Actively Recruiting

Phase 2
Age: 50Years +
All Genders
NCT05762211

Oral Pooled Fecal Microbiotherapy to Prevent Allogeneic Hematopoietic Cell Transplantation Complications (PHOEBUS Trial)

Led by MaaT Pharma · Updated on 2024-12-27

387

Participants Needed

54

Research Sites

171 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

This randomized, placebo-controlled phase IIb study (PHOEBUS trial) aims to evaluate the activity of fecal microbiotherapy MaaT033 to improve survival through the prevention of transplant-related complications in eligible alloHCT patients

CONDITIONS

Official Title

Oral Pooled Fecal Microbiotherapy to Prevent Allogeneic Hematopoietic Cell Transplantation Complications (PHOEBUS Trial)

Who Can Participate

Age: 50Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Age 50 years or older
  • Diagnosed with a hematologic malignancy requiring alloHCT with reduced toxicity or reduced intensity conditioning
  • Neutrophil count (polynuclear neutrophils) greater than 0.5 G/L
  • Received broad spectrum antibiotics within 90 days before inclusion
  • Karnofsky performance status of 70% or more
  • Availability of a sibling, unrelated, or familial haploidentical stem-cell donor
  • Provided written informed consent
Not Eligible

You will not qualify if you...

  • Planned to receive non-myeloablative conditioning regimen (2 Gray total body irradiation +/- purine analog, fludarabine + cyclophosphamide or equivalent)
  • Planned to receive conventional myeloablative conditioning regimen (e.g. high dose cyclophosphamide and high dose TBI ≥10Gy; high dose busulfan + high dose cyclophosphamide)
  • Receiving a manipulated graft (in-vitro T-cell depletion)
  • Planned to receive conditioning with alemtuzumab
  • Planned alloHCT with cord blood cells
  • Planned alloHCT from unrelated donor with ≥ 3/10 HLA-mismatches
  • Receiving broad spectrum antibiotics at time of randomization
  • Planned to receive vedolizumab or abatacept for GvHD prophylaxis
  • Creatinine clearance less than 30 mL/min
  • Liver abnormalities contra-indicating alloHCT
  • Cardiac ejection fraction less than 40%
  • Pulmonary impairment with lung carbon monoxide diffusing capacity (DLCO) less than 50%
  • Pregnancy
  • Confirmed or suspected intestinal ischemia
  • Confirmed or suspected toxic megacolon or gastrointestinal perforation
  • Gastro-intestinal surgery in the past 3 months
  • Chronic digestive diseases (Crohn's disease, ulcerative colitis, inflammatory bowel disease, or other relevant conditions)
  • Allergy or intolerance to trehalose or maltodextrin
  • EBV-IgG negative serology
  • Any condition interfering with study participation or posing significant risk
  • Vulnerable patients unable to provide informed consent or in intensive care unit

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 54 locations

1

Universitair Ziekenhuis Antwerpen

Antwerp, Belgium

Actively Recruiting

2

AZ Sint - Jan Brugge

Bruges, Belgium

Actively Recruiting

3

Institut Jules Bordet

Brussels, Belgium

Actively Recruiting

4

Universitair Ziekenhuis Brussel

Brussels, Belgium

Actively Recruiting

5

Universitair Ziekenhuis Gent

Ghent, Belgium

Actively Recruiting

6

Cliniques Universitaires Saint-Luc

Leuven, Belgium

Actively Recruiting

7

Algemeen Ziekenhuis Delta - Campus Rumbeke

Roeselare, Belgium

Actively Recruiting

8

CHU Angers

Angers, France

Actively Recruiting

9

CHU Besançon

Besançon, France

Actively Recruiting

10

CHU Caen

Caen, France

Actively Recruiting

11

CHU Grenoble

La Tronche, France

Actively Recruiting

12

CHRU Lille

Lille, France

Actively Recruiting

13

Centre Hospitalier Universitaire Limoges

Limoges, France

Actively Recruiting

14

Institut Paoli Calmettes

Marseille, France

Actively Recruiting

15

Hôpital Saint-Eloi

Montpellier, France

Actively Recruiting

16

CHU Nantes Hôtel Dieu

Nantes, France

Actively Recruiting

17

Hôpital l'Archet

Nice, France

Actively Recruiting

18

Hôpital Saint-Louis

Paris, France

Actively Recruiting

19

Hôpital St Antoine

Paris, France

Actively Recruiting

20

Hôpital Haut-Lévêque

Pessac, France

Actively Recruiting

21

Centre Hospitalier Lyon-Sud

Pierre-Bénite, France

Not Yet Recruiting

22

Centre Hospitalier Universitaire de Poitiers

Poitiers, France

Actively Recruiting

23

CHU Rennes - Hôpital Pontchaillou

Rennes, France

Actively Recruiting

24

CHU St Etienne

Saint-Priest-en-Jarez, France

Actively Recruiting

25

IUCT Toulouse

Toulouse, France

Actively Recruiting

26

Centre Hospitalier Régional Universitaire de Tours

Tours, France

Not Yet Recruiting

27

CHU Tours

Tours, France

Actively Recruiting

28

Universitätsklinikum Augsburg

Augsburg, Germany

Actively Recruiting

29

Helios Klinikum Berlin-Buch

Berlin, Germany

Not Yet Recruiting

30

Universitätsklinikum Bonn

Bonn, Germany

Actively Recruiting

31

Universitätsklinikum Essen

Essen, Germany

Not Yet Recruiting

32

Universitätsklinikum Frankfurt

Frankfurt, Germany

Not Yet Recruiting

33

Universitätsklinikum des Saarlandes

Hombourg, Germany

Actively Recruiting

34

Universitätsklinikum Schleswig-Holstein - Campus Kiel

Kiel, Germany

Not Yet Recruiting

35

Universitätsklinikum Leipzig

Leipzig, Germany

Not Yet Recruiting

36

Universitätsmedizin Mannheim

Mannheim, Germany

Not Yet Recruiting

37

Klinikum rechts der Isar der Technischen Universität

München, Germany

Actively Recruiting

38

Universitätsklinikum Ulm

Ulm, Germany

Actively Recruiting

39

Universitair Medisch Centrum Groningen

Groningen, Netherlands

Actively Recruiting

40

Hospital de la Santa Creu i Sant Pau

Barcelona, Spain

Actively Recruiting

41

Hospital Universitari Vall d'Hebrón

Barcelona, Spain

Actively Recruiting

42

Institut Català d'Oncologia - Hospital Duran i Reynals (ICO L'Hospitalet)

Barcelona, Spain

Actively Recruiting

43

Hospital Universitario Virgen de las Nieves

Granada, Spain

Actively Recruiting

44

Hospital General Universitario Gregorio Marañón

Madrid, Spain

Actively Recruiting

45

Hospital Universitario La Paz

Madrid, Spain

Actively Recruiting

46

Hospital Universitario Puerta de Hierro - Majadahonda

Majadahonda, Spain

Actively Recruiting

47

Hospital General Universitario Morales Meseguer

Murcia, Spain

Actively Recruiting

48

Clinica Universidad de Navarra - Pamplona

Pamplona, Spain

Actively Recruiting

49

Complejo Asistencial Universitario de Salamanca - Hospital Clínico

Salamanca, Spain

Actively Recruiting

50

Hospital Universitario Marques de Valdecilla

Santander, Spain

Actively Recruiting

51

Hospital Universitario Virgen del Rocío

Seville, Spain

Actively Recruiting

52

Hospital Clínico Universitario de Valencia Avenida Blasco Ibáñez

Valencia, Spain

Actively Recruiting

53

Hospital Universitario La Fe

Valencia, Spain

Actively Recruiting

54

Cardiff and Vale University Health Board

Cardiff, United Kingdom

Actively Recruiting

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Research Team

E

Emilie Plantamura, PharmD, PhD

CONTACT

R

Romain Collard

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

QUADRUPLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

PREVENTION

Number of Arms

2

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