An observational study in Gestatiaonl Diabetes Mellitus, Thyroid Disease Pregnancy and Hyperglycemia in Pregnant Diabetic Patients, sponsored by Shanghai General Hospital, China. Recruiting at 1 site in China. Open to female participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2025-08-15.
Sponsored by Shanghai General Hospital, China · Observational
To explore the relationship between genetic factors, lifestyle, and drug interventions and the occurrence, development, adverse pregnancy outcomes, and postpartum maternal-infant outcomes of gestational endocrine diseases.
Time Perspective: Prospective and retrospective
8,290 studies on the registry are indexed under Diabetes Mellitus; 1,077 are open to participants now.
This study's planned enrollment of 3,000 is above the median of 246 across 1,936 observational studies indexed under Diabetes Mellitus.
Browse Diabetes Mellitus studies →Shanghai General Hospital, China is the lead sponsor of 8 studies on the registry; 7 are open to participants now.
Counted across the registry records on this site, refreshed daily.
The study will include patients who receive routine prenatal care, delivery, and postpartum endocrinology follow-up at Shanghai General Hospital
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Composite adverse maternal and neonatal outcomes associated with gestational endocrine disorders
Unit of Measure: Percentage of pregnancies with ≥ 1 event (%) Description: The composite will be coded as Yes/No. An event is counted if any of the following occurs: preeclampsia, cesarean delivery, premature rupture of membranes, placental abruption, preterm birth, congenital malformations, macrosomia, large for gestational age, small for gestational age, neonatal hypoglycemia, neonatal hyperbilirubinemia, neonatal respiratory distress syndrome, neonatal intensive care unit admission, obstetric trauma or still birth. Data abstracted from electronic medical records.
Time frame: From delivery (Day 0) through the initial birth hospitalization, assessed up to 14 days postpartum.
Postpartum glucose metabolism outcomes in patients with endocrine disorders in pregnancy
Percentage of patients with diabetes mellitus (%) Postpartum glucose metabolism will be assessed using an oral glucose tolerance test (OGTT) to determine the incidence of diabetes mellitus. Data will be collected from blood tests and medical records.
Time frame: From 6 weeks postpartum through long-term follow-up, with assessments at 6 weeks and every 12 months thereafter, for ≥3 years and up to 40 years postpartum.
Postpartum thyroid disease outcomes in patients with endocrine disorders in pregnancy
Unit of Measure: Changes in serum thyroid-stimulating hormone (TSH), free triiodothyronine (FT3), and free thyroxine (FT4) levels (mU/L, pg/mL) Postpartum thyroid disease outcomes will be evaluated by measuring serum thyroid-stimulating hormone (TSH), free triiodothyronine (FT3), and free thyroxine (FT4) levels. Changes in these biomarkers will be used to assess thyroid function recovery or progression of thyroid dysfunction (e.g., hypothyroidism or hyperthyroidism) postpartum. These levels will be compared to baseline values, which include both pre-pregnancy and pregnancy-associated measurements. Data will be obtained from blood tests and medical records.
Time frame: From 6 weeks postpartum through long-term follow-up, with assessments at 6 weeks and every 12 months thereafter, for ≥3 years and up to 40 years postpartum.
Incidence of abnormal glucose metabolism in offspring of women with gestational endocrine diseases
Unit of Measure: Cumulative incidence of abnormal glucose metabolism (%) Abnormal glucose metabolism in offspring will be measured by conducting oral glucose tolerance tests (OGTT) and/or HbA1c tests. Data will be collected from clinical records and blood tests.
Time frame: From 6 weeks postpartum through long-term follow-up, with assessments at 6 weeks and every 12 months thereafter, for ≥3 years and up to 40 years postpartum.
Incidence of thyroid disorders in offspring of women with gestational endocrine diseases
Unit of Measure: Percentage of offspring with thyroid disorders (%) Thyroid disorders in offspring will be diagnosed by measuring serum thyroid-stimulating hormone (TSH), free thyroxine (FT4), and free triiodothyronine (FT3) levels. Data will be obtained from blood tests and medical records.
Time frame: From 6 weeks postpartum through long-term follow-up, with assessments at 6 weeks and every 12 months thereafter, for ≥3 years and up to 40 years postpartum.
Growth Abnormalities in Offspring of Women with Gestational Endocrine Diseases
Unit of Measure: Body Mass Index (BMI) (kg/m²) Growth abnormalities in offspring will be assessed through anthropometric measurements including weight (kg) and height (m). BMI will be calculated using the formula: BMI = weight (kg) / height² (m²). Data will be collected from routine pediatric examinations and medical records.
Time frame: From 6 weeks postpartum through long-term follow-up, with assessments at 6 weeks and every 12 months thereafter, for ≥3 years and up to 40 years postpartum.
Developmental abnormalities in offspring of women with gestational endocrine diseases
Unit of Measure: Percentage of offspring with developmental abnormalities (%) Developmental abnormalities will be assessed through motor skills evaluations (e.g., fine and gross motor skills) and cognitive development assessments. Data will be collected from routine pediatric evaluations and medical records.
Time frame: From 6 weeks postpartum through long-term follow-up, with assessments at 6 weeks and every 12 months thereafter, for ≥3 years and up to 40 years postpartum.
Plan to share: Yes
Time frame: Data will be uploaded to Zenodo and shared, starting 9 months and ending 36 months following article publication
No publications or documents are linked to this record.
Started May 2023 (actual). Primary completion is estimated for Dec 2043, 247 months after the start.
Of 533 non-industry observational studies under Diabetes Mellitus, half reached primary completion within 42 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 175. This study's planned 247 months is above that.
Counting every sponsor, half of 642 studies reached it within 36 months; a quarter within 14 and three quarters within 122.
How these figures are worked out, and which studies are left out of them.
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Shanghai General Hospital, China