Intensive Medical Treatment for Nephropathy Caused by Type 2 Diabetes With Hypertension

October 21, 2007 updated by: Kitasato University
To observe the effect of intensive medical treatment for type 2 diabetic patients with hypertension: to discover whether or not intensive medical treatment improves proteinuria, and the difference between the clinical meaning of responder and non-responder (criteria: 50% reduced proteinuria continuing 6 months or more during the observation period.)

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

It is reported that the risk of a cardiovascular event occurring is 1.78 times higher in patients with diabetic nephropathy (DN) than in patients without DN. It is also reported that angiotensin II receptor blockade (ARB) prevents the progression of DN in diabetic patients with early phase nephropathy beyond its blood pressure lowering effect. The guidelines by the Japanese Society of Hypertension 2004 recommended that it was necessary to control blood pressure (BP) below 130/80 mmHg in all diabetic patients. This has become the universal target BP for the prevention of cardiovascular events in hypertensive patients. On the study of intensive medical treatment [including angiotensin-converting enzyme inhibitor (ACEI)], it is reported that ACEI not only prevents the progression of DN in microalbuminuria but also decreases proteinuria <1 g/day in the nephrotic syndrome. Therefore, ACEI is thought to be effective for DN. However, it is not clear whether or not intensive medical treatment (including ACEI) improves nephropathy with proteinuria >1 g/day.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
80

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Japan
    • Kanagawa
      • 1-15-1 Kitasato Sagamihara, Kanagawa, Japan, 228-8111
        • Recruiting
        • Kitasato University
        • Contact:
        • Principal Investigator:
          • Keiji Tanaka, Keiji Tanaka

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

20 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

Type 2 diabetic patients with hypertension, with all 5 of the criteria listed below:

  1. Age 20 years and above
  2. Blood pressure >125/75 mmHg
  3. Urinary protein creatinine ratio 1g/g・cr or Urinary protein >1 g/day
  4. Presence of diabetic retinopathy

  5. Already performing dietary management

    • There were no limitations on serum creatinine.
    • BP was recorded 3 times while the patient was seated and averaged.
    • The subjects in this study were outpatients with written informed consent.

Exclusion Criteria:

  1. Another definable renal disease other than DN
  2. Collagenosis
  3. Malignant hypertension with emergent treatment
  4. Severe hypertension (diastolic BP >120 mmHg)
  5. Severe chronic heart failure or acute myocardial infarction in the past 6 months
  6. Atrial fibrillation or severe arrhythmia
  7. Anamnesis of cerebrovascular disease with neuropathy
  8. Anamnesis of anaphylaxis or chronic dermatopathy
  9. Severe hepatic disease
  10. Pregnancy
  11. Anamnesis of anaphylaxis from angiotensin II receptor blocker
  12. Patients are judged to be inapposite by the attending physician

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
HbA1c
Proteinuria
Serum Creatinine
e-GFR
Fasting Plasma Glucose

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Blood pressure
Lipid profile
Smoking
Progression of renal dysfunction
Urinary 8-OHdG,type 4 collagen,high molecular weight adiponectin
Serum angiotensinogen

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Kitasato University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Yokohama City University Medical Center
St. Marianna University School of Medicine
Tokai University

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: Keiji Tanaka, MD,PhD, Kitasato University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2006

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 1, 2009

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 4, 2006

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 4, 2006

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 5, 2006

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 23, 2007

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 21, 2007

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2007

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 8417 (Other Identifier: CTEP)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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