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Clinical Study: Analysis of Glycemic Control and Satisfaction With a Connected Smart Cap in Patients With Type 1 Diabetes Mellitus

Estudio clínico: Analisis de Control Glucemico y Satisfaccion Con un Cap Conectado en Pacientes Con dm Tipo 1

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06845891
Acronym
CAPSDM1
Enrollment
42
Registered
2025-02-25
Start date
2025-02-26
Completion date
2025-06-19
Last updated
2026-09-17

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

Conditions

Diabetes Management, Type 1 Diabetes Mellitus, Type 1 Diabetes Mellitus (T1DM)

Keywords

diabetes tecnhology, Type 1 diabetes, Smart cap, Time above range

Brief summary

This clinical study evaluates the impact of the Cap INSULCLOCK device on glycemic control, treatment adherence, and patient satisfaction in adults with type 1 diabetes mellitus (T1DM). Despite advances in pharmacology and technology, a significant proportion of individuals with T1DM fail to achieve recommended glycemic targets, partly due to the complexity of insulin therapy and suboptimal adherence. Cap INSULCLOCK is a device that attaches to insulin pens, automatically recording injections and integrating data on glucose levels, insulin administration, food intake, and physical activity, with real-time Bluetooth transmission. Its use may enhance adherence and optimize metabolic control. This study is a randomized, low-intervention clinical trial conducted at a single center, enrolling 42 patients, who will be randomized into two groups: one using the activated device and a control group using the device in a blinded mode. The primary objective is to assess differences in time above range (TAR \>180 mg/dL) over the last 14 days of continuous glucose monitoring (CGM). Secondary objectives include evaluating HbA1c levels, time in range (TIR), frequency of hypoglycemic episodes, and patient satisfaction. Data will be analyzed using advanced statistical methods, and the intervention is expected to improve adherence, reduce glycemic variability, and enhance quality of life in individuals with T1DM

Interventions

DEVICECONNECTED SMART CAP

The intervention in this study consists of attaching a smart cap to the insulin pen of individuals with type 1 diabetes who use flash glucose monitoring and experience a time above range (TAR \>180 mg/dL) for more than 25% of the time. This metric has been associated with diabetes-related complications, and the objective of this study is to determine whether this simple device could help reduce this underexplored parameter.

Sponsors

Fernando Sebastián Valles
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Masking description

The healthcare provider will introduce the study to each individual with type 1 diabetes who meets the inclusion and exclusion criteria during routine medical visits. Subsequently, the research team will contact each participant and randomly assign the device. Given that the total study duration for each patient is two months, the study will conclude for each individual at their follow-up visit with the healthcare provider. Blinding will not be feasible for either participants or investigators, as the control group will not have access to the real-time data provided by the cap, which is linked to the digital application of the glucose monitoring sensor.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Men and women aged 18 years or older. * Diagnosis of type 1 diabetes mellitus (T1DM). * Users of flash continuous glucose monitoring (FGM) sensors with \>70% of recorded data, including intake and insulin dose logs. * Adequate therapeutic adherence, with no missed appointments in the past year. * Time above range (TAR \>180 mg/dL) \>25%. * Ability to provide informed consent to participate in the study. * Access to technology for follow-up, including a smartphone with internet connectivity and compatibility with the Insulcloud app.

Exclusion criteria

* Current pregnancy. * Severe acute illness. *

Design outcomes

Primary

MeasureTime frameDescription
Time Above Range >180 mg/dL14 daysTime Above Range (TAR) refers to the percentage of time that an individual's glucose levels exceed 180 mg/dL during a given period, in this case, the last 14 days as recorded by a continuous or flash glucose monitoring system. This metric reflects hyperglycemic burden and has been associated with an increased risk of diabetes-related complications. Clinical guidelines generally recommend keeping TAR below 25% to optimize glycemic control and reduce long-term adverse outcomes.

Secondary

MeasureTime frameDescription
Time in range (70 - 180 mg/dL),14 daysTime in Range (TIR) refers to the percentage of time an individual's glucose levels remain within the target range of 70-180 mg/dL over the last 14 days, as recorded by a continuous or flash glucose monitoring system. TIR is a key glycemic metric reflecting overall glucose control, with higher percentages being associated with a lower risk of diabetes-related complications. Clinical guidelines recommend maintaining TIR above 70% as a primary therapeutic goal for individuals with diabetes.

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 18, 2026