PMID- 12151469 OWN - NLM STAT- MEDLINE DCOM- 20020807 LR - 20231024 IS - 1533-4406 (Electronic) IS - 0028-4793 (Linking) VI - 347 IP - 5 DP - 2002 Aug 1 TI - Inhaled iloprost for severe pulmonary hypertension. PG - 322-9 AB - BACKGROUND: Uncontrolled studies suggested that aerosolized iloprost, a stable analogue of prostacyclin, causes selective pulmonary vasodilatation and improves hemodynamics and exercise capacity in patients with pulmonary hypertension. METHODS: We compared repeated daily inhalations of 2.5 or 5.0 microg of iloprost (six or nine times per day; median inhaled dose, 30 microg per day) with inhalation of placebo. A total of 203 patients with selected forms of severe pulmonary arterial hypertension and chronic thromboembolic pulmonary hypertension (New York Heart Association [NYHA] functional class III or IV) were included. The primary end point was met if, after week 12, the NYHA class and distance walked in six minutes were improved by at least one class and at least 10 percent, respectively, in the absence of clinical deterioration according to predefined criteria and death. RESULTS: The combined clinical end point was met by 16.8 percent of the patients receiving iloprost, as compared with 4.9 percent of the patients receiving placebo (P=0.007). There were increases in the distance walked in six minutes of 36.4 m in the iloprost group as a whole (P=0.004) and of 58.8 m in the subgroup of patients with primary pulmonary hypertension. Overall, 4.0 percent of patients in the iloprost group (including one who died) and 13.7 percent of those in the placebo group (including four who died) did not complete the study (P=0.024); the most common reason for withdrawal was clinical deterioration. As compared with base-line values, hemodynamic values were significantly improved at 12 weeks when measured after iloprost inhalation (P<0.001), were largely unchanged when measured before iloprost inhalation, and were significantly worse in the placebo group. Further significant beneficial effects of iloprost treatment included an improvement in the NYHA class (P=0.03), dyspnea (P=0.015), and quality of life (P=0.026). Syncope occurred with similar frequency in the two groups but was more frequently rated as serious in the iloprost group, although this adverse effect was not associated with clinical deterioration. CONCLUSIONS: Inhaled iloprost is an effective therapy for patients with severe pulmonary hypertension. CI - Copyright 2002 Massachusetts Medical Society FAU - Olschewski, Horst AU - Olschewski H AD - Department of Internal Medicine II, University Clinic, Giessen, Germany. FAU - Simonneau, Gerald AU - Simonneau G FAU - Galie, Nazzareno AU - Galie N FAU - Higenbottam, Timothy AU - Higenbottam T FAU - Naeije, Robert AU - Naeije R FAU - Rubin, Lewis J AU - Rubin LJ FAU - Nikkho, Sylvia AU - Nikkho S FAU - Speich, Rudolf AU - Speich R FAU - Hoeper, Marius M AU - Hoeper MM FAU - Behr, Jurgen AU - Behr J FAU - Winkler, Jorg AU - Winkler J FAU - Sitbon, Olivier AU - Sitbon O FAU - Popov, Wladimir AU - Popov W FAU - Ghofrani, H Ardeschir AU - Ghofrani HA FAU - Manes, Alessandra AU - Manes A FAU - Kiely, David G AU - Kiely DG FAU - Ewert, Ralph AU - Ewert R FAU - Meyer, Andreas AU - Meyer A FAU - Corris, Paul A AU - Corris PA FAU - Delcroix, Marion AU - Delcroix M FAU - Gomez-Sanchez, Miguel AU - Gomez-Sanchez M FAU - Siedentop, Harald AU - Siedentop H FAU - Seeger, Werner AU - Seeger W CN - Aerosolized Iloprost Randomized Study Group LA - eng PT - Clinical Trial PT - Comparative Study PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - N Engl J Med JT - The New England journal of medicine JID - 0255562 RN - 0 (Vasodilator Agents) RN - JED5K35YGL (Iloprost) SB - IM MH - Administration, Inhalation MH - Dyspnea/drug therapy/etiology MH - Exercise Tolerance/drug effects MH - Female MH - Hemodynamics/drug effects MH - Humans MH - Hypertension, Pulmonary/classification/*drug therapy/physiopathology MH - Iloprost/*administration & dosage/adverse effects MH - Male MH - Middle Aged MH - Vasodilator Agents/*administration & dosage/adverse effects MH - Walking EDAT- 2002/08/02 10:00 MHDA- 2002/08/08 10:01 CRDT- 2002/08/02 10:00 PHST- 2002/08/02 10:00 [pubmed] PHST- 2002/08/08 10:01 [medline] PHST- 2002/08/02 10:00 [entrez] AID - 347/5/322 [pii] AID - 10.1056/NEJMoa020204 [doi] PST - ppublish SO - N Engl J Med. 2002 Aug 1;347(5):322-9. doi: 10.1056/NEJMoa020204.