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Phase 1 Dose Escalation Study of BAY 1841788 in Japanese Metastatic Castration-resistant Prostate Cancer (mCRPC) Subjects

An Open Label Phase I Study to Evaluate the Safety, Tolerability and Pharmacokinetics of BAY 1841788 in Japanese Subjects With Metastatic Castration-resistant Prostate Cancer

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02363855
Enrollment
9
Registered
2015-02-16
Start date
2015-02-23
Completion date
2018-01-18
Last updated
2018-01-25

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

Conditions

Prostatic Neoplasms

Keywords

Neoplasm Metastasis, Metastatic castration-resistant prostate cancer, Castration-resistant prostate cancer (CRPC)

Brief summary

The primary objectives of this study are to investigate the safety and tolerability of BAY 1841788 in Japanese subjects with metastatic castration-resistant prostate cancer (mCRPC) and the PK of BAY 1841788 and its major metabolite BAY 1896953.

Detailed description

The drug product is licensed from Orion pharma, Finland which is also the manufacturer of the product.

Interventions

DRUGBAY 1841788(ODM-201)

Cohort 1: Single dose 300 mg BAY 1841788, followed by twice daily administration of the same dose for 12 weeks Cohort 2: Single dose 2x300 mg BAY 1841788, followed by twice daily administration of the same dose for 12 weeks.

Sponsors

Bayer
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Japanese males aged ≥ 20 years * Histologically or cytologically confirmed adenocarcinoma of prostate without neuroendocrine differentiation or small cell features * Patients with metastatic castration-resistant prostate cancer (mCRPC). CRPC is defined as follows * Ongoing androgen deprivation therapy with a luteinizing hormone-releasing hormone (LHRH) analogue or antagonist, or bilateral orchiectomy, and castrate level of serum testosterone (\< 1.7 nmol/l \[50 ng/dL\]) at screening AND * Progressive disease and/or prostate-specific antigen (PSA) increase of three consecutive rises, at least 1 week apart AND * PSA \> 2ng/mL at screening * Eastern Cooperative Oncology Group performance status (ECOG PS) of 0-1 * Life expectancy of at least 3 months * Blood counts at screening: haemoglobin ≥ 9.0 g/dL, absolute neutrophil count ≥ 1,500/μL (1.5x109/l), platelet count ≥ 100,000/μL (100x109/l) (patient must not have received any growth factor or blood transfusion within 7 days of the hematology laboratory obtained at screening) * Screening values of serum alanine aminotransferase (ALT) and/or aspartate transaminase (AST) ≤ 2.5 x upper limit of normal (ULN), total bilirubin ≤ 1.5 x ULN, creatinine ≤ 1.5 x ULN, albumin \> 3.0 g/dl * Prior treatment with antiandrogen. Discontinuation of bicalutamide or nilutamide (not approved in Japan) at least 6 weeks and other antiandrogens at least 4 weeks prior to the start of the study drug administration.

Exclusion criteria

* Known metastases in the brain * Symptomatic local-regional disease that requires medical intervention including moderate/severe urinary obstruction or hydronephrosis due to prostate cancer * Acute toxicities (except for alopecia and CTCAE grade 2 neuropathy) of prior treatments and procedures not resolved to CTCAE ≤ grade 1 or baseline before the first drug administration * Febrile neutropenia of Common Terminology Criteria for Adverse Events (CTCAE) ≥ 3 * History of other malignancy within the previous 5 years except a basal cell carcinoma of skin and any other cancer for which treatment has been completed ≥ 5 years ago and from which the patient has been disease-free5 years ago and from which the patient has been disease-free * Prior treatment within 4 weeks before the first drug administration with immunotherapy, antiandrogen, CYP17 inhibitor (CYP17i), oral ketoconazole, estrogens, 5-α reductase inhibitors or investigational treatment * Use of bicalutamide or nilutamide (not approved in Japan) within 6 weeks before the first drug administration * Radiation therapy (external beam radiation therapy \[EBRT\], brachytherapy, or radiopharmaceuticals) or chemotherapy (except for nitrosoureas and mitomycin C) within 4 weeks before the first drug administration. Use of nitrosoureas or mitomycin C within 6 weeks before the first drug administration. * Prior use of any herbal products known to decrease PSA levels (e.g. PC SPES or saw palmetto) within 4 weeks before the first drug administration

Design outcomes

Primary

MeasureTime frameDescription
Number of participants with Treatment Emergent Adverse Event as measure of safety and tolerabilityUp to 12 weeks
The intensity of an adverse event graded using the NCI CTCAE version 4.03Up to 12 weeksNational Cancer Institute Common Terminology Criteria for Adverse Events Version 4.03 (NCI CTCAE)
Plasma concentration of BAY 1841788 characterized by CmaxDay -5 {pre dose, 0.5,1,1.5,3,5 ,8,12,24,36,48},Day -2 {before morning dose, 0.5,1,1.5,3,5,8, 12, 24, 36 and 48 h} ,Day 7 {before morning dose, 0.5, 1, 1.5,3,5,8,12 h (before evening dose)}Cmax: maximum drug concentration in plasma after single dose administration
Plasma concentration of BAY 1841788 characterized by tmaxDay -5 {pre dose, 0.5,1,1.5,3,5 ,8,12,24,36,48},Day -2 {before morning dose, 0.5,1,1.5,3,5,8, 12, 24, 36 and 48 h} ,Day 7 {before morning dose, 0.5, 1, 1.5,3,5,8,12 h (before evening dose)}tmax: time to reach maximum drug concentration in plasma after single (first) dose
Plasma concentration of BAY 1841788 characterized by AUC(0-12)Day -5 {pre dose, 0.5,1,1.5,3,5 ,8,12,24,36,48},Day -2 {before morning dose, 0.5,1,1.5,3,5,8, 12, 24, 36 and 48 h} ,Day 7 {before morning dose, 0.5, 1, 1.5,3,5,8,12 h (before evening dose)}AUC(0-12):AUC from time 0 to 12 hours after administration
Plasma concentration of metabolite BAY 1896953 characterized by CmaxDay -5 {pre dose, 0.5,1,1.5,3,5 ,8,12,24,36,48},Day -2 {before morning dose, 0.5,1,1.5,3,5,8, 12, 24, 36 and 48 h} ,Day 7 {before morning dose, 0.5, 1, 1.5,3,5,8,12 h (before evening dose)}Cmax: maximum drug concentration in plasma after single dose administration
Plasma concentration of metabolite BAY 1896953 characterized by tmaxDay -5 {pre dose, 0.5,1,1.5,3,5 ,8,12,24,36,48},Day -2 {before morning dose, 0.5,1,1.5,3,5,8, 12, 24, 36 and 48 h} ,Day 7 {before morning dose, 0.5, 1, 1.5,3,5,8,12 h (before evening dose)}tmax: time to reach maximum drug concentration in plasma after single (first) dose
Plasma concentration of metabolite BAY 1896953 characterized by AUC(0-12)Day -5 {pre dose, 0.5,1,1.5,3,5 ,8,12,24,36,48},Day -2 {before morning dose, 0.5,1,1.5,3,5,8, 12, 24, 36 and 48 h} ,Day 7 {before morning dose, 0.5, 1, 1.5,3,5,8,12 h (before evening dose)}AUC(0-12):AUC from time 0 to 12 hours after administration
Plasma concentration of diastereomers BAY 1896951 characterized by CmaxDay -5 {pre dose, 0.5,1,1.5,3,5 ,8,12,24,36,48},Day -2 {before morning dose, 0.5,1,1.5,3,5,8, 12, 24, 36 and 48 h} ,Day 7 {before morning dose, 0.5, 1, 1.5,3,5,8,12 h (before evening dose)}Cmax: maximum drug concentration in plasma after single dose administration
Plasma concentration of diastereomers BAY 1896951 characterized by tmaxDay -5 {pre dose, 0.5,1,1.5,3,5 ,8,12,24,36,48},Day -2 {before morning dose, 0.5,1,1.5,3,5,8, 12, 24, 36 and 48 h} ,Day 7 {before morning dose, 0.5, 1, 1.5,3,5,8,12 h (before evening dose)}tmax: time to reach maximum drug concentration in plasma after single (first) dose
Plasma concentration of diastereomers BAY 1896951 characterized by AUC(0-12)Day -5 {pre dose, 0.5,1,1.5,3,5 ,8,12,24,36,48},Day -2 {before morning dose, 0.5,1,1.5,3,5,8, 12, 24, 36 and 48 h} ,Day 7 {before morning dose, 0.5, 1, 1.5,3,5,8,12 h (before evening dose)}AUC(0-12):AUC from time 0 to 12 hours after administration
Plasma concentration of diastereomers BAY 1896952 characterized by CmaxDay -5 {pre dose, 0.5,1,1.5,3,5 ,8,12,24,36,48},Day -2 {before morning dose, 0.5,1,1.5,3,5,8, 12, 24, 36 and 48 h} ,Day 7 {before morning dose, 0.5, 1, 1.5,3,5,8,12 h (before evening dose)}Cmax: maximum drug concentration in plasma after single dose administration
Plasma concentration of diastereomers BAY 1896952 characterized by tmaxtmax: time to reach maximum drug concentration in plasma after single (first) doseDay -5 {pre dose, 0.5,1,1.5,3,5 ,8,12,24,36,48},Day -2 {before morning dose, 0.5,1,1.5,3,5,8, 12, 24, 36 and 48 h} ,Day 7 {before morning dose, 0.5, 1, 1.5,3,5,8,12 h (before evening dose)}
Plasma concentration of diastereomers BAY 1896952 characterized by AUC(0-12)Day -5 {pre dose, 0.5,1,1.5,3,5 ,8,12,24,36,48},Day -2 {before morning dose, 0.5,1,1.5,3,5,8, 12, 24, 36 and 48 h} ,Day 7 {before morning dose, 0.5, 1, 1.5,3,5,8,12 h (before evening dose)}AUC(0-12):AUC from time 0 to 12 hours after administration

Countries

Japan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026