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Prospective multi-institutional study for Ra-223 in CRPC patients with bone metastasis

Prospective multi-institutional study for Ra-223 in CRPC patients with bone metastasis - KYUCOG-1901

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000040358
Enrollment
100
Registered
2020-05-11
Start date
2020-06-01
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

Castration-resistant prostate cancer (CRPC) with bone metastases

Interventions

None listed

Sponsors

Department of Urology, Graduate School of Medical Sciences, Kyushu University
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: 1.Histologically or cytologically confirmed prostate cancer. 2.The patients diagnosed as CRPC. 3.Patients undergoing continuous androgen removal by GnRH agonist and antagonist or bilateral orchiectomy. 4.Multiple bone metastases (>=2 hot spots) detected by bone scintigraphy within previous 12 weeks. 5.Age 20 years or older at the time of consent acquisition. 6.Eastern Cooperative Oncology Group performance status (ECOG-PS): 0-2. 7.Expected survival is more than 6 months. 8.Preserved hematologic function within 4 weeks as follows; Absolute neutrophil count (ANC)>= 1500/mm3 Platelet count >=100,000/mm3 Hemoglobin >=10.0 g/dL 9.Patients who fully understand this research plan and can give their consent.

Exclusion criteria

Exclusion criteria: 1.Systemic radiotherapy with strontium-89, samarium-153, rhenium-186 or rhenium-188 for the treatment of bone metastases within previous 24 weeks. 2.Prior treatment with radium-223 3.Had history of gastrointestinal bleeding within 12 weeks. 4.Any active other malignancy. 5.History of visceral metastasis, or presence of visceral metastasis detected by screening imaging examinations. 6.Patients with or confirmed a history of metastatic brain tumor. 7.Malignant lymphadenopathy exceeding 1.5 cm in short-axis diameter. 8. Imminent or established spinal cord compression based on clinical findings and/or MRI (Magnetic Resonance Imaging). 9.Any other serious illness or medical condition. 10.Substance abuse,medical,psychological, or social conditions that might interfere with the subject's participation in the study or evalution of the study results

Design outcomes

Primary

MeasureTime frame
Changes in amount of circulating tumor DNA (ctDNA) and in type and frequency of each gene abnormality by radium-223 treatment.

Secondary

MeasureTime frame
Relationship between efficacy and prognosis of radium-223 treatment and amount of ctDNA, type and frequency and that changes of each gene abnormality. Identification of single nucleotide polymorphisms (SNPs) in genomic DNA that correlate with efficacy and prognosis of radium-223 treatment. Effectiveness and prognosis of radium-223 treatment. Radium-223 adverse events, bone effects.

Countries

Japan

Contacts

Public ContactMasaki Shiota

Kyushu University Hospital Department of Urology

shiota.masaki.101@m.kyushu-u.ac.jp092-642-5603

Outcome results

None listed

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