Plasma for fractionation
Transcription
Plasma for fractionation
Autosufficienza in plasma e plasmaderivati: situazione attuale e scenari futuri Seminario AVIS, Roma 21 gennaio 2012 Appropriatezza e impiego clinico: situazione italiana e panorama internazionale Claudio Velati Società Italiana di Medicina Trasfusionale e Immunoematologia 1 The main topics • The actual plasma donation situation • The use of plasma: – clinical use – plasma for fractionation • The needs in the future • Some ethical aspects 2 The main topics • The actual plasma donation situation • The use of plasma: – clinical use – plasma for fractionation • The needs in the future • Some ethical aspects 3 Number of plasma donations by apheresis 350000 331231 330000 321287 300000 250000 218000 197400 200000 144118 150000 100000 45739 50000 0 0 AUT BEL 0 DNK 2870 FIN FRA DEU 0 0 GRC IRL 5264 ITA LUX 3257 NLD NOR Blood Transfusion in Europe, The White Book 2005. 3300 0 PRT ESP CHE 2300 SWE GBR 4 Self-sufficiency in plasma for clinical use From USA Yes No From USA From Austria Blood Transfusion in Europe, The White Book 2005. 5 Percentage of self-sufficiency in plasma derivatives 100 % 80 % 70 % 60 % 20 % 0% Blood Transfusion in Europe, The White Book 2005. 6 Plasmapheresis collections provide source plasma, including plasma with specific antibodies, for fractionation into medicinal products. In some Countries plasma for transfusion referred to as Fresh Frozen Plasma (FFP) is also collected by apheresis donation. The volume of plasma collection by apheresis per 1,000 inhabitants reflects the volume of the national plasmapheresis programs. In 30 reporting Countries on average 2.5 litres (range 0-14) of plasma per 1,000 inhabitants is collected by plasmapheresis. Apparently Austria, Bulgaria, Germany and The Netherlands stand out as Countries with a considerbly more extensive plasmapheresis programmes, with about 10 L or more of plasmapheresis plasma per 1,000 inhabitants/year. Modified from: “The Collection, Testing and Use of Blood and Blood Components in Europe (2006 Report EDQM-Council of Europe. C.L. vd Poel, M.P. Janssen, M.-E. Behr-Gross 7 Plasma collected by apheresis (L/x1000 inhabitants) 7 7 Modified from: “The Collection, Testing and Use of Blood and Blood Components in Europe (2006 Report EDQM-Council of Europe. Europe) C.L. vd Poel, M.P. Janssen, M.-E. Behr-Gross 8 Plasma collected by apheresis (L/x103) Modified from: “The Collection, Testing and Use of Blood and Blood Components in Europe (2006 Report EDQM-Council of Europe. Europe) C.L. vd Poel, M.P. Janssen, M.-E. Behr-Gross 9 The main topics • The actual plasma donation situation • The use of plasma: – clinical use – plasma for fractionation • The needs in the future • Some ethical aspects 10 Fresh Frozen Plasma (FFP) has been available since 1941 and at first was used as volume replacement. After the introduction of plasmaderivatives and hydroxyethyl starch the use of FFP has been reconsidered and its use was indicated in case of bleeding, or to prevent bleeding, in patients with altered coagulation tests. 11 12 13 14 15 Number of transfused plasma units (apheresis and separation units) 1000000 942007 900000 800000 700000 600000 498724 500000 400000 330000 300000 247409 200000 100000 169900 103000 95500 39607 BEL DNK FIN FRA DEU GRC IRL 73000 99327 3135 0 AUT 50690 36386 25000 ITA LUX NLD Blood Transfusion in Europe, The White Book 2005. NOR PRT ESP CHE SWE GBR 16 Plasma units transfused / 1000 inhabitants 17 18 17 16 16 12 14 11 12 10 8 6 10 8 7 6 8 4 6 1 4 2 0 N FI A FR RC U DE G A IT X LU D NL R NO P ES Blood Transfusion in Europe, The White Book 2005. E SW BR E CH G L PO 17 Plasma units transfused / 1000 inhabitants 31 35 28 30 20 25 15 20 15 10 9 13 8 5 10 9 6 6 7 5 0 Modified from: “The Collection, Testing and Use of Blood and Blood Components in Europe (2006 Report EDQM-Council of Europe Europe) C.L. vd Poel, M.P. Janssen, M.-E. Behr-Gross 18 IL PLASMA FRESCO CONGELATO E’ INDICATO – Nella fase acuta della coagulazione intravascolare disseminata (DIC), in presenza di diatesi emorragica. In assenza di emorragia l’impiego del plasma non è indicato. Non esiste evidenza che l’uso profilattico possa prevenire la DIC o ridurre il fabbisogno trasfusionale. – Nel trattamento della porpora trombotica trombocitopenica (P.T.T.) come liquido sostitutivo nelle procedure di plasma-exchange e/o per infusione endovenosa. – Nei deficit congeniti o acquisiti di singoli fattori della coagulazione, in presenza di emorragia, quando non siano disponibili i concentrati dei singoli fattori. – Come antagonista degli anticoagulanti orali, in presenza di manifestazioni emorragiche o in previsione di un intervento chirurgico urgente o manovre invasive ad alto rischio emorragico, una volta espletati gli altri provvedimenti terapeutici necessari (ad esempio, la somministrazione di vitamina K) Raccomandazioni per il buon uso del sangue Comitato Ospedaliero per il Buon Uso del Sangue AOVV - 2007 Total quantity of plasma used for fractionation (litres) 1600000 1400000 1200000 584744 1000000 800000 60944 600000 33317 891636 400000 20000 TOTAL 0 2200 TOTAL 470160 200000 336000 0 5500 70000 62300 DNK FIN 434456 0 217800 0 0 AUT BEL 270000 7300 FRA DEU GRC 0 IRL From fresh frozen plasma ITA LUX NLD 280000 1361 37463 NOR TOTAL 219000 80000 0 PRT 0 ESP CHE SWE GBR Part from other plasma Blood Transfusion in Europe, The White Book 2005. 20 Plasma for fractionation • In 31 reporting Countries, an average yield of 7.2 L (range 0-26 L) per 1,000 inhabitants is found of plasma for fractionation into medicinal products. • However, 6 of 31 (19%) reporting Countries deliver 15 L or more plasma per 1,000 inhabitants. • In Europe, the main supply of plasma for fractionation is recovered plasma: in 18 reporting MS, on average 70% of the plasma for fractionation is from recovered plasma (range 0-100%). Modified from: “The Collection, Testing and Use of Blood and Blood Components in Europe (2006 Report EDQM-Council of Europe. C.L. vd Poel, M.P. Janssen, M.-E. Behr-Gross) 21 Plasma for fractionation (L/x103) Modified from: “The Collection, Testing and Use of Blood and Blood Components in Europe (2006 Report EDQM-Council of Europe. Europe) C.L. vd Poel, M.P. Janssen, M.-E. Behr-Gross 22 23 The main topics • The actual plasma donation situation • The use of plasma: – clinical use – plasma for fractionation • The needs in the future • Some ethical aspects 24 Future demand for plasmaderivatives will be influenced by: • Demographics and health services improvements in emerging countries, growing acceptance, awareness and funding • New therapeutic indications • Pricing pressure • Increased competition from new manufacturers, promotional and educational activities • Plasma procurement and processing capacity 25 Projected Albumin demand based on the results of several studies Marketing Research Bureau 26 The main topics • The actual plasma donation situation • The use of plasma: – clinical use – plasma for fractionation • The needs in the future • Some ethical aspects 27 28 29 The EBA-IPFA position Section 2.11 must continue to make explicit reference to agreed international definitions for VNRBD (eg CoE, WHO, FDA, ISBT). i.e.CoE • ‘Voluntary unpaid donation shall mean the donation of blood or blood components by a person of his/her free will and without receiving payment in cash or in kind in return which could be considered a substitute for money. This also includes time off work other than that reasonably required for donation and travel. Small tokens, gratuities, refreshments and the reimbursement of direct costs and direct travel expenses are compatible with the voluntary and unpaid donation of blood.’ • FDA Status of monetary incentives’ • ‘Cash or cash equivalent Tickets or events where markets for resale exists; • transferable discounts-coupons convertible to cash; music media where market for resale exists; vouchers for free medical tests; Scholarships paid directly to students.’ 31 Final considerations (1) Homogeneous assessment of clinical needs is not yet reached: is patient under-transfused in Spain or over-transfused in Germany, Greece and Poland? EU has not yet achieved self-sufficiency in plasma and plasma derivatives. About plasmaderivatives, demand, use and needs for patients should be distinguished (WHO 2010) Wide variations in per capita use of PDMP in developed countries eg IVIg use are observed: former EU excluding UK 2007: 55 g/1000, North America: 120 g/1000. No evidence that clinical needs are not fulfilled in countries which have developed robust therapeutic evidence based systems to optimal use (eg Germany: 36 g per 1000). 32 Final considerations (2) Europe is close to self reliance with VNRBD plasma: IVIg use 2007 for 13 countries of the former EU with a total of 3.6 million L of plasma collected from European VNRBD, the level of sufficiency achieved is in the range of 80 to 86%. Getting closer to 100% sufficiency from VNRBD plasma should be further developed. Potential negative impact of paid donations are to be considered: On the donor health: plasma pools from paid US high-frequency, highvolume plasmapheresis donors showed significantly lower protein content (eg total IgG: - 24%), than pools from unpaid EU or US WB or plasmapheresis donors (R Laub et al Vox Sang 2010). On the blood system: paying donors has been shown as a potential threat to the wider supply of blood products, as many patients need both labile blood products and PDMPs. 33 Final considerations (3) EBA and IPFA continue their advocacy for developing VNRBD with coordinated blood and plasma programmes which would better meet all patients’ needs and comply with the donor health requirements and the European commitment on ethical issues and unpaid donations. Some ethical issues have to be clarified: the anti-D paradox. The USA – EU challenge is open! 34
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