Evidence map›Paper›PMID 28549484›Full record

Trial reportTrials2017

The effects of a psychological intervention directed at optimizing immune function: study protocol for a randomized controlled trial.

Lemmy Schakel, Dieuwke S Veldhuijzen, Henriët van Middendorp, Corine Prins, Simone A Joosten, Tom H M Ottenhoff, Leo G Visser, Andrea W M Evers

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Trials, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the 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
1.9field-weighted citation impact, top 14% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Beyond tumor biology: nursing interventions for psychological and immune health in cancer patients.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
    Review
  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

8 authors at 2 institutions in 1 country.

Lemmy SchakelFaculty of Social and Behavioural Sciences, Institute of Psychology, Health, Medical and Neuropsychology Unit, Leiden University, PO Box 9555, 2300 RB, Leiden, The Netherlands. L.Schakel@fsw.leidenuniv.nl.
Dieuwke S VeldhuijzenFaculty of Social and Behavioural Sciences, Institute of Psychology, Health, Medical and Neuropsychology Unit, Leiden University, PO Box 9555, 2300 RB, Leiden, The Netherlands.
Henriët van MiddendorpFaculty of Social and Behavioural Sciences, Institute of Psychology, Health, Medical and Neuropsychology Unit, Leiden University, PO Box 9555, 2300 RB, Leiden, The Netherlands.
Corine PrinsDepartment of Infectious Diseases, Leiden University Medical Centre, Leiden, The Netherlands.
Simone A JoostenDepartment of Infectious Diseases, Leiden University Medical Centre, Leiden, The Netherlands.
Tom H M OttenhoffDepartment of Infectious Diseases, Leiden University Medical Centre, Leiden, The Netherlands.
Leo G VisserDepartment of Infectious Diseases, Leiden University Medical Centre, Leiden, The Netherlands.
Andrea W M EversFaculty of Social and Behavioural Sciences, Institute of Psychology, Health, Medical and Neuropsychology Unit, Leiden University, PO Box 9555, 2300 RB, Leiden, The Netherlands.
Leiden University · NLLeiden University Medical Center · NL

Funding

European Research Council 617700
6 · The paper itself

Abstract

backgroundPrevious research has provided evidence for the link between psychological processes and psychophysiological health outcomes. Psychological interventions, such as face-to-face or online cognitive behavioral therapy (CBT) and serious games aimed at improving health, have shown promising results in promoting health outcomes. Few studies so far, however, have examined whether Internet-based CBT combined with serious gaming elements is effective in modulating health outcomes. Moreover, studies often did not incorporate psychophysiological or immunological challenges in order to gain insight into physiological responses to real-life challenges after psychological interventions. The overall aim of this study is to investigate the effects of a psychological intervention on self-reported and physiological health outcomes in response to immune and psychophysiological challenges. METHODS/

designIn a randomized controlled trial, 60 healthy men are randomly assigned to either an experimental condition, receiving guided Internet-based (e-health) CBT combined with health-related serious gaming elements for 6 weeks, or a control condition receiving no intervention. After the psychological intervention, self-reported vitality is measured, and participants are given an immunological challenge in the form of a Mycobacterium bovis Bacillus Calmette-Guérin (BCG) vaccination. One day after the vaccination, participants are asked to perform several psychophysiological tasks in order to explore the effects of the psychological intervention on participants' stress response following the immune challenge. To assess the delayed effects of vaccination on self-reported and physiological health outcomes, a follow-up visit is planned 4 weeks later. Total study duration is approximately 14 weeks. The primary outcome measure is self-reported vitality measured directly after the intervention. Secondary outcome measures include inflammatory and endocrine markers, as well as psychophysiological measures of heart rate and skin conductance in response to the psychophysiological tasks after the BCG vaccination. DISCUSSION: The innovative design features of this study - e.g., combining guided e-health CBT with health-related serious gaming elements and incorporating immunological and psychophysiological challenges - will provide valuable information on the effects of a psychological intervention on both self-reported and physiological health outcomes. This study will offer further insights into the mechanisms underlying the link between psychological factors and health outcomes and is anticipated to contribute to the optimization of health care strategies.

trial registrationNederlands Trial Register, NTR5610 . Registered on 4 January 2016.

Indexed as

CognitionCognitive Behavioral TherapyImmunogenicity, VaccineInternetMental HealthVideo GamesAdolescentAdultBCG VaccineBiomarkersClinical ProtocolsGalvanic Skin ResponseHealth StatusHealthy VolunteersHeart RateHumansBCG VaccineBiomarkersBCG vaccinationCognitive behavioral therapyCytokinese-HealthImmune systemPsychophysiologySerious gamingStress

Identifiers

PMID28549484
PMCPMC5446709
OpenAlexW2616917740

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.