PMID- 31122893 OWN - NLM STAT- MEDLINE DCOM- 20200702 LR - 20200702 IS - 2213-2619 (Electronic) IS - 2213-2600 (Linking) VI - 7 IP - 8 DP - 2019 Aug TI - Long-term treatment with recombinant human pentraxin 2 protein in patients with idiopathic pulmonary fibrosis: an open-label extension study. PG - 657-664 LID - S2213-2600(19)30172-9 [pii] LID - 10.1016/S2213-2600(19)30172-9 [doi] AB - BACKGROUND: Patients with idiopathic pulmonary fibrosis (IPF) treated with PRM-151, a recombinant human pentraxin 2 protein, in a phase 2 double-blind, randomised controlled trial had significantly reduced decline in percentage of predicted forced vital capacity (FVC) and stabilised 6-min walking distance compared with placebo over a 28-week period. Here we report the 76-week results of an open-label extension study. METHODS: Patients who completed the 28-week double-blind period of the PRM-151-202 trial were eligible to participate in the open-label extension study. Patients previously enrolled in the PRM-151 group continued this treatment and those previously in the placebo group crossed over to PRM-151. All patients received PRM-151 in 28-week cycles with loading doses of 10 mg/kg by 60 min intravenous infusions on days 1, 3, and 5 in the first week of each cycle followed by one infusion of 10 mg/kg every 4 weeks. The primary objective of the open-label extension study was to assess the long-term safety and tolerability of PRM-151, which were assessed by analysing adverse events (AEs) up to week 76 in all patients who received at least one dose of PRM-151 during the open-label extension study. Exploratory efficacy analyses were done by assessing changes from baseline in percentage of predicted FVC and 6-min walking distance, with descriptive statistics to week 76 and with random-intercept mixed models to week 52. This study is registered with ClinicalTrials.gov, number NCT02550873, and with EudraCT, number 2014-004782-24. FINDINGS: Of 116 patients who completed the double-blind treatment period, 111 entered the open-label extension study (74 from the PRM-151 group and 37 from the placebo group). 84 (76%) of 111 patients received concomitant IPF therapy (pirfenidone n=55 or nintedanib n=29). AEs were consistent with long-term IPF sequelae. 31 (28%) patients had serious AEs. Those occurring in two or more patients were pneumonia (six [5%] of 111), IPF exacerbation (four [4%]), IPF progression (four [4%]), and chest pain (two [2%]). 21 (19%) patients had severe AEs, of which IPF exacerbation and IPF progression each occurred in two (2%) patients. Two (2%) patients experienced life-threatening AEs (one had pneumonia and one had small-cell lung cancer extensive stage). A persistent treatment effect was observed for PRM-151 in patients who continued treatment, with a decline in percentage of predicted FVC of -3.6% per year and in 6-min walking distance of -10.5 m per year at week 52. In patients who started PRM-151 during the open-label extension study, compared with the slopes for placebo, decline reduced for percentage of predicted FVC (from -8.7% per year in weeks 0-28 to -0.9% per year in weeks 28-52, p<0.0001) and 6-min walking distance (from -54.9 m per year to -3.5 m per year, p=0.0224). INTERPRETATION: Long-term treatment with PRM-151 was well tolerated and the effects on percentage of predicted FVC and 6-min walking distance were persistent on continuation and positive in patients who crossed over from placebo. These findings support further study of PRM-151 in larger populations of patients with IPF. FUNDING: Promedior. CI - Copyright (c) 2019 Elsevier Ltd. All rights reserved. FAU - Raghu, Ganesh AU - Raghu G AD - Center for Interstitial Lung Diseases, Department of Medicine and Laboratory Medicine, University of Washington, Seattle, WA, USA. Electronic address: graghu@uw.edu. FAU - van den Blink, Bernt AU - van den Blink B AD - Promedior, Lexington, MA, USA. FAU - Hamblin, Mark J AU - Hamblin MJ AD - Pulmonary and Critical Care Medicine, University of Kansas Medical Center, Kansas City, KS, USA. FAU - Brown, A Whitney AU - Brown AW AD - Inova Fairfax Hospital, Falls Church, VA, USA. FAU - Golden, Jeffrey A AU - Golden JA AD - Department of Medicine, University of California, San Francisco, San Francisco, CA, USA. FAU - Ho, Lawrence A AU - Ho LA AD - Center for Interstitial Lung Diseases, Department of Medicine and Laboratory Medicine, University of Washington, Seattle, WA, USA. FAU - Wijsenbeek, Marlies S AU - Wijsenbeek MS AD - Department of Respiratory Medicine, Erasmus MC, University Medical Center, Rotterdam, Netherlands. FAU - Vasakova, Martina AU - Vasakova M AD - Department of Respiratory Medicine, First Faculty of Medicine of Charles University and Thomayer Hospital, Prague, Czech Republic. FAU - Pesci, Alberto AU - Pesci A AD - School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy. FAU - Antin-Ozerkis, Danielle E AU - Antin-Ozerkis DE AD - Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, New Haven, CT, USA. FAU - Meyer, Keith C AU - Meyer KC AD - Department of Medicine, Division of Pulmonary and Critical Care, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA. FAU - Kreuter, Michael AU - Kreuter M AD - Center for Interstitial and Rare Lung Diseases, Thoraxklinik, University of Heidelberg and German Center for Lung, Research, Heidelberg, Germany. FAU - Moran, Donna AU - Moran D AD - Promedior, Lexington, MA, USA. FAU - Santin-Janin, Hugues AU - Santin-Janin H AD - Venn Life Sciences, Paris, France. FAU - Aubin, Francois AU - Aubin F AD - Venn Life Sciences, Paris, France. FAU - Mulder, Geert-Jan AU - Mulder GJ AD - Promedior, Lexington, MA, USA. FAU - Gupta, Renu AU - Gupta R AD - Promedior, Lexington, MA, USA. FAU - Richeldi, Luca AU - Richeldi L AD - Fondazione Policlinico Universitario A Gemelli IRCCS, Universita Cattolica del Sacro Cuore, Rome, Italy. LA - eng SI - ClinicalTrials.gov/NCT02550873 PT - Clinical Trial, Phase II PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20190520 PL - England TA - Lancet Respir Med JT - The Lancet. Respiratory medicine JID - 101605555 RN - 0 (Homeodomain Proteins) RN - 0 (PRM-151) RN - 0 (Recombinant Proteins) RN - 0 (Serum Amyloid P-Component) SB - IM CIN - Lancet Respir Med. 2019 Aug;7(8):640-641. PMID: 31122900 MH - Aged MH - Cross-Over Studies MH - Double-Blind Method MH - Female MH - Homeodomain Proteins/*therapeutic use MH - Humans MH - Idiopathic Pulmonary Fibrosis/*drug therapy MH - Long-Term Care MH - Male MH - Recombinant Proteins/therapeutic use MH - Serum Amyloid P-Component/*therapeutic use MH - Treatment Outcome MH - Vital Capacity EDAT- 2019/05/28 06:00 MHDA- 2020/07/03 06:00 CRDT- 2019/05/25 06:00 PHST- 2019/02/28 00:00 [received] PHST- 2019/04/12 00:00 [revised] PHST- 2019/04/13 00:00 [accepted] PHST- 2019/05/28 06:00 [pubmed] PHST- 2020/07/03 06:00 [medline] PHST- 2019/05/25 06:00 [entrez] AID - S2213-2600(19)30172-9 [pii] AID - 10.1016/S2213-2600(19)30172-9 [doi] PST - ppublish SO - Lancet Respir Med. 2019 Aug;7(8):657-664. doi: 10.1016/S2213-2600(19)30172-9. Epub 2019 May 20.