Clinical trial

Low-Dose Doxycycline Effects on Osteopenic Bone Loss

Name
0511-00-FB
Description
The primary purpose of this clinical trial is to determine whether low-dose doxycycline can reduce alveolar bone density loss in postmenopausal osteopenic women with periodontitis and not on hormone replacement therapy (i.e., estrogen deficient).
Trial arms
Trial start
2002-06-01
Estimated PCD
2005-10-01
Trial end
2005-10-01
Status
Completed
Phase
Early phase I
Treatment
20 mg doxycycline hyclate
Subjects in the LDD group took 20 mg doxycycline hyclate tablets twice daily for two years
Arms:
low-dose doxycycline
Other names:
antibiotic
Placebo
Subjects in the placebo group took a placebo look-alike twice daily for two years.
Arms:
Placebo
Other names:
sugar pill
Size
128
Primary endpoint
Alveolar Bone Density
Baseline, one-year and two-year visits
Eligibility criteria
Inclusion Criteria: * Subjects will be female, postmenopausal and not receiving estrogen replacement therapy. * Subjects will be 45-70 years old at the time of telephone screening. * Subjects will have osteopenia (T-score of -1.0 to -2.5) of the lumbar spine or femoral neck as determined by dual-energy absorptiometry (DEXA) scans. * Subjects will have a history of generalized moderate-advanced periodontitis and will be undergoing periodontal maintenance. * Subjects will be in good general health and willing to sign the IRB-approved consent form. Exclusion Criteria: * Subjects will not have an allergy or hypersensitivity to tetracyclines. * Subjects will not have diseases or take medications that affect the inflammatory or immune responses (e.g., chronic use of non-steroidal anti-inflammatory drugs) or bone remodeling (e.g., drugs such as prescription estrogens, bisphosphonates, calcitonin or steroids). * Subjects will not have any medical condition requiring antibiotic premedication (e.g., prosthetic heart valves, prosthetic joints, and mitral valve prolapse with regurgitation) for routine dental therapy. * Subjects cannot have diabetes mellitus. * Subjects cannot have had active periodontal therapy (quadrant scaling and root planing or periodontal surgery) within the past year. * Subjects cannot have osteoporosis (T-score greater than -2.5) of the lumbar spine or femoral neck.
Protocol
{'studyType': 'INTERVENTIONAL', 'phases': ['PHASE3'], 'designInfo': {'allocation': 'RANDOMIZED', 'interventionModel': 'PARALLEL', 'primaryPurpose': 'TREATMENT', 'maskingInfo': {'masking': 'QUADRUPLE', 'whoMasked': ['PARTICIPANT', 'CARE_PROVIDER', 'INVESTIGATOR', 'OUTCOMES_ASSESSOR']}}, 'enrollmentInfo': {'count': 128, 'type': 'ACTUAL'}}
Updated at
2023-09-06

1 organization

1 product

1 drug

1 indication

Indication
periodontitis