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NCT Number: NCT06047262

Dapansutrile in Diabetes and Diabetes-Related Complications - Dapan-Dia

The aim of the study is to determine whether NLRP3 inhibition with dapansutrile represents a new pharmacological option for diabetes management with potential as an anti-inflammatory agent to also address micro- and macro-vascular risk and complications from diabetes.

Recruiting

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Key information

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

CHU de Liege, Liège, Belgium

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About this study

To date, no other oral NLRP3 inhibitor has sufficiently advanced in development to be tested in a chronic low-grade inflammatory disease such as type 2 diabetes mellitus over a period of 3 to 4 months as proposed in this trial. Based on the publicly available information, dapansutrile is the most advanced oral NLRP3 inhibitor in development. The rationale is built upon dapansutrile's clinical and extensive preclinical and safety findings, and from data in chronic animal toxicology studies to date, which together enable and support its investigation in select chronic low-grade inflammatory diseases. Therefore, the investigators have selected type 2 diabetes mellitus and its complications, including risk for cardiovascular disease, as a disease with clinical features of low-grade inflammation to further investigate the therapeutic potential of NLRP3 inhibition with dapansutrile.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Diagnosis of type 2, Diabetes mellitus as defined by the criteria of the American Diabetes Association (ADA) Expert Committee on the Diagnosis and Classification of Diabetes Mellitus (see Appendix 1) and recognized by the World Health Organization (WHO, 2019), for at least 3 months prior to the Baseline Visit/Day 1
  • HbA1c value of ≥ 7.7% to ≤ 11.0% at the Screening Visit.
  • High-sensitivity C-reactive protein (hsCRP) ≥ 1.5 mg/L at the Screening Visit.
  • Body mass index (BMI) ≥25 to ≤ 40 kg/m2 at the Screening Visit
  • Acceptable overall medical condition to safely participate in the study and complete all study procedures (particularly with regard to cardiovascular, renal, and hepatic conditions), in the opinion of the Investigator

Exclusion criteria

  • Diagnosis of type 1 diabetes mellitus
  • HbA1c value of ≤ 7.5% or ≥ 10.5% at the Baseline Visit/Day 1, as determined at point of care (local laboratory)
  • Use of thiazolidinediones (glitazones), pramlintide, or short-acting insulin/insulin analogues (as bolus or premixed insulin) within 12 weeks prior to the Screening Visit
  • Less than 80% compliance in taking investigational medicinal product by pill count during the Run-In Period, as assessed at the Baseline Visit/Day 1
  • Significant weight loss (> 5 kg) in the 12 weeks prior to the Screening Visit
  • Systolic blood pressure (BP) ≥ 160 mmHg, diastolic BP ≥ 100 mmHg, or resting heart rate (HR) ≥ 100 beats/minute at the Screening Visit
  • Previous myocardial infarction, any cardiac surgery

Treatment and study plan

Dapansutrile

Drug

Patients receive investigational product.

Other names: 3-methanesulfonyl-propionitrile, OLT1177

Placebo

Drug

Patients receive placebo.

Primary outcomes

  1. Change in HbA1c in blood of patients for dapansutrile compared to placebo

    Time frame: two time assessment at baseline and week 26

    Comparison of change in HbA1c for dapansutrile and placebo

Secondary outcomes

  1. Change in HbA1c in blood of patients for dapansutrile compared to placebo

    Time frame: six time assessment at baseline and week 4, 8, 12, 16, 20

    Comparison of change in HbA1c for dapansutrile and placebo

  2. Change in fasting plasma glucose for dapansutrile compared to placebo

    Time frame: seven time assessement at baseline and week 4, 8, 12, 16, 20, 26

    Comparison of change in fasting plasma glucose for dapansutrile and placebo

Study contacts

Contact information is provided by the study sponsor or research team.

Marc Y. Donath, Prof.

CONTACT

[email protected]

+41 61 265 50 78

Markus Veit

CONTACT

[email protected]

+41 56 486 25 14

Sponsors and collaborators

Lead sponsor

Marc Donath

Other

Collaborators

  • CTU Kantonsspital Baden
  • Departement Klinische Forschung Universität Basel
  • European Union
  • Olatec Therapeutics, Inc.
  • State Secretariat for Education Research and Innovation, Switzerland

Registry information

Official study title

A Multi-Centre, Randomised, Double-Blind, Placebo-Controlled Trial of the Safety and Efficacy of the Oral NLRP3 Inhibitor Dapansutrile in Subjects With Type 2 Diabetes Mellitus

Acronym: Dapan-Dia

Important dates

Study start
2024
Primary completion
2028
Study completion
2028
First posted
Sep 21, 2023
Registry last updated
Feb 25, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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