Data from Clinical Cancer Research - Curated by EPG Health - Date available

Availability

Free full text

PURPOSE: The main goals were to study the safety and tolerability of the alpha-emitter radium-223 (223Ra) in breast and prostate cancer patients with skeletal metastases. In addition, pain palliation was evaluated.

EXPERIMENTAL DESIGN: Fifteen prostate and 10 breast cancer patients enrolled in a phase I trial received a single i.v. injection of 223Ra. Five patients were included at each of the dosages: 46, 93, 163, 213, or 250 kBq/kg and followed for 8 weeks. Palliative response was evaluated according to the pain scale of the European Organization for Research and Treatment of Cancer QLQ C30 questionnaire at baseline and at 1, 4, and 8 weeks after injection.

RESULTS: Weekly blood sampling during follow-up revealed mild and reversible myelosuppression with nadir 2 to 4 weeks after the injection. Importantly, for thrombocytes only grade 1 toxicity was reported. Grade 3 neutropenia and leucopenia occurred in two and three patients, respectively. Mild, transient diarrhea was observed in 10 of the 25 patients. Nausea and vomiting was more frequently observed in the highest dosage group. Serum alkaline phosphatase decreased with nadir averages of 29.5% in females and 52.1% in males. Pain relief was reported by 52%, 60%, and 56% of the patients after 7 days, 4, and 8 weeks, respectively. 223Ra cleared rapidly from blood and was below 1% of initial level at 24 hours. Gamma camera images indicated, in accordance with pretreatment (99m)Tc-MDP scans, accumulation of 223Ra in skeletal lesions. Elimination was mainly intestinal. Median survival exceeded 20 months.

CONCLUSIONS: 223Ra was well tolerated at therapeutically relevant dosages. Phase II studies have therefore been initiated.

Data sources

Read abstract on library site Access full article

Comments

You will need to login, to leave a comment.

epgonline.org is not monitored for collection of adverse event reports. Any adverse events should be reported to your national reporting agency and/or the manufacturer.

Learning Zones

An epgonline.org Learning Zone (LZ) is an area of the site dedicated to providing detailed self-directed medical education about a disease, condition or procedure.

CDK 4/6 inhibitors in metastatic breast cancer

CDK 4/6 inhibitors in metastatic breast cancer

The CDK 4/6 Inhibitors in Metastatic Breast Cancer Learning Zone provides insights and information for metastatic breast cancer (mBC) and CDK 4/6 signalling. This includes the burden and pathophysiology of the disease, the role of CDK 4/6 in cell proliferation and an overview of the CDK 4/6 inhibitors that have been approved for the management of mBC.

Chronic Lymphocytic Leukaemia (CLL)

Chronic Lymphocytic Leukaemia (CLL)

Refine your knowledge of chronic lymphocytic leukaemia (CLL) with information on pathophysiology, diagnosis, treatment options and more

+ 1 more

Cushing's Syndrome

Cushing's Syndrome

Cushing’s syndrome shares symptoms such as hypertension, glucose intolerance and obesity with other common conditions – how can you confidently diagnose this rare disorder?

+ 2 more

Load more

Related Content