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Domestic Phase I clinical study to evaluate the pharmacokinetics and safety of NMK02 in Japanese patients with prostate cancer

A Phase I clinical study to evaluate the pharmacokinetics and safety of a single dose of NMK02 in Japanese patients with prostate cancer

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2031260166
Enrollment
10
Registered
2026-05-29
Start date
2026-06-25
Completion date
Unknown
Last updated
2026-09-14

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

Conditions

Prostate Cancer

Interventions

NMK02 will be administered as a single dose of 333 +/- 37 MBq via intravenous bolus injection.

Sponsors

Otsuka Yuta
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: All of the following inclusion criteria must be met: 1. Male participants who are ethnically Japanese, defined as having both biological parents of Japanese origin and born in Japan. 2. Participant is >= 18 years of age at the time of consent. 3. Participant has provided signed informed consent and confirms that he is able and willing to comply with all protocol requirements. 4. Histologically confirmed adenocarcinoma of the prostate. 5. At least high-risk prostate cancer as defined by NCCN Guidelines Version 4.2026 (Clinical stage >=T3, or PSA >20 ng/mL, or Gleason score >=8).

Exclusion criteria

Exclusion criteria: Participants meeting any of the following exclusion criteria are not eligible for this study: 1. Participant has taken part in another clinical trial within 30 days prior to obtaining consent or is scheduled to participate in another clinical trial during the period from the investigational drug administration day to 7 days after administration (Day 1 to Day 8). 2. Participant is known to have hypersensitivity to the investigational drug, its excipients, or components of drugs in the same class. 3. Participants with clinically significant renal or hepatic impairment, defined as an estimated glomerular filtration rate (eGFR) 3 times the upper limit of normal (ULN), or aspartate transaminase/alanine transaminase > 5 times the ULN. 4. Participant has, in the judgment of the investigator, diseases or other conditions that may interfere with obtaining reliable data, achieving the study objectives, or completing the study. 5. Participant has received androgen deprivation therapy, neoadjuvant therapy with investigational drugs, or any intervention for prostate cancer within 2 weeks prior to obtaining consent.

Design outcomes

Primary

MeasureTime frame
Time course changes in radioactivity concentration in blood and plasma (per unit volume), radioactivity kinetic parameters based on radioactivity concentration in blood and plasma (AUCinf, AUClast, Cmax, Tmax, T1/2 alpha, T1/2 beta, CL, Vss, mean residence time [MRT], plasma/blood ratio), cumulative urinary radioactivity excretion rate up to each urine collection time point, urinary radioactivity kinetic parameters based on urinary radioactivity excretion rate at each urine collection time point (Tmax, Rate max, Rate last, T1/2 elim).

Contacts

Public ContactDevelopment Department Clinical Development Group

Nihon Medi-Physics Co.,Ltd.

trial-contact@gehealthcare.com+81-3-5634-7363

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Sep 19, 2026