ANZCTR General Information


What is the Australian New Zealand Clinical Trials Registry (ANZCTR)?

The ANZCTR is an online public registry of clinical trials, held at the NHMRC Clinical Trials Centre, University of Sydney. It is a Primary Registry in the World Health Organization (WHO) Registry Network, which means that it fulfils certain criteria for content, quality and validity, accessibility, unique identification, technical capacity and administration.

The ANZCTR accepts both interventional and observational studies for registration from all countries and from the full spectrum of therapeutic areas including trials of pharmaceuticals, surgical procedures, preventive measures, lifestyle, devices, treatment and rehabilitation strategies and complementary therapies.

The registry was established in 2005 with $1.5 million in funding from the Australian Government, through a National Health & Medical Research Council Enabling Grant. The ANZCTR is overseen by an Advisory Committee with wide representation from a variety of stakeholders including government, clinicians, the research community, journal editors, the pharmaceutical industry and regulator, and consumers.

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Who funds the ANZCTR?

The ANZCTR receives funding from Australian Government - Department of Health, Therapeutic Innovation Australia, National Collaborative Research Infrastructure Strategy, and the Health Research Council of New Zealand.

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What is the purpose of the ANZCTR and why it is important?

The ANZCTR is part of the worldwide initiative to make public all clinical trials being conducted. The purposes of this are as follows:

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How can I access the registry?

The ANZCTR is freely available at www.anzctr.org.au

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How do I search the registry?

Please refer to the 'How to search' page.

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How can I volunteer for a clinical trial?

Please refer to the 'How to get involved' page

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Are there any other Australian/New Zealand clinical trials registries?

The ANZCTR is the only Primary Registry in the WHO Registry Network in Australia/New Zealand.
The ANZCTR has imported data from, and exported data to, various alliance organisations, including the Cochrane Renal Group and Multiple Sclerosis Research Australia (MSRA). The ANZCTR is also the primary data source for clinical trial information displayed on the consumer-friendly Australian Clinical Trials website (www.australianclinicaltrials.gov.au) managed by the Australian government and the Australian Cancer Trials website (www.australiancancertrials.gov.au) managed by Cancer Australia.

Other Australian and New Zealand groups maintain independent registers on specific disease areas, including:


In addition, the Therapeutic Goods Administration (TGA) maintains an independent register of ongoing trials on therapeutic goods in Australia.

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Are there other international registries?

Yes. There are currently 15 Primary Registries in the World Health Organization Registry Network. For a full list, please see: https://www.who.int/ictrp/network/primary/en/

In August 2005 the World Health Organization (WHO) launched its International Clinical Trial Registry Platform (ICTRP). The ICTRP's main objectives are to ensure that all clinical trials are registered and can be easily found as well as settings standards for good registry practice.

In May 2007, the ICTRP launched its global search portal (https://www.who.int/trialsearch). The 15 Primary Registries plus the US-based registry, ClinicalTrials.gov, all contribute data to the search portal. From the portal, users can search for trials across all of these registries as well as link back to the original record in the primary registry.

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Can I advertise on your website?

The ANZCTR website does not host or receive funding from advertising.

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Can I download registration information?

Search results can be downloaded into XML format by selecting the most appropriate option from the drop-down menu in the top right hand corner of the 'Search results' page as follows, and clicking 'DOWNLOAD':

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How do I cite an ANZCTR study record in a publication?

An example citation is:

Australian and New Zealand Clinical Trials Registry [Internet]: Sydney (NSW): NHMRC Clinical Trials Centre, University of Sydney (Australia); 2005 - Identifier ACTRN12605000004662. A multi-centre, randomised, double-blind, placebo-controlled clinical trial examining the efficacy and safety of low-dose aspirin after initial anticoagulation to prevent recurrent venous thromboembolism; 2005 Jul 12 [cited 2008 June 18]; [1 page]. Available from www.anzctr.org.au/ACTRN12605000004662.aspx.

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