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A Study of ZEN003694 in Combination With Enzalutamide in Patients With Metastatic Castration-Resistant Prostate Cancer

A Phase 1b/2a Safety and Tolerability Study of ZEN003694 in Combination With Enzalutamide in Patients With Metastatic Castration-Resistant Prostate Cancer

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02711956
Enrollment
75
Registered
2016-03-17
Start date
2016-12-31
Completion date
2019-11-30
Last updated
2021-11-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metastatic Castration-Resistant Prostate Cancer

Keywords

Metastatic Castration-Resistant Prostate Cancer (mCRPC), Phase 1b/2a, Prostate Cancer, Pharmacokinetics (PK), ZEN003694, ZEN-3694, Metastatic Castrate-Resistant Prostate Cancer, BET inhibitor (BETi), Bromodomain, Pharmacodynamics (PD), Enzalutamide, XTANDI, MDV3100, Epigenetics

Brief summary

This is an open label, non-randomized, Phase 1b/2a, dose escalation and dose confirmation study of ZEN003694 in combination with enzalutamide in patients with mCRPC.

Interventions

DRUGEnzalutamide

Sponsors

Zenith Epigenetics
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Males age ≥ 18 years 2. Metastatic, castrate resistant, histologically confirmed prostate cancer; surgically castrated or continuous medical castration for ≥ 8 weeks prior to screening 3. Serum testosterone \< 50 ng/dL determined within 4 weeks of first administration of study drug 4. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 5. Adequate laboratory parameters \[absolute neutrophil (ANC), platelets, asparate aminotransferase (AST), alanine aminotransferase (ALT), total bilirubin, creatinine and coagulation parameters\] at screening 6. Dose Escalation Cohort DE-A: Prior progression on enzalutamide or apalutamide at any time by PCWG2 criteria and receiving a stable dose of enzalutamide at the start of study treatment. 7. Dose Escalation Cohort DE-B: Enzalutamide-naïve and apalutamide-naïve patients following prior progression on abiraterone by PCWG2 criteria and receiving a stable dose of enzalutamide at the start of study treatment. 8. Dose Confirmation Cohort A (DC-A) only: Currently receiving enzalutamide as most recent systemic therapy for mCRPC and have experienced PSA progression by PCWG2 criteria in the absence of radiographic and/or clinical progression. Patients may or may not have experienced prior progression on abiraterone. 9. Dose Confirmation Cohort B (DC-B) only: Enzalutamide-naïve patients following prior progression on abiraterone by PCWG2 criteria and within 12 weeks of discontinuing abiraterone.

Exclusion criteria

1. Any history of brain metastases or prior seizure or conditions predisposing to seizure activity 2. Have previously received an investigational BET inhibitor (including previous participation in this study or Study ZEN003694-001) 3. Have received prior systemic anti-cancer therapy (including abiraterone) or investigational therapy within 2 weeks or five half-lives, whichever is shorter, prior to the first administration of study drug 4. Failure to recover to Grade 1 or lower toxicity related to prior systemic therapy (excluding alopecia and neuropathy) prior to study entry 5. Radiation therapy within 2 weeks of the first administration of study drug 6. Have received prior chemotherapy in the metastatic castration-resistant setting (prior chemotherapy in the hormone-sensitive setting is allowed provided last dose was at least 6 months prior to study entry) 7. Have received prior investigational anti-androgen therapy, including ARN-509 8. Currently receiving medications known to be strong inhibitors of CYP2C8, strong inducers (except enzalutamide) or inhibitors of CYP3A4 and substrates of CYP3A4, CYP2C9 and CYP2C19 with a narrow therapeutic window. Strong inducers, inhibitors and substrates must be discontinued at least 7 days prior to the first administration of study drug. 9. Not a candidate for enzalutamide treatment, in the opinion of the Investigator

Design outcomes

Primary

MeasureTime frameDescription
For Dose Escalation: Incidence of Dose-limiting Toxicities (DLT) to Determine the Maximum Tolerated Dose (MTD) and Recommended Phase 2 Dose (RP2D) of ZEN003694 in Combination With Enzalutamide.Cycle 1 (Day 1 thru Day 28)Determination of DLT was made during the first 28 days of treatment in the dose escalation phase. A DLT is defined as a clinically significant AE or laboratory abnormality that is considered possibly, probably, or definitely related to study drug. The MTD reflects the highest dose of ZEN003694 in combination with enzalutamide that did not cause a DLT in more than 1 of 6 patients. The RP2D is the recommended dose of ZEN003694 in combination with enzalutamide as determined in the dose confirmation phase of the study.
For Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Cycle 1 Day 1 to 30 days post last doseTreatment-emergent adverse events (TEAEs) were defined as any adverse events (AEs) that begin or worsen on or after the start of study drug through 30 days after the last dose of study drug. The severity of AEs was graded based on the National Cancer Institute's Common Terminology for Adverse Events (V4.03). A serious adverse event (SAE) was any AE that was: fatal; life-threatening; required in-patient hospitalization or prolonged an existing hospitalization; disabling or incapacitating; a congenital anomaly or birth defect; or any other important medical event.

Secondary

MeasureTime frameDescription
Evaluate Overall Median Progression-free Survival by PCWG2 CriteriaScreening up to 35 monthsOverall progression free survival (PFS) is determined using the PCWG2 criteria. Overall PFS is measured from screening until the time that disease progression (radiographic progressive disease or clinical deterioration) or death is documented, whichever occurs first. Arms will be combined to analyze efficacy in Cohort A and Cohort B.
Evaluate Median Radiographic Progression-Free Survival by PCWG2 CriteriaScreening up to 35 monthsRadiographic progression-free survival (rPFS) is determined using the PCWG2 criteria to assess both soft-tissue and bone assessments. The rPFS is measured from screening until the time the first radiographic scan shows disease progression, or until the time of death, whichever occurs first. If radiographic disease progression is identified at the first on-treatment radiographic assessment at Cycle 3 Day 1 (8 weeks), radiographic progression must be confirmed by a second assessment 6 or more weeks later. Patients who do not progress radiographically or did not die prior to study exit are censored on the date of their last dose of ZEN003694. Arms will be combined to analyze efficacy in Cohort A and Cohort B.
Evaluate Prostate-specific Antigen (PSA) Response Rate by PCWG2 CriteriaScreening up to 35 monthsThe PSA response rate will be evaluated using PCWG2 criteria and defined as the proportion of patients with a PSA decline of at least 50%. Any change from baseline is confirmed by a second measurement at least 3 weeks later. PSA Response Rate will be evaluated using PCWG2 criteria and defined as following: Percentage change from baseline in PSA to 12 weeks post ZEN003694 dose. Only evaluate for patients with at least 12 weeks of treatment, the PSA assessment at 12 weeks (84 days +/-3 days) will be used; Maximum percent decrease in PSA from baseline that occurs at any point after treatment. Evaluable for all patients with post-baseline PSA. Arms will be combined to analyze efficacy in Cohort A and Cohort B.
Measure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideCycle 1 Day 1: pre-dose, 0.25, 0.5, 1, 2, 4, 6 and 8 hours post-dose; Cycle 1 Day 2: pre-dose; Cycle 1 Day 15: pre-dose, 0.25, 0.5, 1, 2, 4, 6 and 8 hours post-doseCmax is defined as the maximum or peak plasma concentration of drug.
Measure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.Cycle 1 Day 1: pre-dose, 0.25, 0.5, 1, 2, 4, 6 and 8 hours post-dose; Cycle 1 Day 2: pre-dose; Cycle 1 Day 15: pre-dose, 0.25, 0.5, 1, 2, 4, 6 and 8 hours post-doseAUC(0-24h) is defined as the area under the curve (plasma concentration of drug over a 24-hour time period).
Evaluate Radiographic Response Rate (Overall Response Rate) by PCWG2 CriteriaScreening up to 35 monthsTumor response will be evaluated using the PCWG2 criteria. Patients with measurable disease will be evaluated for clinical benefit as determined by tumor response using RECIST v1.1. Patients with non-measurable bone disease will be evaluated for progression based on the presence of any new lesions by bone scans. Radiographic tumor evaluation will be performed at screening and every 3 cycles or more frequently as determined by the investigator. Using the tumor response that is determined by the investigator, best overall response will be determined using RECIST v1.1. Best overall response is defined as the best response recorded from the start of treatment until disease progression or study exit. Arms will be combined to analyze efficacy in Cohort A and Cohort B.

Countries

United States

Participant flow

Recruitment details

The study was conducted at seven investigational sites in the United States between December 2016 and November 2019

Pre-assignment details

75 participants were enrolled and treated in the study.

Participants by arm

ArmCount
DE-A - 48 mg ZEN003694 + Enzalutamide
Dose Escalation - Cohort A - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (48 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
2
DE-A - 60 mg ZEN003694 + Enzalutamide
Dose Escalation - Cohort A - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (60 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
2
DE-A - 72 mg ZEN003694 + Enzalutamide
Dose Escalation - Cohort A - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (72 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
3
DE-A - 96 mg ZEN003694 + Enzalutamide
Dose Escalation - Cohort A - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (96 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
5
DE-A - 120 mg ZEN003694 + Enzalutamide
Dose Escalation - Cohort A - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (120 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
4
DE-A - 144 mg ZEN003694 + Enzalutamide
Dose Escalation - Cohort A - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (144 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
3
DE-B - 36 mg ZEN003694 + Enzalutamide
Dose Escalation - Cohort B - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (36 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
4
DE-B - 48 mg ZEN003694 + Enzalutamide
Dose Escalation - Cohort B - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (48 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
4
DE-B - 60 mg ZEN003694 + Enzalutamide
Dose Escalation - Cohort B - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (60 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
4
DE-B - 72 mg ZEN003694 + Enzalutamide
Dose Escalation - Cohort B - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (72 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
3
DE-B - 96 mg ZEN003694 + Enzalutamide
Dose Escalation - Cohort B - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (96 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
1
DC-A - 48 mg ZEN003694 + Enzalutamide
Dose Confirmation - Cohort A - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (48 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
9
DC-A - 96 mg ZEN003694 + Enzalutamide
Dose Confirmation - Cohort A - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (96 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
17
DC-B - 48 mg ZEN003694 + Enzalutamide
Dose Confirmation - Cohort B - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (48 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
6
DC-B - 96 mg ZEN003694 + Enzalutamide
Dose Confirmation - Cohort B - Enzalutamide (160 mg) PO QD 14 days lead-in followed by the combination of ZEN003694 (96 mg) PO QD and enzalutamide (160 mg) PO QD in 28-day cycles.
8
Total75

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010FG011FG012FG013FG014
Overall StudyAdverse Event000120011110002
Overall StudyClinical progression100000101002411
Overall StudyPhysician Decision000200000000000
Overall StudyPSA progression with clinical progression000010000000110
Overall StudyPSA progression with radiographic progression010002210101233
Overall StudyRadiographic progression112010002105301
Overall StudyWithdrawal by Subject000000100001601

Baseline characteristics

CharacteristicTotalDE-A - 60 mg ZEN003694 + EnzalutamideDE-A - 72 mg ZEN003694 + EnzalutamideDE-A - 96 mg ZEN003694 + EnzalutamideDE-A - 120 mg ZEN003694 + EnzalutamideDE-A - 144 mg ZEN003694 + EnzalutamideDE-B - 36 mg ZEN003694 + EnzalutamideDE-B - 48 mg ZEN003694 + EnzalutamideDE-B - 60 mg ZEN003694 + EnzalutamideDE-B - 72 mg ZEN003694 + EnzalutamideDE-B - 96 mg ZEN003694 + EnzalutamideDE-A - 48 mg ZEN003694 + EnzalutamideDC-A - 48 mg ZEN003694 + EnzalutamideDC-A - 96 mg ZEN003694 + EnzalutamideDC-B - 48 mg ZEN003694 + EnzalutamideDC-B - 96 mg ZEN003694 + Enzalutamide
Age, Continuous70 years63 years74 years63 years67.5 years72 years73.5 years63.5 years74.5 years71 years62 years69.5 years66 years70 years67 years72 years
ECOG performance status
0
45 Participants1 Participants2 Participants4 Participants3 Participants3 Participants1 Participants3 Participants1 Participants1 Participants1 Participants1 Participants6 Participants10 Participants4 Participants4 Participants
ECOG performance status
1
30 Participants1 Participants1 Participants1 Participants1 Participants0 Participants3 Participants1 Participants3 Participants2 Participants0 Participants1 Participants3 Participants7 Participants2 Participants4 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants1 Participants1 Participants0 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
68 Participants2 Participants3 Participants4 Participants4 Participants3 Participants4 Participants4 Participants4 Participants2 Participants1 Participants1 Participants8 Participants16 Participants6 Participants6 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Mean Body Mass Index28.54 kg/m^2
STANDARD_DEVIATION 4.895
38.54 kg/m^2
STANDARD_DEVIATION 0.882
27.18 kg/m^2
STANDARD_DEVIATION 5.505
29.01 kg/m^2
STANDARD_DEVIATION 5.201
33.99 kg/m^2
STANDARD_DEVIATION 6.138
32.58 kg/m^2
STANDARD_DEVIATION 6.447
25.91 kg/m^2
STANDARD_DEVIATION 1.557
29.74 kg/m^2
STANDARD_DEVIATION 6.805
30.25 kg/m^2
STANDARD_DEVIATION 6.699
27.54 kg/m^2
STANDARD_DEVIATION 0.825
34.87 kg/m^225.26 kg/m^2
STANDARD_DEVIATION 1.854
28.1 kg/m^2
STANDARD_DEVIATION 3.763
26.05 kg/m^2
STANDARD_DEVIATION 4.183
28.13 kg/m^2
STANDARD_DEVIATION 2.523
28.34 kg/m^2
STANDARD_DEVIATION 3.67
Mean PSA84.364 ng/mL
STANDARD_DEVIATION 156.2876
96.855 ng/mL
STANDARD_DEVIATION 132.7452
10.383 ng/mL
STANDARD_DEVIATION 7.845
8.996 ng/mL
STANDARD_DEVIATION 7.0365
90.718 ng/mL
STANDARD_DEVIATION 87.184
6.280 ng/mL
STANDARD_DEVIATION 4.7483
149.423 ng/mL
STANDARD_DEVIATION 157.4893
34.766 ng/mL
STANDARD_DEVIATION 10.52727
53.404 ng/mL
STANDARD_DEVIATION 21.9723
24.433 ng/mL
STANDARD_DEVIATION 5.2254
12.720 ng/mL37.295 ng/mL
STANDARD_DEVIATION 17.9534
38.358 ng/mL
STANDARD_DEVIATION 41.2016
167.043 ng/mL
STANDARD_DEVIATION 274.6941
112.449 ng/mL
STANDARD_DEVIATION 185.2442
88.141 ng/mL
STANDARD_DEVIATION 78.42
Median Body Mass Index27.69 kg/m^238.54 kg/m^227.8 kg/m^229.24 kg/m^232.83 kg/m^229.49 kg/m^225.98 kg/m^229.02 kg/m^229.62 kg/m^227.53 kg/m^234.87 kg/m^225.26 kg/m^227.09 kg/m^225.81 kg/m^227.66 kg/m^229.38 kg/m^2
Median PSA28.700 ng/mL96.855 ng/mL8.090 ng/mL10.449 ng/mL90.850 ng/mL5.500 ng/mL130.866 ng/mL29.881 ng/mL53.697 ng/mL23.722 ng/mL12.720 ng/mL37.295 ng/mL25.600 ng/mL29.750 ng/mL52.043 ng/mL87.518 ng/mL
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
4 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants4 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
4 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants2 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants2 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
63 Participants2 Participants3 Participants4 Participants4 Participants3 Participants4 Participants3 Participants4 Participants2 Participants1 Participants1 Participants7 Participants11 Participants6 Participants8 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Sex: Female, Male
Male
75 Participants2 Participants3 Participants5 Participants4 Participants3 Participants4 Participants4 Participants4 Participants3 Participants1 Participants2 Participants9 Participants17 Participants6 Participants8 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
deaths
Total, all-cause mortality
0 / 40 / 210 / 60 / 60 / 310 / 40 / 3
other
Total, other adverse events
3 / 419 / 215 / 66 / 631 / 314 / 43 / 3
serious
Total, serious adverse events
1 / 43 / 211 / 62 / 66 / 311 / 43 / 3

Outcome results

Primary

For Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)

Treatment-emergent adverse events (TEAEs) were defined as any adverse events (AEs) that begin or worsen on or after the start of study drug through 30 days after the last dose of study drug. The severity of AEs was graded based on the National Cancer Institute's Common Terminology for Adverse Events (V4.03). A serious adverse event (SAE) was any AE that was: fatal; life-threatening; required in-patient hospitalization or prolonged an existing hospitalization; disabling or incapacitating; a congenital anomaly or birth defect; or any other important medical event.

Time frame: Cycle 1 Day 1 to 30 days post last dose

Population: All participants

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash maculopapular0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dizziness0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nasal congestion0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Decreased appetite0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photosensitivity0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Diarrhea0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Visual symptoms3 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photopsia0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Blood creatinine increased0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Fatigue1 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Weight loss and abnormal weight loss1 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Thrombocytopenia0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nausea0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vomiting0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dyspepsia0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Constipation0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Taste disorder0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dysgeusia0 Participants
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vision blurred0 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Blood creatinine increased0 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photosensitivity2 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash0 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Constipation1 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Weight loss and abnormal weight loss0 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Visual symptoms12 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Decreased appetite2 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Diarrhea0 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vision blurred0 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dizziness0 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dysgeusia2 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Thrombocytopenia1 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dyspepsia1 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vomiting1 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Fatigue8 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Taste disorder0 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nasal congestion0 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photopsia1 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nausea7 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash maculopapular3 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dizziness0 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Constipation0 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dysgeusia0 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vomiting0 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Thrombocytopenia1 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dyspepsia0 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photopsia0 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash0 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nausea2 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Fatigue1 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photosensitivity0 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Taste disorder1 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Blood creatinine increased2 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Weight loss and abnormal weight loss0 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Decreased appetite2 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nasal congestion0 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Diarrhea0 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vision blurred0 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Visual symptoms4 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash maculopapular0 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vision blurred0 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vomiting0 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Constipation0 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Thrombocytopenia2 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Fatigue2 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Blood creatinine increased0 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Weight loss and abnormal weight loss1 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dysgeusia0 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dizziness1 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nausea3 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash maculopapular0 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Visual symptoms6 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photopsia0 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash0 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dyspepsia0 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nasal congestion0 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Diarrhea1 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Taste disorder1 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photosensitivity0 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Decreased appetite1 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vomiting3 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Weight loss and abnormal weight loss3 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Blood creatinine increased3 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Constipation3 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Decreased appetite10 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Diarrhea5 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dizziness3 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dysgeusia10 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dyspepsia2 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Fatigue13 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nasal congestion3 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nausea17 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photopsia3 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photosensitivity3 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash3 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash maculopapular1 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Taste disorder3 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Thrombocytopenia6 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vision blurred2 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Visual symptoms17 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash maculopapular0 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dizziness0 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nausea3 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Diarrhea0 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Taste disorder0 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nasal congestion0 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vision blurred1 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dyspepsia0 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Decreased appetite3 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Blood creatinine increased0 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Constipation0 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dysgeusia1 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vomiting1 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Visual symptoms4 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Fatigue3 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photosensitivity0 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Weight loss and abnormal weight loss1 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Thrombocytopenia0 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash0 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photopsia0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nausea2 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Nasal congestion0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Rash maculopapular1 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Fatigue1 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dyspepsia0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Weight loss and abnormal weight loss2 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Taste disorder0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dysgeusia3 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Dizziness0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Thrombocytopenia1 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Diarrhea0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Decreased appetite2 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vomiting0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Vision blurred0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Constipation0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Blood creatinine increased0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photosensitivity0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Photopsia0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation and Dose Confirmation: Incidence of Treatment-emergent Adverse Events (TEAE) and Treatment-related Serious Adverse Events (SAE)Visual symptoms2 Participants
Primary

For Dose Escalation: Incidence of Dose-limiting Toxicities (DLT) to Determine the Maximum Tolerated Dose (MTD) and Recommended Phase 2 Dose (RP2D) of ZEN003694 in Combination With Enzalutamide.

Determination of DLT was made during the first 28 days of treatment in the dose escalation phase. A DLT is defined as a clinically significant AE or laboratory abnormality that is considered possibly, probably, or definitely related to study drug. The MTD reflects the highest dose of ZEN003694 in combination with enzalutamide that did not cause a DLT in more than 1 of 6 patients. The RP2D is the recommended dose of ZEN003694 in combination with enzalutamide as determined in the dose confirmation phase of the study.

Time frame: Cycle 1 (Day 1 thru Day 28)

Population: Participants in dose escalation

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
DE A+B - 36 mg ZEN003694 + EnzalutamideFor Dose Escalation: Incidence of Dose-limiting Toxicities (DLT) to Determine the Maximum Tolerated Dose (MTD) and Recommended Phase 2 Dose (RP2D) of ZEN003694 in Combination With Enzalutamide.0 Participants
DE A+B - 48 mg ZEN003694 + EnzalutamideFor Dose Escalation: Incidence of Dose-limiting Toxicities (DLT) to Determine the Maximum Tolerated Dose (MTD) and Recommended Phase 2 Dose (RP2D) of ZEN003694 in Combination With Enzalutamide.0 Participants
DE A+B - 60 mg ZEN003694 + EnzalutamideFor Dose Escalation: Incidence of Dose-limiting Toxicities (DLT) to Determine the Maximum Tolerated Dose (MTD) and Recommended Phase 2 Dose (RP2D) of ZEN003694 in Combination With Enzalutamide.0 Participants
DE A+B - 72 mg ZEN003694 + EnzalutamideFor Dose Escalation: Incidence of Dose-limiting Toxicities (DLT) to Determine the Maximum Tolerated Dose (MTD) and Recommended Phase 2 Dose (RP2D) of ZEN003694 in Combination With Enzalutamide.0 Participants
DE A+B - 96 mg ZEN003694 + EnzalutamideFor Dose Escalation: Incidence of Dose-limiting Toxicities (DLT) to Determine the Maximum Tolerated Dose (MTD) and Recommended Phase 2 Dose (RP2D) of ZEN003694 in Combination With Enzalutamide.1 Participants
DE A+B - 120 mg ZEN003694 + EnzalutamideFor Dose Escalation: Incidence of Dose-limiting Toxicities (DLT) to Determine the Maximum Tolerated Dose (MTD) and Recommended Phase 2 Dose (RP2D) of ZEN003694 in Combination With Enzalutamide.0 Participants
DE A+B - 144 mg ZEN003694 + EnzalutamideFor Dose Escalation: Incidence of Dose-limiting Toxicities (DLT) to Determine the Maximum Tolerated Dose (MTD) and Recommended Phase 2 Dose (RP2D) of ZEN003694 in Combination With Enzalutamide.0 Participants
Secondary

Evaluate Median Radiographic Progression-Free Survival by PCWG2 Criteria

Radiographic progression-free survival (rPFS) is determined using the PCWG2 criteria to assess both soft-tissue and bone assessments. The rPFS is measured from screening until the time the first radiographic scan shows disease progression, or until the time of death, whichever occurs first. If radiographic disease progression is identified at the first on-treatment radiographic assessment at Cycle 3 Day 1 (8 weeks), radiographic progression must be confirmed by a second assessment 6 or more weeks later. Patients who do not progress radiographically or did not die prior to study exit are censored on the date of their last dose of ZEN003694. Arms will be combined to analyze efficacy in Cohort A and Cohort B.

Time frame: Screening up to 35 months

Population: Arms were combined to analyze efficacy based on Cohorts defined by protocol. Cohort A is defined as patients with prior progression on enzalutamide or apalutamide by PCWG2 criteria. Cohort B is defined as patients who were enzalutamide-naïve with prior progression on abiraterone by PCWG2 criteria.

ArmMeasureValue (MEDIAN)
DE A+B - 36 mg ZEN003694 + EnzalutamideEvaluate Median Radiographic Progression-Free Survival by PCWG2 Criteria10.2 months
DE A+B - 48 mg ZEN003694 + EnzalutamideEvaluate Median Radiographic Progression-Free Survival by PCWG2 Criteria8.8 months
Secondary

Evaluate Overall Median Progression-free Survival by PCWG2 Criteria

Overall progression free survival (PFS) is determined using the PCWG2 criteria. Overall PFS is measured from screening until the time that disease progression (radiographic progressive disease or clinical deterioration) or death is documented, whichever occurs first. Arms will be combined to analyze efficacy in Cohort A and Cohort B.

Time frame: Screening up to 35 months

Population: Arms were combined to analyze efficacy based on Cohorts defined by protocol. Cohort A is defined as patients with prior progression on enzalutamide or apalutamide by PCWG2 criteria. Cohort B is defined as patients who were enzalutamide-naïve with prior progression on abiraterone by PCWG2 criteria.

ArmMeasureValue (MEDIAN)
DE A+B - 36 mg ZEN003694 + EnzalutamideEvaluate Overall Median Progression-free Survival by PCWG2 Criteria4.7 months
DE A+B - 48 mg ZEN003694 + EnzalutamideEvaluate Overall Median Progression-free Survival by PCWG2 Criteria6.2 months
Secondary

Evaluate Prostate-specific Antigen (PSA) Response Rate by PCWG2 Criteria

The PSA response rate will be evaluated using PCWG2 criteria and defined as the proportion of patients with a PSA decline of at least 50%. Any change from baseline is confirmed by a second measurement at least 3 weeks later. PSA Response Rate will be evaluated using PCWG2 criteria and defined as following: Percentage change from baseline in PSA to 12 weeks post ZEN003694 dose. Only evaluate for patients with at least 12 weeks of treatment, the PSA assessment at 12 weeks (84 days +/-3 days) will be used; Maximum percent decrease in PSA from baseline that occurs at any point after treatment. Evaluable for all patients with post-baseline PSA. Arms will be combined to analyze efficacy in Cohort A and Cohort B.

Time frame: Screening up to 35 months

Population: Arms were combined to analyze efficacy based on Cohorts defined by protocol. Cohort A is defined as patients with prior progression on enzalutamide or apalutamide by PCWG2 criteria. Cohort B is defined as patients who were enzalutamide-naïve with prior progression on abiraterone by PCWG2 criteria.

ArmMeasureValue (NUMBER)
DE A+B - 36 mg ZEN003694 + EnzalutamideEvaluate Prostate-specific Antigen (PSA) Response Rate by PCWG2 Criteria4.4 percentage of participants
DE A+B - 48 mg ZEN003694 + EnzalutamideEvaluate Prostate-specific Antigen (PSA) Response Rate by PCWG2 Criteria23.3 percentage of participants
Secondary

Evaluate Radiographic Response Rate (Overall Response Rate) by PCWG2 Criteria

Tumor response will be evaluated using the PCWG2 criteria. Patients with measurable disease will be evaluated for clinical benefit as determined by tumor response using RECIST v1.1. Patients with non-measurable bone disease will be evaluated for progression based on the presence of any new lesions by bone scans. Radiographic tumor evaluation will be performed at screening and every 3 cycles or more frequently as determined by the investigator. Using the tumor response that is determined by the investigator, best overall response will be determined using RECIST v1.1. Best overall response is defined as the best response recorded from the start of treatment until disease progression or study exit. Arms will be combined to analyze efficacy in Cohort A and Cohort B.

Time frame: Screening up to 35 months

Population: Arms were combined to analyze efficacy based on Cohorts defined by protocol. Cohort A is defined as patients with prior progression on enzalutamide or apalutamide by PCWG2 criteria. Cohort B is defined as patients who were enzalutamide-naïve with prior progression on abiraterone by PCWG2 criteria.

ArmMeasureValue (NUMBER)
DE A+B - 36 mg ZEN003694 + EnzalutamideEvaluate Radiographic Response Rate (Overall Response Rate) by PCWG2 Criteria2.6 percentage of participants
DE A+B - 48 mg ZEN003694 + EnzalutamideEvaluate Radiographic Response Rate (Overall Response Rate) by PCWG2 Criteria3.8 percentage of participants
Secondary

Measure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.

AUC(0-24h) is defined as the area under the curve (plasma concentration of drug over a 24-hour time period).

Time frame: Cycle 1 Day 1: pre-dose, 0.25, 0.5, 1, 2, 4, 6 and 8 hours post-dose; Cycle 1 Day 2: pre-dose; Cycle 1 Day 15: pre-dose, 0.25, 0.5, 1, 2, 4, 6 and 8 hours post-dose

Population: All Evaluable Participants

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
DE A+B - 36 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 11001 ng*h/mLStandard Error 494
DE A+B - 36 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 15; C24 (24h) inputed with Day 15 C0 (pre-dose) for AUC calculations867 ng*h/mLStandard Error 651
DE A+B - 36 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 11335 ng*h/mLStandard Error 659
DE A+B - 36 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 15; C24 (24h) imputed with Day 15 C0 (pre-dose) for AUC calculations.1234 ng*h/mLStandard Error 606
DE A+B - 48 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 15; C24 (24h) imputed with Day 15 C0 (pre-dose) for AUC calculations.2216 ng*h/mLStandard Error 1187
DE A+B - 48 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 11874 ng*h/mLStandard Error 635
DE A+B - 48 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 1985 ng*h/mLStandard Error 374
DE A+B - 48 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 15; C24 (24h) inputed with Day 15 C0 (pre-dose) for AUC calculations1046 ng*h/mLStandard Error 512
DE A+B - 60 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 13344 ng*h/mLStandard Error 1101
DE A+B - 60 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 15; C24 (24h) inputed with Day 15 C0 (pre-dose) for AUC calculations1487 ng*h/mLStandard Error 871
DE A+B - 60 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 12243 ng*h/mLStandard Error 848
DE A+B - 60 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 15; C24 (24h) imputed with Day 15 C0 (pre-dose) for AUC calculations.2979 ng*h/mLStandard Error 1583
DE A+B - 72 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 11966 ng*h/mLStandard Error 1067
DE A+B - 72 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 15; C24 (24h) inputed with Day 15 C0 (pre-dose) for AUC calculations1453 ng*h/mLStandard Error 967
DE A+B - 72 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 13277 ng*h/mLStandard Error 1708
DE A+B - 72 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 15; C24 (24h) imputed with Day 15 C0 (pre-dose) for AUC calculations.2586 ng*h/mLStandard Error 1265
DE A+B - 96 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 12424 ng*h/mLStandard Error 1450
DE A+B - 96 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 15; C24 (24h) imputed with Day 15 C0 (pre-dose) for AUC calculations.4478 ng*h/mLStandard Error 2449
DE A+B - 96 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 15; C24 (24h) inputed with Day 15 C0 (pre-dose) for AUC calculations2138 ng*h/mLStandard Error 946
DE A+B - 96 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 14090 ng*h/mLStandard Error 1562
DE A+B - 120 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 15; C24 (24h) inputed with Day 15 C0 (pre-dose) for AUC calculations2109 ng*h/mLStandard Error 578
DE A+B - 120 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 12153 ng*h/mLStandard Error 1529
DE A+B - 120 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 13712 ng*h/mLStandard Error 2660
DE A+B - 120 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 15; C24 (24h) imputed with Day 15 C0 (pre-dose) for AUC calculations.5275 ng*h/mLStandard Error 2369
DE A+B - 144 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 13815 ng*h/mLStandard Error 2774
DE A+B - 144 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 12119 ng*h/mLStandard Error 1547
DE A+B - 144 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003694 AUC(0-24h) Study Day 15; C24 (24h) inputed with Day 15 C0 (pre-dose) for AUC calculations1641 ng*h/mLStandard Error 704
DE A+B - 144 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: AUC(0-24h) of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide.ZEN003791 AUC(0-24h) Study Day 15; C24 (24h) imputed with Day 15 C0 (pre-dose) for AUC calculations.3155 ng*h/mLStandard Error 1858
Secondary

Measure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With Enzalutamide

Cmax is defined as the maximum or peak plasma concentration of drug.

Time frame: Cycle 1 Day 1: pre-dose, 0.25, 0.5, 1, 2, 4, 6 and 8 hours post-dose; Cycle 1 Day 2: pre-dose; Cycle 1 Day 15: pre-dose, 0.25, 0.5, 1, 2, 4, 6 and 8 hours post-dose

Population: All Evaluable Participants

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
DE A+B - 36 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 1181 ng/mLStandard Error 83
DE A+B - 36 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 15184 ng/mLStandard Error 128
DE A+B - 36 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 1125 ng/mLStandard Error 83
DE A+B - 36 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 15129 ng/mLStandard Error 72
DE A+B - 48 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 15220 ng/mLStandard Error 101
DE A+B - 48 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 1184 ng/mLStandard Error 62
DE A+B - 48 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 1216 ng/mLStandard Error 103
DE A+B - 48 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 15236 ng/mLStandard Error 119
DE A+B - 60 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 1244 ng/mLStandard Error 79
DE A+B - 60 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 15289 ng/mLStandard Error 204
DE A+B - 60 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 1290 ng/mLStandard Error 102
DE A+B - 60 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 15259 ng/mLStandard Error 176
DE A+B - 72 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 1452 ng/mLStandard Error 279
DE A+B - 72 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 15392 ng/mLStandard Error 278
DE A+B - 72 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 1306 ng/mLStandard Error 196
DE A+B - 72 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 15319 ng/mLStandard Error 208
DE A+B - 96 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 1492 ng/mLStandard Error 277
DE A+B - 96 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 15477 ng/mLStandard Error 194
DE A+B - 96 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 15484 ng/mLStandard Error 189
DE A+B - 96 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 1374 ng/mLStandard Error 143
DE A+B - 120 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 15458 ng/mLStandard Error 305
DE A+B - 120 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 1425 ng/mLStandard Error 306
DE A+B - 120 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 1342 ng/mLStandard Error 202
DE A+B - 120 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 15552 ng/mLStandard Error 332
DE A+B - 144 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 1417 ng/mLStandard Error 362
DE A+B - 144 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 1494 ng/mLStandard Error 424
DE A+B - 144 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003694 Cmax Study Day 15457 ng/mLStandard Error 330
DE A+B - 144 mg ZEN003694 + EnzalutamideMeasure the Pharmacokinetic (PK) Parameter: Cmax of ZEN003694 and ZEN003791 (Active Metabolite) Administered in Combination With EnzalutamideZEN003791 Cmax Study Day 15432 ng/mLStandard Error 362

Source: ClinicalTrials.gov · Data processed: Feb 26, 2026