Clinical trial Recruiting at 1 site Interventional Ages 18 to 65

Heart rate variability training to improve glucose metabolism in prediabetes

Official title: Effects of Autonomic Nervous System Modulation by Heart Rate Variability Biofeedback Training With Resonant Frequency Breathing on Glucose Metabolism in Individuals With Prediabetes

Run by Johannes Gutenberg University Mainz · NCT06739993 · Data updated 2026-11-12

This study is testing if breathing exercises that help regulate heart rate can improve blood sugar levels in people with prediabetes.

More Prediabetes trials

Quick facts

Study typeInterventional
Ages18 Years to 65 Years
SexAll
Enrollment60 (estimated)
SponsorJohannes Gutenberg University Mainz
Academic / other
Locations2 sites (Mainz, Mainz and 1 other locations)
StatusRecruiting
StartedMay 14, 2025
Main results expectedDecember 31, 2026
Study endsMarch 31, 2027
Registry record updatedAugust 5, 2026
Trial IDNCT06739993 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18 to 65 with a diagnosis of prediabetes based on specific glucose level criteria.

Probably not a fit

Patients with diabetes or significant chronic diseases, as well as those with certain medical conditions affecting heart rate, will 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 study investigates the effects of heart rate variability biofeedback training combined with resonance frequency breathing on glucose metabolism in individuals diagnosed with prediabetes. The intervention aims to enhance autonomic nervous system function, which is believed to play a crucial role in insulin sensitivity and secretion. Participants will undergo a screening process to confirm their prediabetes status and will be trained in specific breathing techniques to potentially improve their metabolic health. The study seeks to provide a novel therapeutic approach for managing prediabetes.

Why it matters

Potential benefit: If successful, this intervention could help improve glucose metabolism and reduce the risk of developing type 2 diabetes in individuals with prediabetes.

How similar studies have gone: While the specific combination of techniques used in this study may be novel, previous studies have shown promising results in improving metabolic health through autonomic nervous system modulation.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Presence of prediabetes Fasting glucose: 100-125 mg/dl (5.6-6.9 mmol/L) and/or HbA1c in %: 5.7-6.4 (39-47 mmol/mol Hb) and/or 2-hour value of the 75 g OGTT: 140-199 mg/dl (7.8-11.0 mmol/L)

  * This is checked using a 75 g OGTT in a screening visit.
* Age between 18 and 65 years
* BMI between 20 and 40 kg/m²

Exclusion Criteria:

* Diabetes mellitus
* Malignant diseases within the last 5 years before randomization
* History of gastrointestinal surgery
* Pancreatic diseases other than pancreatic lipomatosis
* Acute diseases or infections
* Regular intake of cardiac drugs that affect heart rate within the last 4 weeks before the first measurement (e.g. beta-receptor blockers, antiarrhythmics, etc.)
* Intake of centrally acting drugs
* Medical contraindications to a meaningful interpretation of the heart rate analysis (e.g. patients with pacemakers, atrial fibrillation or other arrhythmias)
* Chronic diseases (particularly metabolic diseases, heart diseases, blood diseases)
* Endocrinological disease other than substituted hypothyroidism
* Mental illnesses
* Intake of drugs that can affect blood sugar metabolism (e.g. steroids)

Where it's running

  • University Medical Center Mainz - Medical Psychology and Medical Sociology
    Mainz, Mainz, Germany
    Recruiting
  • University Medical Center of the Johannes-Gutenberg University, Department of Medical Psychology and Medical Sociology
    Mainz, Rhineland-Palatinate, Germany
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.