Skip to content

Coronary imaging by multislice detector computed tomography in aggressive lipid intervention study (CRYSTAL)

Coronary imaging by multislice detector computed tomography in aggressive lipid intervention study (CRYSTAL) - Coronary imaging by multislice detector computed tomography in aggressive lipid intervention study (CRYSTAL)

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000001204
Enrollment
300
Registered
2008-08-01
Start date
2008-07-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patients with coronary artery disease who underwent PCI

Interventions

Control therapy: Lipid-lowering therapy with 1 to 4 mg pitavastatin daily for a period of 45 months to achieve LDL-C&lt
100mg/dL Aggressive therapy: Lipid-lowering therapy with 1 to 4 mg pitavastatin daily for a period of 45 months to achieve LDL-C&lt
70mg/dL

Sponsors

Department of Advanced Cardiovascular Therapeutics, Osaka University Graduate School of Medicine
Lead Sponsor
Nozaki Tokushukai Hospital, and Nagoya Tokushukai General Hospital
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Patients receiving lipid-lowering agents; LDL-C>=100mg/dL, patients not receiving lipid-lowering agents; LDL-C>=110mg/dL 2) Patients 20 years or older at the time of provision of consent 3) Patients giving written consent on their own volition for participation in this clinical trial after being provided with sufficient explanation about the study

Exclusion criteria

Exclusion criteria: 1) Patients scheduled to undergo CABG during the treatment period 2) Patients on steroid treatment 3) Non-availability of evaluable CT images 4) Patients with malignant disease 5) Patients on treatment with fibrates or nicotinic acid 6) Patients with a history of hypersensitivity to any of the components of the product 7) Patients with liver dysfunction (AST or ALT values of >=100IU) or the following diseases considered to be associated with biliary obstruction and/or defective hepatic metabolism: acute hepatitis, acute exacerbation of chronic hepatitis, liver cirrhosis, hepatic carcinoma and/or icterus 8) Patients on cyclosporine therapy 9) Pregnant and possibly pregnant women, lactating women 10) Patients with renal dysfunction (serum creatinine >=2.0 mg/dL) or dialysis patients 11) Patients who are judged by the principal or other investigators to be not eligible for enrollment in the study

Design outcomes

Primary

MeasureTime frame
Changes in the coronary plaque distribution and coronary plaque CT values

Secondary

MeasureTime frame
1) Changes in LDL-C, TG, HDL-C 2) Correlation between the absolute and percent changes of LDL-C and changes in the coronary plaque distribution 3) Correlation between the absolute and percent changes of LDL-C and changes in the coronary plaque density 4) Correlation between the absolute and percent changes in the blood test results (lipids, oxidative stress markers, adipocytokines) and changes in the coronary plaque distribution 5) Correlation between the absolute and percent change in the blood test results (lipids, oxidative stress markers, adipocytokines) and changes in the coronary plaque values 6) Incidence of major adverse cardiovascular events (MACE; defined as cardiac death, nonfatal MI, PCI or coronary artery bypass grafting, hospitalization due to angina, fatal or nonfatal stroke or TIA) 7) All-cause mortality

Countries

Japan

Contacts

Public ContactKouichi Tachibana

Osaka University Graduate School of Medicine Department of Advanced Cardiovascular Therapeutics

tachibana@act.med.osaka-u.ac.jp06-6879-3441

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026