CClinicalTrials.gg
CompletedNCT01350609Updated Dec 10, 2015

Pivotal Bioequivalence FDC Nifedipine / Candesartan vs. Loose Combination of Single Components, Fed

A Phase 1 interventional study of Nifedipine/Candesartan (BAY 98-7106) and Nifedipine (Adalat, BAY A1040) and Candesartan (Atacand, BAY 12-9333) in Hypertension, Essential, sponsored by Bayer. Completed at 1 site in Germany. Open to male participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2015-12-10.

Sponsored by Bayer · Phase 1 and Interventional

Phase
Phase 1
Study type
Interventional
Enrollment
49
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
Male
01

Study summary

Randomized, open label, single dose, 2-way crossover study to investigate the bioequivalence of a new fixed dose combination (FDC) tablet of nifedipine GITS and candesartan with the corresponding loose combination under fed conditions.

Read the detailed description

Clinical pharmacology

02

Conditions studied

  • Hypertension, Essential

Keywords

  • essential hypertension, blood pressure, nifedipine, candesartan, FDC
03

In context

Hypertension

6,689 studies on the registry are indexed under Hypertension; 965 are open to participants now.

This study's enrollment of 49 is below the median of 90 across 4,995 interventional studies indexed under Hypertension.

Browse Hypertension studies →

Lead sponsor

Bayer is the lead sponsor of 1,643 studies on the registry; 57 are open to participants now.

Of its 209 completed or terminated interventional studies of FDA-regulated products, 129 (62%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
Male
Accepts healthy volunteers
Yes

Inclusion criteria

  • The informed consent form must be signed before any study specific tests or procedures are done
  • Confirmation of the subject's health insurance coverage prior to the first screening visit
  • Healthy male subject
  • Ethnicity: Caucasian
  • Age: 18 to 45 years (inclusive) at the first screening visit
  • Body mass index (BMI) above or equal 18, and below or equal 29.9 kg / m²
  • Ability to understand and follow study-related instructions

Exclusion criteria

Exclusion Criteria:

  • Suspicion of drug or alcohol abuse
  • Regular daily consumption of more than 1 L of xanthin-containing beverages
  • Intake of foods or beverages containing grapefruit within 2 weeks prior to the first study drug administration (the same applies to pomelos and St. John's Wort)
  • Use of medication within 4 weeks prior to the first study drug administration which could interfere with the investigational products (e.g. CYP3A inhibitors or CYP3A inducers)

    • examples for CYP3A inhibitors: erythromycin, inhibitors of human HIV protease (e.g. ritonavir, saquinavir), amiodarone, diltiazem, verapamil, fluconazole, itraconazole, ketoconazole, clarithromycin, telithromycin, nefazodon, cimetidine;
    • examples for CYP3A inducers: rifampicin, carbamazepin, phenytoin, phenobarbital, or products containing St. John's Wort;
  • Systolic blood pressure below 116 or above 145 mmHg (after at least 15 min supine)
  • At the first screening visit

    • Diastolic blood pressure above 95 mmHg (after at least 15 min supine)
    • Heart rate below 45 or above 95 beats / min (after at least 15 min supine) at the first screening visit
    • Clinically relevant findings in the physical examination
    • Positive urine drug screening or alcohol breath test
  • Exclusion periods from other studies or simultaneous participation in other clinical studies
05

Study design

Phase
Phase 1
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
49 participants (actual)

Study arms

  • Experimental
    Nifedipine/Candesartan (fixed dose)

    Drug: Nifedipine/Candesartan (BAY 98-7106)

  • Active comparator
    Nifedipine/Candesartan (loose)

    Drug: Nifedipine (Adalat, BAY A1040) and Candesartan (Atacand, BAY 12-9333)

Interventions

  • DrugNifedipine/Candesartan (BAY 98-7106)

    Fixed dose combination of 60 mg nifedipine + 32 mg candesartan (1 tablet in one period)

  • DrugNifedipine (Adalat, BAY A1040) and Candesartan (Atacand, BAY 12-9333)

    Loose combination of 1 tablet nifedpipine 60mg (Adalat LA) and 2 tablets candesartan 16mg (Atacand) (3 tablets in one period) .

06

What researchers measure

Primary outcomes

  1. Cmax

    Maximum drug concentration in plasma after dose administration for nifedipine and candesartan

    Time frame: within 48 hours after each dosing

  2. AUC(0-tlast)

    Area under the drug-concentration vs. time curve from time 0 to the last data point for nifedipine and candesartan

    Time frame: within 48 hours after each dosing

Secondary outcomes

  1. AUC

    Area under the curve from time 0 to infinity after single dose for nifedipine and candesartan

    Time frame: Within 48 hours after each dosing

  2. Cmax,norm

    Dose normalized Cmax for nifedipine and candesartan

    Time frame: Within 48 hours after each dosing

  3. AUCnorm

    AUC normalized for dose and body weight for nifedipine and candesartan

    Time frame: Within 48 hours after each dosing

  4. AUC(0-48)

    Area under the plasma concentration-time curve from time zero to 48h for nifedipine and candesartan

    Time frame: Within 48 hours after each dosing

  5. Tmax

    The time of the maximum concentration for nifedipine and candesartan

    Time frame: Within 48 hours after each dosing

  6. t1/2

    Half-life for nifedipine and candesartan

    Time frame: Within 48 hours after each dosing

  7. MRT

    The mean residence time for nifedipine and candesartan

    Time frame: Within 48 hours after each dosing

  8. CL/F

    Oral plasma clearances for nifedipine and candesartan

    Time frame: Within 48 hours after each dosing

  9. Number of participants with adverse events

    Time frame: Approximately 3-7 weeks per subject

07

Study locations

1 site
  • Berlin, 13353, Germany
08

References and documents

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 10, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01350609
Lead sponsor
Bayer
Responsible party
Sponsor
First posted
May 10, 2011
Start date
Apr 2011
Primary completion
Aug 2011
Completion
Sep 2011
Last update
Dec 10, 2015

Study contacts

Bayer Study Director
study director · Bayer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2015. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion