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

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

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01886105
Enrollment
4
Registered
2013-06-25
Start date
2013-08-19
Completion date
2017-06-11
Last updated
2019-10-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metastatic Osteosarcoma

Keywords

Osteosarcoma, Osteogenic Sarcoma, Sarcoma, Bone Cancer

Brief summary

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.

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.

Interventions

DRUGSm-EDTMP

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.

Administered 14 days after Treatment infusion of Samarium-153 EDTMP.

RADIATIONExternal Beam Radiotherapy

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.

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Jazz Pharmaceuticals
CollaboratorINDUSTRY
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
10 Years to 65 Years
Healthy volunteers
No

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.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Treated Participants With 6-month Progression Free Survival6 months post-interventionPercentage of patients with high-risk osteogenic sarcoma, treated with high-dose Samarium-153 EDTMP and external beam radiotherapy, without progression at 6 months.

Secondary

MeasureTime frameDescription
Short and Long-term Side Effects of Combined Infusional Samarium-153 EDTMP and External Beam Radiotherapy as Assessed by Number of Participants With ToxicityUp to 48 monthsNumber 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.

Countries

United States

Participant flow

Participants by arm

ArmCount
SmEDTMP/Autologous Stem Cell Infusion/RT
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.
4
Total4

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyLack of Efficacy3

Baseline characteristics

CharacteristicSmEDTMP/Autologous Stem Cell Infusion/RT
Age, Categorical
<=18 years
2 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
2 Participants
Age, Continuous23 years
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
White
2 Participants
Region of Enrollment
United States
4 participants
Sex: Female, Male
Female
1 Participants
Sex: Female, Male
Male
3 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
4 / 4
other
Total, other adverse events
4 / 4
serious
Total, serious adverse events
3 / 4

Outcome results

Primary

Percentage of Treated Participants With 6-month Progression Free Survival

Percentage of patients with high-risk osteogenic sarcoma, treated with high-dose Samarium-153 EDTMP and external beam radiotherapy, without progression at 6 months.

Time frame: 6 months post-intervention

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
SmEDTMP/Autologous Stem Cell Infusion/RTPercentage of Treated Participants With 6-month Progression Free Survival0 Participants
Secondary

Short and Long-term Side Effects of Combined Infusional Samarium-153 EDTMP and External Beam Radiotherapy as Assessed by Number of Participants With Toxicity

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.

Time frame: Up to 48 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
SmEDTMP/Autologous Stem Cell Infusion/RTShort and Long-term Side Effects of Combined Infusional Samarium-153 EDTMP and External Beam Radiotherapy as Assessed by Number of Participants With Toxicity4 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026