Registered and ongoing trials

This site lists published studies. Trials that are registered but not yet reported live in the public registries. The links below run a live search on each one, so the list stays current without this page changing.

Search the registries

• ClinicalTrials.gov: carnosine (United States registry, used worldwide)
• ANZCTR: carnosine (Australia and New Zealand). Several of the metabolic trials on this site were run in Melbourne.
• EU Clinical Trials Register
• WHO ICTRP searches most national registries at once. Type carnosine in the search box.

Search separately for beta-alanine and polaprezinc; registries index the substance given, not the molecule studied.

Registry entries describe a plan, not a result. A trial listed as completed may never publish.

What to look for in a registry entry

1. The date it was registered, against the date recruitment started.
2. The primary outcome. If the published paper reports a different one, ask why.
3. The planned sample size, against the number in the paper.
4. Who is sponsoring it.

When a registered trial publishes, it is added to the research log and the database.