Clinical Trial Results:
Clinical study to investigate safety, tolerability, efficacy, pharmacokinetics and pharmacodynamics of multiple doses of the human GATA-3-specific DNAzyme solution SB010 in patients with mild allergic asthma – A randomised, double-blind, parallel, multicentre, phase-IIa study –
Summary
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EudraCT number |
2012-003570-77 |
Trial protocol |
DE |
Global end of trial date |
27 Nov 2013
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Results information
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Results version number |
v2(current) |
This version publication date |
24 Mar 2022
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First version publication date |
05 Nov 2021
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Other versions |
v1 |
Version creation reason |
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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 |
SB010/04/2012
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT01743768 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Sterna biologicals GmbH & Co KG
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Sponsor organisation address |
Bismarckstraße 7, Marburg, Germany, 35037
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Public contact |
Clinical Trial Manager, Sterna biologicals GmbH & Co. KG , clinicaltrials@sterna-biologicals.com
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Scientific contact |
Clinical Trial Manager, Sterna biologicals GmbH & Co. KG , clinicaltrials@sterna-biologicals.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 Aug 2014
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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 |
27 Nov 2013
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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 |
Evaluate the influence of multiple doses of inhaled SB010 on the late phase response (4 – 7 hours) after allergen challenge (AC).
The rationale of the study was to investigate the efficacy, pharmacokinetics, and pharmacodynamics of multiple doses of inhaled SB010 in patients with documented mild allergic asthma. This was done by analysing the late asthmatic response (LAR), following allergen challenge (AC) after a 4-week treatment period. The study consisted of 2 parallel treatment groups and was randomised and placebo-controlled. For an individual patient, the total duration of study participation was estimated at most 149 days.
The investigational medicinal product (IMP) SB010 contains the DNAzyme hgd40 (new class of antisense oligonucleotide therapeutics), which targets the mRNA of the transcription factor GATA-3. GATA-3 is the key regulatory factor of T helper cells 2 (Th2)-driven immune responses. Development of asthma is often correlated with a malfunction of immune system.
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Protection of trial subjects |
This trial was conducted in accordance with the ethical principles that have their origin in the currently valid Declaration of Helsinki, and are consistent with ICH-GCP (January 1997) and applicable regulatory requirements.
All laboratory tests and procedures used during the study are well established and validated. Adverse events were monitored from the time of signing the informed consent to the end of the study (or study discontinuation).
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Background therapy |
- | ||
Evidence for comparator |
Abbreviations used in this entry AC=allergen challenge AUC(4-7) FEV1=Area under the FEV1 curve from 4 h to 7 h AUC(0-12)=The area under the plasma concentration-time curve from zero to 12 h Cmax=Concentration maximum, highest observed plasma concentration of the measured concentration-time profile FEV1=Forced expiratory volume in 1 second FVC=Forced vital capacity h=hour hgd40=Active principle of the IMP SB010, a human GATA-3-specific DNAzyme IMP=Investigational medicinal product LAR=Late asthmatic response OD=Once daily t½=Half-life; Time it takes for the concentration of a substance in the body to be reduced by one half tmax=Time of maximum concentration | ||
Actual start date of recruitment |
11 Dec 2012
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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: 43
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Worldwide total number of subjects |
43
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EEA total number of subjects |
43
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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) |
43
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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 |
Overall, 43 adult white male subjects (18 to 60 years) with documented mild asthma ( FEV1 value of FEV1 ≥ 70% of the predicted normal value) were eligible for enrolment into the trial and to randomisation. | |||||||||||||||
Pre-assignment
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Screening details |
Asthma patients were screened according to inclusion and exclusion criteria. Written informed consent was obtained prior to participation in the study. Only patients with a documented or known biphasic reaction to allergen challenge (AC) -- early-phase and late-phase response -- were enrolled; bronchoprovocation at screening was with methacholine. | |||||||||||||||
Period 1
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Period 1 title |
Overall treatment (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, Monitor, Data analyst, Carer, Assessor | |||||||||||||||
Blinding implementation details |
Double-blind design. To ensure double-blinding, the study medications (SB010 and placebo) were identical with respect of their outer appearance, odour, packaging, and labelling.
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Arms
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Are arms mutually exclusive |
Yes
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Arm title
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SB010 | |||||||||||||||
Arm description |
Patients received SB010. Each patient was treated for 28 days once daily (OD) with the test product (10 mg hgd40 in 2 mL solution concentration: 5 mg/mL). | |||||||||||||||
Arm type |
Experimental | |||||||||||||||
Investigational medicinal product name |
SB010
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Nebuliser solution
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Routes of administration |
Inhalation use
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Dosage and administration details |
10 mg hgd40 in 2 mL solution (concentration: 5.0 mg/mL), oral inhalation (nebuliser)
SB010 (10 mg hgd40 in 2 mL solution as oral inhalation solution (nebuliser) was administered in a dosing interval of 24 h for 28 consecutive days (Day 1 to Day 28) using a controlled inhalation system (AKITA2 APIXNEB®). Inhalations were to be performed in the morning at the same time of the day.
On Day 1 (Visit 6, initial IMP), Day 6 ± 1 (Visit 7), Day 13 ± 1 (Visit 8), Day 20 ± 1 (Visit 9), Day 26 ± 1 (Visit 10) and Day 28 (Visit 11, therapy end) trained study personnel supervised the filling of the AKITA2 APIXNEB® nebuliser and the inhalation of the IMP solution by the patient. On the other treatment days patients self-administered the IMP solution once daily via AKITA2 APIXNEB® inhalation device.
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Arm title
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Placebo | |||||||||||||||
Arm description |
Patients received Placebo. Each patient received for 28 days once daily (OD) placebo (2 mL phosphate-buffered saline solution). | |||||||||||||||
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 |
Nebuliser solution
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Routes of administration |
Inhalation use
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Dosage and administration details |
Placebo in 2 mL solution, oral inhalation (nebuliser)
Placebo treatment (2 mL placebo nebuliser solution (phosphate-buffered saline) was administered in a dosing interval of 24 h for 28 consecutive days (Day 1 to Day 28) using a controlled inhalation system (AKITA2 APIXNEB®). Inhalations were performed in the morning at the same time of the day.
On Day 1 (Visit 6, initial IMP), Day 6 ± 1 (Visit 7), Day 13 ± 1 (Visit 8), Day 20 ± 1 (Visit 9), Day 26 ± 1 (Visit 10) and Day 28 (Visit 11, therapy end) trained study personnel supervised the filling of the AKITA2 APIXNEB® nebuliser and the inhalation of the IMP solution by the patient. On the other treatment days patients self-administered the IMP solution once daily via AKITA2 APIXNEB® inhalation device.
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Baseline characteristics reporting groups
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Reporting group title |
SB010
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Reporting group description |
Patients received SB010. Each patient was treated for 28 days once daily (OD) with the test product (10 mg hgd40 in 2 mL solution concentration: 5 mg/mL). | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Placebo
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Reporting group description |
Patients received Placebo. Each patient received for 28 days once daily (OD) placebo (2 mL phosphate-buffered saline solution). | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
SB010
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Reporting group description |
Patients received SB010. Each patient was treated for 28 days once daily (OD) with the test product (10 mg hgd40 in 2 mL solution concentration: 5 mg/mL). | ||
Reporting group title |
Placebo
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Reporting group description |
Patients received Placebo. Each patient received for 28 days once daily (OD) placebo (2 mL phosphate-buffered saline solution). |
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End point title |
1_AUC for FEV1 in late phase response (4-7 h) after allergen challenge | ||||||||||||||||||
End point description |
Area under the curve (AUC) for FEV1, expressed as a percentage of the baseline FEV1 during late asthmatic response (4 to 7 h after allergen challenge), after administration of multiple doses of inhaled SB010.
Bronchial AC was performed with allergen extracts according to the allergens used for the skin prick test. For an individual patient, the allergen chosen was based on a positive skin prick test. A safe starting concentration for the inhaled aeroallergen was calculated using results of the skin prick dilution test performed at Visit 2 and the methacholine challenge performed at Visit 1.
Day -1 (enrolment i.e. before treatment )
Day 28 (treatment end)
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End point type |
Primary
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End point timeframe |
After an allergen challenge (AC) at visit 4 (Day -1, enrolment) and at visit 11 (Day 28, end of the study).
Measurement time points for LAR were 4, 5, 6, and 7 hours after AC.
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Notes [1] - Intention to treat population [2] - Intention to treat population |
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Statistical analysis title |
Analysis of covariance | ||||||||||||||||||
Statistical analysis description |
Comparison of AUC4-7FEV1, at visit 11 between the treatment groups by analysis of covariance, with factors treatment and covariate AUC4-7FEV1 , at visit 4, respectively 2.
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Comparison groups |
SB010 v Placebo
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Number of subjects included in analysis |
39
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||||||||
P-value |
= 0.021 | ||||||||||||||||||
Method |
ANCOVA | ||||||||||||||||||
Parameter type |
Mean difference of LS means | ||||||||||||||||||
Confidence interval |
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level |
95% |
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End point title |
2_AUC for FEV1 in late phase response (4-7 h) after allergen challenge (Absolute change) | ||||||||||||
End point description |
AUC for FEV1 in late phase response (4-7 h) after allergen challenge (Absolute change)
For details please refer to endpoint #1.
The results are expressed as absolute change and are based on the results shown in endpoint #1. The results for absolute change reflect the effect of treatment on the lung function. Negative values imply improvement of lung function (i.e. less pronounced decline of lung function during the time interval from 4 to 7 hours after AC, considering the time of testing before and after treatment with SB010).
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End point type |
Secondary
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End point timeframe |
After an allergen challenge (AC) at visit 4 (Day -1, enrolment) and at visit 11 (Day 28, end of the study).
Measurement time points for LAR were 4, 5, 6, and 7 hours after AC.
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Notes [3] - Intention to treat population [4] - Intention to treat population |
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No statistical analyses for this end point |
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End point title |
3_AUC for FEV1 in late phase response (4-7 h) after allergen challenge (Relative change) | ||||||||||||
End point description |
AUC for FEV1 in late phase response (4-7 h) after allergen challenge (Relative change)
The results are expressed as percent change and are based on the results shown in endpoint #1.
The results for relative change reflect the effect of treatment on the lung function.
As shown in the Table below, a negative value implies an improvement of lung function (i.e. less pronounced decline of lung function during the time interval from 4 to 7 hours after AC, considering the time of testing before and after treatment with SB010).
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End point type |
Secondary
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End point timeframe |
After an allergen challenge (AC) at visit 4 (Day -1, enrolment) and at visit 11 (Day 28, end of the study).
Measurement time points for LAR were 4, 5, 6, and 7 hours after allergen challenge (AC).
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Notes [5] - Intention to treat population A negative value implies an improvement in lung function. [6] - Intention to treat population A positive value implies a decline in lung function. |
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No statistical analyses for this end point |
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End point title |
4_ Pharmacokinetic variables: maximum plasma concentration (Cmax) [7] | ||||||||||||
End point description |
Pharmacokinetic variables: maximum plasma concentration (Cmax)
hgd40 plasma concentrations after first inhalation (Day 1) and last day of treatment i.e. after 28 days of treatment (Day 29).
hgd40 is the active principle of the IMP SB010.
hgd40 plasma concentrations was determined using a validated method (hybridisation ELISA) to capture the hgd40).
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End point type |
Secondary
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End point timeframe |
First day of treatment (Day 1) and Day 28, of treatment: before treatment 0 min, and after treatment at 5, 10, 15, 20, 30, 45 min; 1, 1.5, 2, 4, 6, 8, 12, 24 h.
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Notes [7] - 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: Result values for the placebo arm were not measureable. |
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Notes [8] - Safety analysis set N=21 (Day 1) N=22 (Day 29) |
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No statistical analyses for this end point |
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End point title |
5_Pharmacokinetic variables: time to reach maximum plasma concentration (tmax) [9] | ||||||||||||
End point description |
Time to reach maximum plasma concentration (tmax)
For further details please see endpoint #4.
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End point type |
Secondary
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End point timeframe |
First day of treatment (Day 1) and Day 28 of treatment: before treatment 0 min, and after treatment at 5, 10, 15, 20, 30, 45 min; 1, 1.5, 2, 4, 6, 8, 12, 24 h.
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Notes [9] - 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: Result values for the placebo arm were not measureable. |
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Notes [10] - Safety analysis set N=21 (Day 1) N=22 (Day 29) |
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No statistical analyses for this end point |
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End point title |
6_Pharmacokinetic variable: half-life (t½) [11] | ||||||||||||
End point description |
Half-life (t½).
For further details please see endpoint #4
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End point type |
Secondary
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End point timeframe |
First day of treatment (Day 1) and Day 28 of treatment: before treatment 0 min, and after treatment at 5, 10, 15, 20, 30, 45 min; 1, 1.5, 2, 4, 6, 8, 12, 24 h.
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Notes [11] - 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: Result values for the placebo arm were not measureable. |
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Notes [12] - Safety analysis set N=16 (Day 1) N=15 (Day 29) |
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No statistical analyses for this end point |
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End point title |
7_Pharmacokinetic variable: area under the plasma concentration-time curve from zero to 12 h [AUC(0-12)] [13] | ||||||||||||
End point description |
Pharmacokinetic variable: area under the plasma concentration-time curve from zero to 12 h [AUC(0-12)].
For further details please see endpoint #4.
AUC(0-12)=The area under the plasma concentration-time curve from zero to 12 h
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End point type |
Secondary
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End point timeframe |
First day of treatment (Day 1) and Day 28 of treatment: before treatment 0 min, and after treatment at 5, 10, 15, 20, 30, 45 min; 1, 1.5, 2, 4, 6, 8, 12, 24 h.
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Notes [13] - 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: Result values for the placebo arm were not measureable. |
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Notes [14] - Safety analysis set N=21 (Day 1) N=22 (Day 29) |
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No statistical analyses for this end point |
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End point title |
8_Spirometry variable -- FEV1 predicted -- from Visit 4 to Visit 11 (Absolute change) | ||||||||||||
End point description |
Spirometry -- FEV1 predicted, from Visit 4 (enrolment) to Visit 11 (last treatment) -- Absolute change
AC=Allergen challenge
FEV1=Forced expiratory volume in 1 second
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End point type |
Secondary
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End point timeframe |
Before allergen challenge (AC) at visit 4 (Day -1, enrolment) and at visit 11 (Day 28, end of treatment).
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Notes [15] - Intention to treat population [16] - Intention to treat population |
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No statistical analyses for this end point |
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End point title |
9_Spirometry variable -- FEV1 predicted -- from Visit 4 to Visit 11 (Percent change) | ||||||||||||
End point description |
Spirometry -- FEV1 predicted, from Visit 4 to Visit 11 (Percent change).
AC=Allergen challenge
FEV1=Forced expiratory volume in 1 second
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End point type |
Secondary
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End point timeframe |
Before allergen challenge (AC) at visit 4 (Day -1, enrolment) and at visit 11 (Day 28, end of treatment).
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Notes [17] - Intention to treat population [18] - Intention to treat population |
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No statistical analyses for this end point |
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End point title |
10_Spirometry variable -- FVC predicted -- from Visit 4 to Visit 11 (Absolute change) | ||||||||||||
End point description |
Spirometry -- FVC predicted, from Visit 4 to Visit 11 (Absolute change).
AC=Allergen challenge
FVC=Forced vital capacity
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End point type |
Secondary
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End point timeframe |
Before allergen challenge (AC) at visit 4 (Day -1, enrolment) and at visit 11 (Day 28, end of treatment).
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Notes [19] - Intention to treat population [20] - Intention to treat population |
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No statistical analyses for this end point |
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End point title |
11_Spirometry variable -- FVC predicted -- from Visit 4 to Visit 11 (Percent change) | ||||||||||||
End point description |
Spirometry -- FVC predicted, from Visit 4 to Visit 11 (Percent change).
AC=Allergen challenge
FVC=Forced vital capacity
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End point type |
Secondary
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End point timeframe |
Before allergen challenge (AC) at visit 4 (Day -1, enrolment) and at visit 11 (Day 28, end of treatment).
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Notes [21] - Intention to treat population [22] - Intention to treat population |
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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 |
Adverse events (AE) were monitored from the time of signing the informed consent to the end of the study (or study discontinuation). The study duration was from Day -56 (Screening visit) to Day 88 ± 4 (Follow-up visit).
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Adverse event reporting additional description |
AEs are presented as treatment-emergent adverse events (TEAE), as safety set.
No serious TEAE was reported during this study.
One non-TEAE serious AE (SAE) occurred about 2 months after the end of treatment period. The SAE was 'detachment of the retina right', with onset 8 weeks after the last dose of study medication; not related to treatment
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Assessment type |
Systematic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
15.1
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Reporting groups
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Reporting group title |
Placebo
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Reporting group description |
- | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
SB010
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Reporting group description |
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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? 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 | |||
Online references |
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http://www.ncbi.nlm.nih.gov/pubmed/25981191 |