Gestational DiabetesNCT05146401
Associations of Plasma Fatty Acid Patterns With Gestational Diabetes Mellitus
An observational study of Gestational Diabetes, run by Liegang Liu.
Trial summary
Background: Limited studies have explored the difference of fatty acid profile between women with and without gestational diabetes mellitus (GDM), and the results were inconsistent. Individual fatty acids tend to be interrelated because of the shared food sources and metabolic pathways. Read more about this study
- Who is it for?
- Ages 21 to 43 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Gestational Diabetes
- What is being tested?
- Plasma fatty acid concentration
- How many people
- 434 participants
- Where
- No sites listed yet
- Study dates
- 1 Aug 2012to 30 Jun 2020
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 21 to 43 years
- Women only
- Healthy volunteers accepted
- Adult
Study population: All the participants enrolled were Chinese women. They gave informed written consent to the study and did not take any medication known to affect glucose tolerance or insulin secretion before participation.
Who may be able to join
- Age ≥ 20 years;
- Gestational age at GDM screening ≥ 24 weeks;
- Singleton pregnancy;
- With enough plasma collected for fatty acids detection.
Who cannot join
- History of diabetes (including but not limited to GDM), cardiovascular disease, cancer or other systemic diseases;
- History of receiving pharmacological treatment known to affect glucose metabolism;
- Incomplete basic information.
About this study
Official title: Associations of Plasma Fatty Acid Patterns During Pregnancy With Gestational Diabetes Mellitus
Background: Limited studies have explored the difference of fatty acid profile between women with and without gestational diabetes mellitus (GDM), and the results were inconsistent. Individual fatty acids tend to be interrelated because of the shared food sources and metabolic pathways. Thus, whether fatty acid patters during pregnancy were related to GDM odds needs further exploration.
Objective: We aim to identify plasma fatty acid patters during pregnancy and their associations with odds of gestational diabetes mellitus (GDM).
Design: A hospital-based case-control study was carried out in urban Wuhan, China from August 2012 to April 2015. Pregnant women who screened for GDM at the outpatient clinics of the Department of Endocrinology, Tongji Hospital were invited to participant in the study. The inclusion criteria were as follows: 1) age ≥ 20 years; 2) gestational age at GDM screening ≥ 24 weeks; 3) singleton pregnancy. We excluded women who met any of the following items: history of diabetes (including but not limited to GDM), cardiovascular disease, cancer or other systemic diseases; pharmacologic treatment or dietary supplement use that might influence glucose or lipids metabolism; accompanied by other pregnancy complications; blood sample hemolysis or insufficiency; incomplete basic information. The diagnosis of GDM can be made if one or more glucose values are above the cut points of 5.1, 10.0 and 8.5 mmol/L at fasting, 1 and 2 h during a 75-gram oral glucose tolerance test (OGTT). Controls were randomly selected and individually matched to cases by age (± 2 years), gestational age (± 2 weeks) and parity. Finally, 217 GDM cases and 217 matched controls were selected in this study. All participants gave written informed consent before enrolling in the study. Fasting blood samples (≥ 8 h overnight fasting) were collected using anticoagulant tubes and centrifuged at 3000 rpm for 5 min. Plasma were separated from blood cells and stored at -80 ℃ for further assay. We measured plasma concentrations of fatty acids by gas chromatography - mass spectrometry, and derived potential fatty acid patterns trough principle components analysis. Conditional logistic regression and restricted cubic spline model were used to evaluate the associations between individual fatty acids or fatty acid patterns and odds of GDM.
- Conditions
- Gestational Diabetes
- Being tested
- Plasma fatty acid concentration
- Keywords
- Fatty acid, Pattern, Gestational diabetes mellitus
- Medical subject headings
- Diabetes, Gestational
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Plasma fatty acid concentrationOther
Plasma concentrations of fatty acids were measured by gas chromatography - mass spectrometry (Agilent 7890B gas chromatography coupled with an Agilent 5977A Series mass spectrometry). Individual fatty acids with relative concentrations ≥ 0.05% were used to derive fatty acid patterns through principle components analysis.
| Study group | Role | What they receive |
|---|---|---|
| Gestational diabetes mellitus | Gestational diabetes mellitus (GDM) was diagnosed according to the American Diabetes Association criteria, which is based on the "one-step" approach recommended by the International Association of Diabetes and Pregnancy Study Groups. All women underwent a 75g OGTT in the morning after an overnight fast, with plasma glucose measurement fasting and at 1 and 2 hours. The criteria for GDM diagnosis was to have at least one abnormal value: Fasting glucose ≥ 5.1 mmol/L (92 mg/dL), 1 h glucose ≥ 10.0 mmol/L (180 mg/dL), 2 h glucose ≥ 8.5 mmol/L (153 mg/dL). Receives: Other: Plasma fatty acid concentration | |
| Healthy pregnant women | Pregnant women with fasting glucose < 5.1 mmol/L (92 mg/dL), 1 h glucose < 10.0 mmol/L (180 mg/dL) and 2 h glucose < 8.5 mmol/L (153 mg/dL) were considered as healthy controls. Controls were randomly selected and individually matched to cases by age (± 2 years), gestational age (± 2 weeks) and parity. Receives: Other: Plasma fatty acid concentration |
What is being measured
The primary outcome is the main question the study is designed to answer.
Gestational diabetes mellitus
Glucose intolerance with onset or first diagnosis during pregnancy. The diagnosis of GDM can be made if one or more glucose values are above the cut points of 5.1, 10.0 and 8.5 mmol/L at fasting, 1 and 2 h during a 75-gram oral glucose tolerance test.
Measured: gestation age ≥ 24 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Dec 2021
- Study start1 Aug 2012
- Primary completion30 Apr 2015
- Study completion30 Jun 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Gestational DiabetesStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Enrolment
- 434 participants (actual)
Sponsor and investigators
- Lead sponsor
- Liegang Liu
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Liegang Liu, Huazhong University of Science and Technology
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05146401
- Sponsor's protocol ID
- PYL202111
- Status last verified
- Nov 2021
- First submitted
- 23 Nov 2021
- Last updated
- 6 Dec 2021
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 6 Dec 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Associations of Plasma Fatty Acid Patterns During Pregnancy With Gestational Diabetes Mellitus
- ClinicalTrials.gov ID
- NCT05146401
- Acronym / sponsor ID
- PYL202111
- Conditions
- Gestational Diabetes
- Keywords
- Fatty acid, Pattern, Gestational diabetes mellitus
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 434 participants (actual)
- Lead sponsor
- Liegang LiuUniversity, hospital or other
- Study start
- 1 Aug 2012 (actual)
- Primary completion
- 30 Apr 2015 (actual)
- Study completion
- 30 Jun 2020 (actual)
- First posted
- 6 Dec 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Background: Limited studies have explored the difference of fatty acid profile between women with and without gestational diabetes mellitus (GDM), and the results were inconsistent. Individual fatty acids tend to be interrelated because of the shared food sources and metabolic pathways. Thus, whether fatty acid patters during pregnancy were related to GDM odds needs further exploration.
Objective: We aim to identify plasma fatty acid patters during pregnancy and their associations with odds of gestational diabetes mellitus (GDM).
Design: A hospital-based case-control study was carried out in urban Wuhan, China from August 2012 to April 2015. Pregnant women who screened for GDM at the outpatient clinics of the Department of Endocrinology, Tongji Hospital were invited to participant in the study. The inclusion criteria were as follows: 1) age ≥ 20 years; 2) gestational age at GDM screening ≥ 24 weeks; 3) singleton pregnancy. We excluded women who met any of the following items: history of diabetes (including but not limited to GDM), cardiovascular disease, cancer or other systemic diseases; pharmacologic treatment or dietary supplement use that might influence glucose or lipids metabolism; accompanied by other pregnancy complications; blood sample hemolysis or insufficiency; incomplete basic information. The diagnosis of GDM can be made if one or more glucose values are above the cut points of 5.1, 10.0 and 8.5 mmol/L at fasting, 1 and 2 h during a 75-gram oral glucose tolerance test (OGTT). Controls were randomly selected and individually matched to cases by age (± 2 years), gestational age (± 2 weeks) and parity. Finally, 217 GDM cases and 217 matched controls were selected in this study. All participants gave written informed consent before enrolling in the study. Fasting blood samples (≥ 8 h overnight fasting) were collected using anticoagulant tubes and centrifuged at 3000 rpm for 5 min. Plasma were separated from blood cells and stored at -80 ℃ for further assay. We measured plasma concentrations of fatty acids by gas chromatography - mass spectrometry, and derived potential fatty acid patterns trough principle components analysis. Conditional logistic regression and restricted cubic spline model were used to evaluate the associations between individual fatty acids or fatty acid patterns and odds of GDM.
Study design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Gestational diabetes mellitus | – | Other: Plasma fatty acid concentrationGestational diabetes mellitus (GDM) was diagnosed according to the American Diabetes Association criteria, which is based on the "one-step" approach recommended by the International Association of Diabetes and Pregnancy Study Groups. All women underwent a 75g OGTT in the morning after an overnight fast, with plasma glucose measurement fasting and at 1 and 2 hours. The criteria for GDM diagnosis was to have at least one abnormal value: Fasting glucose ≥ 5.1 mmol/L (92 mg/dL), 1 h glucose ≥ 10.0 mmol/L (180 mg/dL), 2 h glucose ≥ 8.5 mmol/L (153 mg/dL). |
| Healthy pregnant women | – | Other: Plasma fatty acid concentrationPregnant women with fasting glucose < 5.1 mmol/L (92 mg/dL), 1 h glucose < 10.0 mmol/L (180 mg/dL) and 2 h glucose < 8.5 mmol/L (153 mg/dL) were considered as healthy controls. Controls were randomly selected and individually matched to cases by age (± 2 years), gestational age (± 2 weeks) and parity. |
Who may qualify
- Ages
- 21 to 43 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- All the participants enrolled were Chinese women. They gave informed written consent to the study and did not take any medication known to affect glucose tolerance or insulin secretion before participation.
Key inclusion criteria (4 listed)
- Age ≥ 20 years;
- Gestational age at GDM screening ≥ 24 weeks;
- Singleton pregnancy;
- With enough plasma collected for fatty acids detection.
Key exclusion criteria (3 listed)
- History of diabetes (including but not limited to GDM), cardiovascular disease, cancer or other systemic diseases;
- History of receiving pharmacological treatment known to affect glucose metabolism;
- Incomplete basic information.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Plasma fatty acid concentrationPlasma concentrations of fatty acids were measured by gas chromatography - mass spectrometry (Agilent 7890B gas chromatography coupled with an Agilent 5977A Series mass spectrometry). Individual fatty acids with relative concentrations ≥ 0.05% were used to derive fatty acid patterns through principle components analysis. | Other | Gestational diabetes mellitus, Healthy pregnant women |
Primary outcome
Gestational diabetes mellitus
Time frame: gestation age ≥ 24 weeks
Glucose intolerance with onset or first diagnosis during pregnancy. The diagnosis of GDM can be made if one or more glucose values are above the cut points of 5.1, 10.0 and 8.5 mmol/L at fasting, 1 and 2 h during a 75-gram oral glucose tolerance test.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Dec 2021.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
An observational study of Gestational Diabetes, run by Liegang Liu.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 6 Dec 2021. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Gestational diabetes mellitus (time frame: gestation age ≥ 24 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Dec 2021.