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Active, not recruitingNCT05477368Updated Aug 1, 2023

Examining the Feasibility of Prolonged Ketone Supplement Drink Consumption in Adults With Type 2 Diabetes

An interventional study of D-β-hydroxybutyric acid with R-1,3-butanediol and Inert placebo in Diabetes, Hyperglycemia and Ketosis, sponsored by University of British Columbia. Active, not recruiting at 1 site in Canada. Open to participants aged 30 Years to 69 Years. Per ClinicalTrials.gov, last updated 2023-08-01.

Sponsored by University of British Columbia · Not applicable, Interventional, and Other

From the registry’s dates

  • Primary completion was expected by Aug 2023, 3 years 2 months ago, but the record still lists the study as active, not recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
30 Years to 69 Years
Sex
All
01

Study summary

Ketones are a source of energy and signaling molecule that are produced by the body when not consuming any food or consistently eating a low-carbohydrate "keto" diet. Blood ketones can be used as a source of energy by the body, but they may also act as signals that impact how different cells in the body function.

Recently, ketone supplements have been developed that can be consumed as a drink. These supplements can raise blood ketones without having to fast or eat a "keto" diet. Previous studies have shown that these supplement drinks can lower blood sugar without having to make any other dietary changes. Drinking these ketone supplements may therefore be an effective strategy to improve blood sugar control and influence how cells function.

To find out if it is feasible for people with type 2 diabetes to drink these ketones supplements regularly over 90 days, we will compare between two groups in this study: one group that will be asked to drink ketone supplements, and one group that will be asked to drink a placebo supplement.

02

Conditions studied

  • Diabetes
  • Hyperglycemia
  • Ketosis
03

In context

Diabetes Mellitus

10,925 studies on the registry are indexed under Diabetes Mellitus; 1,319 are open to participants now.

This study's enrollment of 20 is below the median of 80 across 8,367 interventional studies indexed under Diabetes Mellitus.

Browse Diabetes Mellitus studies →

Lead sponsor

University of British Columbia is the lead sponsor of 1,309 studies on the registry; 253 are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 1 (17%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
30 Years to 69 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • diagnosed with type 2 diabetes by a physician at least 1 year prior
  • stable use of glucose-lowering medications for at least three months
  • must be able to read and understand English in order to complete the study questionnaires

Exclusion criteria

Exclusion Criteria:

  • competitively trained endurance athlete
  • actively attempting to gain or lose weight
  • having a history of mental illness or existing neurological disease
  • having a history of cardiovascular events in the last two years, hypoglycemia, irritable bowel syndrome, or inflammatory bowel disease
  • are currently taking SGLT2 inhibitors or insulin
  • are using more than 2 classes of glucose-lowering medication
  • currently following a ketogenic diet or regularly taking ketone supplements
  • unable to commit to a 90-day trial
  • being unable to follow remote guidance by internet or smartphone
  • currently taking natural or over-the-counter supplements specifically designed to lower blood glucose (e.g., berberine, bitter melon)
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Exogenous Ketone Supplement

    Participants will be instructed to consume a total of 711 mL of the exogenous ketone supplement drink (for a total of 30 g of beta-hydroxybutyrate) per day (3 doses at 237 mL containing 10 g of beta-hydroxybutyrate each) for a period of 90 days.

    Dietary Supplement: D-β-hydroxybutyric acid with R-1,3-butanediol

  • Placebo comparator
    Inert placebo

    Participants will be instructed to consume an equivalent volume (711 mL) of taste- and volume-matched placebo per day (3 doses at 237 mL) for 90 days.

    Other: Inert placebo

Interventions

  • Dietary supplementD-β-hydroxybutyric acid with R-1,3-butanediol

    Pre-intervention (baseline) and post-intervention measurements will be obtained before and after the 90-day period respectively.

  • OtherInert placebo

    Pre-intervention (baseline) and post-intervention measurements will be obtained before and after the 90-day period respectively.

06

What researchers measure

Primary outcomes

  1. To determine the feasibility of conducting a randomized controlled trial (RCT) on the effects of consumption of a ketone supplement in adults with type 2 diabetes in free-living environment for 90 days: Recruitment rate of participants into the trial

    A recruitment rate of at least 4 participants per month (which will ensure the study is fully enrolled within a 1-year timeline) will be acceptable.

    Time frame: Start of enrolment to completion of enrolment

  2. To determine the feasibility of conducting such an RCT: Compliance as measured by the self-reported volume of ketone supplement drink consumed

    ≥ 67% of the drinks provided being consumed by participants as determined via self-report (i.e., an average of two out of three drinks per day being consumed) will be acceptable.

    Time frame: Across the 90-day intervention period (days 0 through 90)

  3. To determine the feasibility of conducting such an RCT: Retention as measured by the number of participants that complete the study

    ≤ 30% of recruited participants dropping out of the study will be acceptable.

    Time frame: Across the 90-day intervention period (days 0 through 90)

Secondary outcomes

  1. Measures of glycemic control (HbA1c)

    Glycemic control will be measured by assessing HbA1c in a clinical laboratory.

    Time frame: Day 0 (pre-intervention/baseline) and day 90 (post-intervention/follow-up)

  2. Measures of glycemic control (postprandial glucose area under the curve)

    Glycemic control will be measured by continuous glucose monitoring using the FreeStyle Libre 2 (Abbott) and quantified by assessing 2-hour postprandial hyperglycemia.

    Time frame: Days -5 through 9 (5 days of baseline and first 9 days of intervention period) and days 77 through 90 (last 2 weeks)

  3. Measures of glycemic control (average daily glucose)

    Glycemic control will be measured by continuous glucose monitoring using the FreeStyle Libre 2 (Abbott) and quantified by assessing the average daily glucose.

    Time frame: Days -5 through 9 (5 days of baseline and first 9 days of intervention period) and days 77 through 90 (last 2 weeks)

  4. Measures of glycemic control (glucose variability)

    Glycemic control will be measured by continuous glucose monitoring using the FreeStyle Libre 2 (Abbott) and quantified by assessing glucose variability.

    Time frame: Days -5 through 9 (5 days of baseline and first 9 days of intervention period) and days 77 through 90 (last 2 weeks)

  5. Supplement acceptability

    Supplement acceptability will be assessed via questionnaire.

    Time frame: Days 1, 45, and 90

  6. Gastrointestinal distress

    Gastrointestinal distress will be assessed via questionnaire.

    Time frame: Days 1, 45, and 90

  7. Self-reported body weight

    Self-reported body weight will be assessed by questionnaire.

    Time frame: Day 0 (pre-intervention/baseline) and day 90 (post-intervention/follow-up)

  8. Self-reported waist circumference

    Self-reported waist circumference will be assessed by questionnaire (using study-provided measurement tape).

    Time frame: Day 0 (pre-intervention/baseline) and day 90 (post-intervention/follow-up)

  9. Self-reported energy consumption

    Self-reported energy consumption will be assessed via 24-hour dietary recalls.

    Time frame: Days 0 (pre-intervention/baseline), 45, and 90

  10. Levels of perceived hunger

    Levels of perceived hunger will be assessed via questionnaire.

    Time frame: Days 0 (pre-intervention/baseline), 45, and 90

  11. High-sensitivity c-reactive protein

    High-sensitivity c-reactive protein will be measured in a clinical laboratory.

    Time frame: Day 0 (pre-intervention/baseline) and day 90 (post-intervention/follow-up)

  12. Hematology panel

    Hematology panel will be measured in a clinical laboratory.

    Time frame: Day 0 (pre-intervention/baseline) and day 90 (post-intervention/follow-up)

  13. Liver enzymes (ALT, AST)

    Liver enzymes (ALT, AST) will be measured in a clinical laboratory.

    Time frame: Day 0 (pre-intervention/baseline) and day 90 (post-intervention/follow-up)

  14. Lipid panel (triglycerides, total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, non-high density lipoprotein cholesterol, cholesterol/high-density lipoprotein cholesterol ratio)

    Lipid panel will be measured in a clinical laboratory.

    Time frame: Day 0 (pre-intervention/baseline) and day 90 (post-intervention/follow-up)

  15. Levels of physical activity

    Levels of physical activity will be assessed via questionnaire.

    Time frame: Days 0 (pre-intervention/baseline), 45, and 90

  16. Theory of planned behaviour

    Theory of planned behaviour will be assessed via questionnaire.

    Time frame: Days 0 (pre-intervention/baseline) and 45

  17. Sleep quality

    Sleep quality will be assessed via questionnaire.

    Time frame: Days 0 (pre-intervention/baseline), 45, and 90

  18. Cravings

    Cravings will be assessed via questionnaire.

    Time frame: Days 0 (pre-intervention/baseline), 45, and 90

  19. Self-rated health

    Self-rated health and its impacts on daily life will be assessed via questionnaire.

    Time frame: Days 0 (pre-intervention/baseline), 45, and 90

  20. Self-reported blood pressure (systolic and diastolic)

    Self-reported blood pressure (systolic and diastolic) will be assessed via questionnaire (via study-provided blood pressure monitors).

    Time frame: Days 0 (pre-intervention/baseline), 45, and 90

Other outcomes

  1. Intervention acceptability

    To evaluate the acceptability of the intervention and data collection procedures to participants, assessing the feasibility of implementing the intervention.

    Time frame: Across the 90-day intervention period (days 0 through 90)

  2. Viability of methods

    To pilot methods for collecting outcome measures and ensure that our plans for recruitment, randomization, treatment, and follow-up are viable

    Time frame: Across the 90-day intervention period (days 0 through 90)

07

Study locations

1 site
  • University of British Columbia
    Kelowna, British Columbia, Canada
08

References and documents

Individual participant data

Plan to share: Yes — The investigators will share individual patient data (de-identified) with researchers upon reasonable request.

Supporting information: Study protocol, Sap, Icf, Csr, Analytic code

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 1, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05477368
Lead sponsor
University of British Columbia
Responsible party
Jonathan Little (Professor, University of British Columbia) — Principal investigator
First posted
Jul 28, 2022
Start date
Sep 28, 2022
Primary completion
Aug 2023 (estimated)
Completion
Aug 2023 (estimated)
Last update
Aug 1, 2023

Study contacts

Jonathan Little, PhD
principal investigator · University of British Columbia

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Jul 2023. You cannot join it, but the record below documents what was studied.

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