Post-meal low blood sugar (postprandial hypoglycemia) is a common problem after certain stomach surgeries like gastric bypass or stomach removal. It usually happens 1 to 3 hours after eating and can cause symptoms such as tiredness, hunger, sweating, dizziness, trouble speaking, or even fainting. Right now, there is no approved medication for this condition-only a careful diet reduced in sugars and refined carbohydrates can sometimes help reduce symptoms.
The AnPHy-ReD study is a personalized research study, designed for just one patient. This patient is a 52-year-old man who has been struggling with severe post-meal low blood sugar ever since his stomach was removed due to tumor in 2017. He also has end-stage kidney disease and needs dialysis three times a week.
The study is being conducted at the Cantonal Hospital of Olten in Switzerland and lasts 10 weeks, including 24 study visits. Most of these visits will happen during the patient's regular dialysis sessions. For 6 weeks, the patient will take either the drug Anakinra or a placebo (a substance with no active ingredient), in a randomly chosen order. Neither the patient nor the doctors will know which one he is taking at any given time.
During the study, the medical team will perform various tests, including physical check-ups and blood samples to look at sugar levels, various hormone levels and inflammation in the body. The patient will also wear a continuous glucose monitor (CGM) to track his blood sugar levels 24/7. In addition, he will do several mixed meal tests-this means drinking a shake containing fats, proteins, and sugars during a study appointment to see in real time how his body processes food, with doctors measuring changes in blood sugar, hormone and inflammation markers over time. During the study duration any side effects or symptoms will be closely monitored.
At the end of the study, the team will compare the results between the times the patient took Anakinra and the times he took the placebo. This will help find out if Anakinra can reduce sharp drops in blood sugar after meals and improve his overall condition.
total gastrectomy
severe episodes of postprandial hypoglycaemia after total gastrectomy
None
Crossover
Anakinra (interleukin-1 receptor antagonist)
DrugAnakinra (Kineret®; r-metHuIL-1ra, Swedish Orphan Biovitrum AB) is a recombinant, non-glycosylated form of the human interleukin-1 receptor antagonist (IL-1Ra). It is a clear, colourless-to-white solution, provided as a 150mg/mL solution in pre-filled syringes, each containing of 100 mg of Anakinra in 0.67ml. On the assigned study days, the patient will receive in a double-blind manner 100 mg of Anakinra intravenously through the hemodialysis circuit, administered 30 minutes before the end of the dialysis session.
Placebo Comparator (0.9% NaCl)
DrugPlacebo comparator will be 0.9% saline solution. A similar size and type of syringe will be used as for the Anakinra syringe making it difficult to distinguish which treatment of the two the patient is receiving. The patient will receive 0.9% saline solution intravenously through the haemodialysis circuit 30 minutes before the end of the dialysis session, following the same administration procedure as Anakinra to maintain blinding.
Mean Amplitude of Sensor Glucose Excursions (MAGE) during Anakinra treatment compared to placebo
Mean Amplitude of Sensor Glucose Excursions (MAGE) during Anakinra treatment compared to placebo, assessed using cumulative data from Continuous Glucose Monitoring System from all 48-hour treatment periods (48 hours following study-drug administration, Anakinra or Placebo).
Prevalence and severity of postprandial hypoglycaemia symptoms during Anakinra treatment compared to placebo
Prevalence and severity of postprandial hypoglycaemia symptoms during Anakinra treatment compared to placebo, assessed using cumulative data from Continuous Glucose Monitoring from all 48-hour treatment periods. Post-prandial hypoglycaemia symptoms and their severity will be evaluated by the patient using the Edinburgh Hypoglycemia Symptom Scale (EHSS) and are accompanied by a decrease in blood glucose levels within the postprandial period as evaluated through the CGMS. The postprandial period is defined as the 3 hours following meal intake. A minimum blood glucose cut-off value is not required for symptom reporting. Each treatment period spans the 48 hours following study-drug administration (Anakinra or Placebo).
Time Below Range (TBR)
Time Below Range (TBR): The percentage and total duration of sensor glucose readings below thresholds of 3.3 mmol/L, 3.0 mmol/L, and 2.7 mmol/L during Anakinra treatment compared to placebo, assessed using cumulative data from all 48-hour treatment periods (48 hours following study-drug administration, Anakinra or Placebo).
Time in hyperglycaemia
Time in hyperglycaemia: The percentage and total duration of sensor glucose readings above 10 mmol/L during Anakinra treatment compared to Placebo, assessed using cumulative data from all 48-hour treatment periods (48 hours following study-drug administration, Anakinra or Placebo).
Pattern of Sensor Glucose
Pattern of Sensor Glucose: The slope of postprandial glucose measurements calculated as the maximal rate of increase and decrease of glucose levels observed over 20 minutes in the postprandial period, compared between Anakinra treatment and placebo, based on data from all 48-hour treatment periods (48 hours following study-drug administration, Anakinra or Placebo). The postprandial period is defined as the 3 hours following meal intake.
Comparison of Glycemic Variability and Extremes Between Interventional and Screening Period
Comparison of the entire interventional period with the screening period regarding to the following parameters as defined above: Time Below Range, Time in hyperglycaemia, Pattern of Sensor Glucose, and Mean Amplitude of Glucose Excursions.
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