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Varian F, Dick J, Battersby C, Roman S, Ablott J, Watson L, Binmahfooz S, Zafar H, Colgan G, Cannon J, Suntharalingam J, Lordan J, Howard L, McCabe C, Wort J, Price L, Church C, Hamilton N, Armstrong I, Hameed A, Hurdman J, Elliot C, Condliffe R, Wilkins M, Webb A, Adlam D, Benza RL, Rahimi K, Shojaei‐Shahrokhabadi M, Lin NX, Wason JMS, McIntosh A, McConnachie A, Middleton JT, Thompson R, Kiely DG, Toshner M, Rothman A. Pulmonary Hypertension: Intensification and Personalization of Combination Rx (PHoenix): A phase IV randomized trial for the evaluation of dose-response and clinical efficacy of riociguat and selexipag using implanted technologies. Pulm Circ 2024; 14:e12337. [PMID: 38500737 PMCID: PMC10945040 DOI: 10.1002/pul2.12337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 12/19/2023] [Accepted: 01/02/2024] [Indexed: 03/20/2024] Open
Abstract
Approved therapies for the treatment of patients with pulmonary arterial hypertension (PAH) mediate pulmonary vascular vasodilatation by targeting distinct biological pathways. International guidelines recommend that patients with an inadequate response to dual therapy with a phosphodiesterase type-5 inhibitor (PDE5i) and endothelin receptor antagonist (ERA), are recommended to either intensify oral therapy by adding a selective prostacyclin receptor (IP) agonist (selexipag), or switching from PDE5i to a soluble guanylate-cyclase stimulator (sGCS; riociguat). The clinical equipoise between these therapeutic choices provides the opportunity for evaluation of individualized therapeutic effects. Traditionally, invasive/hospital-based investigations are required to comprehensively assess disease severity and demonstrate treatment benefits. Regulatory-approved, minimally invasive monitors enable equivalent measurements to be obtained while patients are at home. In this 2 × 2 randomized crossover trial, patients with PAH established on guideline-recommended dual therapy and implanted with CardioMEMS™ (a wireless pulmonary artery sensor) and ConfirmRx™ (an insertable cardiac rhythm monitor), will receive ERA + sGCS, or PDEi + ERA + IP agonist. The study will evaluate clinical efficacy via established clinical investigations and remote monitoring technologies, with remote data relayed through regulatory-approved online clinical portals. The primary aim will be the change in right ventricular systolic volume measured by magnetic resonance imaging (MRI) from baseline to maximal tolerated dose with each therapy. Using data from MRI and other outcomes, including hemodynamics, physical activity, physiological measurements, quality of life, and side effect reporting, we will determine whether remote technology facilitates early evaluation of clinical efficacy, and investigate intra-patient efficacy of the two treatment approaches.
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Affiliation(s)
- Frances Varian
- Division of Clinical MedicineUniversity of SheffieldSheffieldUK
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | - Jennifer Dick
- Division of Clinical MedicineUniversity of SheffieldSheffieldUK
| | | | - Stefan Roman
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | - Jenna Ablott
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | - Lisa Watson
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | | | - Hamza Zafar
- Division of Clinical MedicineUniversity of SheffieldSheffieldUK
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | | | - John Cannon
- Royal Papworth Hospital NHS Foundation TrustCambridgeUK
| | | | - Jim Lordan
- Newcastle Hospitals NHS Foundation TrustNewcastleUK
| | - Luke Howard
- Imperial College Healthcare NHS TrustLondonUK
| | - Colm McCabe
- Royal Brompton and HarefieldGuy's and St Thomas' NHS Foundation TrustLondonUK
| | - John Wort
- NHS Greater Glasgow and ClydeGlasgowUK
| | | | - Colin Church
- National Heart and Lung Institute, Faculty of Medicine, Imperial College LondonLondonUK
| | - Neil Hamilton
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | - Iain Armstrong
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | - Abdul Hameed
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | - Judith Hurdman
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | - Charlie Elliot
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | - Robin Condliffe
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | - Martin Wilkins
- National Heart and Lung Institute, Faculty of Medicine, Imperial College LondonLondonUK
| | - Alastair Webb
- Wolfson Centre for Prevention of Stroke and DementiaUniversity of OxfordOxfordUK
| | - David Adlam
- Cardiovascular Research Unit of LeicesterLeicesterUK
| | - Ray L. Benza
- Mount Sinai HeartIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Kazem Rahimi
- Deep Medicine, Nuffield Department of Women's and Reproductive HealthUniversity of OxfordOxfordUK
| | | | - Nan X. Lin
- Biostatistics Research Group, Population Health Sciences InstituteNewcastle UniversityNewcastle upon TyneUK
| | - James M. S. Wason
- Biostatistics Research Group, Population Health Sciences InstituteNewcastle UniversityNewcastle upon TyneUK
| | - Alasdair McIntosh
- Robertson Centre for Biostatistics, School of Health and WellbeingUniversity of GlasgowGlasgowUK
| | - Alex McConnachie
- Robertson Centre for Biostatistics, School of Health and WellbeingUniversity of GlasgowGlasgowUK
| | - Jennifer T. Middleton
- Division of Clinical MedicineUniversity of SheffieldSheffieldUK
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | - Roger Thompson
- Division of Clinical MedicineUniversity of SheffieldSheffieldUK
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | - David G. Kiely
- Division of Clinical MedicineUniversity of SheffieldSheffieldUK
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
| | - Mark Toshner
- Department of Medicine, Heart and Lung Research InstituteUniversity of CambridgeCambridgeUK
| | - Alexander Rothman
- Division of Clinical MedicineUniversity of SheffieldSheffieldUK
- Sheffield Pulmonary Vascular Disease UnitSheffield Teaching Hospitals NHS Foundation TrustSheffieldUK
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