Teplan 2002.

Study characteristics
Methods	Study design: parallel RCT Recruitment: enrolment start and finish date not reported Study duration: up to 36 months
Participants	Country: Czech Republic Setting: not reported Inclusion criteria: included individuals who were obese BMI ≥ 30 kg/m² and at least 1 year post kidney transplant Number: intervention group (128); control group (130) Age range: 22 to 78 years Sex (M/F): 108/150 Baseline characteristics Nationality: not reported Ethnicity: not reported Mean baseline BMI (kg/m²): not reported Stage of CKD: kidney transplant recipients > 1 year post transplant Mean baseline eGFR ± SD (mL/min/1.73 m²): not reported Mean baseline SBP ± SD (mmHg): not reported Mean baseline DBP ± SD (mmHg): not reported Mean baseline energy intake ± SD (kcal/day): not reported Comorbid conditions: not reported Exclusion criteria: not reported
Interventions	Intervention type classification: mixed (lifestyle + pharmacological) Weight loss intervention/s used: dietary + pharmacological Intervention group (diet group) Individualised low energy and low fat diet + corticoids withdrawal. After 3 months participants were given orlistat at a dose of up to 3 x 120 mg/day and statins for 3 years. Nil further information on who delivered the intervention and what participants received was reported Control group Usual care for up to 3 years. Nil further information on what was usual care Co‐interventions Not reported
Outcomes	BMI (kg/m²) CrCl (mL/s) Proteinuria (units not reported) Fasting blood glucose (mmol/L) Total cholesterol (mmol/L) LDL cholesterol (mmol/L) HDL cholesterol (mmol/L) Triglycerides (mmol/L)
Notes	Founding source: IGA ND/5686‐3 Trial registration: not reported Possible conflicts of interest for study author: not declared (no statement provided) Abstract‐only publication
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Insufficient information to permit judgement
Allocation concealment (selection bias)	Unclear risk	Insufficient information to permit judgement
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Insufficient information to permit judgement
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Insufficient information to permit judgement
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Insufficient information to permit judgement
Selective reporting (reporting bias)	Unclear risk	Insufficient information to permit judgement
Other bias	Unclear risk	Insufficient information to permit judgement