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Use of an antidiabetic drug (Empagliflozin) to lower the blood level of 1,5-anhydroglucitol in patients deficient in the glucose-6-phosphate transporter (GSD1b) and the phosphatase G6PC3, both of the endoplasmic reticulum, to treat their recurrent infections by normalizing their blood neutrophil counts. Neutrophils are the most abundant white blood cells in our blood that are essential to help fighting infections. 1,5-anhydroglucitol is a sugar derivative with no known function.

Evaluation of the safety and efficacy of administration of Empagliflozin in a new treatment for neutropenia in patients with Glycogen Storage Disease type 1b (GSD1b) and G6PC3 deficiency. - GLYCO-1B

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2018-004191-35-BE
Enrollment
5
Registered
2019-03-05
Start date
2019-04-12
Completion date
Unknown
Last updated
2023-10-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

(1) Severe Congenital Neutropenia type 4 (SNC4) due to a deficiency in G6PC3, a phosphatase of the endoplasmic also known a Ubiquitous glucose-6-phosphatase and (2) the neutropenia in Glycogen Storage Disease type 1b due to a deficiency in the glucose-6-phosphate transporter (G6PT / SLC37A4) of the endoplasmic reticulum.

Interventions

Trade Name: Jardiance Product Name: Empagliflozin Product Code: A10BK03 Pharmaceutical Form: Film-coated tablet

Sponsors

Cliniques universitaires Saint-Luc
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Glycogenosis type 1b confirmed by biochemical analyzes and / or genetic analysis. - Alternatively, G6PC3 deficiency confirmed by genetic analysis - Informed consent signed by the recipient and / or parents / assigns. - Information and agreement of the referring medical team. Are the trial subjects under 18? yes Number of subjects for this age range: 5 F.1.2 Adults (18-64 years) no F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: - Presence of advanced fibrosis (Metavir F4) or cirrhosis. - Impossibility of long-term and / or non-compliance monitoring. - Other medical problems which, in the opinion of the physicians in charge of the patient, would constitute a contraindication to the procedure.

Design outcomes

Primary

MeasureTime frame
Main Objective: Ubiquitous glucose-6-phosphatase deficiency (G6PC3) and glucose-6-phosphate transporter deficiency (G6PT / SLC37A4) both cause neutropenia. The purpose of our trial is to test the effect of the effectiveness of Empagliflozin on the urinary excretion and elimination of 1,5-anhydroglucitol from the blood in patients with G6PT deficiency (GSD Ib) and those who are deficient in G6PC3. This should allow patients to significantly lower the level of the toxic compound 1,5-anhydroglucitol-6-phosphate, that we found to accumulate in their neutrophils, and thereby treat their neutropenia. Empagliflozin (marketed in Belgium as Jardiance®) belongs to the class of drugs known as oral hypoglycemic agents. This project is the outcome of the work from researchers and doctors looking after these patients to translate the results from fundamental research, to be soon published in PNAS (Veiga-da-Cunha et al.), into a clinical trial that will very likely benefit the patients.;Secondary Objective: Not applicable;Primary end point(s): -Safety: absence of hypoglycaemia due to gliflozin treatment. -Efficacy: Increased neutrophil count;Timepoint(s) of evaluation of this end point: Day 2, day 3, day 5, day 7, day 14, day 21, day 28, day 35, day 42, day 49, day 56

Secondary

MeasureTime frame
Secondary end point(s): -Efficacy: -Decrease in the number of infections -Decrease in the number of episodes of oral aphtosis (stomatitis) -Decrease of blood 1,5-anhydroglucitol -Decrease in the level of 1,5-anhydroglucitol-6-phosphate in neutrophils -Increased excretion of urinary 1,5-anhydroglucitol -Improved neutrophilic function -Improved platelet function;Timepoint(s) of evaluation of this end point: Day 2, day 3, day 5, day 7, day 14, day 21, day 28, day 35, day 42, day 49, day 56

Countries

Belgium

Contacts

Public Contactgastroentérologie-hépatologie pedia

Cliniques universitaires Saint-Luc

pcic-saintluc@uclouvain.be3227641933

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026