Background: To achieve optimal outcomes, adolescents with chronic or end-stage kidney disease must undergo healthcare transition (HCT) preparation from a pediatric- to an adult-focused setting. The pediatric nephrology group at the Fundación Valle del Líli in Cali, Colombia, collaborated with the University of North Carolina Chapel Hill STARx Program and Hospital Infantil de México Federico Gómez to start an HCT preparation program using their tools. The objective of this study was to evaluate the efficacy of the "ALL YOU NEED IS LOVE" syllabus (Spanish version) and its effects on HCT readiness in young patients with kidney failure, including renal transplants.

Methods: A pre-test/post-test quasi-experimental study was conducted without control group in 11- to 21-year-old consecutive patients with kidney failure followed at the Fundación Valle de Lili. Using the TRxANSITION Index, HCT readiness skills were measured before and after implementing the "ALL YOU NEED IS LOVE" syllabus, an educational curriculum delivered in three monthly 2-hour sessions. Analysis was performed using linear mixed models in R Studio software to evaluate intervention effects while accounting for participant characteristics.

Inclusion Criteria:

• Patients aged 11 to 21 years along with their primary caregivers
• Either renal transplant recipients or in a renal transplant protocol
• Under follow-up by the Nephrology Service at Fundación Valle del Lili.

Exclusion Criteria:

• Patients were excluded if they did not sign the informed consent and/or assent to participate in the study.
• If they lost their care agreement with Fundación Valle del Lili due to administrative reasons related to their health insurance provider