Title

Phase 3b Study of Metvix NDL-PDT Versus Metvix c-PDT in Subjects With Actinic Keratoses
Multi-centre, Randomized, Investigator-blind, Intra-individual Active and Vehicle-controlled Study, Comparing Metvix Natural Daylight Photodynamic Therapy Versus Metvix Conventional Photodynamic Therapy in Subjects With Actinic Keratosis
  • Phase

    Phase 3
  • Study Type

    Interventional
  • Study Participants

    131
This study was to be conducted as a multi-centre, randomized, investigator-blinded, active and vehicle-controlled, intra-individual (split-face/scalp) non-inferiority (regarding efficacy) and superiority (regarding pain) study.

The primary purpose of this study is to demonstrate the non-inferiority of NDL-PDT compared to c-PDT in terms of lesion complete response rate.
Study Started
Jul 31
2013
Primary Completion
Jan 31
2014
Study Completion
Mar 31
2014
Results Posted
Dec 10
2020
Last Update
Feb 18
2021

Drug NDL-PDT

Metvix natural daylight photodynamic therapy

  • Other names: Metvix NDL-PDT

Drug c-PDT

Metvix conventional photodynamic therapy

  • Other names: Metvix c-PDT

Drug placebo c-PDT

Metvix placebo conventional photodynamic therapy

  • Other names: Metvix placebo c-PDT

NDL-PDT/c-PDT Experimental

Metvix natural daylight photodynamic therapy and Metvix conventional photodynamic therapy

NDL-PDT/placebo c-PDT Experimental

Metvix natural daylight photodynamic therapy and Metvix-placebo conventional photodynamic therapy

Criteria

Inclusion Criteria:

Clinical diagnosis of mild (Grade 1) and/or moderate (Grade 2) AKs on the face or the scalp on treated areas
Subject with two symmetrical treated areas half scalps or two half faces excluding ears, chin, bridge of the nose, eyelids and lips inside the vermillion border): no more than a twofold difference in terms of total number of lesions between the two TAs

Exclusion Criteria:

Subject with clinical diagnosis of at least one severe (Grade 3) AK on treated areas
Subject with pigmented AK on the treated areas
Immuno-compromised Subject for idiopathic, disease specific or therapeutic reasons
Subject with porphyria,

Summary

NDL-PDT

c-PDT

Placebo c-PDT

Unspecific Treated Side

All Events

Event Type Organ System Event Term NDL-PDT c-PDT Placebo c-PDT Unspecific Treated Side

Percentage (%) Change From Baseline in Total Lesion Complete Response at Week 12 in Group 1

The lesion complete response rate was defined as the percentage of pre-existing and treated lesions at Baseline that were assessed as clear (complete disappearance of the lesion, visually and by palpation) at Week 12. New lesions or the lesions in non-complete response were not not considered in the lesion response assessment. This outcome measure was analyzed as an intra-individual comparison between Metvix NDL-PDT on one side of the face/scalp and Metvix vehicle cream (placebo) c-PDT on the contralateral side (Group I).

Group I: Metvix NDL-PDT

68.4
percentage change from baseline (Mean)
Standard Deviation: 27.7

Group I: Metvix c-PDT

71.5
percentage change from baseline (Mean)
Standard Deviation: 27.6

Total

131
Participants

Duration of AK (years)

9.15
years (Mean)
Standard Deviation: 7.78

Age, Categorical

Phototype

Race

Sex: Female, Male

Overall Study

Group 1

Group 2

Drop/Withdrawal Reasons

Group 1