Pediatric Nephrology

, Volume 24, Issue 4, pp 845–849

Efficacy and safety of lisinopril for mild childhood IgA nephropathy: a pilot study

  • Koichi Nakanishi
  • Kazumoto Iijima
  • Kenji Ishikura
  • Hiroshi Hataya
  • Midori Awazu
  • Mayumi Sako
  • Masataka Honda
  • Norishige Yoshikawa
  • for the Japanese Pediatric IgA Nephropathy Treatment Study Group
Brief Report

DOI: 10.1007/s00467-008-1006-8

Cite this article as:
Nakanishi, K., Iijima, K., Ishikura, K. et al. Pediatr Nephrol (2009) 24: 845. doi:10.1007/s00467-008-1006-8

Abstract

Even in children with mild immunoglobulin (Ig)A nephropathy (IgA-N) showing minimal/focal mesangial proliferation, persistent proteinuria seems to be a risk factor for progression of the disease, indicating the need for an effective and safe treatment even in such cases. Studies carried out to date have indicated that angiotensin-converting enzyme inhibitors (ACEIs) reduce urinary protein excretion and preserve renal function in adult IgA-N. However, no prospective study of ACEI only for childhood IgA-N has yet been carried out. In this prospective single-arm pilot trial, we administered lisinopril (0.4 mg/kg per day) as therapeutic treatment to 40 children with mild IgA-N with proteinuria [morning urinary protein/creatinine ratio (uP/Cr) ≥ 0.2 g/g]. Thirty-three patients reached the primary endpoint (uP/Cr < 0.2) during the 2-year treatment period. The cumulative disappearance rate of proteinuria determined by the Kaplan–Meier method was 80.9%. Mean uP excretion was reduced from 0.40 to 0.18 g/m2/day (p < 0.0001). Of the 40 patients treated, five (12.5%) showed dizziness, and four of these five needed the lisinopril dose reduced. However, lisinopril therapy was continued in all patients during the 2-year treatment period. No other side effect, such as cough, was observed. We conclude that the efficacy and safety of lisinopril is seemingly acceptable for the treatment of children with mild IgA-N.

Keywords

Angiotensin-converting enzyme inhibitorFocal mesangial proliferationMinimal changeProteinuriaRenin-angiotensin systemUrinary protein to creatinine ratioUrinary protein excretion

Copyright information

© IPNA 2008

Authors and Affiliations

  • Koichi Nakanishi
    • 1
  • Kazumoto Iijima
    • 2
  • Kenji Ishikura
    • 3
  • Hiroshi Hataya
    • 3
  • Midori Awazu
    • 4
  • Mayumi Sako
    • 1
  • Masataka Honda
    • 3
  • Norishige Yoshikawa
    • 1
  • for the Japanese Pediatric IgA Nephropathy Treatment Study Group
  1. 1.Department of PediatricsWakayama Medical UniversityWakayama CityJapan
  2. 2.Department of PediatricsKobe University Graduate School of MedicineKobeJapan
  3. 3.Department of Pediatric NephrologyTokyo Metropolitan Kiyose Children’s HospitalKiyose, TokyoJapan
  4. 4.Department of PediatricsKeio University School of MedicineShinjyuku, TokyoJapan