Cidofovir for BK virus-associated hemorrhagic cystitis: A retrospective study

Simone Cesaro, Hans H. Hirsch, Maura Faraci, Joanna Owoc-Lempach, Angela Beltrame, Andrea Tendas, Loannis Baltadakis, Jean Hughes Dalle, Yener Koc, Jacek Toporski, Jan Styczynski, M. Akif Yesilipek, Werner Heinz, Maurizio Caniglia, Jelena Rascon, Axel A. Fauser, Mauricette Michallet, Lucia Lopez-Corral, Stefan Neuburger, Gloria TridelloHerman Einsele

Research output: Contribution to journalArticlepeer-review


Background. BK virus-associated hemorrhagic cystitis (BKV-HC) is a severe complication after allogeneic hematopoietic stem cell transplantation (HSCT), but antiviral treatment for this condition has not been evaluated. Methods. We conducted a retrospective survey on the safety and outcome of cidofovir treatment for patients with BKV-HC in centers affiliated with the European Group for Blood and Marrow Transplantation. Results. From 1 April 2004 to 31 December 2007, 62 patients received a diagnosis of BKV-HC after a median interval of 35 days after HSCT (range, 3-577 days). Fifty-seven patients (92%) received intravenous cidofovir, whereas 5 patients received cidofovir intravesically. Complete response (CR) was recorded in 38 (67%) of 57 patients with HC treated with intravenous cidofovir, whereas partial response (PR) was documented in 7 patients (12%). CR was documented in 3 patients and PR in 1 patient with HC treated with intravesical cidofovir. A reduction of 1-3 logs in BKV load was documented in 8 of the 10 patients achieving CR. Mild-to-moderate toxic effects were recorded in 18 of 57 patients who received intravenous cidofovir administration. In a multivariate analysis, the factors significantly associated with response to cidofovir were the stem cell source (P = .01) and the use of total body irradiation (P = .03). After a median follow-up of 287 days, overall survival and total treatment- related mortality rates were 63% and 40% for patients achieving CR, compared with 14% and 72% for patients with PR or no response to cidofovir, respectively (P <.001 and P = .001, respectively). Conclusions. Cidofovir may be a potentially effective therapy for BKV-HC, but evidence supporting its use requires randomized controlled trials.

Original languageEnglish
Pages (from-to)233-240
Number of pages8
JournalClinical Infectious Diseases
Issue number2
Publication statusPublished - Jul 15 2009

ASJC Scopus subject areas

  • Infectious Diseases
  • Microbiology (medical)


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