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Endocarditis InfectiveNCT05791357

The Role of Polymerase Chain Reaction in the Management of Patients With Infective Endocarditis

A study testing PCR (Polymerase Chain Reaction) targeting the 16 ribosomal DNA in people with Endocarditis Infective, run by Fondazione Policlinico Universitario Agostino Gemelli IRCCS at 2 sites in Italy.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of this study is to prospectively investigate the additional diagnostic value of broad range PCR targeting the 16 ribosomal DNA in diagnosis and management of patients with infective endocarditis who are candidate for surgicaltherapy; Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Endocarditis Infective
What is being tested?
PCR (Polymerase Chain Reaction) targeting the 16 ribosomal DNA
Could I receive a placebo?
No, everyone receives an active treatment
How many people
100 participants
Where
2 sitesItaly
Study dates
1 Apr 2020to 31 Oct 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • patients older than 18 years, with diagnosis of IE on a native or prosthetic valve and with a surgical indication for heart valve replacement using extracorporeal circulation (CPB).
  • patients who have signed informed consent to the partecipation of the study

Who cannot join

  • patients younger than 18 years
  • Failure to sign consent for personal data processing and/or study participation
  • Participation in other experimental studies
  • Patients who did not complete the examinations under study (culture test on blood and excised valve, molecular tests)

Trial locations and contacts

2 sites in 1 country.

Italy2 sites
  • IRCCS Fondazione Policlinico Universitario Agostino Gemelli

    Roma, 00168

  • Policlinico Agostino Gemelli

    Roma, 00168

Other trials in Italy

About this study

Official title: The Role of Polymerase Chain Reaction in the Management of Patients With Infective Endocarditis: Modern Diagnostic and Therapeutic Concepts

The aim of this study is to prospectively investigate the additional diagnostic value of broad range PCR targeting the 16 ribosomal DNA in diagnosis and management of patients with infective endocarditis who are candidate for surgicaltherapy;

Read the detailed description

Study protocol is divided into four different phases:screening, pre-operative clinical assessment (T-1), cardiac surgery (T0) and follow-up period (T4 eT90).

During the screening phase, patients will be assessed to determine whether they met the study inclusion/exclusion criteria. After signing the informed consent, patients will go through a preoperative clinical evaluation (T-1). The following assessments are carried out the day before surgery: recording patient's generality, present antibiotic therapy and possible results of blood cultures performed prior to recruitment; - Twelve-lead ECG; - chest X-ray - transthoracic echocardiogram (TTE); -. three pairs of blood cultures from three different blood sampling sites. In cases of complicated endocarditis, the presence and location of septic embolisms is recorded (using Total body CT scan imaging), signs of heart failure evaluated and operability criteria are assessed. On the day of cardiac surgery (T0), main intraoperative data (valve findings, type of prosthesis, surgery time, cardiopulmonary bypass time and aortic cross clamping time) will be gathered; the excised valve was sent partly to the microbiology laboratory for culture and molecular tests and partly to the pathology Laboratory.

After cardiac surgery, patients continued to be monitored for a follow up at four (T4) and 90 (T90) days after surgery. During the follow-up period, information was collected on the patient's clinical status (vital parameters) and the antibiotic treatment performed. The same blood tests performed at T-1 are repeated at T4 and T90. All this data was recorded on a dedicated database.

Being tested
PCR (Polymerase Chain Reaction) targeting the 16 ribosomal DNA
Medical subject headings
Endocarditis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PCR (Polymerase Chain Reaction) targeting the 16 ribosomal DNADiagnostic test

    Molecular diagnostic using a broad range PCR on obtained histological material (native valve/valve prosthesis/fragments of them)

Study groups in NCT05791357
Study groupRoleWhat they receive
Endocarditis patientsExperimentalPatients with endocarditis who respect including criteria
Receives: Diagnostic Test: PCR (Polymerase Chain Reaction) targeting the 16 ribosomal DNA

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Impact of molecular diagnostic tests on the identification of microorganisms

    number of patients with positive blood cultures vs number of patients with negative blood cultures but with positive molecular diagnostic tests

    Measured: through study completion, an average of 1 year

  2. number of microorganism isolated

    number of microorganism isolated through molecular diagnostic tests

    Measured: through study completion, an average of 1 year

Secondary outcomes (1)
  1. Impact of molecular diagnostic tests on antibiotic therapy

    Number of patients with IE in which antibiotic therapy change because of the results of molecular diagnostic tests

    Measured: through study completion, an average of 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Mar 2023
  2. Study start1 Apr 2020
  3. Primary completion31 May 2024
  4. Study completion31 Oct 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
100 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05791357
Sponsor's protocol ID
3451
Status last verified
Feb 2024
First submitted
27 Feb 2023
Last updated
15 Aug 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Cahill TJ, Baddour LM, Habib G, Hoen B, Salaun E, Pettersson GB, Schafers HJ, Prendergast BD. Challenges in Infective Endocarditis. J Am Coll Cardiol. 2017 Jan 24;69(3):325-344. doi: 10.1016/j.jacc.2016.10.066.

    PubMed 28104075
  • Habib G, Lancellotti P, Antunes MJ, Bongiorni MG, Casalta JP, Del Zotti F, Dulgheru R, El Khoury G, Erba PA, Iung B, Miro JM, Mulder BJ, Plonska-Gosciniak E, Price S, Roos-Hesselink J, Snygg-Martin U, Thuny F, Tornos Mas P, Vilacosta I, Zamorano JL; ESC Scientific Document Group. 2015 ESC Guidelines for the management of infective endocarditis: The Task Force for the Management of Infective Endocarditis of the European Society of Cardiology (ESC). Endorsed by: European Association for Cardio-Thoracic Surgery (EACTS), the European Association of Nuclear Medicine (EANM). Eur Heart J. 2015 Nov 21;36(44):3075-3128. doi: 10.1093/eurheartj/ehv319. Epub 2015 Aug 29. No abstract available.

    PubMed 26320109
  • Baddour LM, Wilson WR, Bayer AS, Fowler VG Jr, Tleyjeh IM, Rybak MJ, Barsic B, Lockhart PB, Gewitz MH, Levison ME, Bolger AF, Steckelberg JM, Baltimore RS, Fink AM, O'Gara P, Taubert KA; American Heart Association Committee on Rheumatic Fever, Endocarditis, and Kawasaki Disease of the Council on Cardiovascular Disease in the Young, Council on Clinical Cardiology, Council on Cardiovascular Surgery and Anesthesia, and Stroke Council. Infective Endocarditis in Adults: Diagnosis, Antimicrobial Therapy, and Management of Complications: A Scientific Statement for Healthcare Professionals From the American Heart Association. Circulation. 2015 Oct 13;132(15):1435-86. doi: 10.1161/CIR.0000000000000296. Epub 2015 Sep 15.

    PubMed 26373316
  • Pant S, Patel NJ, Deshmukh A, Golwala H, Patel N, Badheka A, Hirsch GA, Mehta JL. Trends in infective endocarditis incidence, microbiology, and valve replacement in the United States from 2000 to 2011. J Am Coll Cardiol. 2015 May 19;65(19):2070-6. doi: 10.1016/j.jacc.2015.03.518.

    PubMed 25975469
  • Habib G, Lancellotti P, Erba PA, Sadeghpour A, Meshaal M, Sambola A, Furnaz S, Citro R, Ternacle J, Donal E, Cosyns B, Popescu B, Iung B, Prendergast B, Laroche C, Tornos P, Pazdernik M, Maggioni A, Gale CP; EURO-ENDO Investigators. The ESC-EORP EURO-ENDO (European Infective Endocarditis) registry. Eur Heart J Qual Care Clin Outcomes. 2019 Jul 1;5(3):202-207. doi: 10.1093/ehjqcco/qcz018.

    PubMed 30957862
  • Habib G, Erba PA, Iung B, Donal E, Cosyns B, Laroche C, Popescu BA, Prendergast B, Tornos P, Sadeghpour A, Oliver L, Vaskelyte JJ, Sow R, Axler O, Maggioni AP, Lancellotti P; EURO-ENDO Investigators. Clinical presentation, aetiology and outcome of infective endocarditis. Results of the ESC-EORP EURO-ENDO (European infective endocarditis) registry: a prospective cohort study. Eur Heart J. 2019 Oct 14;40(39):3222-3232. doi: 10.1093/eurheartj/ehz620.

    PubMed 31504413
  • Dickerman SA, Abrutyn E, Barsic B, Bouza E, Cecchi E, Moreno A, Doco-Lecompte T, Eisen DP, Fortes CQ, Fowler VG Jr, Lerakis S, Miro JM, Pappas P, Peterson GE, Rubinstein E, Sexton DJ, Suter F, Tornos P, Verhagen DW, Cabell CH; ICE Investigators. The relationship between the initiation of antimicrobial therapy and the incidence of stroke in infective endocarditis: an analysis from the ICE Prospective Cohort Study (ICE-PCS). Am Heart J. 2007 Dec;154(6):1086-94. doi: 10.1016/j.ahj.2007.07.023. Epub 2007 Sep 12.

    PubMed 18035080
  • Nihoyannopoulos P, Oakley CM, Exadactylos N, Ribeiro P, Westaby S, Foale RA. Duration of symptoms and the effects of a more aggressive surgical policy: two factors affecting prognosis of infective endocarditis. Eur Heart J. 1985 May;6(5):380-90. doi: 10.1093/oxfordjournals.eurheartj.a061876.

    PubMed 4043095
  • Lodise TP, McKinnon PS, Swiderski L, Rybak MJ. Outcomes analysis of delayed antibiotic treatment for hospital-acquired Staphylococcus aureus bacteremia. Clin Infect Dis. 2003 Jun 1;36(11):1418-23. doi: 10.1086/375057. Epub 2003 May 20.

    PubMed 12766837
  • Shrestha NK, Ledtke CS, Wang H, Fraser TG, Rehm SJ, Hussain ST, Pettersson GB, Blackstone EH, Gordon SM. Heart valve culture and sequencing to identify the infective endocarditis pathogen in surgically treated patients. Ann Thorac Surg. 2015 Jan;99(1):33-7. doi: 10.1016/j.athoracsur.2014.07.028. Epub 2014 Oct 22.

    PubMed 25442997
  • Morris AJ, Drinkovic D, Pottumarthy S, Strickett MG, MacCulloch D, Lambie N, Kerr AR. Gram stain, culture, and histopathological examination findings for heart valves removed because of infective endocarditis. Clin Infect Dis. 2003 Mar 15;36(6):697-704. doi: 10.1086/367842. Epub 2003 Mar 4.

    PubMed 12627353
  • Lamas CC, Fournier PE, Zappa M, Brandao TJ, Januario-da-Silva CA, Correia MG, Barbosa GI, Golebiovski WF, Weksler C, Lepidi H, Raoult D. Diagnosis of blood culture-negative endocarditis and clinical comparison between blood culture-negative and blood culture-positive cases. Infection. 2016 Aug;44(4):459-66. doi: 10.1007/s15010-015-0863-x. Epub 2015 Dec 15.

    PubMed 26670038
  • Zegri-Reiriz I, de Alarcon A, Munoz P, Martinez Selles M, Gonzalez-Ramallo V, Miro JM, Falces C, Gonzalez Rico C, Kortajarena Urkola X, Lepe JA, Rodriguez Alvarez R, Reguera Iglesias JM, Navas E, Dominguez F, Garcia-Pavia P; Spanish Collaboration on Endocarditis-Grupo de Apoyo al Manejo de la Endocarditis infecciosa en Espana (GAMES). Infective Endocarditis in Patients With Bicuspid Aortic Valve or Mitral Valve Prolapse. J Am Coll Cardiol. 2018 Jun 19;71(24):2731-2740. doi: 10.1016/j.jacc.2018.03.534.

    PubMed 29903346
  • Fontana C, Favaro M, Pelliccioni M, Pistoia ES, Favalli C. Use of the MicroSeq 500 16S rRNA gene-based sequencing for identification of bacterial isolates that commercial automated systems failed to identify correctly. J Clin Microbiol. 2005 Feb;43(2):615-9. doi: 10.1128/JCM.43.2.615-619.2005.

    PubMed 15695654
  • Mignard S, Flandrois JP. 16S rRNA sequencing in routine bacterial identification: a 30-month experiment. J Microbiol Methods. 2006 Dec;67(3):574-81. doi: 10.1016/j.mimet.2006.05.009. Epub 2006 Jul 21.

    PubMed 16859787

Questions about this trial

What is this clinical trial studying?

A study testing PCR (Polymerase Chain Reaction) targeting the 16 ribosomal DNA in people with Endocarditis Infective, run by Fondazione Policlinico Universitario Agostino Gemelli IRCCS at 2 sites in Italy.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Impact of molecular diagnostic tests on the identification of microorganisms (time frame: through study completion, an average of 1 year). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05791357, which also lists 17 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Aug 2025.

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