Diabetes Mellitus, Type 1 Clinical Trial
Official title:
Interventional Before/After Study of the Effect of the DBLG1 System With TERUMO MEDISAFE WITH Insulin Pump on Glucose Control of Patients With Type 1 Diabetes in France. The BETTER Trial
This study conducted in 90 adults living with type 1 diabetes is an interventional single-arm open-label before/after multicentric national study conducted as a clinical investigation according to the law EU 2017/745 art. 62. After a 14-day baseline period during which the patient will use a Dexcom G6 Continuous Glucose Monitoring (CGM) and his current therapy (multiple daily injection or open-loop pump), the patient will start a 42-day treatment period during which he will use the DBLG1 System, a closed loop system (including a DBLG1 handset, a TERUMO MEDISAFE WITH insulin pump, in addition to his Dexcom G6 CGM). An optional 6-week extension period with treatment will be proposed to patients agreeing to pursue the use of the DBLG1 system. The main objective is to evaluate the safety and efficacy of the DBLG1 System with a TERUMO MEDISAFE WITH insulin pump in closed-loop for 6 weeks in 90 adults with type 1 diabetes. Data related to their glycemia, complications, usability and quality of life will be collected. The study is completed when all patients have their "end of study" file completed in the electronic Case Report Form (eCRF).
This study conducted in 90 adults living with type 1 diabetes is an interventional single-arm open-label before/after multicentric national study conducted as a clinical investigation according to the law EU 2017/745 art. 62. The study periods are as follows: - 2 weeks of baseline period at home will be performed. During this baseline period, all patients will use their current therapy: MDI or competitor open-loop pump. In addition to their standard treatment, all patients will receive a Dexcom G6 coupled with the DBLG1 handset used exclusively to collect the data - Followed by a 6 weeks period of time (treatment period): Patients will be equipped with the DBLG1 System including the Medisafe With pump in closed loop mode condition - And finally a 6 weeks optional extension period will be performed (same conditions as for treatment period) A comparison will be made first between the 6 weeks of study closed loop and the baseline period and second between the extension closed loop and the baseline period of each patient (each patient will be his / her own control) to evaluate statistical subtlety as a secondary objective of the study. In addition, a comparison of treatment vs extension will also be performed. Visit 1: Inclusion and start of baseline phase for a duration of 2 weeks The investigator collects the dated and signed consents of patients who meet all inclusion and non-inclusion criteria. All subjects keep their current treatment (MDI or competitor pumps) and start their baseline phase. All subjects receive a DBLG1 handset coupled with Dexcom G6 to collect data. In each investigation center, subjects are trained by medical staff in accordance with the instructions described in IFU. Blood HbA1c test is performed in routine between one month before the V1 visit and V1 visit. If there is no routine HbA1c sampling during this period the investigator will prescribe a study specific HbA1c blood test. Visit 2 : V1 + 2 weeks ± 2 days : End of baseline and start of closed loop period The subject is equipped with the DBLG1 System including Medisafe with pump and trained. The site team will ensure and confirm the capacity of the subject to daily manage his DBLG1 System and realize the device setting initialization. The subject is asked to complete Quality of Life questionnaires (HFSII and DDS questionnaires) and DTSQs for satisfaction with his / her current treatment. The qualified site staff review patient's glycemia control via Yourloops during the first 6 days after the beginning of treatment. An optional visit on V2 + 3 days and / or V2 + 6 days should be organized by site staff in case of any doubts regarding the system's parameters or subject's training. These visits could be performed via a phone call. All supplementary visits and related events are collected via eCRF. Visit 3: V2 + 6 weeks ± 2 days : End of the closed loop - Start of extension (optional) The patient equipped with the DBLG1 System can continue with the 6 weeks extension phase. The site team may optimize the device setting if necessary. The subject is asked to complete Quality of Life questionnaires (HFSII and DDS questionnaires) and DTSQs for satisfaction with the DBLG1 System If they refuse to participate in the extension, the patients leave the study and the material is returned to the investigation site. Visit 4: V3 + 6 weeks ± 2 days: End of study visit The subject is asked to complete Quality of Life questionnaires (HFSII and DDS questionnaires) and DTSQ for satisfaction with the closed loop DBLG1/Medisafe with Blood HbA1c test is performed The material is returned to the investigation site Contact by phone calls or additional visits are allowed during the study. They might be useful to discuss treatments, system parameters and adverse events The aim of this study is to obtain CE mark for DBLG1 System based on evaluation of safety and efficacy. The main objective is to evaluate the safety and efficacy of the DBLG1 System in closed-loop for 6 weeks. Analysis will be made between the 6 weeks treatment with closed loop vs the 2 weeks baseline The secondary objectives of this study are to: assess the efficacy of DBLG1 System assess the global safety of DBLG1 System assess the compliance with closed loop during treatment / extension phase assess the quality of life and satisfaction and adherence of subjects to the system ;
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