NCT04216277

Brief Summary

Antimicrobial resistance rates have reached alarming levels and the Worlds Health Organisation (WHO) states it constitutes a serious public health concern by threatening one of the most effective and mortality lowering interventions in modern medicine. Part of the solution to this problem includes minimizing overuse of antibiotics. But clinical signs alone are often not reliable to guide antibiotic treatment decisions and additional tests may be warranted to assist the doctor. Such tests include point-of-care biomarkers of infection like C-reactive protein (CRP) and procalcitonin (PCT). Targeting antibiotic use to the few patients with a high probability of benefit and withholding in the many with non-serious respiratory infection is a promising strategy and readily implemented in clinical practice. The Procalcitonin guided Antibiotics in Respiratory Infections (PARI) study will assess the effect of a novel point-of-care PCT guided antibiotic stewardship in acute respiratory tract infections in general practice. The overall aim of the PARI study is to reduce antibiotic use in patients with acute respiratory tract infections by targeting antibiotic treatment only to patients with a suspected bacterial etiology and thus likely to benefit from antibiotic therapy. The main research questions are: Does the addition of a point-of-care Procalcitonin test to standard care reduce antibiotic use in primary care? Is the intervention safe for the patients? The PARI study is a pragmatic two-arm (intervention and control (standard care) open randomized non-inferiority trial (up to 1 day difference in recovery) in general practice.

Trial Health

30
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Timeline
Completed

Started Feb 2020

Typical duration for not_applicable

Geographic Reach
1 country

6 active sites

Status
withdrawn

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

December 12, 2019

Completed
21 days until next milestone

First Posted

Study publicly available on registry

January 2, 2020

Completed
2 months until next milestone

Study Start

First participant enrolled

February 27, 2020

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2022

Completed
Last Updated

March 27, 2023

Status Verified

March 1, 2023

Enrollment Period

2.4 years

First QC Date

December 12, 2019

Last Update Submit

March 23, 2023

Conditions

Keywords

primary careacute respiratory tract infectionProcalcitoningeneral practiceAntibiotic use

Outcome Measures

Primary Outcomes (1)

  • Duration of illness and symptoms from acute respiratory tract infections.

    The patient reported primary outcome will be assessed as number of days to a patient's daily activities (work or recreation) are no longer restricted by symptoms from a respiratory tract infection.The non-inferiority margin between the intervention and control group is set at a one day difference. The recovery measure will be the specific day indicated by the participants using the validated Acute Respiratory Tract Infections Questionaire (ARTIQ).

    up to 14 days

Secondary Outcomes (5)

  • Antibiotic treatments

    1, 14 and 30 days

  • Side effects from antibiotic treatment

    14 days

  • re-consultations

    30 days

  • Severe adverse effects

    30 days

  • Biomarker levels

    day 1

Study Arms (2)

Procalcitonin in addition to usual care

EXPERIMENTAL

Procalcitonin values will be disclosed to the attending physician and assist in antibiotic guidance in addition to usual care

Diagnostic Test: Procalcitonin

Usual care

NO INTERVENTION

Usual best standard care. No procalcitonin values disclosed to attending physician .

Interventions

ProcalcitoninDIAGNOSTIC_TEST

In addition to usual care diagnostic and handling of acute respiratory tract infections in general practice to attending physician in the intervention arm has access to antibiotic stewardship by a procalcitonin point-of-care test. The following criteria for initiating og withholding antibiotics will be used. * Antibiotics treatment is recommended with Procalcitonin levels above 0.25 ng/ml * Antibiotic treatment is discouraged if Procalcitonin levels are below 0.25 ng/ml

Procalcitonin in addition to usual care

Eligibility Criteria

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

You may qualify if:

  • Age above 18 years
  • Able to read and understand patient information about the PARI trial and willing to give written informed consent prior to enrollment
  • Acute cough e.g. less than 2 weeks probable acute upper or lower respiratory tract infection (pharyngitis, tonsillitis, otitis media, sinusitis, exacerbations of asthma or Chronic Obstructive Pulmonary Disease (COPD), bronchitis or pneumonia)
  • C-Reactive Protein \>20 mg/m

You may not qualify if:

  • Symptoms present for more than 2 weeks
  • Verified immunodeficiency or presently neutropenic (neutrophile granulocytes ≤0,5 x 109/L within the last 7 days)
  • Severe liver failure
  • Severe kidney failure including dialysis
  • Sore throat and positive test for Group A streptococcus
  • Need for acute admission to hospital
  • Pregnancy or breastfeeding

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (6)

Lægerne Finne, Riise og Aabenhus

Copenhagen, 1620, Denmark

Location

Amagercentrets læger

Copenhagen, 2300, Denmark

Location

Mit Lægehus

Copenhagen, 2610, Denmark

Location

Haslev Lægecenter

Haslev, 4690, Denmark

Location

Næstved Lægecenter

Næstved, 4700, Denmark

Location

Rønnede lægehus

Rønnede, 4683, Denmark

Location

Related Publications (1)

  • Filipsen N, Bro H, Bjerrum L, Jensen JS, Aabenhus R. The Procalcitonin-guided Antibiotics in Respiratory Infections (PARI) project in general practice - a study protocol. BMC Prim Care. 2022 Mar 12;23(1):43. doi: 10.1186/s12875-022-01646-6.

Study Officials

  • Lars Bjerrum, PhD

    Department of Public Health, Copenhagen University, Denmark

    STUDY CHAIR
0

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Procalcitonin will be measured on all participants but none of the participants will be informed about the results of the procalcitonin value or the randomisation and thus remain unaware of allocated group status (intervention or control).
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD. Specialist in General Practice, PhD, Assistent Professor

Study Record Dates

First Submitted

December 12, 2019

First Posted

January 2, 2020

Study Start

February 27, 2020

Primary Completion

August 1, 2022

Study Completion

August 1, 2022

Last Updated

March 27, 2023

Record last verified: 2023-03

Data Sharing

IPD Sharing
Will share

work in progress

Shared Documents
STUDY PROTOCOL, SAP, ANALYTIC CODE
Time Frame
Upon publication of study results

Locations