This study will investigate whether an online intervention can be helpful in reducing diabetes distress in people with type 1 diabetes and elevated diabetes distress, compared to individual counselling sessions (online, phone-based or face-to-face, depending on the preference of the person with type 1 diabetes). Half of the participants will receive the online intervention, while the other half will receive individual counseling sessions with a psychologist.

Objectives: The main aim of this study is to investigate if the online intervention is feasible and liked by people with type 1 diabetes and diabetes distress, in comparison with individual counselling sessions.

Hypotheses: The investigators predict that both interventions will be feasible to use, shown by how many people join, stay engaged, and complete the interventions. The investigators also think that people will find both interventions acceptable, as shown by the positive feedback given in interviews after they finish.

Individuals with diabetes are primarily responsible for managing their disease. Therefore, their ability to effectively self-treat their diabetes is critical for their prognosis. These significant treatment responsibilities place considerable demands on individual patients. These demands can lead to high levels of diabetes distress. Diabetes distress encompasses the emotional distress arising from the constant self-care burden that is required to self-manage diabetes, but also feelings of insufficient support and understanding from others, and challenges in communication with healthcare professionals. Diabetes distress is prevalent among individuals with diabetes. International research indicates that approximately 20-25% of individuals with diabetes experience high levels of diabetes distress. Studies exploring the impact of diabetes distress on diabetes management reveal that significant diabetes distress not only diminishes overall well-being but also correlates with suboptimal self-management of diabetes. This includes insufficient physical activity, unhealthy dietary choices, reduced medication adherence, infrequent blood glucose monitoring, and elevated HbA1c levels.

At Steno Diabetes Center Odense (SDCO), there are provisions for individual psychological intervention aimed at patients facing psychological challenges associated with their diabetes. However, due to resource constraints, priority is given to those patients experiencing the most severe impact.

As part of a new initiative at SDCO, Patient-Reported Outcome (PRO) data has been incorporated alongside diabetes same-day micro- and macrovascular complication screening, which includes an assessment of mental well-being (i.e. diabetes distress). These assessments will contribute to higher recognition rates of elevated diabetes distress, thereby exacerbating the strain on already limited resources available for individual psychological intervention. Moreover, not all patients may have the requisite time, necessity, or opportunity to partake in such individual intervention.

In order to expand existing psychological services at SDCO in an affordable way, an online psychological intervention needs to be developed. The objective of the online psychological intervention is to cater to a larger group of people with type 1 diabetes, who can autonomously engage with evidence-based components of the intervention, thereby averting the progression of patients' diabetes distress towards adverse or pathological conditions, such as anxiety or depression. Studies indicate that therapist-supported online therapy yields comparable efficacy to traditional face-to-face therapy. Additionally, online therapy offers the benefit of flexibility, allowing patients to engage with the intervention at their convenience, thereby obviating the need for patients to take time away from their professional commitments to attend sessions with a psychologist.

Aims:

The primary aim of this study is to evaluate the feasibility and acceptability of an online intervention with written support for patients with type 1-diabetes and elevated diabetes distress, comparing this with an individual intervention by a psychologist (online, phone-based or face-to-face, depending on the preference of the person with type 1 diabetes). Following the intervention, qualitative data will be collected through interviews conducted with both patients and clinical staff to assess this aim. Also metadata from the platform of the online intervention will be collected to evaluate this aim.

A secondary aim is to explore the efficacy of the interventions to improve different domains of diabetes-stress. This secondary aim will be evaluated through survey data.

Further aims are to explore whether both interventions impact diabetes-related quality of life, acceptance of diabetes, patient engagement in healthcare, negative effects of the intervention, useability of the intervention and glucometrics (e.g. estimated HbA1c, time in range (TIR), time above range (TAR), time below range (TBR)).

Hypotheses:

Primary aim hypotheses: It is hypothesized that both interventions will show high feasibility and acceptability, demonstrated by acceptable recruitment strategies, high rates of retention and high completion of modules/sessions. It is expected though, that the dropout rates will be higher in the online intervention group. It is also hypothesized that both interventions are acceptable, as demonstrated by satisfactory feedback obtained through post-intervention interviews.

Secondary aim hypotheses. It is hypothesized that in both interventions there will be a significant reduction in participants' diabetes distress from pre-intervention to post-intervention, and from pre-intervention to 3-months follow-up.

Further, it is also hypothesized that the interventions will yield positive changes in diabetes-related quality of life, acceptance of diabetes, and patient engagement in healthcare. It is further hypothesized that the interventions has no negative effect on the patients, and that the patients find the interventions useful. Glucometrics are included as a secondary outcome but as the interventions does not target this, the investigators hypothesize no changes in these measures will be found.

Recruitment and procedure:

Participants for the study will be recruited at Steno Diabetes Center Odense (SDCO) in Denmark. Patients with a total score on the questionnaire Problem Areas in Diabetes (PAID5) of ≥ 8 will receive information about the study. If interested in participating, they can contact the study leader to receive more information about the study and schedule a screening appointment with a study psychologist.

During the screening appointment, the patient will have further opportunity to learn more about the study and ask questions. If they wish to participate, they will receive a consent form to sign. Subsequently, the patient will receive a questionnaire including an extended measure of diabetes distress i.e. The Diabetes Distress Scale for type 1-diabetes (DDS-type1). In the screening appointment, the inclusion and exclusion criteria will be evaluated. If the psychologist deems the patient suitable for participation, the patient will be randomized to either receive an online psychological intervention or an individual psychological intervention with 20 patients in each arm.

Following the conclusion of the intervention and during the 3-month follow-up period, participants will be administered a questionnaire.

Subsequent to the feasibility study, semi-structured interviews will be conducted with approx. 12 patients, 2-3 psychologists, and possibly further clinical staff. These interviews will explore aspects related to screening procedures, recruitment strategies, and the acceptance of the online psychological intervention.

The online intervention will subsequently be evaluated using a mini Model for Assessment of Telemedicine (MAST), where the following domains will be assessed:

• Health problems and technology characteristics
• Patient safety
• Clinical effectiveness
• Patient assessment
• Economic aspects
• Organizational aspects
• Sociocultural, ethical, and legal aspects.

Inclusion Criteria:

• A total score or a score on one of the subscales of the Diabetes Distress Scale for type 1 diabetes which is 2 or above.
• Diagnosed with type 1-diabetes ≥ 12 months ago.
• Age ≥ 30 years.
• Receiving treatment at SDCO.
• Proficiency in Danish and basic IT skills.

Exclusion Criteria:

• Psychiatric diagnosis that may compromise participation in the intervention e.g. psychosis, schizophrenia, substance or alcohol abuse.
• Cognitive impairments that may compromise participation in the intervention e.g. dementia, Alzheimer's, brain injury.
• Complex issues best suited for individual treatment as assessed by the clinical psychologist.