AzTrials
AzTrials

OsteoporosisPhase 3NCT00004650

Phase III Randomized Study of the Effect of Postmenopausal Estrogen Replacement Therapy on Alveolar Bone Loss

A Phase 3 study testing conjugated estrogens and Medroxyprogesterone in people with Osteoporosis, run by National Institute of Dental and Craniofacial Research (NIDCR).

Completed

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

Official record
Search all trials

Trial summary

OBJECTIVES: I. Quantify periodontal alveolar bone loss rates in postmenopausal women. II. Evaluate the effects of estrogen on alveolar bone loss rates in these patients. III. Determine whether changes in periodontal bone mass relate to bone mass changes in other skeletal sites in these patients. Read more about this study

Who is it for?
Ages 0 years and older, women only
Conditions the study is for
Osteoporosis
What is being tested?
conjugated estrogens and Medroxyprogesterone
How many people
150 participants
Where
No sites listed yet
Study dates
Aug 1993to not given
Phase
Phase 3
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 0 years and older
  • Women only
  • No healthy volunteers
  • Child, Adult, Older adult

PROTOCOL ENTRY CRITERIA:

  • Women postmenopausal for at least 2 years
  • At least 10 teeth for which radiographic measurements can be obtained, i.e.: Not severely tilted Not so closely spaced that interproximal bone is thin Not in positions of restricted access

About this study

OBJECTIVES: I. Quantify periodontal alveolar bone loss rates in postmenopausal women.

II. Evaluate the effects of estrogen on alveolar bone loss rates in these patients.

III. Determine whether changes in periodontal bone mass relate to bone mass changes in other skeletal sites in these patients.

Read the detailed description

PROTOCOL OUTLINE: This is a randomized, double-blind, placebo controlled study. Patients are randomly assigned to receive placebo or conjugated estrogens and, if no prior hysterectomy, medroxyprogesterone. Patients also receive calcium supplementation therapy daily for 3 years.

Participants in the placebo group may be removed from study if bone loss exceeds 5% per year.

A study duration of 3 years is anticipated.

Conditions
Osteoporosis
Being tested
conjugated estrogens, Medroxyprogesterone
Keywords
disease-related problem/condition, osteoporosis, rare disease
Medical subject headings
Osteoporosis, Rare Diseases

What participants receive

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

  • conjugated estrogensDrug

  • MedroxyprogesteroneDrug

Timeline

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

  1. First posted25 Feb 2000 (estimated)
  2. Study startAug 1993

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 3
Primary purpose
Treatment
Allocation
Randomised
Masking
Double blind
Enrolment
150 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00004650
Sponsor's protocol ID
199/11726
Other IDs
WUSM-900449
Status last verified
Jun 1999
First submitted
24 Feb 2000
Last updated
24 Jun 2005
Results posted
No

Publications

  • Hildebolt CF, Pilgram TK, Dotson M, Yokoyama-Crothers N, Muckerman J, Hauser J, Cohen S, Kardaris E, Vannier MW, Hanes P, Shrout MK, Civitelli R. Attachment loss with postmenopausal age and smoking. J Periodontal Res. 1997 Oct;32(7):619-25. doi: 10.1111/j.1600-0765.1997.tb00940.x.

    PubMed 9401935
  • Hildebolt CF. Osteoporosis and oral bone loss. Dentomaxillofac Radiol. 1997 Jan;26(1):3-15. doi: 10.1038/sj.dmfr.4600226.

    PubMed 9446984
  • Hildebolt CF, Brunsden B, Yokoyama-Crothers N, Pilgram TK, Townsend KE, Vannier MW, Shrout MK. Comparison of reliability of manual and computer-intensive methods for radiodensity measures of alveolar bone loss. Dentomaxillofac Radiol. 1998 Jul;27(4):245-50. doi: 10.1038/sj/dmfr/4600352.

    PubMed 9780904

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing conjugated estrogens and Medroxyprogesterone in people with Osteoporosis, run by National Institute of Dental and Craniofacial Research (NIDCR).

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

Who may be eligible to take part?

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 24 Jun 2005. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00004650, which also lists 3 linked publications.

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 24 Jun 2005.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in