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• Introduction: Type 1 diabetes (T1D) is a chronic autoimmune disease, characterised by progressive destruction of the insulin-producing β cells of the pancreas. One immunosuppressive agent that has recently shown promise in the treatment of new-onset T1D subjects aged 12-45 years is ATG, Thymoglobuline®, encouraging further exploration in lower age groups. Methods and analysis: MELD-ATG is a phase 2, multi-centre, randomised, double-blind, placebo-controlled, multi-arm parallel-group trial in participants 5-25 years diagnosed with T1D within 3–9 weeks of planned treatment day 1. A total of 114 participants will be recruited sequentially into seven different cohorts with the first cohort of 30 participants being randomised to placebo, 2.5 mg/kg, 1.5 mg/kg, 0.5 mg/kg and 0.1 mg/kg ATG total dose in a 1:1:1:1:1 allocation ratio. The next six cohorts of 12-15 participants will be randomised to placebo, 2.5 mg/kg, and one or two selected middle ATG total doses in a 1:1:1:1 or 1:1:1 allocation ratio, as dependent on the number of middle doses, given intravenously over 2 consecutive days. The primary objective will be to determine the changes in stimulated C-peptide response over the first 2 hours of a mixed meal tolerance test (MMTT) at 12 months for 2.5mg/kg ATG arm versus the placebo. Conditional on finding a significant difference at 2.5 mg/kg, a minimally effective dose will be sought. Secondary objectives include the determination of the effects of a particular ATG treatment dose on 1) stimulated C-peptide, 2) HbA1c, 3) daily insulin dose, 4) time in range by intermittent continuous glucose monitoring (CGM) measures, 5) fasting and stimulated dry blood spot (DBS) C-peptide measurements. Ethics and dissemination: MELD-ATG received first regulatory and ethical approvals in Belgium in September 2020 and from the German and UK regulators as of February 2021. The publication policy is set in the INNODIA grant agreement (www.innodia.eu)., Union’s Horizon 2020 research and innovation program EFPIA JDRF The Leona M. and Harry B. Helmsley Charitable Trust

Objectives: To determine differences in body composition and glucose metabolism according to childhood growth outcomes, in a population-based sample of children born small for gestational age (SGA). Methods: Single-centre study of 259 children born SGA identified through hospital records and contacted when aged 4-7years. Questionnaire data on pre/perinatal history and growth parameters during childhood were collected from the parents and, in a subgroup of 150 children, face-to-face assessments were performed, including anthropometric parameters, lean and fat mass, blood pressure, fasting glucose and C-peptide. Results: Based on the questionnaires few children had formal clinic follow-up of growth, but 7% of the cohort showed height and weight

Purpose of review: Individuals with type 1 diabetes (T1D) have excess cardiovascular risk and reduced life expectancy. Adolescence is the time when the first signs of vascular complications appear and a critical window for interventions. This article reviews recent evidence on cardiometabolic risk factors and their management in youth with T1D. Recent findings: Adolescents with T1D show early signs of vascular complications, as a result of several cardiometabolic risk factors. Poor glycemic control is one of the main risk factors and the main target of treatment. However, only a minority of adolescents with T1D reaches recommended targets for glycemic control. Hypertension, dyslipidemia, smoking, alcohol use, obesity and insulin resistance are other common cardiometabolic risk factors in this age group. Recent data confirm that screening for these risk factors is suboptimal and use of pharmacological interventions for hypertension and dyslipidemia remains low. Data on adjunctive non-insulin agents to improve glycemic control and other cardiometabolic risk factors are still lacking in this age group. Summary: Vascular complications and the associated mortality remain a major issue for youth with T1D. Better screening strategies for cardiometabolic risk factors and interventions are required to improve the longterm prognosis of youth with T1D.