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Effect of Adding Metformin to Insulin Therapy on Pregnancy Outcomes in Women With Uncontrolled Type I Diabetes.

Effect of Adding Metformin to Insulin Therapy in Pregnant Women With Type I Diabetes as Regards Pregnancy Outcome

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03928340
Enrollment
80
Registered
2019-04-26
Start date
2019-04-29
Completion date
2020-03-29
Last updated
2020-05-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Type1 Diabetes Mellitus

Brief summary

A randomized controlled clinical trial will be conducted in KasrELAiny hospitals, Cairo University and Beni-Suef University Hospital, including 80 uncontrolled diabetic pregnant women (type I) in the 3rd trimester (28-32 weeks of pregnancy) divided equally into study group and control group, to compare the usage of both metformin and insulin instead of using insulin alone. Group assignment will be randomized by computer program.

Detailed description

A total of 80 uncontrolled diabetic pregnant patients in the 3rd trimester seeking medical advice in Beni-Suef University Hospital and meet the eligibility criteria, are approached about participation in the trial and given information pamphlets describing the study. The patients are asked to sign a consent form and will be assigned to one of the 2 groups: Group A (study group); will include 40 patients who will be treated with metformin (1 gm twice daily (with the 2 main meals)), combined with insulin therapy Group B (control group); will include 40 patients who will be treated with insulin alone. (Insulin dosage will be adjusted according to endocrinological recommendations) All patients will be managed according to NICE guidelines for diabetes with pregnancy (2015) Maternal assessment * Full history taking Baseline medical history is obtained along with other baseline demographics and concomitant medications including insulin regimen and dose. * Thorough clinical examination Maternal weight, height and blood pressure measured and recorded. * Laboratory investigations; * Routine labs: CBC, coagulation profile, liver and kidney function at time of participation, 28-32 weeks of gestation especially renal parameter serum Creatinine. * HbA1c at time of 1st examination. * FBS, 2h post prandial blood sugar will be done weekly from time of participation till time of delivery * Fundus examination for early detection of retinal affection at Ophthalmology clinic Follow up: 1. Fetal weight gain weekly 2. Maternal weight gain weekly Accordingly: 1. Uncontrolled cases will follow up weekly in the High Risk Pregnancy outpatient clinic until 36 weeks and then admitted to High risk pregnancy department for termination of pregnancy o Fetal surveillance will be done by ;CTG weekly, Ultrasound weekly and Fetal kick count daily 2. Resistant uncontrolled cases will be admitted to high risk pregnancy department where capillary blood sugar will be measured 7 times daily Fetal surveillance will be done by ; CTG Daily, Ultrasound every 3 days and Fetal kick count daily Assessment of Patients at time of termination by: 1. Fasting blood sugar , 2 hours post prandial blood sugar and HBA1C 2. Routine preoperative labs. CBC, coagulation profile, liver and kidney function 3. Fetal weight 4. Maternal weight Neonatal assessment after delivery include the following; APGAR score, neonatal weight, incidence of transient tachypnea of newborn (TTN), acute respiratory distress syndrome (ARDS), neonatal hypoglycemia and NICU admission.

Interventions

DRUGMetformin

40 patients will be treated with metformin (1 gm twice daily (with the 2 main meals)), combined with insulin therapy

DRUGInsulin

40 patients will be treated with insulin alone. (Insulin dosage will be adjusted according to endocrinological recommendations)

Sponsors

Amal Kotb Abdallah
CollaboratorUNKNOWN
Amir Gabr
CollaboratorUNKNOWN
Mohamed Abdeltawwab Mahmoud
CollaboratorUNKNOWN
Kasr El Aini Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 45 Years
Healthy volunteers
No

Inclusion criteria

* Diabetic pregnant patients with type one diabetes and no other chronic disorders * Patients on insulin in the 3rd trimester of pregnancy (on insulin therapy since start of gestation) * Patients pregnant in single living fetus with no apparent congenital anomalies * Haemoglobin A 1 C (HbA1c) level between 7% to 11% * All patients have done a dating ultrasound to confirm gestational age, viability and rule out any abnormality

Exclusion criteria

* Patients with type 2 or gestational diabetes * Patients with intolerance or hypersensitivity to metformin * Patients with congestive heart failure or a history of congestive heart failure * Patients with renal insufficiency * Patients having current significant gastrointestinal problems such as severe vomiting requiring intravenous fluids or hospitalization * Presence of acute or chronic metabolic acidosis, including diabetic ketoacidosis, a history of diabetic ketoacidosis or history of lactic acidosis * Patients with liver impairment * Patients with known higher order pregnancies (twins, triplets, etc.) * Patients having a known potentially fetal lethal anomaly

Design outcomes

Primary

MeasureTime frameDescription
HbA1c12 weeksthe change in level of glycosylated haemoglobin
capillary glucose12 weeksthe change in level of glucose in capillary blood
fasting blood sugar measurement.12 weeksthe change in level of glucose in venous blood after fasting for 8 hours
2 hours post prandial blood sugar measurement.12 weeksthe change in level of glucose in venous blood 2 hours after meal

Secondary

MeasureTime frameDescription
intra uterine fetal death (IUFD)12 weeksThe number of patients with death of fetus after 20 weeks of gestation
neonatal weight12 weeksThe change in neonatal weight in kilograms
preterm birth12 weeksThe number of patients giving birth berfore 37 completed weeks
Maternal weight gain12 weeksthe change in mothers' weight in kilograms
neonatal hypoglycemia12 weeksthe number of neonates with plasma glucose level below less than 45 mg/dL (2.5 mmol/L)
neonatal Intensive care admission12 weeksthe number of neonates with neonatal Intensive care admission
neonatal respiratory distress12 weeksthe number of neonates with neonatal respiratory distress
weekly fetal weight gain measured by ultrasound12 weeksthe change of fetal weight measured by ultrasound
insulin requirements12 weeksthe change in dose of insulin taken by patient
attacks of maternal hypoglycemia12 weeksNumber of patients with plasma glucose level below 65 mg/dl

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026