PT - JOURNAL ARTICLE AU - S Z Pavletic AU - J R Odell AU - S J Pirruccello AU - M M Ursick AU - C E Haire AU - J G Sharp AU - A Kessinger AU - L W Klassen TI - Intensive immunoablation and autologous blood stem cell transplantation in patients with refractory rheumatoid arthritis: the University of Nebraska experience. DP - 2001 Oct 01 TA - The Journal of Rheumatology PG - 13--20 VI - 64 4099 - http://www.jrheum.org/content/64/13.short 4100 - http://www.jrheum.org/content/64/13.full SO - J Rheumatol2001 Oct 01; 64 AB - Two patients with severe rheumatoid arthritis (RA) were treated with high dose chemotherapy and autologous blood stem cell transplantation. Hematopoietic stem cells mobilized readily with cyclophosphamide and granulocyte-colony stimulating factor. Both patients achieved an American College of Rheumatology (ACR) 50% response before starting high dose therapy. The transplantation regimen included 200 mg/kg cyclophosphamide and 6 doses of equine antithymocyte globulin. Transplantation was well tolerated and both patients recovered neutrophils on day 7 post-transplant. At one month post-transplant both patients had an ACR response of 80%. Both individuals relapsed at 6 months and responded well to a combination of disease modifying antirheumatic drugs that was previously ineffective. At 12 months ACR responses were 80% and 60%, respectively. The first patient developed a flare at 18 months when she was found to be hypothyroid; she regained an 80% ACR response at 24 months with therapy of hypothyroidism. The second patient progressed relentlessly 15 months post-transplant. Immunological reconstitution showed a continuous inversion of the ratio of CD4 and CD8 lymphocytes with a predominant expansion of memory T cells.