NCT03295981 · St. Louis University
Local Bisphosphonate Effect on Recurrence Rate in Extremity Giant Cell Tumor of Bone
What this study is about
The purpose of the clinical study is to investigate whether the local delivery of bisphosphonate as a surgical adjuvant can decrease the chance of a giant cell tumor of bone coming back to the same location. The hypothesis is that the local administration of bisphosphonate will decrease the rate of the tumor returning compared to traditional aggressive surgical removal of the tumor.
View original scientific description
The purpose of the clinical study is to investigate whether the local delivery of bisphosphonate as a surgical adjuvant can decrease the chance of a giant cell tumor of bone coming back to the same location. The hypothesis is that the local administration of bisphosphonate will decrease the rate of the tumor returning compared to traditional aggressive surgical removal of the tumor.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Primary benign GCT of bone
- Lesion located in an extremity
- Lesion amenable to reconstruction (intralesional curettage) defined as having at least one intact column of bone after removal
- No previous systemic bisphosphonate or denosumab therapy
Exclusion criteria
- Recurrent GCT of bone
- Non-extremity location
- Lesion too extensive for intralesional treatment, either due to bone loss, joint invasion, or large soft tissue component
- Children and pregnancy
- Previous systemic bisphosphonate or denosumab therapy
Where
- Los Angeles, California
- Indianapolis, Indiana
- Iowa City, Iowa
- Overland Park, Kansas
- Baltimore, Maryland
- Boston, Massachusetts
- St Louis, Missouri
- Winston-Salem, North Carolina
- Cleveland, Ohio
- Oklahoma City, Oklahoma
- Pittsburgh, Pennsylvania
- Seattle, Washington
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Apr 22, 2026 · Source of record for eligibility and locations