Coronary DiseasePhase 4VENUSNCT01200056
Virtual Histology Findings and Effects of Varying Doses of Atorvastatin Treatment
A Phase 4 study testing Atorvastatin 10mg versus 40mg. in people with Coronary Disease and Ultrasonography, Interventional, run by Prof. Stephen Lee at 1 site in China.
Trial summary
While statin treatment may induce plaque regression, the effect of statin on plaque composition with varying doses is unknown. This study assessed such effects by volumetric virtual histology intravascular ultrasound (VH-IVUS). Read more about this study
- Who is it for?
- Ages 18 to 85 years
- Conditions the study is for
- Coronary Disease, Ultrasonography, Interventional, Hydroxymethylglutaryl-CoA Reductase Inhibitors
- What is being tested?
- Atorvastatin 10mg versus 40mg.
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 40 participants
- Where
- 1 siteChina
- Study dates
- Aug 2007to Jun 2010
- Phase
- Phase 4
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 85 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patient aged 18 to 85 (not pregnant) requiring percutaneous intervention to coronary stenosis.
- Statin naive patient.
- No history of myocardial infarction. Angina free for at least 8 weeks.
Who cannot join
- Any history of previous statin treatment and myocardial infarction
- Current acute coronary syndrome or in cardiogenic shock
- Surgical bypass candidate
- Chronic total occlusion and very tortuous calcified arteries precluding safe IVUS examination.
- Patient refused to give written informed consent.
Trial locations and contacts
1 site in 1 country.
China1 site
Department of Medicine, the University of Hong Kong, Queen Mary Hospital, Hospital Authority
Hong Kong SAR, Hong Kong
About this study
Official title: A Prospective, Double-blinded, Randomised Study to Evaluate the Effects of Different Doses of Statin Treatment on Plaque Volume and Composition in Coronary Disease Determined by Virtual Histology Using Intravascular Ultrasound
While statin treatment may induce plaque regression, the effect of statin on plaque composition with varying doses is unknown. This study assessed such effects by volumetric virtual histology intravascular ultrasound (VH-IVUS).
In this prospective, randomized, double-blinded pilot study, statin-naïve patients with stable angina requiring percutaneous coronary intervention (PCI) were randomized to receive 6 months of either atorvastatin 10mg or 40 mg daily. VH-IVUS was performed in all non-PCI lesions at baseline and 6 months; all analyses were performed by core laboratory.
Read the detailed description
Statin therapy, especially at intensive doses, is beneficial in atherosclerotic coronary disease. Detecting subtle plaque regression after statin therapy is difficult by coronary angiogram; intravascular ultrasound (IVUS) is a far better method. Volumetric IVUS has been used in statin trials to evaluate plaque regression. Intensive statin therapy in the REVERSAL Trial and ASTEROID Trial appeared to achieve better regression outcomes. Stable fibrous plaque is likely to be responsible for stable ischemia, while unstable plaque (large lipid core, calcified nodule and necrotic core), thin-cap fibroatheroma, plaque erosion and plaque rupture may be responsible for acute coronary syndrome (ACS). In vivo tissue characterization of plaque composition is therefore important, yet in this regard grayscale IVUS is insufficient. The development of Virtual Histology (VH) utilizing IVUS generated radiofrequency backscattering signals to virtually separate plaque composition into 4 components corresponding to histopathology has made possible in vivo assessment of plaque composition and stability. We believed plaque regression and VH-IVUS plaque modification with statin therapy could be statin dose dependent, and may affect clinical outcomes. This study was designed to prove our hypothesis, utilizing VH-IVUS.
This study is the first prospective, randomised, double-blinded pilot study designed to investigate the varying statin dose effects on plaque regression and VH composition modulation. For ethical reasons, a placebo arm was not designed. Based on available data, clinically realistic doses of atorvastatin 10mg (low dose) and 40mg (moderate dose) were chosen. Only statin-naïve patients without previous history of myocardial infarction (MI) would be selected, aiming to show the "pure" effects of varying doses of statin and to better reveal the subtle differences in the changes.
- Conditions
- Coronary Disease, Ultrasonography, Interventional, Hydroxymethylglutaryl-CoA Reductase Inhibitors
- Being tested
- Atorvastatin 10mg versus 40mg.
- Keywords
- Volumetric virtual histology intravascular ultrasound., Statin-naive patient., Varying doses atorvastatin., Clinical outcomes.
- Medical subject headings
- Coronary Disease
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Atorvastatin 10mg versus 40mg.Drug
Also called Lipitor 10mg versus 40mg daily for 6 months.
2 arms comparing atorvastatin 10mg daily for 6 months to atorvastatin 40mg daily for 6 months. The primary endpoint would be the 6 months VH-IVUS findings and clinical outcomes.
| Study group | Role | What they receive |
|---|---|---|
| Atorvastatin 10mg low dose | Active comparator | Atorvastatin 10mg daily for 6 months and compared to atorvastatin 40mg daily in the other arm. The primary endpoint of 6 months VH-IVUS findings and clinical outcomes would be monitored and compared. Receives: Drug: Atorvastatin 10mg versus 40mg. |
| Atorvastatin 40mg moderate dose | Active comparator | Atorvastatin 40mg daily for 6 months and compared to atorvastatin 10mg daily in the other arm. The primary endpoint of 6 months VH-IVUS findings and clinical outcomes would be monitored and compared. Receives: Drug: Atorvastatin 10mg versus 40mg. |
What is being measured
The primary outcome is the main question the study is designed to answer.
The primary endpoint would be the 6-month angiographic and VH-IVUS restudy findings.
Our hypothesis was plaque regression and virtual histology intravascular ultrasound (VH-IVUS) plaque modification with statin therapy could be statin dose dependent, and may affect clinical outcomes. 2 clinically realistic doses of atorvastatin 10mg and 40mg were chosen in statin-naïve patients without previous myocardial infarction. The primary endpoint of this study would therefore be the 6 months angiographic and IVUS follow-up, looking at the volumetric gray-scale IVUS and VH-IVUS findings at 6 months for the whole cohort as well as the differences between the 2 groups.
Measured: 6 months
Secondary outcomes (1)
The secondary endpoint would be the occurrence of any major adverse cardiac events at 6 months (including any death, myocardial infarction or need for revascularization) as routinely monitored after all percutaneous interventional procedures.
As described in the "Title" above.
Measured: Throughout the 6 months study period.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Sep 2010 (estimated)
- Study startAug 2007
- Primary completionNov 2009
- Study completionJun 2010
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (31)Papers the sponsor has linked to this study.
- Other trials for Coronary DiseaseStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 40 participants (actual)
Sponsor and investigators
- Lead sponsor
- Prof. Stephen Lee
- Sponsor type
- University, hospital or other
- Collaborators
- Queen Mary Hospital, Hong Kong, Pfizer
- Responsible party
- Sponsor-investigator, Prof. Stephen Lee, The University of Hong Kong
- Investigators
- Prof. Stephen WL LEE, MD FRCP FACC, Principal investigator, Department of Medicine, the University of Hong Kong, Queen Mary Hospital, Hospital Authority
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01200056
- Sponsor's protocol ID
- UW 07-266 (IRB HKU)
- Other IDs
- HKCTR-517
- Acronym
- VENUS
- Status last verified
- Feb 2013
- First submitted
- 9 Sep 2010
- Last updated
- 28 Feb 2013
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults. Executive Summary of The Third Report of The National Cholesterol Education Program (NCEP) Expert Panel on Detection, Evaluation, And Treatment of High Blood Cholesterol In Adults (Adult Treatment Panel III). JAMA. 2001 May 16;285(19):2486-97. doi: 10.1001/jama.285.19.2486. No abstract available.
PubMed 11368702De Backer G, Ambrosioni E, Borch-Johnsen K, Brotons C, Cifkova R, Dallongeville J, Ebrahim S, Faergeman O, Graham I, Mancia G, Manger Cats V, Orth-Gomer K, Perk J, Pyorala K, Rodicio JL, Sans S, Sansoy V, Sechtem U, Silber S, Thomsen T, Wood D; Third Joint Task Force of European and Other Societies on Cardiovascular Disease Prevention in Clinical Practice. European guidelines on cardiovascular disease prevention in clinical practice. Third Joint Task Force of European and Other Societies on Cardiovascular Disease Prevention in Clinical Practice. Eur Heart J. 2003 Sep;24(17):1601-10. doi: 10.1016/s0195-668x(03)00347-6. No abstract available.
PubMed 12964575Heart Protection Study Collaborative Group. MRC/BHF Heart Protection Study of cholesterol lowering with simvastatin in 20,536 high-risk individuals: a randomised placebo-controlled trial. Lancet. 2002 Jul 6;360(9326):7-22. doi: 10.1016/S0140-6736(02)09327-3.
PubMed 12114036Grundy SM, Cleeman JI, Merz CN, Brewer HB Jr, Clark LT, Hunninghake DB, Pasternak RC, Smith SC Jr, Stone NJ; National Heart, Lung, and Blood Institute; American College of Cardiology Foundation; American Heart Association. Implications of recent clinical trials for the National Cholesterol Education Program Adult Treatment Panel III guidelines. Circulation. 2004 Jul 13;110(2):227-39. doi: 10.1161/01.CIR.0000133317.49796.0E.
PubMed 15249516Schwartz GG, Olsson AG, Ezekowitz MD, Ganz P, Oliver MF, Waters D, Zeiher A, Chaitman BR, Leslie S, Stern T; Myocardial Ischemia Reduction with Aggressive Cholesterol Lowering (MIRACL) Study Investigators. Effects of atorvastatin on early recurrent ischemic events in acute coronary syndromes: the MIRACL study: a randomized controlled trial. JAMA. 2001 Apr 4;285(13):1711-8. doi: 10.1001/jama.285.13.1711.
PubMed 11277825Koren MJ, Hunninghake DB; ALLIANCE Investigators. Clinical outcomes in managed-care patients with coronary heart disease treated aggressively in lipid-lowering disease management clinics: the alliance study. J Am Coll Cardiol. 2004 Nov 2;44(9):1772-9. doi: 10.1016/j.jacc.2004.07.053.
PubMed 15519006LaRosa JC, Grundy SM, Waters DD, Shear C, Barter P, Fruchart JC, Gotto AM, Greten H, Kastelein JJ, Shepherd J, Wenger NK; Treating to New Targets (TNT) Investigators. Intensive lipid lowering with atorvastatin in patients with stable coronary disease. N Engl J Med. 2005 Apr 7;352(14):1425-35. doi: 10.1056/NEJMoa050461. Epub 2005 Mar 8.
PubMed 15755765Cannon CP, Braunwald E, McCabe CH, Rader DJ, Rouleau JL, Belder R, Joyal SV, Hill KA, Pfeffer MA, Skene AM; Pravastatin or Atorvastatin Evaluation and Infection Therapy-Thrombolysis in Myocardial Infarction 22 Investigators. Intensive versus moderate lipid lowering with statins after acute coronary syndromes. N Engl J Med. 2004 Apr 8;350(15):1495-504. doi: 10.1056/NEJMoa040583. Epub 2004 Mar 8.
PubMed 15007110Brown G, Albers JJ, Fisher LD, Schaefer SM, Lin JT, Kaplan C, Zhao XQ, Bisson BD, Fitzpatrick VF, Dodge HT. Regression of coronary artery disease as a result of intensive lipid-lowering therapy in men with high levels of apolipoprotein B. N Engl J Med. 1990 Nov 8;323(19):1289-98. doi: 10.1056/NEJM199011083231901.
PubMed 2215615Hausmann D, Erbel R, Alibelli-Chemarin MJ, Boksch W, Caracciolo E, Cohn JM, Culp SC, Daniel WG, De Scheerder I, DiMario C, et al. The safety of intracoronary ultrasound. A multicenter survey of 2207 examinations. Circulation. 1995 Feb 1;91(3):623-30. doi: 10.1161/01.cir.91.3.623.
PubMed 7828285Potkin BN, Bartorelli AL, Gessert JM, Neville RF, Almagor Y, Roberts WC, Leon MB. Coronary artery imaging with intravascular high-frequency ultrasound. Circulation. 1990 May;81(5):1575-85. doi: 10.1161/01.cir.81.5.1575.
PubMed 2184946Tobis JM, Mallery J, Mahon D, Lehmann K, Zalesky P, Griffith J, Gessert J, Moriuchi M, McRae M, Dwyer ML, et al. Intravascular ultrasound imaging of human coronary arteries in vivo. Analysis of tissue characterizations with comparison to in vitro histological specimens. Circulation. 1991 Mar;83(3):913-26. doi: 10.1161/01.cir.83.3.913.
PubMed 1999040Mintz GS, Nissen SE, Anderson WD, Bailey SR, Erbel R, Fitzgerald PJ, Pinto FJ, Rosenfield K, Siegel RJ, Tuzcu EM, Yock PG. American College of Cardiology Clinical Expert Consensus Document on Standards for Acquisition, Measurement and Reporting of Intravascular Ultrasound Studies (IVUS). A report of the American College of Cardiology Task Force on Clinical Expert Consensus Documents. J Am Coll Cardiol. 2001 Apr;37(5):1478-92. doi: 10.1016/s0735-1097(01)01175-5. No abstract available.
PubMed 11300468Mintz GS, Painter JA, Pichard AD, Kent KM, Satler LF, Popma JJ, Chuang YC, Bucher TA, Sokolowicz LE, Leon MB. Atherosclerosis in angiographically "normal" coronary artery reference segments: an intravascular ultrasound study with clinical correlations. J Am Coll Cardiol. 1995 Jun;25(7):1479-85. doi: 10.1016/0735-1097(95)00088-l.
PubMed 7759694Nissen SE, Tuzcu EM, Schoenhagen P, Brown BG, Ganz P, Vogel RA, Crowe T, Howard G, Cooper CJ, Brodie B, Grines CL, DeMaria AN; REVERSAL Investigators. Effect of intensive compared with moderate lipid-lowering therapy on progression of coronary atherosclerosis: a randomized controlled trial. JAMA. 2004 Mar 3;291(9):1071-80. doi: 10.1001/jama.291.9.1071.
PubMed 14996776
Study at a glance
From the registry record, last updated by the sponsor on 28 Feb 2013. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Prospective, Double-blinded, Randomised Study to Evaluate the Effects of Different Doses of Statin Treatment on Plaque Volume and Composition in Coronary Disease Determined by Virtual Histology Using Intravascular Ultrasound
- ClinicalTrials.gov ID
- NCT01200056
- Acronym / sponsor ID
- VENUS / UW 07-266 (IRB HKU)
- Conditions
- Coronary Disease, Ultrasonography, Interventional, Hydroxymethylglutaryl-CoA Reductase Inhibitors
- Keywords
- Volumetric virtual histology intravascular ultrasound., Statin-naive patient., Varying doses atorvastatin., Clinical outcomes.
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 40 participants (actual)
- Lead sponsor
- Prof. Stephen LeeUniversity, hospital or other
- Collaborators
- Queen Mary Hospital, Hong Kong, Pfizer
- Study start
- Aug 2007
- Primary completion
- Nov 2009 (actual)
- Study completion
- Jun 2010 (actual)
- First posted
- 13 Sep 2010 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
While statin treatment may induce plaque regression, the effect of statin on plaque composition with varying doses is unknown. This study assessed such effects by volumetric virtual histology intravascular ultrasound (VH-IVUS).
In this prospective, randomized, double-blinded pilot study, statin-naïve patients with stable angina requiring percutaneous coronary intervention (PCI) were randomized to receive 6 months of either atorvastatin 10mg or 40 mg daily. VH-IVUS was performed in all non-PCI lesions at baseline and 6 months; all analyses were performed by core laboratory.
Detailed description
Statin therapy, especially at intensive doses, is beneficial in atherosclerotic coronary disease. Detecting subtle plaque regression after statin therapy is difficult by coronary angiogram; intravascular ultrasound (IVUS) is a far better method. Volumetric IVUS has been used in statin trials to evaluate plaque regression. Intensive statin therapy in the REVERSAL Trial and ASTEROID Trial appeared to achieve better regression outcomes. Stable fibrous plaque is likely to be responsible for stable ischemia, while unstable plaque (large lipid core, calcified nodule and necrotic core), thin-cap fibroatheroma, plaque erosion and plaque rupture may be responsible for acute coronary syndrome (ACS). In vivo tissue characterization of plaque composition is therefore important, yet in this regard grayscale IVUS is insufficient. The development of Virtual Histology (VH) utilizing IVUS generated radiofrequency backscattering signals to virtually separate plaque composition into 4 components corresponding to histopathology has made possible in vivo assessment of plaque composition and stability. We believed plaque regression and VH-IVUS plaque modification with statin therapy could be statin dose dependent, and may affect clinical outcomes. This study was designed to prove our hypothesis, utilizing VH-IVUS.
This study is the first prospective, randomised, double-blinded pilot study designed to investigate the varying statin dose effects on plaque regression and VH composition modulation. For ethical reasons, a placebo arm was not designed. Based on available data, clinically realistic doses of atorvastatin 10mg (low dose) and 40mg (moderate dose) were chosen. Only statin-naïve patients without previous history of myocardial infarction (MI) would be selected, aiming to show the "pure" effects of varying doses of statin and to better reveal the subtle differences in the changes.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Atorvastatin 10mg low dose | Active comparator | Drug: Atorvastatin 10mg versus 40mg.Atorvastatin 10mg daily for 6 months and compared to atorvastatin 40mg daily in the other arm. The primary endpoint of 6 months VH-IVUS findings and clinical outcomes would be monitored and compared. |
| Atorvastatin 40mg moderate dose | Active comparator | Drug: Atorvastatin 10mg versus 40mg.Atorvastatin 40mg daily for 6 months and compared to atorvastatin 10mg daily in the other arm. The primary endpoint of 6 months VH-IVUS findings and clinical outcomes would be monitored and compared. |
Who may qualify
- Ages
- 18 to 85 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Patient aged 18 to 85 (not pregnant) requiring percutaneous intervention to coronary stenosis.
- Statin naive patient.
- No history of myocardial infarction. Angina free for at least 8 weeks.
Key exclusion criteria (5 listed)
- Any history of previous statin treatment and myocardial infarction
- Current acute coronary syndrome or in cardiogenic shock
- Surgical bypass candidate
- Chronic total occlusion and very tortuous calcified arteries precluding safe IVUS examination.
- Patient refused to give written informed consent.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Atorvastatin 10mg versus 40mg.Also: Lipitor 10mg versus 40mg daily for 6 months.2 arms comparing atorvastatin 10mg daily for 6 months to atorvastatin 40mg daily for 6 months. The primary endpoint would be the 6 months VH-IVUS findings and clinical outcomes. | Drug | Atorvastatin 10mg low dose, Atorvastatin 40mg moderate dose |
Primary outcome
The primary endpoint would be the 6-month angiographic and VH-IVUS restudy findings.
Time frame: 6 months
Our hypothesis was plaque regression and virtual histology intravascular ultrasound (VH-IVUS) plaque modification with statin therapy could be statin dose dependent, and may affect clinical outcomes. 2 clinically realistic doses of atorvastatin 10mg and 40mg were chosen in statin-naïve patients without previous myocardial infarction. The primary endpoint of this study would therefore be the 6 months angiographic and IVUS follow-up, looking at the volumetric gray-scale IVUS and VH-IVUS findings at 6 months for the whole cohort as well as the differences between the 2 groups.
1 secondary outcome
The secondary endpoint would be the occurrence of any major adverse cardiac events at 6 months (including any death, myocardial infarction or need for revascularization) as routinely monitored after all percutaneous interventional procedures.
Time frame: Throughout the 6 months study period.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Feb 2013.
- Background: PubMed 11368702Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults. Executive Summary of The Third Report of The National Cholesterol Education Program (NCEP) Expert Panel on Detection, Evaluation, And Treatment of High Blood Cholesterol In Adults (Adult Treatment Panel III). JAMA. 2001 May 16;285(19):2486-97. doi: 10.1001/jama.285.19.2486. No abstract available.
- Background: PubMed 12964575De Backer G, Ambrosioni E, Borch-Johnsen K, Brotons C, Cifkova R, Dallongeville J, Ebrahim S, Faergeman O, Graham I, Mancia G, Manger Cats V, Orth-Gomer K, Perk J, Pyorala K, Rodicio JL, Sans S, Sansoy V, Sechtem U, Silber S, Thomsen T, Wood D; Third Joint Task Force of European and Other Societies on Cardiovascular Disease Prevention in Clinical Practice. European guidelines on cardiovascular disease prevention in clinical practice. Third Joint Task Force of European and Other Societies on Cardiovascular Disease Prevention in Clinical Practice. Eur Heart J. 2003 Sep;24(17):1601-10. doi: 10.1016/s0195-668x(03)00347-6. No abstract available.
- Background: PubMed 12114036Heart Protection Study Collaborative Group. MRC/BHF Heart Protection Study of cholesterol lowering with simvastatin in 20,536 high-risk individuals: a randomised placebo-controlled trial. Lancet. 2002 Jul 6;360(9326):7-22. doi: 10.1016/S0140-6736(02)09327-3.
- Background: PubMed 15249516Grundy SM, Cleeman JI, Merz CN, Brewer HB Jr, Clark LT, Hunninghake DB, Pasternak RC, Smith SC Jr, Stone NJ; National Heart, Lung, and Blood Institute; American College of Cardiology Foundation; American Heart Association. Implications of recent clinical trials for the National Cholesterol Education Program Adult Treatment Panel III guidelines. Circulation. 2004 Jul 13;110(2):227-39. doi: 10.1161/01.CIR.0000133317.49796.0E.
- Background: PubMed 11277825Schwartz GG, Olsson AG, Ezekowitz MD, Ganz P, Oliver MF, Waters D, Zeiher A, Chaitman BR, Leslie S, Stern T; Myocardial Ischemia Reduction with Aggressive Cholesterol Lowering (MIRACL) Study Investigators. Effects of atorvastatin on early recurrent ischemic events in acute coronary syndromes: the MIRACL study: a randomized controlled trial. JAMA. 2001 Apr 4;285(13):1711-8. doi: 10.1001/jama.285.13.1711.
- Background: PubMed 15519006Koren MJ, Hunninghake DB; ALLIANCE Investigators. Clinical outcomes in managed-care patients with coronary heart disease treated aggressively in lipid-lowering disease management clinics: the alliance study. J Am Coll Cardiol. 2004 Nov 2;44(9):1772-9. doi: 10.1016/j.jacc.2004.07.053.
- Background: PubMed 15755765LaRosa JC, Grundy SM, Waters DD, Shear C, Barter P, Fruchart JC, Gotto AM, Greten H, Kastelein JJ, Shepherd J, Wenger NK; Treating to New Targets (TNT) Investigators. Intensive lipid lowering with atorvastatin in patients with stable coronary disease. N Engl J Med. 2005 Apr 7;352(14):1425-35. doi: 10.1056/NEJMoa050461. Epub 2005 Mar 8.
- Background: PubMed 15007110Cannon CP, Braunwald E, McCabe CH, Rader DJ, Rouleau JL, Belder R, Joyal SV, Hill KA, Pfeffer MA, Skene AM; Pravastatin or Atorvastatin Evaluation and Infection Therapy-Thrombolysis in Myocardial Infarction 22 Investigators. Intensive versus moderate lipid lowering with statins after acute coronary syndromes. N Engl J Med. 2004 Apr 8;350(15):1495-504. doi: 10.1056/NEJMoa040583. Epub 2004 Mar 8.
- Background: PubMed 2215615Brown G, Albers JJ, Fisher LD, Schaefer SM, Lin JT, Kaplan C, Zhao XQ, Bisson BD, Fitzpatrick VF, Dodge HT. Regression of coronary artery disease as a result of intensive lipid-lowering therapy in men with high levels of apolipoprotein B. N Engl J Med. 1990 Nov 8;323(19):1289-98. doi: 10.1056/NEJM199011083231901.
- Background: PubMed 7828285Hausmann D, Erbel R, Alibelli-Chemarin MJ, Boksch W, Caracciolo E, Cohn JM, Culp SC, Daniel WG, De Scheerder I, DiMario C, et al. The safety of intracoronary ultrasound. A multicenter survey of 2207 examinations. Circulation. 1995 Feb 1;91(3):623-30. doi: 10.1161/01.cir.91.3.623.
- Background: PubMed 2184946Potkin BN, Bartorelli AL, Gessert JM, Neville RF, Almagor Y, Roberts WC, Leon MB. Coronary artery imaging with intravascular high-frequency ultrasound. Circulation. 1990 May;81(5):1575-85. doi: 10.1161/01.cir.81.5.1575.
- Background: PubMed 1999040Tobis JM, Mallery J, Mahon D, Lehmann K, Zalesky P, Griffith J, Gessert J, Moriuchi M, McRae M, Dwyer ML, et al. Intravascular ultrasound imaging of human coronary arteries in vivo. Analysis of tissue characterizations with comparison to in vitro histological specimens. Circulation. 1991 Mar;83(3):913-26. doi: 10.1161/01.cir.83.3.913.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Prof. Stephen WL LEE, MD FRCP FACC principal investigator
Department of Medicine, the University of Hong Kong, Queen Mary Hospital, Hospital Authority
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Atorvastatin 10mg versus 40mg. in people with Coronary Disease and Ultrasonography, Interventional, run by Prof. Stephen Lee at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 28 Feb 2013. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The primary endpoint would be the 6-month angiographic and VH-IVUS restudy findings. (time frame: 6 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01200056, which also lists 31 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Feb 2013.