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The overall aim of this study is to develop a sustainable hypoglycemia correction strategy.
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Obesity is a major global public health concern, for which the most effective therapy is bariatric surgery. Beyond weight loss, bariatric surgery exerts powerful effects on glucose metabolism, achieving complete type 2 diabetes remission in up to 70% of cases. An exaggeration of these effects, however, can result in an increasingly recognized metabolic complication known as postprandial hyperinsulinaemic hypoglycaemia or post-bariatric hypoglycaemia (PBH). The condition manifests 1-3 years after surgery with meal-induced hypoglycaemic episodes. Emerging data suggests that PBH is more frequent than previously thought and affects approximately 30% of postoperative patients, more commonly after gastric bypass than sleeve gastrectomy. Of note, asymptomatic PBH is common, as shown in studies using continuous glucose monitoring (CGM). It is known from extensive research in people with diabetes that recurrent episodes of hypoglycaemia impair counter regulatory defences against subsequent events, predisposing patients to severe hypoglycaemia.
Despite the increasing prevalence of PBH, clinical implications in this population are still unclear. Anecdotal evidence from patients with PBH suggests a high burden for these patients due to the recurrent hypoglycaemias with possibly debilitating consequences. It is well established that even mild hypoglycaemia (plasma glucose of 3.4 mmol/L) in diabetic and non-diabetic patients impairs various cognitive domains. Of note, some of the cognitive functions remain impaired for up to 75 min, even when the hypoglycaemia is corrected. Further concerns exist from observational studies showing associations between PBH during pregnancy and poor foetal growth.
Thus, it is important to timely detect and treat hypoglycaemia with an intervention that allows quick recovery of glycaemia to a safe level, thereby alleviating symptoms and eliminating the risk of potentially hazardous sequelae. Current diabetes-inspired guidelines recommend to correct hypoglycaemia with 15-20 g fast-acting carbohydrates, preferably glucose. However, clinical experience with PBH patients shows that the rapid spikes in glycaemia following correction of hypoglycaemia with such proposed strategies may trigger rebound hypoglycaemia in PBH patients. However, hypoglycaemia correction strategies that are tailored to the specific needs of PBH do not exist currently. Previous research suggests that glucose co-ingested with amino acids induces a metabolic environment that could be favourable for PBH patients due to elevated glucagon levels. However, it currently remains speculative whether combinations of amino acids with glucose could offer more suitable and sustainable PBH correction strategies.
Given the potentially hazardous consequences of hypoglycaemia, development of hypoglycaemia management strategies to adequately predict and treat critical blood glucose levels in the PBH population are urgently needed. Such strategies have to significantly lower the burden of PBH and increase patient safety.
The overall aim or the PBH forecast project (containing 3 WPs) is to prevent hypoglycaemic events in patients with PBH and to develop a sustainable hypoglycaemia correction strategy. The primary objective of WP 2 is to test different nutritional strategies for sustainable hypoglycaemia correction (e.g. minimising time spent hypoglycaemic without causing rebound hyper- and hypoglycaemia).
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8 participants in 6 patient groups
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Data sourced from clinicaltrials.gov
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