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A mass balance study of TS-172 in healthy adult subjects

A mass balance study of TS-172 in healthy adult subjects

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2031240318
Enrollment
6
Registered
2024-09-04
Start date
2024-09-26
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

Hyperphosphatemia

Interventions

Subjects received single dose of about 30 mg of TS-172 containing 1 MBq [14C]TS-172 as an oral solution

Sponsors

Mita Seiji
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: - Japanese males aged >=20 and =18.5 and <25.0 kg/m2 at screening - Subjects who have no abnormal findings in the physical examination, vital signs, and standard 12-lead ECG in the screening test and the test on the day of admission and the test obtained prior to administration of the investigational drug, and whose clinical test results are within the standard values of the clinical trial site in the screening test and the test on the day of admission. However, if who showed abnormal findings or values outside the reference ranges but not clinically significant, they can be enrolled in clinical trials based on comprehensive consideration of medical viewpoints by the principal investigator(s) or subinvestigator(s). - Subjects who understand, and have willingness and ability to read and sign, the informed consent form

Exclusion criteria

Exclusion criteria: - Subjects who have been administered substances labelled with radioisotopes or exposed to high levels of radiation (e.g. CT scan, gastric X-ray, PET scan) within one year prior to dosing of the investigational drug. - Occupationally exposed worker within one year prior to dosing of the investigational drug (e.g. workers who handle nuclear power or radioactive substances) - Subjects who have had 3 days or less that one or more spontaneous defecations (defecation that occurs without laxatives, enemas, disimpaction) within 7 days before consent is obtained or during the 7 days until on the day of admission. Those who have diarrhea during the 7 days until on the day of admission - History of any disease or surgery which have impact on investigational drug absorption such as gastrointestinal ulcer, gastrectomy, gastroenterostomy or bowel resection

Design outcomes

Primary

MeasureTime frame
- Radioactivity concentration in whole blood and plasma - Calculation of cumulative urinary and fecal recovery of total radioactivity, and calculation of mass balance as a sum of the percentages of total radioactivity recovered in urine and faeces - Concentration of unchanged form and its major metabolites in plasma - Percentage of unchanged form and metabolites to total radioactivity in plasma - Percentage of unchanged form and metabolites to total radioactivity in urine and faeces - Metabolite profiling and structural identification of metabolites in plasma, urine and faeces

Contacts

Public ContactDevelopment Management Development Headquarters

Taisho Pharmaceutical Co., LTD.

shu_chiken@taisho.co.jp+81-3-3985-1118

Outcome results

None listed

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