ORLANDO – Although current guidelines do not recommend the use of systemic steroids for treatment of psoriasis, dermatologists still prescribe them, according to data presented at the Orlando Dermatology Aesthetic and Clinical Conference.
Researchers at Wake Forest University in Winston-Salem, N.C., analyzed a national database and found that U.S. dermatologists wrote more than 90% of the nearly 660,000 systemic steroid prescriptions for psoriasis over an 11-year period.
Amir Al-Dabagh
The authors concluded that the usefulness of systemic steroids for psoriasis should be reexamined in light of their findings.
"This is an issue that has been buried for a while," said Amir Al-Dabagh, the study’s first author and a fourth-year medical student at Wake Forest University. "Everyone knows it’s there, but it’s not discussed," he said.
Systemic steroids are not recommended for treatment of psoriasis because of evidence that discontinuing the drugs could lead to a rebound flair, sometimes beyond the baseline.
In addition, there are no data that systemic steroids are safe and effective in long-term treatment of psoriasis, said Dr. Joel Gelfand, one of the authors of the American Academy of Dermatology’s psoriasis guidelines, who was not involved in the analysis.
But, in reality, physicians do prescribe systemic steroids from time to time, especially when the patients are acutely flaring, said Dr. Gelfand, of the University of Pennsylvania in Philadelphia. "The general consensus is that it’s not a good thing to do. But sometimes the practitioners are stuck, and there are no other options for patients," he said in an interview.
Also, he added, not everyone follows the guidelines.
To analyze the prescription of steroids, Mr. Al-Dabagh and his colleagues used data from the National Ambulatory Medical Care Survey (NAMCS) from 1989 to 2010. In addition to showing that 90% of the systemic steroid prescriptions for psoriasis were written by dermatologists, the results indicated that three of the nine systemic therapies prescribed were steroids. Prednisone was ranked fourth among the nine therapies, and ranked first among the three systemic steroids, followed by methylprednisolone and dexamethasone.
In addition, no significant change was observed in the use of systemic steroids over the 11-year study period.
The poster’s findings are similar to the results of a 2011 German study that showed that systemic steroids are often used to treat psoriasis, although this treatment is not recommended in the European guidelines. The majority of prescribers in the German study were general practitioners and internists in Europe (J. Dtsch. Dermatol. Ges. 2011;9:833-8).
"If the dogma were true that systemic corticosteroids are frequently associated with severe exacerbations of the disease, then with the wide use of corticosteroids both for psoriasis and for comorbidities of psoriasis, we would expect that large numbers of patients would be seen for major problems such as precipitation, worsening, or rebound of their psoriasis. However, this has not been reported in the literature," Mr. Al-Dabagh and his colleagues wrote.
Academic dermatologists only see patients who aren’t cured by the physicians who prescribe the medications, which results in a selection bias where only the worst cases are seen in academia, the researchers noted. "This phenomenon may explain how steroids may be effective even though ‘everybody knows they don’t work,’ " they added.
Dr. Steven R. Feldman, senior author of the analysis and professor of dermatology at Wake Forest University, said that he and colleagues agreed with the current guidelines, but clinical trials of steroids for psoriasis would be helpful. "Avoiding systemic steroids in psoriasis is dogma, but is not supported by a strong scientific rationale," he said.
"There are long-term side effects from chronic use of systemic steroids, but we can say that about nearly all the treatments we use. The concerns about rebound from short-term use for psoriasis may be overblown as well," he added.
The debate on the use of systemic steroids for treatment of psoriasis is ongoing. Authors of a 2012 European study tried to parse out fact from fiction regarding the treatment and the condition. "There’s a remarkable lack of literature addressing adverse effects such as rebound, pustular, or erythrodermic flares or even new occurrence of psoriasis in patients with a negative disease history," the authors wrote. "A re-evaluation of the treatment of psoriasis and/or psoriatic arthritis with systemic steroids is necessary," the authors concluded (J. Eur. Acad. Dermatol. Venereol. 2012 Jul 25 [doi: 10.1111/j.1468-3083.2012.04656.x]).
More research is needed in the form of double-blind, controlled trials, Mr. Al-Dabagh said.
Mr. Al-Dabagh had no disclosures. Dr. Gelfand had no disclosures. Dr. Feldman said he had relationships with several pharmaceutical companies, but none produced systemic steroids.