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HypertensionPhase 2NCT00768560

Nifedipine (Adalat CR, BAY A1040) High Dose PK/PD Study

A Phase 2 study testing Nifedipine (Adalat CR, BAYA1040) 80mg OD, Nifedipine (Adalat CR, BAYA1040) 40mg BID and Nifedipine (Adalat CR, BAYA1040) 40mg OD in people with Hypertension, run by Bayer at 3 sites in Japan.

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

This is a multi-center, randomized, double-blind, 6 x 3 cross-over study. All patients who meet the entry criteria will be required to stop taking any other anti-hypertensive agents than Adalat CR (controlled release), if taken, before starting 4 weeks (±7days) open-label Adalat CR 40 mg once daily (OD) treatment… Read more about this study

Who is it for?
Ages 20 to 75 years
Conditions the study is for
Hypertension
What is being tested?
Nifedipine (Adalat CR, BAYA1040) 80mg OD, Nifedipine (Adalat CR, BAYA1040) 40mg BID and Nifedipine (Adalat CR, BAYA1040) 40mg OD
Could I receive a placebo?
No, everyone receives an active treatment
How many people
35 participants
Where
3 sitesJapan
Study dates
Jan 2008to May 2008
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 20 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male and female
  • 20 years or older and less than 75 years
  • Outpatient
  • Untreated or treated patients with antihypertensive agents whose blood pressure (BP) in sitting position at entry (Visit 1) is as follows.
  • Untreated patients: systolic blood pressure (SBP) >= 160mmHg or diastolic blood pressure (DBP) >= 100mmHg
  • Treated patients: SBP >= 140mmHg or DBP >= 90mmHg (at trough)

Who cannot join

  • Patients whose BP during baseline treatment period is: SBP>=200mmHg or DBP>=120mmHg.
  • Patients with secondary hypertension or hypertensive emergency.
  • Patients with cardiovascular or cerebrovascular ischemic event (stroke, transient ischemic attack (TIA), myocardial infarction or unstable angina), or with history of these within 6 months prior to the study.
  • Patients with intracranial or subarachnoid hemorrhage, or with history of these within 6 months prior to the study.
  • Patients with server hematopoietic dysfunction (acute/chronic leukemia, myeloma, malignant lymphoma, myelodysplastic syndrome, aplastic anemia), or with history of these.

Trial locations and contacts

3 sites in 1 country.

Japan3 sites
  • Study site

    Koshigaya, Saitama, 343-0827

  • Study site

    Sendai, Miyagi, 982-0032

  • Study site

    Suita, Osaka, 565-0853

Other trials in Japan

About this study

Official title: Evaluation of the Efficacy, Safety, and Pharmacokinetics/Pharmacodynamics of BAY A1040 CR Tablet on High Dose Administration in Patients With Essential Hypertension.

This is a multi-center, randomized, double-blind, 6 x 3 cross-over study. All patients who meet the entry criteria will be required to stop taking any other anti-hypertensive agents than Adalat CR (controlled release), if taken, before starting 4 weeks (±7days) open-label Adalat CR 40 mg once daily (OD) treatment phase (baseline treatment period). Of them, those who are confirmed with their eligibility as subjects for the present study at the end of the baseline treatment period will be randomly allocated to one of the 6 treatment sequences on the basis of a computer-generated randomization list. Subsequently, BAY A1040 CR tablet 40 mg OD, 40 mg twice daily (BID) or 80 mg OD will be administered to a total of 6 weeks, 2 weeks per each treatment period (Period 1-3) under double-blind conditions using BAY A1040 CR tablet 40 mg and its placebo as follows (Double-blind treatment period).

Read the detailed description

Issues on safety are addressed in the Adverse Event section.

Conditions
Hypertension
Being tested
Nifedipine (Adalat CR, BAYA1040) 80mg OD, Nifedipine (Adalat CR, BAYA1040) 40mg BID, Nifedipine (Adalat CR, BAYA1040) 40mg OD
Medical subject headings
Hypertension

What participants receive

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

  • Nifedipine (Adalat CR, BAYA1040) 80mg ODDrug

    Nifedipine (Adalat CR, BAYA1040) 80 milligram (mg) once daily (OD) in the morning

  • Nifedipine (Adalat CR, BAYA1040) 40mg BIDDrug

    Nifedipine (Adalat CR, BAYA1040) 40 milligram (mg) twice daily (BID). 40 mg in the morning and 40 mg in the evening

  • Nifedipine (Adalat CR, BAYA1040) 40mg ODDrug

    Nifedipine (Adalat CR, BAYA1040) 40 milligram (mg) once daily (OD) in the morning

Study groups in NCT00768560
Study groupRoleWhat they receive
Nifedipine (Adalat CR, BAYA1040) 40 mg ODActive comparatorNifedipine (Adalat CR, BAYA1040) 40 milligram (mg) once daily (OD) in the morning
Receives: Drug: Nifedipine (Adalat CR, BAYA1040) 40mg OD
Nifedipine (Adalat CR, BAYA1040) 40 mg BIDExperimentalNifedipine (Adalat CR, BAYA1040) 40 milligram (mg) twice daily (BID). 40 mg in the morning and 40 mg in the evening
Receives: Drug: Nifedipine (Adalat CR, BAYA1040) 40mg BID
Nifedipine (Adalat CR, BAYA1040) 80 mg ODExperimentalNifedipine (Adalat CR, BAYA1040) 80 milligram (mg) once daily (OD) in the morning
Receives: Drug: Nifedipine (Adalat CR, BAYA1040) 80mg OD

What is being measured

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

  1. Change of Sitting Blood Pressure

    Changes of sitting SBP and DBP (trough values) from baseline (ie [trough BP at the end of each period during the double-blind treatment period] minus [trough BP at the end of the baseline treatment period])

    Measured: Baseline and after 2 weeks treatment

Secondary outcomes (6)
  1. Differences of Systolic Blood Pressure Profile

    Differences in blood pressure at the same time points (0, 2, 4, 6, 8, 10, 12, 24-hour post-dose) between 2 different days (ie, end of baseline treatment period and end of 2-week treatment period)

    Measured: Baseline and after 2 weeks treatment

  2. Differences of Diastolic Blood Pressure Profile

    Differences in blood pressure at the same time points (0, 2, 4, 6, 8, 10, 12, 24-hour post-dose) between 2 different days (ie, end of baseline treatment period and end of 2-week treatment period)

    Measured: Baseline and after 2 weeks treatment

  3. Target Blood Pressure Achievement in Elderly (≥65)

    Elderly subjects (≥65 years) without diabetes mellitus or chronic renal disorders and target BP SBP <140 mm Hg and DBP <90 mm Hg

    Measured: After 2 weeks treatment

  4. Target Blood Pressure Achievement in Non-elderly (<65)

    Non-elderly subjects (<65 years) without diabetes mellitus or chronic renal disorder and target BP SBP <130 mm Hg and DBP <85 mm Hg

    Measured: After 2 weeks treatment

  5. Target Blood Pressure Achievement in Subjects With Diabetes Mellitus or Chronic Renal Disorder

    Subjects with diabetes mellitus or chronic renal disorders and target BP SBP <130 mm Hg and DBP <80 mm Hg

    Measured: After 2 weeks treatment

  6. Target Blood Pressure Achievement in All Subjects

    Subjects (≥65 years) without diabetes mellitus or chronic renal disorders and target BP SBP <140 mm Hg and DBP <90 mm Hg. Subjects (<65 years) without diabetes mellitus or chronic renal disorder and target BP SBP <130 mm Hg and DBP <85 mm Hg. Subjects with diabetes mellitus or chronic renal disorders and target BP SBP <130 mm Hg and DBP <80 mm Hg.

    Measured: After 2 weeks treatment

Timeline

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

  1. First posted8 Oct 2008 (estimated)
  2. Study startJan 2008
  3. Primary completionMay 2008
  4. Study completionMay 2008

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
35 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00768560
Sponsor's protocol ID
13012
Status last verified
May 2015
First submitted
7 Oct 2008
Last updated
8 Jun 2015
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Nifedipine (Adalat CR, BAYA1040) 80mg OD, Nifedipine (Adalat CR, BAYA1040) 40mg BID and Nifedipine (Adalat CR, BAYA1040) 40mg OD in people with Hypertension, run by Bayer at 3 sites in Japan.

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 6 inclusion and 5 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 8 Jun 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in Japan. Whether a site is taking part right now should be confirmed with that site. See every site.

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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 2 Feb 2010). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Change of Sitting Blood Pressure (time frame: Baseline and after 2 weeks treatment). 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 8 Jun 2015.

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