Giving TORL-1-23 with chemotherapy before initial surgery for advanced ovarian, fallopian tube, and primary peritoneal cancer

CATALINA-4: Phase 1B/2 Study of TORL-1-23 With Neoadjuvant Chemotherapy and Interval Cytoreductive Surgery in Newly Diagnosed Patients With Advanced Stage Ovarian Cancer

Phase1; Phase2 Interventional TORL Biotherapeutics, LLC · NCT07322094

This study will test whether adding TORL-1-23 to standard paclitaxel and carboplatin before initial surgery helps women with advanced (FIGO III/IV) ovarian, fallopian tube, or primary peritoneal cancer whose tumors are CLDN6-positive.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Enrollment60 (estimated)
Ages18 Years to 70 Years
SexFemale
SponsorTORL Biotherapeutics, LLC Industry-sponsored
Drugs / interventionschemotherapy, radiation
Locations1 site (Los Angeles, California)
Trial IDNCT07322094 on ClinicalTrials.gov

What this trial studies

This is a Phase 1b/2 neoadjuvant trial adding the investigational agent TORL-1-23 to standard paclitaxel and carboplatin and giving the combination before initial (debulking) surgery. The Phase 1b portion will focus on safety and selecting the recommended dose when combined with chemotherapy, and the Phase 2 portion will look for signs of anti-tumor activity and surgical outcomes. Eligible participants are treatment-naïve women with FIGO stage III or IV epithelial ovarian, fallopian tube, or primary peritoneal cancer that tests positive for CLDN6 and who have adequate organ function and ECOG ≤2. Key exclusions include certain histologies (clear cell, mucinous, low-grade/borderline, non-epithelial), prior systemic therapy or prior abdominal/pelvic radiation, active brain metastases, and pregnancy or breastfeeding.

Who should consider this trial

Good fit: Women with newly diagnosed FIGO stage III or IV epithelial ovarian, fallopian tube, or primary peritoneal cancer with CLDN6-positive tumors, ECOG performance status 0–2, no prior systemic treatment or surgery, and adequate organ function are the ideal candidates.

Not a fit: Patients with excluded histologies (clear cell, mucinous, sarcomatous, mixed, low-grade/borderline, or non-epithelial), prior systemic therapy or prior surgery, CLDN6-negative tumors, active uncontrolled medical conditions, brain metastases, or who are pregnant/breastfeeding are unlikely to benefit from this protocol.

Why it matters

Potential benefit: If successful, the combination could increase tumor shrinkage before surgery and improve the chances for a more complete surgical removal of cancer.

How similar studies have performed: CLDN6-targeted therapies are a relatively new approach with only limited early-phase signals of activity reported, so this is an early clinical test of this specific agent and combination.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Eastern Cooperative Oncology Group (ECOG) performance status less than or equal to 2.
* Histologically or cytologically confirmed diagnosis of epithelial ovarian, primary peritoneal or fallopian tubes cancer
* FIGO Stage III or IV
* Positive for claudin 6 (CLDN6) expression
* Adequate organ function

Exclusion Criteria:

* Clear cell, mucinous, sarcomatous, mixed histology, low-grade/borderline, or non-epithelial ovarian cancers
* Prior systemic treatment for the disease under study
* Prior surgery
* Prior radiation therapy to the abdomen or pelvis
* Current recipient or receipt within 5-half-lives of C1D1 of chemotherapy, biologic/targeted therapy, immunomodulator therapy for any disease indication
* Active, progressive, or symptomatic brain metastases
* Participants considered poor medical risks due to serious, uncontrolled medical conditions, active infections, or nonmalignant systemic diseases
* Pregnant or breastfeeding women

Where this trial is running

Los Angeles, California

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions FIGO Stage III and IV Ovarian CancerFallopian Tube CancersPrimary Peritoneal Cancer
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.