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CompletedNCT03074058Updated Mar 21, 2017

Bioequivalence Study of BAY 77-1931 Orally Disintegrating Tablet

A Phase 1 interventional study of Fosrenol ODT (Lanthanum Carbonate, BAY77-1931) and Fosrenol chewable Tablet (Lanthanum Carbonate, BAY77-1931) in Clinical Pharmacology, sponsored by Bayer. Completed at 1 site in Japan. Open to male participants aged 20 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-03-21.

Sponsored by Bayer · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 8 months after the study started (first participant enrolled Jun 2015, registered Mar 2017).
Phase
Phase 1
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
20 Years to 45 Years
Sex
Male
01

Study summary

The primary objective of this study was to establish the bioequivalence of two different tablet formulations containing BAY77-1931. The secondary objectives of this study were to assess the safety and tolerability, as well as to Investigate the plasma lanthanum concentration after BAY 77-1931 ODT 500 mg administration.

02

Conditions studied

  • Clinical Pharmacology
03

In context

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
20 Years to 45 Years
Sexes eligible
Male
Accepts healthy volunteers
Yes

Inclusion criteria

  • Japanese healthy male adult volunteers (age, 20-45 years; BMI, 17.6-26.4 kg/m2)

Exclusion criteria

Exclusion Criteria:

  • Regular use of medicines including Chinese herbal drugs
  • Clinically relevant findings in the physical examination
  • Subject who cannot take the study drug appropriately (e.g. weak biting force, insufficient salivary flow)
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Fosrenol ODT (Lanthanum Carbonate, BAY77-1931)

    Fosrenol BAY 77-1931 orally disintegrating tablet (ODT) 500 mg in Period 1 (day 1-3) and Fosrenol chewable tablet 500mg in Period 2 (day 4-6). The washout interval between period 1 and 2 will be at least 14 days.

    Drug: Fosrenol ODT (Lanthanum Carbonate, BAY77-1931)

  • Active comparator
    Fosrenol chewable Tablet (Lanthanum Carbonate, BAY77-1931)

    Fosrenol BAY77-1931 chewable tablet in Period 1 and Fosrenol BAY 77-1931 ODT 500 mg in Period 2. The washout interval between period 1 and 2 will be at least 14 days.

    Drug: Fosrenol chewable Tablet (Lanthanum Carbonate, BAY77-1931)

Interventions

  • DrugFosrenol ODT (Lanthanum Carbonate, BAY77-1931)

    Fosrenol orally disintegrating tablet, ODT (Lanthanum Carbonate, BAY77-1931) 500 mg, TID

  • DrugFosrenol chewable Tablet (Lanthanum Carbonate, BAY77-1931)

    Fosrenol chewable Tablet (Lanthanum Carbonate, BAY77-1931) 500mg, TID

06

What researchers measure

Primary outcomes

  1. Pharmacodynamics: Daily urinary phosphate excretion (mmol) on each day

    Each study drug was administered as multiple dose over 4-days under fed conditions with a washout interval of at least 14 days in between. Twenty four hours urine collection were repeated 5 times from morning on Day -2 to that on Day 4.

    Time frame: 6 days

  2. Bioequivalence: Average of daily urinary phosphate excretion (mmol) over 3-day dosing period

    During lanthanum carbonate TID treatment period over 3 days in each period (period 1 = day 1-3; period 2 = day 4-6)

    Time frame: baseline and over 3-days

Secondary outcomes

  1. Pharmacodynamics: Daily urinary phosphate excretion (mmol) on Day 3

    Time frame: 1 day

  2. Plasma lanthanum concentrations (ng/mL)

    To measure plasma concentration of lanthanum, 6 mL of blood were collected before the breakfast on Day 1, Day 2, Day 3 and Day 4, and at 1, 2, 3, 4, 5, 6, 8, 12, 18, 24, 36 and 48 hours after administration on Day 4.

    Time frame: 6 days

  3. Pharmacokinetics: Cmax,md of lanthanum in plasma from pre-administration (Day 4) to 48 hours after the last administration (Day 6)

    Time frame: 6 days

  4. Pharmacokinetics: tmax,md of lanthanum in plasma from pre-administration (Day 4) to 48 hours after the last administration (Day 6)

    Time frame: 6 days

  5. Pharmacokinetics: Cmax,md,norm of lanthanum in plasma from pre-administration (Day 4) to 48 hours after the last administration (Day 6)

    Time frame: 6 days

  6. Pharmacokinetics: AUC(0-tlast)md,norm of lanthanum in plasma from pre-administration (Day 4) to 48 hours after the last administration (Day 6)

    Time frame: 6 days

  7. Pharmacokinetics: t1/2,md of lanthanum in plasmafrom pre-administration (Day 4) to 48 hours after the last administration (Day 6)

    Time frame: 6 days

  8. Number of adverse events as a measure of safety and tolarability

    Time frame: From Day 1, the day of the first study drug administration, in period 1 (day 1-3) to follow up, 7-10 days after the last study drug administration in period 2 (day 4 - 6)

  9. Pharmacokinetics: AUC(0-tlast)md of lanthanum in plasma from pre-administration (Day 4) to 48 hours after the last administration (Day 6)

    Time frame: 6 days

07

Study locations

1 site
  • Fukuoka, 812-0025, Japan
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 21, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03074058
Lead sponsor
Bayer
Responsible party
Sponsor
First posted
Mar 8, 2017
Start date
Jun 10, 2015
Primary completion
Aug 4, 2015
Completion
Aug 21, 2015
Last update
Mar 21, 2017

Study contacts

Bayer Study Director
study director · Bayer

Oversight

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

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This study is completed, as verified in Mar 2017. You cannot join it, but the record below documents what was studied.

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