Combination of External Beam Radiotherapy With 153Sm-EDTMP to Treat High Risk Osteosarcoma

The primary goal of this study will be to examine tumor response after radiation treatment via a combination of Samarium-153 EDTMP and external beam radiotherapy.

Study Overview

Detailed Description

Samarium tracer infusion of 1 mCi/kg administered. SPECT images wil be used to determine the distribution of dose delivered to the tumor. This information will be used to determine target doses of external beam radiotherapy. The treatment infusion of Samarium, 30 mCi/kg, will be administered and dosimetry will confirm total dose delivered, and information will be used to finalize doses of external beam radiotherapy. Approximately 14 days after treatment infusion, autologous stem cells infusion is administered. Radiotherapy will be delivered according to the judgement of the treating radiation oncologist.

Study Type

Interventional

Enrollment (Actual)

4

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Maryland
      • Baltimore, Maryland, United States, 21231
        • Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

10 years to 65 years (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients must be between 13 and 65 years of age, inclusive
  • Must have unresectable primary tumor or metastases
  • Must have measurable disease that is demonstrated by positive Tc-99m Bone Scan. Not all lesions must be positive on bone scan.
  • Creatinine clearance >70ml/min/1.73m2
  • ANC >500/mm3
  • Platelets >50,000/mm3
  • Life expectancy > 8 weeks
  • Karnofsky performance status >50%
  • Stem cell product collected prior to the infusion of Samarium must be available, either by peripheral stem cell mobilization or bone marrow harvest prior to trial entry.

Exclusion Criteria:

  • Patient may not be pregnant or breastfeeding.
  • Patients who have received prior radiotherapy to all areas of current active disease are not eligible.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: SmEDTMP/Autologous Stem Cell Infusion/RT

DAY 1 Tracer dose 153Sm-EDTMP administration (1 mCi/kg) SPECT/High-resolution CT at 4 hours. SPECT/CT (low resolution) at 24 and 48 hrs

DAY 7 Individualized treatment dose 153Sm-EDTMP administration (max 30 mCi/kg) SPECT scans at 4, 24 and 48 hours

DAY 21 (2 weeks following treatment dose) Auto-Stem cell infusion

DAY 40 (approx. two weeks after stem cell rescue) Initiate EBT upon count recovery

1 MONTH following completion of all therapy Response assessment with repeat imaging (CT/MRI, Tc-99m bone scan) 18F-MISO/FDG PET

Subjects receive a "tracer" infusion of Samarium-153 EDTMP at 1 mCi/kg. 3D dosimetry using SPECT images are obtained post "tracer" infusion to determine the distribution of dose delivered to the tumor and surrounding normal tissues. "Tracer" activity will be applied to development of the external beam radiation (EBT) planning. Second "treatment" infusion of Samarium will then be implemented. Maximum activity administered will be 30 mCi/kg.
Other Names:
  • Samarium
  • 153Sm-EDTMP
Administered 14 days after "Treatment" infusion of Samarium-153 EDTMP.
Other Names:
  • Stem Cells

The radiotherapy portion of the combined plan will be delivered according to the judgement of the treating radiation oncologist. The total dose to be used will be modified based on surrounding tissue tolerances as evidenced by Samarium infusion and SPECT image planning.

After the "treatment" infusion, SPECT scans will again be performed to confirm the total dose delivered and subsequently adjust the EBT portion of the treatment plan, as necessary.

Other Names:
  • Radiation

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of Treated Participants With 6-month Progression Free Survival
Time Frame: 6 months post-intervention
Percentage of patients with high-risk osteogenic sarcoma, treated with high-dose Samarium-153 EDTMP and external beam radiotherapy, without progression at 6 months.
6 months post-intervention

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Short and Long-term Side Effects of Combined Infusional Samarium-153 EDTMP and External Beam Radiotherapy as Assessed by Number of Participants With Toxicity
Time Frame: Up to 48 months
Number of patients experiencing any Grade 3-4 toxicity, as defined by CTCAE v4.0 and RTOG Cooperative Group Common Toxicity Criteria, during the trial intervention and follow-up.
Up to 48 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Brian Ladle, MD, PhD, Johns Hopkins University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 19, 2013

Primary Completion (Actual)

December 11, 2015

Study Completion (Actual)

June 11, 2017

Study Registration Dates

First Submitted

June 4, 2013

First Submitted That Met QC Criteria

June 21, 2013

First Posted (Estimate)

June 25, 2013

Study Record Updates

Last Update Posted (Actual)

October 29, 2019

Last Update Submitted That Met QC Criteria

October 11, 2019

Last Verified

October 1, 2019

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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