| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated |  | 
| MedDRA Classification | 
| E.1.3 | Condition being studied is a rare disease | No | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial | 
| To compare the patient complete response rate of Metvix® PDT to that of vehicle PDT 3 months after last treatment in patients with multiple AK lesions on the face and/or scalp. 
 |  | 
| E.2.2 | Secondary objectives of the trial | 
| - To compare local AEs (treatment site AEs) between Metvix® PDT and vehicle PDT. - To compare lesion complete response rate between Metvix® PDT and vehicle PDT 3 months after last treatment
 
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| E.2.3 | Trial contains a sub-study | Information not present in EudraCT | 
| E.3 | Principal inclusion criteria | 
| - Clinical diagnosis of 4-10 previously untreated, not pigmented, non-hyperkeratotic AK lesions of 3 mm or more diameter of Grade 1 and/or 2 (see Section 6.1) of the face and/or scalp where other therapies are unacceptable or considered medically less appropriate. - Males or females above 18 years of age.
 - Written informed consent.
 
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| E.4 | Principal exclusion criteria | 
| - Patients with porphyria. - Patients immunosuppressed for idiopathic, disease specific or therapeutic reasons.
 - Known allergy to methyl aminolevulinate, a similar PDT compound or excipients of the cream.
 - Patients with history of hypersensitivity to nut products or other known protein antigens.
 - Participation in other clinical studies either currently or within the last 30 days.
 - Patients receiving local treatment (including cryotherapy and curretage) in face / scalp area within the last 30 days.
 - Patients receiving topical treatment (including imiquimod, 5-FU and diclofenac) in face / scalp area within the last 3 months.
 - Pregnant or breast-feeding: All women of child-bearing potential must use adequate contraception (oral contraceptives, intrauterine device, contraceptive skin patch, etc) during the treatment period and one month thereafter. In addition, they must have a negative pregnancy test prior to treatment.
 - Any conditions that may be associated with a risk of poor protocol compliance.
 - Patients currently receiving regular ultraviolet radiation therapy.
 
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| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| The primary efficacy end-point will be patient complete response rate, determined by clinical assessment (visual inspection and palpation) 3 months after last treatment. A patient will be considered a complete responder if all treated lesions show complete clinical response, as assessed by visual inspection and palpation.
 
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| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis | No | 
| E.6.2 | Prophylaxis | No | 
| E.6.3 | Therapy | Yes | 
| E.6.4 | Safety | Yes | 
| E.6.5 | Efficacy | Yes | 
| E.6.6 | Pharmacokinetic | No | 
| E.6.7 | Pharmacodynamic | No | 
| E.6.8 | Bioequivalence | No | 
| E.6.9 | Dose response | No | 
| E.6.10 | Pharmacogenetic | Information not present in EudraCT | 
| E.6.11 | Pharmacogenomic | No | 
| E.6.12 | Pharmacoeconomic | No | 
| E.6.13 | Others | No | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) | No | 
| E.7.1.1 | First administration to humans | No | 
| E.7.1.2 | Bioequivalence study | No | 
| E.7.1.3 | Other | No | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) | No | 
| E.7.3 | Therapeutic confirmatory (Phase III) | Yes | 
| E.7.4 | Therapeutic use (Phase IV) | No | 
| E.8 Design of the trial | 
| E.8.1 | Controlled | Yes | 
| E.8.1.1 | Randomised | Yes | 
| E.8.1.2 | Open | No | 
| E.8.1.3 | Single blind | No | 
| E.8.1.4 | Double blind | Yes | 
| E.8.1.5 | Parallel group | Yes | 
| E.8.1.6 | Cross over | No | 
| E.8.1.7 | Other | No | 
| E.8.2 | Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) | No | 
| E.8.2.2 | Placebo | Yes | 
| E.8.2.3 | Other | No | 
| E.8.3 | The trial involves single site in the Member State concerned | No | 
| E.8.4 | The trial involves multiple sites in the Member State concerned | Yes | 
| E.8.5 | The trial involves multiple Member States | Yes | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA | No | 
| E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT | 
| E.8.7 | Trial has a data monitoring committee | Information not present in EudraCT | 
| E.8.8 | Definition of the end of the trial and justification where it is not the last
                        visit of the last subject undergoing the trial | 
| End of trial is at Follow-up visit 2, which will take place 12 weeks after the second treatment.
 
 see also protocol pages 17 and 30
 |  | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years |  | 
| E.8.9.1 | In the Member State concerned months | 8 | 
| E.8.9.1 | In the Member State concerned days |  | 
| E.8.9.2 | In all countries concerned by the trial months | 8 |