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Oregovomab and PLD in PARP Inhibitor Resistant Ovarian, Fallopian Tube, or Primary Peritoneal Cancer Patients Not Candidate for Platinum Retreatment

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Yonsei University

Status and phase

Enrolling
Phase 2

Conditions

PARP Inhibitor Resistant Ovarian, Fallopian Tube, or Primary Peritoneal Cancer Patients Not Candidate for Platinum Retreatment

Treatments

Drug: Orevogomab+PLD
Drug: Orevogomab+Paclitaxel

Study type

Interventional

Funder types

Other
Industry

Identifiers

NCT05407584
4-2022-0430

Details and patient eligibility

About

This study is phase II, open label, clinical trial to determine the efficacy of Oregovomab and non-platinum chemotherapy in PARP inhibitor resistant ovarian, fallopian tube, or primary peritoneal cancer patients who were not suitable for platinum retreatment.

Patients who have received one to three prior lines of chemotherapy are to be assigned to Cohort 1 (oregovamab 2 mg [C1,2,3,5,7 for five doses] + pegylated liposomal doxorubicin [PLD] 40 mg/m2 q4w, n=28), while patients who have received more than three prior lines of chemotherapy are to be assigned to Cohort 2 (oregovamab 2 mg [C1,2,3,5,7 for five doses] + weekly paclitaxel 80 mg/m2 [D1,8,15 q4w], n=28). A total of 56 patients will be recruited and treated with oregovomab + PLD / weekly paclitaxel until disease progression, unacceptable toxicity, or withdrawal of patient consent. The primary endpoint is objective response rate by RECIST 1.1.

Full description

This study is a two-cohort, single arm phase II study in patients with PARP inhibitor-resistant ovarian, fallopian tube, or primary peritoneal cancer. The efficacy and safety of five administrations of Oregovomab 2mg IV in combination with non-platinum chemotherapy will be evaluated with recurrent ovarian cancer who have progressed with prior PARP inhibitor treatment.

Patients with disease under study will be screened for eligibility during the period 28 days immediately prior to starting study drug on Day 1. Laboratory and radiological assessments performed as part of standard of care before signing informed consent may be used if performed within the screening/baseline time window.

During this time, the inclusion and exclusion criteria will be assessed and all screening assessments, laboratory tests, and procedures will be performed.

Cohort 1(1-3 prior line of chemotherapy) PLD (40 mg / m2 IV over three hours in one day) to be repeated till progression or unacceptable toxicity every four weeks (28 days) Investigational agent (Oregovomab): 2 mg diluted in 50 mL saline for injection administered IV following PLD over approximately 20 (acceptable range 15-30) minutes for a total of 5 scheduled injections, one each at Cycle 1, Cycle 2, Cycle 3, Cycle 5, and Cycle 7

Cohort2 (>3prior line of chemotherapy) paclitaxel (80 mg / m2 IV over three hours in one day) to be repeated till progression or unacceptable toxicity every four weeks on day 1, 8, 15

Investigational agent (Oregovomab): 2 mg diluted in 50 mL saline for injection administered IV following paclitaxel over approximately 20 (acceptable range 15-30) minutes for a total of 5 scheduled injections, one each at Cycle 1, Cycle 2, Cycle 3, Cycle 5, and Cycle 7

Enrollment

56 estimated patients

Sex

Female

Ages

20+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  1. Adults 20 years old or older.

  2. Subjects with histologically confirmed epithelial adenocarcinoma of ovarian, fallopian tube or peritoneal origin.

  3. Eligible histologic epithelial cell types: high grade serous adenocarcinoma, high grade endometrioid adenocarcinoma, undifferentiated carcinoma, clear cell adenocarcinoma, mixed epithelial carcinoma, , and low-grade adenocarcinoma, or adenocarcinoma not otherwise specified (N.O.S.).

    [only up to 5 patients with non-high grade serous carcinoma will be included]

  4. Prior PARP inhibitor exposure (progressed through a prior PARP inhibitor)

  5. CA-125 ≥ 50 U/ml

  6. Prior platinum-based chemotherapy.

  7. Cohort 1 : 1-3 prior lines of therapies / Cohort 2 : Previous treatments of the 4th line or more.

  8. Not eligible for platinum re-treatment (prior allergic reaction or residual toxicity, patients who are not able to receive (in the physician's opinion) or willing to receive platinum treatment and platinum resistant patients)

  9. Received prior bevacizumab or not eligible for bevacizumab due to medical.

  10. Adequate bone marrow function:

    1. Absolute neutrophil count (ANC) ≥ 1,500/μL
    2. Platelets ≥ 100,000/μL
    3. Hemoglobin ≥ 8.0 g/dL (Note: Blood transfusion is permitted up to 48 hours before first dose of study treatment).
  11. Adequate liver function:

    1. Bilirubin < 1.5 times upper limit normal (ULN)
    2. Lactate Dehydrogenase (LDH), SGOT/AST and SGPT/ALT < 2.5 times ULN
  12. Adequate renal function:

    a. Creatinine ≤ 1.5 times ULN

  13. ECOG Performance Status of 0 or 1.

  14. For women of childbearing potential, must be willing to avoid pregnancy by using a highly effective method of contraception from the first dose of study treatment to 60 days after last dose of study treatment.

  15. Sign informed consent and authorization permitting release of personal health information.

Exclusion criteria

  1. Participant has mucinous, germ cell, or borderline tumor of the ovary.

  2. Female subjects who are lactating and breastfeeding, or have a positive serum pregnancy test within 7 days prior to the first dose of study treatment.

  3. Any serious medical or psychiatric illness that could, in the investigator's opinion, potentially interfere with the completion of treatment according to this protocol.

  4. Active autoimmune disease, such as rheumatoid arthritis, systemic lupus erythematosus (SLE), ulcerative colitis, Crohn's Disease, multiple sclerosis (MS), or ankylosing spondylitis requiring active disease modifying treatment.

  5. Known allergy to murine proteins or hypersensitivity to any of the excipients of the oregovomab and PLD.

  6. Chronically treated with immunosuppressive drugs such as cyclosporine, adrenocorticotropic hormone (ACTH), etc.

  7. Chronic therapeutic corticosteroid use, defined as > 5 days of prednisone or equivalent, with the exception of inhalers or those on a pre-planned steroid taper.

  8. Recognized acquired, hereditary, or congenital immunodeficiency disease, including cellular immunodeficiencies, hypogammaglobulinemia or dysgammaglobulinemia.

  9. Clinically significant active infection(s) at the time of screening.

  10. Any of the following conditions (on-study testing is not required):

    1. Known HIV-infected subjects unless on effective anti-retroviral therapy with an undetectable viral load within 6 months, or
    2. Known or suspected hepatitis B if active infection (patients with chronic hepatitis B infection must have an undetectable HBV viral load on suppressive therapy, if indicated; positive surface antibody alone is not an exclusion), or
    3. Known or suspected hepatitis C infection which has not been treated and cured unless currently on treatment with an undetectable viral load).
  11. Uncontrolled or life-threatening diseases compromising safety evaluation.

  12. Participant has a known additional malignancy that is progressing or has required active treatment within the past 2 years.

    Note: Participants with basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or carcinoma in situ (e.g. breast carcinoma, cervical cancer in situ, endometrial carcinoma) that have undergone potentially curative therapy are not excluded.

    Note: Participants with synchronous primary endometrial cancer or a past history of primary endometrial cancer that met the following conditions are not excluded: Stage not greater than IA: no more than superficial myometrial invasion.

  13. Contraindications to the use of pressor agents

  14. History or evidence upon physical examination of CNS disease, seizures not controlled with standard medical therapy, or any brain metastases.

  15. Any of the following cardiovascular conditions:

    1. Acute myocardial infarction within 6 months before the first dose of study treatment.
    2. Current history of New York Heart Association (NYHA) Class III or IV heart failure (see Appendix H).
    3. Evidence of current uncontrolled cardiovascular conditions including cardiac arrhythmias, angina, pulmonary hypertension, or electrocardiographic clinically significant findings.
  16. Unable to read or understand or unable to sign the necessary written consent before starting treatment.

Trial design

Primary purpose

Treatment

Allocation

N/A

Interventional model

Parallel Assignment

Masking

None (Open label)

56 participants in 2 patient groups

Cohort 1(1-3 prior line of chemotherapy)
Experimental group
Description:
Oregovomab and PLD is synergistic in PARPi-resistant recurrent ovarian cancer.
Treatment:
Drug: Orevogomab+PLD
Cohort2 (>3prior line of chemotherapy)
Experimental group
Description:
Oregovomab and Paclitaxel show synergistic in PARPi-resistant recurrent ovarian cancer.
Treatment:
Drug: Orevogomab+Paclitaxel

Trial contacts and locations

1

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Central trial contact

Jung-Yun Lee

Data sourced from clinicaltrials.gov

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