Impact of a device that continuously measures glucose levels and patient education using written information and a consultation with a physician specialising on diabetes on patients with prediabetes identified by point-of-care tests in community pharmacies
| ISRCTN | ISRCTN74492936 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN74492936 |
| Sponsor | Medical University of Vienna |
| Funders | Austrian Chamber of Pharmacists, Roche |
- Submission date
- 10/04/2026
- Registration date
- 10/04/2026
- Last edited
- 10/04/2026
- Recruitment status
- Not yet recruiting
- Overall study status
- Ongoing
- Condition category
- Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year
Plain English summary of protocol
Not provided at time of registration
Contact information
Dr Christian Schoergenhofer
Scientific, Principal investigator, Public
Scientific, Principal investigator, Public
Währinger Gürtel 18-20
Vienna
1090
Austria
| 0000-0002-2286-1077 | |
| Phone | +43 (0)14040029810 |
| christian.schoergenhofer@meduniwien.ac.at |
Study information
| Primary study design | Interventional |
|---|---|
| Allocation | Randomized controlled trial |
| Masking | Open (masking not used) |
| Control | Placebo |
| Assignment | Parallel |
| Purpose | Prevention, Screening, Treatment |
| Scientific title | Impact of continuous glucose monitoring and patient education on patients with prediabetes identified by point-of- care tests in community pharmacies |
| Study acronym | CGM-Pharm |
| Study objectives | 1. To investigate the effects of continuous glucose monitoring and patient education on HbA1c% concentrations in patients with prediabetes. 2. To investigate the number of patients with elevated HbA1c levels in point-of-care screening tests in community pharmacies (>5.7%; 5.7-6.4%; ≥6.5%) 3. To investigate the effects of continuous glucose monitoring and patient education on various glucose indices in patients with prediabetes (e.g., time in range, time above range, estimated HBA1c%, mean glucose, continuous overall net glycemic action [CONGA, 1h-, 2h-, 4h-based], standard deviation, coefficient of variability, mean amplitude of glycemic excursions [MAGE], etc). 4. To investigate the successful referral rate to treating physicians in patients with HbA1c levels compatible with diabetes (≥6.5%) when using short-message-service-based reminders 5. To investigate the successful referral rate to treating physicians in patients with HbA1c levels compatible with prediabetes (5.7-6.4%), when using short-message-service-based reminders 6. To semiquantitatively assess the patient experiences with continuous glucose monitoring and the consultation |
| Ethics approval(s) |
1. Approved 08/04/2026, Ethics committee of the city of Vienna (Thomas-Klestil-Platz 8/2, TownTown - Eingang: 3, Vienna, 1030, Austria; +43 (0)1 4000-87754; ethikkommission@ma15.wien.gv.at), ref: EK_25_251_0326 2. Approved 27/02/2026, Ethics Committee of the Medical University of Vienna (Borschkegasse 8b/E06, Vienna, 1090, Austria; +43 (0)1 4040021470; ethik-kom@meduniwien.ac.at), ref: 2346/2025 |
| Health condition(s) or problem(s) studied | Prediabetes defined as having an HbA1c of ≥5.7% and ≤6.4% |
| Intervention | Randomization will be conducted with a web-based program available at https://www.meduniwien.ac.at/randomizer using permuted blocks of variable size. A continuous glucose measurement sensor will be applied in the control group after randomization and after 4-6 weeks. Furthermore, patients will receive written information on prediabetes. After 4-9 days of wearing the sensor, a phone consultation with a diabetes specialist will be conducted, in which blood sugar levels and their relationship with food intake will be explained and discussed. In the control group, patients will receive written information at the beginning of the study, a sensor after 3 months and a phone consultation. |
| Intervention type | Mixed |
| Primary outcome measure(s) |
|
| Key secondary outcome measure(s) |
|
| Completion date | 13/04/2028 |
Eligibility
| Participant type(s) | |
|---|---|
| Age group | Mixed |
| Lower age limit | 18 Years |
| Upper age limit | 100 Years |
| Sex | All |
| Target sample size at registration | 100 |
| Key inclusion criteria | 1. ≥18 years of age 2. Screening is recommended by the Austrian Diabetes Society: >45 years of age, or >35 years of age with ≥1 risk factor: 2.1. First-degree relatives with diabetes 2.2. BMI ≥25 kg/m² (or ≥23 kg/m² for people with Asian descent) 2.3. Metabolic syndrome 2.4. Arterial hypertension 2.5. Dyslipidemia 2.6. Steatosis hepatis 2.7. History of gestational diabetes 2.8. Polycystic ovary syndrome For Interventional Trial: 1. HbA1c% of ≥5.7% and ≤6.4% 2. Willingness to participate in the study and comply with the study’s requirements: 2.1. To wear a continuous glucose monitoring sensor for the projected time (maximum 14 days) 2.2. To share quantified glucose concentrations with the study team 2.3. To participate in all planned visits within the planned time-frame 2.4. To document their food intake during CGM periods (e.g., via taking photos or notes) 2.5. To have a smartphone |
| Key exclusion criteria | For Screening Part: 1. Prior diagnosis with prediabetes or diabetes 2. Treatment with antidiabetic drugs For Interventional Trial: 1. Inability to comply with the trial’s requirements 2. Skin conditions or prohibiting the use of a glucose monitor (wounds, eczema, dermatitis, infections, sunburns, etc) 3. Allergies or intolerances against the sensor or its materials/constituents, e.g., allergies against acrylic adhesive, isobornyl acrylate (IBOA), polyurethane, epoxy resins, plaster and tapes 4. Pregnancy or breastfeeding 5. Planned magnetic resonance imaging or computed tomography scans during the times when the CGM should be worn 6. Planned treatment with diathermy 7. Pregnancy – females with an ongoing pregnancy with prediabetes must not participate in the trial 8. Intake of methyldopa or high doses of Vitamin C (>500 mg/day or intravenous Vitamin C) 9. Intake of systemic corticosteroids |
| Date of first enrolment | 13/04/2026 |
| Date of final enrolment | 13/04/2027 |
Locations
Countries of recruitment
- Austria
Study participating centres
Medical University of Vienna, Department of Clinical Pharmacology
Währinger Gürtel 18-20
1090
1090
Austria
1090
1090
Austria
Apotheke Trillerpark
Trillergasse 4/16
Vienna
1210
Austria
Vienna
1210
Austria
Mariatroster Apotheke "Zum hl. Ulrich"
Burggasse 2
Vienna
1070
Austria
Vienna
1070
Austria
Siebenbrunnen Apotheke
Siebenbrunnengasse 32
Vienna
1050
Austria
Vienna
1050
Austria
Marien-Apotheke
Schmalzhofgasse 1
1060
1060
Austria
1060
1060
Austria
Columbus Apotheke
Favoritenstraße 73
Vienna
1100
Austria
Vienna
1100
Austria
Ludwigs-Apotheke
Simmeringer Hauptstraße 128
1110
1110
Austria
1110
1110
Austria
Apotheke zum Heiligen Joseph
Schönbrunner Straße 194-196
Vienna
1120
Austria
Vienna
1120
Austria
Apotheke am Lainzer Platz
Lainzer Straße 139
Vienna
1130
Austria
Vienna
1130
Austria
Apotheke Maria vom Siege
Mariahilferstraße 154
Vienna
Austria
Austria
Vienna
Austria
Austria
Linden-Apotheke
Hernalser Hauptstraße 155
Vienna
1170
Austria
Vienna
1170
Austria
Humanitas-Apotheke
Jedleseer 66/94
Austria
1210
Austria
Austria
1210
Austria
Apotheke Neu Kagran
Erzherzog-Karl-Straße 84-88
Vienna
1220
Austria
Vienna
1220
Austria
Seestadt Apotheke
Maria-Tusch-Straße 12
Vienna
1220
Austria
Vienna
1220
Austria
Vital Apotheke
Gatterederstraße 9
Vienna
1230
Austria
Vienna
1230
Austria
Apotheke Schwenk zum heiligen Johann von Nepomuk
Schönbrunner Straße 259
Vienna
1120
Austria
Vienna
1120
Austria
Results and Publications
| Individual participant data (IPD) Intention to share | No |
|---|---|
| IPD sharing plan summary | Not expected to be made available |
| IPD sharing plan |
Editorial Notes
10/04/2026: Study's existence confirmed by the Ethics Committee of the Medical University of Vienna.