Bortezomib is safe in and stabilizes pulmonary function in patients with allo-HSCT-associated pulmonary CGVHD

Manu Jain*, GRS Budinger, Borko Jovanovic, Jane Dematte, Sara Duffey, Jayesh Mehta

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Pulmonary chronic graft-versus-host disease (p-CGVHD) following allogeneic HSCT is devastating with limited proven treatments. Although sporadically associated with pulmonary toxicity, the proteasome inhibitor bortezomib may be efficacious in p-CGVHD. We sought to establish safety and tolerability of bortezomib in pilot, open-label trial of patients with p-CGVHD. The primary endpoint was adverse events. Efficacy was assessed by comparing FEV1 decline prior to p-CGVHD diagnosis to during the bortezomib treatment period. The impact on pulmonary function testing of prior long-term bortezomib treatment in multiple myeloma (MM) patients was also assessed as a safety analysis. Seventeen patients enrolled in the pilot study with a mean time to p-CGVHD diagnosis of 3.36 years (±1.88 years). Bortezomib was well tolerated without early dropouts. The median FEV1 decline prior to the diagnosis of p-CGVHD was −1.06%/month (−5.36, −0.33) and during treatment was −0.25%/month (−9.42, 3.52). In the safety study, there was no significant difference in any PFT parameter between 73 patients who received bortezomib and 68 patients who did not for MM. Thus, we conclude that bortezomib has acceptable safety and tolerability in patients with compromised pulmonary function. The efficacy of proteosomal inhibition should be assessed in a large trial of chronic p-CGVHD patients.

Original languageEnglish (US)
Pages (from-to)1124-1130
Number of pages7
JournalBone Marrow Transplantation
Volume53
Issue number9
DOIs
StatePublished - Sep 1 2018

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ASJC Scopus subject areas

  • Hematology
  • Transplantation

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