Clinical Trial Results:
A dual-center prospective phase I/II trial to establish safety, tolerability and to obtain first data on efficacy of losartan in children with recessive dystrophic epidermolysis bullosa (RDEB)
Summary
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EudraCT number |
2015-003670-32 |
Trial protocol |
DE AT |
Global end of trial date |
12 Feb 2021
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Results information
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Results version number |
v1(current) |
This version publication date |
03 Sep 2022
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First version publication date |
03 Sep 2022
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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 |
REFLECT
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Additional study identifiers
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ISRCTN number |
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US NCT number |
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WHO universal trial number (UTN) |
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Other trial identifiers |
DRKS: DRKS00009269 | ||
Sponsors
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Sponsor organisation name |
Medical Center - University of Freiburg
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Sponsor organisation address |
Breisacher Str. 153, Freiburg, Germany, 79110
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Public contact |
Prof. Dr. Dimitra Kiritsi, Medical Center - University of Freiburg, ++49 761270-67100, dimitra.kiritsi@uniklinik-freiburg.de
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Scientific contact |
Prof. Dr. Dimitra Kiritsi, Medical Center - University of Freiburg, ++49 761270-67100, dimitra.kiritsi@uniklinik-freiburg.de
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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 |
01 Oct 2021
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Is this the analysis of the primary completion data? |
Yes
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Primary completion date |
12 Feb 2021
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Global end of trial reached? |
Yes
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Global end of trial date |
12 Feb 2021
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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 |
Establish tolerability and saftey of losartan in children with moderate to serve RDEB
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Protection of trial subjects |
Risk-based monitoring was done according to ICH-GCP E6 and SOPs to verify that patients’ rights and wellbeing are protected, reported trial data are accurate, complete and verifiable from source documents and that the trial is conducted in compliance with the currently approved protocol/amendment, with ICH-GCP and with the applicable regulatory requirements to ensure safety and integrity of clinical trial data.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
27 Jul 2017
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
Yes
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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: 29
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Worldwide total number of subjects |
29
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EEA total number of subjects |
29
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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) |
24
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Adolescents (12-17 years) |
5
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Adults (18-64 years) |
0
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From 65 to 84 years |
0
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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 |
- | ||||||
Pre-assignment period milestones
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Number of subjects started |
29 | ||||||
Number of subjects completed |
29 | ||||||
Period 1
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Period 1 title |
Overall (overall period)
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Is this the baseline period? |
Yes | ||||||
Allocation method |
Not applicable
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Blinding used |
Not blinded | ||||||
Blinding implementation details |
Not applicable: prospective, open, single-arm phase I/II clinical trial
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Arms
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Arm title
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Losartan | ||||||
Arm description |
Study medication: Losartan potassium, 2.5 mg/ml, extemporaneous oral liquid suspension. | ||||||
Arm type |
Experimental | ||||||
Investigational medicinal product name |
Losartan HEXAL
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Investigational medicinal product code |
Losartan potassium
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Other name |
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Pharmaceutical forms |
Film-coated tablet, Oral liquid, Oral suspension
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Routes of administration |
Oral use
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Dosage and administration details |
Dosage form: Film-coated tablets
Strength: 50 mg
Maximum daily dose: 1.4 mg/kg
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Baseline characteristics reporting groups
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Reporting group title |
Overall
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Reporting group description |
- | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Subject analysis sets
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Subject analysis set title |
SAF
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Subject analysis set type |
Safety analysis | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject analysis set description |
All analyses (safety and efficacy) were performed in the safety population (SAF) which included all patients who fulfilled the inclusion and exclusion criteria, and for whom treatment was started, i.e. 29 patients.
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End points reporting groups
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Reporting group title |
Losartan
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Reporting group description |
Study medication: Losartan potassium, 2.5 mg/ml, extemporaneous oral liquid suspension. | ||
Subject analysis set title |
SAF
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Subject analysis set type |
Safety analysis | ||
Subject analysis set description |
All analyses (safety and efficacy) were performed in the safety population (SAF) which included all patients who fulfilled the inclusion and exclusion criteria, and for whom treatment was started, i.e. 29 patients.
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End point title |
Occurrence of a serious safety concern [1] | ||||||
End point description |
The primary endpoint was defined as the occurrence of a serious safety concern, specified as one of the following side effects of losartan:
• clinically relevant severe hypotension
• immediate hypersensitivity reactions to the drug
• clinical relevant severe hypo- und hyperkalaemia
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End point type |
Primary
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End point timeframe |
During study
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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: Single arm trial. |
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No statistical analyses for this end point |
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End point title |
Birmingham Epidermolysis Bullosa Severity Score | ||||||||
End point description |
Birmingham Epidermolysis Bullosa Severity Score (BEBS) (0=best, 100=worst)
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End point type |
Secondary
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End point timeframe |
Difference between baseline and month 9
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No statistical analyses for this end point |
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End point title |
Epidermolysis Bullosa Disease Activity and Scarring Index (EBDASI) Total activity score | ||||||||
End point description |
Change in the total activity score (0=best, 276=worst) of the Epidermolysis Bullosa Disease Activity and Scarring Index
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End point type |
Secondary
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End point timeframe |
Difference between baseline and month 9
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No statistical analyses for this end point |
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End point title |
Epidermolysis Bullosa Disease Activity and Scarring Index (EBDASI) – Total damage score | ||||||||
End point description |
EBDASI total damage score (ranging from 0=best to 230=worst)
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End point type |
Secondary
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End point timeframe |
Difference between baseline and month 9
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No statistical analyses for this end point |
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End point title |
Epidermolysis Bullosa Disease Activity and Scarring Index (EBDASI) – Overall total score | ||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Difference between baseline and month 9
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No statistical analyses for this end point |
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End point title |
Hand function assessment score of Colville and Terrill | ||||||
End point description |
Hand function assessment score of Colville and Terrill, ranging from 0=best to 3=worst. Improvement of at least 1 level.
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End point type |
Secondary
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End point timeframe |
Difference between baseline and month 9
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No statistical analyses for this end point |
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End point title |
Mayo Dysphagia Questionnaire-day 30 (MDQ-30) | ||||||||
End point description |
The Mayo Dysphagia Questionnaire-day 30 (MDQ-30) was used to assess oesophageal involvement. Dysphagia score: 0=best, 100=worst
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End point type |
Secondary
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End point timeframe |
Difference between baseline and month 9
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No statistical analyses for this end point |
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End point title |
Itch Assessment Scale | ||||||
End point description |
Itch assessment scale for the pediatric burn patients, ranging from 0=best to 4=worst. Improvement of at least one level.
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End point type |
Secondary
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End point timeframe |
Difference between baseline and month 9
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No statistical analyses for this end point |
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End point title |
Wong-Baker FACES Scale for Pain | ||||||
End point description |
Wong-Baker FACES Scale for Pain (ranging from 0=best to 10=worst). Improvement of at least 1 level.
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End point type |
Secondary
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End point timeframe |
Difference between baseline and month 9
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No statistical analyses for this end point |
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End point title |
Quality of Life in EB (QOLEB) | ||||||||
End point description |
The change in the total score (0=best, 51=worst) of the Quality of Life in EB (QOLEB) during the study.
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End point type |
Secondary
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End point timeframe |
Difference between baseline and month 9
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No statistical analyses for this end point |
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End point title |
Children’s Dermatology Life Quality Index (CDLQI) - Total scale | ||||||||
End point description |
Change in the total scale (0=best, 30=worst) of the Children’s Dermatology Life Quality Index (CDLQI) during the study
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End point type |
Secondary
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End point timeframe |
Difference between baseline and month 9
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No statistical analyses for this end point |
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End point title |
Morphometric Scoring Instrument of Pseudosyndactyly Progression | ||||||||
End point description |
Maximal distance of thumb and index finger – Mean of left and right
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End point type |
Secondary
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End point timeframe |
Difference between baseline and month 9
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No statistical analyses for this end point |
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End point title |
Adverse event | ||||||
End point description |
Number of patient with at least one adverse event
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End point type |
Secondary
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End point timeframe |
During the whole study period
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No statistical analyses for this end point |
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End point title |
Adverse event of severe intensity | ||||||
End point description |
Number of patients with at least one AE of severe intensity
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End point type |
Secondary
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End point timeframe |
During study
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No statistical analyses for this end point |
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End point title |
Adverse event possibly related to study medication | ||||||
End point description |
Number of patients with at least one AE possibly related to study medication
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End point type |
Secondary
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End point timeframe |
During study
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No statistical analyses for this end point |
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End point title |
Severe adverse event possibly related to study medication | ||||||
End point description |
Number of patients with at least one severe adverse event possibly related to study medication
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End point type |
Secondary
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End point timeframe |
During study
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No statistical analyses for this end point |
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End point title |
Serious adverse event | ||||||
End point description |
Number of patients with at least one serious adverse event
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End point type |
Secondary
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End point timeframe |
During study
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No statistical analyses for this end point |
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End point title |
Serious adverse event possibly related to study medication | ||||||
End point description |
Number of patients with at least one SAE possibly related to study medication
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End point type |
Secondary
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End point timeframe |
During study
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No statistical analyses for this end point |
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End point title |
Serious adverse event leading to death | ||||||
End point description |
Number of patients with at least one SAE leading to death
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End point type |
Secondary
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End point timeframe |
During study
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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 |
Complete study
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Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
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Reporting groups
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Reporting group title |
Losartan
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Reporting group description |
Losartan | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 0% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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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21 May 2019 |
Administrative changes, update of the responsibility list:
• change of coordinating investigator
• departure of one of the project manager from the CTU
Formal specification of the inclusion criterion 3:
OLD: Male or female patients from 2 to 16 years (age of >25 months); NEW: Male or female patients from 2 to 16 years (starting from the 25th month of life).
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18 Feb 2020 |
Administrative changes, update of the responsibility list:
• change of coordinating investigator
Synopsis and chapter 3.4 Trial timetable:
• Updates regarding timelines
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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. | |||
None reported |