PMID- 26341755 OWN - NLM STAT- MEDLINE DCOM- 20160114 LR - 20161125 IS - 1432-0584 (Electronic) IS - 0939-5555 (Linking) VI - 94 IP - 12 DP - 2015 Dec TI - Efficacy and safety of the thrombopoietin receptor agonist romiplostim in patients aged >/= 65 years with immune thrombocytopenia. PG - 1973-80 LID - 10.1007/s00277-015-2485-x [doi] AB - Thrombopoietin receptor agonists increase platelet counts and reduce bleeding risk in patients with immune thrombocytopenia (ITP). Studies have reported that these agents may represent a risk factor for thromboembolic events, especially in the elderly, who are at increased risk for such complications relative to younger patients. In this retrospective analysis, efficacy and safety data for romiplostim in patients with ITP aged >/=65 years versus those aged <65 years are described. Data from 3 studies (N = 159; 24.5% >/= 65 years of age) were analyzed for efficacy. Data from 13 studies (N = 1037; 28.4% >/= 65 years of age) were analyzed for adverse events (AEs). Relative risk (RR) ratios with 95% CIs were calculated for duration-adjusted incidences of AEs for romiplostim versus placebo/standard of care (SOC) in patients >/= 65 and <65 years. Slightly higher platelet response rates were seen among romiplostim-treated patients >/= 65 versus <65 years. In the safety analyses, 65 (6.3%) received placebo/SOC, 69 (6.7%) received placebo/SOC and then romiplostim, and 903 (87.1%) received romiplostim only. Duration-adjusted AE rates were similar for romiplostim versus placebo/SOC in older and younger patients. The risks for grade >/= 3 bleeding (RR 1.92; 95% CI, 0.47-7.95) and thromboembolic events (RR 3.85; 95% CI, 0.53-27.96) were numerically but not significantly higher for romiplostim versus placebo/SOC in patients >/= 65 years. Romiplostim is effective and, with the exception of nonsignificant trends showing increased risks of grade >/= 3 bleeding and thromboembolic events (a trend observed in other studies), generally well tolerated in older patients with ITP. FAU - Michel, Marc AU - Michel M AD - Henri Mondor University Hospital, Creteil, France. marc.michel@hmn.aphp.fr. AD - Department of Internal Medicine, Hopital Henri Mondor, 51 Avenue du Mal de Lattre de Tassigny, 94 000, Creteil, France. marc.michel@hmn.aphp.fr. FAU - Wasser, Jeffrey AU - Wasser J AD - University of Connecticut School of Medicine, Farmington, CT, USA. FAU - Godeau, Bertrand AU - Godeau B AD - Henri Mondor University Hospital, Creteil, France. FAU - Aledort, Louis AU - Aledort L AD - Mount Sinai School of Medicine, New York, NY, USA. FAU - Cooper, Nichola AU - Cooper N AD - Catherine Lewis Centre, Hammersmith Hospital, London, UK. FAU - Tomiyama, Yoshiaki AU - Tomiyama Y AD - Osaka University Hospital, Osaka, Japan. FAU - Khellaf, Mehdi AU - Khellaf M AD - Henri Mondor University Hospital, Creteil, France. FAU - Wang, Xuena AU - Wang X AD - Amgen Inc., Thousand Oaks, CA, USA. LA - eng PT - Clinical Trial, Phase III PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20150904 PL - Germany TA - Ann Hematol JT - Annals of hematology JID - 9107334 RN - 0 (Receptors, Fc) RN - 0 (Receptors, Thrombopoietin) RN - 0 (Recombinant Fusion Proteins) RN - 143641-95-6 (MPL protein, human) RN - 9014-42-0 (Thrombopoietin) RN - GN5XU2DXKV (romiplostim) SB - IM MH - Aged MH - Aged, 80 and over MH - Female MH - Hemorrhage/chemically induced/epidemiology MH - Humans MH - Incidence MH - Male MH - Purpura, Thrombocytopenic, Idiopathic/*drug therapy/epidemiology MH - Receptors, Fc/*administration & dosage MH - Receptors, Thrombopoietin/*agonists MH - Recombinant Fusion Proteins/*administration & dosage/adverse effects MH - Risk Factors MH - Thrombopoietin/*administration & dosage/adverse effects OTO - NOTNLM OT - Efficacy OT - Geriatric OT - Immune thrombocytopenia OT - Romiplostim OT - Safety OT - Thrombopoietin receptor agonist EDAT- 2015/09/06 06:00 MHDA- 2016/01/15 06:00 CRDT- 2015/09/06 06:00 PHST- 2015/04/21 00:00 [received] PHST- 2015/08/17 00:00 [accepted] PHST- 2015/09/06 06:00 [entrez] PHST- 2015/09/06 06:00 [pubmed] PHST- 2016/01/15 06:00 [medline] AID - 10.1007/s00277-015-2485-x [pii] AID - 10.1007/s00277-015-2485-x [doi] PST - ppublish SO - Ann Hematol. 2015 Dec;94(12):1973-80. doi: 10.1007/s00277-015-2485-x. Epub 2015 Sep 4.