Official Title

A Randomized, Double-blinded Placebo-controlled Study to Investigate Antimicrobial Efficacy and Safety Following Topical Application of DPK-060
  • Phase

    Phase 1/Phase 2
  • Study Type

    Interventional
  • Intervention/Treatment

    dpk-060 ...
  • Study Participants

    41
The primary objective of this study was to evaluate microbial density in eczematous lesions during two weeks of twice daily therapy with the investigational product, DPK-060 1% ointment, compared with placebo in patients with atopic dermatitis. This randomized, double-blind, placebo-controlled part of the study was preceded with an open-label investigation in a small group of patients (n=5) treated with two applications of DPK-060 1% ointment per day for four days to assess safety, local tolerability and systemic absorption of DPK-060.

The secondary objectives were to evaluate severity of eczema and pruritus, to assess the tolerability and safety of the treatment and to assess the degree of systemic absorption of DPK-060 in blood on Day 7 and Day 21 in a sub-set of 10 patients.
Study Started
Mar 31
2008
Primary Completion
Apr 30
2009
Study Completion
Apr 30
2009
Results Posted
Dec 05
2018
Last Update
Dec 05
2018

Drug DPK-060 1% ointment

DPK-060 1% ointment applied to the skin, two applications per day using approximately 3 mg ointment per cm2

Drug Placebo for DPK-060 ointment

Placebo for DPK-060 ointment applied to the skin, two applications per day using approximately 3 mg ointment per cm2

Placebo for DPK-060 ointment Placebo Comparator

DPK-060 1% ointment Experimental

Criteria

Inclusion Criteria:

A clinical diagnosis of atopic dermatitis
Treatable eczematous lesions of a total area of at least 25 cm2 (100 cm2 for the initial five patients)
Female patients of childbearing potential had to be using an appropriate method of contraception.
Female patients of childbearing potential were not eligible before PK data from the first 10 patients had been evaluated and the Medical Products Agency (Swedish regulatory agency) had given approval to include women of childbearing potential.

Exclusion Criteria:

Significant clinical illness, within the two weeks prior to first dose, which could affect the outcome of the study
Previous local or systemic antimicrobial therapy within the last four weeks prior to the first application of the investigational product (DPK-060 1% or placebo ointment)
Existence of any surgical or medical condition which, in the judgment of the investigator, might interfere with the absorption, distribution, metabolism or excretion of the drug
Patients who had had systemic treatment for atopic dermatitis or other topical or transdermal treatments (such as nicotine, hormone replacement therapies)on the site of eczema within 14 days prior to first application of DPK-060 1% or placebo ointment and/or topical treatment with tar, any corticosteroid,topical immunomodulators or oral treatment with any corticosteroids within 14 days prior to first application and/or oral antihistamines within 14 days of the first dose.
A need for any other medication during the period 0 to 7 days before entry to the study, (excluding the oral contraceptive pill for females) except those deemed by the principal investigator / clinical investigator not to interfere with the outcome of the study
Diagnosis of other skin diseases, which in the opinion of the investigator, were likely to adversely affect the outcome of the study
History or evidence of significant cardiac, renal, hepatic or endocrine disease
Significant hypersensitivity or allergy, as judged by the investigator
Immunocompromised patients
Lice or scabies
Tinea corporis
Hypersensitivity to the ingredients of the vehicle
The presence of prominent tattoos at sites of application of DPK-060 1% or placebo ointment
Donation of blood, exceeding 450 mL, during the three months prior to first dose
Participation in a clinical study during the 12 weeks prior to first dose
Ongoing alcohol or drug abuse
Positive pregnancy test or lactation

Summary

Placebo for DPK-060 Ointment

DPK-060 1% Ointment

All Events

Event Type Organ System Event Term Placebo for DPK-060 Ointment DPK-060 1% Ointment

Percent Change From Baseline in Total Microbial Colony Forming Units (CFU) Count at Day 14 Full Analysis Set

The total microbial colony forming units count is the number of CFU/cm2 for total microbial count in eczematous lesions.

Placebo for DPK-060 Ointment

-94.0
Percent change (Median)
Full Range: -100.0 to 19483.0

DPK-060 1% Ointment

-100.0
Percent change (Median)
Full Range: -100.0 to 40926.0

Percent Change From Baseline in Total Microbial Colony Forming Units (CFU) Count at Day 14 Per Protocol Analysis Set

The total microbial colony forming units count is the number of CFU/cm2 for total microbial count in eczematous lesions.

Placebo for DPK-060 Ointment

-90.0
Percent change (Median)
Full Range: -100.0 to 19483.0

DPK-060 1% Ointment

-100.0
Percent change (Median)
Full Range: -100.0 to -52.0

Percent Change From Baseline in Total Microbial Colony Forming Units (CFU) Count at Day 7 and 21 Per Protocol Analysis Set

The total microbial colony forming units count is the number of CFU/cm2 for total microbial count in eczematous lesions.

Placebo for DPK-060 Ointment

Day 21

20.0
Percent change (Median)
Full Range: -99.0 to 294067.0

Day 7

-73.0
Percent change (Median)
Full Range: -100.0 to 73429.0

DPK-060 1% Ointment

Day 21

-49.0
Percent change (Median)
Full Range: -100.0 to 14344.0

Day 7

-96.0
Percent change (Median)
Full Range: -100.0 to 563.0

Percent Change From Baseline in S.Aureus CFU Count at Day 7, 14 and 21 Full Analysis Set

The S.Aureus CFU count is the number of CFU/cm2 for S.Aureus count in eczematous lesions.

Placebo for DPK-060 Ointment

Day 14

-91.0
Percent change (Median)
Full Range: -100.0 to 1665.0

Day 21

24.0
Percent change (Median)
Full Range: -100.0 to 21900.0

Day 7

-50.0
Percent change (Median)
Full Range: -100.0 to 73429.0

DPK-060 1% Ointment

Day 14

-100.0
Percent change (Median)
Full Range: -100.0 to 799900.0

Day 21

-2.0
Percent change (Median)
Full Range: -100.0 to 799900.0

Day 7

-100.0
Percent change (Median)
Full Range: -100.0 to 799900.0

Percent Change From Baseline in S.Aureus CFU Count at Day 7, 14 and 21 Per Protocol Analysis Set

The S.Aureus CFU count is the number of CFU/cm2 for S.Aureus count in eczematous lesions.

Placebo for DPK-060 Ointment

Day 14

-91.0
Percent change (Median)
Full Range: -100.0 to 1665.0

Day 21

24.0
Percent change (Median)
Full Range: -100.0 to 21900.0

Day 7

-60.0
Percent change (Median)
Full Range: -100.0 to 73429.0

DPK-060 1% Ointment

Day 14

-100.0
Percent change (Median)
Full Range: -100.0 to -77.0

Day 21

-36.0
Percent change (Median)
Full Range: -100.0 to 3614.0

Day 7

-100.0
Percent change (Median)
Full Range: -100.0 to 546.0

Percent Change From Baseline in KNS CFU Count at Day 7, 14 and 21 Full Analysis Set

The KNS CFU count is the number of CFU/cm2 for coagulase-negative staphylococcus count in eczematous lesions.

Placebo for DPK-060 Ointment

Day 14

-95.0
Percent change (Median)
Full Range: -100.0 to 233.0

Day 21

-82.0
Percent change (Median)
Full Range: -100.0 to 1694.0

Day 7

-99.0
Percent change (Median)
Full Range: -100.0 to 93.0

DPK-060 1% Ointment

Day 14

-100.0
Percent change (Median)
Full Range: -100.0 to -52.0

Day 21

-78.0
Percent change (Median)
Full Range: -100.0 to 6844.0

Day 7

-100.0
Percent change (Median)
Full Range: -100.0 to 353.0

Percent Change From Baseline in KNS CFU Count at Day 7, 14 and 21 Per Protocol Analysis Set

The KNS CFU count is the number of CFU/cm2 for coagulase-negative staphylococcus count in eczematous lesions.

Placebo for DPK-060 Ointment

Day 14

-93.0
Percent change (Median)
Full Range: -100.0 to 233.0

Day 21

-82.0
Percent change (Median)
Full Range: -100.0 to 1694.0

Day 7

-99.0
Percent change (Median)
Full Range: -100.0 to 93.0

DPK-060 1% Ointment

Day 14

-100.0
Percent change (Median)
Full Range: -100.0 to -52.0

Day 21

-73.0
Percent change (Median)
Full Range: -100.0 to 6844.0

Day 7

-98.0
Percent change (Median)
Full Range: -100.0 to 353.0

Percent Change From Baseline in Gram-positive Bacteria CFU Count at Day 7, 14 and 21 Full Analysis Set

The gram-positive CFU count is the number of CFU/cm2 for gram-positive bacteria count in eczematous lesions.

Placebo for DPK-060 Ointment

Day 14

-94.0
Percent change (Median)
Full Range: -100.0 to 19483.0

Day 21

14.0
Percent change (Median)
Full Range: -99.0 to 291567.0

Day 7

-73.0
Percent change (Median)
Full Range: -100.0 to 73429.0

DPK-060 1% Ointment

Day 14

-100.0
Percent change (Median)
Full Range: -100.0 to 40926.0

Day 21

-37.0
Percent change (Median)
Full Range: -100.0 to 40926.0

Day 7

-98.0
Percent change (Median)
Full Range: -100.0 to 40926.0

Percent Change From Baseline in Gram-positive Bacteria CFU Count at Day 7, 14 and 21 Per Protocol Analysis Set

The gram-positive bacteria CFU count is the number of CFU/cm2 for gram-positive bacteria count in eczematous lesions.

Placebo for DPK-060 Ointment

Day 14

-90.0
Percent change (Median)
Full Range: -100.0 to 19483.0

Day 21

20.0
Percent change (Median)
Full Range: -99.0 to 291567.0

Day 7

-73.0
Percent change (Median)
Full Range: -100.0 to 73429.0

DPK-060 1% Ointment

Day 14

-100.0
Percent change (Median)
Full Range: -100.0 to -52.0

Day 21

-49.0
Percent change (Median)
Full Range: -100.0 to 14344.0

Day 7

-96.0
Percent change (Median)
Full Range: -100.0 to 563.0

Change in Total Treated Eczema Area Full Analysis Set

Change from baseline (Day 1 morning) in total treated eczema area measured in cm2.

Placebo for DPK-060 Ointment

Day 14

-15.0
cm2 (Mean)
Standard Deviation: 42.9

Day 21

17.4
cm2 (Mean)
Standard Deviation: 78.7

Day 7

12.0
cm2 (Mean)
Standard Deviation: 32.8

DPK-060 1% Ointment

Day 14

14.1
cm2 (Mean)
Standard Deviation: 82.7

Day 21

5.8
cm2 (Mean)
Standard Deviation: 60.8

Day 7

32.3
cm2 (Mean)
Standard Deviation: 92.2

Change in Area of Microbial Counting Site Full Analysis Set

Change from baseline (Day 1 morning) in area of microbial counting site measured in cm2.

Placebo for DPK-060 Ointment

Day 14

-16.3
cm2 (Mean)
Standard Deviation: 32.2

Day 21

8.9
cm2 (Mean)
Standard Deviation: 66.0

Day 7

12.1
cm2 (Mean)
Standard Deviation: 25.5

DPK-060 1% Ointment

Day 14

4.2
cm2 (Mean)
Standard Deviation: 49.1

Day 21

7.6
cm2 (Mean)
Standard Deviation: 62.3

Day 7

20.1
cm2 (Mean)
Standard Deviation: 68.0

Change in Area of Microbial Counting Site Per Protocol Analysis Set

Change from baseline (Day 1 morning) in area of microbial counting site measured in cm2.

Placebo for DPK-060 Ointment

Day 14

-18.2
cm2 (Mean)
Standard Deviation: 33.4

Day 21

9.8
cm2 (Mean)
Standard Deviation: 69.7

Day 7

13.3
cm2 (Mean)
Standard Deviation: 26.7

DPK-060 1% Ointment

Day 14

-1.5
cm2 (Mean)
Standard Deviation: 42.8

Day 21

2.2
cm2 (Mean)
Standard Deviation: 58.5

Day 7

15.3
cm2 (Mean)
Standard Deviation: 66.0

Erythema Eczema Area and Severity Index (EASI) Full Analysis Set

Evaluation of erythema on a scale 0-3 where 0=No symptoms, 1=Slight, 2=Moderate, 3=Severe

Placebo for DPK-060 Ointment

Day 14

Day 21

Day 7

DPK-060 1% Ointment

Day 14

Day 21

Day 7

Erythema Eczema Area and Severity Index (EASI) Per Protocol Analysis Set

Evaluation of erythema on a scale 0-3 where 0=No symptoms, 1=Slight, 2=Moderate, 3=Severe

Placebo for DPK-060 Ointment

Day 14

Day 21

Day 7

DPK-060 1% Ointment

Day 14

Day 21

Day 7

Excoriations Eczema Area and Severity Index (EASI) Full Analysis Set

Evaluation of excoriations on a scale 0-3 where 0=No symptoms, 1=Slight, 2=Moderate, 3=Severe

Placebo for DPK-060 Ointment

Day 14

Day 21

Day 7

DPK-060 1% Ointment

Day 14

Day 21

Day 7

Excoriations Eczema Area and Severity Index (EASI) Per Protocol Analysis Set

Evaluation of excoriations on a scale 0-3 where 0=No symptoms, 1=Slight, 2=Moderate, 3=Severe

Placebo for DPK-060 Ointment

Day 14

Day 21

Day 7

DPK-060 1% Ointment

Day 14

Day 21

Day 7

Infiltration Eczema Area and Severity Index (EASI) Full Analysis Set

Evaluation of infiltration on a scale 0-3 where 0=No symptoms, 1=Slight, 2=Moderate, 3=Severe

Placebo for DPK-060 Ointment

Day 14

Day 21

Day 7

DPK-060 1% Ointment

Day 14

Day 21

Day 7

Infiltration Eczema Area and Severity Index (EASI) Per Protocol Analysis Set

Evaluation of infiltration on a scale 0-3 where 0=No symptoms, 1=Slight, 2=Moderate, 3=Severe

Placebo for DPK-060 Ointment

Day 14

Day 21

Day 7

DPK-060 1% Ointment

Day 14

Day 21

Day 7

Lichenification Eczema Area and Severity Index (EASI) Full Analysis Set

Evaluation of lichenification on a scale 0-3 where 0=No symptoms, 1=Slight, 2=Moderate, 3=Severe

Placebo for DPK-060 Ointment

Day 14

Day 21

Day 7

DPK-060 1% Ointment

Day 14

Day 21

Day 7

Lichenification Eczema Area and Severity Index (EASI) Per Protocol Analysis Set

Evaluation of lichenification on a scale 0-3 where 0=No symptoms, 1=Slight, 2=Moderate, 3=Severe

Placebo for DPK-060 Ointment

Day 14

Day 21

Day 7

DPK-060 1% Ointment

Day 14

Day 21

Day 7

Investigator's Global Assessment of Eczema Change Full Analysis Set

Investigator's global assessment of eczema status since previous dose application on a categorical scale (worse, unchanged, improved)

Placebo for DPK-060 Ointment

Day 14

Day 21

Day 7

DPK-060 1% Ointment

Day 14

Day 21

Day 7

Investigator's Global Assessment of Eczema Change Per Protocol Analysis Set

Investigator's global assessment of eczema status since previous dose application on a categorical scale (worse, unchanged, improved)

Placebo for DPK-060 Ointment

Day 14

Day 21

Day 7

DPK-060 1% Ointment

Day 14

Day 21

Day 7

Change From Baseline in Visual Analog Scale of Itching (VASI) Full Analysis Set

The Visual Analog Scale of Itching (VASI), is the patient's assessment of itching on a 0-100 mm scale. 0 mm corresponds to no itching and 100 mm corresponds to maximum itching. Change from baseline is the change from day 1 morning.

Placebo for DPK-060 Ointment

Day 14

-15.34
mm (Mean)
Standard Deviation: 21.28

Day 21

-4.34
mm (Mean)
Standard Deviation: 28.66

Day 7

-11.19
mm (Mean)
Standard Deviation: 26.19

DPK-060 1% Ointment

Day 14

-10.6
mm (Mean)
Standard Deviation: 25.97

Day 21

-13.41
mm (Mean)
Standard Deviation: 27.72

Day 7

-15.19
mm (Mean)
Standard Deviation: 27.23

Change From Baseline in Visual Analog Scale of Itching (VASI) Per Protocol Analysis Set

The Visual Analog Scale of Itching (VASI), is the patient's assessment of itching on a 0-100 mm scale. 0 mm corresponds to no itching and 100 mm corresponds to maximum itching. Change from baseline is the change from day 1 morning.

Placebo for DPK-060 Ointment

Day 14

-16.91
mm (Mean)
Standard Deviation: 24.25

Day 21

-2.24
mm (Mean)
Standard Deviation: 29.44

Day 7

-11.32
mm (Mean)
Standard Deviation: 26.90

DPK-060 1% Ointment

Day 14

-14.92
mm (Mean)
Standard Deviation: 18.37

Day 21

-12.89
mm (Mean)
Standard Deviation: 28.34

Day 7

-20.48
mm (Mean)
Standard Deviation: 18.72

Patient's Global Assessment of Eczema Change Full Analysis Set

Patient's global assessment of eczema status since previous dose application on a categorical scale (worse, unchanged, improved)

Placebo for DPK-060 Ointment

Day 14 morning

Day 21

Day 7

DPK-060 1% Ointment

Day 14 morning

Day 21

Day 7

Change in Total Treated Eczema Area Per Protocol Analysis Set

Change from baseline (Day 1 morning) in total treated eczema area measured in cm2.

Placebo for DPK-060 Ointment

Day 14

-16.0
cm2 (Mean)
Standard Deviation: 44.9

Day 21

21.1
cm2 (Mean)
Standard Deviation: 82.4

Day 7

12.1
cm2 (Mean)
Standard Deviation: 33.7

DPK-060 1% Ointment

Day 14

-1.2
cm2 (Mean)
Standard Deviation: 45.4

Day 21

2.4
cm2 (Mean)
Standard Deviation: 60.3

Day 7

18.0
cm2 (Mean)
Standard Deviation: 66.4

Patient's Global Assessment of Eczema Change Per Protocol Analysis Set

Patient's global assessment of eczema status since previous dose application on a categorical scale (worse, unchanged, improved)

Placebo for DPK-060 Ointment

Day 14 morning

Day 21

Day 7

DPK-060 1% Ointment

Day 14 morning

Day 21

Day 7

Percent Change From Baseline in Total Microbial Colony Forming Units (CFU) Count at Day 7 and 21 Full Analysis Set

The total microbial colony forming units count is the number of CFU/cm2 for total microbial count in eczematous lesions.

Placebo for DPK-060 Ointment

Day 21

14.0
Percent change (Median)
Full Range: -99.0 to 294067.0

Day 7

-73.0
Percent change (Median)
Full Range: -100.0 to 73429.0

DPK-060 1% Ointment

Day 21

-37.0
Percent change (Median)
Full Range: -100.0 to 40926.0

Day 7

-98.0
Percent change (Median)
Full Range: -100.0 to 40926.0

Total

41
Participants

Age, Continuous

32.5
years (Mean)
Standard Deviation: 13.9

Age, Categorical

Region of Enrollment

Sex: Female, Male

Overall Study

Placebo for DPK-060 Ointment

DPK-060 1% Ointment