Recruiting
Phase 2
Phase 3

OTL78 & NIR

Sponsor:

Clinton Bahler

Code:

NCT07725523

Conditions

Prostate Cancer Surgery

Prostate Cancer Metastatic Disease

Eligibility Criteria

Sex: Male

Age: 18+

Healthy Volunteers: Not accepted

Interventions

0.06 mg/kg ZOPOCIANINE given 1-7 days prior to surgery

Study Details

Brief summary:

This is a trial to assess the accuracy of an imaging agent, PSMA targeted fluorescent dye OTL78 (zopocianine), in combination with Near InfraRed (NIR) fluorescent imaging, to improve the detection of malignant (growing in an uncontrolled way) tissue in adult patients undergoing standard of care prostatectomy and lymph node dissection for biopsy confirmed prostate cancer. This trial is intended to confirm results from previous Phase 2 dose finding studies and to support the dose selection for subsequent Phase 3 development.

Conditions

Prostate Cancer Surgery

Prostate Cancer Metastatic Disease

Study ID

NCT07725523

Start date

Dec, 2026

Status verified date

Oct, 2026

Completion date

Sep, 2027

Anticipated

Primary completion date

Jul, 2027

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: Male

Age: 18+

Healthy Volunteers: Not accepted

Inclusion Criteria:

1. Provision of signed and dated informed consent and HIPAA form
2. Male participants 18 years of age and older
3. Known primary prostate cancer and any one of the following:

1. Grade group 3-5;
2. Suspected extra-prostatic extension (EPE) or seminal vesicle invasion (SVI);
3. Suspected lymph node metastasis (clinical stage cN1) by magnetic resonance imaging or by Prostate Specific Membrane Antigen positron emission tomography
4. Planned to undergo a standard of care robotic prostatectomy and lymph node dissection
5. Ability to understand the requirements of the study and agree to abide by the study restrictions and to return for the required assessments
6. Agree to use a medically acceptable method of birth control (e.g., spermicide in conjunction with a barrier such as a condom) or sexual abstinence for the duration of the study, including through final study visit (6 weeks) after the dose of study drug. Sperm donation is prohibited during the study and for 3 months after the dose of study drug. Female partners must use hormonal or barrier contraception unless postmenopausal or abstinent.
7. Participant scheduled to have or has had a PSMA-PET Scan for surgical treatment planning within 12 months of surgery.

Exclusion Criteria:

1. The surgeon plans to perform an extraperitoneal approach
2. History of anaphylactic reactions to products containing indocyanine green
3. History of allergy to any of the components of ZOPOCIANINE:

1. 2-\[3-(1,3-dicarboxypropyl)ureido\] pentanedioic acid (DUPA)
2. Polyethylene glycol-dipeptide linker
3. Chlorodye
4. Impaired renal or hepatic function:

1. Renal: creatinine clearance (eGFR) < 50 mL/min
2. Hepatic: total bilirubin > 2 × upper limit of normal or ALT/AST > 3 × upper limit of normal.
5. Participant with QTc interval ≥ 470 msec per electrocardiogram (ECG) at screening calculated via the Bazett formula.
6. Significant acute or chronic medical, neurologic, or illness in the participant that, in the judgment of the Principal Investigator, could compromise participant safety, limit the ability to complete the study, and/or compromise the objectives of the study.

Study Design

Enrollment

45 participants

Anticipated

Intervention Model

Single group

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: 0.06 mg/kg ZOPOCIANINE given 1-7 days prior to surgery

A single dose of 0.06 mg/kg ZOPOCIANINE (given 1-7 days prior to surgery) used with NIR fluorescent imaging following completion of planned prostatectomy and lymph node dissection for biopsy confirmed prostate cancer.

Interventions

0.06 mg/kg ZOPOCIANINE given 1-7 days prior to surgery

A single dose of 0.06 mg/kg ZOPOCIANINE used with NIR fluorescent imaging following completion of planned prostatectomy and lymph node dissection

Primary outcome measure

  • Proportion of subjects who have a Clinically Significant Event [ Time Frame: Day of surgery ]

Central Contacts and Locations

Central contacts

Locations

Indiana University Health North Hospital

Recruiting

Carmel, Indiana, United States, 46032

Contacts

Principal Investigator:

Clint Bahler, MD

Indiana University School of Medicine

Recruiting

Indianapolis, Indiana, United States, 46202

Contacts

Principal Investigator:

Clint Bahler, MD

More Information

Sponsor

Clinton Bahler

Last update posted

Oct 22, 2026

Last verified

Oct, 2026

Keywords

  • Prostate Specific Membrane Antigen
  • Fluorescent Imaging
  • Near infrared imaging

Trial information was received from ClinicalTrials.gov and was last updated on 2026-10-23. This information was provided to ClinicalTrials.gov by Clinton Bahler on 2026-10-22. Recruitment status is synced daily from ClinicalTrials.gov and may not reflect the sponsor's current status. Confirm during your call.