NHMRC Clinical Trials Centre

Trials
Cancer trials
Cardiovascular trials
Other trials
	ASPIRE
	BOOST II
	INIS
Trial support
Trials registry

Randomisation services

The randomisation centre provides a randomisation service for trials run by the CTC and for consulting clients.

It provides an access point for all randomisation calls for all trials. The service caters for dynamic balanced randomisation, minimisation and permuted blocks.

The CTC can provide randomisation via an interactive voice response system (IVRS) 24 hours a day. It is available for both local and international trials.

An operator-assisted randomisation service is also available daily from 8 a.m. to 6 p.m. (24 hours a day for acute cardiovascular trials).

For trials already registered with the CTC
Randomise patients at:
Australia: (02) 9562 5000
International: 61 2 9562 5000

For new trials
Contact enquiry@ctc.usyd.edu.au

Randomisation is allocation of therapy or treatment in a clinical study by chance. It is a method used to eliminate biases (systematic differences).
Before the allocation, neither subjects nor the investigators are aware of precisely which treatment the subject will get. Common methods of allocation are using tables of random numbers or a random number generated on a computer.
Therefore, randomisation is scientifically managed chance.