Evidence map›Paper›PMID 26801980›Full record

Trial reportTrials2016

Effects of the pattern of glucocorticoid replacement on neural processing, emotional reactivity and well-being in healthy male individuals: study protocol for a randomised controlled trial.

Konstantinos Kalafatakis, Georgina M Russell, Catherine J Harmer, Marcus R Munafo, Nicky Marchant, Aileen Wilson, Jonathan C W Brooks, Ngoc J Thai, Stuart G Ferguson, Kirsty Stevenson and 3 more

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Trials, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.5field-weighted citation impact, top 41% 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

8 citing papers in PubMed, 12 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Ultradian rhythmicity of plasma cortisol is necessary for normal emotional and cognitive responses in man.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
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

13 authors at 5 institutions in 2 countries.

Konstantinos KalafatakisHenry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, School of Clinical Sciences, Faculty of Medicine and Dentistry, University of Bristol, Dorothy Hodgkin Building, Whitson Street, Bristol, BS1 3NY, UK. kk13382@bristol.ac.uk.
Georgina M RussellHenry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, School of Clinical Sciences, Faculty of Medicine and Dentistry, University of Bristol, Dorothy Hodgkin Building, Whitson Street, Bristol, BS1 3NY, UK. georgina.russell@bristol.ac.uk.
Catherine J HarmerDepartment of Psychiatry, Medical Sciences Division, University of Oxford, Oxford, OX37JX, UK. catherine.harmer@psych.ox.ac.uk.
Marcus R MunafoMRC Integrative Epidemiology Unit at the University of Bristol, UK Centre for Tobacco and Alcohol Studies, School of Experimental Psychology, University of Bristol, Bristol, BS81TU, UK. marcus.munafo@bristol.ac.uk.
Nicky MarchantHenry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, School of Clinical Sciences, Faculty of Medicine and Dentistry, University of Bristol, Dorothy Hodgkin Building, Whitson Street, Bristol, BS1 3NY, UK. nicky.marchant@bristol.ac.uk.
Aileen WilsonClinical Research and Imaging Centre, University of Bristol, Bristol, BS28DX, UK. aileen.wilson@bristol.ac.uk.
Jonathan C W BrooksClinical Research and Imaging Centre, University of Bristol, Bristol, BS28DX, UK. jon.brooks@bristol.ac.uk.
Ngoc J ThaiClinical Research and Imaging Centre, University of Bristol, Bristol, BS28DX, UK. jade.thai@bristol.ac.uk.
Stuart G FergusonSchool of Medicine, University of Tasmania, Hobart, TAS 7000, Australia. stuart.ferguson@utas.edu.au.
Kirsty StevensonBristol Royal Infirmary, University Hospitals Bristol NHS Foundation Trust, Bristol, BS28HW, UK. kirsty.stevenson@uhbristol.nhs.uk.
Claire DurantClinical Research and Imaging Centre, University of Bristol, Bristol, BS28DX, UK. claire.durant@bristol.ac.uk.
Kristin SchmidtDepartment of Psychiatry, Medical Sciences Division, University of Oxford, Oxford, OX37JX, UK. kristin.schmidt@psych.ox.ac.uk.
Stafford L LightmanHenry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, School of Clinical Sciences, Faculty of Medicine and Dentistry, University of Bristol, Dorothy Hodgkin Building, Whitson Street, Bristol, BS1 3NY, UK. stafford.lightman@bristol.ac.uk.
University Hospitals Bristol NHS Foundation Trust · GBAt Bristol · GBUniversity of Bristol · GBUniversity of Oxford · GBUniversity of Tasmania · AU

Funding

Medical Research Council G0700238Medical Research Council MC_UU_12013/6Medical Research Council MR/J012548/1Medical Research Council MR/J0125481/1Wellcome Trust 089647/Z/09/Z
6 · The paper itself

Abstract

backgroundDeviation from the physiological glucocorticoid dynamics (circadian and underlying ultradian rhythmicity) is a common characteristic of various neuropsychiatric and endocrine disorders as well as glucocorticoid-based therapeutics. These states may be accompanied by neuropsychiatric symptomatology, suggesting continuous dynamic glucocorticoid equilibrium is essential for brain homeostasis. METHODS/

designThe study consists of two parts. The preliminary stage of the study aims to validate (technically and pharmacologically) and optimise three different patterns of systemic cortisol administration in man. These patterns are based on the combinatory administration of metyrapone, to suppress endogenous cortisol production, and concurrent hydrocortisone replacement. The second, subsequent, core part of the study is a randomised, double-blinded, placebo-controlled, crossover study, where participants (healthy male individuals aged 18-60 years) will undergo all three hydrocortisone replacement schemes. During these infusion regimes, we plan a number of neurobehavioural tests and imaging of the brain to assess neural processing, emotional reactivity and perception, mood and self-perceived well-being. The psychological tests include: ecological momentary assessment, P1vital Oxford Emotional Test Battery and Emotional Potentiated Startle Test, Leeds Sleep Evaluation Questionnaire and the visual working memory task (n-back). The neuroimaging protocol combines magnetic resonance sequences that capture data related to the functional and perfusion status of the brain. DISCUSSION: Results of this clinical trial are designed to evaluate the impact (with possible mechanistic insights) of different patterns of daily glucocorticoid dynamics on neural processing and reactivity related to emotional perception and mood. This evidence should contribute to the optimisation of the clinical application of glucocorticoid-based therapeutics.

trial registrationUK Clinical Research Network, IRAS Ref: 106181, UKCRN-ID-15236 (23 October 2013).

Indexed as

Clinical ProtocolsAdolescentAdultBrainCross-Over StudiesEmotionsHormone Replacement TherapyHumansHydrocortisoneMaleMiddle AgedNeuroimagingHydrocortisone

Identifiers

PMID26801980
PMCPMC4724084
OpenAlexW2259161215

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.