Cardiovascular-Protective Effects of Herbal Medicine Danshen-Gegen
NCT ID: NCT01033630
Last Updated: 2009-12-16
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
PHASE2
90 participants
INTERVENTIONAL
2006-01-31
2008-05-31
Brief Summary
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Danshen and Gegen are commonly used in Chinese materia medica as treatment for cardiac symptoms and atherosclerosis-related disorders.
The objective of this study is to test Danshen and Gegen as an cardiovascular-protective adjunctive regimen to prevent high-risk hypertensive cohort from primary atherosclerosis.
Detailed Description
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To evaluate the potential of D\&G in primary atherosclerosis prevention in high risk hypertension. Patients with high risk hypertension associated with left ventricular hypertrophy, diabetes mellitus and renal insufficiency were randomized to receive D\&G herbal capsules (2gm/day), or (1gm/day) or identical placebo capsules in double-blind and parallel fashion for 12 months on top of their anti-hypertensive treatments. Flow-mediated dilation (endothelium-dependent dilation, FMD) and nitroglycerin-induced dilation (endothelium-independent dilation, NTG) of brachial artery, and carotid intima-media thickness (surrogate atherosclerosis marker, IMT) were measured by high resolution B-mode ultrasound.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
TRIPLE
Study Groups
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Placebo
Image-matched placebo of active treatment
Placebo
Image-matched placebo, made with starch.
D&G 1g
Randomly allocated into three groups, D\&G capsule 1g/day
D&G 1g
Danshen consists of the dried root and rhizome of the perennial herb Salvia miltiorrhiza Bge. Gegen is the dried roots of Pueraria lobata (willd.). The combination in the ratio of 7:3 of the raw herbs. Capsule form, Orally taken 1g per Day
D&G 2g
Randomly allocated into three groups, D\&G capsule 2g/day
D&G 2g
Danshen consists of the dried root and rhizome of the perennial herb Salvia miltiorrhiza Bge. Gegen is the dried roots of Pueraria lobata (willd.). The combination in the ratio of 7:3 of the raw herbs. Capsule form, Orally taken 2g per Day
Interventions
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D&G 2g
Danshen consists of the dried root and rhizome of the perennial herb Salvia miltiorrhiza Bge. Gegen is the dried roots of Pueraria lobata (willd.). The combination in the ratio of 7:3 of the raw herbs. Capsule form, Orally taken 2g per Day
D&G 1g
Danshen consists of the dried root and rhizome of the perennial herb Salvia miltiorrhiza Bge. Gegen is the dried roots of Pueraria lobata (willd.). The combination in the ratio of 7:3 of the raw herbs. Capsule form, Orally taken 1g per Day
Placebo
Image-matched placebo, made with starch.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Aged 35-70 years
* With either (i)left ventricular hypertrophy on ECG or echocardiographic criteria, (ii) diabetes mellitus, or (iii) mild renal impairment (plasma creatinine 120-250µmol/l)
Exclusion Criteria
35 Years
70 Years
ALL
No
Sponsors
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Chinese University of Hong Kong
OTHER
Responsible Party
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Department of Medicine and Therapeutics, The Chinese University of Hong Kong
Principal Investigators
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Thomas YK Chan, Prof.
Role: PRINCIPAL_INVESTIGATOR
Department of Medicine & Therapeutics, Prince of Wales hospital
Locations
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Alice Ho Miu Ling Nethersole Hospital
Hong Kong, , Hong Kong
Prince of Wales Hospital
Hong Kong, , Hong Kong
Yan Chai Hospital
Hong Kong, , Hong Kong
Countries
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References
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Bots ML, Hoes AW, Koudstaal PJ, Hofman A, Grobbee DE. Common carotid intima-media thickness and risk of stroke and myocardial infarction: the Rotterdam Study. Circulation. 1997 Sep 2;96(5):1432-7. doi: 10.1161/01.cir.96.5.1432.
O'Leary DH, Polak JF, Kronmal RA, Manolio TA, Burke GL, Wolfson SK Jr. Carotid-artery intima and media thickness as a risk factor for myocardial infarction and stroke in older adults. Cardiovascular Health Study Collaborative Research Group. N Engl J Med. 1999 Jan 7;340(1):14-22. doi: 10.1056/NEJM199901073400103.
Woo KS, Chook P, Raitakari OT, McQuillan B, Feng JZ, Celermajer DS. Westernization of Chinese adults and increased subclinical atherosclerosis. Arterioscler Thromb Vasc Biol. 1999 Oct;19(10):2487-93. doi: 10.1161/01.atv.19.10.2487.
Sieveking DP, Woo KS, Fung KP, Lundman P, Nakhla S, Celermajer DS. Chinese herbs Danshen and Gegen modulate key early atherogenic events in vitro. Int J Cardiol. 2005 Oct 20;105(1):40-5. doi: 10.1016/j.ijcard.2004.10.052.
Other Identifiers
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CRE2005123T
Identifier Type: -
Identifier Source: org_study_id