy and histology consistent with the diagnosis of UC must be available in the source documents.
- Individuals have UC with minimum disease extent of 15 cm from the anal verge.
- Individuals have moderately to severely active UC as determined by endoscopy occurring during screening with a total modified Mayo Clinic Score (mMCS) of 5 to 9 points, including a centrally read endoscopic subscore of at least 2.
- Individuals have an inadequate response or loss of response or are intolerant to at least 1 of the following UC treatments: corticosteroids, immunomodulators, or advanced therapy.
- Individuals have an inadequate response or loss of response or are intolerant to < 3 AT mechanisms of action for UC (use of 2 or more AT with the same mechanism of action, eg, 2 TNF-α inhibitors, counts as 1 mechanism of action)
Who cannot join
- Have a current diagnosis of Crohn's Disease (CD) or clinical findings suggestive of CD, diagnosis of indeterminate colitis due to etiologies such as an enteric pathogen, or lymphocytic or collagenous colitis.
- Have a current diagnosis of toxic megacolon, symptomatic colonic stricture, acute severe colitis, fulminant colitis, or abdominal abscess at screening or randomization.
- Have any history of exposure to vedolizumab or other integrin antagonists
- Requirement for ongoing therapy with or use of any prohibited medication as specified in the protocol
- Note: Other protocol defined Inclusion/Exclusion criteria may apply
Trial locations and contacts
181 sites in 22 countries.
181 sites in 22 countries
United States57 sites
Johns Hopkins Bayview Medical Center
Baltimore, Maryland, 21224
Dayton Gastroenterology, LLC
Beavercreek, Ohio, 45440
N.Y. Total Medical Care, PC
Brooklyn, New York, 11215
Om Research LLC
Camarillo, California, 93010
University of Virginia Medical Center
Charlottesville, Virginia, 22908
The University of Chicago Medical Center (Duchossois Center for Advanced Medicine)
Chicago, Illinois, 60637
Gastro Health Research
Cincinnati, Ohio, 45219
Gastro Florida
Clearwater, Florida, 33756
Peak Gastroenterology Associates
Colorado Springs, Colorado, 80907
Peak Gastroenterology Associates
Colorado Springs, Colorado, 80921
Gastroenterology Research of San Antonio
Fredericksburg, Texas, 78624
Tandem - Allied Clinical Research, LLC
Freehold, New Jersey, 07728
VVCRD Research
Garden Grove, California, 92845
Amel Med Llc
Georgetown, Texas, 78628
NYU Langone Long Island Clinical Research Associates
Great Neck, New York, 11021
Carolina Research
Greenville, North Carolina, 27834
Penn State University Milton S. Hershey Medical Center
Hershey, Pennsylvania, 17033
Best Quality Research, Inc
Hialeah, Florida, 33016
United Research Institute LLC
Hialeah, Florida, 33016
310 Clinical Research
Inglewood, California, 90301
Skyline gastroenterology of west Tennessee
Jackson, Tennessee, 38301
US San Diego Health System
La Jolla, California, 92037
Om Research LLC
Lancaster, California, 93534
Emeritas Research Group
Lansdowne Town Center, Virginia, 20176
NexGen Research
Lima, Ohio, 45801
Robley Rex VA Medical Center
Louisville, Kentucky, 40206
Lenox Hill Hospital
Manhasset, New York, 11030
GI Alliance - Mansfield
Mansfield, Texas, 76063
University of Miami Hospital and Clinics, Sylvester Comprehensive Cancer Center(Drug shipment)-Research Pharmacy
Miami, Florida, 33136
Medical Professional Clinical Research Center, Inc.
Miami, Florida, 33155
Blessed Health Care & Research, Inc
Miami, Florida, 33173
Quality Medical Research
Nashville, Tennessee, 37211
Vanderbilt Inflammatory Bowel Disease Clinic
Nashville, Tennessee, 37232
Alliance Clinical Research of Tampa, LLC
New Port Richey, Florida, 34653
NYU Grossman School of Medicne
New York, New York, 10016
UCSF Benioff Children's Hospital Oakland
Oakland, California, 94609
Digestive and Liver Center of Florida, LLC
Orlando, Florida, 32825
Clinical Research of Osceola
Orlando, Florida, 34741
Gastroenterology Associates of North Mississippi
Oxford, Mississippi, 38655
Onyx Clinical Research (Clinic Location)
Peoria, Arizona, 85381
Onyx Clinical Research
Peoria, Illinois, 85381
Gastroenterology Consultants of Southwest Virginia
Roanoke, Virginia, 24014
Mayo Clinic
Rochester, Minnesota, 55905
University Of California, Davis
Sacramento, California, 95817
Clinical Associates in Research Therapeutics of America, LLC
San Antonio, Texas, 78212
Southern Star Research Institute, LLC.
San Antonio, Texas, 78229
SDG Clinical Research, LLC
San Diego, California, 92103
Acclaim Clinical Research
San Diego, California, 92120
Louisiana Research Center, LLC
Shreveport, Louisiana, 71105
EBGS Clinical Research Center
Snellville, Georgia, 30078
Piedmont Healthcare
Statesville, North Carolina, 28625
Digestive Health Specialists (Clinic Visits)
Tupelo, Mississippi, 38801
Tyler Research Institute, LLC.
Tyler, Texas, 75701
St Charles Clinical Research
Weldon Spring, Missouri, 63304
Gastro Intestinal Research Institute of Northern Ohio, LLC
Westlake, Ohio, 44145
Encore Medical Research of Weston, LLC
Weston, Florida, 33331
Gastroenterology Associates of Western Michigan, PLC d.b.a. West Michigan Clinical Research Center.
Wyoming, Michigan, 49519
Poland22 sites
Centrum Medyczne "Medis"
Bydgoszcz, 85-168
NZOZ Holsamed - Oddzial Libero
Katowice, 40-600
Centrum Medyczne Plejady Magdalena Celinska Loewenhoff Michal Zolnowski sp.k.
Krakow, 30-363
Krakowskie Centrum Medyczne Sp. z o.o.
Krakow, 31-501
Centrum Opieki Zdrowotnej Orkan-Med Stec-Michalska Sp. J.
Ksawerów, 95-054
Medrise Sp. z o.o.
Lublin, 20-582
Centrum Innowacyjnych Terapii Sp. z o.o.
Mazowieckie, 05-500
EMC Instytut Medyczny SA PL Certus Szpital Nr 1 PL Certus Ambulatorium
Poznan, 60-309
Gabinety Lekarskie RIVERMED
Poznan, 61-441
Centrum Medyczne Medyk Sp. z 0.0. sp.k.
Rzeszów, 35-301
Endoskopia Sp. z.o.o.
Sopot, 81-756
Sonomed Sp. z 0.0.
Szczecin, 70-361
Twoja Przychodnia Szczecinskie Centrum Medyczne Sp. zo.o.
Szczecin, 71-434
Gastromed Sp. z.o.o.
Torun, 87-100
H-T Centrum Medyczne - Endoterapia
Tychy, 43-100
Bodyclinic Sp. z o.o. sp.k.
Warsaw, 00-332
Przychodnia care Access Warsawa
Warsaw, 00-719
Medical Network Sp. z 0.0. WIP Warsaw IBD Point Profesor Kierkus
Warsaw, 00-728
Niepubliczny Zaklad Opieki Zdrowotnej Vivamed Jadwiga Miecz
Warsaw, 03-580
FutureMeds Wrocław
Wroclaw, 50-008
Centrum Medyczne Oporow
Wroclaw, 52416
Przychodnia Euromedicare szpital euromedicare
Wroclaw, 54-144
Italy12 sites
Azienda Ospedaliero-Universitaria Di Bologna IRCCS
Bologna, 40138
Azienda Ospedaliera Brotzu - P.O. San Michele
Cagliari, 09047
AOU "Renato Dulbecco" - Digestive Physiopathology Unit
Catanzaro, 88100
San Raffaele Hospital IRCCS
Milan, 20089
IRCCS Ospedale Sacro Cuore Don Calabria
Negrar, 37024
Azienda Ospedale Universita di Padova
Padova, 35100
AOOR Villa Sofia- Cervello
Palermo, 90146
Campus Biomedico University Hospital Foundation
Roma, 00128
Ospedale Sandro Pertini
Roma, 157
IRCCS Policlinico San Donato
San Donato Milanese, 20097
Ospedale Casa Sollievo della Sofferenza IRCCS, Opera di San Pio da Pietrelcina
San Giovanni Rotondo, 71013
Azienda Ospedaliera Ordine Mauriziano di Torino
Torino, 10128
South Korea12 sites
Inje University Haeundae Paik Hospital IRB
Busan, 48108
Kyungpook National University Hospital
Daegu, 41944
The Catholic University of Korea Daejeon St.Mary's Hospital
Daejeon, 34943
Kyung Hee University Hospital
Guri-si, 471-701
Kangbuk Samsung Hospital
Jongno-Gu, 03181
Yeungnam University Hospital
Nam-Gu, 42415
Hanyang University Seoul Hospital
Seongdong-gu, 4763
Asan Medical Center
Seoul, 05505
Samsung Medical Center
Seoul, 6351
The Catholic University of Korea, Seoul St. Mary's Hospital
Seoul, 6591
The Catholic University of Korea
Suwon, 16247
Yonsei University Wonju Severance Christian Hospital
Wŏnju, 220-701
Romania11 sites
Spitalul Universitar De Urgenta Militar Central Dr. Carol Davila
Bucharest, 010825
Spitalul Clinic Colentina
Bucharest, 020125
Institutul Clinic Fundeni
Bucharest, 022328
Centrul Medical Medicum S.R.L.
Bucharest, 031864
Centrul Medical Monza S.R.L
Bucharest, 11658
Spitalul Clinic Judetean De Urgenta Cluj-Napoca
Cluj-Napoca, 3-5
Institutul Regional De Gastroenterologie Hepatologie Prof. Dr. Octavian Fodor Cluj-Napoca
Cluj-Napoca, 400132
Gastromed S.R.L
Constanța, 900178
Spitalul Judetean de Urgenta Satu Mare
Satu Mare, 440055
Asociatia Oncohelp
Timișoara, 300002
Centrul De Gastroenterologie Dr. Goldis S.R.L
Timișoara, 300002
Australia8 sites
Monash Health - Monash Medical Centre
Clayton, Victoria, 3168
Northern Hospital - Northern Health
Epping, Victoria, 3076
Saint Vincent's Hospital Melbourne
Fitzroy, Victoria, 3065
Footscray Hospital - Westerm Health
Footscray, Victoria, 3011
Mater Adult Hospital - Mater Misericordiae Ltd and Mater Research Ltd
South Brisbane, Queensland, 4101
Macquarie University
Sydney, New South Wales, 2109
The Queen Elizabeth Hospital
Woodville, South Australia, 5011
Princess Alexandra Hospital - Metro South Health
Woolloongabba, Queensland, 4102
Taiwan8 sites
Changhua Christian Hospital
Changhua, 505
Kaohsiung Medical University Chung-Ho Memorial Hospital
Kaohsiung City, 807
China Medical University Hospital
Taichung, 404327
Taichung Veterans General Hospital
Taichung, 40705
National Taiwan University Hospital, 7, Chung-Shan South Road, Taipei, ZIP 100
Taipei, 100
MacKay Memorial Hospital
Taipei, 10449
Taipei Veterans General Hospital
Taipei, 11217
Chang Gung Memorial Hospital (CGMH)
Taoyuan City, 333
Malaysia7 sites
Hospital Sultanah Aminah
Johor Bahru, 80100
Hospital Universiti Sains Malaysia
Kelantan, 16150
Hospital Queen Elizabeth
Kota Kinabalu, 88586
Hospital Sultan Idris Shah Serdang
Kuala Selangor, 43000
Hospital Tengku Ampuan Afzan
Kuantan, 25100
Sultan Ahmad Shah Medical Centre @IIUM
Kuantan, 25200
University Malaya Medical Centre
Petaling Jaya, 50603
Serbia6 sites
Clinical Hospital Center "Bezanijska Kosa", Clinic for Internal Medicine, Gastroenterology and Hepatology Department
Belgrade, 11000
Clinical Hospital Center "Dr Dragisa Misovic - Dedinje" Clinic for Intemal Medicine, Gastroentero logy and Hepatology Department
Belgrade, 11000
Clinical Hospital Center "Zvezdara" - Belgrade, Clinic for Internal Diseases Clinical Department of Gastroenterology and Hepatology
Belgrade, 11000
University Clinical Center of Serbia, Clinic for Gastroenterology and Hepatology
Belgrade, 112108
University Clinical Center Kragujevac, Clinic for Gastroenterology and Hepatology
Kragujevac, 34000
General Hospital "Djordje Joanovic" Zrenjanin,Internal Medicine Sector - Internal Department
Zrenjanin, 23000
United Kingdom6 sites
Southmead Hospital - North Bristol Trust Clinical Research Centre
Bristol, BS10 5NB
Fairfield General Hospital, Northerncare Alliance NHS Foundation Trust
Bury, BL9 7TD
Cambridge University Hospital NHS Trust, Addenbrookes Hospital
Cambridge, CB2 0QQ
Synexus Clinical Research Centre
Cardiff, CF159SS
King's College Hospital
London, SE5 9RS
Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital
North Shields, NE29 8NH
Spain5 sites
Hospital Arquitecto Marcide. Complejo Hospitalario Universitario de Ferrol
Ferrol, 15405
Hospital Universitario Juan Ramon Jimenez
Huelva, 21005
Hospital Universitario Nuestra Senora de Candelaria
Santa Cruz de Tenerife, 38010
Hospital Universitario Virgen Macarena
Seville, 41009
Hospital Universitari i Politecnic La Fe
Valencia, 46026
Germany4 sites
Universitatsklinikum Carl Gustav Carus an der TU Dresden, Medizinische Klinik und Poliklinik |
Dresden, 01307
Studiengesellschaft BSF UG
Halle, 06108
University Hospital Schleswig-Holstein, Clinic for Internal Medicine
Kiel, 24105
Ulm University Hospital, Centre for Internal Medicine I
Ulm, 89081
Hungary4 sites
Békés Varmegye Kozponti Korhaz, dr Rethy Pal 4. Belgyégyaszat - Gasztroenterologia
Békéscsaba, 5600
Semmelweis Egyetem AOK
Budapest, 1085
Semmelweis Egyetem Általanos Orvostudományi Kar
Budapest, 1085
Clinexpert Gyógycentrum
Budapest, 1125
Austria3 sites
Medical University Innsbruck, University Hospital for Internal Medicine I
Innsbruck, 6020
Regional Hospital Salzburg, University Clinic for Internal Medicine I
Salzburg, A-5020
Medical University Vienna, Department of Internal Medicine Division Gastroenterology and Hepatology
Vienna, 1090
Belgium3 sites
Imeldaziekenhuis
Bonheiden, 2820
AZ Groeninge
Kortrijk, 8500
Vitaz
Sint-Niklaas, 9100
France3 sites
Centre Hospitalier Universitaire Grenoble Alpes(CHUGA) - Service Hepato-Gastroentérologie, 7éme unité D
La Tronche, 38700
CHU Nantes Gastroenterology department
Nantes, 44000
Hospices Civilis de Lyon - Hospital Lyon Sud Department of Gastroenterology
Pierre-Bénite, 69495
New Zealand3 sites
Pacific Clinical Research Network - Auckland
Auckland, 0622
Christchurch Hospital
Christchurch, 8011
Health New Zealand - Te Whatu Ora Southern, Gastroenterology Department, Dunedin Hospital
Dunedin, 9012
Czechia2 sites
PreventaMed, s.r.o.
Olomouc, 779 00
Nemocnice Slany
Slaný, 274 01
Hong Kong2 sites
Queen Mary Hospital
Hong Kong, 999077
Princess Margaret Hospital
Hong Kong
Moldova1 site
PMSI Clinical Republican Hospital "Timofei Molneaga"
Chisinau, MD-2025
About this study
Official title: A Phase 2, Randomized, Double-Blind, Placebo-Controlled, Multicenter, Dose-Ranging Study Evaluating the Efficacy and Safety of GS-1427 in Adult Participants With Moderately to Severely Active Ulcerative Colitis (UC)
The goal of this study is to learn if emvistegrast (formerly GS-1427) is effective in treating participants with moderate to severe ulcerative colitis. The study will compare participants in different treatment groups treated with emvistegrast with participants treated with placebo.
The primary objective of this study is to assess the efficacy of emvistegrast, compared with placebo control, in achieving clinical response at Week 12.
- Conditions
- Ulcerative Colitis
- Being tested
- emvistegrast, Placebo-to-match emvistegrast
- Medical subject headings
- Colitis, Ulcerative
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
emvistegrastDrug
Also called GS-1427
Administered orally
Placebo-to-match emvistegrastDrug
Administered orally
| Study group | Role | What they receive |
|---|---|---|
| Part A, Part B, Part C: Emvistegrast Dose A | Experimental | Participants will receive emvistegrast Dose A Day 1 through Week 12 (Part A).
Participants who complete the 12-week Part A treatment period will be eligible to continue and remain on the same dose of emvistegrast through Week 52 (Part B).
Participants who complete Part B of the study will continue onto Part C: Blinded treatment extension for an additional 64 weeks (through Week 116). Receives: Drug: emvistegrast |
| Part A, Part B, Part C: Emvistegrast Dose B | Experimental | Participants will receive emvistegrast Dose B Day 1 through Week 12 (Part A).
Participants who complete the 12-week Part A treatment period will be eligible to continue and remain on the same dose of emvistegrast through Week 52 (Part B).
Participants who complete Part B of the study will continue onto Part C: Blinded treatment extension for an additional 64 weeks (through Week 116). Receives: Drug: emvistegrast |
| Part A, Part B, Part C: Emvistegrast Dose C | Experimental | Participants will receive emvistegrast Dose C Day 1 through Week 12 (Part A).
Participants who complete the 12-week Part A treatment period will be eligible to continue and remain on the same dose of emvistegrast through Week 52 (Part B).
Participants who complete Part B of the study will continue onto Part C: blinded treatment extension for an additional 64 weeks (through Week 116). Receives: Drug: emvistegrast |
| Part A, Placebo; Part B, Part C: Emvistegrast | Experimental | Participants will receive Placebo to match emvistegrast Day 1 through Week 12 (Part A). Part A placebo participants will be eligible to undergo re-randomization in a double-blind manner after endoscopy assessment at Week 12 to receive one of the emvistegrast dose A, B, or C treatments.
Participants will be eligible to continue and remain on the new dose through Week 52 (Part B). Participants who complete Part B of the study will continue onto Part C: blinded treatment extension for an additional 64 weeks (through Week 116). Receives: Drug: emvistegrast; Drug: Placebo-to-match emvistegrast |
What is being measured
The primary outcome is the main question the study is designed to answer.
Proportion of Participants Achieving Clinical Response at Week 12
Clinical response is defined as a decrease from baseline in the modified Mayo Clinic Score (mMCS) of ≥ 2 points and at least a 30% reduction from baseline, and a decrease in rectal bleeding subscore of ≥ 1 from baseline or an absolute rectal bleeding subscore of 0 or 1. The mMCS is a scoring system for assessment of Ulcerative Colitis (UC) activity and is composed of subscores from endoscopy (range: 0 to 3, where 0 = normal or inactive disease and 3 = severe disease (spontaneous bleeding, ulceration)), rectal bleeding (range: 0 to 3, where 0 = no blood seen and 3 = blood alone passes), and stool frequency (range: 0 to 3, where 0 = normal number of stools and 3 = at least 5 or more stools more than normal). Total score for mMCS ranges from 0 to 9 (sum of all subscores), with higher scores indicating higher disease activity.
Measured: Week 12
Secondary outcomes (8)
Incidence of Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), or Deaths.
Measured: First dose date up to 116 weeks plus 28 days
Incidence of Treatment-emergent Lab Abnormalities
Measured: First dose date up to 116 weeks plus 28 days
Proportion of Participants Achieving Clinical Remission at Week 12
Clinical remission is defined as a mMCS of ≤ 2, including a stool frequency subscore (SFS) ≤ 1 and not greater than baseline, rectal bleeding subscore of 0, and centrally read endoscopic subscore ≤ 1 (score of 1 modified to exclude friability).The mMCS is a scoring system for assessment of UC activity and is composed of subscores from endoscopy (range: 0 to 3, where 0 = normal or inactive disease and 3 = severe disease (spontaneous bleeding, ulceration)), rectal bleeding (range: 0 to 3, where 0 = no blood seen and 3 = blood alone passes), and stool frequency (range: 0 to 3, where 0 = normal number of stools and 3 = at least 5 or more stools more than normal). Total score for mMCS ranges from 0 to 9 (sum of all subscores), with higher scores indicating higher disease activity.
Measured: Week 12
Proportion of Participants Achieving Clinical Remission at Week 52
Clinical remission is defined as a mMCS of ≤ 2, including a stool frequency subscore (SFS) ≤ 1 and not greater than baseline, rectal bleeding subscore of 0, and centrally read endoscopic subscore ≤ 1 (score of 1 modified to exclude friability). The mMCS is a scoring system for assessment of UC activity and is composed of subscores from endoscopy (range: 0 to 3, where 0 = normal or inactive disease and 3 = severe disease (spontaneous bleeding, ulceration)), rectal bleeding (range: 0 to 3, where 0 = no blood seen and 3 = blood alone passes), and stool frequency (range: 0 to 3, where 0 = normal number of stools and 3 = at least 5 or more stools more than normal). Total score for mMCS ranges from 0 to 9 (sum of all subscores), with higher scores indicating higher disease activity.
Measured: Week 52
Proportion of Participants Achieving Histologic-endoscopic Mucosal Improvement at Week 12
Histologic-endoscopic mucosal improvement is a composite endpoint that uses different units of measure for histologic and endoscopic activities.Histologic activity is measured by the Geboes score with 6 grades:0,structural change(sub-grade:0.0-0.3);1,chronic inflammatory infiltrate(sub-grade:1.0-1.3);2,lamina propria neutrophils \& eosinophils(sub-grade:2A.0-2B.3);3,neutrophils in epithelium(sub-grade:3.0-3.3);4,crypt destruction(sub-grade:4.0-4.3); and 5,erosion or ulceration(sub-grade:5.0-5.4);final score range 0.0-5.4;higher scores indicate more severe inflammation.Endoscopic activity is measured by the Mayo Clinic Score Endoscopic subscores(range 0-3):0,normal or inactive disease;1,mild disease(erythema,decreased vascular pattern);2,moderate disease(marked erythema,lack of vascular pattern,friability,erosions), and 3,severe disease(spontaneous bleeding,ulceration).Histologic-endoscopic mucosal improvement is defined as achieving both Geboes score ≤ 3.1 and endoscopic subscore ≤ 1
Measured: Week 12
Proportion of Participants Achieving Mucosal Healing at Week 12
Mucosal healing is a composite endpoint that uses different units of measure for histologic and endoscopic activities. Histologic activity is measured by the Geboes score with 6 grades:0,structural change(sub-grade:0.0-0.3);1,chronic inflammatory infiltrate(sub-grade:1.0-1.3);2,lamina propria neutrophils \& eosinophils(sub-grade:2A.0-2B.3);3,neutrophils in epithelium(sub-grade:3.0-3.3);4,crypt destruction(sub-grade:4.0-4.3); and 5,erosion or ulceration(sub-grade:5.0-5.4);final score range 0.0-5.4;higher scores indicate more severe inflammation.Endoscopic activity is measured by the Mayo Clinic Score Endoscopic subscores(range 0-3):0,normal or inactive disease;1,mild disease(erythema,decreased vascular pattern);2,moderate disease(marked erythema,lack of vascular pattern,friability,erosions), and 3,severe disease(spontaneous bleeding,ulceration).Mucosal healing is defined as achieving both Geboes score ≤ 2B.1 and endoscopic subscore ≤ 1.
Measured: Week 12
Proportion of Participants Achieving Endoscopic Improvement at Week 12
Endoscopic improvement is defined as an endoscopic subscore of ≤ 1. Endoscopic subscore is a part of the modified Mayo Clinic Score which is a scoring system for assessment of UC activity. Endoscopic subscore range: 0 to 3, where 0 = normal or inactive disease, 1 = mild disease (erythema, decreased vascular pattern), 2 = moderate disease (marked erythema, lack of vascular pattern, friability, erosions), and 3 = severe disease (spontaneous bleeding, ulceration).
Measured: Week 12
To Assess the Efficacy of Emvistegrast in Achieving Partial Modified Mayo Clinic Score (mMCS) remission at Week 52
Partial mMCS remission is defined as a SFS ≤ 1 and rectal bleeding subscore of 0.
Measured: Week 52
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted4 Mar 2024
- Study start27 Mar 2024
- Primary completion4 Mar 2026
- Study completionApr 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Ulcerative ColitisStudies of the same condition, open and under way.
- More trials run by Gilead SciencesThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Sequential
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 228 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Gilead Sciences
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Gilead Study Director, Study director, Gilead Sciences
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06290934
- Sponsor's protocol ID
- GS-US-409-5704
- Other IDs
- 2023-508304-38, 2023
- Acronym
- SWIFT
- Status last verified
- Apr 2026
- First submitted
- 16 Feb 2024
- Last updated
- 9 Apr 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 9 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 2, Randomized, Double-Blind, Placebo-Controlled, Multicenter, Dose-Ranging Study Evaluating the Efficacy and Safety of GS-1427 in Adult Participants With Moderately to Severely Active Ulcerative Colitis (UC)
- ClinicalTrials.gov ID
- NCT06290934
- Acronym / sponsor ID
- SWIFT / GS-US-409-5704
- Conditions
- Ulcerative Colitis
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 228 participants (estimated)
- Lead sponsor
- Gilead SciencesIndustry (pharma, biotech, devices)
- Study start
- 27 Mar 2024 (actual)
- Primary completion
- 4 Mar 2026 (actual)
- Study completion
- Apr 2028 (estimated)
- First posted
- 4 Mar 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this study is to learn if emvistegrast (formerly GS-1427) is effective in treating participants with moderate to severe ulcerative colitis. The study will compare participants in different treatment groups treated with emvistegrast with participants treated with placebo.
The primary objective of this study is to assess the efficacy of emvistegrast, compared with placebo control, in achieving clinical response at Week 12.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Sequential
- Masking
- Double blind (participant, investigator)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Part A, Part B, Part C: Emvistegrast Dose A | Experimental | Drug: emvistegrastParticipants will receive emvistegrast Dose A Day 1 through Week 12 (Part A). Participants who complete the 12-week Part A treatment period will be eligible to continue and remain on the same dose of emvistegrast through Week 52 (Part B). Participants who complete Part B of the study will continue onto Part C: Blinded treatment extension for an additional 64 weeks (through Week 116). |
| Part A, Part B, Part C: Emvistegrast Dose B | Experimental | Drug: emvistegrastParticipants will receive emvistegrast Dose B Day 1 through Week 12 (Part A). Participants who complete the 12-week Part A treatment period will be eligible to continue and remain on the same dose of emvistegrast through Week 52 (Part B). Participants who complete Part B of the study will continue onto Part C: Blinded treatment extension for an additional 64 weeks (through Week 116). |
| Part A, Part B, Part C: Emvistegrast Dose C | Experimental | Drug: emvistegrastParticipants will receive emvistegrast Dose C Day 1 through Week 12 (Part A). Participants who complete the 12-week Part A treatment period will be eligible to continue and remain on the same dose of emvistegrast through Week 52 (Part B). Participants who complete Part B of the study will continue onto Part C: blinded treatment extension for an additional 64 weeks (through Week 116). |
| Part A, Placebo; Part B, Part C: Emvistegrast | Experimental | Drug: emvistegrast, Drug: Placebo-to-match emvistegrastParticipants will receive Placebo to match emvistegrast Day 1 through Week 12 (Part A). Part A placebo participants will be eligible to undergo re-randomization in a double-blind manner after endoscopy assessment at Week 12 to receive one of the emvistegrast dose A, B, or C treatments. Participants will be eligible to continue and remain on the new dose through Week 52 (Part B). Participants who complete Part B of the study will continue onto Part C: blinded treatment extension for an additional 64 weeks (through Week 116). |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Individuals have Ulcerative Colitis (UC) with symptoms of at least 90 days duration before randomization, with the diagnosis confirmed by endoscopy and histology at any time prior to randomization. Documentation of endoscopy and histology consistent with the diagnosis of UC must be available in the source documents.
- Individuals have UC with minimum disease extent of 15 cm from the anal verge.
- Individuals have moderately to severely active UC as determined by endoscopy occurring during screening with a total modified Mayo Clinic Score (mMCS) of 5 to 9 points, including a centrally read endoscopic subscore of at least 2.
- Individuals have an inadequate response or loss of response or are intolerant to at least 1 of the following UC treatments: corticosteroids, immunomodulators, or advanced therapy.
- Individuals have an inadequate response or loss of response or are intolerant to < 3 AT mechanisms of action for UC (use of 2 or more AT with the same mechanism of action, eg, 2 TNF-α inhibitors, counts as 1 mechanism of action)
Key exclusion criteria (5 listed)
- Have a current diagnosis of Crohn's Disease (CD) or clinical findings suggestive of CD, diagnosis of indeterminate colitis due to etiologies such as an enteric pathogen, or lymphocytic or collagenous colitis.
- Have a current diagnosis of toxic megacolon, symptomatic colonic stricture, acute severe colitis, fulminant colitis, or abdominal abscess at screening or randomization.
- Have any history of exposure to vedolizumab or other integrin antagonists
- Requirement for ongoing therapy with or use of any prohibited medication as specified in the protocol
- Note: Other protocol defined Inclusion/Exclusion criteria may apply
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| emvistegrastAlso: GS-1427Administered orally | Drug | Part A, Part B, Part C: Emvistegrast Dose A, Part A, Part B, Part C: Emvistegrast Dose B, Part A, Part B, Part C: Emvistegrast Dose C, Part A, Placebo; Part B, Part C: Emvistegrast |
| Placebo-to-match emvistegrastAdministered orally | Drug | Part A, Placebo; Part B, Part C: Emvistegrast |
Primary outcome
Proportion of Participants Achieving Clinical Response at Week 12
Time frame: Week 12
Clinical response is defined as a decrease from baseline in the modified Mayo Clinic Score (mMCS) of ≥ 2 points and at least a 30% reduction from baseline, and a decrease in rectal bleeding subscore of ≥ 1 from baseline or an absolute rectal bleeding subscore of 0 or 1. The mMCS is a scoring system for assessment of Ulcerative Colitis (UC) activity and is composed of subscores from endoscopy (range: 0 to 3, where 0 = normal or inactive disease and 3 = severe disease (spontaneous bleeding, ulceration)), rectal bleeding (range: 0 to 3, where 0 = no blood seen and 3 = blood alone passes), and stool frequency (range: 0 to 3, where 0 = normal number of stools and 3 = at least 5 or more stools more than normal). Total score for mMCS ranges from 0 to 9 (sum of all subscores), with higher scores indicating higher disease activity.
8 secondary outcomes
Incidence of Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), or Deaths.
Time frame: First dose date up to 116 weeks plus 28 days
Incidence of Treatment-emergent Lab Abnormalities
Time frame: First dose date up to 116 weeks plus 28 days
Proportion of Participants Achieving Clinical Remission at Week 12
Time frame: Week 12
Proportion of Participants Achieving Clinical Remission at Week 52
Time frame: Week 52
Proportion of Participants Achieving Histologic-endoscopic Mucosal Improvement at Week 12
Time frame: Week 12
Proportion of Participants Achieving Mucosal Healing at Week 12
Time frame: Week 12
Proportion of Participants Achieving Endoscopic Improvement at Week 12
Time frame: Week 12
To Assess the Efficacy of Emvistegrast in Achieving Partial Modified Mayo Clinic Score (mMCS) remission at Week 52
Time frame: Week 52
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 9 Apr 2026.
- Gilead Clinical Trials WebsiteLink provided by the sponsor.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Gilead Study Director study director
Gilead Sciences
181 sites in 22 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing emvistegrast in people with Ulcerative Colitis, run by Gilead Sciences at 181 sites in 22 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 9 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 181 sites in United States, Poland, Italy, South Korea, Romania and 17 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Proportion of Participants Achieving Clinical Response at Week 12 (time frame: Week 12). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Apr 2026.