Efficacy of a Probiotic or Fecal Microbiota Transplantation (FMT) on the Eradication of Rectal Multidrug-resistant Gram-negative Bacilli (MDR-GNB) Carriage (PROFTMDECOL)

Summary

The working hypothesis is that in patients who are rectal carriers of MDR-GNB (Multi drug-resistant gram negative bacilli), the rate and speed of eradication of the carrier status obtained with NAA regimens are insufficient and could be improved with additional interventions directed to restore a healthy fecal microbiota or to increase the colonization resistance by the putative beneficial activity of lactate-producing bacteria and bifidobacteria. A healthier colonic microbiota environment is expected not only to promote the eradication of the existing MDR organisms but also to hinder the subsequent recolonization and hopefully the risk of infection with gut dysbiosis -associated pathogens (MDR-GNB, C. difficile and Candida).

The principal objective of the study is To compare the decolonization efficacy at the end of the study (60 ± 7 days after randomization) of the administration of a probiotic ("Vivomixx®" 2 sachets/12h for 2 weeks) versus the administration of two doses (administered a week apart) of a fecal microbiota transplantation preparation (equivalent to 50 g of healthy donor feces) and no treatment (control arm) in patients with rectal colonization with MDRGNB (ESBL-producing Klebsiella pneumoniae, CPE and MDR/XDR (multi drug-resistant/ extensively drug-resistant Pseudomonas aeruginosa).

Conditions

• CARRIER STATE

Interventions

DIETARY_SUPPLEMENT

PROBIOTIC

Participants assigned to the probiotic arm will receive 2 sachets of "Vivomixx®" dissolved in 50 L of warm water (according to the manufacturer indications) every 12 h orally or through a nasogastric tube (in this case the tube will be flushed with 50 mL of water after the administration). The probiotic will be started 24 h after the last dose of NAA and will be administered for 14 consecutive days. Each sachet of "Vivomixx®" contains a combination of 4 Lactobacillus (L. paracasei 24733, L. acidophilus 24735, L. delbrueckii ssp bulgaricus 24734, L. plantarum 24730), 3 Bifidobacteria (B. brief 24732, B. longum 24736, B. infantis 24737), and Streptococcus thermophilus 24731 at a concentration of 450 billion (45x1010) live lyophilized bacteria per sachet.

DIETARY_SUPPLEMENT

FMT REGIMEN

The FMT preparation will be administered as 2 doses, once a week, of 14-17 capsules per dose. Each dose (14-17 capsules) will contain the fecal microbiota equivalent to 50 gr of stools from a healthy donor. If the patient is carrying a nasogastric tube, the content of capsules will be decapsulized (\~27 gr of powder), diluted in 50 mL of water and passed through it, followed by the administration of 50 mL of water to flush the tube. The first dose will be administered 24 h after the last dose of NAA and the second dose one week later. Whenever possible, the two doses of FMT will be originated from the same donor. According to our data done by flow cytometry and bacterial culture in three replicates, each absorbate capsule contains approximately 1.12x1010 live bacteria.

Sponsors & Collaborators

• Fundacion Clinic per a la Recerca Biomédica

  collaborator OTHER

• Institut d'Investigacions Biomèdiques August Pi i Sunyer

  collaborator OTHER

• Fondo de Investigacion Sanitaria

  collaborator OTHER

• Hospital Clinic of Barcelona

  lead OTHER

Principal Investigators

• Jose Antonio Martinez, PhD · senior consultant

• Ana del rio, PhD · senior consultant

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2020-11-16

Primary Completion

2022-12-31

Completion

2023-07-01

Countries

• Spain

Study Locations