Evidence map›Paper›PMID 26510696›Full record

Trial reportCirculation2015

Effect of Warfarin Treatment on Survival of Patients With Pulmonary Arterial Hypertension (PAH) in the Registry to Evaluate Early and Long-Term PAH Disease Management (REVEAL).

Ioana R Preston, Kari E Roberts, Dave P Miller, Ginny P Sen, Mona Selej, Wade W Benton, Nicholas S Hill, Harrison W Farber

Registry-linked trialOpen access · hybridAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Circulation, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00370214 (REVEAL Registry™), which is not on this map. Cited by 71 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 4 pooled it
18.4field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT00370214 completednot on this map

REVEAL Registry™: Registry to Evaluate Early And Long-term PAH Disease Management

TypeobservationalSponsorActelionRan2006 to 2012Enrolled3,515ConditionsPulmonary Hypertension
3 · Its place in the literature

Who cites it

71 citing papers in PubMed, 4 syntheses or guidelines pooled it, 183 citations in OpenAlex.

  1. Management of pulmonary arterial hypertension in systemic sclerosis: from classical treatments to new horizons.European respiratory review : an official journal of the European Respiratory Society · 2026
    Pooled it
  2. Guideline
  3. Pooled it
  4. Is Anticoagulation Beneficial in Pulmonary Arterial Hypertension?Circulation. Cardiovascular quality and outcomes · 2018
    Pooled it
  5. Trial
  6. Article
  7. Article
  8. Article
  9. Article
  10. BMP9 regulates the endothelial secretome to drive pulmonary hypertension.bioRxiv : the preprint server for biology · 2025
    Article
  11. Article
  12. Article
  13. Review
  14. Treatment algorithm for pulmonary arterial hypertension.The European respiratory journal · 2024
    Review
  15. Cardiac Arrhythmias in Pulmonary Arterial Hypertension and Chronic Thromboembolic Pulmonary Hypertension: Mechanistic Insights, Pathophysiology, and Outcomes.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2024
    Review
  16. Article
  17. Article
  18. Review
  19. Review
  20. Anticoagulation in pulmonary arterial hypertension - association with mortality, healthcare utilization, and quality of life: The Pulmonary Hypertension Association Registry (PHAR).The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation · 2022
    Article

11 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Ioana R PrestonFrom Tufts University School of Medicine, Boston, MA (I.R.P., K.E.R., N.S.H.); ICON Clinical Research, San Francisco, CA (D.P.M., G.P.S.); Actelion Pharmaceuticals US Inc., South San Francisco, CA (M.S., W.W.B.); and Boston University School of Medicine, Boston, MA (H.W.F.).
Kari E RobertsFrom Tufts University School of Medicine, Boston, MA (I.R.P., K.E.R., N.S.H.); ICON Clinical Research, San Francisco, CA (D.P.M., G.P.S.); Actelion Pharmaceuticals US Inc., South San Francisco, CA (M.S., W.W.B.); and Boston University School of Medicine, Boston, MA (H.W.F.).
Dave P MillerFrom Tufts University School of Medicine, Boston, MA (I.R.P., K.E.R., N.S.H.); ICON Clinical Research, San Francisco, CA (D.P.M., G.P.S.); Actelion Pharmaceuticals US Inc., South San Francisco, CA (M.S., W.W.B.); and Boston University School of Medicine, Boston, MA (H.W.F.).
Ginny P SenFrom Tufts University School of Medicine, Boston, MA (I.R.P., K.E.R., N.S.H.); ICON Clinical Research, San Francisco, CA (D.P.M., G.P.S.); Actelion Pharmaceuticals US Inc., South San Francisco, CA (M.S., W.W.B.); and Boston University School of Medicine, Boston, MA (H.W.F.).
Mona SelejFrom Tufts University School of Medicine, Boston, MA (I.R.P., K.E.R., N.S.H.); ICON Clinical Research, San Francisco, CA (D.P.M., G.P.S.); Actelion Pharmaceuticals US Inc., South San Francisco, CA (M.S., W.W.B.); and Boston University School of Medicine, Boston, MA (H.W.F.).
Wade W BentonFrom Tufts University School of Medicine, Boston, MA (I.R.P., K.E.R., N.S.H.); ICON Clinical Research, San Francisco, CA (D.P.M., G.P.S.); Actelion Pharmaceuticals US Inc., South San Francisco, CA (M.S., W.W.B.); and Boston University School of Medicine, Boston, MA (H.W.F.).
Nicholas S HillFrom Tufts University School of Medicine, Boston, MA (I.R.P., K.E.R., N.S.H.); ICON Clinical Research, San Francisco, CA (D.P.M., G.P.S.); Actelion Pharmaceuticals US Inc., South San Francisco, CA (M.S., W.W.B.); and Boston University School of Medicine, Boston, MA (H.W.F.).
Harrison W FarberFrom Tufts University School of Medicine, Boston, MA (I.R.P., K.E.R., N.S.H.); ICON Clinical Research, San Francisco, CA (D.P.M., G.P.S.); Actelion Pharmaceuticals US Inc., South San Francisco, CA (M.S., W.W.B.); and Boston University School of Medicine, Boston, MA (H.W.F.). hfarber@bu.edu.
Actelion (United States) · USSunesis (United States) · USPinnacle Clinical Research · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLong-term anticoagulation is recommended in idiopathic pulmonary arterial hypertension (IPAH). In contrast, limited data support anticoagulation in pulmonary arterial hypertension (PAH) associated with systemic sclerosis (SSc-PAH). We assessed the effect of warfarin anticoagulation on survival in IPAH and SSc-PAH patients enrolled in Registry to Evaluate Early and Long-term PAH Disease Management (REVEAL), a longitudinal registry of group I PAH. METHODS AND

resultsPatients who initiated warfarin on study (n=187) were matched 1:1 with patients never on warfarin, by enrollment site, etiology, and diagnosis status. Descriptive analyses were conducted to compare warfarin users and nonusers by etiology. Survival analyses with and without risk adjustment were performed from the time of warfarin initiation or a corresponding quarterly update in matched pairs to avoid immortal time bias. Time-varying covariate models were used as sensitivity analyses. Mean warfarin treatment was 1 year; mean international normalized ratios were 1.9 (IPAH) and 2.0 (SSc-PAH). Two-thirds of patients initiating warfarin discontinued treatment before the last study assessment. There was no survival difference with warfarin in IPAH patients (adjusted hazard ratio, 1.37; P=0.21) or in SSc-PAH patients (adjusted hazard ratio, 1.60; P=0.15) in comparison with matched controls. However, SSc-PAH patients receiving warfarin within the previous year (hazard ratio, 1.57; P=0.031) or any time postbaseline (hazard ratio, 1.49; P=0.046) had increased mortality in comparison with warfarin-naïve patients.

conclusionsNo significant survival advantage was observed in IPAH patients who started warfarin. In SSc-PAH patients, long-term warfarin was associated with poorer survival than in patients not receiving warfarin, even after adjusting for confounders. CLINICAL

trial registrationURL: http://www.clinicaltrials.gov. Unique identifier: NCT00370214.

Indexed as

Disease ManagementRegistriesAdultAgedAnticoagulantsFemaleHumansHypertension, PulmonaryMaleMiddle AgedSurvival RateTime FactorsTreatment OutcomeWarfarinAnticoagulantsWarfarinanticoagulantshypertensionpulmonarysurvivaltherapy

Identifiers

PMID26510696
PMCPMC4689180
OpenAlexW2184677300

What OpenQuestion holds

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.