Table 1

Trial registration data

Primary registry and trial identifying number	Australian New Zealand Clinical Trials Registry: ACTRN12617000706370
Date of registration in primary registry	17/05/2017
Secondary identifying numbers	NA
Source(s) of monetary or material support	National Heart Foundation of Australia
Primary sponsor	The University of Sydney
Secondary sponsor	NA
Contact for public queries	Dr Jodie Ingles j.ingles@centenary.org.au
Contact for scientific queries	Dr Jodie Ingles j.ingles@centenary.org.au
Public title	Use of an aid to improve communication of genetic risk information to families with hypertrophic cardiomyopathy (HCM)
Scientific title	Use of a custom designed aid to improve communication of genetic results in families with HCM
Countries of recruitment	Australia
Health condition (s) or problem (s) studied	HCM
Intervention	Use of a custom designed aid to communicate HCM genetic test results
Key inclusion and exclusion criteria	HCM probands with a genetic result ready for return. Participants must be aged 18 years or older. Sufficient written English skills as nominated by the participant.
Study type	Prospective randomised controlled trial
Date of first enrolment	25 November 2016
Target sample size	45
Recruitment status	Recruiting
Primary outcome (s)	Ability and confidence of the proband to communicate genetic results to at-risk relatives.
Key secondary outcomes	Secondary outcomes will assess genetic knowledge, satisfaction with services, outcomes from genetic counselling and psychological adaptation to genetic information.