Cardiovascular Effects of Salvia Miltiorrhiza Extract (Danshen)

May 23, 2012 updated by: Radboud University Medical Center

A Double Blind, Randomized Placebo-controlled Cross-over Study on the Cardiovascular Effects of Salvia Miltiorrhiza Extract (Danshen) in Patients With Hypertension and Hyperlipidemia.

Rationale: Extracts of the plant Salvia miltiorrhiza (Danshen) have been used as traditional Chinese medicine in the treatment of cardiovascular diseases, such as angina pectoris and myocardial infarction. Several preclinical studies point towards promising effects of Danshen on risk factors of atherosclerotic cardiovascular diseases, such as hyperlipidemia and hypertension.

Objective: Our primary objective is to determine the effect of Salvia miltiorrhiza extract (Danshen) on hyperlipidemia. Secondary objective is to investigate the effect of Danshen on hypertension. Further objectives are to determine its effect on endothelial function, oxidative stress, inflammation, hemostasis and hemorheology, and on insulin sensitivity.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
20

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Netherlands
      • Nijmegen, Netherlands, 6500 HB
        • Recruiting
        • Radboud University Nijmegen Medical Centre
        • Contact:
        • Contact:
        • Principal Investigator:
          • Gerard Rongen, MD, PhD, Professor
        • Sub-Investigator:
          • Cees J. Tack, MD, PhD, Prof

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

40 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age: 40-70

  • Women:

    • postmenopausal, or
    • use of contraceptive pill

  • Hyperlipidemia:

    • elevated level of triglycerides: > 1.7 mmol/L, or
    • elevated level of LDL-cholesterol: > 3.5 mmol/L

  • Hypertension:

    • systolic pressure > 140 mm Hg, or
    • diastolic pressure > 90 mm Hg
  • Signed informed consent

Exclusion Criteria:

  • Alcohol or drug abuse
  • History of cardiovascular disease (myocard infarct, angina pectoris, CVA)
  • Diabetes mellitus, when treated with insulin
  • Pregnancy

  • Hyperlipidemia which needs conventional treatment

    • elevated level of triglycerides: > 8 mmol/L
    • elevated level of LDL-cholesterol: > 5 mmol/L

  • Hypertension which needs conventional treatment:

    • systolic pressure > 180 mm Hg
    • diastolic pressure > 110 mm Hg
  • Clinically significant liver disease (3 times the upper normal limit of ALAT,ASAT)
  • Clinically significant anemia (male Hb < 6,9 mmol/L, female < 6,25 mmol/L)
  • Renal disease defined as MDRD < 60 ml/min/1.73m2
  • Participation to any drug-investigation during the previous 90 days
  • Use of any herbal product during the previous 30 days
  • Concomitant (chronic) use of:

Medicinal products:

  • ACE-inhibitors, including a.o. captopril, enalapril, ramipril
  • AT1-antagonists, including a.o. losartan, valsartan, irbesartan
  • Statins, including a.o. simvastatin, rosuvastatin
  • Anticoagulant drugs, including a.o. aspirin
  • Calciumantagonists (including a.o. amlodipine, nifedipine, verapamil)
  • Use of more than 1 antihypertensive drug
  • High-dose antihypertensive medication (above defined daily dose)
  • Drugs which are exclusively metabolised by CYP3A4 (Flockhart DA; P450 drug interaction table, including a.o. erythromycin, midazolam, cyclosporine, HIV antivirals)

Food products:

  • (Antioxidant) vitamin supplements
  • Other herbs, including a.o. St John's wort
  • Grapefruit juice

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Salvia miltiorrhiza extract (Danshen)
p.o. Salvia miltiorrhiza extract, 1.5 g twice daily for four consecutive weeks
Dietary supplement: Salvia miltiorrhiza extract
3 capsules of 500 mg Salvia miltiorrhiza extract, twice daily for four consecutive weeks
Other Names:
  • Danshen
Placebo Comparator: placebo
p.o. placebo, twice daily
Dietary supplement: Placebo
3 placebo capsules, twice daily for four consecutive weeks

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Hyperlipidemia
Time Frame: after 4 weeks of treatment with Danshen
Blood tests: lipids, in particular LDL-cholesterol.
after 4 weeks of treatment with Danshen

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Hypertension
Time Frame: after 4 weeks of treatment with Danshen
after 4 weeks of treatment with Danshen
Endothelial function
Time Frame: after 4 weeks of treatment with Danshen
after 4 weeks of treatment with Danshen
Plasma markers of oxidative stress
Time Frame: after 4 weeks of treatment with Danshen
after 4 weeks of treatment with Danshen
Vascular inflammation and inflammatory activation of adipose tissue
Time Frame: after 4 weeks of treatment with danshen
after 4 weeks of treatment with danshen
Hemostasis and hemorheological parameters
Time Frame: after 4 weeks of treatment with Danshen
after 4 weeks of treatment with Danshen
Insulin sensitivity
Time Frame: after 4 weeks of treatment with Danshen
after 4 weeks of treatment with Danshen

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Radboud University Medical Center

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Gerard Rongen, MD, PhD, Professor, Radboud University Medical Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 1, 2012

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2012

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 1, 2013

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 23, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 26, 2012

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 27, 2012

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 24, 2012

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 23, 2012

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2012

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • QPHT-35

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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