Evaluating an emotion coaching programme for parents of young adolescents attending Child Adolescent Mental Health Services (CAMHS) in New Zealand: protocol for a multi-site feasibility trial including co-design with service users

Background Early adolescence is a time of increased vulnerability for the development of common mental health conditions such as anxiety and depression (internalising outcomes). Current treatments such as cognitive-behavioural therapy and antidepressant medication are focused on the individual and have small effect sizes, particularly in real-world clinical settings such as the public Child Adolescent Mental Health Services (CAMHS). Parents are an important and under-utilised resource in treating these conditions in young adolescents. Teaching parents how to respond to their young person’s emotions can improve emotion regulation and reduce internalising outcomes. One emotion-focused programme for parents of this age group is Tuning in to Teens (TINT). This is a structured, manualised skills group for parents only focused on teaching skills to coach young people through their emotional experiences. This study aims to investigate the impact of TINT in the clinical setting of publicly funded CAMHS in New Zealand. Methods The trial will evaluate the feasibility of a two-arm multi-site randomised control trial (RCT). Participants will be 10–14-year-olds referred to CAMHS in Wellington, New Zealand, with anxiety or depression, and their parents or guardians. Arm 1 will be parents attending and implementing TINT (in addition to the usual care received at CAMHS). Arm 2 will be usual care only. TINT groups will be facilitated by CAMHS clinicians who have been trained in the programme and will be delivered over 8 weekly sessions. Prior to the RCT, a co-design methodology will be used with service users to inform outcome measures used in the trial. A group of service users meeting the RCT criteria will be recruited to take part in workshops to help determine their priority outcomes. Measures based on the results of workshops will be included in the outcome measures. The primary feasibility outcomes will be the recruitment and retention of participants, acceptability of the intervention for service users and clinicians and acceptability of outcome measures. Discussion There is a need to improve outcomes for the treatment of adolescent anxiety and depression. TINT is a programme with the potential to enhance outcomes for those accessing mental health services by providing targeted support to parents of adolescents. This trial will inform whether a full RCT is feasible to evaluate TINT. Including service users in the design will increase its relevance of an evaluation in this setting. Trial registration The Australian New Zealand Clinical Trials Registry (ACTRN): ACTRN12622000483752. Registered on 28 March 2022.