The Australian New Zealand Clinical Trials Registry contains over 25,500 trials (March 2025) plus additional Australian and New Zealand trials imported from ClinicalTrials.gov.
The registry displays published trial results and also publications related to the trial.
The content can also be searched via consumer-friendly front ends:
Default operator AND (breast cancer retrieves the same results as breast AND cancer)
Boolean operators AND OR (AND is processed before OR)
Phrase searching "breast cancer"
Nesting (BREAST OR COLON) AND CANCER
If parentheses are not used, the terms are searched in the following order of precedence: AND, OR
i.e. breast OR colon AND cancer will be searched as breast OR (colon AND cancer)
Truncation There does not seem to be a truncation operator
Field tags Field searching is available in the 'Advanced' search option.
Hyphens non-randomized, nonrandomized, non randomized and “non randomized” all return different
results, so should all be searched separately
Help pages How to search
Example (BREAST OR COLON) AND CANCER
Saved searches No
Export tagged Excel spreadsheet (XML currently unavailable - March 2025)
Updated 13 March 2025