Safety Study of IL-7 in Recipients of a Hemopoietic Stem Cell Transplant Peripheral Blood Stem Cell Transplant

Summary

This is a phase I inter-patient dose escalation open labeled study assessing multiple doses of CYT107 in patients of at least 15 years of age, who are recipients of HLA matched ex vivo T cell depleted bone marrow or peripheral blood stem transplants. The dose escalation design is aimed at establishing the absence of significant toxicity and to define a biologically active dose in this patient population. At each dose level, eligible patients will receive 3 doses of CYT107 injected subcutaneously (under the skin of the arm, legs, or stomach) once a week for 3 weeks. Groups of three patients will be entered at each dose level of CYT107. Three dose levels are planned: 10 mcg/kg/week, 20 mcg/kg/week and 30 mcg/kg/week. Three patients must complete day 42 of the study at a dose level without a dose limiting toxicity (DLT) before there is escalation to the next dose level.

Timeline

Start

2008-03

Primary completion

—

Completion

2011-04

Publications

• Background Alpdogan O, Muriglan SJ, Eng JM, Willis LM, Greenberg AS, Kappel BJ, van den Brink MR. IL-7 enhances peripheral T cell reconstitution after allogeneic hematopoietic stem cell transplantation. J Clin Invest. 2003 Oct;112(7):1095-107. doi: 10.1172/JCI17865.
• Background Rosenberg SA, Sportes C, Ahmadzadeh M, Fry TJ, Ngo LT, Schwarz SL, Stetler-Stevenson M, Morton KE, Mavroukakis SA, Morre M, Buffet R, Mackall CL, Gress RE. IL-7 administration to humans leads to expansion of CD8+ and CD4+ cells but a relative decrease of CD4+ T-regulatory cells. J Immunother. 2006 May-Jun;29(3):313-9. doi: 10.1097/01.cji.0000210386.55951.c2.
• Perales MA, Goldberg JD, Yuan J, Koehne G, Lechner L, Papadopoulos EB, Young JW, Jakubowski AA, Zaidi B, Gallardo H, Liu C, Rasalan T, Wolchok JD, Croughs T, Morre M, Devlin SM, van den Brink MR. Recombinant human interleukin-7 (CYT107) promotes T-cell recovery after allogeneic stem cell transplantation. Blood. 2012 Dec 6;120(24):4882-91. doi: 10.1182/blood-2012-06-437236. Epub 2012 Sep 25.

Drugs

Indications