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Intraoperative Folate Targeted Fluorescence in Renal Cell Carcinoma

Intraoperative Folate Targeted Fluorescence in Renal Cell Carcinoma

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02645409
Enrollment
14
Registered
2016-01-01
Start date
2015-12-29
Completion date
2019-04-02
Last updated
2020-02-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Renal Cell Carcinoma

Keywords

Fluorescence, Imaging, Partial nephrectomy, Radical nephrectomy

Brief summary

Primary • To explore the use of OTL38 and fluorescence imaging to detect RCC in partial nephrectomy at the margins of resection, and in lymph node(s) or other metastases during radical nephrectomy.

Detailed description

Administration of the study drug, OTL38, will begin prior to skin incision in the preoperative area where safety monitoring will occur. The tumor resection occurs approximately 2 hours after being brought back to the operating room and so there is no wait time between infusion and being taken back to operating room. Intraoperative fluorescent imaging will be utilized in parallel with the standard operating procedure to capture images during surgery. Images also will be taken of the excised specimen on the back table. The excised specimen will be sent to the pathology department for fluorescent imaging and immunohistochemistry for FR. Subjects will have a 2-5 day hospital stay (normal nephrectomy recovery period) where safety measurements will be taken. Final safety measurements will be taken at the 10-day and 1-month follow-up visits.

Interventions

DRUGOTL38

OTL38 is a folate analog conjugated with a fluorescent dye that emits light in the near infrared spectrum. This longer wavelength allows for deeper penetration of the fluorescent light through tissues with the potential to better image tumors beneath adipose tissue or deeper into organ parenchyma.

DEVICEIntraoperative fluorescence imaging system

Sponsors

Chandru Sundaram
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

for localized RCC treated with partial nephrectomy To be considered eligible to participate in this study, a patient must meet all the inclusion criteria listed below: * ≥ 18 years of age. * Have primary or suspected diagnosis of RCC, with presence of cT1-2 renal mass by diagnostic CT assessment. * Scheduled for partial nephrectomy of renal mass. * Expected survival of at least 3 months. * Written informed consent available. * ECOG ≤ 1 (Appendix G). * Negative serum or urine pregnancy test within 24 hours for females of child bearing age * Recovered from toxicity of any prior therapy to ≥ grade 1. Inclusion criteria for advanced RCC treated with radical nephrectomy To be considered eligible to participate in this study, a patient must meet all the inclusion criteria listed below: * ≥ 18 years of age. * Have pathologic or suspected diagnosis of RCC with presence of cT1-4 renal mass and evidence of nodal or metastatic involvement by diagnostic CT assessment * Scheduled for radical nephrectomy and lymph node dissection. * Expected survival of at least 3 months. * ECOG ≤ 2. * Negative serum or urine pregnancy test within 24 hours for females of child bearing age. * Recovered from toxicity of any prior therapy to ≥ grade 1 * Written informed consent available.

Exclusion criteria

for both localized and advanced RCC * History of any anaphylactic reaction, any severe allergy, or any allergy to folate. * Brain metastases * Baseline GFR \< 50 mL/min/1.73m2) * Hepatic toxicity ≥ Grade 2 (using CTCAE version 4 standard definitions). * Participation in another investigational drug trial either concurrently or 30 days prior to surgery * Any medical condition that in the opinion of the investigators could potentially jeopardize the safety of the patient, limit the patient's ability to complete the study, and/or compromise the objectives of the study. * Known sensitivity to fluorescent light

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Presence of Fluorescence of cT1 RCC in Partial Nephrectomy SpecimensDuring procedure, an average of 2 hoursPathology results will be compared with immunohistochemistry results for each patient. Fluorescence will be looked for in the margins of resection for partial nephectomy and in regional lymph nodes and metastases for radical nephrectomy.

Countries

United States

Participant flow

Participants by arm

ArmCount
Partial Nephrectomy
OTL38 will be given approximately 2 hours before surgery. Intraoperative fluorescent imaging will utilized in parallel with standard operating procedures for partial nephrectomy. Photographs of the surgery field and tumor (ex-vivo) will be taken under normal light and fluorescent light. OTL38: OTL38 is a folate analog conjugated with a fluorescent dye that emits light in the near infrared spectrum. This longer wavelength allows for deeper penetration of the fluorescent light through tissues with the potential to better image tumors beneath adipose tissue or deeper into organ parenchyma. Intraoperative fluorescence imaging system
10
Radical Nephrectomy
OTL38 will be given approximately 2 hours before surgery. Intraoperative fluorescent imaging will utilized in parallel with standard operating procedures for radical nephrectomy. Photographs of the surgery field and tumor (ex-vivo) will be taken under normal light and fluorescent light. OTL38 is a folate analog conjugated with a fluorescent dye that emits light in the near infrared spectrum. This longer wavelength allows for deeper penetration of the fluorescent light through tissues with the potential to better image tumors beneath adipose tissue or deeper into organ parenchyma.
0
Total10

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyPhysician Decision10
Overall StudyWithdrawal by Subject30

Baseline characteristics

CharacteristicTotalPartial Nephrectomy
Age, Customized
50-70
10 Participants10 Participants
BMI29.4 kg/m^229.4 kg/m^2
Negative Post-Surgical Margins10 Participants10 Participants
Pathologic Tumor Stage
Benign
1 Participants1 Participants
Pathologic Tumor Stage
pT1a
8 Participants8 Participants
Pathologic Tumor Stage
pT3a
1 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants
Race (NIH/OMB)
White
10 Participants10 Participants
Region of Enrollment
United States
10 participants10 participants
Sex: Female, Male
Female
1 Participants1 Participants
Sex: Female, Male
Male
9 Participants9 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 100 / 0
other
Total, other adverse events
1 / 100 / 0
serious
Total, serious adverse events
0 / 100 / 0

Outcome results

Primary

Number of Participants With Presence of Fluorescence of cT1 RCC in Partial Nephrectomy Specimens

Pathology results will be compared with immunohistochemistry results for each patient. Fluorescence will be looked for in the margins of resection for partial nephectomy and in regional lymph nodes and metastases for radical nephrectomy.

Time frame: During procedure, an average of 2 hours

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Partial NephrectomyNumber of Participants With Presence of Fluorescence of cT1 RCC in Partial Nephrectomy Specimens10 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026