Trial | NCT01871740  Report issue

Title

CSPPT- Chronic Kidney Diseases Study
Enalapril Maleate and Folic Acid Tablets for Prevention of Chronic Kidney Diseases in Patients With Hypertension: a Double-blind Randomized Controlled Trial

  • Phase

    Phase 4

  • Study Type

    Interventional

  • Status

    Withdrawn

  • Intervention/Treatment

    enalapril folic acid ...

  • Study Participants

    0
The purpose of this trial is to confirm that enalapril maleate and folic acid tablets is more effective in preventing renal function decline among the patients with primary hypertension when compared to enalapril maleate.
Elevated blood concentration of homocysteine (Hcy) has been suggested as a modifiable, independent risk factor for coronary artery disease, stroke, and deep vein thrombosis. Prevalence of hyperhomocysteinemia and folic acid deficiency in China are significantly higher than those in Europe and USA. The investigators' preliminary research demonstrated that blood concentration of Hcy was negatively correlated to estimated glomerular filtration rate (eGFR), a key index of kidney function. However, the question as to whether Hcy-lowering therapy with folic acid can reduce the risk of chronic kidney disease(CKD) remains to be answered.

This study, exploiting the hypertensive population of CSPPT trial (ClinicalTrials.gov register number: NCT00794885), is intended to compare the effects of enalapril maleate and folic acid tablets versus enalapril maleate in preventing renal function decline among the patients with primary hypertension. The results from this trial may have the potential to transform current clinical and public health findings into practice in the prevention of chronic kidney disease(CKD) in China.
Study Started
May 31
2008
Primary Completion
Jun 30
2014
Study Completion
Aug 31
2014
Anticipated
Last Update
Jan 20
2016
Estimate

Drug Enalapril maleate and folic acid tablets

Enalapril maleate and folic acid tablets, (10mg/0.8mg)/tablet, taken orally and once daily for a maximum of 5 years. Combination with other anti-hypertension drugs are allowed.

Drug Enalapril maleate

Enalapril, 10mg/tablet, taken orally once daily for a maximum of 5 consecutive years. Combination with other anti-hypertension drugs are allowed.

  • Other names: Lameiya(Yabao Pharmaceutical)

Enalapril maleate and folic acid tablets Experimental

A fixed combination drug is given. The dose is fixed in enalapril 10 mg / folic acid 0.8 mg per day.

Enalapril maleate Active Comparator

Enalapril maleate 10 mg per day is given

Criteria 

Inclusion Criteria:

BP≥140/90 mmHg in both of the two screening visits or currently under anti-hypertension treatment;
45-75 years old;
Successful determination of methylenetetrahydrofolate reductase (MTHFR) C677T genotype;
For pre-menopausal women, agreed to use contraceptives during the trial;
Signed the written informed consent.

Exclusion Criteria:

Having a history of stroke;
Having a history of myocardial infarction;
Having a history of physician diagnosed heart failure;
Post- coronary revascularization;
Severe somatic disease such as cancer;
Secondary hypertension;
Congenital or acquired organic heart diseases;
Contraindicated to angiotensin-converting enzyme inhibitor (ACEI);
Having a history of ACEI adverse effects;
Currently long-term use of folic acid or vitamin B12 or vitamin B6;
Pregnant or child breastfeeding women;
Severe mental disorders;
Lab tests indicating abnormal liver or kidney function;
Unwilling to participate the trial;
Unwilling to change the current antihypertensive treatment.
No Results Posted