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QBSafe: a Randomized Trial of a Novel Intervention to Improve Care for People Living With Type 2 Diabetes.

QBSafe: a Randomized Trial of a Novel Intervention to Improve Care for People Living With Type 2 Diabetes.

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05553912
Enrollment
154
Registered
2022-09-26
Start date
2022-11-02
Completion date
2025-02-24
Last updated
2026-08-06

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

Conditions

Diabetes, Type2Diabetes

Keywords

A1c, HbA1c

Brief summary

Glycemic control is often the main indicator of successful diabetes care, but a singular focus on glycemic control may lead to patients' overall health and wellbeing being overlooked or undervalued. The investigators have previously developed an intervention comprised of (a) a set of conversation cards designed to enable patients to identify aspects of life with diabetes important to them and to share them with their clinician to obtain their input; and (b) materials that help clinicians respond to patient concerns. The investigators will now conduct a randomized clinical trial to test the feasibility of the research procedures and efficacy of the intervention with respect to patient reported outcome measures.

Detailed description

The goal of this study is to assess the feasibility and efficacy of usual care with the QBSafe intervention compared to usual care alone within a cluster randomized clinical trial among patients with type 2 diabetes.

Interventions

BEHAVIORALQBSafe

an intervention comprised of (a) a set of conversation cards (QBSafe ASK) designed to enable patients to identify aspects of life with diabetes important to them and to share them with their clinician to obtain their input; and (b) materials that help clinicians respond to patient concerns.

Sponsors

Yale University
Lead SponsorOTHER
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Intervention model description

This is a cluster randomized clinical trial of usual care with a behavioral intervention (use of conversation cards during routine clinical encounters) compared with usual care alone. The study will randomize 10-15 clinicians and 72 of their patients with type 2 diabetes to each arm. Data collected includes medical record data, patient and clinician surveys, and audio-visual recordings of clinical encounters.

Eligibility

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

Inclusion criteria

Clinicians * any physicians, residents, nurse practitioners, and physician assistants who participate in the care of patients with type 2 diabetes (DM2) management (DM2) and prescribe medications for them Participants * diagnosed with DM2 * able to sign informed consent * fluent in either English or Spanish * HbA1c \>8%

Exclusion criteria

* Participants for whom an HbA1c target \>8% is clinically reasonable (e.g., those with limited life expectancy) and/or aligned with goals/preferences

Design outcomes

Primary

MeasureTime frameDescription
Illness Intrusiveness Measured by the Illness Intrusiveness Ratings Scale (IIRS) at Month 6Month 6The change in illness intrusiveness measured by the validated Illness Intrusiveness Ratings Scale (IIRS). IIRS is comprised of 13 items that ask participants to rate the degree to which their "illness and/or its treatment" interfere with life domains central to quality of life. Overall score is calculated by summing the 13 items creating a value between 13 to 91, where higher scores indicate increased illness intrusiveness. Analysis will assess the 6 months response as the outcome adjusting for arm and the initial score. Subscales are scored 1-7 with higher scores indicating more disruption or intrusiveness.
HbA1c at Month 6Month 6HbA1c value at month 6. Analysis will model the 6 month HbA1c assessment adjusting for arm and the initial score.

Secondary

MeasureTime frameDescription
Diabetes Distress Will be Measured Using the Diabetes Distress Scale (DDS-17) at Month 6Month 6The DDS is a validated 17-item self-report instrument where each item is rated on a 6-point Likert scale from (0) "not a problem" to (6) "a serious problem." The scale yields a total DDS score, plus scores for 4 subscales: emotional burden, regimen distress, physician distress, and interpersonal distress. Total and subscale scores are calculated using mean item scores, which are then categorized as little or no distress (0- 2.0), moderate distress (greater than or equal to 2.0 and less than or equal to 2.9) and high distress (3.0-6.0). Moderate and high distress are considered 'clinically significant.'
Treatment Burden Will be Assessed Using the Treatment Burden Questionnaire (TBQ) at Month 6Month 6The TBQ is a self-reported questionnaire assessing the burden of treatment without restricting its scope to a single condition or treatment context. It is composed of 15 items rated on a Likert scale ranging from 0 (no impact) to 10 (considerable impact) related to the burden associated with taking medicine, self-monitoring, laboratory tests, physician visits, need for organization, administrative tasks, following advice on diet and physical activity, and social impact of the treatment. Item scores can be summed into a global score, ranging from 0 to 150. Higher scores reflect higher treatment burden.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORKasia Lipska, MD MHS

Yale University

Baseline characteristics

Characteristic
Age, Continuous56.2 years
STANDARD_DEVIATION 11.8
BMI categories
18.5 to 24.9 (Healthy weight)
8 Participants
BMI categories
25 to 29.9 (Overweight)
45 Participants
BMI categories
30.0 to 39.9 (Obese)
36 Participants
BMI categories
40.0+ (Class 3 Obseity)
4 Participants
Body Mass Index (BMI)30.9 kg/m^2
STANDARD_DEVIATION 5.63
Clinicians' Credentials
Nurse Practitioner
3 Participants
Clinicians' Credentials
Physician (MD, DO)
8 Participants
Comorbidities
Cardiovascular disease
12 Participants
Comorbidities
Cerebrovascular disease
8 Participants
Comorbidities
Hyperlipidemia
55 Participants
Comorbidities
Hypothyroidism
5 Participants
Confidence in Filling Out Medical Forms
Missing
0 Participants
Confidence in Filling Out Medical Forms
Not at all/A little bit confident
15 Participants
Confidence in Filling Out Medical Forms
Quite a bit/Extremely confident
111 Participants
Confidence in Filling Out Medical Forms
Somewhat confident
7 Participants
DDS subscale: Emotional Burden2.7 score on a scale
STANDARD_DEVIATION 1.5
DDS subscale: Interpersonal Distress2.0 score on a scale
STANDARD_DEVIATION 1.44
DDS subscale: Physician-related Distress1.6 score on a scale
STANDARD_DEVIATION 0.75
DDS subscale: Regimen-related Distress3.0 score on a scale
STANDARD_DEVIATION 1.54
Diabetes Complications
Nephropathy
13 Participants
Diabetes Complications
Neuropathy
19 Participants
Diabetes Complications
Retinopathy
18 Participants
Diabetes Distress Scale (DDS)- Overall2.2 score on a scale
STANDARD_DEVIATION 1.02
Diabetes Medications
DPP-4 inhibitors
20 Participants
Diabetes Medications
GLP-1
49 Participants
Diabetes Medications
Insulin
43 Participants
Diabetes Medications
Meglitinides
0 Participants
Diabetes Medications
Metformin
59 Participants
Diabetes Medications
SGLT-2 Inhibitors
36 Participants
Diabetes Medications
Sulfonylureas
35 Participants
Diabetes Medications
Thiazolidinediones (TZDs)
3 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
51 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
23 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Federal Poverty Level
0-150%
61 Participants
Federal Poverty Level
>150%
5 Participants
Federal Poverty Level
Missing
8 Participants
HbA1c9.9 percent
STANDARD_DEVIATION 1.7
HbA1c categories
10.0+
29 Participants
HbA1c categories
8.0 to <9.0
28 Participants
HbA1c categories
9.0 to < 10.0
16 Participants
IIRS subscale: Instrumental3.1 score on a scale
STANDARD_DEVIATION 1.56
IIRS subscale: Intimacy2.7 score on a scale
STANDARD_DEVIATION 2.15
IIRS subscale: Relationship and personal2.2 score on a scale
STANDARD_DEVIATION 1.58
Illness Intrusiveness Ratings Score (IIRS)- Overall36.6 score on a scale
STANDARD_DEVIATION 17.52
Language
Need Interpreter Support
6 Participants
Language
Spanish Speaking
3 Participants
Mean Count Diabetes Medications2.8 medications
STANDARD_DEVIATION 1
Medical Insurance
Commercial
11 Participants
Medical Insurance
Medicaid
26 Participants
Medical Insurance
Medicare
22 Participants
Medical Insurance
Self-Pay/Uninsured
20 Participants
Percent of Days Covered69 percent days
STANDARD_DEVIATION 29.8
Primary Language
English
34 Participants
Primary Language
Spanish
40 Participants
Quality of life (QOL)6.2 score on a scale
STANDARD_DEVIATION 2.8
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
13 Participants
Race (NIH/OMB)
More than one race
1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
35 Participants
Race (NIH/OMB)
White
19 Participants
Region of Enrollment
United States
154 participants
Sex: Female, Male
Female
43 Participants
Sex: Female, Male
Male
31 Participants
Treatment Burden Questionnaire45.6 score on a scale
STANDARD_DEVIATION 38.26
Was an interpreter present during study visit?
No
53 Participants
Was an interpreter present during study visit?
Yes, in person
2 Participants
Was an interpreter present during study visit?
Yes, on the phone
14 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
1 / 692 / 74
other
Total, other adverse events
0 / 690 / 74
serious
Total, serious adverse events
0 / 690 / 74

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 7, 2026