NCT01848873

Brief Summary

To evaluate the efficacy of Amlodipine-folic Acid Tablets on reduction of blood pressure and plasma homocystein.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
756

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Jan 2013

Shorter than P25 for phase_2

Geographic Reach
1 country

16 active sites

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2013

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

May 4, 2013

Completed
4 days until next milestone

First Posted

Study publicly available on registry

May 8, 2013

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2013

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2013

Completed
Last Updated

May 8, 2013

Status Verified

May 1, 2013

Enrollment Period

7 months

First QC Date

May 4, 2013

Last Update Submit

May 7, 2013

Conditions

Keywords

HyperhomocysteinemiaAmlodipine-folic acid tabletsHypertensionMTHFR C677T

Outcome Measures

Primary Outcomes (1)

  • Combined effective rate of blood pressure and plasma homocysteine reduction

    Blood pressure was examined at baseline and every 2 weeks for a total period of 8 weeks. Blood homocysteine concentrations were measured at baseline and at 4 and 8 weeks of the trial.

Secondary Outcomes (1)

  • Blood pressure reduction or plasma homocysteine reduction

    Blood pressure was examined at baseline and every two weeks for a total period of 8 weeks. Blood homocysteine concentrations was examined at baseline and at 4 and 8 weeks of the trial.

Other Outcomes (1)

  • 24-hour ambulatory blood pressure

    24-hour ambulatory blood pressure were examined at baseline and at 8 weeks of the trial in 96 participants.

Study Arms (3)

amlodipine-FA tablet, low dose group

EXPERIMENTAL

5mg amlodipine combined with 0.4 mg of folic acid (FA),once daily for 8 weeks.

Drug: amlodipine-FA tablet, low dose group

amlodipine-FA tablet ,high dose group

EXPERIMENTAL

5mg amlodipine combined with 0.8 mg of folic acid (FA), once daily for 8 weeks.

Drug: amlodipine-FA tablet ,high dose group

amolodipine

ACTIVE COMPARATOR

5 mg amlodipine, once daily for 8 weeks.

Drug: Amlodipine

Interventions

amlodipine 5mg daily

Also known as: control
amolodipine

5mg amlodipine combined with 0.4 mg of folic acid, daily.

Also known as: low dose
amlodipine-FA tablet, low dose group

amlodipine 5mg and folic acid 0.8mg daily

Also known as: high dose
amlodipine-FA tablet ,high dose group

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Aged 18-75 years;
  • Seated systolic blood pressure (SBP) between 140 mmHg and 180 mmHg and/or seated diastolic blood pressure between 90 mmHg and 110 mmHg;
  • Plasma homocysteine ≥10umol/L;
  • Signed the written informed consent.

You may not qualify if:

  • Pregnant women or women within lactation period;
  • Hypersensitive to calcium channel blocker (CCB) or folic acid;
  • Easily hypersensitiveness
  • Diagnosed secondum hypertension or skeptical secondum hypertension;
  • Severe hypertension (sedentary systolic blood pressure≥180mmHg and/or sedentary diastolic blood pressure≥110mmHg)
  • Severe diseases:
  • Cardiovascular system:
  • Diagnosed cardia insufficiency (NYHAⅢ level and higher); Hypertrophic obstructive cardiomyopathy (HOCM);Clinical significantly valvular disease of the heart (VDH);Acute coronary syndrome or coronary artery interventional therapy or coronary artery bypass graft within three months; Severe arrhythmia such as atrial flutter, atrial fibrillation, atrioventricular block above Ⅱ level, et al;
  • Alimentary system:
  • Active virus hepatitis; Any of alanine aminotransferase (ALT), aspartate aminotransferase (AST), galactosylhydroxylysyl glucosyltransferase (GGT), alkaline phosphatase (ALP), total bilirubin (TBIL), direct bilirubin (DB) was above 2 times of it's normal value upper limit, albumin (ALB) ≤30g/L;Stomach bulk resect and gastrojejunostomy, stomach intestine malabsorption;
  • Urinary system:
  • Serum creatinine≥200μmol/L ; Diagnosed stenosis of renal artery, solitary kidney, renal transplantation;
  • Endocrine system:
  • Type 1 diabetes mellitus or uncontrolled type 2 diabetes mellitus (fasting glucose≥11.1mmol/L); Diagnosed and uncontrolled hyperthyrosis;
  • Respiratory system:
  • +8 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (16)

The First Affiliated Hospital of Anhui Medical University

Hefei, Anhui, 230022, China

NOT YET RECRUITING

Anzhen Hospital,Capital Medical University

Beijing, Beijing Municipality, 100029, China

RECRUITING

Peking University First Hospital

Beijing, Beijing Municipality, 100036, China

RECRUITING

Chinese PLA General Hospital

Beijing, Beijing Municipality, 100853, China

RECRUITING

First Affiliated Hospital of Fujian Medical University

Fuzhou, Fujian, 350005, China

NOT YET RECRUITING

Guangdong General Hospital

Guangzhou, Guangdong, 510030, China

NOT YET RECRUITING

First Affiliated Hospital of Harbin Medical University

Haibin, Heilongjiang, 150001, China

NOT YET RECRUITING

Union Hospital, Tongji Medical College,Huazhong University of Science and Technology

Wuhan, Hubei, 430022, China

NOT YET RECRUITING

The Affiliated Hospital of Xuzhou Medical College

Xuzhou, Jiangsu, 221006, China

RECRUITING

The Second Affiliated Hospital Of Nanchang University

Nanchang, Jiangxi, 330006, China

NOT YET RECRUITING

First Affiliated Hospital of China Medical University

Shenyang, Liaoning, 110002, China

NOT YET RECRUITING

Ruijin Hospital, Shanghai Jiaotong University School of Medicine

Shanghai, Shanghai Municipality, 200025, China

NOT YET RECRUITING

Zhongshan Hospital Fudan University

Shanghai, Shanghai Municipality, 200032, China

NOT YET RECRUITING

First Affiliated Hospital of the School of Medicine, Xi'an Jiaotong University

Xi’an, Shanxi, 710061, China

NOT YET RECRUITING

West China School of Medicine, West China Hospital ,Sichuan University

Chengdu, Sichuan, 610041, China

NOT YET RECRUITING

Second Affiliated Hospital, School of Medicine, Zhejiang University

Hangzhou, Zhejiang, 310009, China

NOT YET RECRUITING

MeSH Terms

Conditions

Essential HypertensionHyperhomocysteinemiaHypertension

Interventions

AmlodipinePopulation GroupsContraceptives, Oral

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular DiseasesAmino Acid Metabolism, Inborn ErrorsMetabolism, Inborn ErrorsGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesMalabsorption SyndromesMetabolic DiseasesNutritional and Metabolic DiseasesVitamin B DeficiencyAvitaminosisDeficiency DiseasesMalnutritionNutrition Disorders

Intervention Hierarchy (Ancestors)

DihydropyridinesPyridinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsDemographyPopulation CharacteristicsContraceptive Agents, FemaleContraceptive AgentsReproductive Control AgentsPhysiological Effects of DrugsPharmacologic ActionsChemical Actions and UsesTherapeutic Uses

Study Officials

  • Yong Huo, MD

    Peking University First Hospital, Beijing, CHINA

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 4, 2013

First Posted

May 8, 2013

Study Start

January 1, 2013

Primary Completion

August 1, 2013

Study Completion

August 1, 2013

Last Updated

May 8, 2013

Record last verified: 2013-05

Locations