Assessment of Tartrate-Resistant Acid Phosphatase (TRAP) as a Bone Resorption Marker in Stage IV Breast Cancer Patients With Bone Metastasis

Breast Cancer Clinical Trial

Official title:

"Tartrate-Resistant Acid Phosphatase as a Bone Resorption Marker in Stage IV Breast Cancer Patients With Bone Metastasis During Zometa Treatment: A Pilot Study"

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00264082
• Other study ID #: 419.04
• Status: Completed
• Phase: N/A
• First received: December 9, 2005
• Last updated: December 27, 2017
• Start date: September 2004

Study information

• Verified date: December 2017
• Source: University of Louisville
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

The purpose of this research study is to evaluate the usefulness of the TRAP protein as (1) an early indicator of bone destruction and (2) a tool for assessing the effect of Zometa® in treating symptoms of bone metastases due to breast cancer. Tartrate-resistant acid phosphatase (TRAP) is a protein released into the blood stream as a result of bone destruction caused by metastasis of breast cancer to the bone. Bone destruction causes pain and bone fractures. This study will measure TRAP levels in serum taken from breast cancer patients to see if TRAP levels will be able to predict the effect of Zometa® treatment on bone destruction, pain and bone fractures.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 30
• Est. primary completion date: May 2006
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

1. Histologic or cytologic documentation of breast cancer.

2. Stage IV Breast Cancer Patients with bone metastasis for whom Zometa treatment will be initiated.

3. Age > 18

4. Written informed consent prior to study entry

5. Patients may be currently receiving hormone therapy, chemotherapy and/or radiation therapy to the primary tumor.

6. Life expectancy of at least 6 months.

7. We will include patients who have had previous or current radiation therapy to breast

Exclusion Criteria:

1. Concurrent malignancy with a second primary

2. Stage I, Stage II and Stage III

3. ECOG Performance Status 3 or 4.

4. Renal Failure - serum creatinine >2.O mg/dL at screening

5. AST or ALT > ULN X 3. at screening

6. Bilirubin > 3.0 mg/dL at screening

7. Pregnant women

8. Prior or current bisphosphonate therapy

9. Any skeletal related event due to malignancy prior to study enrollment.

10. Patients with osteoporotic fractures prior to study enrollment.

11. Allergy to bisphosphonates

12. Any radiation therapy for the treatment of bone metastases <4 weeks prior to study start.

13. Any chronic medical condition which would preclude performance or adherence to protocol requirements

14. Inability to provide informed consent

Related Conditions & MeSH terms

• Bone Resorption
• Breast Cancer
• Breast Neoplasms

Intervention

Drug:
• Zometa(drug)

Locations

Country	Name	City	State
United States	James Graham Brown Cancer Center, 529 S. Jackson St.	Louisville	Kentucky

Sponsors (2)

Lead Sponsor	Collaborator
University of Louisville	James Graham Brown Cancer Center

Country where clinical trial is conducted

United States, 

External Links

•   Link