Clinical Trial Results:
Pilot study to investigate the clinical effect of orally inhaled AP301 on treatment of primary graft dysfunction (PGD) in mechanically ventilated patients after primary lung transplantation
Summary
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EudraCT number |
2013-000716-21 |
Trial protocol |
AT |
Global end of trial date |
18 Mar 2015
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Results information
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Results version number |
v1(current) |
This version publication date |
06 Aug 2016
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First version publication date |
06 Aug 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 |
AP301-III-001
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
- | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Apeptico GmbH
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Sponsor organisation address |
Mariahilfer Straße 136, Vienna, Austria, 1150
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Public contact |
Head of Company, Apeptico Forschung und Entwicklung GmbH, 0043 6641432919, b.fischer@apeptico.com
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Scientific contact |
Head of Company, Apeptico Forschung und Entwicklung GmbH, 0043 6641432919, b.fischer@apeptico.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 |
02 Nov 2015
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Is this the analysis of the primary completion data? |
Yes
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Primary completion date |
18 Mar 2015
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Global end of trial reached? |
Yes
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Global end of trial date |
18 Mar 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 |
Primary objective was to assess the clinical effect of orally inhaled AP301 on treatment of primary graft dysfunction (PGD) according to ISHLT (International Society for Heart and Lung Transplantation) criteria in patients after primary LuTX in comparison to placebo.
Secondary Objectives were to
-evaluate recipients mortality at 30 days after transplantation (%)
-duration of intubation
-requirement of mechanical ventilation
-length of ICU stay
-incidence of acute rejections
-freedom of chronic lung allograft dysfunction
-graft survival within 30 days
-local and systematic safety and tolerability of AP 301
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Protection of trial subjects |
To guarantee the highest possible protection of subjects, safety measures were put in place throughout Screening, Treatment and Follow up. Withdrawal rules including safety endpoints were defined carefully.
Specific safety measures concerned :
Administration of AP301
AP301 or any other ingredients of the IMP can potentially cause hypersensitivity reactions, including serious anaphylactic/anaphylactoid reactions . Local ICU staff had proven expertise in rapid diagnoses and treatment of these disease patterns. The Staff was advised to withdraw any subject, who showes corresponding symptoms immediately from this study. Resuscitation measures including airway management, administration of large volumes of intravenous fluids and 1:1000 adrenalin solution for i.m. injection were all time and without delay enforceable at ICU.
The subject's protection from dose dependent side effects had crucial importance.For the subject’s safety, selection oft he administered dose was based on prior scientific evidence about pharmacokinetics- and dynamics of AP301 and influencing factors of the nebulizing process. Prior to site initiation, all site staff had received hands- on training regarding the dosage regimen and handling of the nebulizer unit.
Medical and Safety Assessment
During screening, Inclusion/Exclusion criteria, medical history, physical examination, vital signs and pregnancy test (if applicable) were evaluated. During treatment, vital signs were assessed daily. On EOT visit, physical examination was repeated. Monitoring of ventilation parameters and evaluation of PGD score, CXR and EVLW was carried out daily during treatment in accordance to national LuTX guidelines. Special Safety Assessment including Hematology, Clinical Chemistry and blood gasses was carried out daily during screening and treatment. As many patients were multimorbid,the need for change in comitant medication was frequently evaluated and, if necessary, conducted by qualified staff
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Background therapy |
As this study has been performed with ICU patients under severe health conditions, a high number of different concomitant medications have been administered. Apart from cancer Therapy (chemotherapy or biological), any other medically indicated medications were allowed, including immunsupressive therapies. Modifications of concomitant treatment during the clinical investigation were allowed as necessary and were documented in the patients record by staff with proven qualification. | ||
Evidence for comparator |
Treatment of PGD is supportive and in severe cases may include lung-protective ventilation strategies , inhaled nitric oxide and temporary ECMO support.Retransplantation represents a last resort (Fuehner, Grer, Welte&Gottlieb, 2012) In cases of established PGD, NO-therapy seems to be useful for improving gas exchange it. Nevertheless, there are currently no studies supporting its use for ventilatory or survival benefit. Regarding prophylactic inhaled NO there are currently no randomised controlled studies that demonstrate a reduction in morbidity( time to extubation, length of ICU stay or hospital stay and mortality ( Tavare& Tsakok, 2011) If compared to other investigational medicinal products, AP301 represents a new molecular type and new concept for prevention and treatment of pulmonary permeability edema and prevention of ischemia - reperfusion injury. The test compound- for the first time - represents a molecule that directly improves alveolar fluid clearance and that restores the endothelial barrier function of the micro-capillary and alveolar tissue.AP301 is expected to therapeutically treat primary graft dysfunction by reducing leakage fluids from capillaries in the lungs, by activating alveolar edema clearance and by restoring the endothelial barrier function. The therapeutic potential of AP301 in PGD has been demonstrated in preclinical studies in rats (Hemacher et al, 2010). In another preclinical transplantation study in pigs at the department of Thoracic Surgery of the Medical department of the Medical University of Vienna, it was demonstrated that inhalative application of nebulized AP301 during an extracorporal mode simulating LUTX to severely pre-damaged donor lungs significantly improved the gas exchange compared to placebo treatment(Aigner et al, 2013).Also, the therapeutic potential of AP301 to treat pulmonary permeability edema has been highlighted in Critical Care medicine (Matthay, 2008) and Vascular Pharmacology (Black,2010) | ||
Actual start date of recruitment |
20 Jun 2013
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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 |
Austria: 20
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Worldwide total number of subjects |
20
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EEA total number of subjects |
20
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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) |
20
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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 |
Start date: 20.6.2013 Trial country: Austria Planned number of subjects: 20 Actual number of subjects enrolled: 20 The subjects were recruited from the AKH 's waiting list for primary single or double LuTX | |||||||||||||||
Pre-assignment
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Screening details |
Study screening procedures included the following: Inclusion/Exclusion criteria, demographic data, physical examination, vital signs, medical history and concomitant diseases, clinical laboratory tests and pregnancy test for females. | |||||||||||||||
Pre-assignment period milestones
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Number of subjects started |
20 | |||||||||||||||
Number of subjects completed |
20 | |||||||||||||||
Period 1
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Period 1 title |
Treatment-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 | |||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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AP301 | |||||||||||||||
Arm description |
Subjects randomized to AP301 administration | |||||||||||||||
Arm type |
Experimental | |||||||||||||||
Investigational medicinal product name |
AP301
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Powder and solvent for nebuliser solution
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Routes of administration |
Inhalation use
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Dosage and administration details |
The IMP was reconstituted in water for injection to a final concentration of 25mg/ml.After randomization patients received 5ml of the study drug according to treatment allocation via endotracheal nebulisation every 12 hours for a maximum of 7 days using an Aerob Solo nebulizer (Aerogen, Galway, Ireland).This equates to a nebulizer filling dose of 125 mg AP301 peptide. This filling dose corresponds with an orally delivered dose of 87,6 mg AP301.
The timepoints for inhalations were 9.00 a.m. (+/-60 min) and 9.00 p.m. (+/-60 min).After diagnosis of PGD , study drug was administered immediately, if the interval for next regularly scheduled time point for administration would have exceeded more than three hours.
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Arm title
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PLACEBO | |||||||||||||||
Arm description |
Subjects randomized to Placebo administration | |||||||||||||||
Arm type |
Placebo | |||||||||||||||
Investigational medicinal product name |
0.9% Na-Cl Solution
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Solution for infusion
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Routes of administration |
Inhalation use
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Dosage and administration details |
5 ml nebulizer filling dose was inhaled after endotracheally nebulization via device (Aeroneb® solo
nebulizing system) every 12 hours for a total of 7 days or till day of extubation.
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Period 2
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Period 2 title |
Follow-up Period
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Is this the baseline period? |
No | |||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Double blind | |||||||||||||||
Roles blinded |
Subject, Investigator | |||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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AP301 | |||||||||||||||
Arm description |
Patients who had received AP301 in period 1 | |||||||||||||||
Arm type |
Experimental | |||||||||||||||
Investigational medicinal product name |
AP301
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Powder and solvent for nebuliser solution
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Routes of administration |
Inhalation use
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Dosage and administration details |
The IMP was reconstituted in water for injection to a final concentration of 25mg/ml.After randomization patients received 5ml of the study drug according to treatment allocation via endotracheal nebulisation every 12 hours for a maximum of 7 days using an Aerob Solo nebulizer (Aerogen, Galway, Ireland).This equates to a nebulizer filling dose of 125 mg AP301 peptide. This filling dose corresponds with an orally delivered dose of 87,6 mg AP301.
The timepoints for inhalations were 9.00 a.m. (+/-60 min) and 9.00 p.m. (+/-60 min).After diagnosis of PGD , study drug was administered immediately, if the interval for next regularly scheduled time point for administration would have exceeded more than three hours.
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Arm title
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PLACEBO | |||||||||||||||
Arm description |
Patients who had received Placebo in period 1 | |||||||||||||||
Arm type |
Placebo | |||||||||||||||
Investigational medicinal product name |
0.9% Na-Cl Solution
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Solution for infusion
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Routes of administration |
Inhalation use
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Dosage and administration details |
Same dosage as IMP applied, 5ml NaCl solution for inhalation prepared
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Baseline characteristics reporting groups
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Reporting group title |
AP301
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Reporting group description |
Subjects randomized to AP301 administration | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
PLACEBO
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Reporting group description |
Subjects randomized to Placebo administration | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Subject analysis sets
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Subject analysis set title |
ITT
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Subject analysis set type |
Modified intention-to-treat | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject analysis set description |
This set includes subjects who where randomized and reveived at least one dose study drug
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Subject analysis set title |
PP
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Subject analysis set type |
Per protocol | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject analysis set description |
This set comprises all subjects who received study drug and did not viloate the protocol in a way that might affect the evaluation of the effect of the study drugs on the primary objective,i.e., without major protocol violations
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End points reporting groups
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Reporting group title |
AP301
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Reporting group description |
Subjects randomized to AP301 administration | ||
Reporting group title |
PLACEBO
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Reporting group description |
Subjects randomized to Placebo administration | ||
Reporting group title |
AP301
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Reporting group description |
Patients who had received AP301 in period 1 | ||
Reporting group title |
PLACEBO
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Reporting group description |
Patients who had received Placebo in period 1 | ||
Subject analysis set title |
ITT
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Subject analysis set type |
Modified intention-to-treat | ||
Subject analysis set description |
This set includes subjects who where randomized and reveived at least one dose study drug
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Subject analysis set title |
PP
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Subject analysis set type |
Per protocol | ||
Subject analysis set description |
This set comprises all subjects who received study drug and did not viloate the protocol in a way that might affect the evaluation of the effect of the study drugs on the primary objective,i.e., without major protocol violations
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End point title |
Change in Arterial blood oxygen tension (paO2) | ||||||||||||
End point description |
PaO2 was assessed once daily during treatment period. It has been assessed using BGA measured on FiO2 =1.0 (=100%) and PEEP=5 for at least 10 minutes while still on mechanical ventilation.For the main comparison of the primary effiacy variable, means of the individual LOCF-PaO2between baseline and treatment day 3 were calculated.
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End point type |
Primary
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End point timeframe |
change of PAO2 between T0 (= time of PGD diagnosis) and day 3.
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Statistical analysis title |
Statistical comparison of PaO2 data | ||||||||||||
Comparison groups |
PLACEBO v AP301
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Number of subjects included in analysis |
20
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Analysis specification |
Pre-specified
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Analysis type |
non-inferiority | ||||||||||||
P-value |
≤ 0.05 | ||||||||||||
Method |
t-test, 1-sided | ||||||||||||
Confidence interval |
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Statistical analysis title |
Statistical comparison of PaO2 data | ||||||||||||
Comparison groups |
AP301 v PLACEBO
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Number of subjects included in analysis |
20
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Analysis specification |
Pre-specified
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Analysis type |
non-inferiority | ||||||||||||
P-value |
= 0.049 [1] | ||||||||||||
Method |
Wilcoxon (Mann-Whitney) | ||||||||||||
Confidence interval |
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Notes [1] - no hypothesis tested and the power of 10 patients per group would only be 0.6. |
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End point title |
Duration of intubation within 30 days after enrolment | ||||||||||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Day of enrolment till day 30 after transplantation
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No statistical analyses for this end point |
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End point title |
Recipient mortality 30 days after transplantation | ||||||||||||
End point description |
death rate in the study population within 30 days after transplantation
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End point type |
Secondary
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End point timeframe |
Day 30 after transplantation
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No statistical analyses for this end point |
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End point title |
Oxygenation index once daily until end of treatment or until extubation | |||||||||||||||||||||
End point description |
As few data after day 3 was available,only values till this day were put into consideration
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End point type |
Secondary
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End point timeframe |
day of enrolment till day 3
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No statistical analyses for this end point |
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End point title |
Requirement of mechanical ventilation within 30 days after enrolment | ||||||||||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Within 30 days after enrolment
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No statistical analyses for this end point |
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End point title |
Incidence of acute rejection | ||||||||||||||||||||
End point description |
Percentage of subjects diagnosed with acute transplant rejection
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End point type |
Secondary
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End point timeframe |
Day of enrolment till follow-up interview
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No statistical analyses for this end point |
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End point title |
Freedom of chronic lung allograft dysfunction (CLAD) | ||||||||||||||||||||
End point description |
Percentage of subjects not diagnosed with chronic lung allograft dysfunction (CLAD)
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End point type |
Secondary
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End point timeframe |
Day of enrolment till follow up interview
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No statistical analyses for this end point |
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End point title |
Graft survival within 30 days | ||||||||||||||||||||
End point description |
Percentage of patients that have a functioning transplant at the end the given time period
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End point type |
Secondary
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End point timeframe |
Day of enrolment till follow -up Interview
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No statistical analyses for this end point |
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End point title |
Length of ICU stay within 30 days after enrolment | ||||||||||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Treatment and Follow Up
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No statistical analyses for this end point |
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End point title |
Overall survival within 30 days | ||||||||||||||||||||
End point description |
percentage of patients that are alive at the end of the given time period
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End point type |
Secondary
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End point timeframe |
Day 30 after transplantation
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No statistical analyses for this end point |
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End point title |
EVLW (measured with PiCCO technique)measured twice daily within 60 to 120 minutes after study drug administration until end of treatment | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
daily during treatment period
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No statistical analyses for this end point |
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End point title |
Local and systematic safety and tolerability of AP301 | |||||||||||||||||||||||||
End point description |
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End point type |
Other pre-specified
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End point timeframe |
Treatment and Follow Up
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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 |
treatment period and follow period
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Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
18.0
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Reporting groups
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Reporting group title |
Ap301 group
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Reporting group description |
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Reporting group title |
Placebo
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Reporting group description |
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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 |