Evidence map›Paper›PMID 28222681›Full record

ArticleBMC infectious diseases2017

The need for treatment scale-up to impact HCV transmission in people who inject drugs in Montréal, Canada: a modelling study.

Anthony Cousien, Pascale Leclerc, Carole Morissette, Julie Bruneau, Élise Roy, Viet Chi Tran, Yazdan Yazdanpanah, Joseph Cox

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
3.3field-weighted citation impact, top 7% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 39 citations in OpenAlex.

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  11. The hepatitis C epidemic in Canada: An overview of recent trends in surveillance, injection drug use, harm reduction and treatment.Canada communicable disease report = Releve des maladies transmissibles au Canada · 2021
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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

8 authors at 7 institutions in 2 countries.

Anthony CousienIAME, UMR 1137, INSERM, F-75018, Paris, France.
Pascale LeclercDirection régionale de santé publique du Centre intégré universitaire de santé et de services sociaux du Centre-Sud-de-l'Ile-de-Montréal, 1301 rue Sherbrooke est, Montréal, QC, H2L 1M3, Canada.
Carole MorissetteDirection régionale de santé publique du Centre intégré universitaire de santé et de services sociaux du Centre-Sud-de-l'Ile-de-Montréal, 1301 rue Sherbrooke est, Montréal, QC, H2L 1M3, Canada.
Julie BruneauCentre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM), 900 Saint-Denis, Montréal, QC, H2X 0A9, Canada.
Élise RoyFaculté de médecine et des sciences de la santé, Université de Sherbrooke, Campus Longueuil, 150 place Charles-Le Moyne, Longueuil, QC, J4K 0A8, Canada.
Viet Chi TranLaboratoire Paul Painlevé UMR CNRS 8524, UFR de Mathématiques, Université des Sciences et Technologies Lille 1, Cité Scientifique, Villeneuve d'Ascq, France.
Yazdan YazdanpanahIAME, UMR 1137, INSERM, F-75018, Paris, France.
Joseph CoxDirection régionale de santé publique du Centre intégré universitaire de santé et de services sociaux du Centre-Sud-de-l'Ile-de-Montréal, 1301 rue Sherbrooke est, Montréal, QC, H2L 1M3, Canada. joseph.cox@mcgill.ca.
Centre Intégré Universitaire de Santé et de Services Sociaux du Centre-Sud-de-l'Île-de-Montréal · CACentre Hospitalier de l’Université de Montréal · CAHôpital Charles-Le Moyne · CALaboratoire Paul Painlevé · FRMcGill University · CASorbonne Paris Cité · FRUniversité Paris Cité · FR

Funding

CIHR
6 · The paper itself

Abstract

backgroundHCV transmission remains high in people who inject drugs (PWID) in Montréal. New direct-acting antivirals (DAAs), highly effective and more tolerable than previous regimens, make a "Treatment as Prevention" (TasP) strategy more feasible. This study assesses how improvements in the cascade of care could impact hepatitis C burden among PWID in Montréal.

methodsWe used a dynamic model to simulate HCV incidence and prevalence after 10 years, and cirrhosis complications after 10 and 40 years. Eight scenarios of improved cascade of care were examined.

resultsUsing a baseline incidence and prevalence of 22.1/100 person-years (PY) and 53.1%, implementing the current cascade of care using DAAs would lead to HCV incidence and prevalence estimates at 10 years of 9.4/100PY and 55.8%, respectively. Increasing the treatment initiation rate from 5%/year initially to 20%/year resulted in large decreases in incidence (6.4/100PY), prevalence (36.6%), and cirrhosis complications (-18%/-37% after 10/40 years). When restricting treatment to fibrosis level ≥ F2 instead of F0 (reference scenario), such decreases in HCV occurrence were unreachable. Improving the whole cascade of care led to the greatest effect by halving both the incidence and prevalence at 10 years, and the number of cirrhosis complications after 40 years.

conclusionsThe current level of treatment access in Montréal is limiting a massive decrease in hepatitis C burden among PWID. A substantial treatment scale-up, regardless of fibrosis level, is necessary. While improving the rest of the cascade of care is necessary to optimize a TasP strategy and control the HCV epidemic, a treatment scale-up is first needed.

Indexed as

AdolescentAdultAgedAged, 80 and overAntiviral AgentsCost of IllnessFemaleHealth Services AccessibilityHepatitis CHumansIncidenceLiver CirrhosisMaleMiddle AgedModels, TheoreticalPrevalenceAntiviral AgentsCascade of careDirect-acting antiviralDynamic modelHCV eliminationPeople who inject drugsTreatment initiation criteria

Identifiers

PMID28222681
PMCPMC5320702
OpenAlexW2590576529

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.