PMID- 22858181 OWN - NLM STAT- MEDLINE DCOM- 20130415 LR - 20220409 IS - 1879-1913 (Electronic) IS - 0002-9149 (Print) IS - 0002-9149 (Linking) VI - 110 IP - 9 DP - 2012 Nov 1 TI - Frequency of edema in patients with pulmonary arterial hypertension receiving ambrisentan. PG - 1373-7 LID - S0002-9149(12)01634-7 [pii] LID - 10.1016/j.amjcard.2012.06.040 [doi] AB - Edema is a common side effect of endothelin receptor antagonists. Ambrisentan is an endothelin type A-selective endothelin receptor antagonist approved for the treatment of pulmonary arterial hypertension. We examined the clinical outcomes of patients who developed edema with and without ambrisentan treatment in 2 phase III, randomized placebo-controlled trials, ambrisentan for the treatment of pulmonary arterial hypertension: results of the ambrisentan in pulmonary arterial hypertension, randomized, double-blind, placebo-controlled, multicenter, efficacy (ARIES) study 1 and 2 (ARIES-1 and ARIES-2) (n = 393). Edema-related adverse events were extracted using broad adverse event search terms. The present post hoc analysis included 132 placebo patients and 261 ambrisentan patients. Of these patients, 14% of the placebo patients and 23% of the ambrisentan patients experienced edema-related adverse events. Overall, the patients who experienced edema tended to have a worse baseline World Health Organization (WHO) functional class (edema 76%, WHO functional class III-IV; no edema 56%, WHO functional class III-IV). In the ambrisentan patients, those with edema were older (mean age 58 +/- 13 years) and heavier (mean weight 75 +/- 19 kg) than those without edema (mean age 49 +/- 15 years; mean weight 70 +/- 17 kg). At week 12 of treatment, the ambrisentan patients had significantly increased their 6-minute walk distance (6MWD) by 34.4 m compared to the placebo patients in whom the 6MWD had deteriorated by -9.0 m (p <0.001). Among the ambrisentan patients, those without edema had a 6MWD increase of 38.9 m and those with edema had a 6MWD increase of 19.4 m. Ambrisentan significantly improved the brain natriuretic peptide levels by -34% compared to the brain natriuretic peptide levels in the placebo group that had worsened by +11% (p <0.001). Ambrisentan reduced the brain natriuretic peptide concentrations similarly in patients with and without edema. In conclusion, the present subanalysis of patients with pulmonary arterial hypertension has revealed that ambrisentan therapy provides clinical benefit compared to placebo, even in the presence of edema. CI - Published by Elsevier Inc. FAU - Shapiro, Shelley AU - Shapiro S AD - West Los Angeles Veterans Affairs Healthcare System, David Geffen University of California, Los Angeles, School of Medicine, Los Angeles, California, USA. Sshapiro@ucla.edu FAU - Pollock, David M AU - Pollock DM FAU - Gillies, Hunter AU - Gillies H FAU - Henig, Noreen AU - Henig N FAU - Allard, Martine AU - Allard M FAU - Blair, Christiana AU - Blair C FAU - Anglen, Crystal AU - Anglen C FAU - Kohan, Donald E AU - Kohan DE LA - eng GR - R01 DK069392/DK/NIDDK NIH HHS/United States PT - Clinical Trial, Phase III PT - Comparative Study PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20120802 PL - United States TA - Am J Cardiol JT - The American journal of cardiology JID - 0207277 RN - 0 (Phenylpropionates) RN - 0 (Pyridazines) RN - 114471-18-0 (Natriuretic Peptide, Brain) RN - HW6NV07QEC (ambrisentan) SB - IM MH - Adult MH - Age Factors MH - Aged MH - Analysis of Variance MH - Confidence Intervals MH - Dose-Response Relationship, Drug MH - Double-Blind Method MH - Drug Administration Schedule MH - Edema/*chemically induced/*epidemiology/physiopathology MH - Familial Primary Pulmonary Hypertension MH - Female MH - Follow-Up Studies MH - Humans MH - Hypertension, Pulmonary/diagnosis/*drug therapy MH - Incidence MH - Male MH - Middle Aged MH - Natriuretic Peptide, Brain/analysis/drug effects MH - Phenylpropionates/*administration & dosage/adverse effects MH - Pyridazines/*administration & dosage/adverse effects MH - Reference Values MH - Risk Assessment MH - Safety Management MH - Severity of Illness Index MH - Sex Factors MH - Treatment Outcome PMC - PMC4167616 MID - NIHMS626768 EDAT- 2012/08/04 06:00 MHDA- 2013/04/16 06:00 PMCR- 2014/09/18 CRDT- 2012/08/04 06:00 PHST- 2012/03/24 00:00 [received] PHST- 2012/06/13 00:00 [revised] PHST- 2012/06/13 00:00 [accepted] PHST- 2012/08/04 06:00 [entrez] PHST- 2012/08/04 06:00 [pubmed] PHST- 2013/04/16 06:00 [medline] PHST- 2014/09/18 00:00 [pmc-release] AID - S0002-9149(12)01634-7 [pii] AID - 10.1016/j.amjcard.2012.06.040 [doi] PST - ppublish SO - Am J Cardiol. 2012 Nov 1;110(9):1373-7. doi: 10.1016/j.amjcard.2012.06.040. Epub 2012 Aug 2.