Abstract | BACKGROUND: Current treatments for in-transit melanoma (ITM) metastases are frequently invasive and do not improve overall survival. Recently, there has been increasing investigation into the use of topical agents. Diphenylcyclopropenone or diphencyprone (DPCP) is a novel, topical therapy that has been reported to have immune-sensitizing properties useful in the treatment of ITM. OBJECTIVE: To assess the clinical outcomes of patients treated within a prospective, non-randomized, non-comparative study using DPCP for cutaneous ITM metastases. METHODS: A review was conducted assessing the outcomes of 58 patients prospectively treated using DPCP. Patients had satellite or in-transit disease (stage IIIB+), with all lesion morphology types included. The patients were treated through a single, specialized clinic with regular outpatient follow-up. DPCP was topically applied as an aqueous cream in 0.005-1% concentrations once to twice per week for up to 24-48 h of duration. To assess variables associated with response, a per-protocol statistical analysis was performed. RESULTS: Fifty-four patients were treated who satisfied eligibility criteria for analysis. The overall response rates were as follows: complete response 22%, partial response 39%, stable disease 24% and progressive disease 15%. The mean time to complete response was 10.5 months, mean duration (disease-free interval) 12.3 months and recurrence rate in complete responders 41%. Lesion morphology was predictive of clinical benefit with a higher response in epidermotropic disease (P < 0.05). CONCLUSIONS: DPCP provided a well-tolerated, convenient and efficacious treatment for cutaneous ITM metastases. Identifying patterns of response may assist treatment selection and improve patient-rated outcomes.
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Authors | T Read, S Webber, J Tan, M Wagels, H Schaider, H P Soyer, B M Smithers |
Journal | Journal of the European Academy of Dermatology and Venereology : JEADV
(J Eur Acad Dermatol Venereol)
Vol. 31
Issue 12
Pg. 2030-2037
(Dec 2017)
ISSN: 1468-3083 [Electronic] England |
PMID | 28626861
(Publication Type: Journal Article)
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Copyright | © 2017 European Academy of Dermatology and Venereology. |
Chemical References |
- Cyclopropanes
- diphenylcyclopropenone
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Topics |
- Adult
- Aged
- Aged, 80 and over
- Cyclopropanes
(therapeutic use)
- Female
- Humans
- Male
- Melanoma
(drug therapy, secondary)
- Middle Aged
- Prospective Studies
- Skin Neoplasms
(drug therapy, secondary)
- Treatment Outcome
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