Evidence map›Paper›PMID 21708003›Full record

Trial reportOrphanet journal of rare diseases2011

"MY PKU": increasing self-management in patients with phenylketonuria. A randomized controlled trial.

Amber E Ten Hoedt, Carla Em Hollak, Carolien Ca Boelen, N Ada P van der Herberg-van de Wetering, Nienke M Ter Horst, Cora F Jonkers, Frits A Wijburg, Annet M Bosch

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report 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 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

5 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. 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

8 authors at 3 institutions in 1 country.

Amber E Ten HoedtDepartment of Pediatrics, Academic Medical Center (AMC), University of Amsterdam, AZ Amsterdam, The Netherlands. a.m.bosch@amc.uva.nl
Carla Em Hollak
Carolien Ca Boelen
N Ada P van der Herberg-van de Wetering
Nienke M Ter Horst
Cora F Jonkers
Frits A Wijburg
Annet M Bosch
University of Amsterdam · NLAcademic Medical Center · NLLeiden University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPhenylketonuria (PKU) is an autosomal recessive disorder of phenylalanine metabolism. The inability to convert phenylalanine (Phe) into tyrosine causes Phe to accumulate in the body. Adherence to a protein restricted diet, resulting in reduced Phe levels, is essential to prevent cognitive decline. Frequent evaluation of plasma Phe levels and, if necessary, adjustment of the diet are the mainstay of treatment. We aimed to assess whether increased self-management of PKU patients and/or their parents is feasible and safe, by providing direct online access to blood Phe values without immediate professional guidance.

methodsThirty-eight patients aged ≥ 1 year participated in a 10 month randomized controlled trial. Patients were randomized into a study group (1) or a control group (2). Group 2 continued the usual procedure: a phone call or e-mail by a dietician in case of a deviant Phe value. Group 1 was given a personal "My PKU" web page with a graph of their recent and previous Phe values, online general information about the dietary treatment and the Dutch PKU follow-up guidelines, and a message-box to contact their dietician if necessary. Phe values were provided on "My PKU" without advice. Outcome measures were: differences in mean Phe value, percentage of values above the recommended range and Phe sample frequency, between a 10-month pre-study period and the study period in each group, and between the groups in both periods. Furthermore we assessed satisfaction of patients and/or parents with the 'My PKU' procedure of online availability.

resultsThere were no significant differences in mean Phe value, percentage of values above recommended range or in frequency of blood spot sampling for Phe determination between the pre-study period and the study period in each group, nor between the 2 groups during the periods. All patients and/or parents expressed a high level of satisfaction with the new way of disease management.

conclusionsIncreased self-management in PKU by providing patients and/or parents their Phe values without advice is feasible and safe and is highly appreciated.

trial registrationThe trial was registered with The Netherlands National Trial Register (NTR #1171) before recruitment of patients.

Indexed as

Patient SatisfactionSelf CareAdolescentAdultChildChild, PreschoolDietFemaleHumansInfantMalePhenylalaninePhenylketonuriasYoung AdultPhenylalanine

Identifiers

PMID21708003
PMCPMC3133536
OpenAlexW2145408127

What OpenQuestion holds

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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.