- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00357877
Prevention of Adult Caries Study (PACS)
Prevention of Adult Caries Study
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Study Locations
-
-
Arizona
-
Tuba City, Arizona, United States, 86045-0600
- Tuba City Regional Health Care
-
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Massachusetts
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Boston, Massachusetts, United States, 02111
- Tufts University School of Dental Medicine
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Boston, Massachusetts, United States, 02129
- Dental Services of Massachusetts
-
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Oregon
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Portland, Oregon, United States, 97227
- Center for Health Research
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- 18 years of age and older
- at least 20 intact natural teeth, excluding third molars
- 2 or more lesions, of which at least one must be a cavitated D2 or D3
- willing and able to provide informed consent
Exclusion Criteria
- pregnant or planning to become pregnant or planning to become pregnant during the study (breastfeeding is permitted)
- use of fixed orthodontic appliances
- allergic to any of the ingredients of the study medication
- long-term antibiotic therapy
- a history of, or currently active, radiation therapy for cancers of the head or neck
- Sjögren's syndrome
- advanced periodontitis
- consumption of the equivalent of more than five servings of acidic or sugared drinks per day
- having 10 or more lesions requiring restorative care at the time of the screening visit
- remineralization therapy within one month of randomization
- investigator discretion
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: Placebo Dental Coating
Dental coating with all ingredients except Chlorhexidine topically applied by dental professional supragingivally to the full dentition
|
|
Active Comparator: Active Dental Coating
10% w/v chlorhexidine acetate coating FDA IND #45466.
Dental coating with all ingredients including Chlorhexidine topically applied by dental professional supragingivally to the full dentition
|
Dental coating topically applied by dental professional supragingivally to the full dentition
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Total Net D12FS Caries Increment (Total of Non-cavitated Lesions (D1), Cavitated Lesions (D2) and Sound Surfaces (S))
Time Frame: (V1) to the 13 month follow-up visit
|
Study duration was too short to have progression from D2 (cavitated lesions) to D3 (cavitated lesions that involved dentin). D2 and D3 were treated equivalently for analysis. This measure is computed as the sum of weighted counts of transitions in tooth surface status (root and coronal surfaces combined) from randomization to the 13-month follow-up visit. Disease progression had a positive weight (e.g., S-to-D1 (sound to non-cavitated lesion) or D1-to-D2 (non-cavitated to cavitated lesion) = 1, S-to-D2 (sound to cavitated lesion)= 2). Reversal had a negative weight (e.g., D1-to-S = -1). No change, transitions to or from missing or unscorable, and impossible transitions had 0 weight. Incident fillings and crowns were treated the same as incident D2 lesions for purposes of scoring. More details of the transition weights may be found at Vollmer WM et al. (2010). Design of the Prevention of Adult Caries Study (PACS): a randomized clinical trial assessing the effect of a |
(V1) to the 13 month follow-up visit
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Cumulative Net D12FS Caries Increment
Time Frame: Visit 1, 7-month follow-up, 13-month follow-up
|
This measure was computed similar to the total net D12FS increment, but separately scored and combined transitions from the baseline to 7-month visits and from the 7- to 13-month visits, rather than simply looking at the baseline to 13-month visits.
|
Visit 1, 7-month follow-up, 13-month follow-up
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Total Crude D12FS Caries Increment
Time Frame: V1-13-month follow-up
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Computed analogous to the total net D12FS caries increment, but ignoring reversals (essentially assigned them zero weight).
Computed only using baseline to 13-month visit data.
|
V1-13-month follow-up
|
Cumulative Crude D12FS Caries Increment
Time Frame: Visit 1, 7-month follow-up, 13-month follow-up
|
This is computed analogous to the cumulative net D12FS increment, but ignoring reversals by assigning them weights of zero.
|
Visit 1, 7-month follow-up, 13-month follow-up
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Athena Papas, PhD DMD, Tufts University of Dental Medicine
Publications and helpful links
General Publications
- Papas AS, Vollmer WM, Gullion CM, Bader J, Laws R, Fellows J, Hollis JF, Maupome G, Singh ML, Snyder J, Blanchard P; PACS Collaborative Group. Efficacy of chlorhexidine varnish for the prevention of adult caries: a randomized trial. J Dent Res. 2012 Feb;91(2):150-5. doi: 10.1177/0022034511424154. Epub 2011 Dec 7.
- Singh M, Papas A, Vollmer W, Bader J, Laws R, Maupome G, Snyder J, Blanchard P. Predictors of coronal caries progression in adults: results from the Prevention of Adult Caries Study. Community Dent Oral Epidemiol. 2013 Dec;41(6):558-64. doi: 10.1111/cdoe.12059. Epub 2013 Jul 9.
- Banting DW, Amaechi BT, Bader JD, Blanchard P, Gilbert GH, Gullion CM, Holland JC, Makhija SK, Papas A, Ritter AV, Singh ML, Vollmer WM. Examiner training and reliability in two randomized clinical trials of adult dental caries. J Public Health Dent. 2011 Fall;71(4):335-44. doi: 10.1111/j.1752-7325.2011.00278.x. Epub 2011 Aug 17.
- Vollmer WM, Papas AS, Bader JD, Maupome G, Gullion CM, Hollis JF, Snyder JJ, Fellows JL, Laws RL, White BA; PACS Collaborative Research Group. Design of the Prevention of Adult Caries Study (PACS): a randomized clinical trial assessing the effect of a chlorhexidine dental coating for the prevention of adult caries. BMC Oral Health. 2010 Oct 5;10:23. doi: 10.1186/1472-6831-10-23.
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- DE017753-01
- U01DE017753 (U.S. NIH Grant/Contract)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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