Outcomes of older adults aged 90 and over with cutaneous malignancies after electrochemotherapy with bleomycin: A matched cohort analysis from the InspECT registry.

BACKGROUND: With extending life expectancy, more people are diagnosed with cutaneous malignancies at advanced ages and are offered nonsurgical treatment. We assessed outcomes of the oldest-old adults after electrochemotherapy (ECT). METHODS: The International Network for Sharing Practices of ECT (InspECT) registry was queried for adults aged ≥90 years (ys) with skin cancers/cutaneous metastases of any histotype who underwent bleomycin-ECT (2006-2019). These were subanalysed with patients aged <90 ys after matching 1:2 for tumor location, number, size, histotype, and previous treatments. We assessed ECT modalities, toxicity (CTCAE), response (RECIST), and patient perception (EQ-5D). RESULTS: Sixty-one patients represented the study cohort (median 92 ys, range 92-104), 122 the control group (median 77 ys, range 23-89). Among the oldest-old, 44 patients (72%) had primary/recurrent skin cancers, 17 (28%) cutaneous metastases. Median tumour size was 15 mm (range, 5-450). The oldest-old adults underwent ECT mainly under local/regional anaesthesia (59% vs 39% p = .012). We observed no differences regarding dose and route of chemotherapy (intravenous vs intratumoral, p = .308), electrode geometry (linear vs hexagonal, p = .172) and procedural duration (18 vs 21 min, p = .378). Complete response (57.4 [95%-CI 44.1%-70.0%] vs 64.7% [95%-CI 55.6%-73.2%], p = .222) and 1-year local control (76.7% vs 81.7, p = .092) rates were comparable. Pain and skin hyperpigmentation were mild in both groups. Skin ulceration persisted longer in the oldest-old patients (4.4 vs 2.4 months, p = .008). CONCLUSIONS: The oldest-old adults with cutaneous malignancies undergo ECT most commonly under local/regional anaesthesia with safety profiles and clinical effectiveness similar to their younger counterparts, except in case of ulcerated tumors.

Electrochemotherapy in non-melanoma head and neck skin cancers: a three-center experience and review of the literature.

BACKGROUND: The main purposes of this study were to evaluate the efficacy of electrochemotherapy in head and neck tumors, to assess local tumor control, its safety profile and its impact on the patients' quality of life. METHODS: This is a multicenter prospective, non-randomized phase II trial. This trial was carried out at the Dermatology Clinic of the "Sapienza" University of Rome, at the Dermatology Clinic of the University of Chieti and at the Dermatology Clinic of the University of Turin. Fifty-five patients with head and neck cancer were recruited. Electrochemotherapy was carried out according to the ESOPE guidelines. Statistical analyses were performed using Stata/SE v.12.0 Statistical Software. RESULTS: A significant clinical response was achieved in 50/55 patients with 91% of objective response rate (OR). Thirty-three out of 55 patients showed a complete response (CR) (60%); 17 treated patients had a partial response (PR) (31%). A significantly higher CR rate was obtained in patients not previously treated by surgery (15/19; 79%), with respect to those with a previous excision of the tumor (14/30; 47%) (P=0.025). An additional parameter influencing response is represented by anesthesia: patients treated by ECT with general anesthesia were characterized by significantly higher CR rate (68%) than those treated with local anesthesia (27%) (P=0.014). CONCLUSIONS: Our experience confirmed high efficiency in local tumor control, excellent toxicity profile, tissue preservation with good cosmetic and functional results, even with repeated applications. ECT can represent a first-line treatment in the local management of head and neck cancers.

Predicting patients at risk for pain associated with electrochemotherapy.

BACKGROUND: Electrochemotherapy describes the use of electric pulses to enhance chemotherapy uptake, and has proven highly efficient in treating cutaneous metastases. Patients referred for electrochemotherapy present with diverse clinical pictures, from multiple small lesions to large, ulcerated lesions. Post-electrochemotherapy pain has been observed in some patients. The objectives of this study were to evaluate pain scores before and after electrochemotherapy, and to investigate if patients at risk of post-procedure pain could be identified. METHODS: Seven cancer centres in the International Network for Sharing Practices on Electrochemotherapy (INSPECT) consecutively and prospectively reported to a common database. Electrochemotherapy consisted of intratumoural or intravenous injection of bleomycin, followed by delivery of electric pulses in local or general anesthesia. RESULTS: Of 121 patients 39% had metastatic melanoma, 18% squamous cell carcinoma, 16% breast cancer, 13% basal-cell carcinoma, and 14% other malignancies. Median size of the largest nodules was 2.3 cm (range 0.3-40 cm). A majority of patients presented with low pain scores, and this continued through follow-up (74%). A subset of patients had moderate (13%) or severe pain (13%) after treatment. Post-procedure pain was statistically significantly associated with: 1) moderate or severe pain before treatment (p<0.0001); 2) size of the largest treated lesion (p<0.01); 3) previous irradiation (p<0.02); and 4) high treatment current value (p<0.0001). CONCLUSION: The majority of patients had no or mild pain after electrochemotherapy. Patients at risk for post-procedure pain could be identified at the pre-treatment visit, and/or at the time of treatment, enabling a pain management strategy for this group.