PMID- 16840400 OWN - NLM STAT- MEDLINE DCOM- 20060810 LR - 20140729 IS - 0012-3692 (Print) IS - 0012-3692 (Linking) VI - 130 IP - 1 DP - 2006 Jul TI - Immunosuppressive therapy in connective tissue diseases-associated pulmonary arterial hypertension. PG - 182-9 AB - STUDY OBJECTIVE: Immune and inflammatory mechanisms could play a significant role in pulmonary arterial hypertension (PAH) genesis or progression, especially in patients with connective tissue diseases. Immunosuppressive therapy should be better evaluated in this setting. STUDY DESIGN: Monocentric retrospective study. PATIENTS: We reviewed the clinical and hemodynamic effects of immunosuppressants administered as first-line monotherapy to 28 consecutive patients with connective tissue disease-associated PAH. INTERVENTIONS: All patients received a monthly IV bolus of cyclophosphamide, 600 mg/m2, for at least 3 months, and 22 of 28 patients received systemic glucocorticosteroids. Responders to immunosuppressive therapy were defined as patients who remained in New York Heart Association (NYHA) functional class I or II with sustained hemodynamic improvement after at least 1 year of immunosuppressive therapy without addition of prostanoids, phosphodiesterase type 5 inhibitors, or endothelin receptor antagonists. RESULTS: Eight of 28 patients (systemic lupus erythematosus [SLE], n = 5; mixed connective tissue disease [MCTD], n = 3) [29%] were responders. These patients had a significantly improved 6-min walking distance (available in five patients) and a significant improvement in hemodynamic function. No patients with systemic sclerosis responded, while 5 of 12 patients with SLE and 3 of 8 patients with MCTD did respond. Survival analysis indicated that responders had a better survival than nonresponders. Patients with a lower baseline NYHA functional class and better baseline pulmonary hemodynamics (p < 0.05) were more likely to benefit from immunosuppressive therapy. CONCLUSION: PAH associated with SLE or MCTD might respond to a treatment combining glucocorticosteroids and cyclophosphamide. FAU - Sanchez, Olivier AU - Sanchez O AD - Centre National de Reference de l'Hypertension Arterielle Pulmonaire, UPRES EA2705, Service de Pneumologie et Reanimation Respiratoire, Hopital Antoine Beclere, Assistance Publique Hopitaux de Paris, Universite Paris-Sud, Clamart, France. FAU - Sitbon, Olivier AU - Sitbon O FAU - Jais, Xavier AU - Jais X FAU - Simonneau, Gerald AU - Simonneau G FAU - Humbert, Marc AU - Humbert M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Chest JT - Chest JID - 0231335 RN - 0 (Glucocorticoids) RN - 0 (Immunosuppressive Agents) RN - 8N3DW7272P (Cyclophosphamide) SB - IM MH - Adult MH - Aged MH - Blood Pressure/drug effects MH - Connective Tissue Diseases/classification/complications/*drug therapy MH - Cyclophosphamide/*therapeutic use MH - Exercise Test/methods MH - Female MH - Glucocorticoids/*therapeutic use MH - Humans MH - Hypertension, Pulmonary/drug therapy/*etiology/physiopathology MH - Immunosuppressive Agents/*therapeutic use MH - Male MH - Middle Aged MH - Retrospective Studies MH - Severity of Illness Index EDAT- 2006/07/15 09:00 MHDA- 2006/08/11 09:00 CRDT- 2006/07/15 09:00 PHST- 2006/07/15 09:00 [pubmed] PHST- 2006/08/11 09:00 [medline] PHST- 2006/07/15 09:00 [entrez] AID - S0012-3692(15)50970-7 [pii] AID - 10.1378/chest.130.1.182 [doi] PST - ppublish SO - Chest. 2006 Jul;130(1):182-9. doi: 10.1378/chest.130.1.182.