Keywords
hidradenitis suppurativa, psoriasis, certolizumab, brodalumab
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hidradenitis suppurativa, psoriasis, certolizumab, brodalumab
Hidradenitis suppurativa (HS) and psoriasis are considered chronic inflammatory diseases suggesting the existence of common pathogenetic links1–3. Patients with psoriasis and HS have elevated levels of tumor necrosis factor (TNF) and interleukin-17 (IL-17) in lesional tissues, which has been the justification for selective targeting of these inflammatory pathways4–7. We present two cases of comorbidity of psoriasis and HS treated with certolizumab pegol and brodalumab due to the peculiarities of treatment with other therapies.
The first patient, a 27-year-old Caucasian woman, presented with extensive psoriasis covering her head, trunk, lower limbs over a period of 5 years, concomitant psoriatic arthritis with axial joint involvement (manifestations of hierolagonitis) over the previous 2 years and moderate HS-stage II (according to the Hurley staging system) on the axillae (Figure 1a, b, c, d, e) with considerable pain, discomfort and substantial negative effect on quality of life over the last year, despite the limited extent of the lesions. The patient didn’t have a positive family history for the above diseases and the molecular control for HLA-B27 was negative. Previous treatments with topical corticosteroids and methotrexate for one year were not effective and treatment with apremilast for 8 months didn’t offer clinical improvement. The patient underwent comprehensive laboratory investigations, including complete blood cell count, chemistry panel, tuberculosis (Quantiferon-TB Gold test), human immunodeficiency virus and hepatitis B and C screening and chest x-Ray. Since all these examinations revealed values within normal limits and because of the patient’s desire for childbirth, she was treated with certolizumab pegol (CZP). The initial dose was 400mg, followed by 400mg every 2 weeks. Treatment with CZP significantly improved psoriasis and psoriatic arthritis at week 8 and HS at week 12 (Figure 1f–i). She continues treatment 9 months after and at 3 months follow-up is fully controlled.
(a–e) Psoriatic and HS lesions of first patient before treatment with certolizumab pegol. (f–j) Psoriatic and HS lesions of first patient after treatment with certolizumab pegol.
The second patient, a 42-year-old Caucasian man, was referred to our hospital’s dermatological department with multiple, itchy, scaly, red-gray psoriatic plaques covering almost all his body: scalp, arms, trunk, thighs (Figure 2a–d) for the previous 6 months, over a history of 10 years psoriatic disease. The patient also experienced concomitant psoriatic arthritis with peripheral joint involvement and dactylitis discomfort over the previous 10 years, with moderate HS-stage II appearing on the groin area in the previous year. The above diseases had a negative impact factor on his quality of life. The patient’s family history was positive: his mother and sister were also suffering from psoriasis. The patient had until recently received almost all the available therapies related to his diseases: cyclosporine for 2 years interrupted due to urea and creatinin increase (examinations restored after discontinuation), methotrexate and golimumab for 3 years with improvement only in psoriatic arthritis, adalimumab ustekinumab and secukinumab, with a partial response. After a complete laboratory examination, with results in normal limits, the patient started therapy with brodalumab. The initial dose was 210 mg at weeks 0, 1, 2 followed by 210 mg every 2 weeks. His psoriasis and psoriatic arthritis were highly improved at week 8 (Figure 2 e–h), as was HS at week 16. He has continued treatment for 1 year; at 3 months follow-up he reported improvement in of his quality of life.
Monoclonal antibody therapies have revolutionized the treatment of chronic inflammatory disorders such as psoriasis and HS. CZP is a TNF inhibitor that does not have a fragment crystallizable (Fc) region, which is normally present in a complete antibody and therefore it does not cause antibody-dependent cell-mediated cytotoxicity8–10. In contrast to other whole-antibody anti-TNFs, CZP crosses the placenta only by passive diffusion and could therefore be considered as the first-line choice of treatment for women who wish to become pregnant. Since CZP is an anti-TNF drug, therapies which have good clinical response in both psoriasis/psoriatic arthritis and HS, it was chosen as the treatment of choice in our case since it also has a safe profile for possible future pregnancy.
Brodalumab is a monoclonal antibody against human IL-17 receptor A (IL-17RA). Given its efficacy in psoriasis and its mechanism of action in psoriatic arthritis and HS, due to the patient’s non response to all the available treatment options it was decided its use on the above combination diseases11–14.
It is well known that psoriasis and HS likely share immunopathogenetic pathways, including involvement of IL-17 and TNF. Given the good clinical response to anti-IL 17 and anti-TNF drugs in psoriasis and HS treatment, investigations into this direction could represent a starting point for a new therapeutic approach for revolutionary treatment of two difficult to treat diseases.
All data underlying the results are available as part of the article and no additional source data are required.
Written informed consent for publication of their clinical details and clinical images was obtained from the patients.
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Is the background of the cases’ history and progression described in sufficient detail?
Yes
Are enough details provided of any physical examination and diagnostic tests, treatment given and outcomes?
No
Is sufficient discussion included of the importance of the findings and their relevance to future understanding of disease processes, diagnosis or treatment?
Yes
Is the conclusion balanced and justified on the basis of the findings?
Yes
Competing Interests: No competing interests were disclosed.
Reviewer Expertise: Psoriasis, HS, atopic dermatitis, biologics, epidemiology.
Is the background of the cases’ history and progression described in sufficient detail?
Partly
Are enough details provided of any physical examination and diagnostic tests, treatment given and outcomes?
No
Is sufficient discussion included of the importance of the findings and their relevance to future understanding of disease processes, diagnosis or treatment?
Partly
Is the conclusion balanced and justified on the basis of the findings?
No
Competing Interests: Dr Kanni and I both work on collaborating groups on Hidradenitis suppurativa (Athens, Greece and Dessau Germany, respectively). We published together in 2016 in JID (Journal of Investigative Dermatology). This does not affect my current review, it was objective to the best of my knowledge.
Reviewer Expertise: HS, sebocytes, acne, melanoma, allergy
Is the background of the cases’ history and progression described in sufficient detail?
Partly
Are enough details provided of any physical examination and diagnostic tests, treatment given and outcomes?
Yes
Is sufficient discussion included of the importance of the findings and their relevance to future understanding of disease processes, diagnosis or treatment?
Yes
Is the conclusion balanced and justified on the basis of the findings?
Yes
Competing Interests: Advisory Board and primary investigator for UCB and Abbvie. Do not know about the authors. These conflicts of interest did not influence my review of this manuscript.
Reviewer Expertise: Hidradenitis suppurativa, atopic dermatitis, biologics, Evidence based medicine
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