A study to determine the efficacy of a topically applied artemether gel in the treatment of senile warts.

ISRCTN ISRCTN12424904
DOI https://doi.org/10.1186/ISRCTN12424904
Secondary identifying numbers EPI-02
Submission date
13/02/2015
Registration date
25/02/2015
Last edited
15/06/2016
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Skin and Connective Tissue Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Senile warts are benign skin tumours. They are removed by invasive, unpleasant methods (curettage, cryotherapy, laser, surgery) with certain risks (e.g. infection, depigmentation). This clinical proof of concept study aims to assess the efficacy of an artemether topical formulation in the treatment of senile warts.

Who can participate?
Each participant must have at least 8 flat or slightly elevated senile warts.

What does the study involve?
The test product will be applied twice daily for up to 8 weeks. Five lesions per study participant will be treated with study medication and 3 will serve as reference lesions. The assessment of efficacy will be performed on the photographs taken at the beginning and the treatment and study end by applying a regression score and by measuring the longest axis of lesion.

What are the possible benefits and risks of participating?
The potential benefit for participants is a painless, non-invasive treatment leading to regression or clearance of seborrheic keratosis. Development of adverse events like pruritis, erythema are possible risks associated with the treatment.

Where is the study run from?
The study will be carried out in a dermatology clinic.

When is the study starting and how long is it expected to run for?
From February 2015 to July 2015.

Who is funding the study?
EpiPharm AG

Who is the main contact?
Dr Rosemarie Sift Carter

Contact information

Dr Rosemarie Sift Carter
Public

Hauptstrasse 67
Binningen
4102
Switzerland

Study information

Study designOpen-label intra-individual comparison proof-of-concept study
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Other
Study typeTreatment
Scientific titleSingle centre, open-label, intra-individual, comparison, proof of concept study to determine the efficacy of an artemether topical formulation in subjects with seborrheic keratosis
Study objectivesTreatment of seborrheic keratosis with artemether will lead to regression of the lesions compared to no treatment.
Ethics approval(s)Ethic Committee of North-Western and Central Switzerland, 17/01/2015, reference number: EKNZ 2014-390
Health condition(s) or problem(s) studiedSeborrheic keratosis
InterventionInterventions as of 15/06/2016:
A total of 8 lesions per subject are identified at visit 1 (day 1), 5 of them are allocated to artemether treatment and 3 serve as reference lesions. Artemether 3% is to be administered for a duration of 8 weeks twice daily (i.e. in the morning and evening). The study lesions will be assessed at baseline visit (day 1) and at treatment end and follow-up/study end visits (day 56 and day 85) based on the clinical appearance and the dermoscopic images taken. In addition, the lengths of lesions will be measured at the corresponding visits.

Original interventions:
Topical artemether formulation
Intervention typeDrug
Pharmaceutical study type(s)
PhasePhase II
Drug / device / biological / vaccine name(s)Artemether
Primary outcome measure1. Regression of lesions by assessing the lesions with a 6-point IGA (Investigator Global Assessment) Score at baseline, 56 and 85 days
2. Reduction of lesion size by measuring the longest axis (mm) of the lesion at baseline visit (V1) and at baseline, 56 and 85 days
Secondary outcome measurestherapy outcome, i.e. the IGA (investigator global assessment) score and lengths of treated lesions versus reference (not treated) lesions at 56 and 85 days.
Overall study start date02/02/2015
Completion date31/07/2015

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants15
Key inclusion criteria1. Age above 40 years old
2. Phototype II, III and IV
3. At least 8 flat or slightly elevated SK lesions with a “pasted-on” look and typical
characteristics
4. Lesion size: longest axis (dimension) 2 mm to 10mm
5. Willingness to participate in the study and to comply with the study protocol
6. Written informed consent
Key exclusion criteria1. Presence of pregnancy, lactation, childbearing potential without contraception
2. Female participants of childbearing potential not using and not willing to continue using a medically reliable method of contraception
4. SK lesion close to the eye or mucosa (mouth, genitals)
5. Lesion in a skin fold or an area where clothing (e.g. belt) may cause physical irritation
6. Pedunculated, verrucous, papilomatous and irritated lesions
7. Presence of clinically significant skin or systemic disease
8. Pathological findings at screening (melanoma, lentigo maligna, inflammation, bleeding)
9. Concomitant participation in another study
10. Traveling to regions with endemic malaria
11. Previous use of treatment of the lesions within 2 years prior to visit 1
12. Known or suspected non-compliance, drug or alcohol abuse
13. Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participant
14. Enrolment of the investigator, his/her family members, employees and other dependent persons
Date of first enrolment20/02/2015
Date of final enrolment30/03/2015

Locations

Countries of recruitment

  • Switzerland

Study participating centre

Somamedica AG
Zollikerstrasse 106
Zollikon
8702
Switzerland

Sponsor information

EpiPharm AG
Industry

Hauptstrasse 67
Binningen
4102
Switzerland

ROR logo "ROR" https://ror.org/040fx6j66

Funders

Funder type

Industry

EpiPharm AG

No information available

Results and Publications

Intention to publish date30/06/2017
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planPublication planned in a peer reviewed journal .
IPD sharing plan

Editorial Notes

15/06/2016: The timepoints of measurement for the primary and secondary outcome measures as well as the publication and dissemination plan have been added. In addition, the interventions section has been updated.
24/03/2016: Ethics approval information added.