CClinicalTrials.gg
CompletedNCT05769257Updated May 29, 2024

A Safety and Feasibility Study of IS-001 Injection in Patients Undergoing Robotic Colorectal Surgery

A Phase 2 interventional study of IS-001 in Ureter Injury, sponsored by Intuitive Surgical. Completed at 2 sites in United States. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2024-05-29.

Sponsored by Intuitive Surgical · Phase 2, Interventional, and Prevention

From the registry’s dates

  • Primary completion was Mar 2024, 2 years 6 months ago, and no results have been posted to the registry.
Phase
Phase 2
Study type
Interventional
Enrollment
12
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This study evaluates the safety and feasibility of intravenous injection of IS-001 to aid in intraoperative ureter structure delineation

Read the detailed description

Injury to the ureter, the duct by which urine passes from the kidney into the bladder, is a well-known and serious complication of pelvic and abdominal surgery that frequently goes unrecognized intraoperatively. This study seeks to evaluate the safety and feasibility of intravenous IS-001 injection to improve surgeon ureter visualization during robotic-assisted surgery with the da Vinci® Surgical System and Firefly® imaging.

02

Conditions studied

  • Ureter Injury
03

In context

Lead sponsor

Intuitive Surgical is the lead sponsor of 62 studies on the registry; 7 are open to participants now.

Of its 7 completed or terminated interventional studies of FDA-regulated products, 1 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Male and female subjects between the ages of 18 and 75, inclusive
  2. Subject is scheduled to undergo robotic-assisted rectal, sigmoid, or left colon resection surgery using the da Vinci® X/Xi Surgical System with Firefly® Fluorescent Imaging

Exclusion criteria

Exclusion Criteria:

  1. Subject is pregnant or nursing
  2. Subject has known hepatitis B virus (HBV) or hepatitis C virus (HCV) infection
  3. Subject has any of the following screening laboratory values:

    1. eGFR \< 60 mL/min/1.73 m\^2
    2. Aspartate aminotransferase (AST) or serum glutamic oxaloacetic transaminase ≥ 2.5 × ULN
    3. Alanine aminotransferase (ALT) or serum glutamic pyruvic transaminase ≥ 2.5 × ULN
  4. Subject is already enrolled in another investigational drug or device study receiving therapeutic agents within the past 6 months
  5. Subject has any other condition or personal circumstance that, in the judgment of the Investigator, might interfere with the collection of complete quality data or represents an unacceptable safety profile
  6. Subjects with known or suspected hypersensitivity to indocyanine green (ICG) or any components of the formulation used.
05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
12 participants (actual)

Study arms

  • Experimental
    Single Arm

    Single Arm Safety and Feasibility Study of IS-001 with 20 mg in Multiple Injections

    Drug: IS-001

Interventions

  • DrugIS-001

    Intravenous injection of IS-001 investigational drug

06

What researchers measure

Primary outcomes

  1. Evaluate ureter visualization by Independent Reader

    Independent reader assessment of ureter visibility of a 5 second video segment of the surgical field in both Firefly® and standard white light comparator mode on a Five-point rating scale where 1 = Not Visible, 1 = Questionably Visible, 3 = Low Visibility, 4 = Visible, 5 = Clearly Visible

    Time frame: 10 minutes after first IS-001 injection during surgery

  2. Evaluate ureter visualization by Independent Reader

    Independent reader assessment of ureter visibility of a 5 second video segment of the surgical field in both Firefly® and standard white light comparator mode on a Five-point rating scale where 1 = Not Visible, 1 = Questionably Visible, 3 = Low Visibility, 4 = Visible, 5 = Clearly Visible

    Time frame: 30 minutes after first IS-001 injection during surgery

  3. Evaluate ureter visualization by Independent Reader

    Independent reader assessment of ureter visibility of a 5 second video segment of the surgical field in both Firefly® and standard white light comparator mode on a Five-point rating scale where 1 = Not Visible, 1 = Questionably Visible, 3 = Low Visibility, 4 = Visible, 5 = Clearly Visible

    Time frame: 45 minutes after first IS-001 injection during surgery

  4. Evaluate ureter visualization by Independent Reader

    Independent reader assessment of ureter visibility of a 5 second video segment of the surgical field in both Firefly® and standard white light comparator mode on a Five-point rating scale where 1 = Not Visible, 1 = Questionably Visible, 3 = Low Visibility, 4 = Visible, 5 = Clearly Visible

    Time frame: 10 minutes after second IS-001 injection during surgery

  5. Evaluate ureter visualization by Independent Reader

    Independent reader assessment of ureter visibility of a 5 second video segment of the surgical field in both Firefly® and standard white light comparator mode on a Five-point rating scale where 1 = Not Visible, 1 = Questionably Visible, 3 = Low Visibility, 4 = Visible, 5 = Clearly Visible

    Time frame: 30 minutes after second IS-001 injection during surgery

  6. Evaluate ureter visualization by Independent Reader

    Independent reader assessment of ureter visibility of a 5 second video segment of the surgical field in both Firefly® and standard white light comparator mode on a Five-point rating scale where 1 = Not Visible, 1 = Questionably Visible, 3 = Low Visibility, 4 = Visible, 5 = Clearly Visible

    Time frame: 45 minutes after second IS-001 injection during surgery

Secondary outcomes

  1. Evaluate ureter visualization by Intra-operative surgeon

    Intra-operative surgeon assessment of ureter visibility in both Firefly® and standard white light comparator mode on a Five-point rating scale where 1 = Not Visible, 1 = Questionably Visible, 3 = Low Visibility, 4 = Visible, 5 = Clearly Visible

    Time frame: 10 minutes after first IS-001 injection during surgery

  2. Evaluate ureter visualization by Intra-operative surgeon

    Intra-operative surgeon assessment of ureter visibility in both Firefly® and standard white light comparator mode on a Five-point rating scale where 1 = Not Visible, 1 = Questionably Visible, 3 = Low Visibility, 4 = Visible, 5 = Clearly Visible

    Time frame: 30 minutes after first IS-001 injection during surgery

  3. Evaluate ureter visualization by Intra-operative surgeon

    Intra-operative surgeon assessment of ureter visibility in both Firefly® and standard white light comparator mode on a Five-point rating scale where 1 = Not Visible, 1 = Questionably Visible, 3 = Low Visibility, 4 = Visible, 5 = Clearly Visible

    Time frame: 45 minutes after first IS-001 injection during surgery

  4. Evaluate ureter visualization by Intra-operative surgeon

    Intra-operative surgeon assessment of ureter visibility in both Firefly® and standard white light comparator mode on a Five-point rating scale where 1 = Not Visible, 1 = Questionably Visible, 3 = Low Visibility, 4 = Visible, 5 = Clearly Visible

    Time frame: 10 minutes after second IS-001 injection during surgery

  5. Evaluate ureter visualization by Intra-operative surgeon

    Intra-operative surgeon assessment of ureter visibility in both Firefly® and standard white light comparator mode on a Five-point rating scale where 1 = Not Visible, 1 = Questionably Visible, 3 = Low Visibility, 4 = Visible, 5 = Clearly Visible

    Time frame: 30 minutes after second IS-001 injection during surgery

  6. Evaluate ureter visualization by Intra-operative surgeon

    Intra-operative surgeon assessment of ureter visibility in both Firefly® and standard white light comparator mode on a Five-point rating scale where 1 = Not Visible, 1 = Questionably Visible, 3 = Low Visibility, 4 = Visible, 5 = Clearly Visible

    Time frame: 45 minutes after second IS-001 injection during surgery

  7. Ureter Delineation Efficacy as Length of Line Drawn

    Independent reader assessment of ureter delineation on a still frame of the surgical field in both Firefly® and standard white light comparator mode. Length of line drawn on still frame where ureter is visible to independent reader is compared between imaging conditions.

    Time frame: 10 minutes after first IS-001 injection during surgery

  8. Ureter Delineation Efficacy as Length of Line Drawn

    Independent reader assessment of ureter delineation on a still frame of the surgical field in both Firefly® and standard white light comparator mode. Length of line drawn on still frame where ureter is visible to independent reader is compared between imaging conditions.

    Time frame: 30 minutes after first IS-001 injection during surgery

  9. Ureter Delineation Efficacy as Length of Line Drawn

    Independent reader assessment of ureter delineation on a still frame of the surgical field in both Firefly® and standard white light comparator mode. Length of line drawn on still frame where ureter is visible to independent reader is compared between imaging conditions.

    Time frame: 45 minutes after first IS-001 injection during surgery

  10. Ureter Delineation Efficacy as Length of Line Drawn

    Independent reader assessment of ureter delineation on a still frame of the surgical field in both Firefly® and standard white light comparator mode. Length of line drawn on still frame where ureter is visible to independent reader is compared between imaging conditions.

    Time frame: 10 minutes after second IS-001 injection during surgery

  11. Ureter Delineation Efficacy as Length of Line Drawn

    Independent reader assessment of ureter delineation on a still frame of the surgical field in both Firefly® and standard white light comparator mode. Length of line drawn on still frame where ureter is visible to independent reader is compared between imaging conditions.

    Time frame: 30 minutes after second IS-001 injection during surgery

  12. Ureter Delineation Efficacy as Length of Line Drawn

    Independent reader assessment of ureter delineation on a still frame of the surgical field in both Firefly® and standard white light comparator mode. Length of line drawn on still frame where ureter is visible to independent reader is compared between imaging conditions.

    Time frame: 45 minutes after second IS-001 injection during surgery

  13. Evaluate fluorescent intensity of ureter by signal to background analysis

    Fluorescent intensity of ureter evaluated as signal to background

    Time frame: 10 minutes after first IS-001 injection during surgery

  14. Evaluate fluorescent intensity of ureter by signal to background analysis

    Fluorescent intensity of ureter evaluated as signal to background

    Time frame: 30 minutes after first IS-001 injection during surgery

  15. Evaluate fluorescent intensity of ureter by signal to background analysis

    Fluorescent intensity of ureter evaluated as signal to background

    Time frame: 45 minutes after first IS-001 injection during surgery

  16. Evaluate fluorescent intensity of ureter by signal to background analysis

    Fluorescent intensity of ureter evaluated as signal to background

    Time frame: 10 minutes after second IS-001 injection during surgery

  17. Evaluate fluorescent intensity of ureter by signal to background analysis

    Fluorescent intensity of ureter evaluated as signal to background

    Time frame: 30 minutes after second IS-001 injection during surgery

  18. Evaluate fluorescent intensity of ureter by signal to background analysis

    Fluorescent intensity of ureter evaluated as signal to background

    Time frame: 45 minutes after second IS-001 injection during surgery

  19. Safety 12-Lead EKG Change from Baseline

    12-Lead EKG change from baseline in QTc

    Time frame: 6 hours after first IS-001 injection post surgery

  20. Incidence of abnormal blood work in tests results

    Safety hematology complete blood count laboratory assessments Change from Baseline

    Time frame: Before same-day discharge or 24 hours after first IS-001 injection post surgery

  21. Incidence of abnormal blood work in tests results

    Safety hematology comprehensive metabolic panel laboratory assessments Change from Baseline

    Time frame: Before same-day discharge or 24 hours after first IS-001 injection post surgery

  22. Incidence of abnormal blood work in tests results

    Safety hematology complete blood count laboratory assessments Change from Baseline

    Time frame: 14 days post surgery

  23. Incidence of abnormal blood work in tests results

    Safety hematology comprehensive metabolic panel laboratory assessments Change from Baseline

    Time frame: 14 days post surgery

  24. Incidence of abnormal urinalysis results

    Routine urinalysis laboratory assessment change from baseline

    Time frame: 14 days post surgery

  25. Safety Adverse Events Monitoring

    Drug related adverse events monitoring through 14-days

    Time frame: 14 days post surgery

07

Study locations

2 sites
  • St. David's North Austin Medical Center
    Austin, Texas 78758, United States
  • MultiCare Tacoma General Hospital
    Tacoma, Washington 98405, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 29, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05769257
Lead sponsor
Intuitive Surgical
Responsible party
Sponsor
First posted
Mar 15, 2023
Start date
Jun 14, 2023
Primary completion
Mar 18, 2024
Completion
Apr 4, 2024
Last update
May 29, 2024

Study contacts

Thiru Lakshman, MD
principal investigator · St. David's North Austin Medical Center
Laila Rashidi, MD
principal investigator · MultiCare Tacoma General Hospital

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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