Efficacy of Telmisartan and the Combination of Telmisartan and Ramipril in type1 Diabetes Patients With Nephropathy

NCT ID: NCT00738660

Last Updated: 2008-08-20

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

PHASE3

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-02-28

Study Completion Date

2008-05-31

Brief Summary

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Hypothesis:

The angiotensin receptor blocker telmisartan is effective at reduction of albumin excretion rate(AER) in patients with type1 diabetes and micro or macroalbuminuria. Dual blockade with the addition of ramipril an angiotensin receptor blocker gives added efficacy for reduction of AER. ARB telmisartan gives a 24 hr BP lowering effect.

Summary:

This is an open label cross over study involving 30 patients who were initially treated with Telmisartan 80 mg for eight weeks followed by addition of Ramipril 10 mg for a further eight weeks. Albuminuria reduction and BP reduction with both clinic and ambulatory BP records were studied at the end of each phase.

Detailed Description

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To evaluate the antialbuminuric efficacy of an angiotensin receptor blocker (ARB) telmisartan and the combination of telmisartan and ramipril in patients with type1 DM and either micro or macroalbuminuria.To evaluate the same drugs for their antihypertensive efficacy and their influence on dipping patterns using ambulatory BP monitoring.

Methods:

Open label cross over study involving 30 patients who were initially treated with telmisartan 80 mg for eight weeks followed by addition of ramipril 10 mg for a further eight weeks. Albuminuria reduction and BP reduction with both clinic and ambulatory BP records were studied at the end of each phase Overnight urine samples of nine hours duration were collected . The volume of urine was verified by measurement in a jar with accuracy of 50ml by the study investigator on every occasion. . Albuminuria was estimated by immuno-turbidimetry Hemocue albumin system Angelholm AD, Sweden (inter assay CV 4.3% ). The albumin excretion rate(AER) at baseline evaluation was determined as the mean AER of the positive urine samples. During subsequent evaluations at the end of 8weeks and at the end of 16 weeks the mean albumin excretion rate from two successive overnight urine samples was taken as the mean .Ambulatory BP (ABP) measurement :ABP was measured using Spacelabs device 90207 Spacelabs inc. use of which is described before(14) .A uniform protocol of inflation once in every 30 min was used. Cuff was applied to the nondominant arm. Recordings were started in all patients between seven and ten AM.

Conditions

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Diabetic Nephropathy

Keywords

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type1 DM microalbuminuria nephropathy albumin excretion rate dual blockade ACEI ARB

Study Design

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Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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A

single experimental arm cross over of patients, addition of Ramipril onto Telmisartan.

Group Type EXPERIMENTAL

Telmisartan, Ramipril

Intervention Type DRUG

80 mg of telmisartan administered for 8weeks,followed by addition of ramipril 10 mg for further 8weeks

Interventions

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Telmisartan, Ramipril

80 mg of telmisartan administered for 8weeks,followed by addition of ramipril 10 mg for further 8weeks

Intervention Type DRUG

Other Intervention Names

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cardace cardiopri tazloc

Eligibility Criteria

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Inclusion Criteria

* Diabetes mellitus by ADA criteria
* Clinical history of DKA
* HbA1C \< 7.5,urine AER \>/= 20 mcg/min on two overnight urine samples

Exclusion Criteria

* Pregnancy
* Unwillingness to use contraception during time of study
* Creatinine \>3 mg/dl
* Suspected/proven non diabetic nephropathy
* Active urinary sediment
Minimum Eligible Age

14 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Post Graduate Institute of Medical Education and Research, Chandigarh

OTHER

Sponsor Role lead

Responsible Party

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Post graduaate institute of medical education and research

Principal Investigators

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sanjay k bhadada, DM

Role: PRINCIPAL_INVESTIGATOR

Post Graduate Institute of Medical Education and Research, Chandigarh

Locations

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Post Graduate Institute of Medical Education and Research

Chandigarh, Chandigarh, India

Site Status

Countries

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India

Other Identifiers

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START1DM

Identifier Type: -

Identifier Source: org_study_id