NCT04280406

Brief Summary

Introduction: In order to minimize postoperative morbidity and failures of dental implant therapy, several antibiotic regimens have been proposed in the literature. However, the extensive use of antibiotics in health care has been debated due to the adverse effects and bacterial resistance. Furthermore, the impact of preoperative antibiotics on peri-implant bone level is still not clear. Objectives: The primary objective of this study will be to assess whether giving preoperative antibiotics (azithromycin 500mg) after implant placement over 7 days will influence peri-implant crestal bone levels after 4 months in healthy patients undergoing platform-switched implant placement. The secondary objectives will be to evaluate postoperative pain severity, surgery-associated morbidities, and 1-year implant survival rate. Methods: Fifty individuals will be recruited in a double-masked 2-arm randomized clinical trial. Participants in the intervention group will receive 500mg of azithromycin 1 hour before implant placement. Participants in the control group will take one placebo 1 hour preoperatively. The changes in mesial and distal crestal bone level (primary outcome) will be measured at baseline and 4-month follow-up using standardized periapical radiographs. Pain severity and surgery-associated morbidities (secondary outcomes) will be evaluated by clinical examinations and self-administered questionnaires. Implant survival rate will be assessed at the 1-year follow-up. Descriptive and bivariate analyses will be used to analyze the data. A P value ≤ 0.05 will be considered statistically significant. Clinical relevance: This study will be the first placebo-controlled double-blinded randomized clinical trial studying the effect of preoperative azithromycin on radiographical, clinical and patient-based outcomes after implant surgery. This type of design will reduce as much as possible the risk of bias and increasing the quality of evidence. The results from this study might help provide guidelines for clinicians that will optimize implant survival rate while decreasing antibiotics exposure to patients undergoing straightforward implant surgery.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P50-P75 for phase_1

Timeline
Completed

Started Feb 2020

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 17, 2020

Completed
4 days until next milestone

First Posted

Study publicly available on registry

February 21, 2020

Completed
4 days until next milestone

Study Start

First participant enrolled

February 25, 2020

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2023

Completed
Last Updated

September 7, 2022

Status Verified

September 1, 2022

Enrollment Period

3.8 years

First QC Date

February 17, 2020

Last Update Submit

September 5, 2022

Conditions

Keywords

dental implantsantibioticsbonepain

Outcome Measures

Primary Outcomes (1)

  • peri-implant crestal bone change

    variations in mm of the alveolar bone around each implant

    4 months, 1 year

Secondary Outcomes (24)

  • pain severity

    preop and daily for 1 week

  • interferences with daily activities

    daily for 1 week

  • postoperative morbidities A

    1 week, 4 months, 1 year

  • postoperative morbidities B

    1 week, 4 months, 1 year

  • postoperative morbidities F

    4 months, 1 year

  • +19 more secondary outcomes

Study Arms (2)

Test

ACTIVE COMPARATOR

\- 500mg of azithromycin one hour before implant placement

Drug: Azithromycin

control

PLACEBO COMPARATOR

\- identical placebo one hour before implant placement

Drug: Placebo oral tablet

Interventions

azithromycin 500mg one hour before implant placement

Test

identical placebo one hour before implant placement

control

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Periodontally healthy remaining dentition or presenting with mild gingivitis with adequate oral hygiene.
  • Presence of a partially edentulous alveolar ridge that is planned to be restored with no more than 2 implants.
  • To have 1 or 2 implants restored with a crown or fixed bridge.
  • Presence of a non-infected site.
  • Presence of enough bone and soft tissue for the implant to be placed without additional bone augmentation in a 1-stage approach (with healing abutment).
  • Implants 6 mm long or longer.
  • Subjects able and willing to provide written informed consent and comply with study procedures.

You may not qualify if:

  • Subjects taking regular analgesics or antidepressants.
  • Smoking 10 cigarettes/cigars or more per day.
  • Marijuana smokers.
  • Use of vaping devices or e-cigarettes
  • Drug abuse.
  • Completely edentulous individuals.
  • Pregnant and nursing women.
  • Allergies to macrolides, and/or non-steroidal anti-inflammatory analgesics.
  • Active peptic ulcers or susceptibility to peptic ulcers.
  • Any systemic or local immunodeficiency.
  • Any blood coagulation impairment or taking anticoagulants (ex.: Coumadin).
  • Presence of uncontrolled periodontitis or poor oral hygiene.
  • Presence of any acute oral infection.
  • Presence of uncontrolled diabetes or other systemic diseases.
  • Previous radiation therapy in the head and neck area.
  • +5 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Université de Montréal - Faculty of Dentistry - Dental clinics

Montreal, Quebec, H3T 1J4, Canada

RECRUITING

Related Publications (12)

  • Adell R. Tissue integrated prostheses in clinical dentistry. Int Dent J. 1985 Dec;35(4):259-65.

    PMID: 3912327BACKGROUND
  • Ireland RS, Palmer NO, Lindenmeyer A, Mills N. An investigation of antibiotic prophylaxis in implant practice in the UK. Br Dent J. 2012 Oct;213(8):E14. doi: 10.1038/sj.bdj.2012.960.

    PMID: 23099724BACKGROUND
  • Deeb GR, Soung GY, Best AM, Laskin DM. Antibiotic Prescribing Habits of Oral and Maxillofacial Surgeons in Conjunction With Routine Dental Implant Placement. J Oral Maxillofac Surg. 2015 Oct;73(10):1926-31. doi: 10.1016/j.joms.2015.05.024. Epub 2015 Jun 6.

    PMID: 26101074BACKGROUND
  • Braun RS, Chambrone L, Khouly I. Prophylactic antibiotic regimens in dental implant failure: A systematic review and meta-analysis. J Am Dent Assoc. 2019 Jun;150(6):e61-e91. doi: 10.1016/j.adaj.2018.10.015. Epub 2019 Apr 20.

    PMID: 31010572BACKGROUND
  • Esposito M, Grusovin MG, Worthington HV. Interventions for replacing missing teeth: antibiotics at dental implant placement to prevent complications. Cochrane Database Syst Rev. 2013 Jul 31;2013(7):CD004152. doi: 10.1002/14651858.CD004152.pub4.

    PMID: 23904048BACKGROUND
  • Macy E, Contreras R. Health care use and serious infection prevalence associated with penicillin "allergy" in hospitalized patients: A cohort study. J Allergy Clin Immunol. 2014 Mar;133(3):790-6. doi: 10.1016/j.jaci.2013.09.021. Epub 2013 Nov 1.

    PMID: 24188976BACKGROUND
  • Miller RS, Wongsrichanalai C, Buathong N, McDaniel P, Walsh DS, Knirsch C, Ohrt C. Effective treatment of uncomplicated Plasmodium falciparum malaria with azithromycin-quinine combinations: a randomized, dose-ranging study. Am J Trop Med Hyg. 2006 Mar;74(3):401-6.

    PMID: 16525097BACKGROUND
  • Noedl H, Krudsood S, Chalermratana K, Silachamroon U, Leowattana W, Tangpukdee N, Looareesuwan S, Miller RS, Fukuda M, Jongsakul K, Sriwichai S, Rowan J, Bhattacharyya H, Ohrt C, Knirsch C. Azithromycin combination therapy with artesunate or quinine for the treatment of uncomplicated Plasmodium falciparum malaria in adults: a randomized, phase 2 clinical trial in Thailand. Clin Infect Dis. 2006 Nov 15;43(10):1264-71. doi: 10.1086/508175. Epub 2006 Oct 12.

    PMID: 17051490BACKGROUND
  • Gomi K, Yashima A, Iino F, Kanazashi M, Nagano T, Shibukawa N, Ohshima T, Maeda N, Arai T. Drug concentration in inflamed periodontal tissues after systemically administered azithromycin. J Periodontol. 2007 May;78(5):918-23. doi: 10.1902/jop.2007.060246.

    PMID: 17470027BACKGROUND
  • Haffajee AD, Torresyap G, Socransky SS. Clinical changes following four different periodontal therapies for the treatment of chronic periodontitis: 1-year results. J Clin Periodontol. 2007 Mar;34(3):243-53. doi: 10.1111/j.1600-051X.2006.01040.x.

    PMID: 17309596BACKGROUND
  • Giamarellos-Bourboulis EJ. Macrolides beyond the conventional antimicrobials: a class of potent immunomodulators. Int J Antimicrob Agents. 2008 Jan;31(1):12-20. doi: 10.1016/j.ijantimicag.2007.08.001. Epub 2007 Nov 1.

    PMID: 17935949BACKGROUND
  • Tamaoki J, Kadota J, Takizawa H. Clinical implications of the immunomodulatory effects of macrolides. Am J Med. 2004 Nov 8;117 Suppl 9A:5S-11S. doi: 10.1016/j.amjmed.2004.07.023.

    PMID: 15586558BACKGROUND

MeSH Terms

Conditions

Pain

Interventions

Azithromycin

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

ErythromycinMacrolidesPolyketidesLactonesOrganic Chemicals

Study Officials

  • Robert Durand, DMD, MS

    Université de Montréal

    PRINCIPAL INVESTIGATOR
  • Intissar Abbaoui, DDS

    Université de Montréal

    STUDY DIRECTOR

Central Study Contacts

Robert Durand, DMD, MS

CONTACT

Ryma Kabir, DMD, MSc

CONTACT

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: double-masked parallel arm randomized clinical trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

February 17, 2020

First Posted

February 21, 2020

Study Start

February 25, 2020

Primary Completion

December 1, 2023

Study Completion

December 1, 2023

Last Updated

September 7, 2022

Record last verified: 2022-09

Data Sharing

IPD Sharing
Will not share

Locations