RecruitingBehavioural interventionComparative-effectiveness of a Healthy Lifestyle and Asthma Management Program, In-person vs. ONlineThe goal of this study is to evaluate the effectiveness of CHAMPION ("Comparative-effectiveness of a Healthy lifestyle and Asthma Management Program, In-person vs ONline"), a primary care-based intervention to address childhood obesity and asthma, and test the effectiveness of a telehealth-only version of the program. Intensive Health Behavior and Lifestyle Treatment (IHBLT), when delivered via telehealth vs. in-person among children with overweight or obesity and persistent asthma.