Low-carbohydrate diet for normalizing blood sugar in type 2 diabetes
Official title: Normalized Glucose Levels in Type 2 Diabetes With Carbohydrate or Caloric Restriction: a Randomized Controlled Trial (CarborCal)
Run by Region Stockholm · NCT05801614 · Data updated 2026-11-12
This study tests if a low-carbohydrate diet can help people with type 2 diabetes lower their blood sugar levels better than traditional calorie counting.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 24 Years to 70 Years |
| Sex | All |
| Enrollment | 286 (estimated) |
| Sponsor | Region Stockholm Government |
| Locations | 1 site (Stockholm) |
| Status | Recruiting |
| Started | February 28, 2022 |
| Main results expected | February 28, 2027 |
| Study ends | February 28, 2027 |
| Registry record updated | January 2, 2024 |
| Trial ID | NCT05801614 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are individuals diagnosed with type 2 diabetes for less than 6 years, with a BMI of 27 kg/m2 or higher.
✕Probably not a fit
Patients with severe insulin deficiency or those with HbA1c levels of 12% or more may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized controlled trial aims to evaluate the effectiveness of a low-carbohydrate diet in normalizing blood glucose levels in patients with a short duration of type 2 diabetes. The study compares this approach to traditional caloric restriction, which can be challenging to maintain. Participants will be monitored over a period of 15 months to assess changes in HbA1c levels, which are crucial for preventing diabetes-related complications. The trial seeks to provide a less restrictive dietary alternative that can be integrated into a healthy lifestyle.
Why it matters
Potential benefit: If successful, this approach could offer a sustainable dietary option for patients to manage their blood glucose levels effectively.
How similar studies have gone: Previous studies have shown that caloric restriction can normalize blood glucose levels in many patients, suggesting potential success for this less restrictive dietary approach.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * HbA1c \> 48 mmol/mol (with or without medical treatment); * less than 6 years since the diagnosis of T2D * BMI ≥ 27 kg/m2 (≥ 25 kg/m2 for Asians). Exclusion Criteria: * Insulin deficiency. * HbA1c concentration of 12% or more (≥108 mmol/mol), * treatment with sulphonyl urea or sodium-glucose-cotrasporter2-inhibitor (SGL2-i), * myocardial infarction within the previous 6 months, * severe or unstable heart failure * other severe diseases including cancer, psychiatric/eating disorders, severe depression - substance abuse, * conditions that may affect the ability of patients to participate in the study
Where it's running
-
Center for diabetes, Academic Specialist center
Stockholm, Sweden Recruiting
Study contacts
- Principal investigator: Neda Rajamand Ekberg, MD, PhD — Region Stockholm
- Study coordinator: Neda Rajamand Ekberg, M.D. PhD.
- Email: neda.ekberg@ki.se
- Phone: +468-123 671 50
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Long alimentary-limb versus long biliary-limb Roux-en-Y gastric bypass for diabetes remission
This tests whether, for people with severe obesity and type 2 diabetes, two variants of Roux-en-Y gastric bypass with a short common limb—one with a long alimentary limb and one with a long biliary limb—lead to higher rates of diabetes remission.
-
Group CBT vs. Activity Group for Adults with ADHD
This trial tests whether group cognitive behavioral therapy helps adults with ADHD more than a structured activity group.
-
AI support in emergency medicine helps doctors make differential diagnoses
This study tests whether a generative AI tool can help emergency doctors arrive at more accurate differential diagnoses for adult patients at Karolinska University Hospital.
-
Predicting prostate cancer response to neoadjuvant darolutamide with a gene biomarker
This study tests whether a gene-based PCAI ImmunoScore can predict which high-risk localized or locally advanced prostate cancer patients will have minimal residual disease after 90–120 days of darolutamide before surgery.
-
Pulse palpation vs arterial blood pressure in circulatory shock
This study tests how well feeling for a pulse at typical sites matches the actual arterial blood pressure in adults with circulatory shock or risk of failure.
-
Brief Cognitive Behavioral Therapy for Inpatient Psychiatry
This project tests whether a brief CBT program added to usual inpatient care helps adults with depression or anxiety during their hospital stay.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.