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OTL38 for Intra-operative Imaging of Folate Receptor Positive Ovarian Cancer

A Phase 3, Randomized, Single Dose, Open-Label Study to Investigate the Safety and Efficacy of OTL38 Injection (OTL38) for Intra-operative Imaging of Folate Receptor Positive Ovarian Cancer

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03180307
Enrollment
140
Registered
2017-06-08
Start date
2018-01-26
Completion date
2020-10-16
Last updated
2022-02-04

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

Conditions

Ovarian Cancer

Brief summary

This is a phase 3, randomized, multi-center, single dose, open label, pivotal study in patients diagnosed with, or with high clinical suspicion of, ovarian cancer scheduled to undergo primary surgical cytoreduction, interval debulking, or recurrent ovarian cancer surgery.

Detailed description

The Phase 3 study is to confirm the efficacy of OTL38 in combination with fluorescent light to detect additional Folate Receptor-positive (FR+) ovarian cancer lesions not detected by palpation and visualization under normal light in patients with FR+ ovarian cancer scheduled to undergo primary surgical cytoreduction, interval debulking, or recurrent ovarian cancer surgery

Interventions

DRUGOTL38

0.025 mg/kg of OTL38 in 250ml dextrose 5% in water (D5W) infused intravenously over 60 minutes

Infrared imaging used to excite OTL38 for fluorescence

PROCEDURElaparotomy

primary surgical cytoreduction, interval debulking, or recurrent ovarian cancer surgery

Sponsors

SynteractHCR
CollaboratorINDUSTRY
On Target Laboratories, LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* Female patients 18 years of age and older * Have a primary diagnosis, or at high clinical suspicion, of primary ovarian cancer (of epithelial type), planned for primary surgical cytoreduction, interval debulking, or have recurrent ovarian cancer surgery, and: * Who are scheduled to undergo laparotomy for the debulking surgery OR * Who are scheduled to undergo laparoscopy and pre-authorized to undergo laparotomy for the debulking surgery if cancer is detected on the laparoscopy * A negative serum pregnancy test at Screening followed by a negative urine pregnancy test on the day of surgery or day of admission for female patients of childbearing potential * Female patients of childbearing potential or less than 2 years postmenopausal agree to use an acceptable form of contraception from the time of signing informed consent until 30 days after study completion * Ability to understand the requirements of the study, provide written informed consent for participation in the study and authorization of use and disclosure of protected health information, and agree to abide by the study restrictions and to return for the required assessments

Exclusion criteria

* Previous exposure to OTL38 * Known FR-negative ovarian cancer * Planned surgical debulking via laparoscopy or robotic surgery, with no intent of laparotomy. * Patients with known ovarian cancer miliary disease determined preoperatively to be inoperable. * Any medical condition that, in the opinion of the investigators, could potentially jeopardize the safety of the patient * History of anaphylactic reactions * History of allergy to any of the components of OTL38, including folic acid * Pregnancy or positive pregnancy test * Clinically significant abnormalities on electrocardiogram (ECG) * Presence of any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule * Impaired renal function defined as eGFR\< 50 mL/min/1.73m2 * Impaired liver function defined as values \> 3x the upper limit of normal (ULN) for alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), or total bilirubin. * Known Stage IV ovarian cancer with brain metastases * Received an investigational agent in another clinical trial within 30 days prior to surgery * Known sensitivity to fluorescent light

Design outcomes

Primary

MeasureTime frameDescription
Efficacy Patient Level30 daysPercentage of patients with at least one evaluable FR+ ovarian cancer lesion confirmed by central pathology (Standard of truth) that was detected using the combination of OTL38 and fluorescent light but not under normal light or palpation (Full Analysis Set)

Secondary

MeasureTime frameDescription
Patient False Positive Rate30 daysFalse Positive Rate at the patient level (FPRp) will be a major secondary efficacy endpoint and is defined as the percentage of women who underwent both normal light and fluorescent light (Intent-to-Image Set)

Countries

Netherlands, United States

Participant flow

Participants by arm

ArmCount
Experimental: OTL38 Injection and Near Infrared Imaging
Patient injected with OTL38 and undergoes near infrared imaging. Drug: OTL38 0.025 mg/kg of OTL38 in 250ml dextrose 5% in water (D5W) infused intravenously over 60 minutes Other Names: OTL38 for Injection Device: near infrared camera imaging system Infrared imaging used to excite OTL38 for fluorescence Other Names: Near IR imaging Procedure/Surgery: laparotomy primary surgical cytoreduction, interval debulking, or recurrent ovarian cancer surgery
134
Sham Comparator: OTL38 Injection and No Fluorescent Imaging
Patient injected with OTL38, but does not undergo fluorescent imaging. Drug: OTL38 0.025 mg/kg of OTL38 in 250ml dextrose 5% in water (D5W) infused intravenously over 60 minutes Other Names: OTL38 for Injection Procedure/Surgery: laparotomy primary surgical cytoreduction, interval debulking, or recurrent ovarian cancer surgery
6
Total140

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath10
Overall StudyLost to Follow-up20
Overall StudyMajority of which were disease too extensive and camera not used30

Baseline characteristics

CharacteristicSham Comparator: OTL38 Injection and No Fluorescent ImagingTotalExperimental: OTL38 Injection and Near Infrared Imaging
Age, Continuous62.8 years
STANDARD_DEVIATION 21.77
60.8 years
STANDARD_DEVIATION 11.39
60.4 years
STANDARD_DEVIATION 10.91
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants17 Participants15 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants120 Participants116 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants3 Participants3 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants4 Participants4 Participants
Race (NIH/OMB)
Asian
1 Participants6 Participants5 Participants
Race (NIH/OMB)
Black or African American
0 Participants7 Participants7 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants4 Participants4 Participants
Race (NIH/OMB)
White
5 Participants119 Participants114 Participants
Sex: Female, Male
Female
6 Participants140 Participants134 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
2 / 150
other
Total, other adverse events
34 / 150
serious
Total, serious adverse events
22 / 150

Outcome results

Primary

Efficacy Patient Level

Percentage of patients with at least one evaluable FR+ ovarian cancer lesion confirmed by central pathology (Standard of truth) that was detected using the combination of OTL38 and fluorescent light but not under normal light or palpation (Full Analysis Set)

Time frame: 30 days

ArmMeasureValue (NUMBER)
Full Analysis SetEfficacy Patient Level26.9 percentage of participants
Secondary

Patient False Positive Rate

False Positive Rate at the patient level (FPRp) will be a major secondary efficacy endpoint and is defined as the percentage of women who underwent both normal light and fluorescent light (Intent-to-Image Set)

Time frame: 30 days

ArmMeasureValue (NUMBER)
Full Analysis SetPatient False Positive Rate20.2 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 15, 2026