Haemopoietic stem cell transplantation in the treatment of severe autoimmune diseases 2000

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Abstract
An international meeting took place in Basel, Switzerland from 5 to 7 October 2000 involving 180 participants from 30 countries, with the aim of assessing the existing data on autologous haemopoietic stem cell transplantation (HSCT) in the treatment of severe autoimmune disease, and to decide on future trial planning. Data on 390 patients were presented: 260 from the EBMT/EULAR Basel European/Asian database, 87 from North America (55 from the IBMTR), 39 from Australia, and 4 others. The major disease categories and number of patients receiving transplant were: multiple sclerosis (MS) 127, systemic sclerosis (SSc) 72, rheumatoid arthritis (RA) 70, juvenile idiopathic arthritis (JIA) 36, systemic lupus erythematosus (SLE) 34, dermatomyositis/polymyositis (DM/PM) 5, idiopathic thrombocytopenic purpura (ITP) 7. Single or several cases of other autoimmune diseases were reported. Clinically significant responses were seen in two thirds of all the cases and in all disease categories, with a more accentuated trend towards relapse in JIA and RA. Treatment was associated with a significant morbidity and mortality. In the EULAR/EBMT database (71 centres in 22 countries), a mobilisation associated mortality of 1.5% and an overall procedure related mortality (actuarially adjusted at 12 months) of 9% (confidence interval 6 to 12%) were found, with significant variation between diseases. The North American data showed similar results. Higher mortalities were seen in SSc and systemic JIA, with only one death reported in RA. After presentation of the data and workshop discussion a consensus was reached on several aspects: prospective randomised phase III trials are now appropriate in SSc, MS, and RA. A protocol is ready for SSc (ASTIS Trial), concepts are clear for MS and RA. Further phase I and II data are required in SLE, JIA, and vasculitis. The need for continuing collection of all cases after mobilisation by the standardised EBMT and IBMTR data forms was emphasised.

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