To Evaluate Safety and Tolerability of VERU-111 in Men With Advanced Metastatic Castration Resistant Prostate Cancer



Status:Recruiting
Conditions:Prostate Cancer
Therapuetic Areas:Oncology
Healthy:No
Age Range:18 - Any
Updated:3/28/2019
Start Date:January 18, 2019
End Date:December 22, 2020
Contact:Gary Barnette
Email:gbarnette@verupharma.com
Phone:919-426-3611

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A Phase 1b/2 Study to Evaluate the Safety and Tolerability of VERU-111 in Men With Advanced Metastatic Castration Resistant Prostate Cancer

Phase 1b - To assess the safety/tolerability of VERU-111 and to determine the maximum
tolerated dose of VERU-111 in patients with metastatic, castration resistant prostate cancer
who have failed a novel androgen blocking agent therapy (mCRPC).

Phase 2 - To estimate the PSA50 response rate, defined as a decline in PSA to ≥50% of
baseline level, confirmed with a second measurement at least 3 weeks apart (PCWG3).

Up to 5 sites in the US only with approximately 18 patients for Phase 1b portion (3 patients
per dose group) of the study. Additional patients may be enrolled into the Phase 1b portion
of the study depending on the safety and tolerability assessment in the dose escalation
scheme.

Approximately 26 patients will be enrolled in the Phase 2 portion of the study

Phase 1b Approximately 18 patients for Phase 1b portion (3 patients per dose group) will be
enrolled into the study. Additional subjects may be enrolled based on the assessment of
safety and tolerability in the dose escalation scheme.

VERU-111 will be administered orally for three 21-day cycles in which the patient will take
the study drug (capsules) daily with food for 7 days and then have a 14-day treatment free
period.

Dose Escalation Criteria In Phase 1b, three patients will be planned at each dose level and
followed for one 21-day cycle.

- If 0/3 patients exhibit a dose limiting toxicity (DLT) after one 21-day cycle, the next
patient will be treated at the next dose level.

- If one patient out of the 3 exhibits a DLT related to the study agent, the cohort will
be expanded to up to 6 patients. If 1 of 6 patients exhibits a DLT related to the study
agent, then the next patient will enroll at the next dose level.

- If 2 of the first 3 subjects OR 2 of the first 6 patients exhibit a DLT related to the
study agent, the MTD is considered to have been determined and at least 3 additional
patients will be entered at the dose level below the one at which DLT is observed. Dose
escalations will occur no sooner than 3 weeks after the last patient on the dose level
has begun therapy to allow for full assessment of DLT. No intra-patient escalation will
be allowed.

- If <1 of 6 patients experience a DLT, this will be the recommended Phase 2 dose for the
expansion cohorts.

A Cohort Review Committee, consisting of investigators, the medical monitor and the sponsor,
will monitor the trial on an ongoing basis for safety and will guide dose escalation
decisions based on the occurrence of DLTs as described in this protocol.

The planned dosing for VERU-111 in the Phase 1b portion will be:

Treatment Group Daily dose Dosing Regimen

1. 4.5mg Daily dosing on Day 1-7 of each 21-day cycle for 3 cycles Treatment may continue
past the planned three 21-day cycles until DLT or disease progression is observed.

2. 9mg Daily dosing on Day 1-7 of each 21-day cycle for 3 cycles Treatment may continue
past the planned three 21-day cycles until DLT or disease progression is observed.

3. 18mg Daily dosing on Day 1-7 of each 21-day cycle for 3 cycles Treatment may continue
past the planned three 21-day cycles until DLT or disease progression is observed.

4. 27mg Daily dosing on Day 1-7 of each 21-day cycle for 3 cycles Treatment may continue
past the planned three 21-day cycles until DLT or disease progression is observed.

5. 36mg Daily dosing on Day 1-7 of each 21-day cycle for 3 cycles Treatment may continue
past the planned three 21-day cycles until DLT or disease progression is observed.

6. 45mg1 Daily dosing on Day 1-7 of each 21-day cycle for 3 cycles Treatment may continue
past the planned three 21-day cycles until DLT or disease progression is
observed.Treatment may continue past the planned three 21-day cycles until DLT or
disease progression is observed.

1 If after the first 21-day cycle for the 45 mg in Treatment Group 5 no DLT is observed, then
additional dose levels and additional dosing schedules (i.e. 14 days of daily dosing followed
by a 7-day treatment free period) may be considered.

Phase 2 The maximum tolerated dose of VERU-111 identified in the Phase 1b portion of the
study will be used in the Phase 2 portion of the study. The dosing regimen will be daily
dosing for 7 days followed by a 14-day treatment free period (21-day cycle). Three 21-day
cycles are planned in this study. However, treatment may continue past the planned three
21-day cycles until DLT or disease progression is observed.

Inclusion Criteria:

To be included in this study, patients should meet all of the following criteria:

• Willing and able to provide written informed consent and HIPAA authorization for the
release of personal health information.

NOTE: HIPAA authorization may be either included in the informed consent or obtained
separately.

- Patients >18 years of age.

- Histological or cytologic proof of adenocarcinoma of the prostate.

- Radiographic evidence of metastatic disease by CT scan or MRI and/or bone scan.

- Known castration resistant prostate cancer, defined according to PCWG3 criteria.

- Subjects who have metastatic castration resistant prostate cancer that have maintained
ADT and have failed a novel androgen receptor agent (abiraterone or enzalutamide)
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 two weeks apart.

Or

- Documented bone lesions by the appearance of two or more new lesions on bone
scintigraphy or dimensionally-measurable soft tissue metastatic lesion assessed by CT
or MRI.

- Absolute PSA ≥2.0 ng/ml at screening.

- Prior chemotherapy for mCRPC:

- Phase 1b - ONE prior taxane chemotherapy for mCRPC will be allowed during the Phase 1b
portion of study as long as the last dose was more than four weeks prior to the first
dose of study drug.

- Phase 2 - Prior chemotherapy for mCRPC is not allowed in the Phase 2 portion of the
study. Prior chemotherapy for metastatic hormone sensitive prostate cancer will not
qualify as a prior chemotherapy and the last dose must be >6 months prior to
enrollment.

- Prior treatment with abiraterone, enzalutamide, bicalutamide, and/or ketoconazole
is allowed. There is no limit on the maximum number or types of prior hormonal
therapies received. The patients should be off prior therapy for at least two
weeks (4 weeks off bicalutamide or nilutamide treatment) prior to first dose of
study drug.

- 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.

- Absolute neutrophil count (ANC) 1.5 x 109/L.

- Platelet count 100 x 109/L.

- Total bilirubin ≤1.5 x institutional 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 institutional upper limit of normal.

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.

- Participants must have a life expectancy >3 months.

- Male participants, and their partners, who are sexually active and of childbearing
potential, must agree to the use of two highly effective forms of contraception in
combination [see Appendix E for acceptable methods], throughout the period of taking
study treatment and for at least 4 weeks after the last dose of VERU-111 to prevent
pregnancy in a partner.

- Other than the 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 either 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.

Exclusion Criteria:

Patients that meet any of the criteria listed below will not be eligible for study entry:

- Histologic identification of small cell carcinoma of the prostate or neuroendocrine
pathology in either biopsy or prostatectomy tissue.

- Has received external-beam radiotherapy within the last 2 weeks prior to start of
study treatment.

- Patients receiving full dose anticoagulation 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 4 weeks/28 days.

- Patients should be excluded if they have had prior systemic treatment with two prior
taxane chemotherapies for advanced prostate cancer. No limit to other prior therapies.

- Concurrent use of other anticancer agents (see Appendix G) or treatments, with the
following exceptions:

o Ongoing treatment with denosumab (Prolia) or bisphosphonate (e.g., zoledronic acid)
is allowed. Ongoing treatment should be kept at a stable schedule; however, if
medically required, a change of dose, compound, or both is allowed.

- Any treatment modalities involving major surgery within 4 weeks prior to the start of
study treatment.

- Patients are excluded if they have active 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.

- History of severe hypersensitivity reaction to any taxane chemotherapy.

- 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.

- 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 > ULN or OR AST/ALT levels >1.5xULN with WITH concomitant
alkaline phosphatase levels >2.5xULN.

The following exclusion criterion is added to the Phase 1b portion of the study only:

• Patients with substantial visceral disease who require immediate treatment with cytotoxic
therapy
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