NCT05530551

Brief Summary

Aim: To compare the effect of one single dose versus multiple doses of prophylactic antibiotics administered within 24 hours, on the development of PJI in patients with osteoarthritis undergoing primary THA. The study is designed as a cross-over, cluster randomized, non-inferiority trial. All Danish orthopedic surgery departments performing primary THA with the majority being within inclusion criteria will be involved: Based on national quality databases, two-year cohorts of approximately 20,000 primary THAs conducted at all public and private orthopedic departments in Denmark, this includes 36 sites corresponding to a total of 39 departments.

Trial Health

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Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
20,000

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2022

Typical duration for not_applicable

Geographic Reach
1 country

36 active sites

Status
active not recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 30, 2022

Completed
2 days until next milestone

Study Start

First participant enrolled

September 1, 2022

Completed
6 days until next milestone

First Posted

Study publicly available on registry

September 7, 2022

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2025

Completed
Last Updated

March 5, 2025

Status Verified

February 1, 2025

Enrollment Period

2.5 years

First QC Date

August 30, 2022

Last Update Submit

February 28, 2025

Conditions

Keywords

Antibiotic ProphylaxisOAOsteoarthritisOsteoarthritis, HipTotal Hip ReplacementTotal Hip ArthroplastyProsthetic Joint InfectionPJICluster Randomized Controlled TrialRandomized Controlled TrialRCTTHA

Outcome Measures

Primary Outcomes (1)

  • Incidence of Prosthetic joint infections (PJI)

    The definition of PJI is based on revision surgery. Revision surgery is defined as a new surgical intervention the first time after the primary intervention including debridement alone or in combination with complete or partial removal or exchange of the implant. 1. Two or more intraoperative deep-tissue samples of phenotypically indistinguishable bacteria isolated from at least 3 deep-tissue samples 2. One or more positive intraoperative samples from a closed fluid aspirate AND a biopsy (fluid AND tissue) of phenotypically indistinguishable bacteria isolated 3. A PJI when an indication of deep infection is reported to The Danish Hip Arthroplasty Registry (DHR) by the surgeon upon revision surgery

    Within 90 days from index surgery

Secondary Outcomes (9)

  • Number of patients with one or more Serious Adverse Events (SAEs)

    Within 90 days from index surgery

  • Incidence of Potential PJI referred to as PJI-likely

    Within 90 days from index surgery

  • Length of hospital stay (LOS)

    Within 90 days from index surgery

  • Incidence of Major Adverse Cardiovascular Events (MACE)

    Within 90 days from index surgery

  • Hospital-treated infections (excluding Surgical Site infections)

    Within 90 days from index surgery

  • +4 more secondary outcomes

Other Outcomes (4)

  • Incremental cost-effectiveness

    Within 90 days from index surgery

  • Rate of revision after THA

    Within 1 year from index surgery

  • Mortality rate after index surgery

    Within 1 year from index surgery

  • +1 more other outcomes

Study Arms (2)

Treatment A, Single-dose practice

EXPERIMENTAL

One preoperative single dose of either Dicloxacillin/Cloxacillin 2g OR Cefuroxime 1.5g administered intravenously prior to surgical incision. As the study is a non-inferiority trial, we have chosen the Experimental design category.

Other: Antibiotic dosage practice

Treatment B, Multiple-dose practice

ACTIVE COMPARATOR

One preoperative dose of either Dicloxacillin/Cloxacillin 2g OR Cefuroxime 1.5g administered intravenously prior to surgical incision followed by 3 postoperative doses of Dicloxacillin/Cloxacillin 1g x 3 OR Cefuroxime 750mg x 3 within 24 hours after the preoperative dose.

Other: Antibiotic dosage practice

Interventions

Patient inclusion starts day one, cross-over of departments from treatment A (single-dose) to B (multiple-dose) or vice versa after one year and end of inclusion happens after 2 years. All centers in Denmark use either Cloxacillin/Dicloxacillin, Cefuroxime or both drugs as standard prophylactic antibiotic practice for THA. In cases of cephalosporin allergy or general beta lactam allergy, the antibiotic clindamycin may be administered. In this trial, patients will be administered the standard prophylactic antibiotic practice of either single-dose (A) or multiple-doses (B) of antibiotics administered at each respective cluster that respective year. Both practices of dose administration for antibiotic prophylaxis (i.e. single- or multiple-dose) follow current standards of treatment and are based on present clinical practice guidelines.

Treatment A, Single-dose practiceTreatment B, Multiple-dose practice

Eligibility Criteria

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

You may qualify if:

  • \. All patients receiving a primary Total Hip Arthroplasty (THA) due to primary and secondary causes of osteoarthritis

You may not qualify if:

  • Patients receiving a primary THA due to either acute or sequelae of proximal femoral or acetabular fractures
  • Patients receiving a primary THA due to bone tumor or metastasis

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (36)

Department of Orthopedic Surgery, Hospital of Southern Jutland, Aabenraa and Sønderborg

Aabenraa, 6200/6400, Denmark

Location

Capio Private Hospital, Aalborg

Aalborg, 9000, Denmark

Location

Department of Orthopedic Surgery, Aalborg, Aalborg University Hospital

Aalborg, 9000, Denmark

Location

Aleris Private Hospital, Aarhus

Aarhus, 8200, Denmark

Location

Deaprtment of Orthopaedic Surgery, Aarhus University Hospital

Aarhus, 8200, Denmark

Location

Capio Private Hospital, Aarhus

Aarhus C, 8000, Denmark

Location

Capio Private Hospital, Gildhøj

Brøndby, 2605, Denmark

Location

Department of Orthopedic Surgery and Traumatology, Bispebjerg, Copenhagen University Hospital - Bispebjerg and Frederiksberg

Copenhagen NV, 2400, Denmark

Location

Adeas Private Hospital, Parken

Copenhagen Ø, 2100, Denmark

Location

Department of Orthopedic Surgery, Esbjerg, Hospital of South West Jutland

Esbjerg, 6700, Denmark

Location

Department of Orthopedic Surgery, Farsø, Aalborg University Hospital

Farsø, 9640, Denmark

Location

CPH Private Hospital

Farum, 3520, Denmark

Location

Department of Orthopedic Surgery, Frederikshavn, Aalborg University Hospital

Frederikshavn, 9900, Denmark

Location

Department of Orthopedic Surgery, Grindsted, Hospital of South West Jutland

Grindsted, 7200, Denmark

Location

Capio Private Hospital, Hellerup and Odense

Hellerup, 2900/5000, Denmark

Location

Department of Orthopaedic Surgery, Gentofte, Copenhagen University Hospital - Herlev and Gentofte

Hellerup, 2900, Denmark

Location

Department of Orthopaedic Surgery, Herlev, Copenhagen University Hospital - Herlev and Gentofte

Herlev, 2730, Denmark

Location

Department of Orthopedic Surgery, Gødstrup Regional Hospital

Herning, 7400, Denmark

Location

Department of Orthopedic Surgery, Hillerød, Copenhagen University Hospital - North Zealand

Hillerød, 3400, Denmark

Location

Department of Orthopedic Surgery, Copenhagen University Hospital - Holbæk

Holbæk, 4300, Denmark

Location

Department of Orthopedic Surgery, Horsens Regional Hospital, Denmark

Horsens, 8700, Denmark

Location

Department of Orthopedic Surgery, Hvidovre, Copenhagen University Hospital - Amager and Hvidovre

Hvidovre, 2650, Denmark

Location

Acure Private Hospital

Kongens Lyngby, 2800, Denmark

Location

Kollund Private Hospital, Kollund

Kruså, 6340, Denmark

Location

Department of Orthopedic Surgery, Zealand University Hospital, Køge

Køge, 4600, Denmark

Location

Department of Orthopedic Surgery, Copenahegn University Hospital - Nykøbing F

Nykøbing Falster, 4800, Denmark

Location

Department for Planned Orthopaedic Surgery, Næstved, Copenhagen University Hospital - Næstved, Slagelse and Ringsted

Næstved, 4700, Denmark

Location

Department of Orthopedic Surgery and Traumatology, Odense University Hospital and Svendborg Hospital

Odense, 5000/5700, Denmark

Location

Deparmtent of Orthopedic Surgery, Randers Regional Hospital

Randers, 8930, Denmark

Location

Aleris Private Hospital, Ringsted

Ringsted, 4100, Denmark

Location

Department of Surgery, Copenhagen University Hospital - Bornholm

Rønne, 3700, Denmark

Location

Center for Planned Surgery, Silkeborg Regional Hospital

Silkeborg, 8600, Denmark

Location

Aleris Private Hospital, Søborg

Søborg, 2860, Denmark

Location

Department of Orthopedics, Lillebaelt Hospital, Vejle

Vejle, 7100, Denmark

Location

Mølholm Private Hospital, Vejle

Vejle, 7100, Denmark

Location

Deparmtent of Orthopedic Sugery, Viborg Regional Hospital

Viborg, 8800, Denmark

Location

Related Publications (1)

  • Abedi AA, Varnum C, Pedersen AB, Gromov K, Hallas J, Iversen P, Jakobsen T, Jimenez-Solem E, Kidholm K, Kjerulf A, Lange J, Odgaard A, Rosenvinge FS, Solgaard S, Sperling K, Stegger M, Christensen R, Overgaard S. Effect of single versus multiple prophylactic antibiotic doses on prosthetic joint infections following primary total hip arthroplasty in patients with osteoarthritis at public and private hospitals in Denmark: protocol for a nationwide cross-over, cluster randomised, non-inferiority trial [The Pro-Hip-Quality Trial]. BMJ Open. 2023 Aug 21;13(8):e071487. doi: 10.1136/bmjopen-2022-071487.

MeSH Terms

Conditions

Osteoarthritis, HipOsteoarthritis

Condition Hierarchy (Ancestors)

ArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Study Officials

  • Armita A Abedi, MD

    Copenhagen University Hospital Bispebjerg, Department of Orthopaedic Surgery and Traumatology

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
Blinding will not be applicable, because it is considered infeasible to expose participants and clinical personnel to this in either of the groups since any specific clinic will follow their allocated specific (single- or multiple-dose) routine during an entire 1-year period and their routine treatment of any complication (before switching).
Purpose
PREVENTION
Intervention Model
CROSSOVER
Model Details: The Pro-Hip-Quality Trial is a Cluster Randomized Trial with an embedded Cross-Over Design where each clinical center (C: 1, 2, 3, …., 36 individual sites) will be running a specific intervention (i.e. single- or multiple-dose antibiotics) throughout 12 months, and the subsequent year the clinical department will automatically switch to the opposite intervention (i.e. multiple- or single-dose antibiotics).
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Clinical Professor, DMSc

Study Record Dates

First Submitted

August 30, 2022

First Posted

September 7, 2022

Study Start

September 1, 2022

Primary Completion

March 1, 2025

Study Completion

March 1, 2025

Last Updated

March 5, 2025

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will share

Access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), will be provided to anyone who wishes to access the data.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
Immediately following publication, no end date.
Access Criteria
Anyone who wishes to access the data.

Locations