Photodynamic Therapy (PDT) With Metvix Cream 160 mg/g Versus PDT With Placebo Cream in Participan… (NCT00472108) | Clinical Trial Compass
CompletedPhase 3
Photodynamic Therapy (PDT) With Metvix Cream 160 mg/g Versus PDT With Placebo Cream in Participants With Primary Nodular Basal Cell Carcinoma
United States65 participantsStarted 2000-12
Plain-language summary
Photodynamic therapy (PDT) was the selective destruction of abnormal cells through light activation of a photosensitiser in the presence of oxygen. These cells accumulated more photosensitiser than normal cells. The photosensitiser generated reactive oxygen species upon illumination.
For skin diseases, there had been an increasing interest in using precursors of the endogenous photosensitiser protoporphyrin IX (PpIX). The most commonly used precursors have been 5-aminolevulinic acid (ALA) and its derivatives. The present test drug, Metvix, contained the methyl ester of ALA, which penetrated the lesions well and shows high lesion selectivity.
In vitro studies of animal and human tissues had shown significant intracellular formation of photoactive porphyrins after addition of Metvix. The increased photoactive porphyrins levels induced cytotoxic effects in tumour cells after photoactivation.
The primary objective was to compare PDT with Metvix cream to PDT with placebo cream in terms of participants complete response rates based on histologically verified disappearance of the lesions at 6 months after last treatment cycle. Secondary objectives was to compare the two treatments in terms of histological and clinical mean participant response weighted by the number of lesions within a participant, lesion response rates across participants, clinical complete participant response, cosmetic outcome and adverse events.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
A participant with primary, nodular BCC lesion(s) suitable for entry is defined as a participant with
* Clinically diagnosed primary nodular BCC lesion(s).
* Histologically confirmed diagnosis of BCC.
* BCC lesions suitable for simple excision surgery.
* Males or females above 18 years of age.
* Written informed consent.
Exclusion Criteria:
A participant that is ineligible for inclusion is a participant fulfilling any of the following criteria:
* Participants with porphyria.
* Participants with Gorlin's syndrome.
* Participants with Xeroderma pigmentosum.
* Participants concurrently receiving immunosuppressive medication.
* Participants with a history of arsenic exposure.
* Participants with BCC arising in a previous radiated area.
* Known allergy to Metvix, a similar PDT compound or excipients of the cream.
* Participation in other clinical studies either concurrently or within the last 30 days.
* Pregnant or breast-feeding: All women of child-bearing potential must use adequate contraception (e.g. barrier methods, oral contraceptives or intrauterine device) during the treatment period and one month thereafter. In addition, they must have a negative pregnancy test prior to treatment..
* Conditions associated with a risk of poor protocol compliance.
Lesion Exclusion Criteria:
* A nodular BCC lesion in periorbital area, ears and nasolabial fold.
* A nodular BCC lesion with the longest diameter less than 6 millimeter (mm) or larger than 15 mm in face/…
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Number of Participants With Histologically Confirmed Complete Response