Non-melanoma skin cancer (NMSC) incidence as well as morbidity rates are high in older patients. Surgery is the standard of care. About 5 to 10% of NMSC present high-risk clinico-pathologic features that can increase risk of local recurrence (LR).
Adjuvant radiation therapy (ART) is often discussed regarding the risk of local recurrence. Despite the lack of high level evidence, ART is indicated in patients according to unfavorable prognostic factors. ART benefit is generally questioned in regard to the potential degradation of the patient's quality of life (QoL). Currently there is no prospective trial or recommendations that take into account geriatric patients' evaluation and profiles during the management of NMSC. In addition, there is no data that could help to define the subgroup of elderly patients who will benefit from ART in tumors with unfavorable prognostic factors.
In terms of ART, multiple fractionation schedules are available, ranging from standard fractionation (45-60Gy in 5-6 weeks) to the extreme hypofractionation (HF) delivering 16-18Gy in one fraction.
In routine practice, HF is mainly preferred in elderly patients for more convenience by reducing the number of transports and increase health related quality of life (HRQoL). However, there is no data on the fragility profiles of these patients, nor validating any HF schedule in terms of efficacy, acute toxicity, cosmetic results, and impact on HRQoL.
the main ain objective is to evaluate the comparative efficacy of two modalities of Radiotherapy over surgery alone on local tumor control in older patients with Non Melanoma Skin Cancer (NMSC) In current practice, adjuvant radiotherapy is discussed regarding the risk of local recurrence as determined by the existence (or not) of unfavorable prognostic factors. The proposed study will include R0-high risk of CBC and CEC of the skin in elderly patients. There is no risk regarding the design of the trial as the last will respond to two important unknown questions regarding the utility of RT and its fractionation in this population. Moreover, it is an excellent opportunity to collect prospectively geriatric evaluation and HRQoL data that are lacking in the literature for skin cancers. No constraints are seen neither in the design, nor in the potential recruitments.
Patients aged ≥ 70 years
OMS 0-3
Pathology confirmation of invasive SCC or BCC
At least one of high-risk factors for recurrence (R0 but close margins, location/size, microscopic perineural invasion, recurrent primary disease, immunosuppression, thickness including Breslow and Clark level, poorly-moderately differentiated)
Macroscopic incomplete resection of the primary tumor (≥ R1)
Patient with severe dementia not allowing follow-up
Any psychological, familial, sociological, geographical or logistical reasons that would prevent participation to surveillance during treatment and follow-up
Other active cancers in treatment
Parallel
Surgery with additional moderate hypofractionation RT (15 fractions)
Other interventionAfter randomization, patients will then be followed-up at 3 months post randomization and at each surveillance visit (M6, M12, M24 and M36). Adjuvant Radiotherapy: -Arm B: Surgery followed by moderate hypofractionation RT (15 fractions): 45Gy in 15 fractions, 3 fractions per week over 5 weeks to the operative bed.
Surgery alone, without radiation post surgery
Other interventionArm A: Surgery alone followed by surveillance
Surgery with extreme hypo fractionation treatment (HF)
RadiationAfter randomization, patients will then be followed-up at 3 months post randomization and at each surveillance visit (M6, M12, M24 and M36). Adjuvant Radiotherapy: -Arm C= Surgery followed by extreme hypofractionation RT (5 fractions, 2 fractions/week): 30Gy in 5 fractions of 6Gy over 5 weeks to the operative bed.
Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30)
Levels and changes from baseline in HRQoL as assessed by the cancer-specific European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) and QLQ-ELD14 module developed for older patients with cancer, and treatment burden, as assessed by an adapted version of the Treatment Burden Questionnaire (TBQ; EVALUATION AT
QLQ-ELD14 Questionnaire
Levels and changes from baseline in HRQoL as assessed by the cancer-specific European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) and QLQ-ELD14 module developed for older patients with cancer, and treatment burden, as assessed by an adapted version of the Treatment Burden Questionnaire (TBQ; EVALUATION AT
rate of Toxicity
Acute and late toxicity, as assessed by CTCAE v4.03 criteria
efficacy of treatment modalities on regional recurrence (RR), at 3-year follow-up
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