Evidence map›Paper›PMID 21831279›Full record

GuidelineOrphanet journal of rare diseases2011

Enzyme replacement therapy and/or hematopoietic stem cell transplantation at diagnosis in patients with mucopolysaccharidosis type I: results of a European consensus procedure.

Minke H de Ru, Jaap J Boelens, Anibh M Das, Simon A Jones, Johanna H van der Lee, Nizar Mahlaoui, Eugen Mengel, Martin Offringa, Anne O'Meara, Rossella Parini and 6 more

Open access · goldAbstract readConsensus StatementPractice Guideline
In one paragraph

Guideline in Orphanet journal of rare diseases, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 106 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
106citing papers in PubMed, 1 pooled it
10.4field-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.

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

106 citing papers in PubMed, 1 synthesis or guideline pooled it, 230 citations in OpenAlex.

  1. Enzyme replacement therapy with laronidase (AldurazymeThe Cochrane database of systematic reviews · 2019
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  5. Late Mortality after Allogeneic Blood or Marrow Transplantation for Inborn Errors of Metabolism: A Report from the Blood or Marrow Transplant Survivor Study-2 (BMTSS-2).Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation · 2019
    Trial
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  7. Biologic Therapies for Alleviating Neurodegeneration in Lysosomal Storage Diseases.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2026
    Review
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46 more citing papers are in PubMed but not listed here.

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

16 authors at 11 institutions in 6 countries.

Minke H de RuDepartment of Pediatrics and Amsterdam Lysosome Center 'Sphinx', Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Jaap J Boelens
Anibh M Das
Simon A Jones
Johanna H van der Lee
Nizar Mahlaoui
Eugen Mengel
Martin Offringa
Anne O'Meara
Rossella Parini
Attilio Rovelli
Karl-Walter Sykora
Vassili Valayannopoulos
Ashok Vellodi
Robert F Wynn
Frits A Wijburg
Academic Medical Center · NLAzienda Ospedaliera San Gerardo · ITMedizinische Hochschule Hannover · DEUniversity of Amsterdam · NLGreat Ormond Street Hospital · GBHôpital Necker-Enfants Malades · FRJohannes Gutenberg University Mainz · DEOur Lady's Hospital · IERoyal Manchester Children's Hospital · GBSt Mary's Hospital · GBUniversity Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMucopolysaccharidosis type I (MPS I) is a lysosomal storage disorder that results in the accumulation of glycosaminoglycans causing progressive multi-organ dysfunction. Its clinical spectrum is very broad and varies from the severe Hurler phenotype (MPS I-H) which is characterized by early and progressive central nervous system (CNS) involvement to the attenuated Scheie phenotype (MPS I-S) with no CNS involvement. Indication, optimal timing, safety and efficacy of the two available treatment options for MPS I, enzyme replacement therapy (ERT) and hematopoietic stem cell transplantation (HSCT), are subject to continuing debate. A European consensus procedure was organized to reach consensus about the use of these two treatment strategies.

methodsA panel of specialists, including 8 specialists for metabolic disorders and 7 bone marrow transplant physicians, all with acknowledged expertise in MPS I, participated in a modified Delphi process to develop consensus-based statements on MPS I treatment. Fifteen MPS I case histories were used to initiate the discussion and to anchor decisions around either treatment mode. Before and at the meeting all experts gave their opinion on the cases (YES/NO transplantation) and reasons for their decisions were collected. A set of draft statements on MPS I treatment options composed by a planning committee were discussed and revised during the meeting until full consensus.

resultsFull consensus was reached on several important issues, including the following: 1) The preferred treatment for patients with MPS I-H diagnosed before age 2.5 yrs is HSCT; 2) In individual patients with an intermediate phenotype HSCT may be considered if there is a suitable donor. However, there are no data on efficacy of HSCT in patients with this phenotype; 3) All MPS I patients including those who have not been transplanted or whose graft has failed may benefit significantly from ERT; 4) ERT should be started at diagnosis and may be of value in patients awaiting HSCT.

conclusionsThis multidisciplinary consensus procedure yielded consensus on the main issues related to therapeutic choices and research for MPS I. This is an important step towards an international, collaborative approach, the only way to obtain useful evidence in rare diseases.

Indexed as

Child, PreschoolCombined Modality TherapyEnzyme Replacement TherapyEuropeHematopoietic Stem Cell TransplantationHumansIduronidaseInfantMucopolysaccharidosis ITreatment OutcomeIduronidase

Identifiers

PMID21831279
PMCPMC3170181
OpenAlexW2156621878

What OpenQuestion holds

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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.