Radiotherapy or Imiquimod in Complex Lentigo Maligna
RADICAL
A Randomised Controlled Multicentre Trial of Imiquimod Versus Radiotherapy for Lentigo Maligna (LM) When Staged Surgical Excision With 5mm Margins is Not Possible, is Refused, or Fails
1 other identifier
interventional
126
3 countries
10
Brief Summary
The purpose of this study is to investigate the effectiveness of using either radiotherapy (RT) or Imiquimod (ImiQ) to treat the Lentigo Maligna (LM), when surgery is not possible, is refused, or fails.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3
Started Aug 2015
Longer than P75 for phase_3
10 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 10, 2015
CompletedFirst Posted
Study publicly available on registry
March 20, 2015
CompletedStudy Start
First participant enrolled
August 31, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 24, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
March 30, 2023
CompletedJune 20, 2024
June 1, 2024
6.3 years
March 10, 2015
June 17, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Proportion of patients experiencing LM treatment failure
Determined by systematic biopsy, 6 months following completion of treatment.
6 months
Secondary Outcomes (5)
LM treatment failure at 12 months and 24 months after the completion of treatment.
12 and 24 months
Quality of life using Skindex-16 questionnaire
0-24 months
Quality of life using Skindex-29 questionnaire
0-24 months
Cosmetic outcome 24 months after treatment or at treatment failure
24 months
Incidence of invasive melanoma within treatment fields; a sub-study to evaluate the utility of reflectance confocal microscopy (RCM) compared with standard biopsy in diagnosing recurrence
0-24 months
Study Arms (2)
Imiquimod
EXPERIMENTALTopical imiquimod 5% cream * application to treatment area for 5 days/week for a total of 12 weeks * dispensed at baseline visit along with patient diary
Radiotherapy
EXPERIMENTALRadiotherapy * treatment regimen determined by treating radiation oncologist and as per standard practice at local institution * treatment to commence within 8 weeks of randomisation
Interventions
Eligibility Criteria
You may qualify if:
- Aged 18 years or older.
- A biopsy-proven LM. This includes previous treatment failures (not with imiquimod or RT) of LM that are diagnosed as biopsy-proven LM.
- LM that is in a location amenable to treatment with imiquimod and radiotherapy.
- Willing and able to comply with study requirements.
- Written informed consent.
You may not qualify if:
- Invasive melanoma.
- Medical or psychiatric condition that compromises the ability of the patient to complete protocol treatment or follow-up assessments.
- Patients who are pregnant or lactating. Women of child bearing potential must have a confirmed negative urine pregnancy test at study entry.
- Life expectancy of less than 2 years.
- Radiotherapy sensitivity syndrome
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (10)
Calvary Mater Newcastle
Newcastle, New South Wales, 2298, Australia
Melanoma Institute Australia
North Sydney, New South Wales, 2060, Australia
Skin and Cancer Foundation
Sydney, New South Wales, 2010, Australia
Westmead Hospital
Sydney, New South Wales, 2145, Australia
St Vincent's Hospital, Sydney
Sydney, New South Wales, Australia
Princess Alexandra Hospital
Brisbane, Queensland, 4102, Australia
Royal Adelaide Hospital
Adelaide, South Australia, 5000, Australia
The Alfred Hospital
Melbourne, Victoria, 3004, Australia
Hospital das Clinicas, University of Sao Paulo
São Paulo, Brazil
North Shore Hospital
Takapuna, Auckland, 0740, New Zealand
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Pascale Guitera
Melanoma Institute Australia
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 10, 2015
First Posted
March 20, 2015
Study Start
August 31, 2015
Primary Completion
December 24, 2021
Study Completion
March 30, 2023
Last Updated
June 20, 2024
Record last verified: 2024-06