[Exogenous Cushing syndrome due to drug interaction of ritonavir and inhaled fluticasone. Report of three pediatric cases]

Arch Argent Pediatr. 2020 Jun;118(3):e278-e283. doi: 10.5546/aap.2020.e278.
[Article in Spanish]

Abstract

The increase in life expectancy with the advent of highly effective antiretroviral therapy poses challenges in terms of toxicity and drug interactions. Exogenous Cushing syndrome by interaction between ritonavir and inhaled fluticasone in children diagnosed with human immunodeficiency virus infection and chronic pulmonary pathology is rare. So far, there are 20 cases reported. Three pediatric cases are reported, with a diagnosis of human immunodeficiency virus infection and chronic pulmonary pathology who presented exogenous Cushing syndrome with inhaled fluticasone at usual doses due to drug interaction between it and ritonavir. The patients resolved the clinical picture after 2-4 months of fluticasone suspension and remain asymptomatic in the follow-up.

El incremento de la expectativa de vida con el advenimiento de la terapia antirretroviral de alta eficacia plantea desafíos en cuanto a la toxicidad e interacciones medicamentosas. El síndrome de Cushing exógeno por interacción entre ritonavir y fluticasona inhalada en niños con diagnóstico de infección por virus de la inmunodeficiencia humana y patología pulmonar crónica es infrecuente. Hasta el momento, hay 20 casos reportados. Se describen 3 casos pediátricos con diagnóstico de infección por virus de la inmunodeficiencia humana y patología pulmonar crónica que presentaron síndrome de Cushing exógeno con fluticasona inhalada en dosis habituales por la interacción medicamentosa entre esta y ritonavir. Los pacientes resolvieron el cuadro clínico luego de 2-4 meses de suspensión de la fluticasona y permanecieron asintomáticos en el seguimiento.

Keywords: Cushing syndrome; HIV; fluticasone; ritonavir.

Publication types

  • Case Reports

MeSH terms

  • Administration, Inhalation
  • Adolescent
  • Anti-HIV Agents / adverse effects*
  • Anti-HIV Agents / therapeutic use
  • Asthma / complications
  • Asthma / drug therapy*
  • Bronchodilator Agents / adverse effects*
  • Bronchodilator Agents / therapeutic use
  • Child
  • Chronic Disease
  • Cushing Syndrome / chemically induced*
  • Cushing Syndrome / diagnosis
  • Drug Interactions
  • Fluticasone / adverse effects*
  • Fluticasone / therapeutic use
  • HIV Infections / complications
  • HIV Infections / drug therapy
  • Humans
  • Lung Diseases, Interstitial / drug therapy*
  • Lung Diseases, Interstitial / etiology
  • Male
  • Ritonavir / adverse effects*
  • Ritonavir / therapeutic use

Substances

  • Anti-HIV Agents
  • Bronchodilator Agents
  • Fluticasone
  • Ritonavir

Supplementary concepts

  • Lymphoid Interstitial Pneumonia