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CompletedNCT04089787CAP5Updated Apr 3, 2025

Shortened Antibiotic Treatment of 5 Days in Community-Acquired Pneumonia

A Phase 4 interventional study of Intervention and Control in Community-acquired Pneumonia, sponsored by Thomas Benfield. Completed at 7 sites in Denmark. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-04-03.

Sponsored by Thomas Benfield · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
395
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

CAP5 is an investigator-initiated multicentre non-inferiority randomized controlled trial which aims to assess the efficacy and safety of shortened antibiotic treatment duration of community-acquired pneumonia (CAP) in hospitalized adult patients based on clinical stability criteria.

Three to five days after initiation of antimicrobial therapy for CAP, participants are randomized 1:1 to parallel treatment arms: 5 days (intervention) or minimum 7 days (control) of antibiotic treatment. The intervention group discontinues antibiotics at day 5 if clinically stable and afebrile for at least 48 hours. The control group receives antibiotics for a duration of 7 days or longer at the discretion of the treating physician.

The primary outcome is 90-day survival which will be tested with a non-inferiority margin of 6%.

02

Conditions studied

  • Community-acquired Pneumonia

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Keywords

  • Community-acquired pneumonia
  • Treatment duration
  • Pneumonia
  • Lung Diseases
  • Respiratory Tract Diseases
  • Respiratory Tract Infections
  • Bacterial Infections
  • Pneumonia, Bacterial
  • Anti-Infective Agents
  • Anti-Bacterial Agents
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In context

Pneumonia

2,044 studies on the registry are indexed under Pneumonia; 283 are open to participants now.

This study's enrollment of 395 is above the median of 106 across 1,247 interventional studies indexed under Pneumonia.

Browse Pneumonia studies →

Lead sponsor

Thomas Benfield is the lead sponsor of 7 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Hospitalized with community-acquired pneumonia; defined as new pulmonary infiltrate on chest X-ray and/or CT scan and at least one symptom compatible with pneumonia (cough, fever, dyspnoea and/or chest pain)
  • Initiation of antibiotics within 12 hours of the time of the chest X-ray with an infiltrate
  • Age ≥ 18 years
  • Afebrile (temperature ≤ 37.8 °C) for 48 hours at randomization
  • Clinically stable at randomization (systolic blood pressure ≥ 90 mm Hg, heart rate ≤ 100/min., respiratory rate ≤ 24/min., peripheral oxygen saturation ≥ 90%)

Exclusion criteria

Exclusion Criteria:

  • Immunosuppression (HIV-positive, neutropenia, corticosteroid treatment (≥10 mg/day of prednisone or the equivalent for >30 days), chemotherapy, immunosuppressive agents, immunosuppressed after solid organ transplantation, asplenia)
  • Hospitalization during the previous 14 days
  • Antibiotic treatment (>2 days) within the past 30 days, directed at lower respiratory tract pathogens
  • Uncommon cause requiring longer duration of antimicrobial therapy (Pseudomonas aeruginosa, Staphylococcus aureus, Mycobacterium spp., fungi)
  • Extrapulmonary infection (e.g. endocarditis, meningitis, or abscess)
  • Pleural empyema or lung abscess
  • Pleural effusion requiring drainage tube
  • Intensive care unit (ICU) admittance
  • Pregnancy and breastfeeding
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
395 participants (actual)

Study arms

  • Experimental
    Intervention group

    Shortened antibiotic treatment of 5 days

    Other: Intervention

  • Active comparator
    Control group

    Antibiotic treatment of 7 days or longer at the discretion of the treating physician

    Other: Control

Interventions

  • OtherIntervention

    Shortened antibiotic treatment of 5 days

  • OtherControl

    Antibiotic treatment of 7 days or longer at the discretion of the treating physician

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What researchers measure

Primary outcomes

  1. 90-day survival

    Time frame: within 90 days

Secondary outcomes

  1. Duration of antibiotic treatment

    Days that the participant receives antibiotic treatment for pneumonia, adding intravenous and oral therapy

    Time frame: within 90 days

  2. Length of hospital stay

    Days from the date of hospital admission for pneumonia to the date of discharge

    Time frame: within 90 days

  3. Antibiotic adverse events

    Number of participants with adverse events with possible relation to the antibiotic treatment of pneumonia

    Time frame: within 90 days

  4. Serious adverse events

    Number of participants with serious adverse events according to International Council of Harmonisation-Good Clinical Practice (ICH-GCP) guidelines

    Time frame: within 90 days

  5. Major complications

    Number of participants with major complications, including pleural effusion, pleural empyema, lung abscess, respiratory failure, severe sepsis, renal failure, use of non-invasive or invasive ventilation, need for vasopressors, and intensive care unit (ICU) admission

    Time frame: within 90 days

  6. Use of antimicrobials after discharge

    Days of antibiotic treatment for any reason after hospital discharge

    Time frame: within 90 days

  7. Post-discharge follow-up visits

    Number of participants with medical visits after hospital discharge, including visits at the outpatient clinic and at the general practitioner

    Time frame: within 90 days

  8. Readmissions

    Number of participants with readmissions for reasons related to or unrelated to pneumonia

    Time frame: days 30 and 90

  9. Mortality

    Number of deaths by any cause

    Time frame: in-hospital, days 30 and 90

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Study locations

7 sites
  • Aalborg University Hospital
    Aalborg, 9000, Denmark
  • Bispebjerg Hospital
    Copenhagen, 2400, Denmark
  • Gentofte Hospital
    Gentofte, 2900, Denmark
  • Herlev Hospital
    Herlev, 2730, Denmark
  • Nordsjællands Hospital
    Hillerød, 3400, Denmark
  • Hvidovre Hospital
    Hvidovre, 2650, Denmark
  • Odense University Hospital
    Odense, 5000, Denmark
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References and documents

Publications

  • Welte T, Torres A, Nathwani D. Clinical and economic burden of community-acquired pneumonia among adults in Europe. Thorax. 2012 Jan;67(1):71-9. doi: 10.1136/thx.2009.129502. Epub 2010 Aug 20. PubMed 20729232 ↗
  • Ramirez JA, Wiemken TL, Peyrani P, Arnold FW, Kelley R, Mattingly WA, Nakamatsu R, Pena S, Guinn BE, Furmanek SP, Persaud AK, Raghuram A, Fernandez F, Beavin L, Bosson R, Fernandez-Botran R, Cavallazzi R, Bordon J, Valdivieso C, Schulte J, Carrico RM; University of Louisville Pneumonia Study Group. Adults Hospitalized With Pneumonia in the United States: Incidence, Epidemiology, and Mortality. Clin Infect Dis. 2017 Nov 13;65(11):1806-1812. doi: 10.1093/cid/cix647. PubMed 29020164 ↗
  • Egelund GB, Jensen AV, Andersen SB, Petersen PT, Lindhardt BO, von Plessen C, Rohde G, Ravn P. Penicillin treatment for patients with Community-Acquired Pneumonia in Denmark: a retrospective cohort study. BMC Pulm Med. 2017 Apr 20;17(1):66. doi: 10.1186/s12890-017-0404-8. PubMed 28427381 ↗
  • Uranga A, Espana PP, Bilbao A, Quintana JM, Arriaga I, Intxausti M, Lobo JL, Tomas L, Camino J, Nunez J, Capelastegui A. Duration of Antibiotic Treatment in Community-Acquired Pneumonia: A Multicenter Randomized Clinical Trial. JAMA Intern Med. 2016 Sep 1;176(9):1257-65. doi: 10.1001/jamainternmed.2016.3633. PubMed 27455166 ↗
  • Aliberti S, Ramirez J, Giuliani F, Wiemken T, Sotgiu G, Tedeschi S, Carugati M, Valenti V, Marchioni M, Camera M, Piro R, Del Forno M, Milani G, Faverio P, Richeldi L, Deotto M, Villani M, Voza A, Tobaldini E, Bernardi M, Bellone A, Bassetti M, Blasi F. Individualizing duration of antibiotic therapy in community-acquired pneumonia. Pulm Pharmacol Ther. 2017 Aug;45:191-201. doi: 10.1016/j.pupt.2017.06.008. Epub 2017 Jun 27. PubMed 28666965 ↗
  • Dunbar LM, Wunderink RG, Habib MP, Smith LG, Tennenberg AM, Khashab MM, Wiesinger BA, Xiang JX, Zadeikis N, Kahn JB. High-dose, short-course levofloxacin for community-acquired pneumonia: a new treatment paradigm. Clin Infect Dis. 2003 Sep 15;37(6):752-60. doi: 10.1086/377539. Epub 2003 Aug 28. PubMed 12955634 ↗
  • el Moussaoui R, de Borgie CA, van den Broek P, Hustinx WN, Bresser P, van den Berk GE, Poley JW, van den Berg B, Krouwels FH, Bonten MJ, Weenink C, Bossuyt PM, Speelman P, Opmeer BC, Prins JM. Effectiveness of discontinuing antibiotic treatment after three days versus eight days in mild to moderate-severe community acquired pneumonia: randomised, double blind study. BMJ. 2006 Jun 10;332(7554):1355. doi: 10.1136/bmj.332.7554.1355. PubMed 16763247 ↗
  • Torres A, Muir JF, Corris P, Kubin R, Duprat-Lomon I, Sagnier PP, Hoffken G. Effectiveness of oral moxifloxacin in standard first-line therapy in community-acquired pneumonia. Eur Respir J. 2003 Jan;21(1):135-43. doi: 10.1183/09031936.03.00045202. PubMed 12570122 ↗
  • File TM Jr, Mandell LA, Tillotson G, Kostov K, Georgiev O. Gemifloxacin once daily for 5 days versus 7 days for the treatment of community-acquired pneumonia: a randomized, multicentre, double-blind study. J Antimicrob Chemother. 2007 Jul;60(1):112-20. doi: 10.1093/jac/dkm119. Epub 2007 May 30. PubMed 17537866 ↗
  • Tamma PD, Avdic E, Li DX, Dzintars K, Cosgrove SE. Association of Adverse Events With Antibiotic Use in Hospitalized Patients. JAMA Intern Med. 2017 Sep 1;177(9):1308-1315. doi: 10.1001/jamainternmed.2017.1938. PubMed 28604925 ↗
  • Huttner A, Harbarth S, Carlet J, Cosgrove S, Goossens H, Holmes A, Jarlier V, Voss A, Pittet D. Antimicrobial resistance: a global view from the 2013 World Healthcare-Associated Infections Forum. Antimicrob Resist Infect Control. 2013 Nov 18;2:31. doi: 10.1186/2047-2994-2-31. eCollection 2013. PubMed 24237856 ↗
  • Pollack LA, Srinivasan A. Core elements of hospital antibiotic stewardship programs from the Centers for Disease Control and Prevention. Clin Infect Dis. 2014 Oct 15;59 Suppl 3(Suppl 3):S97-100. doi: 10.1093/cid/ciu542. PubMed 25261548 ↗
  • Madaras-Kelly KJ, Burk M, Caplinger C, Bohan JG, Neuhauser MM, Goetz MB, Zhang R, Cunningham FE; Pneumonia Duration of Therapy Medication Utilization Evaluation Group. Total duration of antimicrobial therapy in veterans hospitalized with uncomplicated pneumonia: Results of a national medication utilization evaluation. J Hosp Med. 2016 Dec;11(12):832-839. doi: 10.1002/jhm.2648. Epub 2016 Aug 16. PubMed 27527659 ↗
  • Aliberti S, Blasi F, Zanaboni AM, Peyrani P, Tarsia P, Gaito S, Ramirez JA. Duration of antibiotic therapy in hospitalised patients with community-acquired pneumonia. Eur Respir J. 2010 Jul;36(1):128-34. doi: 10.1183/09031936.00130909. Epub 2009 Nov 19. PubMed 19926738 ↗
  • Li JZ, Winston LG, Moore DH, Bent S. Efficacy of short-course antibiotic regimens for community-acquired pneumonia: a meta-analysis. Am J Med. 2007 Sep;120(9):783-90. doi: 10.1016/j.amjmed.2007.04.023. PubMed 17765048 ↗
  • Dimopoulos G, Matthaiou DK, Karageorgopoulos DE, Grammatikos AP, Athanassa Z, Falagas ME. Short- versus long-course antibacterial therapy for community-acquired pneumonia : a meta-analysis. Drugs. 2008;68(13):1841-54. doi: 10.2165/00003495-200868130-00004. PubMed 18729535 ↗
  • Mandell LA, Wunderink RG, Anzueto A, Bartlett JG, Campbell GD, Dean NC, Dowell SF, File TM Jr, Musher DM, Niederman MS, Torres A, Whitney CG; Infectious Diseases Society of America; American Thoracic Society. Infectious Diseases Society of America/American Thoracic Society consensus guidelines on the management of community-acquired pneumonia in adults. Clin Infect Dis. 2007 Mar 1;44 Suppl 2(Suppl 2):S27-72. doi: 10.1086/511159. No abstract available. PubMed 17278083 ↗
  • Schrag SJ, Pena C, Fernandez J, Sanchez J, Gomez V, Perez E, Feris JM, Besser RE. Effect of short-course, high-dose amoxicillin therapy on resistant pneumococcal carriage: a randomized trial. JAMA. 2001 Jul 4;286(1):49-56. doi: 10.1001/jama.286.1.49. PubMed 11434826 ↗
  • Chastre J, Wolff M, Fagon JY, Chevret S, Thomas F, Wermert D, Clementi E, Gonzalez J, Jusserand D, Asfar P, Perrin D, Fieux F, Aubas S; PneumA Trial Group. Comparison of 8 vs 15 days of antibiotic therapy for ventilator-associated pneumonia in adults: a randomized trial. JAMA. 2003 Nov 19;290(19):2588-98. doi: 10.1001/jama.290.19.2588. PubMed 14625336 ↗
  • File TM Jr. Clinical efficacy of newer agents in short-duration therapy for community-acquired pneumonia. Clin Infect Dis. 2004 Sep 1;39 Suppl 3:S159-64. doi: 10.1086/421354. PubMed 15546111 ↗
  • Guillemot D, Carbon C, Balkau B, Geslin P, Lecoeur H, Vauzelle-Kervroedan F, Bouvenot G, Eschwege E. Low dosage and long treatment duration of beta-lactam: risk factors for carriage of penicillin-resistant Streptococcus pneumoniae. JAMA. 1998 Feb 4;279(5):365-70. doi: 10.1001/jama.279.5.365. PubMed 9459469 ↗
  • Halm EA, Fine MJ, Marrie TJ, Coley CM, Kapoor WN, Obrosky DS, Singer DE. Time to clinical stability in patients hospitalized with community-acquired pneumonia: implications for practice guidelines. JAMA. 1998 May 13;279(18):1452-7. doi: 10.1001/jama.279.18.1452. PubMed 9600479 ↗
  • Menendez R, Torres A, Rodriguez de Castro F, Zalacain R, Aspa J, Martin Villasclaras JJ, Borderias L, Benitez Moya JM, Ruiz-Manzano J, Blanquer J, Perez D, Puzo C, Sanchez-Gascon F, Gallardo J, Alvarez CJ, Molinos L; Neumofail Group. Reaching stability in community-acquired pneumonia: the effects of the severity of disease, treatment, and the characteristics of patients. Clin Infect Dis. 2004 Dec 15;39(12):1783-90. doi: 10.1086/426028. Epub 2004 Nov 18. PubMed 15578400 ↗
  • Choudhury G, Mandal P, Singanayagam A, Akram AR, Chalmers JD, Hill AT. Seven-day antibiotic courses have similar efficacy to prolonged courses in severe community-acquired pneumonia--a propensity-adjusted analysis. Clin Microbiol Infect. 2011 Dec;17(12):1852-8. doi: 10.1111/j.1469-0691.2011.03542.x. Epub 2011 Sep 15. PubMed 21919994 ↗

Study documents

  • Statistical analysis plan · Oct 21, 2019

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — Trial data will be made available in anonymous form at public clinical trial databases when the trial has ended. Anonymized patient-level data and other detailed information will be provided by reasonable request to the principal investigator.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 3, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04089787
Lead sponsor
Thomas Benfield
Responsible party
Thomas Benfield (Clinical Professor, Hvidovre University Hospital) — Sponsor-investigator
First posted
Sep 13, 2019
Start date
Sep 18, 2019
Primary completion
Jan 22, 2025
Completion
Jan 22, 2025
Last update
Apr 3, 2025

Study contacts

Simone Bastrup Israelsen, MD
principal investigator · Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

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