AzTrials
AzTrials

Type1 Diabetes MellitusNCT05928260

Comparison of Real-time CGMS With Intermittently-scanned CGMS in Adolescents and Adults With Type 1 Diabetes Mellitus

A study testing Medtronic Guardian Connect Sensor 3, Abott Freestyle Libre Sensor and Self blood Glucose monitoring by a glucometer in people with Type1 Diabetes Mellitus, run by Post Graduate Institute of Medical Education and Research, Chandigarh at 1 site in India.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
Search all trials

Trial summary

Type 1 Diabetes Mellitus (T1DM) is characterized by absolute insulin deficiency. Despite multiple daily insulin injections, glycemic targets are usually not achieved in T1DM patients.Use of continuos glucose monitoring system (CGMS) is associated with improvement in glycemic control and reduction in glycemic… Read more about this study

Who is it for?
Ages 15 to 40 years
Conditions the study is for
Type1 Diabetes Mellitus
What is being tested?
Medtronic Guardian Connect Sensor 3, Abott Freestyle Libre Sensor and Self blood Glucose monitoring by a glucometer
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
80 participants
Where
1 siteIndia
Study dates
10 Aug 2023to Mar 2024
Phase
Interventional
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 15 to 40 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Adolescents and adults aged 15-40 years with Type-1 Diabetes mellitus defined by any of the following; i. Diabetic Ketoacidosis or ketonemia or ketonuria at diagnosis with insulin dependence for survival since diagnosis OR ii. Insulin dependence for survival since diagnosis and any one of the following autoantibody positivity: GAD-65 or IA-2
  • Patients on Basal bolus regimen (Glargine as basal and lispro /Aspart /Glulisine as bolus);
  • Duration of Diabetes > 2 years;
  • Insulin dose requirement of at least 0.5U/kg
  • HbA1c 8%-12%;
  • Gold score<4;
Show all 11Show fewer
  • No previous experience with rt-CGMS and/or is-CGMS;
  • Euthyroid status;
  • If hypothyroid, then on stable dose of Levothyroxine for last 3 months with normal T4 level;
  • Urine albumin creatinine ratio<300 mg/g of Creatinine;
  • Those willing to give informed consent prior to enrolment.

Who cannot join

  • LADA or Secondary Diabetes
  • eGFR<60ml/min/1.73m2
  • Celiac disease;
  • Hb<12g/dl for males and <11g/dl for females;
  • Hypoglycemia unawareness defined by Gold score≥4;
  • HbA1c>12%;
Show all 13Show fewer
  • Diabetic Ketoacidosis in the previous 3 months;
  • Severe Non proliferative Diabetic retinopathy/Proliferative Diabetic Retinopathy/Macular edema;
  • Pregnancy;
  • Lactation;
  • Willing to become pregnant during study;
  • Requiring MRI for any existing condition;
  • Any other chronic illness.

Trial locations and contacts

1 site in 1 country.

Sanjay Bhadada, DM Endo contact

+919876602448

bhadadask@rediffmail.com

Soham Mukherjee, DM Endo contact

+919914743222

drsoham.mukherjee@googlemail.com

India1 site, 1 recruiting
  • Post Graduate Institute of Medical Education and Research

    Chandigarh, 160012

    Sanjay Bhadada, DM Endo, +919876602448, bhadadask@rediffmail.com

    Recruiting

Other trials in India

About this study

Official title: Comparison of Real-time CGMS With Intermittently-scanned CGMS in Adolescents and Adults With Type 1 Diabetes Mellitus: an Open Label Randomised Control Cross Over Study

Type 1 Diabetes Mellitus (T1DM) is characterized by absolute insulin deficiency. Despite multiple daily insulin injections, glycemic targets are usually not achieved in T1DM patients.Use of continuos glucose monitoring system (CGMS) is associated with improvement in glycemic control and reduction in glycemic variability in T1DM subjects. real-time CGMS (rt-CGMS) and intermittently scanned CGMS (is-CGMS) are the newer CGMS technologies. Previous studies have shown that in T1DM patients rt-CGMS is better than is-CGMS for glycemic control and reducing hypoglycemic episodes in patients with impaired awareness of hypoglycemia, but in patients with normal hypoglycemic awareness this is not well established.

This study is a randomized control clinical cross over study of 6 months duration in patients of T1DM having normal hypoglycemic awareness, with age 15-40 years with a HbA1c range of 8-12%. Following a training period of 2 weeks, 80 participants will be randomized into 3 arms in a ratio of 1:1:2 in rt-CGMS, is-CGMS and SMBG (self monitoring of blood glucose) arms, respectively. For the first two groups Medtronic Guardian Connect Sensor 3 and Abott Freestyle Libre Sensor 2will be applied for 2 weeks, respectively; followed by a crossover at 3 months withapplication of is-CGMS and rt-CGMS, respectively in these groups for a further 2 weeks period. For rest of the study duration these patients in the rt-CGMS and is-CGMS group will be monitored through SMBG. The 3rd SMBG group will act as control. Short term blood glucose control will be assessed by Fructosamine assay in the 2 CGMS groups and long term control by HbA1C.

Read the detailed description

Type 1 Diabetes Mellitus (T1DM) is characterized by absolute insulin deficiency. Despite multiple daily insulin injections, glycemic targets are usually not achieved in T1DM patients. Use of continuos glucose monitoring system (CGMS) is associated with improvement in glycemic control and reduction in glycemic variability in T1DM subjects. Real-time CGMS (rt-CGMS) and intermittently Scanned CGMS (is-CGMS) are the newer CGMS technologies. Previous studies have shown that in T1DM patients rt-CGMS is better than is-CGMS for glycemic control and reducing hypoglycemic episodes in patients with impaired awareness of hypoglycemia, but in patients with normal hypoglycemic awareness this is not well established.

This study is a randomized control clinical study of 6 months duration in patients of T1DM having normal hypoglycemic awareness, with age 15-40 years with a HbA1c range of 8-12%. Following a training period of 2 weeks, 80 participants will be randomized into 3 arms in a ratio of 1:1: 2 into rt-CGMS, is-CGMS arms and SMBG(Self Monitoring of Blood Glucose) arms respectively. For the rt-CGMS group Medtronic Guardian Connect sensor 3 will be applied for 2 weeks and and for is-CGMS group Free Style Libre will be applied for 2 weeks. The participants randomized into the 3rd group shall do self monitoring of blood glucose(SMBG) throughout the study duration of 6 months. Those participants randomized into rt-CGMS and is-CGMS groups after the end of 2 weeks will also monitor their blood glucose by SMBG till the end of 3 months.The frequency of SMBG for all these groups would be - 4 times a day( premeal blood glucose and one post meal blood glucose on rotational basis) on weekdays and 7 times on Sundays(3 times pre meals, 3 times 2 hrs post meals and once at 3 am). At the end of 3 months participants in the rt-CGMS group will undergo crossover to is-CGMS group and vice versa whereas participants in SMBG group will remain in the same arm till the end of the study(6 months).Short term blood glucose control will be assessed by Fructosamine assay after 2 weeks of CGMS application and long term control by HbA1C at the end of 3 months and 6 months. All glycemic parameters(like Time in Range, Time below Range and Time in Range will be compared in both CGMS groups before and after cross-over and both these arms will be compared with SMBG for all the outcomes.Quality of life will also be assessed in these groups by using QOLID questionnaire.

Being tested
Medtronic Guardian Connect Sensor 3, Abott Freestyle Libre Sensor, Self blood Glucose monitoring by a glucometer

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Medtronic Guardian Connect Sensor 3Device

    This is a real-time CGMS which transmits all the blood glucose readings into the application downloaded in a device continuously and also gives alarms and alerts to the person.

  • Abott Freestyle Libre SensorDevice

    This system is an is-CGMS in which the participant gets his blood glucose only when the device is scanned.

  • Self blood Glucose monitoring by a glucometerOther

    In this all patients will check their blood glucose using a needle prick and glucometer at pre-specified intervals.

Study groups in NCT05928260
Study groupRoleWhat they receive
Real time CGMS(rt-CGMS)Active comparatorMedtronic Guardian Connect sensor 3 will be applied for 2 weeks at the beginning of this study in this arm for blood glucose monitoring and insulin dose adjustments for glycemic control.
Receives: Device: Medtronic Guardian Connect Sensor 3
Intermittently scanned CGMS(is-CGMS)Active comparatorAbott Freestyle Libre Sensor will be applied for 2 weeks at the beginning of this study in this arm for blood glucose monitoring and insulin dose adjustments for glycemic control.
Receives: Device: Abott Freestyle Libre Sensor
Self Monitoring of Blood Glucose(SMBG)Placebo comparatorThis group will monitor blood glucose using glucometer and needle pricks throughout the study duration and insulin doses will be adjusted based on these readings as per the standard management of Type-1 Diabetes Mellitus patients endorsed by American Diabetic Association in 2023.
Receives: Other: Self blood Glucose monitoring by a glucometer

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. HbA1c

    Composite outcome of blood glucose control over the preceding 3 months at time=3 months from the start of the study, It will be measured in % using VARIANTII TURBO Hemoglobin Testing System- Bio Rad.

    Measured: 3 months

Secondary outcomes (7)
  1. HbA1c

    Composite outcome of blood glucose control over the preceding 3 months at time=6months from the start of the study.It will be measured in % using VARIANTII TURBO Hemoglobin Testing System- Bio Rad.

    Measured: 6 months

  2. Fructosamine levels in the CGMS groups

    • before the application of Ist device and immediately after the end of 2 weeks at the beginning of the study and at the time of crossover(3 months from the start of the study)immediately before and after 2 weeks of application of 2nd device. This will be done only in rt-CGMS and is-CGMS arms.It will be measured in micromole per litre using Roche cobas FRA colorimetric system in the plasma with a measuring range between 14-1000 micromole per litre.

    Measured: At baseline , 2 weeks, 3 months and 3 months 2 weeks.

  3. Mean sensor glucose

    Assessment of mean glucose in mg/dl will be done from the CGMS i.e. from the Medtronic Guardian Connect Sensor 3 in the real-time CGMS group and from the Abott Free Style Libre Sensor intermittently-scanned CGMS group.

    Measured: After the first device(2 weeks) and after 2nd device(3 months 2 weeks)

  4. Standard deviation of Sensor Glucose

    It is a measure of deviation of blood glucose values from the mean which will be obtained from blood glucose readings from the CGMS i.e. from the Medtronic Guardian Connect Sensor 3 in the real-time CGMS group and from the Abott Free Style Libre Sensor intermittently-scanned CGMS group. It will be measured in mg/dl in both the real time-CGMS and intermittently scanned CGMS groups.

    Measured: After the first device(2 weeks) and after 2nd device(3 months 2 weeks)

  5. Coefficient of Variation(CV)

    It is a measure of blood glucose variability over a period of time derived from the Mean blood glucose and Standard Deviation of blood glucose obtained from the CGMS, it will be measured as percentage from the CGM sensor i.e. from the Medtronic Guardian Connect Sensor 3 in the real-time CGMS group and from the Abott Free Style Libre Sensor intermittently-scanned CGMS group.Higher the coefficient of variation more is the risk for microvascular complications of diabetes.Stable blood glucose should have Coefficient of Variation <36%.

    Measured: After the first device(2 weeks) and after 2nd device(3 months 2 weeks)

  6. Median Amplitude of Glycemic Excursions(MAGE)

    It is the arithmetic mean of the amplitude of the blood glucose excursions that are greater than the Standard Deviation of the glucose values. It is calculated from the blood glucose values provided from the CGMS i.e. from the Medtronic Guardian Connect Sensor 3 in the real-time CGMS group and from the Abott Free Style Libre Sensor intermittently-scanned CGMS group.It is measured in millimoles per litre and will be calculated in both real-time CGMS and intermittently scanned CGMS groups using Easy GV software.

    Measured: After the first device(2 weeks) and after 2nd device(3 months 2 weeks)

  7. Quality of Life

    This will be assessed in all the 3 groups using Quality of Life Instrument for Indian Diabetes Patients(QOLID) questionnaire. It consists of 34 items covering eight domains with scores as below. It uses a standard Likert scale across all questions.Minimum possible overall score is 34 and maximum possible overallscore is 175.Details as follows- role limitation due to physical health (6 - 30); physical endurance (6 - 30); general health (3 - 15); treatment satisfaction (4 - 20); symptom frequency ( 3 - 15); financial worries ( 4 - 20); mental health ( 5 - 25) and diet advice satisfaction( 3 - 15). Higher the score better the quality of life in that domain.

    Measured: At Baseline and 3 months.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Jul 2023
  2. Study start10 Aug 2023
  3. Primary completionMar 2024 (estimated)
  4. Study completionMar 2024 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
80 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05928260
Sponsor's protocol ID
2649-01/2023
Status last verified
Aug 2023
First submitted
30 May 2023
Last updated
21 Aug 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Medtronic Guardian Connect Sensor 3, Abott Freestyle Libre Sensor and Self blood Glucose monitoring by a glucometer in people with Type1 Diabetes Mellitus, run by Post Graduate Institute of Medical Education and Research, Chandigarh at 1 site in India.

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 11 inclusion and 13 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: status not confirmed, as of the sponsor's last update on 21 Aug 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in India. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. 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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Sanjay Bhadada, DM Endo (+919876602448, bhadadask@rediffmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

HbA1c (time frame: 3 months). 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 21 Aug 2023.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in