NCT02537145

Brief Summary

The aim of this pilot study is to determine the feasibility of Do-It-Yourself studies in pregnant women to detect changes in health parameters by assessing compliance and user experiences of participants. Besides, the measured health will be analysed to increase insight in physiological development in pregnant women.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
16

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Sep 2015

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 28, 2015

Completed
4 days until next milestone

First Posted

Study publicly available on registry

September 1, 2015

Completed
Same day until next milestone

Study Start

First participant enrolled

September 1, 2015

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2017

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2017

Completed
Last Updated

September 6, 2018

Status Verified

September 1, 2018

Enrollment Period

1.8 years

First QC Date

August 28, 2015

Last Update Submit

September 4, 2018

Conditions

Keywords

compliancedo-it-yourself methodologypilothuman microbiome

Outcome Measures

Primary Outcomes (2)

  • compliance (percentage of complete datasets)

    as a measure of the potential of DIY-monitoring in pregnant women

    end of study (3 months after giving birth)

  • Capability of and burden for participants of the use of DIY tools

    as assessed by a questionnaire on user-experience with do-it-yourself devices in an at-home setting

    end of study (3 months after giving birth)

Secondary Outcomes (15)

  • fasting blood glucose

    at enrollment (between w12-15 of pregnancy), baseline (w16 of pregnancy), w18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40 of pregnancy; optionally after delivery in w42, 44, 46, 48, 50, 52

  • body weight

    at enrollment (between w12-15 of pregnancy), baseline (w16 of pregnancy), w18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40 of pregnancy; optionally after delivery in w42, 44, 46, 48, 50, 52

  • physical activity (calories burned, minutes of physical activity, number of steps)

    at enrollment (between w12-15 of pregnancy), baseline (w16 of pregnancy), w18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40 of pregnancy; optionally after delivery in w42, 44, 46, 48, 50, 52

  • blood pressure (diastolic, systolic, heart rate)

    at enrollment (between w12-15 of pregnancy), baseline (w16 of pregnancy), w18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40 of pregnancy; optionally after delivery in w42, 44, 46, 48, 50, 52

  • GPS location

    measured continuously during the entire study

  • +10 more secondary outcomes

Study Arms (2)

Obese pregnant women

20 obese pregnant women (BMI ≥ 30)

Lean pregnant women

20 lean pregnant women (BMI 18,5 - 25)

Eligibility Criteria

Sexfemale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study population consists of 40 women who are between 12 and 15 weeks pregnant at the time of inclusion in the study. In this study, two groups will be compared: 20 obese pregnant women (BMI ≥ 30) and 20 lean pregnant women (BMI 18,5 - 25). All pregnant women will be from Dutch descent (Dutch nationality and culture).

You may qualify if:

  • Pregnant between 12-15 weeks at the start of the study;
  • Healthy as assessed by the Health and Lifestyle questionnaire (P9624 F02);
  • Body mass index:
  • BMI 18,5 - 25 for the lean group
  • BMI ≥ 30 for the obese group;
  • Able to use self-monitoring devices;
  • Voluntary participation;
  • Having given written informed consent;
  • Willing to comply with study procedures;
  • Willingness to share pseudonymised data on measured health parameters with external parties that provide the measuring devices (including MijnEetmeter, Moves and NRC) for reasons of synchronisation with the study database;
  • Willing to accept use of all nameless data, including publication, and the confidential use and storage of all data by TNO;
  • Have internet access at home;
  • Subjects should own a Smartphone with Bluetooth that runs either a recent version of iOS or Android.

You may not qualify if:

  • Use of concomitant medication;
  • Having a history of medical or surgical events that may significantly affect the study outcome, including physical limitations or cardio-vascular events;
  • Having a (history of a) medical condition that might significantly affect the study outcome as judged by the principal investigator and health and life style questionnaire. This includes diabetes type 1 or 2, gastrointestinal dysfunction, diseases related to inflammation, or a psychiatric disorder;
  • Hypertension: systolic blood pressure \>160 mmHg, diastolic blood pressure \>90 mmHg;
  • Having a pacemaker;
  • Previous pregnancy with medical issues (e.g. pre-eclampsia);
  • Reported slimming or medically prescribed diet;
  • Physical, mental or practical limitations in using computerized systems;
  • Alcohol consumption \> 14 units (drinks)/week;
  • Smoking;
  • Reported unexplained weight loss or gain of \> 2 kg in the three months prior to the pre-study screening / pregnancy;
  • Recent blood donation (\<1 month prior to the start of the study);
  • Not willing to give up blood donation during the study;
  • Personnel of TNO and their partner.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Spaarne Gasthuis

Hoofddorp, North Holland, 2134 TM, Netherlands

Location

Biospecimen

Retention: SAMPLES WITH DNA

Finger-prick-blood for dried blood spots will be performed for oral glucose tolerance tests (insuline/c-peptide response profile) and determining protein and lipid metabolism as well as HbA1c. Finger-prick-blood for measurement of glucose and cholesterol using do-it-yourself devices. Saliva and fecal samples for determining gut and oral microbiota (bacteria) by DNA sequencing of bacterial marker genes present in fecal and saliva samples. Hair sample for determining cortisol concentrations over time.

MeSH Terms

Conditions

ObesityPatient Compliance

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsPatient Acceptance of Health CareTreatment Adherence and ComplianceHealth BehaviorBehavior

Study Officials

  • Marlies A van Houten, Dr.

    Spaarne Gasthuis

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Consultant Clinical Trials

Study Record Dates

First Submitted

August 28, 2015

First Posted

September 1, 2015

Study Start

September 1, 2015

Primary Completion

July 1, 2017

Study Completion

December 1, 2017

Last Updated

September 6, 2018

Record last verified: 2018-09

Locations