NCT06294600

Brief Summary

The primary objective of the REACT randomized clinical trial (RCT) is to optimize the clinical benefit from adjunctive clarithromycin treatment shown in the ACCESS trial and to provide evidence for the clinical benefit of early start of adjunctive oral clarithromycin guided by suPAR to prevent the progression into sepsis in patients with community-acquired pneumonia (CAP) at risk. This can be achieved by endpoints incorporating clinical benefit with the effect of treatment on the improvement of the immune dysregulation of CAP. The secondary objectives of REACT are to investigate the impact of early adjunctive treatment with clarithromycin on the resolution of CAP at the test-of-cure (TOC) visit.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
330

participants targeted

Target at P50-P75 for phase_3

Timeline
3mo left

Started Feb 2024

Geographic Reach
1 country

24 active sites

Status
recruiting

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

Study Progress91%
Feb 2024Jul 2026

Study Start

First participant enrolled

February 12, 2024

Completed
16 days until next milestone

First Submitted

Initial submission to the registry

February 28, 2024

Completed
6 days until next milestone

First Posted

Study publicly available on registry

March 5, 2024

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 5, 2026

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 30, 2026

Expected
Last Updated

December 16, 2025

Status Verified

December 1, 2025

Enrollment Period

2.1 years

First QC Date

February 28, 2024

Last Update Submit

December 15, 2025

Conditions

Keywords

CAPCLARITHROMYCINSEPSISsuPARPCTACCESSSOFARSS

Outcome Measures

Primary Outcomes (3)

  • Change of baseline respiratory symptoms score

    At least 50 percent (%) decrease of the sum of scoring (0-12) for the symptoms of cough (0-3), dyspnea (0-3), purulent sputum expectoration (0-3) and pleuritic chest pain (0-3) between baseline and Study Day 4

    4 Days

  • Change of baseline total sequential organ failure assessment (SOFA) score

    At least 30 percent (%) decrease between baseline sequential organ failure assessment (SOFA) score and measured sequential organ failure assessment (SOFA) score at Study Day 4.

    4 Days

  • Change of baseline on both plasma PCT and plasma IL-10 or IL-8 to IL-10 ratio

    Plasma PCT on visit 4 has decreased by at least 80% from baseline PCT on screening or it is below 0.25 ng/ml AND (\[plasma IL-10 on visit 4 has decreased by at least 25% from IL-10 of visit 1 or it is below the lower limit of detection\] OR \[the IL-8 to IL-10 ratio of day 4 has decreased less than 15% from the IL-8 to IL-10 ratio of visit 1\]).

    4 Days

Secondary Outcomes (9)

  • The number of patients that succeeded the resolution of CAP at the test of cure (TOC) visit.

    14 Days

  • Need for up-escalation of the SoC administered antibiotics.

    28 Days

  • Survival

    28 Days

  • Change of baseline sequential organ failure assessment (SOFA) score

    8 Days

  • Change of baseline on both plasma PCT and plasma IL-10 or IL-8 to IL-10 ratio

    8 Days

  • +4 more secondary outcomes

Study Arms (2)

Placebo

PLACEBO COMPARATOR

These patients will be treated with 1 placebo tablet every 12 hours and it is suggested that all patients receive at least one of antibiotics based on the current ESCMID guidelines for severe CAP13 (Ampicillin/sulbactam, Amoxicillin/clavulanate, Piperacillin/tazobactam, Ceftriaxone, Cefotaxime, Ceftaroline, Moxifloxacin). The total duration of treatment will be seven days.Τhe dosage, the dosage regime, the route and mode of administration, and the treatment period for the aforementioned antibiotics can be found in the relevant SmPCs (available in References). However, the attending physician may modify the antimicrobial treatment based on risk factors for multidrug-resistance pathogens, microbiology results and local epidemiology. All SoC treatment products and clarithromycin are authorised for use in Greece, where the trial will be conducted.

Drug: Tablets

Clarithromycin

ACTIVE COMPARATOR

These patients will be treated with oral clarithromycin 500 mg twice daily for seven days and it is suggested that all patients receive at least one of antibiotics based on the current ESCMID guidelines for severe CAP13 (Ampicillin/sulbactam, Amoxicillin/clavulanate, Piperacillin/tazobactam, Ceftriaxone, Cefotaxime, Ceftaroline, Moxifloxacin). The total duration of treatment will be seven days.Τhe dosage, the dosage regime, the route and mode of administration, and the treatment period for the aforementioned antibiotics can be found in the relevant SmPCs (available in References). However, the attending physician may modify the antimicrobial treatment based on risk factors for multidrug-resistance pathogens, microbiology results and local epidemiology. All SoC treatment products and clarithromycin are authorised for use in Greece, where the trial will be conducted.

Drug: Clarithromycin 500mg

Interventions

Oral tablets of 500mg of clarithromycin

Also known as: A β-lactam/β-lactamase inhibitor or a 3rd generation cephalosporin or a fluoroquinolone
Clarithromycin

Oral tablets of similar appearance to active study drug

Also known as: A β-lactam/β-lactamase inhibitor or a 3rd generation cephalosporin or a fluoroquinolone
Placebo

Eligibility Criteria

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

You may qualify if:

  • Age equal to or above 18 years
  • Male or female gender
  • In case of women of reproductive age, willingness to use dual contraceptive method during the study period
  • Written informed consent provided by the patient. For subjects without decision-making capacity, informed consent must be obtained from a legally designated representative following the national legislation
  • Community-acquired pneumonia (CAP)
  • Presence of at least two of the following signs: i) cough; ii) purulent sputum expectoration; iii) dyspnea; and/or iv) pleuritic chest pain
  • PCT ≥0.25 ng/ml
  • suPAR ≥6 ng/ml

You may not qualify if:

  • Age below 18 years
  • Denial of written informed consent
  • Any stage IV malignancy
  • Any do not resuscitate decision
  • Patients necessitating non-invasive ventilation or mechanical ventilation
  • Hospitalization in Intensive Care Unit
  • Infection by SARS-CoV-2
  • Oral or IV intake of corticosteroids at a daily dose equal to or greater than 0.4 mg/kg prednisone for a period greater than the last 15 days
  • Intake of any macrolide for the current episode of CAP under study
  • Known infection by the human immunodeficiency virus
  • Any chronic anti-cytokine treatment for more than two months
  • QTc interval at rest in the ECG ≥500 msec or history of know long QT syndrome
  • Medical history of allergy to macrolides
  • Concomitant oral intake of astemizole, cizapride, doperidone, pimozide, terfenadine, midazolam, ranolazine, ergot alkaloids (e.g. ergotamine and dihydroergotamine), lomitapide and colchicine; patients may be enrolled in the trial if they stop these drugs during trial participation.
  • Medical history of torsades de pointes arrhythmia
  • +5 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (24)

5th Pulmonary Department, SOTIRIA Athens General Hospital of Chest Diseases

Athens, Athens, 115 27, Greece

RECRUITING

1st Department of Internal Medicine - General Hospital of Athens "Sismanogleio-Amalia Fleming"

Athens, Greece, Greece

NOT YET RECRUITING

1st Department of Internal Medicine, AHEPA University General Hospital of Thessaloniki

Athens, Greece, Greece

RECRUITING

1st Department of Internal Medicine, EVANGELISMOS Athens General Hospital

Athens, Greece, Greece

RECRUITING

1st Department of Internal Medicine, G. GENNIMATAS Athens General Hospital

Athens, Greece, Greece

RECRUITING

1st Department of Internal Medicine, General University Hospital of Ioannina

Athens, Greece, Greece

RECRUITING

1st Department of Internal Medicine, KORGIALENEIO-BENAKEIO E.E.S. Athens General Hospital

Athens, Greece, Greece

RECRUITING

1st Department of Internal Medicine, THRIASIO General Hospital of Elefsis

Athens, Greece, Greece

RECRUITING

1st University Department of Pulmonary Medicine, SOTIRIA General Hospital of Chest Diseases of Athens

Athens, Greece, Greece

RECRUITING

2nd Department of Internal Medicine, Attikon University Hospital

Athens, Greece, Greece

RECRUITING

2nd Department of Internal Medicine, THRIASIO General Hospital of Elefsis

Athens, Greece, Greece

RECRUITING

2nd Department of Internal Medicine, TZANEIO Piraeus General Hospital

Athens, Greece, Greece

RECRUITING

2nd Department of Internal Medicine, University General Hospital of Alexandroupolis

Athens, Greece, Greece

RECRUITING

3rd Department of Internal Medicine - General State Hospital of Nikaia "Saint Panteleimon" - West Attica General Hospital

Athens, Greece, Greece

RECRUITING

3rd Department of Internal Medicine, General Hospital of Athens KORGIALENEIO- BENAKEIO E.E.S.

Athens, Greece, Greece

RECRUITING

3rd University Department of Internal Medicine, SOTIRIA Athens General Hospital of Chest Diseases

Athens, Greece, Greece

RECRUITING

4th Department of Internal Medicine, Attikon University Hospital

Athens, Greece, Greece

RECRUITING

6th Pulmonary Medicine Department, SOTIRIA General Hospital of Chest Diseases of Athens

Athens, Greece, Greece

RECRUITING

Department of Chest Medicine, EVANGELISMOS Athens General Hospital

Athens, Greece, Greece

RECRUITING

Department of Internal Medicine, Larissa University General Hospital

Athens, Greece, Greece

RECRUITING

Department of Internal Medicine, Patras University General Hospital

Athens, Greece, Greece

RECRUITING

Department of Pulmonary Medicine, General Hospital of Kerkira

Athens, Greece, Greece

RECRUITING

Emergency Department, TZANEIO Piraeus General Hospital

Athens, Greece, Greece

RECRUITING

3rd Department of Internal Medicine, PAPAGEORGIOU General Hospital of Thessaloniki

Thessaloniki, Thessaloniki, 564 29, Greece

RECRUITING

MeSH Terms

Conditions

Community-Acquired PneumoniaSepsis

Interventions

ClarithromycinTablets

Condition Hierarchy (Ancestors)

Community-Acquired InfectionsInfectionsPneumoniaRespiratory Tract InfectionsRespiratory Tract DiseasesSystemic Inflammatory Response SyndromeInflammationPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

ErythromycinMacrolidesPolyketidesLactonesOrganic ChemicalsDosage FormsPharmaceutical Preparations

Study Officials

  • Evangelos J Giamarellos-Bourboulis, MD, Phd

    Hellenic Sepsis Study Group

    STUDY CHAIR

Central Study Contacts

Evangelos J Giamarellos-Bourboulis, MD, Phd

CONTACT

Athanasia Chatzianastasiou, Phd

CONTACT

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This is a prospective, 1:1 randomized, double-blind, placebo-controlled trial
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 28, 2024

First Posted

March 5, 2024

Study Start

February 12, 2024

Primary Completion

April 5, 2026

Study Completion (Estimated)

July 30, 2026

Last Updated

December 16, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations