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Indigotindisulfonaat-natriuminjectie, USP als hulpmiddel bij het bepalen van de ureterale doorgankelijkheid

4 november 2026 bijgewerkt door: Prove pharm

Een open-label, gerandomiseerde, multicentrische studie om de veiligheid, werkzaamheid en tevredenheid van artsen te evalueren van twee verschillende doses Bludigo™ (Indigotindisulfonaat-natriuminjectie, USP) 0,8% bij gebruik als hulpmiddel bij het bepalen van de doorgankelijkheid van de ureter

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.

Studie Overzicht

Gedetailleerde beschrijving

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.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

117

Fase

  • Fase 4

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

    • New York
      • Albany, New York, Verenigde Staten, 12008
        • Albany Medical Center

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar tot 85 jaar (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

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

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Diagnostisch
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Crossover-opdracht
  • Masker: Verviervoudigen

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Placebo-vergelijker: Saline

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

Placebo

Experimenteel: 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
Experimenteel: 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

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Paired sample difference (Bludigo™-Saline) in urine jet conspicuity score .
Tijdsspanne: 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
Tijdsspanne: 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

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Incidence of adverse events and serious adverse events.
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 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)
Tijdsspanne: 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)
Tijdsspanne: 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)
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 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

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Onderzoekers

  • Studie directeur: Michelle Boytim, Ph.D., Provepharm SAS

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

12 oktober 2023

Primaire voltooiing (Werkelijk)

30 maart 2026

Studie voltooiing (Werkelijk)

31 maart 2026

Studieregistratiedata

Eerst ingediend

30 augustus 2023

Eerst ingediend dat voldeed aan de QC-criteria

19 september 2023

Eerst geplaatst (Werkelijk)

26 september 2023

Updates van studierecords

Laatste update geplaatst (Werkelijk)

5 november 2026

Laatste update ingediend die voldeed aan QC-criteria

4 november 2026

Laatst geverifieerd

1 november 2026

Meer informatie

Termen gerelateerd aan deze studie

Andere studie-ID-nummers

  • PVP-22IC04

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Ja

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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