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Effectiveness and Safety of Using Prontosan to Treat Bacterial Biofilm

Offene Rekrutierung
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Die klinische Studie NCT06185465 ist eine interventionsstudie zur Untersuchung von Irrigation Solution, Chronische Wunde, Druckverletzung, Diabetisches Fußulkus, Verbrennungen und hat den Status offene rekrutierung. Die Studie startete am 3. Januar 2024 und soll 60 Teilnehmer aufnehmen. Durchgeführt von The First Hospital of Jilin University ist der Abschluss für 28. Februar 2025 geplant. Die Daten von ClinicalTrials.gov wurden zuletzt am 23. Februar 2024 aktualisiert.
Kurzbeschreibung
The goal of this prospective, multi-center, randomized, parallel-controlled, open-label clinical study is to evaluate the effectiveness and safety of Prontosan wound irrigation solution comparing with Normal Saline on the removal of wound bacterial biofilm through observing the morphological characteristics and development of bacterial biofilm in chronic wound patients with secondary infections. The main questions it aims to answer are:

  • Difference in scoring the positive rate of bacterial biofilm before the first treatment and on the 7th day of treatment in Group A and Group B
  • Difference in scoring the positive rate of bacterial biofilm before the first treatment and on the 3rd day of treatment in Group A and Group B .
  • Positive detection rate of bacterial biofilm in group and group B before the first treatment, and on the 3rd and 7th day of treatment, and difference of the positive detection rate of biofilm among the two groups.
  • 4-phase typing of bacterial biofilm detected in Group A, Group B and Group C before the first treatment, and on the 3rd and 7th day of treatment, and the proportion difference of 4-phase typing of biofilm among the two groups.
  • Wound healing rate
  • Skin Infection Rating Scale (SIRS) score.
  • Distribution of inflammatory cells on the wound.
  • Detection rate of bacteria/drug-resistant bacteria on the wound and their correlation with the detection rate of bacterial biofilm.

Participants will be randomized to experimental group or Control group, Prontosan Wound Irrigation Solution or normal saline will be extracted with syringe (Dosage 1-2ml/cm2), and the wound is rinsed 1 cm from the wound. Then, Prontosan wound irrigation solution or normal saline is used to saturate the gauze, and the gauze is applied to the wound for 15 minutes. After removing the gauze, cover it with oil gauze, then cover it with 8 layers of gauze and wrap it with a bandage.

Offizieller Titel

Effectiveness and Safety of Using Prontosan Wound Irrigation Solution to Treat Bacterial Biofilm in Chronic Wound Patients With Secondary Infections: a Randomized, Controlled, Open Multicenter Study.

Erkrankungen
Irrigation SolutionChronische WundeDruckverletzungDiabetisches FußulkusVerbrennungen
Weitere Studien-IDs
  • 2023-075
NCT-Nummer
Studienbeginn (tatsächlich)
2024-01-03
Zuletzt aktualisiert
2024-02-23
Studienende (vorauss.)
2025-02-28
Geplante Rekrutierung
60
Studientyp
Interventionsstudie
PHASE
Nicht zutreffend
Status
Offene Rekrutierung
Stichwörter
Prontosan wound irrigation solution
Prontosan
Chronic wound
Pressure Injury
Burns
Diabetic Foot Ulcer
Primäres Ziel
Behandlung
Zuteilungsmethode
Randomisiert
Interventionsmodell
Parallel
Verblindung
Einfach verblindet
Studienarme/Interventionen
Teilnehmergruppe/StudienarmIntervention/Behandlung
ExperimentellProntosan Wound Irrigation Solution rinse
The test group is selected according to the randomization number of enrollment. For experimental group, Prontosan Wound Irrigation Solution is extracted with syringe (Dosage 1-2ml/cm2), and the wound is rinsed 1 cm from the wound. Then, Prontosan wound irrigation solution is used to saturate the gauze, and the gauze is applied to the wound for 15 minutes. After removing the gauze, cover it with oil gauze, then cover it with 8 layers of gauze and wrap it with a bandage.
Prontosan Wound Irrigation Solution
After debridement surgery, the test group is selected according to the randomization number of enrollment. For experimental group, Prontosan Wound Irrigation Solution is extracted with syringe (Dosage 1-2ml/cm2), and the wound is rinsed 1 cm from the wound. Then, Prontosan wound irrigation solution is used to saturate the gauze, and the gauze is applied to the wound for 15 minutes. After removing the gauze, cover it with oil gauze, then cover it with 8 layers of gauze and wrap it with a bandage.
Aktives VergleichspräparatNormal Saline rinse
For control group, Normal saline is extracted with syringe (Dosage 1-2ml/cm2), and the wound is rinsed 1 cm from the wound. Then, Normal saline is used to saturate the gauze, and the gauze is applied to the wound for 15 minutes. After removing the gauze, cover it with oil gauze, then cover it with 8 layers of gauze and wrap it with a bandage.
Normale Kochsalzlösung
After debridement surgery, the test group is selected according to the randomization number of enrollment. For control group, normal saline is extracted with syringe (Dosage 1-2ml/cm2), and the wound is rinsed 1 cm from the wound. Then, normal saline is used to saturate the gauze, and the gauze is applied to the wound for 15 minutes. After removing the gauze, cover it with oil gauze, then cover it with 8 layers of gauze and wrap it with a bandage.
Hauptergebnismessungen
ErgebnismessungBeschreibung der MessungZeitrahmen
Difference in scoring the positive rate of bacterial biofilm before the first treatment and on the 7th day of treatment in Group A and Group B
Difference in scoring the positive rate of bacterial biofilm=the total score of 3 tissues before treatment- the total score of 3 tissues treatment after 7days. To compare the score difference between 2 groups after the difference is calculated.
Day0, Day7
Nebenergebnismessungen
ErgebnismessungBeschreibung der MessungZeitrahmen
Difference in scoring the positive rate of bacterial biofilm before the first treatment and on the 3rd day of treatment in Group A and Group B
Difference in scoring the positive rate of bacterial biofilm=the total score of 3 tissues before treatment- the total score of 3 tissues treatment after 3 days. To compare the score difference between 2 groups after the difference is calculated
Day0, Day3
Positive detection rate of bacterial biofilm in group and group B before the first treatment, and on the 3rd and 7th day of treatment, and difference of the positive detection rate of biofilm among the two groups
If any of the 3 samples is tested positive for the biofilm, the result will be judged positive (+); If no biofilm is detected in the 3 samples, the result will be judged negative (-).
Day0, Day3,Day7
4-phase typing of bacterial biofilm detected in Group A, Group B and Group C before the first treatment, and on the 3rd and 7th day of treatment, and the proportion difference of 4-phase typing of biofilm among the two groups
Typing I: 0 point is scored in case of free bacteria, i.e., dispersed phase of monomer bacteria; Typing II: 0 points are scored in case of bacterial adhesion, i.e., aggregation phase of monomer bacteria; Typing III\&IV: 3 points are scored in case of mature bacterial biofilm, i.e., closed phase of colony bacteria; 3 points are scored in case of spreading of bacterial biofilm, i.e., open phase of colony bacteria.
Day0, Day3,Day7
Wound healing rate
The wound is covered with sterile mesh film before the first treatment, and on the 3rd and 7th day of treatment, the wound area is measured and recorded, and the difference in wound healing rate among the two groups is compared.
Day0, Day3,Day7
Skin Infection Rating Scale (SIRS) score
o Skin Infection Rating Scale (SIRS) scoring is conducted and recorded before the first treatment, and on the 3rd and 7th day of treatment to compare the differences of SIRS scores among the two groups. SIRS scoring Items include Exudate / pus, Scabbing, Erythema/Inflammation, Tissue edema, Tissue fever, Pruritus and Pain. The scores of every items are 0=none, 1=mild, 2= Moderate, 3= severe.
Day0, Day3,Day7
Distribution of inflammatory cells on the wound
The H-E staining pathological sections of inflammatory cells on the wound are carried out before the first treatment, and on the 3rd and 7th day of treatment to compare the differences in the distribution type (Monocytes/Neutrophils/Lymphocytes) and quantity(No infiltration, mild infiltration, moderate infiltration, severe infiltration) of inflammatory cells on the wound among the two groups. mild infiltration refers to the infiltration of less than or equal to 10 inflammatory cells; moderate infiltration refers to the infiltration of 11-50 inflammatory cells; severe infiltration refers to the infiltration of more than 50 inflammatory cells.
Day0, Day3,Day7
Detection rate of bacteria/drug-resistant bacteria on the wound and their correlation with the detection rate of bacterial biofilm
According to the test results, the number of bacteria positive cases and number of drug-resistant positive bacteria cases are counted, and the difference in anti-infection ability of the two groups after 3 and 7 days of wound treatment is compared by the number of positive cases/total number of burn patients in each group and the number of drug-resistant bacteria positive cases/total number of burn patients in each group.
Day0, Day3,Day7
Eignungskriterien

Zugelassene Altersgruppen
Erwachsene, Ältere Erwachsene
Mindestalter
18 Years
Zugelassene Geschlechter
Alle
  • 1. Voluntarily sign the informed consent form;
  • 2. ≥18 years old;
  • 3. Patients with chronic wound, eg. burns, and pressure injuries with stage 3 and 4. Diabetes foot ulcer with Wagner grade 2; (Staging and Wagner grading of stress injury can be found in attachments 1 and 2);
  • 4. The length and width of a single wound in the wound area where the sampling point is located must be ≥2 cm, and the maximum length and width must be ≤10 cm;
  • 5. The rapid smear test results of bacteria on the wound were positive;
  • 6. The clinical symptoms of wound infection meet the following conditions: skin infection level scale score (SIRS) ≥ 8;
  • 7. Patients identified by the investigator as having biofilm formation on the wound;
  • 8. No eschar covering the wound surface.

  • 1. Patients administered with systemic antibiotics 48 hours before enrollment;
  • 2. Patients with severe autoimmune diseases;
  • 3. Patients with pressure injuries classified as Stage I and II; (Please refer to Attachment 1 for for pressure injury staging);
  • 4. Diabetes foot ulcer with Wagner grade0- 1 and more than 3; (Wagner grading of stress injury can be found in attachments 2);
  • 5. Female in pregnancy or lactation period;
  • 6. Those who have participated in clinical trials of drugs or devices within one month before the first treatment;
  • 7. Patients who are allergic to any component of the research device;
  • 8. Those who are currently using tumor chemotherapy drugs during screening;
  • 9. Any condition that, in the opinion of the investigator, may increase the risk to the subjects or otherwise affect the evaluation of efficacy.
The First Hospital of Jilin University logoThe First Hospital of Jilin University
Zentrale Studienkontakte
Kontakt: Jia'ao Yu, Professor, +86 13804337395, [email protected]
Kontakt: Xinxin Gao, Ph.D., +86 13804337395, [email protected]
3 Studienstandorte in 1 Ländern

Fujian

Fujian Medical University Union Hospital, Fuzhou, Fujian, China
Chenjian Zhong, Ph.D, Kontakt
Xintian Zhang, Kontakt
Noch nicht rekrutierend

Jilin

First Hospital of Jilin University, Changchun, Jilin, China
Xinxin Gao, Ph.D, Kontakt, +86 13804337395, [email protected]
Offene Rekrutierung

Shenzhen

Shenzhen Second People's Hospital, Shenzhen, Shenzhen, China
Yating Wei, Ph.D, Kontakt
Rong Zhong, Kontakt
Noch nicht rekrutierend