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Clinical Trial to Demonstrate the Safety and Efficacy of DUOFAG®

Phase 1
Recruiting
Conditions
Surgical Wound Infection
Surgical Site Infection
Pseudomonas Aeruginosa Infection
Bacterial Infections
Staphylococcus Aureus Infection
Interventions
Drug: Placebo
Drug: IMP
Registration Number
NCT06319235
Lead Sponsor
MB PHARMA s.r.o.
Brief Summary

DUOFAG® is a phage cocktail containing bacteriophages active against Staphylococcus aureus and Pseudomonas aeruginosa. It is an investigational medicinal product for the treatment of surgical site infections caused by S. aureus and P. aeruginosa.

The primary objective of the study is to demonstrate the safety of DUOFAG® and the clinical and microbiological change within 10 weeks after the start of treatment or until healing.

Detailed Description

The study population will be recruited in two cohorts. The microbiological population of the wound will be evaluated to analyze the effect of the treatment. If the safety profile and treatment effect are going to be satisfactory, the recruitment will proceed with Cohort 2.

In both cohorts, the Investigational Medicinal Product (IMP) or placebo (the randomization ratio will be 1:1) will be applied twice a day for two weeks or until the commencement of healing.

Patients will receive the standard of care during the whole study duration. No concomitant treatment is planned during the treatment period.

The Adverse Events will be recorded on basis of an open interview without soliciting questions, and clinical observation. In case of occurrence of an adverse event (AE) with moderate or severe intensity possibly related to IMP, the treatment will be stopped, and the AE will be followed up until resolution.

Adverse Event descriptions, their severity (mild, moderate, or severe), duration and their perceived relationship to the study medication (probable, possible, unlikely, not related, and not sure) will be recorded.

The mLUMT (modified Leg Ulcer Measurement Tool) total score and individual item scores change since the baseline visit will be recorded.

Time from the start of the study treatment until the bacterial infection eradication - i. e. the swab sample is negative on S. aureus and/or P. aeruginosa will be recorded.

Time from the start of the study treatment until the wound is closed/healed (as assessed by investigator) will be recorded.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
52
Inclusion Criteria
  • Patients with surgical wound infection and/or dehiscence
  • Wound infected by S. aureus and/or P. aeruginosa according to wound swab.
  • Wound in the groin or any other skin fold as per Investigator's discretion.
  • Signed Informed Consent Form, approved by the ethical committee and competent authority.
  • The age between 18 and 75 years.
  • Patients able and willing to comply with study procedures.
  • There are no contraindications for planned concomitant medication.
  • Persisting symptoms of bacterial infection < 3 weeks since the surgery.
  • Women of childbearing potential must take highly effective contraceptive measures since the study start and one month after the treatment administration at a minimum.
Exclusion Criteria
  • History of an organ or bone marrow transplantation.
  • Any autoimmune disease.
  • Uncompensated diabetes mellitus, confirmed by the concentration of HbA1c >60 mmol/mol (6%).
  • Systematic immunosuppressive therapy.
  • Malignancy treatment <1 year before the Baseline visit.
  • COVID-19 infection <3 months before the Baseline visit, any signs of post-COVID syndrome.
  • Pregnancy or planning to become pregnant during the study.
  • Breastfeeding.
  • Participation in another clinical study.
  • Hypersensitivity to the IMP or placebo.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Control armPlaceboPlacebo (physiological saline solution - 0.9% sodium chloride solution) will be administered twice a day for two weeks. Placebo will be sprayed on the surgical wound.
Investigational armIMPDUOFAG® (the investigational medicinal product - IMP) will be administered twice a day for two weeks. DUOFAG® will be sprayed on the surgical wound. The phage titers of each bacteriophage in DUOFAG® is ≥ 10 000 000 PFU/mL (PFU = plaque forming units).
Primary Outcome Measures
NameTimeMethod
Primary endpoint - pooled Cohorts 1 & 210 weeks (the maximum duration)

Time to commencement of healing.

Primary endpoint - Cohort 110 weeks (the maximum duration)

The endpoint will be the frequency of all (local and systemic) reactions with suspected or confirmed relation to IMP.

Secondary Outcome Measures
NameTimeMethod
Safety endpoints (assessed in pooled Cohorts 1 & 2)10 weeks (the maximum duration)

The frequency of the following symptoms following the IMP application will be evaluated: local reactions, systemic reactions.

Microbiological endpoints (assessed in pooled Cohort 1 and Cohort 2)2 weeks (the maximum duration)

Change of the microbiological profile of the wound assessed by swab.

Clinical efficacy endpoints10 weeks (the maximum duration)

The mLUMT total score change since Baseline, time since the start of the study treatment until the bacterial infection eradication, time since the start of the study treatment until the granulation process in the wound has started, time since the start of the study treatment until the wound is closed as assessed by Investigator.

Trial Locations

Locations (1)

St. Anne's University Hospital Brno

🇨🇿

Brno, Czech Republic, Czechia

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