International Navigator Hypoglycaemia Study

NCT ID: NCT00843609

Last Updated: 2010-02-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

122 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-10-31

Study Completion Date

2010-01-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The purpose of this study is to determine if the incidence and duration of hypoglycaemia (low blood sugar) is reduced through the use of the FreeStyle Navigator Continuous Glucose Monitoring System in people with Type 1 diabetes mellitus at good glycemic control. The investigators hypothesize that the access to real-time continuous glucose concentration data along with alarms will enable people with type 1 diabetes at reasonable metabolic control to reduce the time spent in hypoglycaemia.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Background:

Real-time continuous glucose monitoring is expected to allow patients to reduce glycaemic fluctuations and to improve their ability to achieve tight glycaemic control without an increase in the incidence or fear of hypoglycaemia through the availability of high fidelity real-time glucose data and alarms throughout the day. As well as in adults, this may be particularly important in both children and adolescents with type 1 diabetes mellitus (T1DM).

Study Overview:

This is a multicentre, prospective, randomised, controlled, intervention study, being conducted at 3 study centres; Ljubljana in Slovenia, Tel Aviv in Israel and Stockholm in Sweden.

The aim is to enroll 100 subjects (50 adult and 50 paediatric), but enrolling up to 120 eligible subjects to allow for dropouts. The subject population will be randomly assigned 50:50 to either the control group or intervention group.

Subjects will be asked to participate for 7 months, consisting of a one-month 'run-in' period on SMBG followed by a 6-month test period. Enrolment will take place within a 16-week period. A blood sample will be taken for centralized baseline measurement of HbA1c. To be included in the study a subject must have an HbA1c level at inclusion below 7.5 % All subjects will undergo a one-month run-in period. Each subject will be given a FreeStyle blood glucose meter and strips to perform self monitoring of blood glucose (SMBG) according to their standard glycaemic management regime, as advised by their health care professional (HCP).

Subjects will then be required to return to the clinic at the end of the run-in period to have another blood sample taken for centralized measurement of HbA1c and to be randomly assigned to Group 1 (intervention) or Group 2 (control) for the next 6-month test period.

Group 1 will be required to use the FreeStyle Navigator CGM to manage their glycaemic control, wearing individual sensors for a series of five day durations, for the next six months.

Group 2 will continue in the study for the next 6 months using SMBG to manage their glycaemic control with the FreeStyle meter and strips provided. Every second week the subject will wear a 'masked' FreeStyle Navigator sensor for 5 days. Subjects will be encouraged to alternate the days that they wear the FreeStyle Navigator sensors, so that data is obtained from days in both the week and weekend.

Subjects will return to the clinic at 3 months and 6 months (after entering the study test-phase) for centralized HbA1c measurement. Subjects (and parents of paediatric subjects) within the intervention group will also be asked to complete a subject satisfaction questionnaire on their experience with the device.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Diabetes Mellitus, Type 1 Hypoglycemia

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Continuous glucose monitoring

Continuously wearing the FreeStyle Navigator continuous glucose monitor, displaying real-time glucose values and sounding alarms

Group Type EXPERIMENTAL

Navigator continuous glucose monitor (Freestyle Navigator®)

Intervention Type DEVICE

Continuous use of the Free Style Navigator for monitoring of glycemia in patients with type 1 diabetes with HbA1c below 7.5 %

Control

Using SMBG with standard routine instructions

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Navigator continuous glucose monitor (Freestyle Navigator®)

Continuous use of the Free Style Navigator for monitoring of glycemia in patients with type 1 diabetes with HbA1c below 7.5 %

Intervention Type DEVICE

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

Free Style Navigator

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Subject with Type 1 diabetes (\> 1year since diagnosis)
* CSII or MDI
* HbA1c at inclusion \< 7.5 %
* No concomitant diseases that influence metabolic control
* No current use of CGM

Exclusion Criteria

* Subject has known allergy to medical grade adhesives
* Subject has a medical condition, which in the Investigator's opinion, may compromise patient safety
* Subject is participating in another study of a glucose monitoring device or drug that could affect glucose measurements or glucose management
* Subject is currently using another CGM device or has used real-time continuous glucose monitoring in the previous 4 weeks
* Subject is receiving peritoneal dialysis solutions containing icodextrin
* Female subject who is pregnant or planning to become pregnant within the planned study duration
Minimum Eligible Age

10 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Karolinska Institutet

OTHER

Sponsor Role collaborator

Schneider Children's Medical Center, Israel

OTHER

Sponsor Role collaborator

University Medical Centre Ljubljana

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

UMC Ljubljana

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Tadej Battelino, Prof.

Role: PRINCIPAL_INVESTIGATOR

UMC Ljubljana

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Schneider Children's Medical Center of Israel

Petah Tikva, , Israel

Site Status

UMC Ljubljana - University Children's Hospital

Ljubljana, , Slovenia

Site Status

Karolinska Institutet

Stockholm, , Sweden

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Israel Slovenia Sweden

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

INHS1

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Accuracy of Freestyle Libre
NCT02734745 UNKNOWN NA