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The effect of experimental hyperglycemia and AT1 receptor blockade on renal hemodynamics in impaired glucose tolerance

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN07427212
Enrollment
24
Registered
2008-01-09
Start date
2005-07-26
Completion date
Unknown
Last updated
2015-01-13

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

Conditions

Impaired glucose tolerance/ renal changes in prediabetes Nutritional, Metabolic, Endocrine Impaired glucose tolerance/ renal changes in prediabetes

Interventions

12 participants were recruited in each of the two groups. Statistical calculation was carried out by the Institute of Statistics, Technical University of Munich. Participants of both groups (control

Sponsors

Technical University of Munich (Germany)
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: 1. Males 2. 18-70 years old 3. Impaired Glucose Tolerance (for the intervention group [IGT-Group]) (tested by the oral glucose tolerance test according to the World Health Organisation) and normoglycemic patients (for control group [healthy subjects])

Exclusion criteria

Exclusion criteria: 1. Renal or liver insufficiency 2. Micro-or macro-albuminuria 3. Overt diabetes mellitus

Design outcomes

Primary

MeasureTime frame
The following were measured at rest (U1 rest, U2 rest) and during hyperglycemic stress testing (U1 stress, U2 stress) with and without AT1 receptor blocker treatment: 1. Glomerular filtration rate (inulin clearance) 2. Renal plasma flow (Para-AminoHippurate [PAH] clearance) U1: Without AT1 receptor blocker U2: After a 4-week treatment with valsartan

Secondary

MeasureTime frame
The following were assessed at U1 and U2: 1. High-sensitivity C-Reactive Protein (CRP) 2. Adiponectin 3. HbA1c (blood tests) U1: Without AT1 receptor blocker U2: After a 4-week treatment with valsartan

Countries

Germany

Outcome results

None listed

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