Clinical Trial Results:
A Randomized, Double-Blind, Controlled, Multi-Center Study to Evaluate the Efficacy and Safety of Dose De-Escalation of Orally Administered Filgotinib in Subjects With Ulcerative Colitis in Clinical Remission
Summary
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EudraCT number |
2022-000719-30 |
Trial protocol |
PL CZ FR ES BE IT |
Global end of trial date |
09 Oct 2023
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Results information
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Results version number |
v1(current) |
This version publication date |
22 Sep 2024
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First version publication date |
22 Sep 2024
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Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
GLPG0634-CL-341
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT05479058 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Galapagos NV
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Sponsor organisation address |
Generaal De Wittelaan L11 A3, Mechelen, Belgium, 2800
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Public contact |
Galapagos Medical Information, Galapagos NV, medicalinfo@glpg.com
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Scientific contact |
Galapagos Medical Information, Galapagos NV, medicalinfo@glpg.com
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
28 Jun 2024
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Is this the analysis of the primary completion data? |
No
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Global end of trial reached? |
Yes
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Global end of trial date |
09 Oct 2023
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Was the trial ended prematurely? |
Yes
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General information about the trial
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Main objective of the trial |
To evaluate the efficacy of filgotinib in participants in stable clinical remission on 200 milligrams (mg) filgotinib once daily for whom the dose was decreased to 100 mg once daily compared to participants remaining on 200 mg once daily.
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Protection of trial subjects |
This clinical study was conducted in accordance with the ethical principles that have their origin in the “Declaration of Helsinki” and its amendments in force at the time of the clinical study. It was also carried out in conformity with the protocol, the International Council for Harmonisation for Good Clinical Practice (ICH-GCP) Guideline E6 (R2), and local ethical and legal requirements.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
26 Jul 2022
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
No
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
Poland: 7
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Country: Number of subjects enrolled |
Spain: 1
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Country: Number of subjects enrolled |
Belgium: 4
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Country: Number of subjects enrolled |
France: 2
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Country: Number of subjects enrolled |
Germany: 3
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Country: Number of subjects enrolled |
Korea, Republic of: 1
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Country: Number of subjects enrolled |
United States: 3
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Country: Number of subjects enrolled |
United Kingdom: 1
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Worldwide total number of subjects |
22
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EEA total number of subjects |
17
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
0
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Adults (18-64 years) |
17
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From 65 to 84 years |
5
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85 years and over |
0
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Recruitment
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Recruitment details |
Participants who were in clinical remission with filgotinib 200 mg once daily for at least 2 consecutive quarterly visits in the ongoing long-term extension (LTE) SELECTION-LTE study (GS-US-418-3899; NCT02914535) and who met the eligibility criteria, were rolled over and randomized to this study. | ||||||||||||||||||
Pre-assignment
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Screening details |
The trial was originally designed with the primary endpoint to be assessed at Week 48 after which participants would have received unblinded treatment. Due to early termination, none of the participants completed 48 weeks. All participants participated in blinded treatment period only and the study was unblinded globally after study completion. | ||||||||||||||||||
Period 1
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Period 1 title |
Overall (overall period)
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Is this the baseline period? |
Yes | ||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Double blind | ||||||||||||||||||
Roles blinded |
Subject, Investigator, Carer, Assessor | ||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Filgotinib 200 mg | ||||||||||||||||||
Arm description |
Participants received filgotinib 200 mg and placebo to match filgotinib 100 mg once daily orally. | ||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||
Investigational medicinal product name |
Filgotinib
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Investigational medicinal product code |
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Other name |
GS-6034, GLPG0634
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Pharmaceutical forms |
Tablet
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Routes of administration |
Oral use
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Dosage and administration details |
Administered orally once daily
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Investigational medicinal product name |
Placebo
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Tablet
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Routes of administration |
Oral use
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Dosage and administration details |
Administered orally once daily
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Arm title
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Filgotinib 100 mg | ||||||||||||||||||
Arm description |
Participants received filgotinib 100 mg and placebo to match filgotinib 200 mg once daily orally. | ||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||
Investigational medicinal product name |
Filgotinib
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Tablet
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Routes of administration |
Oral use
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Dosage and administration details |
Administered orally once daily
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Investigational medicinal product name |
Placebo
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Tablet
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Routes of administration |
Oral use
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Dosage and administration details |
Administered orally once daily
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Baseline characteristics reporting groups
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Reporting group title |
Filgotinib 200 mg
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Reporting group description |
Participants received filgotinib 200 mg and placebo to match filgotinib 100 mg once daily orally. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Filgotinib 100 mg
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Reporting group description |
Participants received filgotinib 100 mg and placebo to match filgotinib 200 mg once daily orally. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Filgotinib 200 mg
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Reporting group description |
Participants received filgotinib 200 mg and placebo to match filgotinib 100 mg once daily orally. | ||
Reporting group title |
Filgotinib 100 mg
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Reporting group description |
Participants received filgotinib 100 mg and placebo to match filgotinib 200 mg once daily orally. |
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End point title |
Percentage of Participants in Corticosteroid-free Clinical Remission Based on Modified Mayo Clinical Score (mMCS) [1] | ||||||||||||
End point description |
The mMCS is a tool designed to measure disease activity for ulcerative colitis. The mMCS was calculated as the sum of the 3 subscores: stool frequency, rectal bleeding, and endoscopy. Each subscore was graded from 0 to 3 with higher scores indicating more severe disease activity. The total mMCS score ranged from 0 to 9 with higher scores indicating more severe disease activity.
The mMCS remission was defined as a total score of score ≤2, with endoscopic subscore of ≤1, stool frequency subscore of ≤1, and a rectal bleeding subscore of 0.
Corticosteroid-free mMCS remission was defined as being free of corticosteroids for at least 12 weeks.
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End point type |
Primary
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End point timeframe |
Week 48
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Notes [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point. Justification: No participant reached the Week 48 time point, hence the data was not collected and analyzed. |
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Notes [2] - Due to early termination, Week 48 time point was not reached. Data was not collected and analyzed. [3] - Due to early termination, Week 48 time point was not reached. Data was not collected and analyzed. |
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No statistical analyses for this end point |
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End point title |
Time to Patient-Reported Outcome Based on 2 Items (PRO2) Flare | ||||||||||||
End point description |
PRO2 flare was defined as a PRO2 score worsening of at least 2 points and an absolute PRO2 score of at least 3, with stool frequency subscore ≥2, and rectal bleeding subscore ≥1.
PRO2 included items of stool frequency and rectal bleeding. The range of each item score was 0 to 3 with higher scores indicating more severe disease.
Participants in the Full Analysis Set (FAS) (all randomized participants who were administered study drug at least once) were analyzed.
'99999' signifies that due to insufficient number of participants with PRO2 flare, the median and 95% CI data could not be calculated.
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End point type |
Secondary
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End point timeframe |
Baseline up to Week 48
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No statistical analyses for this end point |
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End point title |
Time to ES-Confirmed UC Flare | ||||||||||||
End point description |
An ES-confirmed UC flare was defined as an increase in rectal bleeding subscore by at least 1 point and an increase in stool frequency subscore by at least 2 points and an increase in endoscopic subscore by at least 1 point. Each subscore graded from 0 to 3 with higher scores indicating more severe disease.
Participants in the FAS were analyzed.
'99999' signifies that due to insufficient number of participants with ES-confirmed UC flare, the median and 95% CI data could not be calculated.
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End point type |
Secondary
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End point timeframe |
Baseline up to Week 48
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No statistical analyses for this end point |
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End point title |
Change From Baseline in C-Reactive Protein (CRP) | |||||||||||||||||||||||||||
End point description |
CRP is an acute-phase protein which provides an objective criterion of inflammatory activity.
Participants in the FAS with available data were analyzed.
'99999' signifies that data at Week 48 was not collected and analyzed because the study was terminated prior to any participant reaching the Week 48 time point.
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End point type |
Secondary
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End point timeframe |
Baseline, Week 4, Week 12, Week 24, Week 36, and Week 48
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No statistical analyses for this end point |
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End point title |
Change From Baseline in Fecal Calprotectin (FCP) | |||||||||||||||||||||||||||
End point description |
Fecal calprotectin, a very stable biomarker, was a 36 kilodalton calcium and zinc binding protein of S-100 protein family which was neutrophil derived. It represents 60% of cytosolic proteins in neutrophils and was a measurement of neutrophil migration to the gastrointestinal tract.
Participants in the FAS with available data were analyzed.
'99999' signifies that data at Week 48 was not collected and analyzed because the study was terminated prior to any participant reaching the Week 48 time point.
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End point type |
Secondary
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End point timeframe |
Baseline, Week 4, Week 12, Week 24, Week 36, and Week 48
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No statistical analyses for this end point |
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End point title |
Change From Baseline in Inflammatory Bowel Disease Questionnaire (IBDQ) Score | ||||||||||||
End point description |
The IBDQ is disease-specific questionnaire used for an assessment of Health Related Quality of Life (HRQoL) in participants with the Inflammatory Bowel Disease (IBD). It comprised of 32 questions divided into four health subscales: bowel symptoms (10 questions); systemic symptoms, including sleep disorders and fatigue (5 questions); emotional function such as depression, aggression, and irritation (12 questions); and social function, meaning the ability to participate in social activities and to work (5 questions). The IBDQ total score was calculated as the sum of the responses (each ranging from 1 [severe problem] to 7 [normal health]) to all 32 questions. Total IBDQ score ranged from 32 to 224 with a higher score indicating a better HRQoL.
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End point type |
Secondary
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End point timeframe |
Baseline, Week 48
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Notes [4] - Due to early termination, Week 48 time point was not reached. Data was not collected and analyzed. [5] - Due to early termination, Week 48 time point was not reached. Data was not collected and analyzed. |
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No statistical analyses for this end point |
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End point title |
Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Treatment-Emergent Serious Adverse Events (SAEs), and TEAEs Leading to Treatment Discontinuation | ||||||||||||||||||
End point description |
An adverse event (AE) was any untoward medical occurrence, new or worsening of any preexisting condition, in a clinical study participant administered a medicinal product and which did not necessarily had to have a causal relationship with this treatment.
A TEAE was defined as an AE which had a start date equal to or after the date of the first administration of study drug in this study and no later than 30 days after last administration of study drug; And was either a newly reported event, or a worsening of an existing event.
Serious TEAE was defined as a TEAE that Resulted in death and was life-threatening; Required in-patient hospitalization or prolongation of existing hospitalization; Resulted in persistent or significant disability/incapacity; Was a congenital anomaly / birth defect; Was medically significant.
Participants in the Safety Analysis Set (all randomized participants who were administered study drug at least once) were analyzed.
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End point type |
Secondary
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End point timeframe |
Baseline up to Week 48
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No statistical analyses for this end point |
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Adverse events information
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Timeframe for reporting adverse events |
Baseline up to Week 48
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Adverse event reporting additional description |
The Safety Analysis Set included all randomized participants who were administered study drug at least once.
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Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
26.0
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Reporting groups
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Reporting group title |
Filgotinib 100 mg
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Reporting group description |
Participants received filgotinib 100 mg and placebo to match filgotinib 200 mg once daily orally. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Filgotinib 200 mg
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Reporting group description |
Participants received filgotinib 200 mg and placebo to match filgotinib 100 mg once daily orally. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 0% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Notes [1] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: This is a sex-specific AE. Only female participants were at risk. |
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
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17 Mar 2023 |
− Clarifications were added regarding UC flare, biopsies, corticosteroids, food intake, End of treatment visit, unblinding of participants at the study primary analysis endpoint, and hepatitis B virus surveillance.
− The eligibility criteria and screening assessments were updated, rescreening allowed, and the screening period was extended.
− The definitions of women of childbearing potential and postmenopausal female were changed. |
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Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
Study was terminated as the planned number of participants needed to ensure adequate precision in the estimations and to draw meaningful conclusions was unlikely to be met, questioning the scientific value and ethical grounds for study continuation. |