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Differentiation of Bone Sarcomas and Osteomyelitis With Ferumoxytol-Enhanced MRI

Pilot Differentiation of Bone Sarcomas and Osteomyelitis With Ferumoxytol-Enhanced MRI

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01336803
Acronym
Osteosarcoma
Enrollment
32
Registered
2011-04-18
Start date
2011-08-31
Completion date
2023-10-31
Last updated
2023-12-27

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

Conditions

Bone Cancer, Chondrosarcoma, Ewing's Sarcoma, Osteosarcoma, Rhabdomyosarcoma, Bone Necrosis, Bone Sarcoma, Osteomyelitis

Brief summary

This pilot trial studies the differentiation of bone sarcomas and osteomyelitis with ferumoxytol-enhanced magnetic resonance imaging (MRI). Imaging procedures that allow doctors to more accurately differentiate between malignant bone sarcomas and osteomyelitis may help in diagnosing patients correctly and may result in more timely treatment.

Detailed description

BACKGROUND; In this study, T1, T2, and T2\* represent parameters of magnetic resonance imaging (MRI). The T1 relaxation time, also known as the spin-lattice relaxation time, is a measure of how quickly the net magnetization vector (NMV) recovers to its ground state in the direction of B0. T1 is assessed immediately post-contrast. A T1-weighted image (T1WI ) is one of the basic pulse sequences in MRI and demonstrates differences in the T1 relaxation times of tissues. A T1WI relies upon the longitudinal relaxation of a tissue's net magnetization vector (NMV). T2 is a time constant for the decay of transverse magnetization arising from natural interactions at the atomic or molecular levels, and be considered the natural or true T2 of the tissue. However, in any nuclear magnetic resonance (NMR) experiment, transverse magnetization decays much faster than would be predicted by natural atomic and molecular mechanisms. Accordingly, T2 \* is the time constant for the decay of transverse magnetization as observed in a tissue during a MRI scan, and be considered theeffective T2 (represented as T2\*). T2\* is always ≤ T2. In this study, T2 \* is assessed after 24 hours. OUTLINE: Patients receive ferumoxytol intravenously (IV) and then undergo ferumoxytol-enhanced MRI up to 1 hour after infusion and up to 24 hours post-infusion. PRIMARY OBJECTIVES: * Establish magnetic resonance (MR) imaging characteristics of bone sarcomas and osteomyelitis based on their ferumoxytol-enhancement on relatively early post-contrast T1-weighted images. * Establish MR imaging characteristics of bone sarcomas and osteomyelitis based on their ferumoxytol-enhancement on delayed postcontrast T2-weighted images. * Establish T2-weighted MR imaging characteristics of iron-labeled mesenchymal stem cell (MSC) in osteonecrotic bone over time, before and after surgical core decompression and bone marrow implantation. * Adding a second branch for patients who can not receive ferumoxytol but still getting the MRI exam. These patients will server as controls.

Interventions

5 mg/kg by intravenous (IV) administration

Standard of Care magnetic resonance imaging (MRI) scans using GE 1.5T and 3T MRI scanners/

Sponsors

Heike E Daldrup-Link
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
10 Years to 21 Years
Healthy volunteers
No

Inclusion criteria

* Age 10 to 21 years * Suspected or confirmed diagnosis of a bone sarcoma or osteomyelitis * Informed consent with assent as appropriate.

Exclusion criteria

* Contraindication to MRI * Presence of metal implants * Need for sedation or anesthesia * Claustrophobia * Hemosiderosis or hemochromatosis * History of allergic reactions to similar compounds will be obtained and patients with positive history of allergic reactions will be excluded from the study * Females who are pregnancy or nursing

Design outcomes

Primary

MeasureTime frameDescription
T2* Relaxation Time of Bone Sarcomas and Osteomyelitis Subjects24 hoursDifferentiation of bone sarcomas and osteomyelitis with ferumoxytol-enhanced magnetic resonance imaging (MRI) was assessed as the difference of mean T2 \* relaxation time of bone sarcoma and osteomyelitis subjects. The outcome is reported as the difference of the mean T2 \* values, with standard deviation.

Secondary

MeasureTime frameDescription
Differentiation of Bone Sarcomas Pre-ferumoxytol and Post-ferumoxytol ContrastBaseline and Post-Treatment-24 hoursDifferentiation of bone sarcomas pre-ferumoxytol and post-ferumoxytol contrast was assessed by difference of mean T2 \* relaxation time pre-ferumoxytol and post-ferumoxytol contrast, in bone sarcoma subjects only.
Differentiation of Lymphoma and Bone Sarcomas With Ferumoxytol-enhanced MRI24 hoursDifferentiation of lymphoma from bone sarcoma was assessed as the difference of mean T2 \* relaxation time determined by ferumoxytol-enhanced MRI. .
Differentiation of CD68-positive Tumor-associated Macrophages (TAM) in Lymphomas and Bone Sarcomas24 hoursDifferentiation of CD68-positive tumor-associated macrophages (TAM) between lymphoma and bone sarcoma was assessed as the difference of mean area density of CD68-positive TAM in those populations.
Differentiation of CD163-positive Tumor-associated Macrophages (TAM) in Lymphomas and Bone Sarcomas24 hoursDifferentiation of CD163-positive tumor-associated macrophages (TAM) between lymphoma and bone sarcoma was assessed as the difference of mean area density of CD163-positive TAM in those populations.

Countries

United States

Participant flow

Participants by arm

ArmCount
Feraheme
Intravenous injection of Feraheme, 5 mg Fe/kg Feraheme: 5 mg Fe/kg by intravenous adminstration MR Scan: Standard of Care
21
Total21

Baseline characteristics

CharacteristicFeraheme
Age, Categorical
<=18 years
16 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
5 Participants
Age, Continuous14.7 Years
STANDARD_DEVIATION 4
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
16 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
0 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
19 Participants
Region of Enrollment
United States
21 participants
Sex: Female, Male
Female
11 Participants
Sex: Female, Male
Male
10 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 21
other
Total, other adverse events
1 / 21
serious
Total, serious adverse events
0 / 21

Outcome results

Primary

T2* Relaxation Time of Bone Sarcomas and Osteomyelitis Subjects

Differentiation of bone sarcomas and osteomyelitis with ferumoxytol-enhanced magnetic resonance imaging (MRI) was assessed as the difference of mean T2 \* relaxation time of bone sarcoma and osteomyelitis subjects. The outcome is reported as the difference of the mean T2 \* values, with standard deviation.

Time frame: 24 hours

Population: This initial phase of the study was a pilot assessment of participants with bone sarcomas compared to participants with osteomyelitis.

ArmMeasureValue (MEAN)Dispersion
Bone SarcomasT2* Relaxation Time of Bone Sarcomas and Osteomyelitis Subjects7.3 millisecondsStandard Deviation 1.9
OsteomyelitisT2* Relaxation Time of Bone Sarcomas and Osteomyelitis Subjects7.7 millisecondsStandard Deviation 1.9
Secondary

Differentiation of Bone Sarcomas Pre-ferumoxytol and Post-ferumoxytol Contrast

Differentiation of bone sarcomas pre-ferumoxytol and post-ferumoxytol contrast was assessed by difference of mean T2 \* relaxation time pre-ferumoxytol and post-ferumoxytol contrast, in bone sarcoma subjects only.

Time frame: Baseline and Post-Treatment-24 hours

Population: Only the participants with bone sarcomas were evaluated for this outcome.

ArmMeasureGroupValue (MEAN)Dispersion
Bone SarcomasDifferentiation of Bone Sarcomas Pre-ferumoxytol and Post-ferumoxytol ContrastPre-treatment13.80 millisecondsStandard Deviation 2.8
Bone SarcomasDifferentiation of Bone Sarcomas Pre-ferumoxytol and Post-ferumoxytol ContrastPost-treatment8.27 millisecondsStandard Deviation 2.12
Secondary

Differentiation of CD163-positive Tumor-associated Macrophages (TAM) in Lymphomas and Bone Sarcomas

Differentiation of CD163-positive tumor-associated macrophages (TAM) between lymphoma and bone sarcoma was assessed as the difference of mean area density of CD163-positive TAM in those populations.

Time frame: 24 hours

ArmMeasureValue (MEAN)Dispersion
Bone SarcomasDifferentiation of CD163-positive Tumor-associated Macrophages (TAM) in Lymphomas and Bone Sarcomas1.9 Percentage area of CD163-positive TAMStandard Deviation 1.5
OsteomyelitisDifferentiation of CD163-positive Tumor-associated Macrophages (TAM) in Lymphomas and Bone Sarcomas9.4 Percentage area of CD163-positive TAMStandard Deviation 3.1
Secondary

Differentiation of CD68-positive Tumor-associated Macrophages (TAM) in Lymphomas and Bone Sarcomas

Differentiation of CD68-positive tumor-associated macrophages (TAM) between lymphoma and bone sarcoma was assessed as the difference of mean area density of CD68-positive TAM in those populations.

Time frame: 24 hours

ArmMeasureValue (MEAN)Dispersion
Bone SarcomasDifferentiation of CD68-positive Tumor-associated Macrophages (TAM) in Lymphomas and Bone Sarcomas4.8 Percentage of CD68-positive TAMStandard Deviation 1.2
OsteomyelitisDifferentiation of CD68-positive Tumor-associated Macrophages (TAM) in Lymphomas and Bone Sarcomas6.1 Percentage of CD68-positive TAMStandard Deviation 2.3
Secondary

Differentiation of Lymphoma and Bone Sarcomas With Ferumoxytol-enhanced MRI

Differentiation of lymphoma from bone sarcoma was assessed as the difference of mean T2 \* relaxation time determined by ferumoxytol-enhanced MRI. .

Time frame: 24 hours

Population: The analysis population for this outcome includes the participants with bone sarcoma who participated in the pilot study.

ArmMeasureValue (MEAN)Dispersion
Bone SarcomasDifferentiation of Lymphoma and Bone Sarcomas With Ferumoxytol-enhanced MRI14.83 millisecondsStandard Deviation 1.03
OsteomyelitisDifferentiation of Lymphoma and Bone Sarcomas With Ferumoxytol-enhanced MRI7.71 millisecondsStandard Deviation 0.6

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