Procalcitonin guided reduction of the duration of antibiotic therapy in Community Acquired Pneumonia

ISRCTN ISRCTN04176397
DOI https://doi.org/10.1186/ISRCTN04176397
Secondary identifying numbers EKBB 232/03
Submission date
18/01/2005
Registration date
15/02/2005
Last edited
19/11/2007
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Respiratory
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Prof Beat Muller
Scientific

University Hospital
Petersgraben 4
Basel
4031
Switzerland

Phone +41 (0)61 265 2525
Email Happy.Mueller@unibas.ch

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Scientific title
Study acronymProCAP-Study/ProResp II-Study
Study objectivesIn patients with Community Acquired Pneumonia (CAP), guidelines recommend antibiotic treatment for 7 to 21 days. Procalcitonin is elevated in bacterial infections, and its dynamics have prognostic implications.

Objective:
To assess procalcitonin guidance for the initiation and duration of antibiotic therapy in community-acquired pneumonia.

Hypothesis:
Procalcitonin guidance could significantly shorten antibiotic duration with a similar clinical and laboratory outcome.
Ethics approval(s)The study was approved by the institutional review board of University Hospital Basel. Written, informed consent was obtained from all included patients or their legal representatives.
Health condition(s) or problem(s) studiedCommunity Acquired Pneumonia (CAP)
InterventionControl group:
Receive antibiotics according to usual practice.

Intervention group:
In the procalcitonin group, antibiotic treatment was based on serum procalcitonin concentrations as follows:
1. Strongly discouraged: less than 0.1 µg/L
2. Discouraged: less than 0.25 µg/L
3. Encouraged: greater than 0.25 µg/L
4. Strongly encouraged: greater than 0.5 µg/L

Reevaluation of the clinical status and measurement of serum procalcitonin levels was recommended after 6 - 24 hours in all patients from whom antibiotics were withheld. Procalcitonin levels were reassessed after 4, 6, and 8 days. Antibiotics were discontinued on the basis of the procalcitonin cutoffs defined above. In patients with very high procalcitonin values on admission (e.g., greater than 10 µg/L), discontinuation of antibiotics was encouraged if levels decreased to levels less than 10% of the initial value (e.g., 1 µg/L, instead of less than 0.25 µg/L).
Intervention typeOther
Primary outcome measureTotal antibiotic use, recorded on days 4, 6, and 8 and at follow-up after 6 weeks.
Secondary outcome measuresMeasures of laboratory and clinical outcomes, recorded on days 4, 6, and 8 and at follow-up after 6 weeks.
Overall study start date01/01/2004
Completion date31/12/2005

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants250
Key inclusion criteriaThe criterion for inclusion in the study was a suspected CAP as the main diagnosis. This was defined as presence of a new infiltrate on chest X-ray accompanied by one or several acquired respiratory symptoms and signs:
1. Cough
2. Sputum production
3. Dyspnoea
4. Fever over 38.0°C
5. Auscultatory findings of abnormal breath sounds and rales
6. Leukocytosis more than 10 x 10^9 cells/L or leukopenia less than 4 x 10^9 cells/L in the absence of a hospital stay within 14 days before admission
Key exclusion criteria1. Cystic fibrosis or active tuberculosis
2. Immunocompromised patients, i.e. patients infected with Human Immunodeficiency Virus (HIV) infection and a CD4 count below 200
3. Neutropenic patients with a neutrophil count less than 500 x 10^9/ml
4. Under chemotherapy with neutrophils 500 - 1000 x 10^9/ml with an expected decrease to values less than 500 x 10^9/ml
5. Immunosuppressive therapy after bone marrow or solid organ transplantation
6. Nosocomial pneumonia
Date of first enrolment01/01/2004
Date of final enrolment31/12/2005

Locations

Countries of recruitment

  • Switzerland

Study participating centre

University Hospital
Basel
4031
Switzerland

Sponsor information

University Hospital Basel (Switzerland)
Hospital/treatment centre

Petersgraben 4
Basel
4031
Switzerland

Phone +41 (0)61 265 2525
Email Happy.Mueller@unibas.ch
Website http://www.universitaetsspital-basel.ch/
ROR logo "ROR" https://ror.org/04k51q396

Funders

Funder type

Hospital/treatment centre

University Hospital Basel (Switzerland):

No information available

1. Clinic of Pulmonary Medicine

No information available

2. Clinic of Endocrinology

No information available

3. Emergency Unit

No information available

4. Department of Internal Medicine

No information available

5. Department of Central Laboratories (infrastructure)

No information available

BRAHMS AG (Germany) - assay material

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 28/06/2006 Yes No
Other publications 01/07/2006 Yes No
Other publications 01/11/2007 Yes No