Coronary DiseasePhase 4NCT00242944
Japan Assessment of Pitavastatin and Atorvastatin in Acute Coronary Syndrome (JAPAN-ACS)
A Phase 4 study testing Pitavastatin and Atorvastatin in people with Coronary Disease and Hypercholesterolemia, run by Kyoto University at 3 sites in Japan.
Trial summary
The purpose of this study is to compare the effects of pitavastatin and atorvastatin on coronary plaque volume in patients with acute coronary syndrome and to clarify the relationship between coronary plaque volume, serum lipids, and inflammation markers in order to determine the significance of intensive lipid… Read more about this study
- Who is it for?
- Ages 20 years and older
- Conditions the study is for
- Coronary Disease, Hypercholesterolemia
- What is being tested?
- Pitavastatin and Atorvastatin
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 307 participants
- Where
- 3 sitesJapan
- Study dates
- Nov 2005to Mar 2008
- 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 20 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients with written consent by their own volition after being provided sufficient explanation for their participation in this clinical trial
- Patients 20 years or older at the time of their consent
- Patients with hypercholesterolemia as defined by any of the following criteria:
- TC >= 220 mg/dL;
- LDL-C >= 140 mg/dL;
- Cholesterol-lowering treatment is necessary in accordance with the investigator's judgement when LDL-C >= 100 mg/dL or TC >= 180 mg/dL.
Show all 9Show fewer
- Patients who have been diagnosed with acute coronary syndrome
- Patients with successful percutaneous coronary intervention (PCI) by intravascular ultrasound (IVUS) guidance
- Patients having coronary plaques (>= 500 µm in thickness or 20% or more in % plaque) at >= 5 mm from the previously treated area in the same branch of coronary artery
Who cannot join
- Patients with bypass graft or in-stent restenosis at the site of PCI
- Patients who had received PCI on the lesion in the past where the evaluation of coronary plaque volume is planned
- Patients who had plaques in a non-culprit site and might receive PCI during the treatment period
- Patients receiving lipid-lowering drugs (statins, fibrates, probucol, nicotinic acid or cholesterol absorption inhibitors)
- Patients with familial hypercholesterolemia
- Patients with cardiogenic shock
Show all 12Show fewer
- Patients receiving cyclosporine
- Patients with any allergy to pitavastatin or atorvastatin
- Patients with hepatobiliary disorders
- Pregnant women, women suspected of being pregnant, or lactating women
- Patients with renal disorders or undergoing dialysis
- Patients who are ineligible in the opinion of the investigator
Trial locations and contacts
3 sites in 1 country.
Japan3 sites
Juntendo University School of Medicine
Bunkyo-ku, Tokyo, 113-8421
Kyoto University Graduate School of Medicine
Kyoto, 606-8507
Yamaguchi University Graduate School of Medicine
Ube, Yamaguchi, 755-8505
About this study
Official title: Japan Assessment of Pitavastatin and Atorvastatin in Acute Coronary Syndrome
The purpose of this study is to compare the effects of pitavastatin and atorvastatin on coronary plaque volume in patients with acute coronary syndrome and to clarify the relationship between coronary plaque volume, serum lipids, and inflammation markers in order to determine the significance of intensive lipid lowering therapy in patients with acute coronary syndrome in Japan.
Read the detailed description
Previous mega trials have demonstrated that lipid lowering therapy with HMG-CoA reductase inhibitors (statins) reduces the incidence of major cardiovascular events by one-third, thus, the benefit of lipid lowering therapy has been substantiated. Such a benefit is significant especially for patients with coronary heart disease (CHD). The third report of the National Cholesterol Education Program Adult Treatment Panel (NCEP ATP-III) has suggested the advantage of more intensive lipid lowering therapy with a goal of reducing LDL-C below 70 mg/dL for such patients categorized as very high risk. In Japan, Japan Atherosclerosis Society (JAS) Guidelines for Diagnosis and Treatment of Atherosclerotic Cardiovascular Diseases 2002 have recommended that an LDL-C goal for patients with coronary heart disease should be below 100 mg/dL. However, there is no satisfactory evidence yet for the need to lower LDL-C level less than the goal prescribed in Japan.
Recently, research on diagnosis of coronary plaque has shown significant advances. The REVERSAL study in patients with a history of CHD, by diagnosis with intravascular ultrasound, suggested that intensive lipid lowering therapy with atorvastatin (80 mg/day) was associated with no growth of plaque (-0.4% compared to baseline), versus therapy with pravastatin (40 mg/day) which showed a slight increase (2.7%) in plaque volume over 18 months. In Japan, the ESTABLISH study, a single center study, indicated that early intensive lipid lowering therapy with atorvastatin (20 mg/day) could induce a significant reduction in plaque volume in patients with acute coronary syndrome. However, this benefit has not been verified in multicenter trials in Japan. Further, no comparative investigation into the effect of various concomitant drugs on coronary plaque has been done.
Pitavastatin is a chemically synthesized statin in Japan which has been marketed since late 2003. Pitavastatin has an LDL-C lowering effect as strong as atorvastatin and also has a superior HDL-C elevating effect; meanwhile, the effect of pitavastatin on coronary plaque has not been reported.
- Conditions
- Coronary Disease, Hypercholesterolemia
- Being tested
- Pitavastatin, Atorvastatin
- Keywords
- Acute coronary syndrome, Hypercholesterolemia, Primary coronary intervention, Hydroxymethylglutaryl-CoA reductase inhibitors, coronary plaque, Angioplasty, Transluminal, Percutaneous Coronary, Ultrasonography, Interventional
- Medical subject headings
- Coronary Disease, Hypercholesterolemia, Acute Coronary Syndrome
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PitavastatinDrug
Pitavastatin 4mg per day
AtorvastatinDrug
Atorvastatin 20mg per day
| Study group | Role | What they receive |
|---|---|---|
| 1 | Active comparator | Pitavastatin Receives: Drug: Pitavastatin |
| 2 | Active comparator | Atorvastatin Receives: Drug: Atorvastatin |
What is being measured
The primary outcome is the main question the study is designed to answer.
plaque volume
Measured: one year
Secondary outcomes (24)
total cholesterol (TC)
Measured: one year
low-density lipoprotein (LDL)-cholesterol (LDL-C)
Measured: one year
high-density lipoprotein (HDL)-cholesterol (HDL-C)
Measured: one year
HDL2-C
Measured: one year
HDL3-C
Measured: one year
remnant like particles-cholesterol (RLP-C)
Measured: one year
small dense LDL-C
Measured: one year
non-HDL-C
Measured: one year
LDL-C/HDL-C
Measured: one year
apolipoprotein AI (apoA-I)
Measured: one year
apoB
Measured: one year
apoE
Measured: one year
apoB/apoA-I
Measured: one year
malondialdehyde-modified LDL (MDA-LDL)
Measured: one year
phospholipids
Measured: one year
lipoprotein(a) [Lp(a)]
Measured: one year
high-sensitivity C-reactive protein (hs-CRP)
Measured: one year
pentraxin 3
Measured: one year
leukocytes
Measured: one year
coronary plaque area at culprit region
Measured: one year
minimal lumen diameter (MLD) and percent (%) stenosis
Measured: one year
major adverse cardiac events (cardiac death, Q or non-Q myocardial infarction and target vessel revascularization)
Measured: one year
number of deaths from any cause
Measured: one year
frequency of adverse drug reactions
Measured: one year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Oct 2005 (estimated)
- Study startNov 2005
- Primary completionOct 2007
- Study completionMar 2008
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (6)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
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 307 participants (actual)
Sponsor and investigators
- Lead sponsor
- Kyoto University
- Sponsor type
- University, hospital or other
- Collaborators
- Yamaguchi University Hospital, Juntendo University
- Responsible party
- Principal investigator, Takeshi Morimoto, Kyoto University
- Investigators
- Masunori Matsuzaki, MD, PhD, Study chair, Professor of Medicine, Department of Cardiovascular Medicine, Yamaguchi University Graduate School of MedicineHiroyuki Daida, MD, Principal investigator, Professor of Medicine, Department of Cardiovascular Medicine, Juntendo University School of MedicineTakeshi Kimura, MD, Principal investigator, Associate Professor of Medicine, Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00242944
- Sponsor's protocol ID
- H17-49
- Status last verified
- Oct 2023
- First submitted
- 20 Oct 2005
- Last updated
- 4 Oct 2023
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Miyauchi K, Kimura T, Morimoto T, Nakagawa Y, Yamagishi M, Ozaki Y, Hiro T, Daida H, Matsuzaki M. Japan assessment of pitavastatin and atorvastatin in acute coronary syndrome (JAPAN-ACS): rationale and design. Circ J. 2006 Dec;70(12):1624-8. doi: 10.1253/circj.70.1624.
PubMed 17127811Hiro T, Kimura T, Morimoto T, Miyauchi K, Nakagawa Y, Yamagishi M, Ozaki Y, Kimura K, Saito S, Yamaguchi T, Daida H, Matsuzaki M; JAPAN-ACS Investigators. Effect of intensive statin therapy on regression of coronary atherosclerosis in patients with acute coronary syndrome: a multicenter randomized trial evaluated by volumetric intravascular ultrasound using pitavastatin versus atorvastatin (JAPAN-ACS [Japan assessment of pitavastatin and atorvastatin in acute coronary syndrome] study). J Am Coll Cardiol. 2009 Jul 21;54(4):293-302. doi: 10.1016/j.jacc.2009.04.033.
PubMed 19608026Fukushima Y, Daida H, Morimoto T, Kasai T, Miyauchi K, Yamagishi S, Takeuchi M, Hiro T, Kimura T, Nakagawa Y, Yamagishi M, Ozaki Y, Matsuzaki M; JAPAN-ACS Investigators. Relationship between advanced glycation end products and plaque progression in patients with acute coronary syndrome: the JAPAN-ACS sub-study. Cardiovasc Diabetol. 2013 Jan 7;12:5. doi: 10.1186/1475-2840-12-5.
PubMed 23289728Takashima H, Ozaki Y, Morimoto T, Kimura T, Hiro T, Miyauchi K, Nakagawa Y, Yamagishi M, Daida H, Mizuno T, Asai K, Kuroda Y, Kosaka T, Kuhara Y, Kurita A, Maeda K, Amano T, Matsuzaki M; JAPAN-ACS Investigators. Clustering of metabolic syndrome components attenuates coronary plaque regression during intensive statin therapy in patients with acute coronary syndrome: the JAPAN-ACS subanalysis study. Circ J. 2012;76(12):2840-7. doi: 10.1253/circj.cj-11-1495. Epub 2012 Sep 7.
PubMed 22972364Ohashi T, Shibata R, Morimoto T, Kanashiro M, Ishii H, Ichimiya S, Hiro T, Miyauchi K, Nakagawa Y, Yamagishi M, Ozaki Y, Kimura T, Daida H, Murohara T, Matsuzaki M. Correlation between circulating adiponectin levels and coronary plaque regression during aggressive lipid-lowering therapy in patients with acute coronary syndrome: subgroup analysis of JAPAN-ACS study. Atherosclerosis. 2010 Sep;212(1):237-42. doi: 10.1016/j.atherosclerosis.2010.05.005. Epub 2010 May 11.
PubMed 20684825Hiro T, Kimura T, Morimoto T, Miyauchi K, Nakagawa Y, Yamagishi M, Ozaki Y, Kimura K, Saito S, Yamaguchi T, Daida H, Matsuzaki M; JAPAN-ACS Investigators. Diabetes mellitus is a major negative determinant of coronary plaque regression during statin therapy in patients with acute coronary syndrome--serial intravascular ultrasound observations from the Japan Assessment of Pitavastatin and Atorvastatin in Acute Coronary Syndrome Trial (the JAPAN-ACS Trial). Circ J. 2010 Jun;74(6):1165-74. doi: 10.1253/circj.cj-09-0766. Epub 2010 May 12.
PubMed 20467151
Study at a glance
From the registry record, last updated by the sponsor on 4 Oct 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Japan Assessment of Pitavastatin and Atorvastatin in Acute Coronary Syndrome
- ClinicalTrials.gov ID
- NCT00242944
- Acronym / sponsor ID
- H17-49
- Conditions
- Coronary Disease, Hypercholesterolemia
- Keywords
- Acute coronary syndrome, Hypercholesterolemia, Primary coronary intervention, Hydroxymethylglutaryl-CoA reductase inhibitors, coronary plaque, Angioplasty, Transluminal, Percutaneous Coronary, Ultrasonography, Interventional
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 307 participants (actual)
- Lead sponsor
- Kyoto UniversityUniversity, hospital or other
- Collaborators
- Yamaguchi University Hospital, Juntendo University
- Study start
- Nov 2005
- Primary completion
- Oct 2007 (actual)
- Study completion
- Mar 2008 (actual)
- First posted
- 21 Oct 2005 (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.
The purpose of this study is to compare the effects of pitavastatin and atorvastatin on coronary plaque volume in patients with acute coronary syndrome and to clarify the relationship between coronary plaque volume, serum lipids, and inflammation markers in order to determine the significance of intensive lipid lowering therapy in patients with acute coronary syndrome in Japan.
Detailed description
Previous mega trials have demonstrated that lipid lowering therapy with HMG-CoA reductase inhibitors (statins) reduces the incidence of major cardiovascular events by one-third, thus, the benefit of lipid lowering therapy has been substantiated. Such a benefit is significant especially for patients with coronary heart disease (CHD). The third report of the National Cholesterol Education Program Adult Treatment Panel (NCEP ATP-III) has suggested the advantage of more intensive lipid lowering therapy with a goal of reducing LDL-C below 70 mg/dL for such patients categorized as very high risk. In Japan, Japan Atherosclerosis Society (JAS) Guidelines for Diagnosis and Treatment of Atherosclerotic Cardiovascular Diseases 2002 have recommended that an LDL-C goal for patients with coronary heart disease should be below 100 mg/dL. However, there is no satisfactory evidence yet for the need to lower LDL-C level less than the goal prescribed in Japan.
Recently, research on diagnosis of coronary plaque has shown significant advances. The REVERSAL study in patients with a history of CHD, by diagnosis with intravascular ultrasound, suggested that intensive lipid lowering therapy with atorvastatin (80 mg/day) was associated with no growth of plaque (-0.4% compared to baseline), versus therapy with pravastatin (40 mg/day) which showed a slight increase (2.7%) in plaque volume over 18 months. In Japan, the ESTABLISH study, a single center study, indicated that early intensive lipid lowering therapy with atorvastatin (20 mg/day) could induce a significant reduction in plaque volume in patients with acute coronary syndrome. However, this benefit has not been verified in multicenter trials in Japan. Further, no comparative investigation into the effect of various concomitant drugs on coronary plaque has been done.
Pitavastatin is a chemically synthesized statin in Japan which has been marketed since late 2003. Pitavastatin has an LDL-C lowering effect as strong as atorvastatin and also has a superior HDL-C elevating effect; meanwhile, the effect of pitavastatin on coronary plaque has not been reported.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| 1 | Active comparator | Drug: PitavastatinPitavastatin |
| 2 | Active comparator | Drug: AtorvastatinAtorvastatin |
Who may qualify
- Ages
- 20 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (9 listed)
- Patients with written consent by their own volition after being provided sufficient explanation for their participation in this clinical trial
- Patients 20 years or older at the time of their consent
- Patients with hypercholesterolemia as defined by any of the following criteria:
- Patients who have been diagnosed with acute coronary syndrome
- Patients with successful percutaneous coronary intervention (PCI) by intravascular ultrasound (IVUS) guidance
Key exclusion criteria (12 listed)
- Patients with bypass graft or in-stent restenosis at the site of PCI
- Patients who had received PCI on the lesion in the past where the evaluation of coronary plaque volume is planned
- Patients who had plaques in a non-culprit site and might receive PCI during the treatment period
- Patients receiving lipid-lowering drugs (statins, fibrates, probucol, nicotinic acid or cholesterol absorption inhibitors)
- Patients with familial hypercholesterolemia
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 |
|---|---|---|
| PitavastatinPitavastatin 4mg per day | Drug | 1 |
| AtorvastatinAtorvastatin 20mg per day | Drug | 2 |
Primary outcome
plaque volume
Time frame: one year
24 secondary outcomes
total cholesterol (TC)
Time frame: one year
low-density lipoprotein (LDL)-cholesterol (LDL-C)
Time frame: one year
high-density lipoprotein (HDL)-cholesterol (HDL-C)
Time frame: one year
HDL2-C
Time frame: one year
HDL3-C
Time frame: one year
remnant like particles-cholesterol (RLP-C)
Time frame: one year
small dense LDL-C
Time frame: one year
non-HDL-C
Time frame: one year
LDL-C/HDL-C
Time frame: one year
apolipoprotein AI (apoA-I)
Time frame: one year
apoB
Time frame: one year
apoE
Time frame: one year
apoB/apoA-I
Time frame: one year
malondialdehyde-modified LDL (MDA-LDL)
Time frame: one year
phospholipids
Time frame: one year
lipoprotein(a) [Lp(a)]
Time frame: one year
high-sensitivity C-reactive protein (hs-CRP)
Time frame: one year
pentraxin 3
Time frame: one year
leukocytes
Time frame: one year
coronary plaque area at culprit region
Time frame: one year
minimal lumen diameter (MLD) and percent (%) stenosis
Time frame: one year
major adverse cardiac events (cardiac death, Q or non-Q myocardial infarction and target vessel revascularization)
Time frame: one year
number of deaths from any cause
Time frame: one year
frequency of adverse drug reactions
Time frame: one year
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 4 Oct 2023.
- Background: PubMed 17127811Miyauchi K, Kimura T, Morimoto T, Nakagawa Y, Yamagishi M, Ozaki Y, Hiro T, Daida H, Matsuzaki M. Japan assessment of pitavastatin and atorvastatin in acute coronary syndrome (JAPAN-ACS): rationale and design. Circ J. 2006 Dec;70(12):1624-8. doi: 10.1253/circj.70.1624.
- Results publication: PubMed 19608026Hiro T, Kimura T, Morimoto T, Miyauchi K, Nakagawa Y, Yamagishi M, Ozaki Y, Kimura K, Saito S, Yamaguchi T, Daida H, Matsuzaki M; JAPAN-ACS Investigators. Effect of intensive statin therapy on regression of coronary atherosclerosis in patients with acute coronary syndrome: a multicenter randomized trial evaluated by volumetric intravascular ultrasound using pitavastatin versus atorvastatin (JAPAN-ACS [Japan assessment of pitavastatin and atorvastatin in acute coronary syndrome] study). J Am Coll Cardiol. 2009 Jul 21;54(4):293-302. doi: 10.1016/j.jacc.2009.04.033.
- Derived from this study: PubMed 23289728Fukushima Y, Daida H, Morimoto T, Kasai T, Miyauchi K, Yamagishi S, Takeuchi M, Hiro T, Kimura T, Nakagawa Y, Yamagishi M, Ozaki Y, Matsuzaki M; JAPAN-ACS Investigators. Relationship between advanced glycation end products and plaque progression in patients with acute coronary syndrome: the JAPAN-ACS sub-study. Cardiovasc Diabetol. 2013 Jan 7;12:5. doi: 10.1186/1475-2840-12-5.
- Derived from this study: PubMed 22972364Takashima H, Ozaki Y, Morimoto T, Kimura T, Hiro T, Miyauchi K, Nakagawa Y, Yamagishi M, Daida H, Mizuno T, Asai K, Kuroda Y, Kosaka T, Kuhara Y, Kurita A, Maeda K, Amano T, Matsuzaki M; JAPAN-ACS Investigators. Clustering of metabolic syndrome components attenuates coronary plaque regression during intensive statin therapy in patients with acute coronary syndrome: the JAPAN-ACS subanalysis study. Circ J. 2012;76(12):2840-7. doi: 10.1253/circj.cj-11-1495. Epub 2012 Sep 7.
- Derived from this study: PubMed 20684825Ohashi T, Shibata R, Morimoto T, Kanashiro M, Ishii H, Ichimiya S, Hiro T, Miyauchi K, Nakagawa Y, Yamagishi M, Ozaki Y, Kimura T, Daida H, Murohara T, Matsuzaki M. Correlation between circulating adiponectin levels and coronary plaque regression during aggressive lipid-lowering therapy in patients with acute coronary syndrome: subgroup analysis of JAPAN-ACS study. Atherosclerosis. 2010 Sep;212(1):237-42. doi: 10.1016/j.atherosclerosis.2010.05.005. Epub 2010 May 11.
- Derived from this study: PubMed 20467151Hiro T, Kimura T, Morimoto T, Miyauchi K, Nakagawa Y, Yamagishi M, Ozaki Y, Kimura K, Saito S, Yamaguchi T, Daida H, Matsuzaki M; JAPAN-ACS Investigators. Diabetes mellitus is a major negative determinant of coronary plaque regression during statin therapy in patients with acute coronary syndrome--serial intravascular ultrasound observations from the Japan Assessment of Pitavastatin and Atorvastatin in Acute Coronary Syndrome Trial (the JAPAN-ACS Trial). Circ J. 2010 Jun;74(6):1165-74. doi: 10.1253/circj.cj-09-0766. Epub 2010 May 12.
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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.
Masunori Matsuzaki, MD, PhD study chair
Professor of Medicine, Department of Cardiovascular Medicine, Yamaguchi University Graduate School of Medicine
Hiroyuki Daida, MD principal investigator
Professor of Medicine, Department of Cardiovascular Medicine, Juntendo University School of Medicine
Takeshi Kimura, MD principal investigator
Associate Professor of Medicine, Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine
3 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Pitavastatin and Atorvastatin in people with Coronary Disease and Hypercholesterolemia, run by Kyoto University at 3 sites in Japan.
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 9 inclusion and 12 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 4 Oct 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 3 sites in Japan. 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?
plaque volume (time frame: one year). 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 NCT00242944, which also lists 6 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 4 Oct 2023.