Title

Photodynamic Therapy (PDT) With Methyl Aminolevulinate (MAL) Cream in Patients With Skin Type V or IV With Acne Vulgaris
A Blinded, Randomized, Intra-individual, Vehicle-controlled and Multi-centre Study of Photodynamic Therapy With MAL Cream in Patients With Skin Type V or VI With Acne Vulgaris
  • Phase

    Phase 2
  • Study Type

    Interventional
  • Study Participants

    20
In this multicenter study, patients with dark skin and acne vulgaris will be included. The patients will receive treatment with MAL PDT and placebo PDT.
The treatment period started within 2 weeks of the study screen. Patients received two treatments (MAL PDT and vehicle PDT) to each of the treatment areas, 2 weeks apart, and were followed-up 4 weeks after last treatment. The total duration of the study was 6-8 weeks.

Methyl aminolevulinate 80 mg/g cream (MAL cream 8%)and vehicle was applied for 1.5 hours before illumination (Aktilite® CL128), total light dose 37 J/cm2
Study Started
May 31
2008
Primary Completion
Dec 31
2008
Study Completion
Dec 31
2008
Results Posted
Jul 12
2013
Estimate
Last Update
Jul 12
2013
Estimate

Drug Methyl aminolevulinate (MAL) PDT

Cream application followed by illumination with red light

1 Experimental

PDT using MAL crem

2 Placebo Comparator

PDT using Placebo cream

Criteria

Inclusion Criteria:

Female and male patients, age 15 to 40 years with acne vulgaris.
Patients with skin type V or VI (Fitzpatrick).
Patients with two areas of each 8x8 cm2 on the back that include at least 5 inflammatory lesions (papules, pustules, and nodules) each. The minimum distance between the two areas should be at least 4 cm.
Patients with no more than 2 nodular lesions in any of the two areas of each 8x8 cm2 on the back.
Patients who are surgically sterile, postmenopausal, abstinent, or willing to use an adequate means of contraception including birth control pills, or barrier methods and spermicide for at least 14 days prior to Day 0. Patients using birth control pills must have used the same product and dose for at least 3 months and must agree to stay with the same product and dose for an additional 3 months.
Patients must be willing and capable of following study instructions to the extent and degree required by the protocol.
Patients must sign the approved informed consent form prior to any study procedures.
Patients must be willing to be photographed. Patients must be willing to sign a photography consent form.

Exclusion Criteria:

Known allergy to MAL, to a similar PDT compound, or to excipients of the cream.
Participation in other clinical studies either concurrently or within the last 30 days.
Patients who have a condition or who are in a situation, which, in the investigator's opinion, may put the patient at risk, may confound the study results, or may interfere with the patient's participation in the study.
Clinically significant sensitivity to visible light, or has porphyria or porphyrin sensitivity.
Exposure to ultraviolet radiation (UVB phototherapy) within the last 30 days.
Patients with a washout period for topical treatments for their acne in the two treatment areas of less than 14 days. Any topical treatment on the face or other areas outside the two treatment areas will be allowed.
Patients with a washout period for oral antibiotics for treatment of their acne of less than 1 month.
Patients with a washout period for oral isotretinoin of less than 6 months.

Summary

Visonac Cream With PDT

Vehicle Cream With PDT

All Events

Event Type Organ System Event Term Visonac Cream With PDT Vehicle Cream With PDT

Proportion of Patients With Moderate to Severe Hypopigmentation and Hyperpigmentation Assessed After Treatment

Visonac Cream With PDT

Vehicle Cream With PDT

Erythema Score (Mild and Moderate)Immediately After First PDT

Patients with mild or moderate erythema after first treatment at baseline.

Vehicle Cream With PDT

Visonac Cream With PDT

10.5
percentage of participants

Change in Inflammatory Lesion Counts From Baseline

Visonac Cream With PDT

-3.7
lesion count (Mean)
Standard Deviation: 2.43

Vehicle Cream With PDT

-3.9
lesion count (Mean)
Standard Deviation: 2.07

Change in Noninflammatory Lesion Counts From Baseline

Vehicle Cream With PDT

-2.5
lesion count (Mean)
Standard Deviation: 2.65

Visonac Cream With PDT

-2.95
lesion count (Mean)
Standard Deviation: 4.84

Erythema Score (Mild and Moderate)Immediately After Second Treatment

Patients with mild or moderate erythema after second treatment.

Visonac Cream With PDT

11.1
percentage of participants

Vehicle Cream With PDT

Erythema Score (Mild and Moderate)1 Day After First Treatment

Patients with mild or moderate erythema 1 day after first treatment.

Visonac Cream With PDT

Vehicle Cream With PDT

Age, Categorical

Inflammatory lesions

Inflammatory lesions

Non inflammatory lesions

Non inflammatory lesions

Region of Enrollment

Sex: Female, Male

Skin type

Overall Study

Visonac Cream With PDT and Vehicle and PDT

Drop/Withdrawal Reasons

Visonac Cream With PDT and Vehicle and PDT