This current study aims to recruit a sample of new kidney transplant recipients (n=50) from two transplant sites in London. Participants will be randomized to either the 12-week kidney transplant specific novel online weight gain prevention resource (n=25) or usual care (n=25). All participants will be assessed at baseline, 12 weeks and 12 months. The primary outcome of this study is feasibility (screening, recruitment, randomization, retention, adherence to the intervention and adherence to the study visits). The research team will also assess the ability to collect measures for a definitive study (body weight, body mass index, body composition, quality of life, self-efficacy, fatigue, arterial stiffness and physical function).
A nested qualitative study will capture participant experience at two time points during this 12 month trial. At 3 months semi-structured individual interviews will be conducted in a purposive approximately 6 to 10 of the intervention participants until data saturation is achieved. These interviews will assess the experience of using the online intervention. At 6 months a purposive sample of approximately 16 participants from both groups will complete individual semi-structured interviews to assess the experiences of participating in this trial.