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HypertensionPhase 4TANDEMNCT00234871

Tarka® vs. Lotrel® in Hypertensive, Diabetic Subjects With Renal Disease (TANDEM)

A Phase 4 study testing trandolapril/verapamil and Lotrel (amlodipine/benazepril) in people with Hypertension and Diabetes, run by Abbott.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary objective of this study is to determine if trandolapril/verapamil (Tarka®) is superior to amlodipine/benazepril (Lotrel®) in reduction of albuminuria in hypertensive subjects with Type 2 diabetes mellitus (DM) and diabetic nephropathy Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hypertension, Diabetes, Proteinuria
What is being tested?
trandolapril/verapamil and Lotrel (amlodipine/benazepril)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
357 participants
Where
No sites listed yet
Study dates
Jan 2004to Mar 2005
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diabetes
  • Hypertension
  • Albuminuria

Who cannot join

  • Type 1 DM.
  • Subject has severe hepatic dysfunction at Screening as determined by liver function tests:
  • Bilirubin > 2.0 mg/dL.
  • ALT and/or AST > 3 times the upper limit of normal.
  • Subject has poorly controlled diabetes, based on HbA1c > 10% at Screening.
  • Subject has non-diabetic renal disease.
  • Subject has a hypersensitivity to ACE inhibitor, CCB, torsemide or sulfonylureas.

About this study

Official title: A Phase IV, Randomized, Open-Label, Active Controlled Study to Compare the Effects of Tarka® and Lotrel® on Albuminuria in Hypertensive, Type 2 Diabetic Subjects With Diabetic Nephropathy

The primary objective of this study is to determine if trandolapril/verapamil (Tarka®) is superior to amlodipine/benazepril (Lotrel®) in reduction of albuminuria in hypertensive subjects with Type 2 diabetes mellitus (DM) and diabetic nephropathy

Being tested
trandolapril/verapamil, Lotrel (amlodipine/benazepril)
Keywords
Hypertension, Diabetes, Proteinuria, Tarka, Lotrel
Medical subject headings
Hypertension, Diabetes Mellitus, Proteinuria

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • trandolapril/verapamilDrug

    Also called ABT-TARKA, Tarka

    2/180 mg QD with forced titration after 4 weeks to 4/240 mg QD

  • Lotrel (amlodipine/benazepril)Drug

    5/10 mg QD with forced titration after 4 weeks to 10/20 mg QD

Study groups in NCT00234871
Study groupRoleWhat they receive
1Active comparatorNot described
Receives: Drug: trandolapril/verapamil
2Active comparatorNot described
Receives: Drug: Lotrel (amlodipine/benazepril)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Changes in urinary albumin:creatinine ratio

    Measured: 36 weeks

Secondary outcomes (1)
  1. Changes in blood pressure (BP), BP control, ABPM, proteinuria, GFR lipid parameters, glycemic control, quality of life, CRP, oxidative stress markers, clinical safety labs and adverse events.

    Measured: 36 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Oct 2005 (estimated)
  2. Study startJan 2004
  3. Primary completionMar 2005

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
357 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00234871
Sponsor's protocol ID
M03-599
Acronym
TANDEM
Status last verified
Jul 2008
First submitted
13 Sep 2005
Last updated
15 Jul 2008
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing trandolapril/verapamil and Lotrel (amlodipine/benazepril) in people with Hypertension and Diabetes, run by Abbott.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Jul 2008. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes in urinary albumin:creatinine ratio (time frame: 36 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Jul 2008.

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