Evidence map›Paper›PMID 30288327›Full record

ArticleHepatology, medicine and policy2018

Design of the Prospective Real-world Outcomes Study of hepatic encephalopathy Patients' Experience on Rifaximin-α (PROSPER): an observational study among 550 patients.

Aleksander Krag, Marcus Schuchmann, Hanna Sodatonou, Jeff Pilot, James Whitehouse, Simone I Strasser, Mark Hudson

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in Hepatology, medicine and policy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02488993 (PROSPER), which is not on this map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 34% 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.

NCT02488993 completednot on this map

PROSPER: Prospective Real World Outcomes Study of Hepatic Encephalopathy Patients' Experience on Rifaximin-α (TARGAXAN®/XIFAXAN®) 550 mg

Typeobservational_patient_registrySponsorNorgineRan2015 to 2018Enrolled389ConditionsHepatic EncephalopathyArmsProspective Phase Rifaximin-α 550mg, Prospective Phase No Rifaximin-α 550mg, Retrospective Phase
3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 3 countries.

Aleksander KragDepartment of Gastroenterology and Hepatology, Odense University Hospital, University of Southern Denmark, Odense, Denmark.
Marcus SchuchmannDepartment of Internal Medicine, Constance Medical Centre, Constance, Germany.
Hanna Sodatonou3Norgine Ltd Clinical Development & Medical Affairs, Harefield, UK.
Jeff Pilot3Norgine Ltd Clinical Development & Medical Affairs, Harefield, UK.
James Whitehouse4Norgine Global Health Outcomes, Norgine Ltd, Uxbridge, UK.
Simone I Strasser5AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital and University of Sydney, Sydney, Australia.
Mark HudsonLiver Unit, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Trust and Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK.
Norgine (United Kingdom) · GBNewcastle University · GBUniversity of Southern Denmark · DKUniversity of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHepatic encephalopathy (HE) is one of the most important severe complications of liver cirrhosis. Thought to be caused by elevated blood levels of gut-derived neurotoxins (particularly ammonia) entering the brain, HE manifests as a wide range of neurological or psychiatric abnormalities, which increase the risk of mortality, result in substantial morbidity and negatively affect the quality of life (QoL) of both patients and their caregivers. HE is also associated with a substantial economic burden. Rifaximin-α 550 mg is a locally acting oral antibiotic that reduces the effects of ammonia-producing intestinal flora, and which is used to help reduce the recurrence of overt HE. The efficacy of rifaximin-α 550 mg was established in a randomised controlled trial and long-term extension study. However, 'real-world' evidence is also required to assess how this efficacy may translate into effectiveness in clinical practice, including the potential impact of treatment on healthcare resource utilisation.

methodsThe Prospective Real-world Outcomes Study of HE Patients' Experience on Rifaximin-α 550 mg (PROSPER) is a multinational, multicentre, observational study that will be conducted under real-world clinical practice conditions. Comprising a retrospective phase (up to 12 months) and a prospective phase (up to 24 months), and employing a robust statistical methodology, PROSPER has been specifically designed to minimise the bias associated with observational studies. The primary endpoint will be the effect of rifaximin-α 550 mg treatment on HE- and liver-related hospitalisation rate and duration of hospitalisation. Secondary endpoints will include comprehensive assessments of the impact of treatment on the QoL and workplace productivity of patients and caregivers, a global assessment of treatment effectiveness and safety/tolerability. Approximately 550 patients will be enrolled.

conclusionsPROSPER will provide valuable real-world information on the effectiveness of rifaximin-α 550 mg in reducing the recurrence of HE, and its impact on the QoL and work productivity of patients and their caregivers. By providing data on both the direct costs (e.g., hospitalisation rate, duration of hospitalisation) and indirect costs (such as work productivity) of HE, PROSPER should help confirm whether rifaximin-α 550 mg treatment represents a good use of economic resources.

trial registrationClinicalTrials.gov identifier NCT02488993.

Indexed as

CirrhosisHealth economicsHepatic encephalopathyHospitalisationLiver diseasePatient-reported outcomesQuality of lifeReal-worldRifaximin-α 550 mgWork productivity

Identifiers

PMID30288327
PMCPMC5918574
OpenAlexW2782617574

What OpenQuestion holds

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LicenceCC BY
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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.