Phase II Trial of Parathyroid Hormone after Double Umbilical Cord Blood Transplantation

Karen Ballen, Adam M. Mendizabal, Corey Cutler, Ioannis Politikos, Katarzyna Jamieson, Elizabeth J. Shpall, Bimalangshu R. Dey, Eyal Attar, Steven McAfee, Colleen Delaney, Philip McCarthy, Edward D. Ball, Ram Kamble, David Avigan, Richard T. Maziarz, Vincent T. Ho, John Koreth, Edwin Alyea, Robert Soiffer, John R. WingardVicki Boussiotis, Thomas R. Spitzer, Joseph H. Antin

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Transplantation of 1 or 2 umbilical cord blood products is a useful alternative stem cell source. However, the limited number of stem cells in each infusion results in slow engraftment. In mouse models, administration of parathyroid hormone (PTH) is an effective way to enhance the ability of limited numbers of hematopoietic stem cells to support hematopoiesis. In this study, patients received either a myeloablative or a reduced-intensity double umbilical cord blood transplantation, followed by PTH at 100 μg/day for 28 days. Thirteen patients (median age, 42 years) were enrolled. All patients engrafted; the median time to neutrophil and platelet engraftment of >20 × 109 cells/L was 30 days and 61 days, respectively. The incidence of grade II-IV acute GVHD was 38.5% at day 100. Four deaths occurred before day 100, prompting early study closure. No patient who received a myeloablative regimen relapsed. Overall survival at 6 months after transplantation was 62%, and disease-free survival at 2 years was 39%. At the dose and schedule studied, there was no evidence that PTH influenced blood count recovery.

Original languageEnglish (US)
Pages (from-to)1851-1858
Number of pages8
JournalBiology of Blood and Marrow Transplantation
Issue number12
StatePublished - Dec 2012


  • Cord blood
  • Engraftment
  • Transplantation

ASJC Scopus subject areas

  • Hematology
  • Transplantation


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