Thiazide diuretics to lower blood pressure in people on peritoneal dialysis
Official title: Blood Pressure Control With Thiazide Diuretics in Peritoneal Dialysis Patients
Run by Chinese University of Hong Kong · NCT07271420 · Data updated 2026-11-12
This trial will try a daily 25 mg hydrochlorothiazide pill to lower blood pressure in people on peritoneal dialysis whose blood pressure is above 140/90.
Quick facts
| Phase | Phase 4 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 40 (estimated) |
| Sponsor | Chinese University of Hong Kong Academic / other |
| Locations | 1 site (Hong Kong) |
| Status | Recruiting |
| Started | January 1, 2020 |
| Main results expected | December 31, 2026 |
| Study ends | June 30, 2027 |
| Registry record updated | December 9, 2025 |
| Trial ID | NCT07271420 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults on chronic peritoneal dialysis with uncontrolled hypertension (SBP >140 mmHg and/or DBP >90 mmHg) who can attend the Hong Kong study site and are not scheduled for dialysis change or transplant within three months.
✕Probably not a fit
Patients without meaningful residual renal function, those with life expectancy under three months, or those planning to switch to hemodialysis or undergo transplantation soon are unlikely to benefit from this approach.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a prospective, single-center treatment-withdrawal crossover trial enrolling 10 chronic peritoneal dialysis patients with uncontrolled hypertension. Participants receive hydrochlorothiazide 25 mg once daily in addition to their usual care for 90 days, followed by a 14-day washout and a 90-day control period. Blood pressure changes (systolic and diastolic) are tracked to compare the on-treatment and off-treatment periods. The study excludes patients with very limited life expectancy or those planning conversion to hemodialysis or kidney transplant within three months.
Why it matters
Potential benefit: If successful, adding hydrochlorothiazide could improve blood pressure control and potentially reduce cardiovascular risk in peritoneal dialysis patients with some residual kidney function.
How similar studies have gone: Prior data are limited and mixed; small studies and clinical experience suggest thiazides can lower blood pressure when residual renal function exists, but robust evidence in peritoneal dialysis patients is sparse.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Patients on chronic peritoneal dialysis, with uncontrolled hypertension (SBP \>140 mmHg and/or DBP \>90 mmHg) Exclusion Criteria: * Patients with a life expectancy of less than 3 months, planned conversion to hemodialysis, or scheduled kidney transplantation within 3 months
Where it's running
-
Prince of Wales Hospital. The Chinese University of Hong Kong
Hong Kong, Hong Kong Recruiting
Study contacts
- Study coordinator: Gordon Chan, MD, MRCP
- Email: cck295@ha.org.hk
- Phone: 0085235052211
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.