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A Phase 1 study of TAK-385 in Patients With Androgen Deprivation Treatment-Naive Prostate Cancer

A Phase 1, Randomized, Open-Label Study of TAK-385, an Oral Gonadotropin-Releasing Hormone (GnRH) Antagonist in Japanese Patients With Androgen Deprivation Treatment-Naive Nonmetastatic Prostate Cancer

Status
Unknown
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2080222485
Enrollment
43
Registered
2014-05-14
Start date
2014-05-14
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

androgen deprivation treatment-naive nonmetastatic prostate cancer

Interventions

Sponsors

TAKEDA PHARMACEUTICAL COMPANY LTD.
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: 1)Patient has histologically or cytologically confirmed prostate adenocarcinoma 2)Patients who have not received androgen deprivation treatment (e.g., GnRH agonist, GnRH antagonist, steroidal antiandrogen, non-steroidal androgen) for prostate cancer. 3)Patients who have not undergone surgical castration 4)Serum testosterone at screening > 150 ng/dL 5)Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1

Exclusion criteria

Exclusion criteria: 1)Patients who have received 5-alpha reductase inhibitors 2)Patients who have received chemotherapy for prostate cancer (including Estramustine) 3)Patients who have received 125I-brachytherapy radiation therapy 4)Diagnosis or treatment for another systemic malignancy within 2 years before the first dose. Patients who diagnosed with another malignancy and any evidence of residual disease. Patients with non-melanoma skin cancer or carcinoma in situ of any type will not be excluded if they have undergone complete resection.

Design outcomes

Primary

MeasureTime frame
DLT, adverse events, clinical laboratory tests, vital signs, and 12-lead ECGs Up to 48 weeks

Secondary

MeasureTime frame
Plasma concentrations of TAK-385, Serum testosterone concentration, Serum prostate-specific antigen (PSA) Up to 48 weeks

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026