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OsteoporosisPhase 1NCT00806416

A Study of the Bioequivalence of 70 mg Alendronate and 70 mg Alendronate in Combination With 2800 IU Vitamin D

A Phase 1 study testing alendronate sodium (+) cholecalciferol, Comparator: alendronate and Comparator: cholecalciferol (Vitamin D) in people with Osteoporosis, run by Organon and Co.

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 study will evaluate the bioequivalence of alendronate in combination with vitamin D (cholecalciferol) compared to alendronate alone and the bioequivalence of vitamin D in combination with alendronate compared to vitamin D alone. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Osteoporosis
What is being tested?
alendronate sodium (+) cholecalciferol, Comparator: alendronate and Comparator: cholecalciferol (Vitamin D)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
244 participants
Where
No sites listed yet
Study dates
May 2003to Jan 2004
Phase
Phase 1
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 18 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Male or nonpregnant female age 18 to 65 years
  • Female of childbearing potential on appropriate method of contraception and not nursing
  • BMI (body mass index) less than or equal to 30 kg/m2
  • Subject is in good health
  • Willing to limit direct sunlight and apply sunscreen if in the sun more than 1 hour

Who cannot join

  • mental or legal incapacitation
  • received bisphosphonate treatment within 3 months of screening
  • unable to sit or stand upright for at least 2 hours

About this study

Official title: A 2-Part, Open-Label, Randomized, Crossover Study to Evaluate the Bioequivalence of the 70 mg Alendronate/2800 IU Vitamin D3 Final Market Combination Tablet to a 70 mg Alendronate Marketed Tablet, and the Relative Bioavailability of Vitamin D3

This study will evaluate the bioequivalence of alendronate in combination with vitamin D (cholecalciferol) compared to alendronate alone and the bioequivalence of vitamin D in combination with alendronate compared to vitamin D alone.

Conditions
Osteoporosis
Being tested
alendronate sodium (+) cholecalciferol, Comparator: alendronate, Comparator: cholecalciferol (Vitamin D)
Medical subject headings
Osteoporosis

What participants receive

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

  • alendronate sodium (+) cholecalciferolDrug

    A single dose tablet of 70 mg alendronate/2800 IU (international unit) vitamin D in one treatment period of each sequence. There will be a 12 day interval between each treatment period.

  • Comparator: alendronateDrug

    A single dose table of 70 mg alendronate in one treatment period of each sequence. There will be a 12 day interval between each treatment period.

  • Comparator: cholecalciferol (Vitamin D)Dietary supplement

    A single dose tablet of 2800 IU vitamin D in one treatment period of each sequence. There will be a 12 day interval between each treatment period.

Study groups in NCT00806416
Study groupRoleWhat they receive
Sequence 1Experimentalalendronate/vitamin D combination then alendronate
Receives: Drug: alendronate sodium (+) cholecalciferol; Drug: Comparator: alendronate
Sequence 2Experimentalalendronate then alendronate/vitamin D combination
Receives: Drug: alendronate sodium (+) cholecalciferol; Drug: Comparator: alendronate
Sequence 3Experimentalalendronate/vitamin D combination then vitamin D
Receives: Drug: alendronate sodium (+) cholecalciferol; Dietary Supplement: Comparator: cholecalciferol (Vitamin D)
Sequence 4Experimentalvitamin D then alendronate/vitamin D combination
Receives: Drug: alendronate sodium (+) cholecalciferol; Dietary Supplement: Comparator: cholecalciferol (Vitamin D)

What is being measured

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

  1. Part 1: The Total Urinary Excretion of Alendronate With Alendronate/Vitamin D Combination Tablet Relative to Alendronate Tablet

    Urinary excretion of alendronate was determined over a 36-hour period following single-dose administration of a 70 mg alendronate/2800-IU vitamin D3 combination tablet or 70 mg alendronate alone tablet. Urine for each treatment period was collected at -2 to 0 hours predose, 0 to 8, 8 to 24, and 24 to 36 hours postdose.

    Measured: On Day 1 across the 36-hour urinary collection period (Periods 1 and 2).

  2. Part II : The Pharmacokinetic Parameters AUC0-120 hr of Vitamin D in Combination Tablet Relative to Vitamin D Tablet

    Serum vitamin D3 pharmacokinetic parameter AUC0-120 hr (area under the serum concentration-time curve) after treatment on Day 1was calculated following single-dose administration of a 70 mg alendronate/2800-IU vitamin D3 combination tablet or 2800-IU vitamin D3 tablet.

    Serum for each treatment period was collected at -24, -18, -12, -6, and 0 hours predose, and 2, 3, 5, 7, 9, 12, 16, 24, 36, 48, 72, 96, and 120 hours postdose.

    Measured: On Day 1 across the 120-hour plasma collection period (Periods 1 and 2).

  3. Part II : The Pharmacokinetic Parameters Cmax of Vitamin D in Combination Tablet Relative to Vitamin D Tablet

    Serum vitamin D3 pharmacokinetic parameter Cmax (maximum concentration observed in serum) after treatmen on Day 1was calculated following single-dose administration of a 70 mg alendronate/2800-IU vitamin D3 combination tablet or 2800-IU vitamin D3 tablet. Serum for each treatment period was collected at -24, -18, -12, -6, and 0 hours predose, and 2, 3, 5, 7, 9, 12, 16, 24, 36, 48, 72, 96, and 120 hours postdose.

    Measured: On Day 1 across the 120-hour plasma collection period (Periods 1 and 2).

Timeline

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

  1. First posted10 Dec 2008 (estimated)
  2. Study startMay 2003
  3. Primary completionAug 2003
  4. Study completionJan 2004

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 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
244 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00806416
Sponsor's protocol ID
0217A-226
Other IDs
2008_596
Status last verified
Feb 2022
First submitted
9 Dec 2008
Last updated
8 Feb 2022
Data monitoring committee
No

Publications

  • Denker AE, Lazarus N, Porras A, Ramakrishnan R, Constanzer M, Scott BB, Chavez-Eng C, Woolf E, Maganti L, Larson P, Gottesdiener K, Wagner JA. Bioavailability of alendronate and vitamin D(3) in an alendronate/vitamin D(3) combination tablet. J Clin Pharmacol. 2011 Oct;51(10):1439-48. doi: 10.1177/0091270010382010. Epub 2010 Dec 8.

    PubMed 21148044

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing alendronate sodium (+) cholecalciferol, Comparator: alendronate and Comparator: cholecalciferol (Vitamin D) in people with Osteoporosis, run by Organon and Co.

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 5 inclusion and 3 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 Feb 2022. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 12 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?

Part 1: The Total Urinary Excretion of Alendronate With Alendronate/Vitamin D Combination Tablet Relative to Alendronate Tablet (time frame: On Day 1 across the 36-hour urinary collection period (Periods 1 and 2).). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00806416, which also lists 1 linked publication.

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 Feb 2022.

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