NCT04952051

Brief Summary

Hypertension is a common condition that can cause serious events such as stroke, coronary heart disease and heart failure. Homocysteine (Hcy) is a substance in the body that is harmful to blood vessels. Hyperhomocysteinemia (plasma Hcy≥10 mol/L), which is associated with hypertension, significantly increases the risk of stroke. This type of high blood pressure is called type "H" hypertension. Enalapril folic acid tablet is an innovative drug developed independently in China and is the first choice for the treatment of H type hypertension. Patients with type H hypertension should be treated with enalapril folic acid tablets to reduce stroke. However, some patients had poor blood pressure control after monotherapy. At this time, other antihypertensive drugs should be used in combination. Amlodipine and Hydrochlorothiazide are the most commonly used and the best combination. The purpose of this study was to observe the difference in the efficacy of enalapril folic acid tablets in patients with uncontrolled blood pressure who were well tolerated and randomized to aminoclodipine or hydrochlorothiazide in reducing stroke and other cardiovascular and cerebrovascular events, and to explore the relationship between various alternative measures and efficacy.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,000

participants targeted

Target at P75+ for phase_3 hypertension

Timeline
Completed

Started Jul 2014

Longer than P75 for phase_3 hypertension

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2014

Completed
5.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2019

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2020

Completed
12 months until next milestone

First Submitted

Initial submission to the registry

June 20, 2021

Completed
17 days until next milestone

First Posted

Study publicly available on registry

July 7, 2021

Completed
Last Updated

July 23, 2021

Status Verified

June 1, 2021

Enrollment Period

5.1 years

First QC Date

June 20, 2021

Last Update Submit

July 18, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • Stroke rate

    Until 5 years

Secondary Outcomes (5)

  • Rate of combined end points of cardiovascular events

    Until 5 years

  • Rate of all causes of death

    Until 5 years

  • Rate of first or recurrent ischemic stroke

    Until 5 years

  • Rate of first or recurrent hemorrhagic stroke

    Until 5 years

  • Rate of myocardial infarction

    Until 5 years

Other Outcomes (4)

  • Rate of heart failure (hospitalization)

    Until 5 years

  • Rate of coronary revascularization

    Until 5 years

  • Rate of peripheral arterial revascularization

    Until 5 years

  • +1 more other outcomes

Study Arms (2)

Enalapril Folic Acid Tablets Combined With amlodipine

EXPERIMENTAL

Enalapril Folic Acid Tablets 10.8mg Combined With amlodipine 5 or 10mg

Drug: Enalapril Folic Acid Tablets Combined With amlodipine

Enalapril Folic Acid Tablets Combined With hydrochlorothiazide

ACTIVE COMPARATOR

Enalapril Folic Acid Tablets 10.8mg Combined With hydrochlorothiazide 12.5 or 25mg

Drug: Enalapril Folic Acid Tablets Combined With hydrochlorothiazide

Interventions

Enalapril Folic Acid Tablets 10.8mg Combined With amlodipine 5 or 10mg

Enalapril Folic Acid Tablets Combined With amlodipine

Enalapril Folic Acid Tablets 10.8mg Combined With hydrochlorothiazide 12.5 or 25mg

Enalapril Folic Acid Tablets Combined With hydrochlorothiazide

Eligibility Criteria

Age40 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • years old (inclusive);
  • \. Plasma (or serum) Hcy 10 mol/L;
  • \. Enalapril folic acid tablet 10.8 mg/day alone is not up to standard;
  • \. In the case of women of reproductive age, agree to use a reliable method of contraception during the trial;
  • \. Participate voluntarily and sign the informed consent;

You may not qualify if:

  • \. Previous stroke with definite diagnosis;
  • \. Patients with previous well-diagnosed myocardial infarction;
  • \. The presence of well-diagnosed heart failure;
  • \. Postoperative revascularization;
  • DBP \>=110 mmHg or SBP \>=180 mmHg;
  • \. Confirmed secondary hypertension;
  • \. Severe physical and systemic disease, which is estimated to be unable to complete the follow-up;
  • \. People with known congenital or acquired organic heart disease;
  • \. People who have had obvious intolerable adverse reactions to ACEI drugs in the past;
  • \. Have contraindications to ACEI drugs (including renal failure) or are allergic to the drugs used in the study or other ingredients in the drugs;
  • \. According to the researchers, there are contraindications to the use of folic acid;
  • \. Pregnant and lactating women;
  • \. If there are other obvious laboratory tests, abnormal physical signs and clinical diseases, it is not suitable to participate in the study according to the researcher's judgment;
  • \. Unwilling to participate in the trial, unwilling or unable to change the existing medication regimen;
  • \. Long-term use of folic acid or health medicines containing folic acid;
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Second affiliated Hospital Zhejiang University School of Medicine

Hangzhou, Zhejiang, 310009, China

Location

MeSH Terms

Conditions

Hypertension

Interventions

AmlodipineHydrochlorothiazide

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

DihydropyridinesPyridinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsChlorothiazideBenzothiadiazinesSulfonamidesSulfonesSulfur CompoundsOrganic ChemicalsThiazidesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Study Officials

  • Jian-an Wang

    Second Affiliated Hospital of Zhejiang University, School of Medicine

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 20, 2021

First Posted

July 7, 2021

Study Start

July 1, 2014

Primary Completion

July 31, 2019

Study Completion

July 1, 2020

Last Updated

July 23, 2021

Record last verified: 2021-06

Locations