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Synergy Effect of the ARB plus HCTZ Combination therapy on Na dynamics in CKD

Synergy Effect of the ARB plus HCTZ Combination therapy on Na dynamics in CKD - Synergy Effect of ARB/HCTZ Combination on Na dynamics

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000014034
Enrollment
40
Registered
2014-05-22
Start date
2014-02-07
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Chronic kidney disease(CKD)

Interventions

additional medication of losartan (50mg/d) for 2 months to the preceding 2 month-treatment with HCTZ (12.5mg/d) additional medication of HCTZ (12.5mg/d) for 2 months to the preceding 2 month-treatmen

Sponsors

Department of Cardio-Renal Medicine and Hypertension, Nagoya City University Graduate School of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. age 20y or more 2. CKD based on K/DOQI criteria 3. Office BP >130/80 on at least one occasion before enrollment 4. documented informed consent

Exclusion criteria

Exclusion criteria: 1. previous treatment with ARB or diuretics 2 months before enrollment 2. contraindication to losartan or HCTZ (history of the allergic reaction, bilateral renal artery stenosis) 3. presence or possibility of pregnancy 4. HbA1c >9.0 % 5. GOT >100, or GPT >85 6. endocrine hypertension 7. accelerated or malignant hypertension 8. serious conditions with congestive heart failure, coronary diseases, arrhythmia or systemic diseases 9. nephrotic syndrome (serum albumin <2.5 g/dl) 10. patients under hemodialysis therapy 11. any reason for ineligibility suggested by the attending doctor

Design outcomes

Primary

MeasureTime frame
Changes in the tubular sodium load (PNa x GFR), tubular sodium reabsorption, and urinary sodium excretion, circadian rhythms of blood pressure and natriuresis

Secondary

MeasureTime frame
Urinary angiotensinogen excretion (intrarenal RAS activity), ultrasonic examination of the kidney (RI), heart rate variability obtained by holter ECG (sympathetic activity)

Countries

Japan

Contacts

Public ContactToshiyuki Miura

Nagoya City University Graduate School of Medical Sciences Cardio-Renal Medicine and Hypertension

tmiura@med.nagoya-cu.ac.jp81-52-853-8221

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026