Title

Phase 2 Study of OTL38 for Intra-operative Imaging of Folate Receptor-alpha Positive Ovarian Cancer
A Phase 2, Single Dose, Open-Label Study to Investigate the Safety and Efficacy of OTL38 Injection (OTL38) for Intra-operative Imaging of Folate Receptor-alpha Positive Ovarian Cancer
  • Phase

    Phase 2
  • Study Type

    Interventional
  • Intervention/Treatment

    pacritinib ...
  • Study Participants

    48
This study is being done to:

test the safety of OTL38
see if OTL38 helps light up the cancer when viewed with the special camera system
test the safety of the special camera system for use along with OTL38 during surgery
Study Started
Dec 31
2014
Primary Completion
Nov 30
2015
Study Completion
Nov 30
2015
Results Posted
Jun 21
2022
Last Update
Jun 21
2022

Drug OTL38

  • Other names: OTL38 for Injection, CYTALUX™ (pafolacianine) injection

Device Near infrared camera imaging system

Near infrared camera imaging system

Procedure Laparotomy

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

Patients Receiving OTL38 Experimental

All patients in this arm will receive OTL38 for injection and undergo intraoperative imaging.

Criteria

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 debulking or interval debulking 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 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 alpha-negative ovarian cancer
Planned surgical approach via laparoscopy or robotic surgery
Any medical condition that in the opinion of the investigators could potentially jeopardize the safety of the patient
History of anaphylactic reactions or severe allergies
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) or aspartate aminotransferase (AST), alkaline phosphatase (ALP), or total bilirubin.
Known Stage IV ovarian cancer with Brain Metastases
Received an investigational agent in another investigational drug or vaccine trial within 30 days prior to surgery
Known sensitivity to fluorescent light

Summary

Patients Receiving OTL38

All Events

Event Type Organ System Event Term Patients Receiving OTL38

Sensitivity of OTL38 in Detecting Folate Receptor-alpha Positive Ovarian Cancer During Surgery.

Sensitivity for the detection of folate receptor-alpha positive (FRAP) ovarian cancer lesions is defined as the ratio (multiplied by 100) of the number of FRAO ovarian cancer lesions confirmed by both fluorescent light and the pathology/ and immunohistochemistry lab (TP) over the number of FRAP ovarian cancer lesions confirmed by the pathology/ and immunohistochemistry lab (TP+FN). 95% lower one-sided confidence interval was used.

Experimental

97.97
percentage of lesions
95% Confidence Interval: 87.75

Positive Predictive Value (PPV) of OTL38 in Detecting Folate Receptor-alpha Positive Ovarian Cancer During Surgery.

PPV for the detection of FRAP ovarian cancer lesions is defined as the ratio (multiplied by 100) of the number of FRAP ovarian cancer lesions confirmed by both fluorescent light and the pathology/ and immunohistochemistry lab (TP) over the number of FRAP ovarian cancer lesions confirmed by fluorescent light (TP + FP). 95% lower one-sided confidence interval was used.

Experimental

94.93
percentage of lesions
95% Confidence Interval: 86.13

Age, Continuous

63.8
years (Mean)
Standard Deviation: 10.19

Age, Categorical

Ethnicity (NIH/OMB)

Race (NIH/OMB)

Region of Enrollment

Sex: Female, Male

Overall Study

OTL38 for Intra-operativeImaging of Folate Receptor-alpha Positive Ovarian Cancer

Drop/Withdrawal Reasons

OTL38 for Intra-operativeImaging of Folate Receptor-alpha Positive Ovarian Cancer