Adapting Single Sessions Interventions for Type 1 Diabetes

BEHAVIORAL

T1D-specific depression SSI

The T1D-specific depression SSI will include 1) psychoeducation about depression, including how behavior shapes feelings and thoughts, 2) a values assessment, where youth will identify key areas (i.e., family relationships, friendships, school, or hobbies) from which they draw (or once drew) enjoyment and meaning, and 3) the creation of an activity action plan, wherein youth identify (from pre-generated lists) and personalize (in guided exercises) three activities to target for change.

BEHAVIORAL

T1D Educational

T1D Educational Material

Hemoglobin A1c (HbA1c)

Time frame: 0, 3-months, and 6-months

Proxy measure of glycemic level. HbA1c is the average blood glucose level over 3-4 months. We will use fingerstick blood samples and a valid mail-in dried blood spot kit to measure participant HbA1c levels at a central laboratory

Patient Health Questionnaire for Adolescents (PHQ-9)

Time frame: 0, 3-months, and 6-months

The PHQ-9 is a well-validated and reliable measure that assesses the occurrence of nine possible depressive symptoms over the previous two weeks. Higher scores indicate greater depressive symptoms. A cut-off score of \>5 will be used to characterize elevated depressive symptoms

Positive and Negative Affect Schedule (PANAS)

Time frame: 7 days before and 7 days after SSI

The PANAS is a 20-item measure that assesses different feelings and emotions. Items are grouped into the two subscales with 10 items each: positive affect and negative affect, with higher scores on the Positive Affect subscale indicating greater intensity of positive emotions, and higher scores on the Negative Affect subscale indicating greater intensity of negative emotions.

Mood and Feelings Questionnaire (MFQ)

Time frame: 7 days before and 7 days after SSI

The MFQ is a 13-item measure that assesses depressed mood in youth. Higher scores indicate higher depressed mood.

Feasibility of T1D-specific Depression SSI

Time frame: Baseline and 3-months

We will determine feasibility by calculating study enrollment rates for the Aim 2 pilot trial. We will also assess the feasibility of the type 1 diabetes (T1D)-specific depression single-session intervention (SSI) in the qualitative interviews

Acceptability of Healthcare Interventions Questionnaire

Time frame: immediately after SSI completion

The Acceptability of Healthcare Interventions Questionnaire is an 8-item measure that assesses the acceptability of healthcare interventions. Respondents rate each question on a scale of 1 (strongly disagree) to 5 (strongly agree), with higher scores indicating greater intervention acceptability.

What is a clinical trial?

A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.

Is it safe to participate?

Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.

Will I be compensated?

Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.

Will I receive a placebo instead of treatment?

When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.

Can I leave a trial if I change my mind?

Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.

How long does a clinical trial last?

Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.