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Indigotindisulfonat-Natrium-Injektion, USP als Hilfsmittel bei der Bestimmung der Durchgängigkeit des Ureters

4. November 2026 aktualisiert von: Prove pharm

Eine offene, randomisierte, multizentrische Studie zur Bewertung der Sicherheit, Wirksamkeit und Zufriedenheit der Ärzte mit zwei verschiedenen Dosen von Bludigo™ (Indigotindisulfonat-Natrium-Injektion, USP) 0,8 % bei Verwendung als Hilfsmittel zur Bestimmung der Durchgängigkeit des Ureters

This is a randomized, multicenter study to evaluate the efficacy and safety of two dose levels (2.5 mL and 5.0 mL) of Bludigo when used as an aid in the determination of ureteral patency.

Studienübersicht

Status

Abgeschlossen

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

Subjects scheduled for a surgical procedure in which the patency of the ureter must be assessed by cystoscopy following the procedure, age 18 to 85 years inclusive, will be screened for participation. Screening will occur within 30 days before study drug administration (Day of Surgery). After signing the informed consent, review of inclusion and exclusion criteria will be performed, the collection of concomitant medications, medical history, physical examination, baseline laboratory testing, 12-lead ECG, and vital sign measurements will be completed during the screening visit.

On the day of surgery (Day 1) subjects will be evaluated for eligibility for randomization. Eligible subjects will be stratified by BMI (<30.0 kg/m2or ≥ 30.0 kg/m2) and randomized in a 1:1 ratio to receive a dose of either Bludigo™ high dose (5.0 mL) or Bludigo™ low dose (2.5 mL). Each randomized subject will serve as his/her own control (i.e., intra-patient controlled) by receiving a dose of normal saline prior to receiving the randomized Bludigo™ dose.

All treated subjects will have a follow-up visit 7 to 30 days (± 2 days) after the procedure. A final telephone follow-up call will occur on Day 30 (± 2 days) in subjects who have the follow-up visit before Day 28. Safety assessments will include monitoring of AEs during and post the procedure, clinical laboratory tests, 12-Lead ECG, and vital sign measurements.

Studientyp

Interventionell

Einschreibung (Tatsächlich)

117

Phase

  • Phase 4

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

    • New York
      • Albany, New York, Vereinigte Staaten, 12008
        • Albany Medical Center

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre bis 85 Jahre (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

Inclusion Criteria:

  • Subjects between ≥ 18 and ≤ 85 years old
  • Subjects who signed a written IRB approved, informed consent form
  • Subjects scheduled for a surgical procedure in which the patency of the ureter must be assessed by cystoscopy following the procedure

Exclusion Criteria:

  • Subjects with stage 4 or 5 Chronic Kidney Failure as evidenced by a GFR <30 mL/min (calculated using the MDRD formula and standardized by using individual's body surface area) or need for dialysis in the near future, or having only 1 kidney
  • Subjects with known severe hypersensitivity reactions to Bludigo™ or other dyes, including contrast dyes
  • Known history of drug or alcohol abuse within 6 months prior to the time of screening visit
  • Subjects, as assessed by the Investigator, with conditions/concomitant diseases precluding their safe participation in this study (e.g. major systemic diseases)
  • Unable to meet specific protocol requirements (e.g., scheduled visits) or subject is uncooperative or has a condition that could lead to non-compliance with the study procedures
  • Subject is the Investigator or any Sub-Investigator, research assistant, pharmacist, study coordinator, other staff or relative thereof directly involved in the conduct of the protocol
  • Subjects with life expectancy < 6 months
  • Requirement for concomitant treatment that could bias primary evaluation.
  • Subjects who are pregnant or breast-feeding

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Diagnose
  • Zuteilung: Zufällig
  • Interventionsmodell: Crossover-Aufgabe
  • Maskierung: Vervierfachen

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Placebo-Komparator: Saline

116 subjects treated with 5 ml of saline then crossover to treatment arm

Placebo

Experimental: High Dose

58 subjects randomly treated with 5 mL of drug

Placebo

Experimental contrast dye that is commonly used as a visualization aid in pelvic and abdominal surgeries and for various diagnostic procedures in medical practice.

Andere Namen:
  • Bludigo
Experimental: Low Dose

58 subjects randomly treated with 2.5 mL of drug

Placebo

Experimental contrast dye that is commonly used as a visualization aid in pelvic and abdominal surgeries and for various diagnostic procedures in medical practice.

Andere Namen:
  • Bludigo

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Paired sample difference (Bludigo™-Saline) in urine jet conspicuity score .
Zeitfenster: 10 minutes post study drug administration

Visualization will be measured by a conspicuity scale designed to provide an objective tool applicable to the visualization of the urinary flow from the ureteral orifices when determining ureter patency. The conspicuity of the urine flow from the ureteral orifices is defined using the 5-point conspicuity score as follows:

  1. = No jet observed
  2. = Weak jet, little color contrast
  3. = Color contrast or significant jet flow
  4. = Strong jet flow with good color contrast
  5. = Strong jet flow with striking contrast in color

Paired sample difference (Bludigo™-Saline) in conspicuity score (PSDCS). PSDCS will be calculated for each ureter (left or right) for each subject from each reviewer.

10 minutes post study drug administration
Responders to Bludigo
Zeitfenster: 10 Minutes post study drug administration

Visualization will be measured by a conspicuity scale designed to provide an objective tool applicable to the visualization of the urinary flow from the ureteral orifices when determining ureter patency. The conspicuity of the urine flow from the ureteral orifices is defined using the 5-point conspicuity score as follows:

  1. = No jet observed
  2. = Weak jet, little color contrast
  3. = Color contrast or significant jet flow
  4. = Strong jet flow with good color contrast
  5. = Strong jet flow with striking contrast in color

A subject is considered a responder to Bludigo™ if there is >=1 point improvement in the conspicuity score following the Bludigo™- treatment vs the saline treatment and the conspicuity score for the Bludigo™ treatment must be (3, 4, or 5). The responder criteria will be assessed separately for each ureter (left or right) from each reviewer.

10 Minutes post study drug administration

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Incidence of adverse events and serious adverse events.
Zeitfenster: 30 days post study drug administration

Percentage of patients in each treatment group who experience an adverse event post treatment

30 days post study drug administration
Changes in clinical safety laboratory values
Zeitfenster: 30 days post study drug administration

Proportion of subjects with clinically important changes in clinical safety laboratory tests after treatment

30 days post study drug administration
Changes in vital signs post treatment
Zeitfenster: 30 days post study drug administration

Proportion of subjects with clinically important changes in vital signs after treatment

30 days post study drug administration
Changes in ECG post treatment
Zeitfenster: 30 days post study drug administration

Proportion of subjects with clinically important changes in ECGs after treatment

30 days post study drug administration
Changes in blood pressure by dose group and BMI (kg/m^2)
Zeitfenster: 30 days post study drug administration

Comparison of post treatment changes in blood pressure by dose group and BMI (kg/m^2)

30 days post study drug administration
Changes in heart rate by dose group and BMI (kg/m^2)
Zeitfenster: 30 days post study drug administration

Comparison of post treatment changes in heart rate by dose group and BMI (kg/m^2)

30 days post study drug administration
Changes in pulse oximetry by dose group and BMI (kg/m^2)
Zeitfenster: 30 days post study drug administration

Comparison of post treatment changes in pulse oximetry by dose group and BMI (kg/m^2)

30 days post study drug administration
Physician Satisfaction
Zeitfenster: 10 Minutes post study drug administration

To determine physicians' overall satisfaction with the Bludigo™ treatment by assessing the proportion of surgeons who agree using the 5-point Physician Satisfaction Agreement Scale (PSAS) with the statement:

"Compared to the saline treatment, my ability to assess ureter patency was improved after the addition of Bludigo™."

  1. = Strongly Agree
  2. = Agree
  3. = Neither Agree nor Disagree
  4. = Disagree
  5. = Strongly Disagree A surgeon's evaluation is considered satisfactory if the rating is either a 1 (strongly agree) or 2 (agree).
10 Minutes post study drug administration
Time to visualization
Zeitfenster: 10 minutes post study drug administration

To describe the time to visualization (TTV) of blue color in the ureteral jets flow following Bludigo™ treatment

10 minutes post study drug administration

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Ermittler

  • Studienleiter: Michelle Boytim, Ph.D., Provepharm SAS

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

12. Oktober 2023

Primärer Abschluss (Tatsächlich)

30. März 2026

Studienabschluss (Tatsächlich)

31. März 2026

Studienanmeldedaten

Zuerst eingereicht

30. August 2023

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

19. September 2023

Zuerst gepostet (Tatsächlich)

26. September 2023

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

5. November 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

4. November 2026

Zuletzt verifiziert

1. November 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • PVP-22IC04

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

NEIN

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Ja

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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