The Multicenter Atorvastatin Plaque Stabilization (MAPS) Study

NCT ID: NCT01053065

Last Updated: 2021-04-30

Study Results

Results pending

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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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Brief Summary

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The impact on cardiovascular events achieved by statin therapy seems to be mostly attributable to the cholesterol-lowering effect with a highly debated contribution of the lipid-independent pleiotropic effects. However, a short-term benefit has been documented for patients treated with statins in acute coronary syndromes and other clinical settings. These observations strengthened the hypothesis of additional, so-called pleiotropic actions of statins.

The investigators therefore sought to investigate how different lipid-lowering strategies (non-statin therapy, low-dose statin and high-dose statin) affects cellular composition of carotid plaque over a short-term period of three months. Specifically the investigators tried and dissect the LDL-C lowering impact on plaque cellular composition as compared to the lipid-independent contribution on plaque macrophage and smooth muscle cells.

Detailed Description

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Patients (with Total Cholesterol (TC) ranging between 5.83-7.64 mmol/l), never treated with lipid lowering drugs, with symptomatic carotid stenosis \>70% (NASCET criteria), and therefore eligible for carotid endarterectomy, were recruited. All patients were enrolled within 30 days from the clinical event, and randomized to one of three treatment groups. Each group, composed of 20 patients, received atorvastatin 10 mg/day (AT-10 group), or atorvastatin 80 mg/day (AT-80 group), or cholestyramine (Questran, Bristol Myer Squibb) 8 g/day plus sitosterol (Unilever) 2.5 g/day (C-S group) for three months prior to the vascular procedure. A placebo group was not included for ethical reasons due to the high cardiovascular risk profile in this population.

Conditions

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Symptomatic Carotid Stenosis Hypercholesterolemia Indication for Carotid Endarterectomy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

SINGLE

Participants

Study Groups

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Atorvastatin 10 mg/day

Arm composed of 20 patients, receiving atorvastatin 10 mg/day

Group Type ACTIVE_COMPARATOR

Atorvastatin - Cholestyramine - Sitosterol

Intervention Type DRUG

Atorvastatin 80 mg/day

Arm composed of 20 patients, receiving atorvastatin 80 mg/day

Group Type ACTIVE_COMPARATOR

Atorvastatin - Cholestyramine - Sitosterol

Intervention Type DRUG

Cholestyramine - Sitosterol

Arm composed of 20 patients receiving cholestyramine 8 g/day plus sitosterol 2.5 g/day

Group Type ACTIVE_COMPARATOR

Atorvastatin - Cholestyramine - Sitosterol

Intervention Type DRUG

Interventions

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Atorvastatin - Cholestyramine - Sitosterol

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Symptomatic carotid stenosis \> 70% (NASCET criteria)
* Eligibility for carotid endarterectomy
* Total cholesterol level between 5.83 and 7.64 mmol/L
* Never treated with lipid lowering drugs

Exclusion Criteria

* Previous lipid lowering therapy
* Total cholesterol \<5.83 or \>7.64 mmol/L
* Evidence of chronic inflammatory disease (clinical and laboratory).
* Patients at high risk for cerebrovascular events (i.e. ulcerated carotid plaque, recurrent TIAs).
Minimum Eligible Age

50 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Biomedical Foundation for Cardiovascular Research of Padova

UNKNOWN

Sponsor Role collaborator

Pfizer

INDUSTRY

Sponsor Role collaborator

University of Padova

OTHER

Sponsor Role lead

Principal Investigators

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Paolo Pauletto, MD

Role: PRINCIPAL_INVESTIGATOR

University of Padova - Italy

Locations

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University of Chieti Medical School

Chieti, , Italy

Site Status

University of Padova Medical School

Padua, , Italy

Site Status

University of Padova Medical School - Treviso Branch

Treviso, , Italy

Site Status

Countries

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Italy

References

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Pauletto P, Puato M, Faggin E, Santipolo N, Pagliara V, Zoleo M, Deriu GP, Grego F, Plebani M, Sartore S, Bon GB, Heymes C, Samuel JL, Pessina AC. Specific cellular features of atheroma associated with development of neointima after carotid endarterectomy: the carotid atherosclerosis and restenosis study. Circulation. 2000 Aug 15;102(7):771-8. doi: 10.1161/01.cir.102.7.771.

Reference Type BACKGROUND
PMID: 10942746 (View on PubMed)

Faggin E, Zambon A, Puato M, Deeb SS, Bertocco S, Sartore S, Crepaldi G, Pessina AC, Pauletto P. Association between the --514 C-->T polymorphism of the hepatic lipase gene promoter and unstable carotid plaque in patients with severe carotid artery stenosis. J Am Coll Cardiol. 2002 Sep 18;40(6):1059-66. doi: 10.1016/s0735-1097(02)02116-2.

Reference Type BACKGROUND
PMID: 12354428 (View on PubMed)

Other Identifiers

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MAPS

Identifier Type: -

Identifier Source: org_study_id

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