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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/ct2/show/NCT00097786
Registration number
NCT00097786
Ethics application status
Date submitted
30/11/2004
Date registered
1/12/2004
Date last updated
8/11/2023
Titles & IDs
Public title
Long-term Study of Nateglinide+Valsartan to Prevent or Delay Type II Diabetes Mellitus and Cardiovascular Complications
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Scientific title
A Multinational, Randomized, Double-blind, Placebo-controlled, Forced-titration, 2 x 2 Factorial Design Study of the Efficacy and Safety of Long-term Administration of Nateglinide and Valsartan in the Prevention of Diabetes and Cardiovascular Outcomes in Subjects With Impaired Glucose Tolerance (IGT)
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Secondary ID [1]
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CDJN608B2302
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Universal Trial Number (UTN)
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Trial acronym
Navigator
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Diabetes Mellitus, Type 2
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Condition category
Condition code
Metabolic and Endocrine
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Diabetes
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - Valsartan 160 mg + nateglinide 60 mg
Treatment: Drugs - Valsartan 160 mg + nateglinide placebo
Treatment: Drugs - Nateglinide 60 mg + valsartan placebo
Treatment: Drugs - Valsartan placebo + nateglinide placebo
Experimental: Valsartan 160 mg + nateglinide 60 mg - For the first 2 weeks of treatment, patients took the combination of nateglinide 30 mg (3 times daily, ante cibum [ac] before meals) and valsartan 80 mg (once daily [od] in the morning). After 2 weeks, patients were up-titrated to nateglinide 60 mg ac and valsartan 160 mg od.
Experimental: Valsartan 160 mg + nateglinide placebo - For the first 2 weeks of treatment, patients took valsartan 80 mg capsules (once daily [od] in the morning). After 2 weeks, patients were up-titrated to 160 mg valsartan od. Patients also received nateglinide placebo tablets (3 times daily, ante cibum [ac] before meals).
Experimental: Nateglinide 60 mg + valsartan placebo - For the first 2 weeks of treatment, patients took nateglinide 30 mg tablets (3 times daily, ante cibum [ac] before meals). After 2 weeks, patients were uptitrated to 60 mg nateglinide ac. Patients also received valsartan placebo capsules (once daily [od] in the morning).
Placebo Comparator: Placebo - Patients took 3 nateglinide placebo tablets (3 times daily, ante cibum [ac] before meals) and 1 valsartan placebo capsule (once daily [od] in the morning).
Treatment: Drugs: Valsartan 160 mg + nateglinide 60 mg
The double-blinding of the randomized study medication was maintained by the use of identical placebo and active tablets and capsules for nateglinide and valsartan, respectively. Patients were instructed not to take the morning dose of either medication nor to eat breakfast on the day of a scheduled study visit, but to wait until after the visit was completed. Patients not tolerating the higher dose (Level 2) were down-titrated to receive Level 1. Patients not tolerating the lower dose (Level 1) had a treatment interruption. Starting at Week 2 and throughout the study, attempts were to be made to reach the highest dose level (Level 2), if medically acceptable. Following each change in dose level or re-initiation of treatment, tolerability was assessed after 2 weeks of exposure.
Treatment: Drugs: Valsartan 160 mg + nateglinide placebo
The double-blinding of the randomized study medication was maintained by the use of identical placebo and active tablets and capsules for nateglinide and valsartan, respectively. Patients were instructed not to take the morning dose of either medication nor to eat breakfast on the day of a scheduled study visit, but to wait until after the visit was completed. Patients not tolerating the higher dose (Level 2) were down-titrated to receive Level 1. Patients not tolerating the lower dose (Level 1) had a treatment interruption. Starting at Week 2 and throughout the study, attempts were to be made to reach the highest dose level (Level 2), if medically acceptable. Following each change in dose level or re-initiation of treatment, tolerability was assessed after 2 weeks of exposure.
Treatment: Drugs: Nateglinide 60 mg + valsartan placebo
The double-blinding of the randomized study medication was maintained by the use of identical placebo and active tablets and capsules for nateglinide and valsartan, respectively. Patients were instructed not to take the morning dose of either medication nor to eat breakfast on the day of a scheduled study visit, but to wait until after the visit was completed. Patients not tolerating the higher dose (Level 2) were down-titrated to receive Level 1. Patients not tolerating the lower dose (Level 1) had a treatment interruption. Starting at Week 2 and throughout the study, attempts were to be made to reach the highest dose level (Level 2), if medically acceptable. Following each change in dose level or re-initiation of treatment, tolerability was assessed after 2 weeks of exposure.
Treatment: Drugs: Valsartan placebo + nateglinide placebo
The double-blinding of the randomized study medication was maintained by the use of identical placebo and active tablets and capsules for nateglinide and valsartan, respectively. Patients were instructed not to take the morning dose of either medication nor to eat breakfast on the day of a scheduled study visit, but to wait until after the visit was completed. Patients not tolerating the higher dose (Level 2) were down-titrated to receive Level 1. Patients not tolerating the lower dose (Level 1) had a treatment interruption. Starting at Week 2 and throughout the study, attempts were to be made to reach the highest dose level (Level 2), if medically acceptable. Following each change in dose level or re-initiation of treatment, tolerability was assessed after 2 weeks of exposure.
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Intervention code [1]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Percentage of Patients Reaching the Endpoint: Progression to Diabetes - Valsartan Versus Non-valsartan
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Assessment method [1]
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Progression to diabetes was determined by (a) an algorithm based on central laboratory measurements of fasting plasma glucose and/or a 2 hour oral glucose tolerance test or (b) adjudication by the Diabetes Endpoint Adjudication Committee.
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Timepoint [1]
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Mean patient duration of 4.2 years
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Primary outcome [2]
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Percentage of Patients Reaching the Endpoint: Extended Morbidity and Mortality Event - Valsartan Versus Non-valsartan
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Assessment method [2]
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The extended cardiovascular endpoint was defined as a cardiovascular morbidity/mortality event including cardiovascular death, non-fatal myocardial infarction, non-fatal stroke, revascularization procedure, hospitalization for congestive heart failure, and hospitalization for unstable angina.
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Timepoint [2]
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Mean patient duration of 5.6 years
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Primary outcome [3]
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Percentage of Patients Reaching the Endpoint: Core Cardiovascular Morbidity and Mortality Event - Valsartan Versus Non-valsartan
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Assessment method [3]
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The core cardiovascular endpoint was defined as a cardiovascular morbidity/mortality event including cardiovascular death, non-fatal myocardial infarction, non-fatal stroke and hospitalization for congestive heart failure.
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Timepoint [3]
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Mean patient duration of 5.8 years
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Primary outcome [4]
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Percentage of Patients Reaching the Endpoint: Progression to Diabetes - Nateglinide Versus Non-nateglinide
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Assessment method [4]
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Progression to diabetes was determined by (a) an algorithm based on central laboratory measurements of fasting plasma glucose and/or a 2 hour oral glucose tolerance test or (b) adjudication by the Diabetes Endpoint Adjudication Committee.
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Timepoint [4]
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Mean patient duration of 4.2 years
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Primary outcome [5]
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Percentage of Patients Reaching the Endpoint: Extended Morbidity and Mortality Event - Nateglinide Versus Non-nateglinide
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Assessment method [5]
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The extended cardiovascular endpoint was defined as a cardiovascular morbidity/mortality event including cardiovascular death, non-fatal myocardial infarction, non-fatal stroke, revascularization procedure, hospitalization for congestive heart failure, and hospitalization for unstable angina.
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Timepoint [5]
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Mean patient duration of 5.6 years
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Primary outcome [6]
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Percentage of Patients Reaching the Endpoint: Core Cardiovascular Morbidity and Mortality Event - Nateglinide Versus Non-nateglinide
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Assessment method [6]
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The core cardiovascular endpoint was defined as a cardiovascular morbidity/mortality event including cardiovascular death, non-fatal myocardial infarction, non-fatal stroke and hospitalization for congestive heart failure.
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Timepoint [6]
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Mean patient duration of 5.8 years
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Eligibility
Key inclusion criteria
- Adults
- Impaired glucose tolerance
- Age dependent risk factors
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Minimum age
50
Years
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Maximum age
99
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
- Frank diabetes
For detailed information, call contact person.
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Study design
Purpose of the study
Prevention
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people analysing the results/data
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Intervention assignment
Factorial
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Other design features
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Phase
Phase 3
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/01/2002
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
1/10/2009
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Sample size
Target
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Accrual to date
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Final
9306
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Recruitment in Australia
Recruitment state(s)
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Recruitment hospital [1]
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- Investigative Site
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Recruitment postcode(s) [1]
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- Investigative Site
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Recruitment outside Australia
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United States of America
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New Jersey
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Argentina
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Austria
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Multiple Locations
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Belgium
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Brazil
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Canada
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Chile
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China
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Hungary
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Italy
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Singapore
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Spain
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Uruguay
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Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
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Name
Novartis Pharmaceuticals
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Address
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Ethics approval
Ethics application status
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Summary
Brief summary
This study is a test of the safety and effectiveness of two drugs, one for diabetes and one
for hypertension, in keeping patients with high lab values of glucose from progressing to
frank diabetes and developing cardiovascular complications. People in this study cannot have
frank diabetes but are considered "borderline" based on blood tests. People in the study take
none, one or both of the drugs and do not know which one(s) they are taking.
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Trial website
https://clinicaltrials.gov/ct2/show/NCT00097786
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Novartis Pharmaceuticals
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Address
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Novartis Pharmaceuticals
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Contact person for public queries
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Contact person for scientific queries
Summary Results
For IPD and results data, please see
https://clinicaltrials.gov/ct2/show/NCT00097786
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