Efficacy of different photoprotection strategies in preventing actinic keratosis recurrence after photodynamic therapy

ISRCTN ISRCTN16168548
DOI https://doi.org/10.1186/ISRCTN16168548
Protocol serial number ACTX-01-2017
Sponsor Cantabria Labs Difa Cooper
Funder Cantabria Labs Difa Cooper
Submission date
07/05/2018
Registration date
21/05/2018
Last edited
28/04/2020
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

Plain English summary of protocol

Background and study aims
Actinic keratosis (AK) is a common pre-cancer (with increased risk of developing into cancer) skin change that is caused by due to sun exposure over many years with no sun protection. AK appears as patches of thick, scaly, or crusty skin that feel rough or dry. Several treatments are available for this skin condition. Photodynamic therapy (PDT) using a photosensitizer (a drug that is activated only in the areas of AK using a special type of light), can cure AK patches. After PDT has cleared the AK, patients must protect their skin from the sun to prevent AK coming back. In this study (called ATHENA), we want to test a cream containing sunscreen and piroxicam (a drug that can reduce the risk of skin cancer) in comparison to standard sunscreen-only products in preventing AK coming back after PDT.

Who can participate?
Adults who have at least 6 patches of AK on their scalp or face.

What does the study involve?
All patients will be treated with PDT. They will be randomly allocated to apply to either sunscreen alone or sunscreen containing piroxicam to the affected area twice daily for 6 days.

What are the possible benefits and risks of participating?
If the piroxicam-containing sunscreen is more effective than sunscreen alone in preventing AK coming back, then the participants in this group will benefit from a reduced need for PDT, which can be time-consuming and painful. The standard prevention is to use sunscreen, so participants in the sunscreen-only group will not receive worse treatment than if they were not in the study. There is no increased risk of side effects for the sunscreen containing piroxicam.

Where is the study run from?
Erba-Rinaldi Hospital and DermoLaser Office Verona.

When is the study starting and how long is it expected to run for?
March 2017 to April 2018

Who is funding the study?
The study is funded by Cantabria Labs Difa Cooper, the company that makes the sunscreen containing piroxicam.

Who is the main contact?
Dr Massimo Milani, massimo.milani@difacooper.com

Contact information

Dr Massimo Milani
Public

Via Milano 160
Caronno Pertusella
21042
Italy

ORCiD logoORCID ID 0000-0001-7559-1202
Phone +39029659031
Email massimo.milani@difacooper.com

Study information

Primary study designInterventional
Study designPragmatic randomized open-label assessor-masked trial
Secondary study designRandomised parallel trial
Study type Participant information sheet
Scientific titleThe ATHENA Trial: Actixicam after photo-dynamic therapy for multiple actinic keratosis lesions. A randomized open-label assessor-masked outcome evaluation superiority trial vs. standard care in actinic keratosis subjects after phtotodynamic therapies
Study acronymATHENA
Study objectivesAfter photodynamic therapy (PDT) for multiple actinic keratosis (AK), lesion photoprotection strategies (i.e. use of sunscreen) is mandatory in order to reduce actinic damage and recurrence of new lesions. Recurrence of new AK lesions after PDT are common after 6-9 months after PDT. A sunscreen cream (SPF50+) containing piroxicam 0.8% has shown to be effective in reducing AK lesions as a monotherapy. There are no data comparing different photoprotection strategies (i.e sunscreen only, sunscreen with photolyase etc) comparing the efficacy in reducing AK recurrence after PDT. In this study, we wanted to assess if the use of SPF50+ and piroxicam cream could be more effective than standard photoprotection in reducing recurrence of AK after successful PDT.
Ethics approval(s)IRB Dermolaser Clinic, Verona, Italy, 15/01/2017, RS: 01-DLC-17
Health condition(s) or problem(s) studiedActinic keratosis recurrence after photodynamic therapy
InterventionRandomization was performed using a randomization list with an allocation ratio of 1:1.
Actixicam: sunscreen SPF50+ and piroxicam 0.8% cream formulation, applied twice daily 0.5 g (1 finger tip unit) per application for 6 consecutive days after successful PDT
Sunscreen: sunscreen cream (SPF50+ or SPF100+ and photolyase) applied twice daily 0.5 g (1 finger tip unit) per application for 6 consecutive days after successful PDT
Intervention typeDrug
Phase
Drug / device / biological / vaccine name(s)Piroxicam
Primary outcome measure(s)

Clinical count (assessor masked for allocation treatments) of actinic keratosis lesions 6 months after last PDT session

Key secondary outcome measure(s)

Local tolerability (patient’s self-reported complaints e.g. burning, itching etc) will be evaluated at visit 2 (1 month after baseline visit), at visit 2 (3 months after baseline) and at visit 3 (6 months after baseline)

Completion date25/04/2018

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexAll
Target sample size at registration64
Total final enrolment68
Key inclusion criteria1. At least 6 AK lesions (scalp or face) suitable for PDT treatment
2. Aged >18 years
3. Willing to participate in the trial (giving written informed consent)
Key exclusion criteria1. Other acute skin diseases other than AK
2. Known allergy to one of the components of products used in the trial
Date of first enrolment01/03/2017
Date of final enrolment30/09/2017

Locations

Countries of recruitment

  • Italy

Study participating centres

Erba-Rinaldi Hospital
Dermatology Unit
Erba-Rinaldi Hospital
Via Casartelli Menaggio
Menaggio
20126
Italy
DermoLaser Office Verona
Piazza Cittadella
Verona
10090
Italy

Results and Publications

Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
IPD sharing planThe datasets generated and/or analysed during the current study during this study will be included in the subsequent results publication.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/01/2019 28/04/2020 Yes No
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes

Editorial Notes

28/04/2020: The following changes were made to the trial record:
1. Publication reference added.
2. The total final enrolment was added.