Clinical Trial Results:
Efficacy and Safety of LEO 43204 in Field Treatment of Actinic Keratosis on Balding Scalp including 12-month follow-up
Part 1: 3-day treatment period including an 8-week follow-up period
Part 2: extended 12-month follow-up period
A phase 3, multi-centre, randomised, parallel group, double-blind, vehicle controlled trial
Summary
|
|
EudraCT number |
2015-002452-27 |
Trial protocol |
DE |
Global end of trial date |
27 Oct 2017
|
Results information
|
|
Results version number |
v1(current) |
This version publication date |
20 Dec 2018
|
First version publication date |
20 Dec 2018
|
Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
|
|||
Trial identification
|
|||
Sponsor protocol code |
LP0084-1196
|
||
Additional study identifiers
|
|||
ISRCTN number |
- | ||
US NCT number |
NCT02549352 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
|
|||
Sponsor organisation name |
LEO Pharma A/S
|
||
Sponsor organisation address |
Industriparken 55, Ballerup, Denmark, 2750
|
||
Public contact |
Clinical Disclosure Specialist, LEO Pharma A/S, 45 44945888, disclosure@leo-pharma.com
|
||
Scientific contact |
Clinical Disclosure Specialist, LEO Pharma A/S, 45 44945888, disclosure@leo-pharma.com
|
||
Paediatric regulatory details
|
|||
Is trial part of an agreed paediatric investigation plan (PIP) |
No
|
||
Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
|
||
Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
|
||
Results analysis stage
|
|||
Analysis stage |
Final
|
||
Date of interim/final analysis |
27 Feb 2018
|
||
Is this the analysis of the primary completion data? |
Yes
|
||
Primary completion date |
27 Oct 2017
|
||
Global end of trial reached? |
Yes
|
||
Global end of trial date |
27 Oct 2017
|
||
Was the trial ended prematurely? |
No
|
||
General information about the trial
|
|||
Main objective of the trial |
To confirm the efficacy of LEO 43204 gel (0.037% for scalp) in actinic keratosis (AK) when applied topically once daily for 3 consecutive days as field treatment
|
||
Protection of trial subjects |
This clinical trial was conducted in accordance with the revision current at the start of the trial
of the World Medical Association’s Declaration of Helsinki – Ethical Principles for Medical
Research Involving Human Subjects.
All subjects received written and verbal information concerning the clinical trial. This
information emphasised that participation in the clinical trial was voluntary and that the
subject could withdraw from the clinical trial at any time and for any reason. All subjects
were given an opportunity to ask questions and were given sufficient time to consider before
consenting.
|
||
Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
20 Nov 2015
|
||
Long term follow-up planned |
Yes
|
||
Long term follow-up rationale |
Safety | ||
Long term follow-up duration |
12 Months | ||
Independent data monitoring committee (IDMC) involvement? |
No
|
||
Population of trial subjects
|
|||
Number of subjects enrolled per country |
|||
Country: Number of subjects enrolled |
United States: 205
|
||
Country: Number of subjects enrolled |
Germany: 70
|
||
Country: Number of subjects enrolled |
Italy: 35
|
||
Worldwide total number of subjects |
310
|
||
EEA total number of subjects |
105
|
||
Number of subjects enrolled per age group |
|||
In utero |
0
|
||
Preterm newborn - gestational age < 37 wk |
0
|
||
Newborns (0-27 days) |
0
|
||
Infants and toddlers (28 days-23 months) |
0
|
||
Children (2-11 years) |
0
|
||
Adolescents (12-17 years) |
0
|
||
Adults (18-64 years) |
77
|
||
From 65 to 84 years |
214
|
||
85 years and over |
19
|
|
||||||||||||||||||||||||||||
Recruitment
|
||||||||||||||||||||||||||||
Recruitment details |
Subjects were followed for 8 weeks following the first application of investigational medicinal product (IMP) at Day 1 (3-day treatment period including an 8-week follow-up period) and for an additional 12 months following Week 8 (extended 12-month follow-up period). | |||||||||||||||||||||||||||
Pre-assignment
|
||||||||||||||||||||||||||||
Screening details |
391 subjects were enrolled, 80 were screening failures, and 311 subjects were randomised. Only 310 of the randomised subjects were treated with investigational medicinal product (IMP), the number of subjects treated is reflected as the number of subjects started in the first period. | |||||||||||||||||||||||||||
Period 1
|
||||||||||||||||||||||||||||
Period 1 title |
3-day Treatment and 8-week Follow-up
|
|||||||||||||||||||||||||||
Is this the baseline period? |
Yes | |||||||||||||||||||||||||||
Allocation method |
Randomised - controlled
|
|||||||||||||||||||||||||||
Blinding used |
Double blind | |||||||||||||||||||||||||||
Roles blinded |
Subject, Investigator | |||||||||||||||||||||||||||
Arms
|
||||||||||||||||||||||||||||
Are arms mutually exclusive |
Yes
|
|||||||||||||||||||||||||||
Arm title
|
LEO 43204 0.037% Gel - Treatment Period Including Follow-up | |||||||||||||||||||||||||||
Arm description |
Treatment once daily with LEO 43204 0.037% gel for 3 consecutive days applied on the scalp. | |||||||||||||||||||||||||||
Arm type |
Experimental | |||||||||||||||||||||||||||
Investigational medicinal product name |
LEO 43204 gel
|
|||||||||||||||||||||||||||
Investigational medicinal product code |
||||||||||||||||||||||||||||
Other name |
Ingenol disoxate
|
|||||||||||||||||||||||||||
Pharmaceutical forms |
Gel
|
|||||||||||||||||||||||||||
Routes of administration |
Topical use
|
|||||||||||||||||||||||||||
Dosage and administration details |
Ingenol disoxate 0.037% gel applied on the scalp once daily for 3 consecutive days.
|
|||||||||||||||||||||||||||
Arm title
|
Vehicle Gel - Treatment Period Including Follow-up | |||||||||||||||||||||||||||
Arm description |
Treatment once daily with vehicle gel for 3 consecutive days applied on the scalp. 1 subject randomised to the vehicle group received a mix of ingenol disoxate gel and vehicle in error and was therefore included in the ingenol disoxate gel group in the safety set. | |||||||||||||||||||||||||||
Arm type |
Placebo | |||||||||||||||||||||||||||
Investigational medicinal product name |
Vehicle Gel
|
|||||||||||||||||||||||||||
Investigational medicinal product code |
||||||||||||||||||||||||||||
Other name |
Placebo
|
|||||||||||||||||||||||||||
Pharmaceutical forms |
Gel
|
|||||||||||||||||||||||||||
Routes of administration |
Topical use
|
|||||||||||||||||||||||||||
Dosage and administration details |
Vehicle gel applied on the scalp once daily for 3 consecutive days.
|
|||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||
Period 2
|
||||||||||||||||||||||||||||
Period 2 title |
12-month Follow-up
|
|||||||||||||||||||||||||||
Is this the baseline period? |
No | |||||||||||||||||||||||||||
Allocation method |
Randomised - controlled
|
|||||||||||||||||||||||||||
Blinding used |
Double blind | |||||||||||||||||||||||||||
Roles blinded |
Subject, Investigator | |||||||||||||||||||||||||||
Arms
|
||||||||||||||||||||||||||||
Are arms mutually exclusive |
Yes
|
|||||||||||||||||||||||||||
Arm title
|
LEO 43204 0.037% Gel - Extended Follow-up | |||||||||||||||||||||||||||
Arm description |
Treatment once daily with LEO 43204 0.037% gel for 3 consecutive days applied on the scalp. | |||||||||||||||||||||||||||
Arm type |
Experimental | |||||||||||||||||||||||||||
Investigational medicinal product name |
LEO 43204 gel
|
|||||||||||||||||||||||||||
Investigational medicinal product code |
||||||||||||||||||||||||||||
Other name |
Ingenol disoxate
|
|||||||||||||||||||||||||||
Pharmaceutical forms |
Gel
|
|||||||||||||||||||||||||||
Routes of administration |
Topical use
|
|||||||||||||||||||||||||||
Dosage and administration details |
Ingenol disoxate 0.037% gel applied on the scalp once daily for 3 consecutive days.
|
|||||||||||||||||||||||||||
Arm title
|
Vehicle Gel - Extended Follow-up | |||||||||||||||||||||||||||
Arm description |
Treatment once daily with vehicle gel for 3 consecutive days applied on the scalp. | |||||||||||||||||||||||||||
Arm type |
Placebo | |||||||||||||||||||||||||||
Investigational medicinal product name |
Vehicle Gel
|
|||||||||||||||||||||||||||
Investigational medicinal product code |
||||||||||||||||||||||||||||
Other name |
Placebo
|
|||||||||||||||||||||||||||
Pharmaceutical forms |
Gel
|
|||||||||||||||||||||||||||
Routes of administration |
Topical use
|
|||||||||||||||||||||||||||
Dosage and administration details |
Vehicle gel applied on the scalp once daily for 3 consecutive days.
|
|||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||
Notes [1] - The number of subjects starting the period is not consistent with the number completing the preceding period. It is expected the number of subjects starting the subsequent period will be the same as the number completing the preceding period. Justification: Of the 303 subjects who completed the 3-day treatment and 8-week Follow-up period, 3 subjects in the vehicle group were not included in the 12-month Follow-up because they withdrew after Week 8. |
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Baseline characteristics reporting groups
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
LEO 43204 0.037% Gel - Treatment Period Including Follow-up
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group description |
Treatment once daily with LEO 43204 0.037% gel for 3 consecutive days applied on the scalp. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Vehicle Gel - Treatment Period Including Follow-up
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group description |
Treatment once daily with vehicle gel for 3 consecutive days applied on the scalp. 1 subject randomised to the vehicle group received a mix of ingenol disoxate gel and vehicle in error and was therefore included in the ingenol disoxate gel group in the safety set. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|
|||
End points reporting groups
|
|||
Reporting group title |
LEO 43204 0.037% Gel - Treatment Period Including Follow-up
|
||
Reporting group description |
Treatment once daily with LEO 43204 0.037% gel for 3 consecutive days applied on the scalp. | ||
Reporting group title |
Vehicle Gel - Treatment Period Including Follow-up
|
||
Reporting group description |
Treatment once daily with vehicle gel for 3 consecutive days applied on the scalp. 1 subject randomised to the vehicle group received a mix of ingenol disoxate gel and vehicle in error and was therefore included in the ingenol disoxate gel group in the safety set. | ||
Reporting group title |
LEO 43204 0.037% Gel - Extended Follow-up
|
||
Reporting group description |
Treatment once daily with LEO 43204 0.037% gel for 3 consecutive days applied on the scalp. | ||
Reporting group title |
Vehicle Gel - Extended Follow-up
|
||
Reporting group description |
Treatment once daily with vehicle gel for 3 consecutive days applied on the scalp. |
|
|||||||||||||
End point title |
Complete Clearance of Actinic Keratosis (AK) | ||||||||||||
End point description |
The number of clinically visible actinic keratosis lesions (AKs) identified in the treatment area was recorded at Day 1 (baseline), Weeks 4, and 8.
Complete clearance was defined as no clinically visible AKs in the treatment area.
The table shows the percentage of mean number of participants across imputations with complete clearance at Week 8.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
At Week 8
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Analysis 1 | ||||||||||||
Comparison groups |
LEO 43204 0.037% Gel - Treatment Period Including Follow-up v Vehicle Gel - Treatment Period Including Follow-up
|
||||||||||||
Number of subjects included in analysis |
310
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
P-value |
< 0.001 [1] | ||||||||||||
Method |
Mantel-Haenszel | ||||||||||||
Parameter type |
Ratio of clearance rates | ||||||||||||
Point estimate |
7.83
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
2.58 | ||||||||||||
upper limit |
23.71 | ||||||||||||
Notes [1] - Mantel-Haenszel estimate (0.037% relative to vehicle), adjusted for pooled sites. |
|
|||||||||||||
End point title |
Partial Clearance | ||||||||||||
End point description |
The number of clinically visible Actinic keratosis lesions (AKs) identified in the treatment area was recorded at Day 1, Weeks 4, and Week 8.
Partial clearance was defined as at least 75% reduction from baseline in the number of clinically visible AKs in the treatment area.
The table shows the percentage of mean number of subjects across imputations with complete clearance at Week 8.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
At Week 8
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Statistical Analysis 1 | ||||||||||||
Statistical analysis description |
The p-values for secondary endpoints have been corrected by the Holm-Bonferroni method to account for multiplicity. The prespecified multiplicity adjustment by the Holm-Bonferroni method requires the ordering of the p-values for the secondary endpoints by size.
Mantel-Haenszel estimate (0.037% relative to vehicle), adjusted for pooled sites.
|
||||||||||||
Comparison groups |
LEO 43204 0.037% Gel - Treatment Period Including Follow-up v Vehicle Gel - Treatment Period Including Follow-up
|
||||||||||||
Number of subjects included in analysis |
310
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
P-value |
< 0.001 | ||||||||||||
Method |
Mantel-Haenszel | ||||||||||||
Parameter type |
Ratio of clearance rates | ||||||||||||
Point estimate |
5.91
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
3.32 | ||||||||||||
upper limit |
10.51 |
|
|||||||||||||
End point title |
Partial Clearance | ||||||||||||
End point description |
The number of clinically visible Actinic keratosis lesions (AKs) identified in the treatment area was recorded at Day 1, Week 4, and Week 8.
Partial clearance was defined as at least 75% reduction from baseline in the number of clinically visible AKs in the treatment area.
The table shows the percentage of mean number of subjects across imputations with complete clearance at Week 4.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
At Week 4
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Statistical Analysis 1 | ||||||||||||
Statistical analysis description |
The p-values for secondary endpoints have been corrected by the Holm-Bonferroni method to account for multiplicity. The prespecified multiplicity adjustment by the Holm-Bonferroni method requires the ordering of the p-values for the secondary endpoints by size.
Mantel-Haenszel estimate (0.037% relative to vehicle), adjusted for pooled sites.
|
||||||||||||
Comparison groups |
LEO 43204 0.037% Gel - Treatment Period Including Follow-up v Vehicle Gel - Treatment Period Including Follow-up
|
||||||||||||
Number of subjects included in analysis |
310
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
P-value |
< 0.001 | ||||||||||||
Method |
Mantel-Haenszel | ||||||||||||
Parameter type |
Ratio of clearance rates | ||||||||||||
Point estimate |
7.59
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
3.7 | ||||||||||||
upper limit |
15.61 |
|
|||||||||||||
End point title |
Percent Reduction in AK Count in the Treatment Area Compared to Baseline | ||||||||||||
End point description |
The number of clinically visible Actinic keratosis lesions (AKs) identified in the treatment area was recorded at Day 1, Weeks 4, and Week 8.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
At Week 8
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Statistical Analysis 1 | ||||||||||||
Statistical analysis description |
The p-values for secondary endpoints have been corrected by the Holm-Bonferroni method to account for multiplicity. The prespecified multiplicity adjustment by the Holm-Bonferroni method requires the ordering of the p-values for the secondary endpoints by size.
|
||||||||||||
Comparison groups |
LEO 43204 0.037% Gel - Treatment Period Including Follow-up v Vehicle Gel - Treatment Period Including Follow-up
|
||||||||||||
Number of subjects included in analysis |
310
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
P-value |
< 0.001 | ||||||||||||
Method |
Mantel-Haenszel | ||||||||||||
Parameter type |
Week 8 AK count ratio | ||||||||||||
Point estimate |
0.3
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
0.25 | ||||||||||||
upper limit |
0.36 |
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Adverse events information
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Timeframe for reporting adverse events |
Treatment period including follow-up (from Day 1 to Week 8) and extended follow-up (from Week 8 up to Month 14)
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Adverse event reporting additional description |
Adverse events presented in the table are investigator-reported terms. Adverse events of special interest within system organ class (SOC) Neoplasm benign, malignant and unspecified (incl cysts and polyps), were adjudicated by an Independent Adjudication Committee based on central biopsy review.
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Assessment type |
Non-systematic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary name |
MedDRA | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
18.1
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting groups
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
LEO 43204 0.037% Gel
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group description |
Treatment once daily with LEO 43204 0.037% gel for 3 consecutive days applied on the scalp. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Vehicle Gel
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group description |
Treatment with vehicle gel once daily for 3 days | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
LEO 43204 0.037% Gel - Extended Follow-up
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group description |
Treatment once daily with LEO 43204 0.037% gel for 3 consecutive days applied on the scalp. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Vehicle Gel - Extended Follow-up
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group description |
Treatment once daily for 3 days Vehicle gel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Frequency threshold for reporting non-serious adverse events: 2% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|
|||
Substantial protocol amendments (globally) |
|||
Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
||
04 Mar 2016 |
The amendment clarified which medications were allowed and prohibited during the extended follow-up period: lesiondirected laser treatment was added to the allowed medications, and Actikerall, even as lesiondirected treatment, and laser treatment as field treatment were prohibited. The remaining changes in the amendment were either administrative changes or matters that needed further clarification. |
||
Interruptions (globally) |
|||
Were there any global interruptions to the trial? No | |||
Limitations and caveats |
|||
Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
None reported |