Efficacy Evaluation of VERU-111 for mCRPC in Patients Who Have Failed at Least One Androgen Receptor Targeting Agent

  • STATUS
    Recruiting
  • End date
    Aug 19, 2024
  • participants needed
    245
  • sponsor
    Veru Inc.
Updated on 28 July 2021

Summary

To demonstrate the efficacy of VERU-111 (Sabizabulin) in the treatment of metastatic castration-resistant prostate cancer in patients who have failed prior treatment with at least one androgen receptor targeting agent as measured by radiographic progression-free survival.

Description

This study is a multicenter, randomized, open-label, active-control, efficacy and safety study of VERU-111 (Sabizabulin) for the treatment of metastatic castration-resistant prostate cancer in patients who have failed prior treatment with at least one androgen receptor targeting agent.

Subjects will have failed treatment with at least one prior androgen receptor targeting agent and be eligible for treatment with an alternative androgen receptor targeting agent (as per the current standard of care for these patients).

Subjects will be randomized in a 2:1 ratio to receive VERU-111 or Active Control (alternative androgen receptor targeting agent).

Subjects in the VERU-111 treated group will receive VERU-111 32 mg per day orally with an option to reduce the dose to 26 mg per day based on tolerability to the 32 mg dose until radiographic progression (blinded independent central read) in observed. Subjects in the Control treated group will receive an alternative androgen receptor targeting agent with dose and dosing regimen defined in the FDA approved prescribing information until radiographic progression in observed.

Randomization will be stratified by measurable disease vs. bone-only disease. A significant proportion (>30%) of the patients randomized into the study will have measurable disease at baseline.

Randomization will also be stratified by if the patient has failed one vs. more than one prior androgen targeting agent.

The primary efficacy endpoint of the study will be radiographic progression free survival.

Details
Condition Malignant neoplasm of prostate, Metastatic Castration Resistant Prostate Cancer
Treatment VERU-111, Enzalutamide, Abiraterone, Darolutamide and Apalutamide
Clinical Study IdentifierNCT04844749
SponsorVeru Inc.
Last Modified on28 July 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Provide informed consent
Be able to communicate effectively with the study personnel
Aged 18 years
Histological or cytologic proof of adenocarcinoma of the prostate not including the diagnosis of small cell carcinoma of the prostate of neuroendocrine pathology
Radiographic evidence of metastatic disease at baseline by CT scan, or MRI and bone scan, with confirmation of measurable disease by RECIST 1.1 and/or identifiable discrete bone metastases by PCWG3
Known castration resistant prostate cancer, defined according to PCWG3 criteria
Have received at least one androgen receptor targeting agent (e.g. abiraterone, enzalutamide, darolutamide, or apalutamide)
Subjects who have metastatic castration resistant prostate cancer that have maintained ADT and have failed prior treatment with at least one androgen receptor targeting agent (abiraterone,enzalutamide, darolutamide, or apalutamide) defined as
Serum PSA progression of two consecutive increases in PSA over a previous reference value within 6 months of first study treatment, each measurement at least 2 weeks apart. Or
Documented bone lesions by the appearance of two or more new lesions on bone scintigraphy or bi-dimensionally-measurable soft tissue metastatic lesion assessed by CT or MRI
Treatment with an alternative androgen receptor targeting agent is a reasonable next line of therapy
Absolute PSA 2.0 ng/ml at screening
ECOG performance status <2\
Participants must have normal organ and bone marrow function measured within 28 days prior to administration of study treatment as defined below
Hemoglobin 9.0 g/dL with no blood transfusion in the past 28 days
Creatinine clearance 60 mL/min
Absolute neutrophil count (ANC) 1.5 x 109/L
Platelet count 100 x 109/L
Total bilirubin 1.5 x upper limit of normal (ULN) (or <2.5 x ULN for patients with known Gilberts disease)
Aspartate aminotransferase (AST) (Serum Glutamic Oxaloacetic Transaminase (SGOT))/Alanine aminotransferase (ALT) (Serum Glutamic Pyruvate Transaminase (SGPT)) 2.5 x ULN. NOTE: Patients with elevations in bilirubin, AST, or ALT should be thoroughly evaluated for the etiology of this abnormality prior to entry and patients with evidence of viral infection should be excluded. Patients with chronic renal stent and stable creatinine elevation can be included in the study with written documentation from the PI
Participants must have a life expectancy >3 months
Subjects must agree to use acceptable methods of contraception
If the study subject's partner could become pregnant, use acceptable methods of contraception from the time of the first administration of study medication until 6months following administration of the last dose of study medication. Acceptable methods of contraception are as follows: Condom with spermicidal foam/gel/film/cream/suppository [i.e.,barrier method of contraception], surgical sterilization (vasectomy with documentation of azospermia) and a barrier method {condom used with spermicidal foam/gel/film/cream/suppository}, the female partner uses oral contraceptives (combination estrogen/progesterone pills), injectable progesterone or subdermal implants and a barrier method (condom used with spermicidal foam/gel/film/cream/suppository)
If female partner of a study subject has undergone documented tubal ligation (female sterilization), a barrier method (condom used with spermicidal foam/gel/film/cream/suppository)should also be used.-If female partner of a study subject has undergone documented placement of an intrauterine device (IUD) or intrauterine system (IUS),a barrier method (condom with spermicidal foam/gel/film/cream/suppository)should also be used
Other than metastatic prostate cancer, no evidence (within 5 years) of prior malignancies (except successfully treated basal cell or squamous cell carcinoma of the skin or other cancers treated with curative intent >3 years prior)
Participants must agree to refrain from prolonged exposure to the sun or agree to use at least SPF 50 on all exposed skin and protective clothing during prolonged sun exposure throughout participation in this study and/or treatment with VERU- 111
Subject is willing to comply with the requirements of the protocol through the end of the study

Exclusion Criteria

Known hypersensitivity or allergy to colchicine
Histologic identification of small cell carcinoma of the prostate or neuroendocrine pathology in either biopsy or prostatectomy tissue
A bone scan with evidence of superscan or superscan phenomenon, defined as
Uptake throughout the axial skeleton and proximal appendicular skeleton, often somewhat heterogeneous, or
Symmetrically intense and diffuse radiotracer uptake in the skeleton with absent or diminished visualization of the genitourinary system and soft tissues, or
Defined in the bone scan report as a superscan or superscan phenomenon. NOTE: Medical Monitor should be consulted prior to screening of a patient if a superscan or superscan phenomenon is suspected or possible, but undetermined by any of the above definitions
Has received external-beam radiotherapy within the last 2 weeks prior to start of study treatment
Patients with a QT interval corrected by Fridericia's formula of >480 ms
Patients receiving full dose warfarin therapy are not eligible for study
Patients with prior history of a thromboembolic event within the last 6 months
Participation in another clinical study with an investigational product during the last 6 months prior to randomization into this study
Patients should be excluded if they have had prior systemic treatment with prior taxane chemotherapies (for greater than 2 cycles) for advanced prostate cancer. Patient can have up to 2 cycles of prior taxane chemotherapy greater than one year prior to randomization and remain eligible for inclusion in this study. Taxane exposure in the adjuvant or neoadjuvant setting is allowed (maximum of 6 cycles)
Any treatment modalities involving major surgery within 4weeks prior to the start of study treatment
Patients are excluded if they have known brain metastases or leptomeningeal metastases
Patients should be excluded if they have a positive test for hepatitis B virus surface antigen (HBV sAg) or hepatitis C virus ribonucleic acid (HCV antibody) indicating acute or chronic infection
Has imminent or established spinal cord compression based on clinical findings and/or MRI
Any other serious illness or medical condition that would, in the opinion of the investigator, make this protocol unreasonably hazardous. Active infections discovered during screening period must be treated and controlled before patient is dosed with VERU-111
Persistent toxicities (>Common Terminology Criteria for Adverse Event (CTCAE) grade 2) caused by previous cancer therapy, excluding alopecia
Poor medical risk due to a serious, uncontrolled medical disorder, non-malignant systemic disease or active, uncontrolled infection. Examples include, but are not limited to, uncontrolled ventricular arrhythmia, recent (within 6 months) myocardial infarction, uncontrolled major seizure disorder, extensive interstitial bilateral lung disease, or any psychiatric disorder that prohibits obtaining informed consent
Total bilirubin levels > 1.5 x ULN
AST and/or ALT levels >2.5xULN or AST and/or ALT levels >1.5xULN WITH concomitant alkaline phosphatase levels >2.5xULN
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