|Year : 2014 | Volume
| Issue : 3 | Page : 334-336
Sorafenib-induced hand-foot syndrome in a patient of renal cell carcinoma
Amrita Sil1, Nilay Kanti Das2
1 Department of Pharmacology, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
2 Department of Dermatology, Medical College, Kolkata, West Bengal, India
|Date of Submission||17-Jul-2013|
|Date of Decision||07-Nov-2013|
|Date of Acceptance||18-Mar-2014|
|Date of Web Publication||09-May-2014|
|Date of Print Publicaton||09-May-2014|
Department of Pharmacology, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal
Source of Support: None, Conflict of Interest: None
Sorafenib, a multikinase inhibitor, is approved for treatment of renal cell cancer and hepatocellular cancer. Hand-foot syndrome (HFD) is a condition where erythema, scaling, and bullous lesion affect the hand and feet. In this case, a post-nephrectomy renal carcinoma patient prescribed sorafenib developed HFD 1 week after the drug usage. All laboratory parameters were within normal limits. The dose of sorafenib was reduced and topical corticosteroids, antihistamines, and emollients were prescribed. The reaction reduced after 2 weeks of therapy, only to reappear again when the second cycle of sorafenib-targeted therapy was started. The case was diagnosed as sorafenib-induced HFD.
Keywords: Hand-foot syndrome, renal cell carcinoma, sorafenib
|How to cite this article:|
Sil A, Das NK. Sorafenib-induced hand-foot syndrome in a patient of renal cell carcinoma. Indian J Pharmacol 2014;46:334-6
| ╗ Introduction|| |
Sorafenib is used in treatment of primary renal cell carcinoma and hepatocellular carcinoma and is approved by Food and Drug Administration (FDA). It is a small molecule multikinase inhibitor (tyrosine kinase, Raf serine/threonine kinases) and also inhibits vascular endothelial growth factor (VEGF), platelet-derived growth factor β (PDGF β), and tumour progression.  Adverse reactions to sorefinib are gastrointestinal (diarrhea, increased amylase and lipase, nausea, constipation), dermatological [acne, flushing, rash/desquamation, hand-foot syndrome (HFD), alopecia, pruritus], hyperthyroidism, hypertension, and hypoalbuminemia. HFD or palmoplantar erythrodysaesthesia (PPE) is chemotherapy-induced acral erythema characterized by reddening, swelling, numbness, and desquamation on palms and soles that occur after administration of chemotherapeutic agents. The drugs implicated in HFD are 5-fluorouracil, capecitabine, cytarabine, pegylated doxorubicin, and tyrosine kinase inhibitors like sunitinib and sorafenib.  HFD caused by multikinase inhibitors are distinct from that caused by the traditional chemotherapeutic agents.  In this case report, we describe a case of HFD caused by sorafenib.
| ╗ Case Report|| |
A 46-year-old, normotensive, non-hypertensive male patient suffering from advanced renal cell carcinoma (Fuhrman's nuclear grade III) of left kidney with metastasis to lung, para-aortic, and paratracheal lymph nodes underwent radical left nephrectomy and left adrenalectomy with retroperitoneal lymph node dissection. He was started on sorafenib tablets 600 mg daily 1 week after operation.
While on therapy for 7 days, he complained of pain and tingling sensation over the pressure points of soles and palms on walking and while holding heavy objects. Though he was distressed with the condition but could pursue normal activities. On examination, erythema and edema was noted, which progressed to vesicles and bulla [Figure 1]. Scaling and hyperkeratosis developed subsequently and was patchy and localized to the pressure areas [Figure 2]. Periungual areas and sides of hands and feet were also involved by the bullous lesions. There was no other lesion elsewhere on skin and mucosae were spared too. There were no associated systemic symptoms. Allergic contact dermatitis (ACD), id reaction, pompholyx, and PPE (HFD) were considered as differential diagnosis. Histopathological examination of vesicular lesion revealed edema and mononuclear infiltration (mostly lymphocytes) around blood vessels in upper dermis. Clinicopathological correlation confirmed the diagnosis as HFD, and because it did not interfere with normal activities its severity was graded as grade 2. 
|Figure 1: Tense vesicles and bullae over palmer surface of tip of fi ngers and interphalangeal joints|
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Laboratory examinations showed hemoglobin (Hb) 13.5g%, Total leucocyte count 7900/cmm, erythrocyte sedimentation rate (ESR) 14 mm, PCV 42%, mean corpuscular volume (MCV) 87.5 fl, mean corpuscular hemoglobin concentration (MCHC) 32.1%, fasting blood sugar (FBS) 92 mg/dl, urea 20 mg/dl, creatinine 0.9 mg/dl, bilirubin 0.8 mg/dl, albumin: globulin ratio 1.56, alkaline phosphatase (ALP) 196 IU/l, serum glutamic-pyruvic transaminase (SGPT) 41 IU/l, and serum glutamic oxaloacetic transaminase (SGOT) 44 IU/l.
The reaction was considered to be nonfatal and sorafenib was continued at a lower dose of 400 mg. The patient was prescribed topical clobetasol, cetirizine tablets, cold sponging, and the lesions decreased within 2 weeks [Figure 3]. When sorafenib-targeted therapy was completed after 2 months, the lesions on the palms and soles healed entirely without any squeale. After a month when the second cycle-targeted therapy with sorafenib was started, the lesions reappeared. Similar protocol for treatment led to decrease in these symptoms.
|Figure 3: Healed bullae on completion of sorafenib-targeted therapy and treatment with topical clobetasol|
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Causality assessment was carried out using the World Health Organization (WHO)-Uppsala Monitoring centre (UMC) criteria  and Naranjo's scale.  The algorithms showed that sorafenib was the "probable" (Naranjo's score 8) cause of this adverse drug reaction. Severity assessment was done using modified Hartwig's scale,  and the ADR was categorized as "moderately severe" (level 3).
| ╗ Discussion|| |
HFD associated with sorafenib has been reported in patients of breast cancer, hepatocellular carcinoma, metastatic renal cell carcinoma, and melanoma. ,,, Single agent sorafenib therapy at standard dose of 400 mg twice daily has been shown to be well tolerated with the incidence of HFD in 25-30% patients.  Sorafenib has been associated with other dermal symptoms like rash/desquamation, alopecia, pruritus, xerosis, nail changes, flushing, facial erythema, splinter subungual hemorrhages, erythema multiforme, and keratoacanthomas.  Although sorafenib-induced HFD can be indistinguishable from classical HFD induced by cytarabine, 5 fluoro uracil and methotrexate, it is less severe in nature, more localized, presents more frequently with hyperkeratosis, and affects friction and weight-bearing acral surfaces more focally than classical HFD. HFD appears as a dose-dependent toxicity of sorafenib and reduction of dose is often resorted for the abetment of symptoms. In the present case, the patient recovered after the dose of sorafenib was reduced; the laboratory parameters were normal in range and reappeared once again when targeted therapy was restarted. Thus, we can label the case as sorafenib-induced HFD.
Prevention of HFD can be made by reducing the exposure of hands and feet to hot water, avoiding constrictive clothing, excessive rubbing, exercises that place undue stress on hands and feet, applying alcohol-free moisturizing creams, and exfoliating hyperkeratosed areas of palms and soles. 
Studies have evaluated various possible mechanisms of sorafenib causing HFD. The anti-VEGF property of the drug has been hypothesised to be the possible pathogenesis.  Combination regimes with other antiangiogenic drugs like bevacizumab have increased the incidence of HFD. Sorafenib is widely used for its effectiveness in various solid tumours. As its use increases, a high index of suspicion is warranted for prevention, early detection, and treatment of HFD with this drug.
| ╗ References|| |
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[Figure 1], [Figure 2], [Figure 3]
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