EPISSOC : Randomized controlled trial comparing an Early Pleural Irrigation strategy with Saline to the Standard of Care for the management of complicated pleural infections

2025-524697-42-00 Protocol PI2025_843_0088 Therapeutic confirmatory (Phase III) Authorised, recruitment pending

Status Authorised, recruitment pending · 1 EU/EEA countries · 26 sites · Protocol PI2025_843_0088

Overview

Sponsor-declared trial summary

Phase Therapeutic confirmatory (Phase III)
Status Authorised, recruitment pending
Participants planned 244
Countries 1
Sites 26

Pleural infections

To compare the risk of treatment failure at 30 days (defined as a composite outcome that includes death, the need for thoracic surgery, or additional intrapleural enzyme therapy) between an early pleural irrigation strategy and standard care for complicated pleural infections.

Key facts

Sponsor
Centre Hospitalier Universitaire Amiens Picardie
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Respiratory Tract Diseases [C08]
Decision date (initial)
2026-05-18
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
No
Funding sources
Funding from DGOS / PHRC-N- 2024 and CHU Amiens-Picardie

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Efficacy

To compare the risk of treatment failure at 30 days (defined as a composite outcome that includes death, the need for thoracic surgery, or additional intrapleural enzyme therapy) between an early pleural irrigation strategy and standard care for complicated pleural infections.

Secondary objectives 9

  1. The volume of pleural fluid drained from randomization to day 3
  2. The incidence of serious and non-serious adverse events during the trial drug administration, including fever, allergic reactions, bleeding, and chest tube obstruction.
  3. The intra-hospital mortality as well as 30-day and 90-day mortality rates.
  4. The rate of thoracic surgery within 30 days.
  5. The rate of Intrapleural enzyme therapy within 30 days
  6. The length of hospital stay
  7. The improvements in radiographic clearance by day 3 (end of the trial drug administration).
  8. The lung function outcomes at 90 days.
  9. The residual pain at the time of discharge and again at 90 days.

Conditions and MedDRA coding

Pleural infections

Study design 1 period

#TitleAllocationBlindingRoles blindedArms
1 Randomized controlled trial comparing an Early Pleural Irrigation strategy with Saline to the Standa
This study is a multicentre, open-label, randomized controlled trial comparing an early pleural irrigation strategy with saline to the standard of care for the management of complicated pleural infections requiring pleural drainage. Eligible patients will be randomly assigned to one of two treatment groups. The experimental group will receive intrapleural irrigation with 500 mL of saline two times daily for a total of 6 irrigations (3 days). The control group will receive standard care, which includes maintaining tube patency with 20-mL normal saline flushes administered two times daily for 3 days. Follow-up visits will occur after 3 days (for clinical evaluation), on day 7 (for clinical evaluation), on the day of discharge (for clinical evaluation), on day 30 (for primary outcome evaluation) and on day 90 after randomization (including clinical evaluation and lung function testing via spirometry and plethysmography).
Randomised Controlled None Experimental arm: Experimental group: Intrapleural irrigation with saline will be given twice daily for 3 days: Each irrigation will consist of the instillation of 500 mL of 0.9% sodium chloride solution via a giving set connected to the chest tube and a three-way tap, using a drip stand. The administration will be performed by gravity flow without the use of an infusion pump, and no external pressure will be applied to accelerate the infusion rate. Following the instillation, the chest tube will be left open to allow free drainage, combined with thoracic suction (−20 cmH₂O). This procedure will be repeated twice daily, for a total of six irrigations.
Control arm: Control group: Standard care will consist of pleural drainage combined with regular chest tube maintenance. Chest tubes will be flushed twice daily for 3 consecutive days with 20 mL of 0.9% sodium chloride solution, administered via a sterile syringe to maintain tube patency. Thoracic suction (−20 cmH₂O) will be applied continuously to the chest tubes to facilitate pleural drainage.

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 5

  1. Adults (≥18 years old)
  2. Complicated pleural infection (macroscopically purulent fluid, positive for bacteria on Gram’s staining, positive on culture for bacterial infection, loculated effusion, pH <7.2, great abundance) leading to thoracic drainage;
  3. Initial ultrasound evaluation to estimate pleural fluid abundance and detect fibrinous septation.
  4. Social security affiliation.
  5. Written informed consent.

Exclusion criteria 6

  1. Tuberculous pleural effusions.
  2. Previous treatment with intrapleural fibrinolytic agents (urokinase, streptokinase, alteplase, or DNase) or intrapleural saline lavage.
  3. Pregnancy or lactation.
  4. Expected survival of less than 3 months, owing to a pathologic condition other than that responsible for the pleural abnormalities.
  5. Thoracic drainage since more than 24h
  6. Patient deprived of liberty by administrative or judicial decision or placed under judicial protection (guardianship or supervision)

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. Treatment failure is defined as a composite outcome that includes death, the need for thoracic surgery, or the requirement for additional intrapleural enzyme therapy following randomisation. This endpoint will be assessed at 30 days.

Secondary endpoints 6

  1. Volume of pleural fluid drained from randomization to day 3
  2. - Incidence of serious and non-serious adverse events, including fever, allergic reactions, bleeding, and chest tube obstruction (assessed on day 3).
  3. Intra-hospital mortality, as well as 30-day and 90-day mortality rates
  4. Rate of thoracic surgery within 30 days
  5. Rate of additional intrapleural enzyme therapy within 30 days.
  6. Length of hospital stay from randomization to discharge to home or transfer to a rehabilitation facility.

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 1

Sodium Chloride

SUB12581MIG · Substance

Active substance
Sodium Chloride
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
RESPIRATORY USE
Max daily dose
3 l litre(s)
Max total dose
3 l litre(s)
Max treatment duration
3 Day(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Auxiliary 11

Actilyse 10 mg polvere e solvente per soluzione iniettabile e per infusione

PRD12386769 · Product

Active substance
Alteplase
Substance synonyms
RT-PA
Pharmaceutical form
SOLUTION FOR INJECTION/INFUSION
Route of administration
INTRAVENOUS USE
Max daily dose
90 mg milligram(s)
Max total dose
90 mg milligram(s)
Max treatment duration
3 Day(s)
Authorisation status
Authorised
ATC code
B01AD02 — ALTEPLASE
Marketing authorisation
026533036
MA holder
BOEHRINGER INGELHEIM ITALIA S.P.A.
MA country
Italy
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
Yes
Modification description
Intrapleural fibrinolytic enzyme therapy (urokinase or tPA + DNase) may be used off-label as rescue therapy within routine clinical care and not as part of the investigational protocol, in accordance with international recommendations or data from the international literature (cf references : 9 – 13 – 29 – 30)

ACTOSOLV 100 000 UI, poudre pour solution injectable/pour perfusion

PRD7171020 · Product

Active substance
Urokinase
Pharmaceutical form
SOLUTION FOR INJECTION/INFUSION
Route of administration
INFUSIÓN INTRAVENOSA
Max daily dose
5000 U unit(s)
Max total dose
250000 U unit(s)
Max treatment duration
5 Day(s)
Authorisation status
Authorised
ATC code
B01AD04 — UROKINASE
Marketing authorisation
34009 565 106 7 2
MA holder
EUMEDICA PHARMACEUTICALS GMBH
MA country
France
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
Yes
Modification description
Intrapleural fibrinolytic enzyme therapy (urokinase or tPA + DNase) may be used off-label as rescue therapy within routine clinical care and not as part of the investigational protocol, in accordance with international recommendations or data from the international literature (cf references : 9 – 13 – 29 – 30)

Pulmozyme 2500 U/2.5ml, διάλυμα για εισπνοή μέσω εκνεφωτή

PRD10001498 · Product

Active substance
Dornase Alfa
Pharmaceutical form
NEBULISER SOLUTION
Route of administration
INHALATION
Max daily dose
2.5 mg milligram(s)
Max total dose
5 mg milligram(s)
Max treatment duration
3 Day(s)
Authorisation status
Authorised
ATC code
R05CB13 — DORNASE ALFA (DESOXYRIBONUCLEASE)
Marketing authorisation
90075/31-08-2022
MA holder
ROCHE (HELLAS) SA
MA country
Greece
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
Yes
Modification description
Intrapleural fibrinolytic enzyme therapy (urokinase or tPA + DNase) may be used off-label as rescue therapy within routine clinical care and not as part of the investigational protocol, in accordance with international recommendations or data from the international literature (cf references : 9 – 13 – 29 – 30)

Clindamycin Abcur 150 mg/ml stungulyf/innrennslislyf, lausn.

PRD11493522 · Product

Active substance
Clindamycin Phosphate
Pharmaceutical form
SOLUTION FOR INJECTION/INFUSION
Route of administration
INFUSIÓN INTRAVENOSA
Max daily dose
900 mg milligram(s)
Max total dose
9000 mg milligram(s)
Max treatment duration
10 Day(s)
Authorisation status
Authorised
ATC code
J01FF01 — CLINDAMYCIN
Marketing authorisation
IS/1/22/061/01
MA holder
ABCUR AB
MA country
Iceland
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

CEFOTAXIME VIATRIS 2 g, poudre pour solution injectable (IM - IV)

PRD11496280 · Product

Active substance
Cefotaxime
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
INTRAVENOUS
Max daily dose
6 g gram(s)
Max total dose
60 g gram(s)
Max treatment duration
10 Day(s)
Authorisation status
Authorised
ATC code
J01DD01 — -
Marketing authorisation
34009 561 121 1 1
MA holder
VIATRIS SANTE
MA country
France
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Linezolid 2 mg/ml solution for infusion

PRD12086026 · Product

Active substance
Linezolid
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
INTRAVENIOUS INFUSION
Max daily dose
1200 mg milligram(s)
Max total dose
16800 mg milligram(s)
Max treatment duration
14 Day(s)
Authorisation status
Authorised
ATC code
J01XX08 — LINEZOLID
Marketing authorisation
PL 56284/0033
MA holder
EUGIA (UK) LTD
MA country
XI
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Cefepime AptaPharma 2 g powder for solution for injection/infusion

PRD10312931 · Product

Active substance
Cefepime Dihydrochloride Monohydrate
Substance synonyms
CEFEPIME HYDROCHLORIDE MONOHYDRATE
Pharmaceutical form
SOLUTION FOR INJECTION/INFUSION
Route of administration
IV INJECTION, IV INFUSION
Max daily dose
6 g gram(s)
Max total dose
84 g gram(s)
Max treatment duration
14 Day(s)
Authorisation status
Authorised
ATC code
J01DE01 — -
Marketing authorisation
MA1265/01002
MA holder
APTA MEDICA INTERNACIONAL D.O.O.
MA country
Malta
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Vancomycin Viatris 1 000 mg pulver till infusionsvätska, lösning

PRD10427270 · Product

Active substance
Vancomycin
Substance synonyms
VANCOMYCINUM
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
INTRAVENOUS USE
Max daily dose
2 g gram(s)
Max total dose
28 g gram(s)
Max treatment duration
14 Day(s)
Authorisation status
Authorised
ATC code
J01XA01 — VANCOMYCIN
Marketing authorisation
63256
MA holder
VIATRIS LIMITED
MA country
Sweden
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Piperacilline/Tazobactam Viatris 4 g/500 mg Pulver zur Herstellung einer Infusionslösung

PRD10940259 · Product

Active substance
Piperacillin
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
SOLUTION FOR INTRAVENOUS INFUSION
Max daily dose
16 g gram(s)
Max total dose
224 g gram(s)
Max treatment duration
14 Day(s)
Authorisation status
Authorised
ATC code
J01CR05 — PIPERACILLIN AND ENZYME INHIBITOR
Marketing authorisation
BE347873
MA holder
VIATRIS GX
MA country
Belgium
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Metronidazole 500 mg/100 ml solution for infusion

PRD11697017 · Product

Active substance
Metronidazole
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
INFUSIÓN INTRAVENOSA
Max daily dose
1.5 g gram(s)
Max total dose
15 g gram(s)
Max treatment duration
10 Day(s)
Authorisation status
Authorised
ATC code
P01AB01 — METRONIDAZOLE
Marketing authorisation
PL 56639/0011
MA holder
SVP PHARMA LTD
MA country
XI
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Amoxicilline/Clavulaanzuur IBISQUS 2000 mg/200 mg poeder voor oplossing voor infusie

PRD10103291 · Product

Active substance
Amoxicillin
Pharmaceutical form
SOLUTION FOR INJECTION/INFUSION
Route of administration
INTRAVENOUS
Max daily dose
6 g gram(s)
Max total dose
60 g gram(s)
Max treatment duration
10 Day(s)
Authorisation status
Authorised
ATC code
J01CR02 — AMOXICILLIN AND ENZYME INHIBITOR
Marketing authorisation
RVG 129671
MA holder
IBI G. LORENZINI SPA
MA country
Netherlands
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Centre Hospitalier Universitaire Amiens Picardie

Sponsor organisation
Centre Hospitalier Universitaire Amiens Picardie
Address
1 Rond Point Du Pr Christian Cabrol
City
Amiens Cedex 1
Postcode
80054
Country
France

Scientific contact point

Organisation
Centre Hospitalier Universitaire Amiens Picardie
Contact name
BASILLE Damien

Public contact point

Organisation
Centre Hospitalier Universitaire Amiens Picardie
Contact name
BASILLE Damien

Locations

1 EU/EEA country · 26 investigational sites

By country

CountryMS statusPlanned subjectsSites
France Authorised, recruitment pending 244 26
Rest of world 0

Investigational sites

France

26 sites · Authorised, recruitment pending
Centre Hospitalier De Haguenau
intensive care, 64 Avenue Du Professeur Rene Leriche, 67500, Haguenau
Centre Hospitalier Universitaire Reims
Pneumology, Rue Du General Koenig, 51092, Reims Cedex
Centre Hospitalier Universitaire D'Angers
Respiratory and sleep Medicine, 4 Rue Larrey, 49100, Angers
Centre Hospitalier D Avignon
Pneumology, 305 Rue Raoul Follereau, 84000, Avignon
Centre Hospitalier Universitaire De Caen Normandie
Pneumology, Avenue De La Cote De Nacre, 14000, Caen
Centre Hospitalier De Valenciennes
Pneumology, 114 Avenue Desandrouin, 59300, Valenciennes
Hospices Civils De Lyon
Pneumology, 103 Grande Rue De La Croix Rousse, 69317, Lyon Cedex 04
Centre Hospitalier Universitaire De Nice
Pneumology, 30 Voie Romaine, 06000, Nice
Groupe Hospitalier Du Havre
Pneumology, 29 Avenue Pierre Mendes France, 76290, Montivilliers
Centre Hospitalier Universitaire De Toulouse
Pneumology, 24 Chemin De Pouvourville, 31400, Toulouse
Les Hopitaux Universitaires De Strasbourg
Pneumology, 1 Place De L Hopital, 67000, Strasbourg
Centre Hospitalier Alpes-Leman
Pneumology, 558 Route De Findrol, 74130, Contamine-Sur-Arve
Centre Hospitalier De Saint-Quentin
Pneumology, 1 Rue Michel De L Hospital, 02100, Saint Quentin
Assistance Publique Hopitaux De Paris
Pneumology, 184 Rue Du Faubourg Saint Antoine, 75012, Paris
Centre Hospitalier Universitaire Rouen
Pneumology and Thoracic Oncology, 1 Rue De Germont, 76000, Rouen
Centre Hospitalier Universitaire Amiens Picardie
Pneumology, 1 Rond Point Du Pr Christian Cabrol, 80054, Amiens Cedex 1
Centre Hospitalier Intercommunal Creteil
Pneumology, 40 Avenue De Verdun, 94000, Creteil
Centre Hospitalier Regional Universitaire De Tours
Pneumology, 2 Boulevard Tonnelle, 37000, Tours
Centre Hospitalier Des Pays De Morlaix
Pneumology, 15 Rue De Kersaint Gilly, Bp 97237, Morlaix
Centre Hospitalier Victor Dupouy
Pneumology, 69 Rue Du Lieutenant Colonel Prudhon, 95107, Argenteuil Cedex
Centre Hospitalier Universitaire De Nantes
Pneumology, Boulevard Du Professeur Jacques Monod, 44800, Saint Herblain
Hopital NOVO
Pneumology, 6 Avenue De L Ile De France, 95300, Pontoise
CHRU De Nancy
Pneumology, Rue Du Morvan, 54500, Vandoeuvre Les Nancy
Centre Hospitalier Universitaire De Nimes
Pneumology, 4 Place Du Professeur Robert Debre, Bp 40026, Nimes Cedex 9
Centre Hospitalier Regional Et Universitaire De Brest
Internal Medicine and Pneumology, Boulevard Tanguy Prigent, 29200, Brest
Centre Hospitalier Universitaire De Bordeaux
Pneumology, Avenue De Magellan, 33600, Pessac

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 21 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) Annexe 5_CTCG Contraception guidline pages 11 and 10 1
Protocol (for publication) Annexe_4_Procedure pleural_irrigation_and_chest_tube_flushing_EPISSOC 1
Protocol (for publication) Carte et Carnet patient EPISSOC 1
Protocol (for publication) D1_ Protocol 2025-524697-42-00 1.1
Protocol (for publication) D1_ Protocol 2025-524697-42-00_avec suivi de modif 1
Protocol (for publication) D1_ Protocol 2025-524697-42-00_avec suivi de modification 1.3
Protocol (for publication) D1_ Protocol 2025-524697-42-00_Clean 1
Protocol (for publication) D1_ Protocol 2025-524697-42-00_clean 1
Protocol (for publication) D1_ Protocol avec suivi de modif 2025-524697-42-00 1.1
Protocol (for publication) PHRC_PHRC-21_Basille_Annexe_4_pleural_irrigation_and_chest_tube_flushing 1
Protocol (for publication) Thal-Quick thoraxdrainage sets - instruction for use 1
Recruitment arrangements (for publication) K1_Recruitment arrangements 1
Subject information and informed consent form (for publication) L1_SIS and ICF Adults 1
Subject information and informed consent form (for publication) L1_SIS and ICF Adults_ avec suivi de modif 1.1
Subject information and informed consent form (for publication) L1_SIS and ICF Adults_ sans suivi de modif 1.1
Summary of Product Characteristics (SmPC) (for publication) E2_ SmPC CHLORURE DE SODIUM 1
Synopsis of the protocol (for publication) D1_ Protocol synopsis avec suivi de modif_2025-524697-42-00 1
Synopsis of the protocol (for publication) D1_ Protocol synopsis_2025-524697-42-00 1
Synopsis of the protocol (for publication) D1_ Protocol synopsis_2025-524697-42-00_ avec suivi de modif 1.3
Synopsis of the protocol (for publication) D1_ Protocol synopsis_2025-524697-42-00_ clean 1.3
Synopsis of the protocol (for publication) D1_ Protocol synopsis_2025-524697-42-00_ version clean 1.2

Application history

1 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2026-01-26 France Acceptable
2026-05-18
2026-05-18