Palmar-plantar erythrodysesthesia

Tyrosine kinase inhibitor nilotinib induced palmoplantar erythrodysesthesia: A rare case

Introduction

Nilotinib is a second generation Tyrosine Kinase inhibitor (TKI) used in the treatment of Chronic Myeloid Leukemia (CML). The development of tyrosine kinase inhibitors has transformed chronic phase chronic myeloid leukemia from a disease with a poor prognosis to a treatable chronic disease. Long-term treatment with tyrosine kinase inhibitors means that patients must be clinically managed and monitored for years. While under Nilotinib tretament, the development of palmoplantar erythrodyesthesia is a very rare condition compared to other oncological drugs.

Case report

A 66-year-old male patient, who was diagnosed with chronic phase CML in 2019 had been placed under imatinib treatment . He had major molecular response loss in 2021, and was started on second generation TKI nilotinib 2  ×  400mg/day, considering his comorbidities. We present a case of a 66-year-old patient with CML who developed palmoplantar erythrodysesthesia on the 21st day starting nilotinib treatment.

Conclusion

It is important to manage the side effects that develop in long-term treatments. Adverse events can have a negative impact on patient compliance and quality of life and lead to poor clinical outcomes Our case is the first to develop PPE after beginning nilotinib use. We present this phenomenon to raise awareness and ignite a review of management strategies.In this case, we wanted to emphasize the importance of managing side effects.

Paclitaxel-Induced Palmar-Plantar Erythrodysesthesia

Palmar-plantar erythrodysesthesia (PPE) is an uncommon adverse event with paclitaxel. We report a case of PPE due to paclitaxel to create awareness and review management strategies. A 61-year-old female with locally advanced lobular breast cancer was started on neoadjuvant chemotherapy with four cycles of dose-dense doxorubicin and cyclophosphamide. She completed these chemotherapy cycles uneventfully and was started on weekly paclitaxel (80mg/m²) with a gap of two weeks. After receiving the sixth dose of paclitaxel, the patient presented with erythema, swelling, and discomfort of her hands and feet, interfering with her quality of life due to difficulty in carrying out daily routine activities. The changes were acute, occurred within a few days after the sixth dose of paclitaxel, and were consistent with PPE grade 2. Paclitaxel was discontinued, and the patient was switched to docetaxel every three weeks for two cycles. She used emollients and moisturizing creams for her local symptoms, after stopping paclitaxel, erythema, swelling, and discomfort of her hands and feet resolved within two weeks. She did not have a recurrence of these symptoms with docetaxel. Paclitaxel can cause PPE. Its incidence in the literature might be underreported. Discontinuation of paclitaxel can reverse skin toxicity and improve patient’s quality of life.