Investigating the link between early life stress and multiple long-term health conditions

ISRCTN ISRCTN44060592
DOI https://doi.org/10.1186/ISRCTN44060592
Secondary identifying numbers Earlycause funding 848158
Submission date
29/06/2020
Registration date
15/07/2020
Last edited
26/06/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Other
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Background and study aims
Stress experienced in the early stages of life – from pregnancy to adolescence – is common and pervasive, affecting up to 75% of pregnant women (and the unborn baby) and nearly 50% of children, with long-term consequences for development and health. The aim of this study is to find out whether early life stress, a well-established risk factor for depressive, cardiovascular (heart) and metabolic disorders individually, is a cause of multiple long-term health conditions (multi-morbidity) in these disorders.

Who can participate?
Children and adults participating in the included population studies:
1. Population-based samples of children
2. Adults aged over 55 years
3. Adults aged over 18 years with depression or anxiety

What does the study involve?
Data from a set of human population studies are used to examine the relationship between early life stress and multi-morbidity across the lifespan, identify potential biological markers and quantify the role of modifiable lifestyle factors (e.g. exercise, diet, sleep, smoking, alcohol use).

What are the possible benefits and risks of participating?
In terms of benefits, this study will increase the health literacy of the participants by making them aware of the negative effects of early life stress on health and disease. This is an observational study with no interventions, so there are no risks for the participants.

Where is the study run from?
Rotterdam and Amsterdam (Netherlands), Oulu (Finland) and Bristol (UK)

When is the study starting and how long is it expected to run for?
September 2019 to June 2024

Who is funding the study?
European Commission

Who is the main contact?
1. Karim Lekadir
karim.lekadir@ub.edu
2. Cristian Izquierdo Morcillo
c.izquierdo@ub.edu

Study website

Contact information

Dr Karim Lekadir
Scientific

Gran Via de les Corts Catalanes 585
Barcelona
08007
Spain

ORCiD logoORCID ID 0000-0002-9456-1612
Phone +34 (0)934020852
Email karim.lekadir@ub.edu
Dr Cristian Izquierdo Morcillo
Public

Gran Via de les Corts Catalanes 585
Barcelona
08007
Spain

Phone None provided
Email c.izquierdo@ub.edu

Study information

Study designObservational study that will leverage existing data from a large set of population research studies (e.g. Generation R, ALSPAC, NFBC, Rotterdam, NESDA)
Primary study designObservational
Secondary study designEpidemiological study
Study setting(s)Other
Study typeOther
Scientific titleEarlyCause - causative mechanisms & integrative models linking early life stress to psycho-cardio-metabolic multi-morbidity
Study acronymEarlyCause
Study hypothesisEarlyCause will investigate the hypothesis that early-life-stress (ELS), as a risk factor for depressive, cardiovascular and metabolic disorders individually, is linked to multi-morbidity between these conditions. From a biological point of view, the main hypothesis is that ELS activates a chain of events leading to cellular, molecular, epigenetic and microbial changes which result in dysregulations of processes across tissues. This causative chain would ultimately trigger specific cellular and tissue phenotypes and comorbid pathological traits in the mental, cardiovascular and metabolic domains.
Ethics approval(s)Approved 30/11/2019, European Commission (Directorate-General for Research and Innovation, European Commission, Brussels; Tel: not provided; david.canovas-jorda@ec.europa.eu), no ref provided
ConditionMulti-morbidity between unipolar depression, type 2 diabetes, and coronary heart disease
InterventionThe EarlyCause study will leverage harmonised data from a set of human population studies to examine the relationship between ELS and multi-morbidity across the lifespan, identify potential molecular markers and quantify the protective vs. exacerbating role of modifiable lifestyle factors. These datasets together span from pregnancy to old age, including the well-known Avon Longitudinal Study of Parents and Children (ALSPAC), Generation R Study (GenR), Northern Finland Birth Cohorts (NFBC 1966 and NFBC 1986), Rotterdam Study, and the Netherlands Study of Depression and Anxiety (NESDA). The researchers will make use of correlational multivariate analyses as well as novel latent modelling techniques to model the shared versus unique contribution of ELS on multi-morbid outcomes. The researchers will apply Mendelian randomisation to infer causality using population-based human genetic data., and to establish the molecular mediation of biological markers (DNA methylation, cortisol, inflammation, microbiome) linking ELS exposure to later multi-morbidity. The researchers will also quantify the protective or exacerbating role of modifiable lifestyle factors (e.g. exercise, diet, sleep, smoking, alcohol use) in the relationships of ELS with biological markers and multi-morbidity.
Intervention typeOther
Primary outcome measureCurrent primary outcome measures as of 28/12/2023:
1. Depression assessed using the DSM-IV scale at each round of data collection (every 2-5 years depending on the dataset)
2. Diabetes type 2 assessed using the glycated hemoglobin test at each round of data collection (every 2-5 years depending on the dataset)
3. Coronary heart disease assessed using standard cardiovascular exams (biomarkers, imaging, ECG) at each round of data collection (every 2-5 years depending on the dataset)
4. In NFBC, depressive symptoms were measured using Youth self report (YSR) scale at 16 years in NFBC1986 and using Hopkins Symptoms checklist (HSCL) at 31 and 46 years in NFBC1966

_____

Previous primary outcome measures:
1. Depression assessed using the DSM-IV scale at each round of data collection (every 2-5 years depending on the dataset)
2. Diabetes type 2 assessed using the glycated hemoglobin test at each round of data collection (every 2-5 years depending on the dataset)
3. Coronary heart disease assessed using standard cardiovascular exams (biomarkers, imaging, ECG) at each round of data collection (every 2-5 years depending on the dataset)
Secondary outcome measuresCurrent secondary outcome measures as of 28/12/2023:
EarlyCause will re-use the outcomes already measured by the Generation R, ALSPAC, NFBC, Rotterdam and NESDA studies at each round of data collection (every 2-5 years depending on the study):
1. Depressive symptoms assessed using the Centre for Epidemiological Studies Depression Scale (CESD) at each round of data collection (every 2-5 years depending on the dataset)
2. Metabolic health-related measures such as obesity and glycemic traits
3. Hypertension assessed using blood pressure test (mmHg) at each round of data collection (every 2-5 years depending on the dataset)
_____

Previous secondary outcome measures:EarlyCause will re-use the outcomes already measured by the Generation R, ALSPAC, NFBC, Rotterdam and NESDA studies at each round of data collection (every 2-5 years depending on the study):
1. Depressive symptoms assessed using the Centre for Epidemiological Studies Depression Scale (CESD) at each round of data collection (every 2-5 years depending on the dataset)
2. Glucose level assessed using glycated hemoglobin test at each round of data collection (every 2-5 years depending on the dataset)
3. Hypertension assessed using blood pressure test (mmHg) at each round of data collection (every 2-5 years depending on the dataset)
Overall study start date04/09/2019
Overall study end date30/06/2024

Eligibility

Participant type(s)Mixed
Age groupMixed
SexBoth
Target number of participants70,000
Participant inclusion criteriaCurrent inclusion criteria as of 28/12/2023:
The inclusion criteria are the same as those of the population studies included in EarlyCause:
1. Generation R: Population-based sample of children
2. ALSPAC: Born of a mother resident in former Avon health authority, expected data of delivery between 1st April 1991 and 31st December 1992
3. NFBCs: Pregnant mothers living in the two northernmost province of Finland (Oulu and Lapland). NFBC-1966 included all mothers with expected date of delivery between 1st of January to 31st December 1966 and their offspring with data at birth, 31 and 46 years of age. NFBC-1986 included mothers with expected date of delivery between July 1985 to June 1986 and their offspring with data at birth and 16 years of age.
4. Rotterdam Study: Adults >55 years
5. NESDA: Adults >18 years with DSM-IV diagnosis of depression (minor or major depression, dysthymia) or anxiety

_____

Previous inclusion criteria:
The inclusion criteria are the same as those of the population studies included in EarlyCause:
1. Generation R, ALSPAC, NFBC: Healthy children at birth
2. Rotterdam: Adults > 55
3. NESDA: Adults > 18 with DSM-IV diagnosis of depression (minor or major depression, dysthymia) or anxiety
Participant exclusion criteriaFor NESDA, severe mental health (e.g. psychosis, bipolar disorder, obsessive-compulsive disorder, or severe addiction) or disability
Recruitment start date01/01/1966
Recruitment end date30/05/2020

Locations

Countries of recruitment

  • England
  • Finland
  • Netherlands
  • United Kingdom

Study participating centres

Erasmus Medical Centre Rotterdam
Doctor Molewaterplein 40
Rotterdam
3015 GD
Netherlands
University of Oulu
Pentti Kaiteran katu 1
Oulu
90570
Finland
VU University Medical Center Amsterdam
De Boelelaan 1117
Amsterdam
1081 HV
Netherlands
University of Bath
Claverton Down
Bath
BA2 7AY
United Kingdom

Sponsor information

European Commission
Government

Directorate-General for Research and Innovation
Brussels
1049
Belgium

Phone +32 (0)2 299 11 11
Email David.CANOVAS-JORDA@ec.europa.eu
Website http://ec.europa.eu/index_en.htm
ROR logo "ROR" https://ror.org/00k4n6c32

Funders

Funder type

Government

Horizon 2020 Framework Programme
Government organisation / National government
Alternative name(s)
EU Framework Programme for Research and Innovation H2020, Horizon 2020, Rahmenprogramm Horizont 2020, Programa Marco Horizonte 2020, Programme-cadre Horizon 2020, Programma quadro Orizzonte 2020, Program ramowy Horyzont 2020, Horizont 2020, Horizonte 2020, Orizzonte 2020, Horyzont 2020, Horizon 2020 Framework Programme (H2020), H2020

Results and Publications

Intention to publish date30/06/2025
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planPeer-reviewed international journals such as:
1. Journal of Developmental Origins of Health and Disease
2. International Journal of Epidemiology
IPD sharing planThe datasets generated during and/or analysed during the current study are not expected to be made available due to legal issues, consents and data policies of the included population studies.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol file 07/08/2020 No No
Protocol file 07/08/2020 No No
Protocol article 21/01/2021 26/06/2024 Yes No
Results article Arterial Thickness, Stiffness, and Blood Pressure With Brain Morphology 09/11/2023 26/06/2024 Yes No
Results article Depression, cardiometabolic disease, and their co-occurrence after childhood maltreatment 13/03/2023 26/06/2024 Yes No
Results article Obesity 21/08/2023 26/06/2024 Yes No
Results article anorexia nervosa 01/11/2022 26/06/2024 Yes No
Results article depression prediction 03/04/2024 26/06/2024 Yes No
Results article early-life stress and adolescent psycho-physical health 01/05/2024 26/06/2024 Yes No
Results article maternal glycemic dysregulation during pregnancy and neonatal blood dna methylation 04/03/2022 26/06/2024 Yes No
Results article metabolic Syndrome 20/11/2023 26/06/2024 Yes No
Results article psycho-cardiometabolic multimorbidity 30/06/2023 26/06/2024 Yes No

Additional files

ISRCTN44060592_PROTOCOL_text.pdf
uploaded 07/08/2020
ISRCTN44060592_PROTOCOL_figures.pdf
uploaded 07/08/2020

Editorial Notes

26/06/2024: Publication references added.
24/06/2024: The study contacts were updated.
28/12/2023: The following changes have been made:
1. The overall study end date has been changed from 31/12/2023 to 30/06/2024.
2. The intention to publish date has been changed from 31/12/2023 to 30/06/2025.
3. The primary outcome measures have been changed.
4. The secondary outcome measures have been changed.
5. The participant inclusion criteria have been changed.
6. The plain English summary has been updated to reflect the above changes.
06/12/2023: The public contact was changed.
24/11/2020: The following changes were made to the trial record:
To reflect the fact that historical datasets are being used for this study:
1. The recruitment start date was changed from 01/01/2020 to 01/01/1966.
2. The recruitment end date was changed from 31/12/2023 to 30/05/2020.
07/08/2020: Uploaded protocol (not peer reviewed) Version n/a (2 files).
30/06/2020: Trial's existence confirmed by the European Commission.