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OsteosarcomaNCT00580385

Chemotherapy Resistance in Osteogenic Sarcoma and Other Solid Tumors

A study testing Tissue Procurement in people with Osteosarcoma, run by Memorial Sloan Kettering Cancer Center at 1 site in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

The purpose of this study is to investigate tumors in the laboratory to determine how and why they respond, or fail to respond to different drug therapies. This study will also investigate why high pressure develops within tumors and how this affects how well drugs work. Read more about this study

Who is it for?
Any age
Conditions the study is for
Osteosarcoma
What is being tested?
Tissue Procurement
Could I receive a placebo?
No, everyone receives an active treatment
How many people
763 participants
Where
1 siteUnited States
Study dates
Aug 1997to Aug 2027
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • All patients with a presumed or known diagnosis of a primary or secondary bone cancer or other solid tumor who are having or have had a biopsy or surgery to remove tumor for diagnostic or therapeutic reasons. No tumors will be obtained solely for research purposes.
  • All adult patients (> or = to 18 yrs.) will have given written informed consent.
  • All minor patients (<18 yrs.) will have given assent to the best of their ability to understand, and their parent or guardian will have given written informed consent

Who cannot join

  • N/A

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10065

Other trials in United States

About this study

The purpose of this study is to investigate tumors in the laboratory to determine how and why they respond, or fail to respond to different drug therapies. This study will also investigate why high pressure develops within tumors and how this affects how well drugs work. We will also take blood samples before and/or after your procedure to measure biochemical factors that may help us predict the behavior of osteogenic sarcoma and other solid tumors.

Read the detailed description

When tumor tissue known or presumed to be a primary or secondary bone cancer or solid tumor with known elevated intra-tumoral pressure such as retinoblastoma is being removed or has been removed for diagnostic or therapeutic reasons a small sample of it will be obtained for this study. The tumor samples will be used to study in vitro, determinants of chemotherapy resistance and oncogenesis. These determinants will be correlated with histologic response to preoperative chemotherapy and clinical outcome (event free survival). In addition, blood samples (20ml) may be obtained before or after the procedure.

Conditions
Osteosarcoma
Being tested
Tissue Procurement
Keywords
BONE
Medical subject headings
Osteosarcoma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Tissue ProcurementOther

    MTX polyglutamylation, MTX transport, XTT cytotoxicity assays, Quantitative RT-PCR, Southern blotting, Mutation detection, and Western blotting

Study groups in NCT00580385
Study groupRoleWhat they receive
1ExperimentalNot described
Receives: Other: Tissue Procurement

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To test tumor samples obtained from patients with primary or secondary bone cancer for mechanisms of acquired and intrinsic resistance to methotrexate and to relate these findings to histologic response to preoperative chemotherapy and outcome.

    Measured: 2 years

Secondary outcomes (1)
  1. To attempt to grow these tumor cells in short term culture to test the sensitivity of these cells to chemotherapeutic agents and to correlate cytotoxicity with biochemical and molecular studies.

    Measured: 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Dec 2007 (estimated)
  2. Study startAug 1997
  3. Primary completionAug 2027 (estimated)
  4. Study completionAug 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
763 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00580385
Sponsor's protocol ID
97-094
Status last verified
Apr 2026
First submitted
20 Dec 2007
Last updated
1 May 2026
Results posted
No

Questions about this trial

What is this clinical trial studying?

A study testing Tissue Procurement in people with Osteosarcoma, run by Memorial Sloan Kettering Cancer Center at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 1 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To test tumor samples obtained from patients with primary or secondary bone cancer for mechanisms of acquired and intrinsic resistance to methotrexate and to relate these findings to histologic response to preoperative chemotherapy and outcome. (time frame: 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 May 2026.

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