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Cancer of KidneyPhase 1NCT00199888

Safety Study With the Antibody, cG250, and Isotope, 124-Iodine, to Diagnose Patients With Renal Masses.

A Phase 1 study testing 124-Iodine-cG250 (124I-cG250) in people with Cancer of Kidney and Kidney Cancer, run by Ludwig Institute for Cancer Research at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to see if an antibody (cG250) attached to a radioactive substance (Iodine-124) safely detects clear cell renal cancer in patients with kidney tumors scheduled for surgery. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Cancer of Kidney, Kidney Cancer, Renal Cancer
What is being tested?
124-Iodine-cG250 (124I-cG250)
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
26 participants
Where
1 siteUnited States
Study dates
Jun 2005to 29 May 2009
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Presence of a renal mass.
  • Scheduled for surgical resection of renal mass.
  • Expected survival of at least 3 months.
  • Karnofsky performance scale ≥70.
  • The following laboratory results should be within the following limits within the last 4 weeks prior to study day 1:
  • Absolute neutrophil count (ANC) ≥ 1.5 x 10E9/L
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  • Platelet count ≥ 100 x 10E9/L
  • Serum bilirubin ≤ 2.0 mg/dL
  • Aspartate aminotransferase (AST) ≤ 2.5 x upper limit of normal (ULN)
  • Alanine aminotransferase (ALT) ≤ 2.5 x ULN
  • Serum creatinine ≤ 2.0 mg/dL
  • Pregnancy Test to be performed on female patients of childbearing potential within 24-48 hours before administration of radioactive material.
  • Recovered from toxicity of any prior therapy.
  • Able and willing to give valid written informed consent.

Who cannot join

  • Intercurrent medical condition that may limit the amount of antibody to be administered.
  • Intercurrent medical condition that renders the patient ineligible for surgery.
  • New York Heart Association Class III/IV cardiac disease.
  • History of autoimmune hepatitis.
  • Chemotherapy, radiotherapy, or immunotherapy within 4 weeks prior to the first cG250 dose.
  • Mental impairment that may compromise the ability to give informed consent and comply with the requirements of the study.
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  • Lack of availability for immunological and clinical follow-up assessments.
  • Participation in any other clinical trial involving another investigational agent within 4 weeks prior to enrollment.
  • Women who are pregnant or breastfeeding.
  • Allergy to iodine.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Memorial Sloan-Kettering Cancer Center

    New York, New York, 10021

Other trials in United States

About this study

Official title: Pilot Study of Iodine-124 Labeled Chimeric G250 (124I-cG250) in Presurgical Patients With Renal Masses

The purpose of this study is to see if an antibody (cG250) attached to a radioactive substance (Iodine-124) safely detects clear cell renal cancer in patients with kidney tumors scheduled for surgery.

Read the detailed description

Antibodies are proteins made by the immune system. They fight things that the body sees as foreign, such as bacteria and viruses. The body can also see cancer cells as foreign. When the body sees a foreign invader, it sends out antibodies that tag the invader. Once this happens, the immune system can work to destroy whatever the antibody has tagged.

Monoclonal antibodies are antibodies that can be made in the lab. They tag a portion of a cancer cell. Early monoclonal antibodies were made from antibodies grown in mice. They caused an antibody response in humans after one dose. Now they are more like human antibodies, and thus, do not produce the same reactions on repeated doses. These are called chimeric antibodies. The antibody we will use in this study is called chimeric G250 (cG250).

Recent research has shown that some antibodies can attach themselves to cancer cells, and that they bind to very few normal cells. This could help cancer treatment in two ways. One is that the body's own immune system might work to destroy tagged cancer cells. The other is that we can attach chemotherapy drugs or radioactive chemicals to the antibodies. These can then deliver treatment when the antibodies attach to the cancer cells.

This study is being done to test the tagging ability of cG250 to cancer cells. After you receive cG250, you will have a scan. The picture the scan produces will show where the antibody has collected inside the body. From this, it is possible to measure how well cG250 can detect kidney cancer. This is NOT a treatment for renal cancer. After your surgery, we will examine the tumor and other tissue to see how much of the antibody has attached to the tumor.

Being tested
124-Iodine-cG250 (124I-cG250)
Keywords
Kidney Cancer, Renal Cancer, Neoplasms, Kidney, cG250, antibody, Iodine 124
Medical subject headings
Kidney Neoplasms, Carcinoma, Renal Cell

What participants receive

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

  • 124-Iodine-cG250 (124I-cG250)Drug

Study groups in NCT00199888
Study groupRoleWhat they receive
124I-cG250ExperimentalPatients who were scheduled for surgical resection of renal masses received a single intravenous (IV) dose of 10 mg of 5 milliCurie (mCi) /10 mg 124I-cG250. Patients underwent Positron-Emission Tomography/Computed Tomography (PET/CT) imaging of the whole body on at least 2 occasions: once following injection and once immediately prior to surgical resection. Patients were scheduled for surgical resection of their renal masses on day 8.
Receives: Drug: 124-Iodine-cG250 (124I-cG250)

What is being measured

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

  1. Positive Predictive Value (PPV) of 124I-cG250 Based on Positron-Emission Tomography/Computed Tomography (PET/CT) Imaging in the Detection of Clear Cell Renal Cell Carcinoma (RCC) Compared to Pathology of Tumor Mass at Surgical Resection.

    Patients were listed as PET-positive based on a tumor to nontumor radioactive uptake ratio of > 3 and PET-negative if less than or equal to 3.

    The resected renal mass (tumor) was subjected to pathological evaluation, and a diagnosis of clear cell RCC or non-clear cell RCC was made.

    PPV is the proportion of patients with a positive PET scan who actually have the disease based on pathology. Patients who have a positive PET scan on imaging and clear cell RCC on pathology will be considered true-positives. Patients who have negative PET scans on imaging and non-clear cell RCC on pathology will be considered true-negatives. Patients with positive PET scans on imaging and non-clear cell RCC on pathology will be considered false positives and those with clear cell RCC on pathology but negative PET scans on imaging will be considered false negatives.

    Measured: 8 days

Secondary outcomes (3)
  1. Negative Predictive Value (NPV) of 124I-cG250 Based on Positron-Emission Tomography/Computed Tomography (PET/CT) Imaging in the Detection of Clear Cell Renal Cell Carcinoma (RCC) Compared to Pathology of Tumor Mass at Surgical Resection.

    Patients were listed as PET-positive based on a tumor to nontumor radioactive uptake ratio of > 3 and PET-negative if less than or equal to 3.

    The resected renal mass (tumor) was subjected to pathological evaluation, and a diagnosis of clear cell RCC or non-clear cell RCC was made.

    NPV is the ratio of participants who do not have clear cell RCC to all those who had negative PET scans.

    Patients who have a positive PET scan on imaging and clear cell RCC on pathology will be considered true-positives. Patients who have a negative PET scan on imaging and do not have clear cell RCC on pathology will be considered true-negatives. Patients with a positive PET scan on imaging and do not have clear cell RCC on pathology will be considered false positives and those with clear cell RCC on pathology but negative PET scans on imaging will be considered false negatives.

    Measured: 8 days

  2. Sensitivity of 124I-cG250 Based on Positron-Emission Tomography/Computed Tomography (PET/CT) Imaging in the Detection of Clear Cell Renal Cell Carcinoma (RCC) Compared to Pathology of Tumor Mass at Surgical Resection.

    Patients were listed as PET-positive based on a tumor to nontumor radioactive uptake ratio of > 3 and PET-negative if less than or equal to 3.

    The resected renal mass (tumor) was subjected to pathological evaluation, and a diagnosis of clear cell RCC or non-clear cell RCC was made.

    Sensitivity is defined as the ratio of the proportion of the patients who have clear cell RCC based on pathology and whose PET scans are positive over the number of patients with clear cell RCC. Patients who have a positive PET scan on imaging and clear cell RCC on pathology will be considered true-positives. Patients who have a negative PET scan on imaging and do not have clear cell RCC on pathology will be considered true-negatives. Patients with a positive PET scan on imaging and do not have clear cell RCC on pathology will be considered false positives and those with clear cell RCC on pathology but negative PET scans on imaging will be considered false negatives.

    Measured: 8 days

  3. Specificity of 124I-cG250 Based on Positron-Emission Tomography/Computed Tomography (PET/CT) Imaging in the Detection of Clear Cell Renal Cell Carcinoma (RCC) Compared to Pathology of Tumor Mass at Surgical Resection.

    Patients were listed as PET-positive based on a tumor to nontumor radioactive uptake ratio of > 3 and PET-negative if less than or equal to 3.

    The resected renal mass (tumor) was subjected to pathological evaluation, and a diagnosis of clear cell RCC or non-clear cell RCC was made.

    Specificity is defined as the number of patients with non-clear cell RCC correctly classified divided by all non-clear cell RCC patients.

    Patients who have a positive PET scan on imaging and clear cell RCC on pathology will be considered a true-positive. Patients who have a negative PET scan on imaging and do not have clear cell RCC on pathology will be considered true negatives. Patients with a positive PET scan on imaging and do not have clear cell RCC on pathology will be considered false positives and those with clear cell RCC on pathology but negative PET scans on imaging will be considered false negatives.

    Measured: 8 days

Timeline

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

  1. First posted20 Sep 2005 (estimated)
  2. Study startJun 2005
  3. Primary completionMar 2006
  4. Study completion29 May 2009

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 1
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
26 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00199888
Sponsor's protocol ID
LUD2002-003
Other IDs
MSKCC IRB#: 05-004
Status last verified
Oct 2022
First submitted
13 Sep 2005
Last updated
10 Oct 2022
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Divgi CR, Pandit-Taskar N, Jungbluth AA, Reuter VE, Gonen M, Ruan S, Pierre C, Nagel A, Pryma DA, Humm J, Larson SM, Old LJ, Russo P. Preoperative characterisation of clear-cell renal carcinoma using iodine-124-labelled antibody chimeric G250 (124I-cG250) and PET in patients with renal masses: a phase I trial. Lancet Oncol. 2007 Apr;8(4):304-10. doi: 10.1016/S1470-2045(07)70044-X.

    PubMed 17395103

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing 124-Iodine-cG250 (124I-cG250) in people with Cancer of Kidney and Kidney Cancer, run by Ludwig Institute for Cancer Research 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 14 inclusion and 10 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: finished, as of the sponsor's last update on 10 Oct 2022. 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.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 14 May 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Positive Predictive Value (PPV) of 124I-cG250 Based on Positron-Emission Tomography/Computed Tomography (PET/CT) Imaging in the Detection of Clear Cell Renal Cell Carcinoma (RCC) Compared to Pathology of Tumor Mass at Surgical Resection. (time frame: 8 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00199888, which also lists 1 linked publication.

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 10 Oct 2022.

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