Long-term Study of Nateglinide+Valsartan to Prevent or Delay Type II Diabetes Mellitus and Cardiovascular Complications

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.

Conditions

• Diabetes Mellitus, Type 2

Interventions

DRUG

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.

DRUG

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.

DRUG

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.

DRUG

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.

Sponsors & Collaborators

• Novartis Pharmaceuticals

  lead INDUSTRY

Principal Investigators

• Novartis Pharmaceuticals · Novartis Pharmaceuticals

Study Design

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

DOUBLE

Model

FACTORIAL

Eligibility

Min Age

50 Years

Max Age

99 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2002-01-31

Primary Completion

2009-10-31

Completion

2009-10-31

Countries

• United States
• Argentina
• Australia
• Austria
• Belgium
• Brazil
• Canada
• Chile
• China
• Colombia
• Czechia
• Denmark
• Ecuador
• Finland
• France
• Germany
• Greece
• Guatemala
• Hong Kong
• Hungary
• Italy
• Malaysia
• Mexico
• Netherlands
• Norway
• Peru
• Poland
• Russia
• Singapore
• Slovakia
• South Africa
• Spain
• Sweden
• Switzerland
• Taiwan
• Turkey (Türkiye)
• United Kingdom
• Uruguay