Clinical trial Recruiting at 10 sites Phase 3 Interventional Ages 18 and up Women only

IMNN-001 combined with standard chemotherapy for newly diagnosed advanced epithelial ovarian, fallopian tube, or primary peritoneal cancer

Official title: A Randomized Phase 3 Trial Evaluating the Safety & Efficacy of IP IMNN-001 Administered in Combination w/ Standard Neoadjuvant & Adjuvant Chemotherapy in Newly Diagnosed Patients w/ Advanced EOC, Fallopian Tube or Primary Peritoneal Cancer

Run by Imunon · NCT06915025 · Data updated 2026-11-12

This trial tests whether adding IMNN-001 (an intraperitoneal IL-12 plasmid therapy) to standard paclitaxel/carboplatin chemotherapy helps people with newly diagnosed advanced epithelial ovarian, fallopian tube, or primary peritoneal cancer.

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years and up
SexWomen only
Enrollment500 (estimated)
SponsorImunon
Industry-sponsored
Drugs / interventionsbevacizumab, chemotherapy, immunotherapy, radiation, prednisone
Locations10 sites (Orlando, Florida and 9 other locations)
StatusRecruiting
StartedJuly 9, 2025
Main results expectedOctober 31, 2032
Study endsOctober 31, 2032
Registry record updatedOctober 30, 2026
Trial IDNCT06915025 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults assigned female, age 18 or older, with newly diagnosed high-grade non-mucinous epithelial ovarian, fallopian tube, or primary peritoneal cancer that is FIGO stage IIIB/C or IV and who are eligible for neoadjuvant chemotherapy are the intended participants.

Probably not a fit

Patients with early-stage disease, mucinous histology, prior systemic therapy for the current cancer, or who are ineligible for neoadjuvant chemotherapy or intraperitoneal treatment are unlikely to benefit from this protocol.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a randomized, open-label Phase 3 study that assigns participants 1:1 to receive standard neoadjuvant and adjuvant paclitaxel plus carboplatin with or without intraperitoneal IMNN-001. IMNN-001 is given on a defined schedule alongside chemotherapy for a total of 17 intraperitoneal administrations across the neoadjuvant and adjuvant periods, with interval debulking surgery after three neoadjuvant cycles. Randomization is stratified by tumor homologous recombination deficiency (HRD) status and disease stage, and an independent Data Monitoring Committee oversees safety. After the randomized treatment period, participants receive standard maintenance therapy per local practice.

Why it matters

Potential benefit: If successful, adding IMNN-001 could boost local immune activity and improve response to chemotherapy, potentially prolonging progression-free survival.

How similar studies have gone: Earlier-phase studies of intraperitoneal IL-12 plasmid therapies (including GEN-1/OVATION programs) showed biological activity and tolerability signals but did not provide definitive phase 3–level efficacy proof.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Participants must be female, ≥18 years of age, able to understand the study procedures, and agree to participate in the study by providing written informed consent.
2. Participants with a histologically confirmed diagnosis of high-grade non-mucinous epithelial ovarian (serous, endometrioid, carcinosarcoma, mixed epithelial pathologies), fallopian tube or peritoneal cancer that is Stage IIIB/C or IV according to the International Federation of Gynecology and Obstetrics (FIGO) or tumor, node and metastasis staging criteria.
3. Participants eligible to receive neoadjuvant chemotherapy.
4. Participants will provide a tumor tissue sample at pre-screening or screening, via laparoscopy or image guided core biopsy for determination of confirmed biomarker tumor status (HRD vs. HRP). See biomarker status definitions in the section below.
5. Participants of childbearing potential must have a negative serum pregnancy test (beta human chorionic gonadotropin) within 14 days prior to initiation of protocol therapy and be practicing an effective form of contraception. If applicable, participants must discontinue breastfeeding prior to study entry.
6. Participants must have adequate:

   1. Bone marrow function: Absolute neutrophil count (ANC) greater than or equal to 1,500/µl. Exceptions may be made in patients with benign ethnic neutropenia \>800/ul with approval of a medical monitor. This ANC cannot have been induced or supported by granulocyte colony stimulating factors. Platelets greater than or equal to 100,000/µl.
   2. Renal function: eGFR \> 60 ml/min/1.73m2
   3. Hepatic function: Bilirubin ≤ 1.5 x ULN. SGOT (AST) and SGPT (ALT) ≤ 3.0 x ULN and alkaline phosphatase ≤ 2.5 x ULN. Exceptions due to hepatic metastases can be considered in consultation with medical monitor.
   4. Neurologic function: Neuropathy (sensory and motor) less than or equal to Grade 1 as defined by CTCAE version 5.0.
7. Participants must have an ECOG score of 0, 1 or 2.
8. Participants should be free of active infection requiring parenteral antibiotics or a serious uncontrolled medical illness or disorder within 4 weeks of study entry.
9. Any hormonal therapy directed at the malignant tumor must be discontinued at least one week prior to the first treatment. Continuation of hormone replacement therapy is permitted.

Exclusion Criteria:

1. Participant who has received prior treatment with IMNN-001.
2. Participant who has received oral or parenteral corticosteroids (\>10 mg prednisone) within 2 weeks of first dose of IMNN-001 (if applicable) or who have a clinical requirement for ongoing systemic immunosuppressive therapy such as chronic steroid use not related to chemotherapy administration.
3. Participant has mucinous, germ cell, transitional cell, clear cell, undifferentiated, or non-epithelial ovarian cancer.
4. Participant has low-grade or Grade 1 epithelial ovarian cancer.
5. Participant of childbearing potential, not practicing adequate contraception, participant who is pregnant, or participant who is breastfeeding are not eligible for this trial.
6. Participant has a bowel obstruction by clinical symptoms or computed tomography (CT) scan, sub-occlusive mesenteric disease, abdominal or gastrointestinal fistula, gastrointestinal perforation, or intra-abdominal abscess.
7. Participant has been diagnosed and/or treated with any therapy for invasive cancer \<3 years from study enrollment, completed adjuvant chemotherapy and/or targeted therapy at least 3 years from enrollment, or completed adjuvant hormonal therapy less than 4 weeks from enrollment.
8. Participant with definitively treated non-invasive malignancies such as cervical carcinoma in situ, ductal carcinoma in situ, grade 1 or 2 Stage IA endometrioid endometrial cancer, or non-melanomatous skin cancer are allowed.
9. Participant with concurrent severe medical problems unrelated to the malignancy that would significantly limit full compliance with the study or expose the participant to extreme risk or decreased life expectancy.
10. Participant has known active hepatitis or HIV with detectable viral load.
11. Participant has a known contraindication or uncontrolled hypersensitivity to the components of paclitaxel, carboplatin, IMNN-001, or their excipients.
12. Prior treatment for high-grade non-mucinous epithelial ovarian, fallopian tube, or peritoneal cancer (e.g., immunotherapy, anticancer therapy, surgery, radiation therapy).
13. Participant is receiving treatment for active autoimmune disease. "Active" refers to any condition currently requiring therapy. Examples of autoimmune disease include systemic lupus erythematosus, multiple sclerosis, inflammatory bowel disease and rheumatoid arthritis.
14. Participant who has received prior radiotherapy to any portion of the abdominal cavity or pelvis is excluded. Prior radiation for localized cancer of the breast, head and neck, or skin is permitted, if it was completed at least 3 years prior to registration, and the participant remains free of recurrent or metastatic disease.
15. Participant who has received prior chemotherapy for any abdominal or pelvic tumor is excluded. Participant may have received prior adjuvant chemotherapy for localized breast cancer, if it was completed at least three years prior to registration, and that the participant remains free of recurrent or metastatic disease.
16. Participant with history or evidence upon physical examination of CNS disease, including primary brain tumor, seizures not controlled with standard medical therapy, any brain metastases, or history of cerebrovascular accident (CVA, stroke), transient ischemic attack (TIA) or subarachnoid hemorrhage within six months of the first date of treatment on this study.
17. Participant who will receive bevacizumab with the neoadjuvant or adjuvant treatment, or as maintenance will be excluded.
18. Participant with any condition/anomaly that would interfere with the appropriate placement of the IP catheter for study drug administration including abdominal surgery within 4 weeks of study entry (for reason other than IP port placement or laparoscopic diagnosis of epithelial ovarian cancer), intestinal dysfunction as defined in #6 above.

Where it's running

  • Advent Health
    Orlando, Florida, United States
    Recruiting
  • Louisiana State University HSC - NO Cancer Center
    New Orleans, Louisiana, United States
    Recruiting
  • Masonic Cancer Center, University of Minnesota
    Minneapolis, Minnesota, United States
    Recruiting
  • Washington University School of Medicine in St. Louis
    St Louis, Missouri, United States
    Recruiting
  • University of Rochester Medical Center
    Rochester, New York, United States
    Recruiting
  • Providence Cancer Institute
    Portland, Oregon, United States
    Recruiting
Show 4 more locations
  • Sanford Health
    Sioux Falls, South Dakota, United States
    Recruiting
  • Erlanger Health
    Chattanooga, Tennessee, United States
    Recruiting
  • Providence Sacred Heart Medical Center & Children's Hospital
    Spokane, Washington, United States
    Recruiting
  • Froedtert and The Medical College of Wisconsin
    Milwaukee, Wisconsin, United States
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.