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Background: We assessed the efficacy and safety of tadalafil, a phosphodiesterase type 5 inhibitor, in patients with heart failure with preserved ejection fraction and combined postcapillary and precapillary pulmonary hypertension., Methods: In the double-blind PASSION study (Phosphodiesterase-5 Inhibition in Patients With Heart Failure With Preserved Ejection Fraction and Combined Post- and Pre-Capillary Pulmonary Hypertension), patients with heart failure with preserved ejection fraction and combined postcapillary and precapillary pulmonary hypertension were randomized 1:1 to receive tadalafil at a target dose of 40 mg or placebo. The primary end point was the time to the first composite event of adjudicated heart failure hospitalization or all-cause death. Secondary end points included all-cause mortality and improvements in New York Heart Association functional class or ≥10% improvement in 6-minute walking distance from baseline., Results: Initially targeting 372 patients, the study was terminated early because of disruption in study medication supply. At that point, 125 patients had been randomized (placebo: 63; tadalafil: 62,). Combined primary end-point events occurred in 20 patients (32%) assigned to placebo and 17 patients (27%) assigned to tadalafil (hazard ratio, 1.02 [95% CI, 0.52-2.01]; P =0.95). There was a possible signal of higher all-cause mortality in the tadalafil group (hazard ratio, 5.10 [95% CI, 1.10-23.69]; P =0.04). No significant between-group differences were observed in other secondary end points. Serious adverse events occurred in 29 participants (48%) in the tadalafil group and 35 (56%) in the placebo group., Conclusions: The PASSION trial, terminated prematurely due to study medication supply disruption, does not support tadalafil use in patients with heart failure with preserved ejection fraction and combined postcapillary and precapillary pulmonary hypertension, with potential safety concerns and no observed benefits in primary and secondary end points., Registration: URL: https://www.clinicaltrialsregister.eu/; Unique identifier: 2017-003688-37. URL: https://drks.de; Unique identifier: DRKS -DRKS00014595., Competing Interests: Dr Hoeper has received fees for lectures and/or consultations from Acceleron, Actelion, AOP Health, Bayer, Ferrer, GossamerBio, Janssen, Keros, and MSD. Max Wissmüller has received lecture fees from Janssen. Hanno Leuchte has received fees for consultations and/or lectures from Acceleron, Jansse-Cilag, Bayer, Boehringer-Ingelheim, Ferrer, MSD, and Pfizer. Michael Halank has received fees for lectures and/or consultations from AstraZeneca, Janssen-Cilag, and MSD. In addition, he has received support for attending meetings and/or travel from AOP Health and Janssen-Cilag. Hans-Jürgen Seyfarth has received fees for lectures and/or consultations from Janssen-Cilag and MSD. Stephan Baldus has received fees for lectures and/or consultations from Abbott, Edwards, Jenavalve, AstraZeneca, Bayer, Daiicho Sankyo, and Amgen, as well as research grants from Abbott, AstraZeneca, and Daiichi Sankyo. Johann Bauersachs has received fees for lectures and/or consultations from Amgen, AstraZeneca, Bayer, BMS, Boehringer Ingelheim, Cardior, Corvia, CVRx, Edwards, Norgine, Novartis, Pfizer, Roche and Vifor. In addition, institutional grants have been provided by Abiomed, CVRx, Norgine, Roche, and Zoll. He holds patents for microRNA and downstream targets for diagnostics and therapeutic purposes (PCT/EP2007/008772 and PCT/EP2009/051986). Michael Böhm is supported by the Deutsche Forschungsgemeinschaft (German Research Foundation; TTR 219, project No. 322900939) and reports personal fees from Abbott, Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, Cytokinetics, Medtronic, Novartis, ReCor, Servier and Vifor. Hossein-Ardeschir Ghofrani has received honoraria for consultations and/or speaking at conferences from Bayer HealthCare AG, Actelion, Encysive, Pfizer, Ergonex, Lilly, and Novartis. He is member of the Advisory Board for Acceleron, Bayer HealthCare AG, Pfizer, GSK, Actelion, Lilly, Merck, Encysive, and Ergonex. He has also received governmental grants from the German Research Foundation, Excellence Cluster Cardiopulmonary Research, State Government of Hessen, and the German Ministry for Education and Research. Stavros Konstantinides reports personal lecture/advisory fees and research grants to his institution from Bayer AG, Boston Scientific, Daiichi-Sankyo, LumiraDx, and Penumbra, as well as personal lecture/advisory fees from MSD and Pfizer–Bristol-Myers Squibb. Karen M. Olsson has received fees for lectures and/or consultations from Acceleron, Actelion, Bayer, Ferrer, GSK, Janssen, MSD, Pfizer, and United Therapeutics. Rolf Wachter has received fees for lectures and/or consultation from AstraZeneca, Bayer, Boehringer Ingelheim, Bristol Myers Squibb, Daiichi Sankyo, Medtronic, Novartis, Pfizer, Pharmacosmo, Sciarc, Servier, and Vifor. His institution has received research grants from Deutsche Forschungsgemeinschaft, Bundesministerium für Bildung und Forschung, European Union, and Medtronic. Carolyn S.P. Lam is supported by a Clinician Scientist Award from the National Medical Research Council of Singapore; has received research support from NovoNordisk and Roche Diagnostics; has served as consultant or on the Advisory Board/ Steering Committee/ Executive Committee for Alleviant Medical, Allysta Pharma, AnaCardio AB, Applied Therapeutics, AstraZeneca, Bayer, Biopeutics, Boehringer Ingelheim, Boston Scientific, Bristol Myers Squibb, CardioRenal, Cytokinetics, Darma Inc, EchoNous Inc, Eli Lilly, Impulse Dynamics, Intellia Therapeutics, Ionis Pharmaceutical, Janssen Research & Development LLC, Medscape/WebMD Global LLC, Merck, Novartis, Novo Nordisk, Prosciento Inc, Quidel Corp, Radcliffe Group Ltd, Recardio Inc, ReCor Medical, Roche Diagnostics, Sanofi, Siemens Healthcare Diagnostics, and Us2.ai; and serves as cofounder and non–executive director of Us2.ai. Stephan Rosenkranz has received fees for lectures and/or consultations from Abbott, Acceleron, Actelion, Aerovate, AOP, AstraZeneca, Bayer, Boehringer-Ingelheim, Edwards, Ferrer, Gossamer, Janssen, MSD, and United Therapeutics. His institution has received research grants from Actelion, AstraZeneca, Bayer, Janssen, and Lempo. The other authors report no conflicts.

Background: Among patients with pulmonary arterial hypertension (PAH), acute vasoreactivity testing during right heart catheterization may identify acute vasoresponders, for whom treatment with high-dose calcium channel blockers (CCBs) is recommended. However, long-term outcomes in the current era remain largely unknown. We sought to evaluate the implications of acute vasoreactivity response for long-term response to CCBs and other outcomes., Methods: Patients diagnosed with PAH between January 1999 and December 2018 at 15 pulmonary hypertension centers were included and analyzed retrospectively. In accordance with current guidelines, acute vasoreactivity response was defined by a decrease of mean pulmonary artery pressure by ≥10 mm Hg to reach <40 mm Hg, without a decrease in cardiac output. Long-term response to CCBs was defined as alive with unchanged initial CCB therapy with or without other initial PAH therapy and World Health Organization functional class I/II and/or low European Society of Cardiology/European Respiratory Society risk status at 12 months after initiation of CCBs. Patients were followed for up to 5 years; clinical measures, outcome, and subsequent treatment patterns were captured., Results: Of 3702 patients undergoing right heart catheterization for PAH diagnosis, 2051 had idiopathic, heritable, or drug-induced PAH, of whom 1904 (92.8%) underwent acute vasoreactivity testing. A total of 162 patients fulfilled acute vasoreactivity response criteria and received an initial CCB alone (n=123) or in combination with another PAH therapy (n=39). The median follow-up time was 60.0 months (interquartile range, 30.8-60.0), during which overall survival was 86.7%. At 12 months, 53.2% remained on CCB monotherapy, 14.7% on initial CCB plus another initial PAH therapy, and the remaining patients had the CCB withdrawn and/or PAH therapy added. CCB long-term response was found in 54.3% of patients. Five-year survival was 98.5% in long-term responders versus 73.0% in nonresponders. In addition to established vasodilator responder criteria, pulmonary artery compliance at acute vasoreactivity testing, low risk status and NT-proBNP (N-terminal pro-B-type natriuretic peptide) levels at early follow-up correlated with long-term response and predicted survival., Conclusions: Our data display heterogeneity within the group of vasoresponders, with a large subset failing to show a sustained satisfactory clinical response to CCBs. This highlights the necessity for comprehensive reassessment during early follow-up. The use of pulmonary artery compliance in addition to current measures may better identify those likely to have a good long-term response., Competing Interests: Disclosures Dr Gerhardt reports remuneration for lectures from Actelion, Bayer, Janssen, and MSD, and grants to the institution from Actelion, Bayer, and Janssen. E. Fiessler reports no disclosures. Dr Olsson reports fees for lectures or consultations from Acceleron, Actelion, Bayer, Janssen, United Therapeutics, MSD, GSK, and Pfizer. Dr Kayser reports no disclosures. Dr Kovacs reports personal fees for lectures or consultancy from Actelion, Bayer, GSK, MSD, Novartis, Pfizer, Chiesi, and Boehringer-Ingelheim. Dr Gall reports fees for lectures or consultancy from Actelion, AstraZeneca, Bayer, BMS, GSK, Janssen-Cilag, Lilly, MSD, Novartis, OMT, Pfizer, and United Therapeutics. Dr Ghofrani reports personal fees and consultancy fees from Actelion, Bayer, GlaxoSmithKline, Novartis, and Pfizer; other from Bellerophon Pulse Technologies; and consultancy fees from MSD. Dr Eslam reports no disclosures. Dr Lang reports remuneration for lectures or consultancy from Actelion, AOP Orphan, AstraZeneca, Bayer-Schering, Cordis, Daiichi-Sankyo, Ferrer, Neutrolis, Janssen, and United Therapeutics. N. Benjamin reports fees for lectures from Actelion, Bayer, MSD, and Janssen. Dr Grünig reports fees for lectures or consultations from Actelion, Bayer, GSK, Janssen, MSD, Pfizer, and United Therapeutics. Dr Halank reports remuneration for consultancy or lectures from Acceleron, Actelion, AstraZeneca, Bayer, BerlinChemie, GSK, Janssen, MSD, and Novartis. Dr Lange reports personal fees for lectures or consultancy from Acceleron Pharma, Actelion, Bayer, GSK, Janssen-Cilag, MSD, Pfizer, and United Therapeutics; and grants to the institution from Acceleron Pharma, Actelion, Bayer, Bellerophon, Gilead, Janssen-Cilag, Pfizer, and United Therapeutics. Dr Ulrich reports grants from Swiss National Science Foundation, Zurich Lung, Swiss Lung, and Orpha Swiss; and grants and personal fees from Actelion, Johnson & Johnson, and MSD. Dr Leuchte reports fees for lectures or consultancy from Actelion, Bayer, GSK, Merck, and Pfizer. Dr Held reports personal fees for lectures or consultancy from Actelion, AstraZeneca, Bayer, Berlin Chemie, Boehringer, GSK, Janssen, MSD, Novartis, OMT, Pfizer, and United Therapeutics. Dr Klose reports speaker or consultancy fees from Actelion, Bayer, Berlin Chemie, GSK, MSD, Novartis, Pfizer, and United Therapeutics. Dr Ewert reports lecture fees from Actelion, AstraZeneca, Bayer, and OMT; and industry-sponsored grants from Actelion and OMT. Dr Wilkens reports personal fees from Actelion, Bayer, Biotest, Boehringer, GSK, Pfizer, and Roche. Dr Pizarro reports honoraria for lectures from Actelion and Janssen. Dr Skowasch reports honoraria for lectures and consultancy from Actelion and Janssen. Dr Wissmüller reports remunerations for lectures from Janssen. Dr Hellmich reports no disclosures. Dr Olschewski reports remuneration for lectures or consultancy or grants to the institution from Actelion, Bayer, Belerophon, Boehringer, GSK, Inventiva, Janssen, Menarini, MSD, Novartis, Pfizer, and Roche. Dr Hoeper reports fees for consultations or lectures from Acceleron, Actelion, Bayer, Janssen, MSD, and Pfizer. Dr Rosenkranz reports remuneration for lectures or consultancy from Abbott, Acceleron, Actelion, Aerovate, Altavant, AOP, AstraZeneca, Bayer, BMS, Boehringer-Ingelheim, Edwards, Ferrer, Gossamer, Janssen, MSD, OMT, Pfizer, United Therapeutics, and Vifor; and grants to the institution from Actelion, AstraZeneca, Bayer, and Janssen.

Competing Interests: Die Autorinnen/Autoren geben an, dass kein Interessenkonflikt besteht.

Background: Riociguat in Patients with Symptomatic Pulmonary Hypertension associated with Idiopathic Interstitial Pneumonias (RISE-IIP), a randomized, controlled, phase 2b trial of riociguat for pulmonary hypertension associated with idiopathic interstitial pneumonia, was terminated early due to increased mortality in riociguat-treated patients. Baseline characteristics of enrolled patients demonstrated a low diffusing capacity of the lung for carbon monoxide (DL CO ) with preserved lung volumes at baseline, suggesting the presence of combined pulmonary fibrosis and emphysema (CPFE) in some patients. This post hoc analysis of RISE-IIP was undertaken to explore lung morphology, assessed by high-resolution computed tomography, and associated clinical outcomes., Methods: Available baseline/pre-baseline high-resolution computed tomography scans were reviewed centrally by 2 radiologists. The extent of emphysema and fibrosis was retrospectively scored and combined to provide the total CPFE score., Results: Data were available for 65/147 patients (44%), including 15/27 fatal cases (56%). Of these, 41/65 patients (63%) had CPFE. Mortality was higher in patients with CPFE (12/41; 29%) than those without (3/24; 13%). Fourteen patients with CPFE had emphysema > fibrosis (4 died). No relationship was observed between CPFE score, survival status, and treatment assignment. A low DL CO , short 6-min walking distance, and high forced vital capacity:DL CO ratio at baseline also appeared to be risk factors for mortality., Conclusions: High parenchymal lung disease burden and the presence of more emphysema than fibrosis might have predisposed patients with pulmonary hypertension associated with idiopathic interstitial pneumonia to poor outcomes in RISE-IIP. Future studies of therapy for group 3 pulmonary hypertension should include centrally adjudicated imaging for morphologic phenotyping and disease burden evaluation during screening., (Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.)

Pulmonary hypertension (PH) can be diagnosed in the context of connective tissue diseases (CTD) as well as in elderly patients with multiple comorbidities. A correct clinical differential diagnosis and classification is essential before adequate therapeutic decisions can be made. Differential diagnosis of PH in CTD comprises associated pulmonary arterial hypertension (APAH), group 2 or 3 PH (PH arising from left heart or chronic lung disease), chronic thromboembolic PH (PH) and group 5 (e. g. in the context of terminal renal insufficiency). This is also true of elderly patients in whom the decision has to be made if the increasing number of coincident diseases lead to PH or have to be interpreted as comorbidities. In this manuscript, the differential diagnosis of PH is elucidated, focusing on CTD, in the context of left heart disease and chronic lung disease. Furthermore, criteria are presented facilitating an objective approach in this context., Competing Interests: Hanno Leuchte erhielt innerhalb der letzten 5 Jahre Honorar für Vorträge und Beratungen sowie Sponsoring von Vortragsveranstaltungen von Actelion, AstraZeneca, Bayer Healthcare, Boehringer Ingelheim, GSK, MSD, Novartis und OMT.Michael Halank erhielt Honorar für Fortbildungsveranstaltungen und für Beratungen, Kostenübernahme für Kongressreisen/Unterkunft und für Tagungsspesen von Acceleron, Actelion, AstraZeneca, Bayer, BERLIN CHEMIE, GSK, MSD, Novartis und OMT.Matthias Held erhielt Honorare für Vorträge, Beratung und Reisekostenunterstützung zu Veranstaltungen von Actelion, Bayer Healthcare, Berlin Chemie, Boehringer Ingelheim, GSK, MSD, Novartis, Pfizer, United Therapeutics.Ralf Ewert hat bezahlte wissenschaftliche Vorträge für Actelion, Janssen-Cilag, GSK, Bayer Vital, OMT, United Therapeutics, AstraZeneca, Pfizer gehalten. Es wurden Honorare für die Mitarbeit im Advisory Board der genannten Firmen gezahlt. Finanzielle Projektförderung erfolgte durch Actelion, OMT und Boehringer Ingelheim.Hans Klose erhielt Honorare für Vorträge und/oder Beratungstätigkeit von Actelion, Janssen-Cilag, MSD und OMT GmbH, GSK, Novartis, Astra Zeneca, Chiesi, Berlin Chemie. Tobias Lange erhielt Honorare für Vorträge und/oder Beratungstätigkeit von Acceleron Pharma, Actelion, BMS, Janssen-Cilag, MSD und OMT GmbH.Joachim Meyer: relevante Interessenkonflikte der vergangenen drei Jahre: Fa. Actelion Pharmaceutic als Referentenhonorar, 2019.Dirk Skowasch erhielt Honorare für Vorträge und Beratungstätigkeit von Actelion/Janssen-Cilag.Heinrike Wilkens erhielt Honorare für Vorträge und/oder Beratertätigkeit von Actelion, Janssen-Cilag, Bayer, Biotest, Boehringer-Ingelheim, GSK, MSD, Pfizer und Roche.Hans-Jürgen Seyfarth erhielt in den letzten 3 Jahren Vortragshonorare von Janssen/Actelion und GSK sowie Beraterhonorare von Janssen/Actelion., (Thieme. All rights reserved.)

At the 6th World Symposium on Pulmonary Hypertension (WSPH), which took place from February 27 until March 1, 2018 in Nice, scientific progress over the past 5 years in the field of pulmonary hypertension (PH) was presented by 13 working groups. The results of the discussion were published as proceedings towards the end of 2018. One of the major changes suggested by the WSPH was the lowering of the diagnostic threshold for PH from ≥ 25 to > 20 mmHg mean pulmonary arterial pressure, measured by right heart catheterization at rest. In addition, the pulmonary vascular resistance was introduced into the definition of PH, which underlines the importance of cardiac output determination at the diagnostic right heart catheterization.In this article, we discuss the rationale and possible consequences of a changed PH definition in the context of the current literature. Further, we provide a current overview on non-invasive and invasive methods for diagnosis, differential diagnosis, and prognosis of PH, including exercise tests., Competing Interests: T. J. Lange erhielt Honorare für Vorträge und/oder Beratungstätigkeit von Acceleron Pharma, Actelion, BMS, Janssen-Cilag, MSD und OMT GmbH.R. Ewert erhielt Forschungsunterstützung von OMT, Boehringer Ingelheim, Janssen. Er hat bezahlte wissenschaftliche Vorträge für Actelion, Janssen, OMT, Novartis, AstraZeneca, Boehringer Ingelheim, Bayer Vital und GSK gehalten. Teilnahme an bezahlten Advisory Boards für Actelion, OMT, GS werden angegeben.M. Halank erhielt Honorar für Fortbildungsveranstaltungen und für Beratungen, Kostenübernahme für Kongressreisen/Unterkunft undfür Tagungsspesen von Acceleron, Actelion, AstraZeneca, Bayer, Berlin Chemie, GSK, MSD, Novartis und OMT.H. Klose erhielt Honorare für Vorträge und/oder Beratungstätigkeit von Actelion, Janssen-Cilag, MSD und OMT GmbH, GSK, Novartis,Astra Zeneca, Chiesi, Berlin Chemie.H. Leuchte erhielt innerhalb der letzten 5 Jahre Honorar für Vorträge und Beratungen sowie Sponsoring von Vortragsveranstaltungen von Actelion, AstraZeneca, Bayer Healthcare, Boehringer Ingelheim, GSK, MSD, Novartis und OMT.F. J. Meyer erhielt Referentenhonorare von Actelion.H.-J. Seyfarth erhielt Honorare von Actelion für Vorträge und Beratertätigkeit sowie von GSK und Bayer für Vorträge.D. Skowasch erhielt Honorare für Vorträge und Beratungstätigkeit von Actelion/Janssen-Cilag.H. Wilkens erhielt Honorare für Vorträge und/oder Beratertätiigkeit von Actelion, Janssen-Cilag, Bayer, Biotest, Boehringer-Ingelheim, GSK, MSD, Pfizer und Roche.M. Held erhielt Honorare für Vorträge, Beratung und Reisekostenunterstützung zu Veranstaltungen von Actelion, Bayer Healthcare, Berlin Chemie, Boehringer Ingelheim, GSK, MSD, Novartis, Pfizer, United Therapeutics.Die anderen Autorinnen/Autoren geben an, dass kein Interessenkonflikt besteht., (Thieme. All rights reserved.)

The ESC/ERS guidelines (published at the end of 2015) and other international recommendations defined pulmonary hypertension (PH) by an invasively measured mean pulmonary arterial pressure (mPAP) ≥ 25 mmHg at rest. At the 6 th World Symposium on Pulmonary Hypertension in Nice a modification of this hemodynamic definition in the sense of lowering the threshold to > 20 mmHg was proposed. A pulmonary vascular resistance (PVR) ≥ 3 Wood units (WU) is additionally required for the diagnosis of pre-capillary PH. This modification must be critically reviewed with regard to the underlying rationale and possible consequences. Therefore, a detailed explanation is required. In particular, it must be made clear that this change currently has no influence on the evidence-based and approval-compliant prescription of drugs for the targeted therapy of pulmonary arterial hypertension (PAH)., Competing Interests: S. Rosenkranz: Honorare für Vorträge und/oder Beratertätigkeiten von Abbott, Actelion, Arena, Bayer, Ferrer, GSK, MSD, Novartis, Pfizer und United Therapeutics. Forschungsunterstützung an Institutionen von Actelion, Bayer, Novartis, Pfizer und United Therapeutics. G.P. Diller: Forschungsunterstützung und/oder Konferenz-Teilnahme und/oder Honorare für Vorträge und/oder Beratertätigkeit von Actelion, Pfizer, Daiichi-Sankyo, AOP Orphan Therapeuticals. D. Dumitrescu: Honorare für Vorträge und/oder Beratertätigkeiten von Actelion, Bayer, GSK, MSD, Novartis, Pfizer, Servier. Forschungsunterstützung an Institution von Actelion. R. Ewert: Honorare für Vorträge und/oder Beratertätigkeiten von Actelion, Bayer, GSK, Merck, OMT, Pfizer, United Therapeutics. H.A. Ghofrani: Honorare für Vorträge und/oder Konsultationen von Actelion, Bayer, Gilead, GSK, MSD, Novartis, Pfizer und United Therapeutics. E. Grünig: Honorare für Beratertätigkeiten und/oder Vorträge von Actelion, Bayer, GSK, Novartis, Pfizer und United Therapeutics. M. Halank: Honorare für Vorträge und/oder Beratertätigkeiten von Actelion, AOP orphan/OMT, Bayer, Gilead, GSK, MSD, Novartis und Pfizer. M. Held: Honorare für Vorträge und/oder Beratertätigkeiten von Actelion, Bayer, Berlin Chemie, Boehringer, GSK, MSD, Novartis, Pfizer, United Therapeutics. H. Kaemmerer: Forschungsunterstützung und/oder Konferenz-Teilnahme und/oder Honorare für Vorträge und/oder Beratertätigkeit von Actelion, Bayer, Pfizer. H. Klose: Honorare für Vorträge und/oder Beratertätigkeiten und Kongressteilnahmeunterstützung von Actelion, Bayer, MSD, GSK, UT, Novartis, OMT und Pfizer; Forschungsunterstützung von GSK, Actelion und Bayer. G. Kovacs: Honorare für Vorträge und/oder Beratertätigkeiten von Actelion, Bayer, GSK, MSD, Novartis, Pfizer, Chiesi, Boehringer-Ingelheim. S. Konstantinides: Honorare für Vorträge und/oder Beratertätigkeiten von Actelion, Bayer, Boehringer. I.M. Lang: Honorare für Beratertätigkeiten und/oder Vorträge von Actelion, AOP Orphan, Astra-Zeneca, Bayer-Schering, Cordis, Daiichi-Sankyo, Edwards, GSK, Medtronic, Novartis, Pfizer, Servier, United Therapeutics. T.J. Lange: Honorare für Vorträge und/oder Beratertätigkeiten und/oder Forschungsunterstützung an Institutionen von Actelion, AOP orphan/OMT, Bayer, GSK, Pfizer and United Therapeutics. H. Leuchte: Honorare für Vorträge und/oder Beratertätigkeiten von Actelion, Bayer, GSK, Merck, und Pfizer. E. Mayer: Honorare für Vorträge und/oder Beratertätigkeiten von Actelion, Bayer, MSD und Pfizer. A. Olschewski: Honorare für Vorträge und/oder Beratertätigkeiten und/oder Forschungsunterstützung an Institutionen von Bayer, GSK, Pfizer. H. Olschewski: Honorare für Vorträge und/oder Beratertätigkeiten und/oder Forschungsunterstützung an Institutionen von Actelion, Bayer, Belerophon, Boehringer, GSK, Menarini, MSD, Novartis, Pfizer, Roche. K.M. Olsson: Honorare für Vorträge und/oder Beratertätigkeiten von Actelion, Bayer, GSK, Pfizer und United Therapeutics. C. Opitz: Keine persönlichen Einkünfte als mögliche Interessenkonflikte. R.T. Schermuly: Honorare für Vorträge und/oder Beratertätigkeiten und/oder Forschungsunterstützung an Institutionen von Bayer, Gilead, MSD, Novartis, United Therapeutics. W. Seeger: Honorare für Vorträge und/oder Beratertätigkeiten und/oder Forschungsunterstützung an Institutionen von Actelion, Bayer, Pfizer, Novartis. H. Wilkens: Honorare für Beratertätigkeiten und/oder Vorträge von Actelion, Bayer, Boehringer-Ingelheim, GSK, MSD, Novartis, Pfizer und Roche. M.M. Hoeper: Honorare für Beratertätigkeiten und/oder Vorträge von Actelion, Bayer, Gilead, GSK, Merck und Pfizer., (© Georg Thieme Verlag KG Stuttgart · New York.)

Background: Idiopathic interstitial pneumonias are often complicated by pulmonary hypertension, increasing morbidity and mortality. There are no approved treatments for pulmonary hypertension associated with idiopathic interstitial pneumonia (PH-IIP). We aimed to evaluate the efficacy and safety of riociguat in patients with PH-IIP., Methods: RISE-IIP was a double-blind, randomised, placebo-controlled study done at 65 pulmonary hypertension and interstitial lung disease centres in 19 countries to evaluate the efficacy and safety of riociguat in patients with PH-IIP. Eligible patients were adults (aged 18-80 years) diagnosed with idiopathic interstitial pneumonia (as per American Thoracic Society/European Respiratory Society/Japanese Respiratory Society/Latin American Thoracic Association guidelines), forced vital capacity (FVC) of at least 45%, 6MWD of 150-450 m, WHO functional classes II-IV, precapillary pulmonary hypertension confirmed by right heart catheterisation, systolic blood pressure of at least 95 mm Hg, and no signs or symptoms of hypotension. Patients were randomly allocated (1:1) using an interactive voice and web response system to riociguat (0·5-2·5 mg three times daily) or placebo for 26 weeks (main study), after which they could enter an open-label extension in which all patients received riociguat. The primary endpoint was change in 6-min walking distance (6MWD) in the intention-to-treat population. Prespecified safety variables included adverse events and serious adverse events, laboratory parameters, and adverse events of special interest (haemoptysis and symptomatic hypotension), assessed in the intention-to-treat population. This trial is registered with ClinicalTrials.gov, number NCT02138825., Findings: Between June 4, 2014, and May 5, 2016, we enrolled 229 participants. After the exclusion of 82 participants, 147 were randomly allocated to treatment (73 to riociguat, 74 to placebo). The study was terminated early (median treatment duration 157 days [range 6-203]) at the request of the data monitoring committee owing to increased serious adverse events (main study: 27 [37%] of 73 participants in the riociguat group vs 17 [23%] of 74 in the placebo group) and mortality in patients receiving riociguat, and the absence of efficacy signals in the riociguat group. 11 patients died in the main study (eight in the riociguat group, three in the placebo group), and nine died in the extension phase (one in the riociguat group, eight in the former placebo group; all received riociguat). In the main study, the most common adverse events were peripheral oedema (16 [22%] of 73 in the riociguat group vs seven [9%] of 74 in the placebo group) and diarrhoea (11 [15%] vs seven [9%]). The most common serious adverse events were worsening of interstitial lung disease (main study: six [8%] of 73 in the riociguat group vs five [7%] of 74 in the placebo group) and pneumonia (four [5%] vs one [1%]). Riociguat did not improve 6MWD versus placebo at 26 weeks (least-squares mean difference 21 m; 95% CI -9 to 52)., Interpretation: In patients with PH-IIP, riociguat was associated with increased serious adverse events and mortality, and an unfavourable risk-benefit profile. Riociguat should not be used in patients with PH-IIP., Funding: Bayer AG and Merck & Co., (Copyright © 2019 Elsevier Ltd. All rights reserved.)

In the summer of 2016, delegates from the German Respiratory Society, the German Society of Cardiology and the German Society of Pediatric Cardiology met in Cologne, Germany, to define consensus-based practice recommendations for the management of patients with pulmonary arterial hypertension (PAH). These recommendations were built on the 2015 European Pulmonary Hypertension guidelines and included new evidence, where available. The treatment algorithm for PAH was modified based on the observation that there are now many patients diagnosed with IPAH who are at an advanced age and have significant cardiopulmonary comorbidities. For patients newly diagnosed with classic forms of PAH, i.e. younger patients without significant cardiopulmonary comorbidities, the consensus-based recommendation was to use initial combination therapy as the standard approach. The use of monotherapies was no longer considered appropriate in such patients. The choice of treatment strategies should be based on the risk assessment as proposed in the European guidelines. In patients presenting with a low or intermediate risk, oral combination therapy with endothelin receptor antagonists and phosphodiesterase-5 inhibitors or soluble guanylate cyclase stimulators, respectively, should be used. In high-risk patients, triple combination therapy including a subcutaneous or intravenous prostacyclin analogue should be considered. For patients who suffer from PAH and significant cardiopulmonary comorbidities, initial monotherapy is recommended and the use of combination therapies should be considered on an individual basis. The latter recommendations are based on the scarcity of evidence supporting the use of combination therapy and the higher risk of drug-related adverse events in such patients., (Copyright © 2018 Elsevier B.V. All rights reserved.)

Introduction: Idiopathic pulmonary fibrosis (IPF) is considered a disease of older patients, being rare in patients ≤ 50 years. Still, IPF can occur in younger patients, but this particular patient group is not well characterised so far. The aim of this study was to compare the diagnostic certainty, clinical features, comorbidities and survival in young versus older IPF patients., Methods: We reviewed our medical records from February 2011 until February 2015, to identify IPF patients, who were then classified as young (≤ 50 years) or older IPF (> 50 years). Radiographic and histological findings, lung function parameters, comorbidities, disease progression and survival were analysed and compared between the two groups., Results: Of 440 patients with interstitial lung disease, 129 patients with IPF were identified, including 30 (23.3%) ≤50 years and 99 (76.7%) > 50 years. There were no differences between age groups in baseline demographics; younger patients were less likely to have a confirmed diagnosis by high-resolution computed tomography (p = 0.014), more likely to require a biopsy (p = 0.08) and less likely to have received antifibrotic therapy (p = 0.006). Despite an overall limited prognosis, younger patients had a significantly better median survival after diagnosis (p = 0.0375), with a significantly higher proportion of older patients dying due to respiratory failure (p = 0.0383)., Conclusion: IPF patients under the age of 50 years have similar features and clinical course compared to older IPF patients. These patients should be diagnosed by adopting a multidisciplinary team approach, potentially benefitting from earlier intervention with effective antifibrotic therapy.

The BREELIB nebulizer was developed for iloprost to reduce inhalation times for patients with pulmonary arterial hypertension (PAH). This multicenter, randomized, unblinded, four-part study compared inhalation time, pharmacokinetics, and acute tolerability of iloprost 5 µg at mouthpiece delivered via BREELIB versus the standard I-Neb nebulizer in 27 patients with PAH. The primary safety outcome was the proportion of patients with a maximum increase in heart rate (HR) ≥ 25% and/or a maximum decrease in systolic blood pressure ≥ 20% within 30 min after inhalation. Other safety outcomes included systolic, diastolic, and mean blood pressure, HR, oxygen saturation, and adverse events (AEs). Median inhalation times were considerably shorter with BREELIB versus I-Neb (2.6 versus 10.9 min; n = 24). Maximum iloprost plasma concentration and systemic exposure (area under the plasma concentration-time curve) were 77% and 42% higher, respectively, with BREELIB versus I-Neb. Five patients experienced a maximum systolic blood pressure decrease ≥ 20%, four with BREELIB (one mildly and transiently symptomatic), and one with I-Neb; none required medical intervention. AEs reported during the study were consistent with the known safety profile of iloprost. The BREELIB nebulizer offers reduced inhalation time, good tolerability, and may improve iloprost aerosol therapy convenience and thus compliance for patients with PAH.

The 2015 European Guidelines on Diagnosis and Treatment of Pulmonary Hypertension are also valid for Germany. The guidelines contain detailed recommendations for the targeted treatment of pulmonary arterial hypertension (PAH). However, the practical implementation of the European Guidelines in Germany requires the consideration of several country-specific issues and already existing novel data. This requires a detailed commentary to the guidelines, and in some aspects an update already appears necessary. In June 2016, a Consensus Conference organized by the PH working groups of the German Society of Cardiology (DGK), the German Society of Respiratory Medicine (DGP) and the German Society of Pediatric Cardiology (DGPK) was held in Cologne, Germany. This conference aimed to solve practical and controversial issues surrounding the implementation of the European Guidelines in Germany. To this end, a number of working groups was initiated, one of which was specifically dedicated to the targeted therapy of PAH. This article summarizes the results and recommendations of the working group on targeted treatment of PAH., (© Georg Thieme Verlag KG Stuttgart · New York.)

The 2015 European Guidelines on Diagnosis and Treatment of Pulmonary Hypertension are also valid for Germany. The guidelines contain detailed information about the diagnosis of pulmonary hypertension, and furthermore provide novel recommendations for risk stratification and follow-up assessments. However, the practical implementation of the European Guidelines in Germany requires the consideration of several country-specific issues and already existing novel data. This requires a detailed commentary to the guidelines, and in some aspects an update already appears necessary. In June 2016, a Consensus Conference organized by the PH working groups of the German Society of Cardiology (DGK), the German Society of Respiratory Medicine (DGP) and the German Society of Pediatric Cardiology (DGPK) was held in Cologne, Germany. This conference aimed to solve practical and controversial issues surrounding the implementation of the European Guidelines in Germany. To this end, a number of working groups was initiated, one of which was specifically dedicated to risk stratification and follow-up assessment of patients with PAH. This manuscript summarizes the results and recommendations of this working group., (© Georg Thieme Verlag KG Stuttgart · New York.)

Riociguat is the first clinically available soluble Guanylate-cyclase stimulator (sGC) and representative of a completely new class of drugs. Riociguat is approved for pulmonary arterial hypertension (PAH) and non-operable or recurrent/persistent chronic thromboembolic pulmonary hypertension (CTEPH). Moreover, Riociguat is currently under investigation for a wider spectrum of diseases. This article focusses on its mode of action and clinical trial data. Finally, based on these data, the status of approval, as well as the costs a proposal is given how Riociguat can be integrated in the current treatment of PAH and CTEPH.