Imatinib mesylate is a tyrosine kinase inhibitor

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Induced Lichenoid Drug Eruption Erin H. Penn, MD; Hye Jin Chung, MD; Matthew Keller, MD PRACTICE POINTS mesylate can cause cutaneous adverse reactions including dry skin, alopecia, facial edema, photosensitivity rash, and lichenoid drug eruption (LDE). Topical, oral acitretin, and oral steroids may be reasonable treatment options for imatinib-induced LDE if discontinuing imatinib is not possible in a symptomatic patient. mesylate (imatinib) is a tyrosine kinase inhibitor initially approved by the US Food and Drug Administration in 2001 for chronic myeloid leukemia (CML). Since then, the number of indicated uses for imatinib has substantially increased. It is increasingly important that dermatologists recognize adverse cutaneous manifestations of imatinib and are aware of their management and outcomes to avoid unnecessarily discontinuing a potentially lifesaving medication. Adverse cutaneous manifestations in response to imatinib are not infrequent and can include dry skin, alopecia, facial edema, and photosensitivity rash. Other less comn manifestations include exfoliative dermatitis, nail disorders, psoriasis, folliculitis, hypotrichosis, urticaria, petechiae, Stevens-Johnson syndrome, erythema multiforme, Sweet syndrome, and leukocytoclastic vasculitis. We report a case of imatinib-induced lichenoid drug eruption (LDE), a rare cutaneous manifestation, along a review of the literature. Cutis. 2017;99:189-192. mesylate is a tyrosine kinase inhibitor initially approved by the US Food and Drug Administration in 2001 for chronic myeloid leukemia (CML). The indications for imatinib have expanded since its initial approval. It is increasingly important that dermatologists recognize adverse cutaneous manifestations associated imatinib and are aware of their management and outcomes to avoid unnecessarily discontinuing a potentially lifesaving medication. Adverse cutaneous manifestations in response to imatinib are not infrequent, accounting for 7% to 21% of all side effects. 1 The st frequent cutaneous manifestations of imatinib are dry skin, alopecia, facial edema, and photosensitivity rash, respectively. 1 Other less comn manifestations include exfoliative dermatitis, nail disorders, psoriasis, folliculitis, hypotrichosis, urticaria, petechiae, Stevens-Johnson syndrome, erythema multiforme, Sweet syndrome, and leukocytoclastic vasculitis. We report a case of imatinib-induced lichenoid drug eruption (LDE), a rare cutaneous side effect of imatinib use, along a review of the literature. Dr. Penn is from Jefferson Medical College, Philadelphia, Pennsylvania. Drs. Chung and Keller are from the Department of Dermatology and Biology, Thomas Jefferson University, Philadelphia. The authors report no conflict of interest. The etable is available in the Appendix online at www.cutis.com. Correspondence: Matthew Keller, MD, 833 Chestnut St, Ste 740, Philadelphia, PA 19107 (msk152@hotmail.com). Case Report An 86-year-old man a history of gastrointestinal stromal turs (GISTs) and myelodysplastic syndrome presented diffuse hyperpigmented skin lesions on the trunk, arms, legs, and lower lip of 2 weeks duration. He had been taking imatinib 400 mg once daily for 5 nths for GIST. Although VOLUME 99, MARCH 2017 189

C U T IS D o py co no Comment In addition to CML, imatinib has been approved for acute lymphoblastic leukemia, myelodysplastic syndromes, aggressive systemic mastocytosis, hypereosinophilic syndrome, chronic eosinophilic leukemia, dermatofibrosarcoma protuberans, and GIST. Moreover, off-label use of imatinib for various other tyrosine kinase positive cancers and rheumatologic conditions have been documented.2,3 With the expanding use of imatinib, there will be re occasions for dermatologists to encounter cutaneous manifestations associated its use. According to a PubMed search of articles indexed for MEDLINE using the terms imatinib mesylate lichenoid drug, there have been few case reports of LDE associated imatinib in the literature (etable).4-24 Compared to classic LDE, imatinib-induced LDE has a few characteristic findings. Classic LDE frequently spares the oral and genitalia, but imatinib-induced LDE manifestations on the oral and genitalia as well as cutaneous eruptions have been reported.4-9 In fact, the first known case of imatinib-induced LDE was an oral eruption in a patient CML.4 In patients oral involvement, lesions have been described as lacy reticular macules and violaceous papules, erosions, and ulcers.4,5,12 Interestingly, of those cases manifesting as concomitant oral and cutaneous LDE, the oral eruptions recurred re frequently, 3 of 12 patients having recurrence of oral lesions after the cutaneous manifestations resolved.8,16 Genital manifestations of imatinib-induced LDE were much less comn.9,11 To date, subsequent reports of imatinib-induced LDE have documented skin manifestations consistent classic LDE occurring in a diffuse, bilateral, photodistributed pattern.10,15,16 One case presented diffuse hyperpigmentation associated LDE in a Japanese patient.20 The authors suggested this finding may be re prominent in patients skin of color,20 which is consistent the current case. Nail findings such as subungual hyperkeratosis and longitudinal ridging also have been reported.9,11 The latency period between initiation of imatinib and onset of LDE generally ranges from 1 to 12 nths, onset st comnly occurring between 2 to 5 nths or dosage increase (etable). -induced LDE primarily has been documented a 400-mg dose, 1 case of a 600-mg dose and 1 case of an 800-mg dose, which suggests dose dependency. Furtherre, reports exist of several patients responding well to dose reduction subsequent recurrence on dose reescalation.13,15 Historically, LDE resolves discontinuation of the drug after a few weeks to nths. When discontinuation of imatinib is unfavorable or patients report symptoms including severe pruritus or pain, treatment should be considered. Topical or oral can be used to treat imatinib-induced LDE, similar to lichen planus. When oral are contraindicated (eg, due to poor patient t the oncologist stopped the medication 2 weeks prior, the lesions were persistent and gradually expanded to involve the trunk, arms, legs, and lower lip. He denied any pain or pruritus. Physical examination revealed multiple ill-defined, brown to violaceous, slightly scaly macules and patches on the trunk (Figures 1A and 1B), arms, and legs (Figure 1C), as well as violaceous to erythematous patches on the l aspect of the lower lip (Figure 2). Two 4-mm punch biopsies were performed from the chest and back, which revealed an atrophic epidermis, lichenoid infiltration, and multiple melanophages in the upper dermis consistent LDE (Figure 3). Direct immunofluorescence was negative. Therefore, based on the clinicopathologic correlation, the diagnosis of imatinib-induced LDE was made. He was treated clobetasol ointment twice daily for 3 weeks some improvement. His GIST was stable on follow-up computed tography 3 nths after presentation, and imatinib was resumed 1 nth later continued rash that was stable topical corticosteroid treatment. A B C Figure 1. Widespread violaceous, hyperpigmented, slightly scaly macules and patches on the chest (A), back (B), and leg (C). 190 CUTIS

symptomatically either oral and/or topical steroids and/or acitretin complete remission or tolerable recurrences. Dalmau et al9 reported 3 patients who responded poorly to topical and oral steroids and were subsequently treated acitretin 25 mg once daily; 2 of 3 patients responded favorably to treatment and imatinib was able to be continued. In the current case imatinib initially helped, but because his rash was relatively asymptomatic, imatinib was restarted control of rash topical steroids. He developed some pancytopenia, which required intermittent stoppage of the imatinib. Conclusion We present a case of imatinib-induced cutaneous and oral LDE in a patient GIST. Topical, oral acitretin, and oral steroids all may be reasonable treatment options if discontinuing imatinib is not possible in a symptomatic patient. If these therapies fail and the eruption is extensive or intolerable, dosage adjustment is another option to consider before discontinuation of imatinib. no t co py Figure 2. Lacy, violaceous to erythematous patches on the l surface of the lower lip. C U T IS D A o REFERENCES B Figure 3. Atrophic epidermis, lichenoid infiltration of lymphocytes, and multiple melanophages in the upper dermis on histopathology (A and B)(H&E, original magnifications 40 and 100). tolerance), oral acitretin at 25 to 35 mg once daily for 6 to 12 weeks has been reported as an alternative treatment.25 In the majority of cases of imatinib-induced LDE, it was undesirable to stop imatinib (etable). Notably, in half the reported cases, imatinib was able to be continued and patients were treated 1. Scheinfeld N. mesylate and dermatology part 2: a review of the cutaneous side effects of imatinib mesylate. J Drugs Dermatol. 2006;5:228-231. 2. Kim H, Kim NH, Kang HJ, et al. Successful long-term use of imatinib mesylate in pediatric patients sclerodermatous chronic GVHD. Pediatr Transplant. 2012;16:910-912. 3. Prey S, Ezzedine K, Doussau A, et al. mesylate in scleroderma-associated diffuse skin fibrosis: a phase II multicentre randomized double-blinded controlled trial. Br J Dermatol. 2012;167:1138-1144. 4. Lim DS, Muir J. Oral lichenoid reaction to imatinib (STI 571, gleevec). Dermatology. 2002;205:169-171. 5. Ena P, Chiarolini F, Siddi GM, et al. Oral lichenoid eruption secondary to imatinib (glivec). J Dermatolog Treat. 2004;15:253-255. 6. Roux C, Boisseau-Garsaud AM, Saint-Cyr I, et al. Lichenoid cutaneous reaction to imatinib. Ann Dermatol Venereol. 2004;131:571-573. 7. Prabhash K, Doval DC. Lichenoid eruption due to imatinib. Indian J Dermatol Venereol Leprol. 2005;71:287-288. 8. Pascual JC, Matarredona J, Miralles J, et al. Oral and cutaneous lichenoid reaction secondary to imatinib: report of two cases. Int J Dermatol. 2006;45:1471-1473. 9. Dalmau J, Peramiquel L, Puig L, et al. -associated lichenoid eruption: acitretin treatment allows maintained antineoplastic effect. Br J Dermatol. 2006;154:1213-1216. 10. Chan CY, Browning J, Smith-Zagone MJ, et al. lichenoid dermatitis associated imatinib mesylate. Dermatol Online J. 2007;13:29. VOLUME 99, MARCH 2017 191

11. Wahiduzzaman M, Pubalan M. Oral and cutaneous lichenoid reaction nail changes secondary to imatinib: report of a case and literature review. Dermatol Online J. 2008;14:14. 12. Basso FG, Boer CC, Correa ME, et al. Skin and oral lesions associated to imatinib mesylate therapy. Support Care Cancer. 2009;17:465-468. 13. Kawakami T, Kawanabe T, Soma Y. lichenoid eruption caused by imatinib mesylate in a Japanese patient chronic myeloid leukaemia. Acta Derm Venereol. 2009;89:325-326. 14. Sendagorta E, Herranz P, Feito M, et al. Lichenoid drug eruption related to imatinib: report of a new case and review of the literature. Clin Exp Dermatol. 2009;34:E315-E316. 15. Kuraishi N, Nagai Y, Hasegawa M, et al. Lichenoid drug eruption palplantar hyperkeratosis due to imatinib mesylate: a case report and a review of the literature. Acta Derm Venereol. 2010;90:73-76. 16. Brazzelli V, Muzio F, Manna G, et al. Photoinduced dermatitis and oral lichenoid reaction in a chronic myeloid leukemia patient treated imatinib mesylate. Photodermatol Photoimmunol Photomed. 2012;28:2-5. 17. Ghosh SK. Generalized lichenoid drug eruption associated imatinib mesylate therapy. Indian J Dermatol. 2013;58:388-392. 18. Lee J, Chung J, Jung M, et al. Lichenoid drug eruption after low-dose imatinib mesylate therapy. Ann Dermatol. 2013;25:500-502. 19. Machaczka M, Gossart M. Multiple skin lesions caused by imatinib mesylate treatment of chronic myeloid leukemia. Pol Arch Med Wewn. 2013;123:251-252. 20. Kagito Y, Mizuashi M, Kikuchi K, et al. Lichenoid drug eruption hyperpigmentation caused by imatinib mesylate [published online June 20, 2013]. Int J Dermatol. 2014;53:E161-E162. 21. Arshdeep, De D, Malhotra P, et al. mesylate-induced severe lichenoid rash. Indian J Dermatol Venereol Leprol. 2014;80:93-95. 22. Lau YM, Lam YK, Leung KH, et al. Trachyonychia in a patient chronic myeloid leukaemia after imatinib mesylate. Hong Kong Med J. 2014;20:464.e2. 23. Bhatia A, Kanish B, Chaudhary P. Lichenoid drug eruption due to imatinib mesylate. Int J Appl Basic Med Res. 2015;5:68-69. 24. Luo JR, Xiang XJ, Xiong JP. Lichenoid drug eruption caused by imatinib mesylate in a Chinese patient gastrointestinal stromal tur. Int J Clin Pharmacol Ther. 2016;54:719-722. 25. Laurberg G, Geiger JM, Hjorth N, et al. Treatment of lichen planus acitretin. a double-blind, placebocontrolled study in 65 patients. J Am Acad Dermatol. 1991;24:434-437. 192 CUTIS

ONLINE APPENDIX Case Reports of Induced Lichenoid Drug Eruption Nail Treatments Lim and Muir 4 (2002) Ena et al 5 (2004) Roux et al 6 (2004) Prabhash and Doval 7 (2005) Pascual et al 8 (2006) 72/F CML ND 3 NR Erosion plaques and ulcers of the tongue and buccal 62/M GIST ND 12 NR Grey violaceous plaques on the labial and buccal 52/M CML 400 2 Disseminated eruption 50/M CML 400 6 Maculopapular lesions on the eyelids 69/F CML 400 2 Pruritic papules and plaques on the trunk, arms, legs, face NR Dexamethasone uthwash NR Topical NR NR Oral Discontinued Continued ND NR NR ND Oral erosions on the dorsal tongue NR Oral and topical Tentative discontinuation (medication was discontinued and restarted the concomitant use of topical steroid) recurrence of oral lesion only reintroduction 65/F CML 400 3 Grey violaceous plaques on the trunk, arms, legs Violaceous plaques on the lateral tongue a lacy pattern NR Oral and topical flares of oral lesions CONTINUED ON NEXT PAGE VOLUME 99, MARCH 2017 E1

(continued) Dalmau et al 9 (2006) Chan et al 10 (2007) Wahiduzzman and Pubalan 11 (2008) Nail Treatments 76/M CML 400 4 Erythema and lichenoid rash on trunk and upper arms NR Subungual hyperkeratosis Oral antihistamine, topical 60/M CML 400 2 Lichenoid eruption on the face, wrist, and neck 75/M GIST 400 1 Generalized eruption of lichenoid papules 50/M CML 400 2 Generalized eruption on the face, chest, arms, legs 56/M CML 600 3 Violaceous papules and plaques on the arms, legs, and chest 31/M CML 400 5 Diffuse itchy papules on the chest, palms, soles, and genitalia Reddish macules and erosions, erosions on the penis and anal region NR Oral, acitretin NR NR Systemic antihistamines, topical steroids, acitretin White reticulated macules on buccal NR Topical corticosteroid, oral antihistamine, acitretin NR NR Oral and topical Lacy eruption on the lips, buccal, and tongue Longitudinal ridging Oral and topical Discontinued, no relapse at 5 on oral prednisone 20 mg Discontinued and reinitiated due to worsening of CML Recurrence rechallenge E2 CUTIS

Basso et al 12 (2009) Kawakami et al 13 (2009) Sendagorta et al 14 (2009) Kuraishi et al 15 (2010) Nail Treatments 85/ND CML 400 5 Skin eruption on the arms and legs Ulcer on the lower lip 55/M CML ND 3 NR Erosions on the tongue, lower lip, and buccal 53/M CML 400 2 Generalized, violaceous, mildly pruritic papules and plaques on the abdomen and proximal arms 71/M GIST 400 3 Violaceous, scaly plaques on the flank and upper arms 57/M CML 400 2 Lichenoid eruption on the arms and legs, palplantar keratosis NR Oral NR Topical and oral NR NR Topical Violaceous erosions on tongue and labia White streak erosion of buccal Discontinued, restarted and discontinued due to recurrence of rash Continued Nearcomplete remission at 3 Dose adjustment of imatinib to 200 mg Remission, recurrence dose increase to 400 mg NR ND Discontinued NR Topical, oral antihistamine Tentative discontinuation, restarted dose adjustment Partial remission CONTINUED ON NEXT PAGE VOLUME 99, MARCH 2017 E3

(continued) Nail Treatments Brazelli et al 16 (2012) 60/F CML 400 12 Photoinduced dermatitis Radiating striae on oral and tongue NR Topical and oral Ghosh 17 (2013) 63/M CML 400 2 Numerous well-defined, violaceous, discrete and coalescing papules and plaques on arms, legs, abdomen, chest, and back Lee et al 18 (2013) 77/M GIST 400 NR Violaceous pruritic papules on both legs progressing to whole-body involvement No lesions NR Topical NR NR Switch to sunitinib improvement; no other therapy reported Discontinued and restarted intermittent recurrence of oral lesions Stopped and reintroduced few new lesions controlled topical steroids but recurrence rechallenge was discontinued in favor of sunitinib improvement of eruption, but kidney function worsened so imatinib was reintroduced at lower doses of 200 mg Patient was maintained at time of publication on 200 mg of imatinib continued cutaneous eruption E4 CUTIS

Machaczka and Gossart 19 (2013) Kagito et al 20 (2014) Arshdeep et al 21 (2014) Nail Treatments 48/M CML 400 2 Multiple erythematous skin lesions peeling of skin, particularly on the fingertips and palms, erythematous plaques in axilla and bright red maculopapular lesions on back, penis, and groin 58/F GIST 400 3 Violaceous and hyperpigmented papules and plaques on face, back, and limbs 47/F CML 800 3 Pruritic lichenoid papules and plaques minimal scale photodistributed on neck, chest, back, and dorsal hand; erythematous plaques on palms and soles; scalp bright erythema NR NR NR After initial reduction to 300 mg was not helpful, the drug was discontinued and dasatinib therapy introduced Violaceous plaques on buccal Lower l lip NR Topical All 20 nails showed subungual hyperkeratosis, onychomadesis and onycholysis Oral prednisolone 0.5 mg/kg 4- taper Continued No resolution, no further data CONTINUED ON NEXT PAGE VOLUME 99, MARCH 2017 E5

(continued) Nail Treatments Lau et al 22 (2014) Bhatia et al 23 (2015) Luo et al 24 (2016) 86/M CML 400 3 Pruritic skin rash white streaks and scaling over face, scalp, trunk, and limbs 72/M CML 600 9 Pruritic lesion only on photoexposed areas to start generalization of violaceous papules and plaques on neck, dorsal hands, extensor forearms, arms, and trunk 73/M GIST NR 6 Lesions on face, trunk, and limbs Current case 86/M GIST 400 5 Hyperpigmented macules and patches on trunk, arms, legs NR Trachyonychia onycholysis Violaceous papules on angles of uth and lower lip; no oral or genital l lesions None Topical and antihistamines NR NR Discontinuation of drug Lacy white to erythematous macules on the lower lip NR Topical corticosteroid Abbreviations: F, female; CML, chronic myeloid leukemia; ND, not documented; NR, not reported; M, male; GIST, gastrointestinal stromal tur. Topical steroid Stopped and nilotinib started Continued Rash was controlled topical and antihistamine therapy Stopped Complete resolution Discontinued and on hold due to stable condition Improvement at 3 wk E6 CUTIS