NCT04723940

Brief Summary

Management of periprosthetic joint infection (PJI) commonly includes 6 weeks of intravenous (IV) antibiotics after surgical treatment. However, there is little evidence to suggest that oral (PO) therapy results in worse outcomes. This study aims to determine whether or not PO antibiotics are non-inferior to IV antibiotics in treating PJI. The study is a multicenter, parallel-group, randomized (1 : 1), open-label, non-inferiority trial. The non-inferiority margin will be set at 10%. Adults with a clinical diagnosis of PJI according to the International Consensus Meeting (ICM) criteria who would ordinarily receive at least 6 weeks of antibiotics and have received ≤ 7 days of IV therapy from surgery will be included. A total of 308 participants will be centrally computer-randomized to PO or IV antibiotics to complete the first 6 weeks of therapy. Follow-on PO therapy will be permitted in either arm. The primary outcome is the proportion of participants experiencing treatment failure within 1 year. An associated cost-effectiveness evaluation including complications, resource utilization and quality-of-life data will be performed.

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
308

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started Jan 2021

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

January 22, 2021

Completed
3 days until next milestone

Study Start

First participant enrolled

January 25, 2021

Completed
1 day until next milestone

First Posted

Study publicly available on registry

January 26, 2021

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 25, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 25, 2023

Completed
Last Updated

January 26, 2021

Status Verified

January 1, 2021

Enrollment Period

2 years

First QC Date

January 22, 2021

Last Update Submit

January 22, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • Rate of Postoperative Infections

    The investigator will measure the incidence of postoperative infections in participants treated with oral antibiotics versus those treated with intravenous antibiotics

    2 years

Study Arms (2)

Oral Antibiotics

ACTIVE COMPARATOR

Participant will receive 6 weeks of oral antibiotic therapy to treat their infection. The type of antibiotic given will be at the discretion of the infectious disease doctor.

Drug: BactrimDrug: CefadroxilDrug: Doxycycline HclDrug: Clindamycin

Intravenous Antibiotics

ACTIVE COMPARATOR

Participant will receive 6 weeks of intravenous (IV) antibiotic therapy to treat their infection. The type of antibiotic given will be at the discretion of the infectious disease doctor.

Drug: BactrimDrug: CefadroxilDrug: Doxycycline HclDrug: Clindamycin

Interventions

Bactrim will be given for 6 weeks to treat joint infection

Intravenous AntibioticsOral Antibiotics

Cefadroxil will be given for 6 weeks to treat joint infection

Intravenous AntibioticsOral Antibiotics

Doxycycline HCl will given for 6 weeks to treat joint infection

Intravenous AntibioticsOral Antibiotics

Clindamycin will given for 6 weeks to treat joint infection

Intravenous AntibioticsOral Antibiotics

Eligibility Criteria

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

You may qualify if:

  • aged ≥ 18 years
  • willing and able to give informed consent
  • primary THA or TKA diagnosed with PJI based on International Consensus Meeting criteria
  • A sinus communicating with the prosthesis OR
  • Two positive cultures obtained from the prosthesis OR
  • of 5 criteria:
  • Elevated ESR (\>30mm/hr) and CRP (\>10mg/L)
  • Elevated synovial leukocyte count (\>3000 cells/µL) or change of ++ on leukocyte esterase strip
  • Elevated synovial neutrophil percentage (\>80%)
  • One positive culture
  • Positive histological analysis of periprosthetic tissue (\>5 neutrophils per high power field in 5 high power fields x400)
  • PJI treated by debridement and implant retention, or excision of the prosthetic joint (with or without planned reimplantation)
  • received ≤ 7 days of IV therapy after an appropriate surgical intervention

You may not qualify if:

  • Previously treated for native septic arthritis or PJI in the same joint
  • S. aureus bacteremia on presentation or within the previous month
  • clinical, histological or microbiological evidence of mycobacterial, fungal or parasitic etiology of the infection
  • any other concomitant infection that, in the opinion of the clinician responsible for the patient, requires a prolonged course of IV antibiotic therapy (e.g. bacterial endocarditis, mediastinal infection, central nervous system infection)
  • septic shock or systemic features that, in the opinion of the clinician responsible for the patient, requires a course of IV antibiotic therapy (the patient could be re-evaluated if these features resolved)
  • an infection for which there are no suitable antibiotic choices to permit randomization between the two arms of the trial (e.g. when organisms are only sensitive to IV antibiotics or PO antibiotics)
  • unlikely to comply with trial requirements following randomization in the opinion of the investigator

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Rothman Orthopaedic Institute

Philadelphia, Pennsylvania, 19107, United States

Location

MeSH Terms

Interventions

Trimethoprim, Sulfamethoxazole Drug CombinationCefadroxilClindamycin

Intervention Hierarchy (Ancestors)

SulfamethoxazoleBenzenesulfonamidesSulfonamidesAmidesOrganic ChemicalsSulfanilamidesAniline CompoundsAminesBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsSulfonesSulfur CompoundsTrimethoprimPyrimidinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsDrug CombinationsPharmaceutical PreparationsCephalexinCephalosporinsbeta-LactamsLactamsThiazinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingLincomycinLincosamidesPyrrolidinesGlycosidesCarbohydrates

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 22, 2021

First Posted

January 26, 2021

Study Start

January 25, 2021

Primary Completion

January 25, 2023

Study Completion

January 25, 2023

Last Updated

January 26, 2021

Record last verified: 2021-01

Locations