| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated | 
| Pre-cancerous skin lesions |  | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 9.1 |  
| E.1.2 | Level | LLT |  
| E.1.2 | Classification code | 10000614 |  
| E.1.2 | Term | Actinic keratosis |  | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 9.1 |  
| E.1.2 | Level | LLT |  
| E.1.2 | Classification code | 10004146 |  
| E.1.2 | Term | Basal cell carcinoma |  | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 9.1 |  
| E.1.2 | Level | LLT |  
| E.1.2 | Classification code | 10041823 |  
| E.1.2 | Term | Squamous cell carcinoma |  | 
| 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 determine the effect of CUV1647 administered from slow release subcutaneous implants on the number of actinic keratoses (AKs) on the head, forearms and back of hands during a 24 month test period. |  | 
| E.2.2 | Secondary objectives of the trial | 
| - To determine and compare the proportion of patients in each group that develops one or more SCC during a 24 month test period. - To examine the effect of ongoing sun exposure on lesion formation and progression in this patient group.
 - To evaluate the safety and tolerability of multiple slow release subcutaneous implants of CUV1647.
 |  | 
| E.2.3 | Trial contains a sub-study | No | 
| E.3 | Principal inclusion criteria | 
| - Male and female organ transplant recipients with stable transplant function who received their transplant at least 2 years prior to study entry. - Organ tansplant patients who have had at least one biopsy-positive squamous cell carcinoma.
 - Aged 18-75 years.
 - Written informed consent prior to the performance of any study-specific procedures.
 |  | 
| E.4 | Principal exclusion criteria | 
| - Any allergy to CUV1647 or the polymer contained in the implant. - History of melanoma
 - Current pigmentary disorders such as melasma.
 - Diagnosed with HIV/AIDS, or Hepatitis B or C.
 - Current history of drug or alcohol abuse (in the last 1 year).
 - Clinically significant organ dysfunction, history of medical disorders or other factors (e.g. non-compliance history, allergic to local anaesthetics, faints when given injections or giving  blood) which in the opinion of the investigator will interfere with the interpretation of the study outcome measures.
 - Major medical or psychiatric illness.
 - Pregnancy as confirmed by positive serum ß-HCG pregnancy test prior to baseline or lactating mothers.
 - Females of child bearing potential (pre-menopausal, not surgically sterile) not using adequate contraceptive measures (i.e. oral contraceptives, diaphragm plus spermicide, intrauterine device).
 -Participation in a clinical trial of an investigational agent within 30 days prior to the screening visit.
 - use of regular medications or any other factor that may affect skin pigmentation.
 |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| Primary efficacy endpoint: -Number of AK lesions will be systematically mapped, counted and photographed.
 
 Primary safety endpoint:
 - Incidence of any toxicities as judged from Adverse Events.
 |  | 
| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis | No | 
| E.6.2 | Prophylaxis | Yes | 
| E.6.3 | Therapy | No | 
| 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 | No | 
| 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) | Yes | 
| E.7.3 | Therapeutic confirmatory (Phase III) | No | 
| 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.8.4.1 | Number of sites anticipated in Member State concerned | 1 | 
| E.8.5 | The trial involves multiple Member States | Yes | 
| E.8.5.1 | Number of sites anticipated in the EEA | 9 | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA | Yes | 
| E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT | 
| E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |  | 
| E.8.7 | Trial has a data monitoring committee | Yes | 
| 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 |  | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 3 | 
| E.8.9.1 | In the Member State concerned months |  | 
| E.8.9.1 | In the Member State concerned days |  | 
| E.8.9.2 | In all countries concerned by the trial years | 3 |