About this trial
The prevalence of obesity is rising worldwide, both in low- and high-income countries, including people with HIV (PWH). Semaglutide's efficacy in achieving weight loss in obese PWH is still unexplored. The aim of this study is to assess the efficacy and safety of semaglutide in achieving greater weight loss compared to diet and excercise alone in obese PWH and to explore the effect of semaglutide on the immune function, markers of immune activation, viral reservoir, markers of glucose and lipid metabolism and gut microbiome.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Be over 18 years old
Be HIV-1 antibody positive as determined by a positive 4th generation Ag/Ab ELISA assay
Be stable on ART with a viral load suppressed <40 copies/mL for a minimum of 2 years
Have a CD4 count ≥200 cells/mm3 for a minimum of 1 year
Disqualifiers
Subjects unable to comply with the study protocol or unable to self-administer subcutaneous semaglutide
History of obesity induced by other endocrine disorders: hypothyroidism, Cushing's syndrome, primary and secondary hypogonadism, hypothalamic disorders, polycystic ovary syndrome, insulinoma
History of obesity induced by use of anti-psychotic medications known to be associated with weight gain (i.e. olanzapine, clozapine).
Treatment with GLP-1 receptor agonists (including liraglutide, semaglutide or exenatide), dipeptidyl peptidase-4 (DPP-4) inhibitors or insulin within the last 3 months (including saxagliptin, linagliptin, sitagliptin)
Trial design
Parallel
Treatments tested in this trial
Semaglutide Injectable Product
DrugSemaglutide 0.25 mg subcutaneously once weekly for 4 weeks, then Semaglutide 0.5 mg subcutaneously once weekly for 4 weeks, then Semaglutide 1 mg subcutaneously once weekly for 20 weeks. Total treatment duration 28 weeks.
Standard of care
BehavioralDiet and exercise advice for 40 weeks
Treatment groups
Trial outcomes
Primary outcomes
Changes in total body weight (in Kg)
Between-group differences in percent change from baseline to week 28 in total body weight
Secondary outcomes
Proportion of subjects not achieving 5% weight loss from baseline to week 16
Between-group differences in number of subjects who do not achieve a 5% weight loss (in Kg) from baseline to week 16
Changes in numbers and function of immune cell subsets
Between-group differences in percent change from baseline in numbers and functions of immune cells subsets (NK cells, MAIT cells, T-cells and Monocytes) as assessed through flow cytometry in a single assay
Changes in quantified viral reservoir in peripheral blood mononuclear cells (PBMCs)
Between-group differences in percent change from baseline in HIV pro-viral DNA and cell-associated RNA (CA-RNA), measured in PBMCs (copies/mL)
Changes in gut microbiome composition in stool samples
Between-group differences in percent change from baseline in gut microbiome composition (% prevalence of different microbial species) as assessed through molecular techniques in stool samples
Sponsors and contacts
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University College Dublin
Lead sponsor
University of Copenhagen
Collaborator
Rush University Medical Center
Collaborator