Clinical Trial Results:
A Phase II, Randomized, Double-blind, Placebo-Controlled Multicenter Study to Assess the Efficacy and Safety of MSTT1041A in Patients with Moderate to Severe Atopic Dermatitis
Summary
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EudraCT number |
2018-003429-27 |
Trial protocol |
DE |
Global end of trial date |
11 Mar 2020
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Results information
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Results version number |
v1(current) |
This version publication date |
14 May 2021
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First version publication date |
14 May 2021
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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 |
GS40965
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT03747575 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Hoffmann-La Roche
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Sponsor organisation address |
Grenzacherstrasse 124, Basel, Switzerland, 4070
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Public contact |
F. Hoffmann-LaRoche AG, Hoffmann-La Roche, +41 616878333, global.trial_information@roche.com
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Scientific contact |
F. Hoffmann-LaRoche AG, Hoffmann-La Roche, +41 616878333, global.trial_information@roche.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 |
11 Mar 2020
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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 |
11 Mar 2020
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
The main objective was to assess the efficacy and safety of MSTT1041A (astegolimab) in participants with moderate to severe atopic dermatitis (AD).
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Protection of trial subjects |
All participants are required to sign an Informed Consent Form (ICF).
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
06 Feb 2019
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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 |
Germany: 5
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Country: Number of subjects enrolled |
Poland: 17
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Country: Number of subjects enrolled |
United States: 43
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Worldwide total number of subjects |
65
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EEA total number of subjects |
22
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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) |
61
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From 65 to 84 years |
4
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85 years and over |
0
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Recruitment
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Recruitment details |
- | |||||||||||||||||||||
Pre-assignment
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Screening details |
Adults with moderate or severe atopic dermatitis | |||||||||||||||||||||
Period 1
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Period 1 title |
Overall Study (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 |
Investigator, Subject | |||||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Placebo | |||||||||||||||||||||
Arm description |
Participants received a loading dose of SC placebo matched to MSTT1041A followed by SC placebo Q4W. | |||||||||||||||||||||
Arm type |
Placebo | |||||||||||||||||||||
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 |
Solution for injection
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Routes of administration |
Subcutaneous use
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Dosage and administration details |
Administered as a loading dose Week 1, then as four subcutaneous (SC) injections every 4 weeks (Q4W)
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Arm title
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Treatment | |||||||||||||||||||||
Arm description |
Participants received a loading dose of 245 mg of subcutaneous (SC) MSTT1041A, followed by 490 mg of SC MSTT1041A every 4 weeks (Q4W). | |||||||||||||||||||||
Arm type |
Experimental | |||||||||||||||||||||
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 |
Solution for injection
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Routes of administration |
Subcutaneous use
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Dosage and administration details |
Administered as a 245 mg loading dose Week 1, then as four 490 mg subcutaneous (SC) injections every 4 weeks (Q4W)
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Baseline characteristics reporting groups
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Reporting group title |
Placebo
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Reporting group description |
Participants received a loading dose of SC placebo matched to MSTT1041A followed by SC placebo Q4W. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Treatment
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Reporting group description |
Participants received a loading dose of 245 mg of subcutaneous (SC) MSTT1041A, followed by 490 mg of SC MSTT1041A every 4 weeks (Q4W). | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Placebo
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Reporting group description |
Participants received a loading dose of SC placebo matched to MSTT1041A followed by SC placebo Q4W. | ||
Reporting group title |
Treatment
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Reporting group description |
Participants received a loading dose of 245 mg of subcutaneous (SC) MSTT1041A, followed by 490 mg of SC MSTT1041A every 4 weeks (Q4W). |
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End point title |
Percent Change of Total Eczema Area and Severity Index (EASI) Score [1] | ||||||||||||
End point description |
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End point type |
Primary
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End point timeframe |
Baseline, Week 16
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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 formal statistical analyses were performed |
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No statistical analyses for this end point |
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End point title |
Proportion of Participants who Achieve Investigator's Global Assessment (IGA) Response of 0 or 1 | ||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Baseline, Week 16
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No statistical analyses for this end point |
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End point title |
Proportion of Participants who Achieve >/=75% Reduction from Baseline in Eczema Area and Severity Index (EASI-75) Score | ||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Baseline, Week 16
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No statistical analyses for this end point |
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End point title |
Percent Change in Pruritus as Assessed by a Numeric Rating Scale (NRS) | ||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Baseline, Week 16
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No statistical analyses for this end point |
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End point title |
Percent Change in Body Surface Area (BSA) with Atopic Dermatitis (AD) Involvement | ||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Baseline, Week 16
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No statistical analyses for this end point |
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End point title |
Percent Change in Disease Severity as Assessed by SCORing Atopic Dermatitis (SCORAD) | ||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Baseline, Week 16
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No statistical analyses for this end point |
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End point title |
Percentage of Participants with Adverse Events (AE) | ||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Up to Week 24
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No statistical analyses for this end point |
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End point title |
Serum Concentrations of MSTT1041A [2] | ||||||||||||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
At pre-defined intervals from baseline up to Week 24
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Notes [2] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: Results are specific to the arm that received MSTT1041A |
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Notes [3] - Summary statistics not reportable for time points where > one-third of samples were not reportable. |
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No statistical analyses for this end point |
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End point title |
Incidence of Treatment-Emergent Anti-Drug Antibodies (ADAs) | |||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Up to Week 24
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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 |
Up to Week 16
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Adverse event reporting additional description |
The safety population contained all randomized participants who received at least one dose of study drug. Participants are grouped according to actual treatment received.
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Assessment type |
Non-systematic | |||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | |||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
23.0
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Reporting groups
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Reporting group title |
Placebo
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Reporting group description |
Participants received a loading dose of SC placebo matched to MSTT1041A followed by SC placebo Q4W. | |||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Treatment
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Reporting group description |
Participants received a loading dose of 245 mg of subcutaneous (SC) MSTT1041A, followed by 490 mg of SC MSTT1041A every 4 weeks (Q4W). | |||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 5% | ||||||||||||||||||||||||||||||||||||||||||||||
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? No | |||
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. | |||
None reported |