Efficacy and Safety of Oral Controlled-release Nicotinic Acid (CIR-NA) for the Remission of Predi… (NCT07286747) | Clinical Trial Compass
RecruitingPhase 2
Efficacy and Safety of Oral Controlled-release Nicotinic Acid (CIR-NA) for the Remission of Prediabetes. (CONCEPT)
Germany390 participantsStarted 2026-03-03
Plain-language summary
The goal of this clinical trial is to prevent the change from prediabetes (a pre-stage of type 2 diabetes mellitus (T2DM)) to T2DM in participants with prediabetes using oral CIR-NA (a nicotinic acid formulation that is designed to be released after reaching the ileum) which targeted the gut microbiota. The main questions it aims to answer are:
1. Is CIR-NA effective and does it prevent the change from prediabetes to T2DM?
2. Is the safety of CIR-NA that was observed in the Phase I clinical trial confirmed in subjects with prediabetes?
Researchers will compare CIR-NA to a placebo (a look-alike substance that contains no drug) in terms of an extended safety evaluation including safety laboratory assessments, physical examination, vital signs and 12-lead ECG.
Participants will:
Take CIR-NA or a placebo every day for 26-weeks. Visit the clinic at week 1 and subsequently once every 4 weeks for checkups and tests.
Receive standardized lifestyle recommendations regarding nutrition and physical activity during the intervention.
Who can participate
Age range
18 Years – 79 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Male and female participants ≥ 18 to \< 80 years of age (at the time of signing the informed consent).
. Body mass index ≥ 20 kg/m².
. Ability to understand and comply with the protocol.
. Signed written informed consent.
. Diagnosed prediabetes according to the current EASD/DDG guidelines. Prediabetes is present if at least one value is in the prediabetes range, but no value is in the T2DM range.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
. Presence or a history of type 2 diabetes mellitus according to the current EASD/DDG guidelines.
. Participants with relevant medical conditions (based on evaluation of medical history and screening assessments), unstable and uncontrolled underlying diseases, e.g., hypothyroidism, asthma, COPD or arterial hypertension, can be excluded per judgment of the Investigator.
. Impairment of hepatic function (one or more of liver enzymes alanine transaminase, aspartate transaminase and gamma glutamyl transferase \[\> 3-fold compared to normal range\]).
. Current infection with hepatitis B or C.
. Clinically relevant abnormal findings in medical history or screening assessments which, in the opinion of the Investigator, may put the participant at risk when participating in the trial or provide difficulties in interpreting the trial data.
. Current or history of malignancy except for completely resected basal cell carcinoma and squamous cell carcinoma of the skin.
. Alcohol or drug abuse within the last 2 years at the discretion of the Investigator.