Clinical Trial Results:
A randomised, assessor-blinded, multi-centre trial comparing the efficacy, safety and tolerability of the PICOPREP tailored dosing schedule to the PICOPREP day-before dosing schedule for colon cleansing in preparation for colonoscopy.
Summary
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EudraCT number |
2014-001062-10 |
Trial protocol |
NL DE |
Global end of trial date |
08 Jun 2015
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Results information
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Results version number |
v1(current) |
This version publication date |
02 Jun 2016
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First version publication date |
02 Jun 2016
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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 |
000121
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT02239692 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Ferring Pharmaceuticals A/S
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Sponsor organisation address |
Kay Fiskers Plads 11, Copenhagen S, Denmark, 2300
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Public contact |
Clinical Development Support, Ferring Pharmaceuticals, DK0-Disclosure@ferring.com
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Scientific contact |
Clinical Development Support, Ferring Pharmaceuticals, DK0-Disclosure@ferring.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 |
18 Jun 2015
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Is this the analysis of the primary completion data? |
Yes
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Primary completion date |
01 Jun 2015
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Global end of trial reached? |
Yes
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Global end of trial date |
08 Jun 2015
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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 |
This was a phase 3, randomised, assessor-blinded, multi-centre trial comparing the efficacy, safety and tolerability of a PICOPREP tailored dosing schedule to the PICOPREP day-before dosing schedule for colon cleansing in preparation for colonoscopy.
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Protection of trial subjects |
Before obtaining the consent from patients, the Investigator appropriately explained the aims, methods, anticipated benefits, potential hazards, and any other aspects of the trial which are relevant to the patient’s decision to participate, in a language understood by the patient. The Investigator explained to the patients about their right of freedom to refuse to enter the trial or to withdraw from it at any time, without any consequences on their further care and without the need to justify their decision. The trial was conducted in accordance with the Declaration of Helsinki and in compliance with the International Conference on Harmonization-Good Clinical Practice guidelines.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
25 Nov 2014
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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 |
France: 15
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Country: Number of subjects enrolled |
Germany: 152
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Country: Number of subjects enrolled |
Netherlands: 37
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Worldwide total number of subjects |
204
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EEA total number of subjects |
204
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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) |
134
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From 65 to 84 years |
70
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85 years and over |
0
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Recruitment
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Recruitment details |
Subjects were recruited from 11 sites in Germany, France and the Netherlands from Nov 2014 to May 2015. | ||||||||||||||||||||||||||||||
Pre-assignment
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Screening details |
A total of 218 subjects were screened for this trial. Out of which 204 subjects fulfilled all inclusion and none of the exclusion criteria and were randomly assigned in a 2:1 ratio to either the PICOPREP tailored dosing schedule (n=131) or to the PICOPREP day-before dosing schedule (n=73). | ||||||||||||||||||||||||||||||
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 |
Single blind | ||||||||||||||||||||||||||||||
Roles blinded |
Assessor [1] | ||||||||||||||||||||||||||||||
Blinding implementation details |
Subjects were randomised to one of the two dosing schedules according to a computer generated randomisation list prepared for all trial sites. The dosing schedule was not available to any member of the site staff involved in the conduct and evaluation of the trial, except the Investigator, and the unblinded trial coordinator, until the trial database was locked. The participating subjects and the monitor knew the treatment allocation once the subject was randomised.
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Arms
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Are arms mutually exclusive |
Yes
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Arm title
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PICOPREP day-before dosing schedule | ||||||||||||||||||||||||||||||
Arm description |
PICOPREP Dose 1 was given before 8:00 AM on day before colonoscopy and Dose 2 was given 6-8 hours after Dose 1. | ||||||||||||||||||||||||||||||
Arm type |
Active comparator | ||||||||||||||||||||||||||||||
Investigational medicinal product name |
PICOPREP (Sodium picosulfate 10 mg, Magnesium oxide 3.5 g, and Citric acid 12 g)
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Powder for oral solution
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Routes of administration |
Oral use
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Dosage and administration details |
Dose 1 was given before 8:00 AM on day before colonoscopy and Dose 2 was given 6-8 hours after Dose 1.
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Arm title
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PICOPREP tailored dosing schedule | ||||||||||||||||||||||||||||||
Arm description |
PICOPREP Dose 1 was given 10-18 hours before colonoscopy and Dose 2 was given 4-6 hours before colonoscopy. | ||||||||||||||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||||||||||||||
Investigational medicinal product name |
PICOPREP (Sodium picosulfate 10 mg, Magnesium oxide 3.5 g, and Citric acid 12 g)
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Powder for oral solution
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Routes of administration |
Oral use
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Dosage and administration details |
Dose 1 was given 10-18 hours before colonoscopy and Dose 2 was given 4-6 hours before colonoscopy.
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Notes [1] - The roles blinded appear inconsistent with a simple blinded trial. Justification: Considering the dosage regimens used in this trial, both Investigator and subjects (once randomised to a treatment group) were aware of the treatment provided. All members of the site personnel involved in the conduct and/or evaluation of the trial remained blinded to the treatment. |
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Baseline characteristics reporting groups
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Reporting group title |
PICOPREP day-before dosing schedule
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Reporting group description |
PICOPREP Dose 1 was given before 8:00 AM on day before colonoscopy and Dose 2 was given 6-8 hours after Dose 1. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
PICOPREP tailored dosing schedule
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Reporting group description |
PICOPREP Dose 1 was given 10-18 hours before colonoscopy and Dose 2 was given 4-6 hours before colonoscopy. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Subject analysis sets
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Subject analysis set title |
Intention-to-Treat (ITT) Analysis Set
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Subject analysis set type |
Intention-to-treat | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject analysis set description |
The ITT analysis set consisted of all randomised subjects.
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Subject analysis set title |
Per-Protocol (PP) Analysis Set
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Subject analysis set type |
Per protocol | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject analysis set description |
The PP analysis set consisted of ITT analysis set subjects who had no major protocol deviations that would impact efficacy analysis.
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Subject analysis set title |
Safety Analysis Set
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Subject analysis set type |
Safety analysis | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject analysis set description |
The Safety Analysis Set comprised of all treated subjects and was analysed according to the actual treatment received.
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End points reporting groups
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Reporting group title |
PICOPREP day-before dosing schedule
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Reporting group description |
PICOPREP Dose 1 was given before 8:00 AM on day before colonoscopy and Dose 2 was given 6-8 hours after Dose 1. | ||
Reporting group title |
PICOPREP tailored dosing schedule
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Reporting group description |
PICOPREP Dose 1 was given 10-18 hours before colonoscopy and Dose 2 was given 4-6 hours before colonoscopy. | ||
Subject analysis set title |
Intention-to-Treat (ITT) Analysis Set
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Subject analysis set type |
Intention-to-treat | ||
Subject analysis set description |
The ITT analysis set consisted of all randomised subjects.
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Subject analysis set title |
Per-Protocol (PP) Analysis Set
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Subject analysis set type |
Per protocol | ||
Subject analysis set description |
The PP analysis set consisted of ITT analysis set subjects who had no major protocol deviations that would impact efficacy analysis.
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Subject analysis set title |
Safety Analysis Set
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Subject analysis set type |
Safety analysis | ||
Subject analysis set description |
The Safety Analysis Set comprised of all treated subjects and was analysed according to the actual treatment received.
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End point title |
Overall colon cleansing procedure (ITT) measured by the total Ottawa Scale | ||||||||||||
End point description |
Measured by the total Ottawa Scale score during the colonoscopy performed by a colonoscopist blinded to the dosing schedules. Total Ottawa Scale score was computed by adding the ratings (0 to 4; 0=excellent, 1=good, 2=fair, 3=poor, 4=inadequate) for each of the three colon segments and the overall fluid quality rating (0 to 2). The final score ranged from 0 (excellent) to 14 (solid stool in each colon segment and lots of fluid).
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End point type |
Primary
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End point timeframe |
Day 1 (day of colonoscopy)
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Statistical analysis title |
Analysis of overall colon cleansing (ITT) | ||||||||||||
Statistical analysis description |
Null hypothesis was no treatment difference between the two dosing schedules. Adjusted estimated treatment mean difference was calculated as PICOPREP tailored dosing schedule minus PICOPREP day-before dosing schedule.
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Comparison groups |
PICOPREP day-before dosing schedule v PICOPREP tailored dosing schedule
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Number of subjects included in analysis |
204
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Analysis specification |
Pre-specified
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Analysis type |
non-inferiority [1] | ||||||||||||
P-value |
< 0.0001 [2] | ||||||||||||
Method |
ANCOVA | ||||||||||||
Parameter type |
Adjusted estimated mean difference | ||||||||||||
Point estimate |
-3.93
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
-4.99 | ||||||||||||
upper limit |
-2.87 | ||||||||||||
Notes [1] - Non-inferiority is assessed by examining whether the upper limit of the 95% confidence interval is less than the specified non-inferiority margin of 1.5 points. [2] - p-value corresponds to a two-sided test of superiority. |
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End point title |
Overall Colon Cleansing Procedure (PP) Measured by the total Ottawa Scale | ||||||||||||
End point description |
Measured by the total Ottawa Scale score during the colonoscopy which is performed by a colonoscopist blinded to the dosing schedules. Total Ottawa Scale score was computed by adding the ratings (0 to 4; 0=excellent, 1=good, 2=fair, 3=poor, 4=inadequate) for each of the three colon segments and the overall fluid quality rating (0 to 2). The final score ranged from 0 (excellent) to 14 (solid stool in each colon segment and lots of fluid).
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End point type |
Primary
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End point timeframe |
Day 1 (day of colonoscopy)
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Statistical analysis title |
Analysis of overall colon cleansing (PP) | ||||||||||||
Statistical analysis description |
Null hypothesis was no treatment difference between the two dosing schedules. Adjusted estimated treatment mean difference was calculated as PICOPREP tailored dosing schedule minus PICOPREP day-before dosing schedule.
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Comparison groups |
PICOPREP day-before dosing schedule v PICOPREP tailored dosing schedule
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Number of subjects included in analysis |
186
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Analysis specification |
Pre-specified
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Analysis type |
non-inferiority [3] | ||||||||||||
P-value |
< 0.0001 [4] | ||||||||||||
Method |
ANCOVA | ||||||||||||
Parameter type |
Adjusted estimated mean difference | ||||||||||||
Point estimate |
-4.38
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
-5.34 | ||||||||||||
upper limit |
-3.41 | ||||||||||||
Notes [3] - Non-inferiority is assessed by examining whether the upper limit of the 95% confidence interval is less than the specified non-inferiority margin of 1.5 points. [4] - p-value corresponds to a two-sided test of superiority. |
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End point title |
Ascending colon cleansing responder status (ITT) | ||||||||||||
End point description |
Percentage of subjects classified as responders, i.e. Ottawa Scale score of either 0 (excellent) or 1 (good), during colonoscopy performed by a colonoscopist blinded to the dosing schedules.
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End point type |
Secondary
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End point timeframe |
Day 1 (day of colonoscopy)
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Statistical analysis title |
Analysis of ascending colon cleansing (ITT) | ||||||||||||
Statistical analysis description |
Null hypothesis was no treatment difference between the two dosing schedules. The estimated odds ratio compares the odds of being a responder in the PICOPREP tailored dosing schedule vs. the PICOPREP day-before dosing schedule.
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Comparison groups |
PICOPREP day-before dosing schedule v PICOPREP tailored dosing schedule
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Number of subjects included in analysis |
204
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Analysis specification |
Pre-specified
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Analysis type |
other | ||||||||||||
P-value |
< 0.0001 [5] | ||||||||||||
Method |
Regression, Logistic | ||||||||||||
Parameter type |
Adjusted estimated odds ratio | ||||||||||||
Point estimate |
9.18
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
4.36 | ||||||||||||
upper limit |
19.32 | ||||||||||||
Notes [5] - p-value corresponds to a two-sided test of superiority. |
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End point title |
Frequency and intensity of adverse events | |||||||||||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
From baseline (screening) up to day 10 after colonoscopy
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No statistical analyses for this end point |
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End point title |
Clinically significant changes in vital signs (pulse and blood pressure) | |||||||||||||||
End point description |
Mean change from baseline to the end-of-trial was observed for pulse and blood pressure (systolic and diastolic).
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End point type |
Secondary
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End point timeframe |
From baseline (screening) up to day 10 after colonoscopy (inclusive of assessment at each visit)
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No statistical analyses for this end point |
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End point title |
Clinically significant changes in laboratory values (haematology, clinical chemistry, coagulation and urinalysis) | |||||||||||||||||||||
End point description |
Laboratory parameters included routine haematology, clinical chemistry, coagulation and urinalysis. With the exception of urinalysis and urine pregnancy test, which was performed as dip-stick analyses at the trial site, all laboratory tests were analysed by a central laboratory.
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End point type |
Secondary
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End point timeframe |
From baseline (screening) up to day 10 after colonoscopy (inclusive of assessment at each visit)
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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 were recorded from baseline till the end-of-trial (10 days after colonoscopy).
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Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
17.0
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Reporting groups
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Reporting group title |
PICOPREP tailored dosing schedule
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Reporting group description |
Subjects in this group received Dose 1 of PICOPREP 10-18 hours before colonoscopy and Dose 2 at 4-6 hours before colonoscopy. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
PICOPREP day-before dosing schedule
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Reporting group description |
Subjects in this group received Dose 1 of PICOPREP before 8:00 AM on day before colonoscopy and received Dose 2 at 6-8 hours after Dose 1. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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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29 Sep 2014 |
The main reason for this amendment was to include the contraindications mentioned in the summary of products characteristics of PICOPREP, ‘Rhabdomyolysis, Nausea and vomiting, Severe dehydration, and Hypermagnesaemia’ to the list of exclusion criteria, as suggested by the Agence Nationale de Sécurité du Medicament et des Produits de Santé (ANMS) in France. In addition, minor changes and editorial clarifications have been made to the protocol.
This was applicable for all sites. |
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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 |