Skip to content

Preliminarily comparison of multiple radiographic modalities in evaluation of response to treatment of bone metastasis with Ra-223

Preliminarily comparison of multiple radiographic modalities in evaluation of response to treatment of bone metastasis with Ra-223 - Comparison of radiographic modalities for Ra-223

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000039051
Enrollment
30
Registered
2020-01-04
Start date
2019-12-01
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

CRPC patients with bone metastasis

Interventions

None listed

Sponsors

Nippon Medical School
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: Symptomatic metastatic castration resistant prostate cancer with bone metastasis with no known visceral metastasis (1)Histologically or cytologically confirmed prostate cancer with medical or surgical castration, and who to be treated with Ra-223 (2)With bone metastases (≥ 2 hot spots) on bone scintigraphy prior to enrollment (3)Age ≥ 20 (4)Eastern Cooperative Oncology Group performance status (ECOG-PS): 0-2 (5)Life expectancy ≥ 6 months (6)Laboratory requirements: -Absolute neutrophil count (ANC) ≥ 1.5 x 109/L -Platelet count ≥ 100 x 109/L -Hemoglobin ≥ 10.0 g/dL -Total bilirubin level ≤ 1.5 institutional upper limit of normal (ULN) -Aspartate aminotransferase (AST) and Alanine aminotransferase (ALT) ≤ 2.5 ULN -Creatinine ≤ 1.5 ULN, and estimated glomerular filtration rate (GFR) ≥ 30 mL/min/1.73 m2

Exclusion criteria

Exclusion criteria: (1)Prior treatment within 1 week before enrollment or any combination use during the study with abiraterone and prednisone/prednisolone, enzalutamide, or chemotherapies (2)Prior hemibody external radiation (3)Systemic radiotherapy with strontium-89, samarium-153, rhenium-186 or rhenium-188 for the treatment of bone metastases within previous 24 weeks (4)Had history of gastrointestinal bleeding or ulcer within 3 months prior to study entry (5)Other malignancy treated prior to enrollment (except non-melanoma skin cancer or low-grade superficial bladder cancer) (6)History of visceral metastasis, or visceral metastases as assessed by screening imaging examination (7)Known brain metastasis (8)Malignant lymphadenopathy exceeding 3 cm in short-axis diameter (9)Imminent or established spinal cord compression based on clinical findings and/or MRI (Magnetic Resonance Imaging) (10)Any other serious illness or medical condition (11)Substance abuse, medical, psychological, or social conditions that might interfere with the subject's participation in the study or evaluation of the study (12)Those who have any contraindication to MRI or other Magnetic Imaging

Design outcomes

Primary

MeasureTime frame
To preliminarily compare multiple modalities (SPECT-CT, FDG-PET and MRI) in terms of predicting overall survival after Ra-223 treatment in CRPC patients with bone metastasis

Secondary

MeasureTime frame
To preliminarily compare multiple modalities in terms of predictability of SSE-FS

Countries

Japan

Contacts

Public ContactTomohiro Tsukagoshi

Nippon Medical School Hospital Department of Radiology

t-tsukagoshi@nms.ac.jp+81-3-3822-2131

Outcome results

None listed

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