CancerNCT00340522
Childhood Cancer and Plexiform Neurofibroma Tissue Microarray for Molecular Target Screening and Clinical Drug Development
An observational study of Cancer, run by National Cancer Institute (NCI) at 1 site in United States.
Trial summary
This study will construct tissue microarrays (TMAs) pertaining to childhood cancer. TMA technology is a recently developed one that allows for evaluating hundreds of tissue samples simultaneously on the DNA, RNA, and protein levels. The goal is to identify a potential molecular signature. Read more about this study
- Who is it for?
- Ages Up to 25 years
- Conditions the study is for
- Cancer
- How many people
- 20 participants
- Where
- 1 siteUnited States
- Study dates
- 7 Sep 2004to 11 Aug 2014
- Phase
- Observational
- Are there results?
- None posted in the registry
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 Up to 25 years
- All sexes
- No healthy volunteers
- Child, Adult
Who may be able to join
- Twenty representative formalin-fixed, paraffin-embedded specimens for each of 17 histologically distinct pediatric solid tumors will be collected from the pathology departments of selected Pediatric Phase I Consortium collaborators.
Who cannot join
None listed.
Trial locations and contacts
1 site in 1 country.
United States1 site
National Cancer Institute (NCI), 9000 Rockville Pike
Bethesda, Maryland, 20892
About this study
This study will construct tissue microarrays (TMAs) pertaining to childhood cancer. TMA technology is a recently developed one that allows for evaluating hundreds of tissue samples simultaneously on the DNA, RNA, and protein levels. The goal is to identify a potential molecular signature. Cancer drug discovery is currently focused on identifying drugs targeted at the molecular level. Such drugs would be more selective and specific for proteins and signaling pathways that are directly involved in the origin of tumors. However, the origin of cancer among adults differs from that of cancer diagnosed in children. The overall approach by the pharmaceutical industry in developing drugs is not likely to be aimed at low-incidence cancers, such as childhood cancers. Thus, the researchers in this study propose to create a childhood cancer TMA that include specimens from a wide range of solid tumors that present a poor prognosis for patients. This TMA would in turn be used to identify antibodies and lead to developing molecularly targeted drugs that would reach clinical trials in adults.
TMAs are created robotically. Small tissue cores are taken from paraffin-embedded tissue blocks and are implanted into new paraffin blocks. The recipient blocks are then processed to produce several hundred specimens that can be evaluated on a single glass slide. Specimens representing 17 distinct kinds of pediatric solid tumors will be used in this study. Also included will be samples of plexiform neurofibroma-that is, benign growths of nervous and connective tissues.
Read more
Tissue specimens will come from patients who were age 25 or younger at the time of diagnosis of their cancer or plexiform neurofibroma. No procedures will be performed for the sole purpose of obtaining tissue for this study.
The TMA developed in this study will not be commercialized. The results for individuals whose tumor specimens are used in the array will not be sent to patients or their treating physicians.
Read the detailed description
Background: Cancer drug discovery is now focused on identifying molecularly targeted drugs that are more selective and specific for proteins and signaling pathways that are directly involved in tumorigenesis. This new paradigm alters the approach to clinical drug development for childhood cancers because the emphasis is on therapeutic targets present in common epithelially-derived adult cancers, which have a different pathogenesis. The pharmaceutical industry is unlikely to undertake target discovery programs for low incidence cancers, such as childhood cancers. Therefore, a more pragmatic approach to the development of molecularly targeted drugs in children is required.
Objective: Construct a childhood cancer tissue microarrays (TMA) for screening and selecting the most appropriate molecularly targeted agents for clinical development in childhood cancers.
Eligibility: Ten to twenty representative specimens (paraffin blocks) for each of 25 histologically distinct pediatric solid tumors or plexiform neurofibromas will be collected.
Design: Using a robotic arrayer, three 0.6 mm cores from each tissue block will be donated into one of 3 recipient paraffin TMA blocks (CNS tumors, sarcomas, embryonal tumors). Standard immunohistochemical techniques will be applied to 5 micro m sections from the TMA block using validated antibodies directed against specific protein targets of interest. If greater than 8 to 20 tumors from each specific histological type of cancer are positive, there is a 95% probability that the true proportion of positive specimens exceeds 20%. The results of the TMA target assessment will guide in the selection of molecularly targeted drugs for pediatric phase I clinical trials in the POB and Pediatric Phase I/Pilot Consortium and the selection of candidate tumors for activity testing in phase II clinical trials. If clinical responses are observed in phase I or II trials in tumor types that express the target on the TMA, we will return to the original paraffin blocks and perform Laser Capture Microdissection and produce reverse-phase lysate protein microarrays to assess the activation state of targeted signaling pathways and investigate the role of the target protein in tumorigenesis of the responsive childhood cancers.
- Conditions
- Cancer
- Keywords
- Sarcoma, Brain Tumor, Embryonal Tumor, Tumor Array, Childhood Cancer, Plexiform Neurofibromas, Drug Screening, Immunohistochemistry
- Medical subject headings
- Neoplasms, Sarcoma, Brain Neoplasms, Neoplasms, Germ Cell and Embryonal, Neurofibroma, Plexiform
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Jun 2006 (estimated)
- Study start7 Sep 2004
- Study completion11 Aug 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for CancerStudies of the same condition, open and under way.
- More trials run by National Cancer Institute (NCI)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Enrolment
- 20 participants (estimated)
Sponsor and investigators
- Lead sponsor
- National Cancer Institute (NCI)
- Sponsor type
- US National Institutes of Health
- Investigators
- Brigitte C Widemann, M.D., Principal investigator, National Cancer Institute (NCI)
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00340522
- Sponsor's protocol ID
- 999904282
- Other IDs
- 04-C-N282
- Status last verified
- 11 Aug 2014
- First submitted
- 19 Jun 2006
- Last updated
- 16 Dec 2019
- Results posted
- No
Publications
Mousses S, Kallioniemi A, Kauraniemi P, Elkahloun A, Kallioniemi OP. Clinical and functional target validation using tissue and cell microarrays. Curr Opin Chem Biol. 2002 Feb;6(1):97-101. doi: 10.1016/s1367-5931(01)00283-6.
PubMed 11827831Pollock PM, Harper UL, Hansen KS, Yudt LM, Stark M, Robbins CM, Moses TY, Hostetter G, Wagner U, Kakareka J, Salem G, Pohida T, Heenan P, Duray P, Kallioniemi O, Hayward NK, Trent JM, Meltzer PS. High frequency of BRAF mutations in nevi. Nat Genet. 2003 Jan;33(1):19-20. doi: 10.1038/ng1054. Epub 2002 Nov 25.
PubMed 12447372Weeraratna AT, Becker D, Carr KM, Duray PH, Rosenblatt KP, Yang S, Chen Y, Bittner M, Strausberg RL, Riggins GJ, Wagner U, Kallioniemi OP, Trent JM, Morin PJ, Meltzer PS. Generation and analysis of melanoma SAGE libraries: SAGE advice on the melanoma transcriptome. Oncogene. 2004 Mar 18;23(12):2264-74. doi: 10.1038/sj.onc.1207337.
PubMed 14755246
Study at a glance
From the registry record, last updated by the sponsor on 16 Dec 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Childhood Cancer and Plexiform Neurofibroma Tissue Microarray for Molecular Target Screening and Clinical Drug Development
- ClinicalTrials.gov ID
- NCT00340522
- Acronym / sponsor ID
- 999904282
- Conditions
- Cancer
- Keywords
- Sarcoma, Brain Tumor, Embryonal Tumor, Tumor Array, Childhood Cancer, Plexiform Neurofibromas, Drug Screening, Immunohistochemistry
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 20 participants (estimated)
- Lead sponsor
- National Cancer Institute (NCI)US National Institutes of Health
- Study start
- 7 Sep 2004
- Study completion
- 11 Aug 2014
- First posted
- 21 Jun 2006 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will construct tissue microarrays (TMAs) pertaining to childhood cancer. TMA technology is a recently developed one that allows for evaluating hundreds of tissue samples simultaneously on the DNA, RNA, and protein levels. The goal is to identify a potential molecular signature. Cancer drug discovery is currently focused on identifying drugs targeted at the molecular level. Such drugs would be more selective and specific for proteins and signaling pathways that are directly involved in the origin of tumors. However, the origin of cancer among adults differs from that of cancer diagnosed in children. The overall approach by the pharmaceutical industry in developing drugs is not likely to be aimed at low-incidence cancers, such as childhood cancers. Thus, the researchers in this study propose to create a childhood cancer TMA that include specimens from a wide range of solid tumors that present a poor prognosis for patients. This TMA would in turn be used to identify antibodies and lead to developing molecularly targeted drugs that would reach clinical trials in adults.
TMAs are created robotically. Small tissue cores are taken from paraffin-embedded tissue blocks and are implanted into new paraffin blocks. The recipient blocks are then processed to produce several hundred specimens that can be evaluated on a single glass slide. Specimens representing 17 distinct kinds of pediatric solid tumors will be used in this study. Also included will be samples of plexiform neurofibroma-that is, benign growths of nervous and connective tissues.
Tissue specimens will come from patients who were age 25 or younger at the time of diagnosis of their cancer or plexiform neurofibroma. No procedures will be performed for the sole purpose of obtaining tissue for this study.
The TMA developed in this study will not be commercialized. The results for individuals whose tumor specimens are used in the array will not be sent to patients or their treating physicians.
Detailed description
Background: Cancer drug discovery is now focused on identifying molecularly targeted drugs that are more selective and specific for proteins and signaling pathways that are directly involved in tumorigenesis. This new paradigm alters the approach to clinical drug development for childhood cancers because the emphasis is on therapeutic targets present in common epithelially-derived adult cancers, which have a different pathogenesis. The pharmaceutical industry is unlikely to undertake target discovery programs for low incidence cancers, such as childhood cancers. Therefore, a more pragmatic approach to the development of molecularly targeted drugs in children is required.
Objective: Construct a childhood cancer tissue microarrays (TMA) for screening and selecting the most appropriate molecularly targeted agents for clinical development in childhood cancers.
Eligibility: Ten to twenty representative specimens (paraffin blocks) for each of 25 histologically distinct pediatric solid tumors or plexiform neurofibromas will be collected.
Design: Using a robotic arrayer, three 0.6 mm cores from each tissue block will be donated into one of 3 recipient paraffin TMA blocks (CNS tumors, sarcomas, embryonal tumors). Standard immunohistochemical techniques will be applied to 5 micro m sections from the TMA block using validated antibodies directed against specific protein targets of interest. If greater than 8 to 20 tumors from each specific histological type of cancer are positive, there is a 95% probability that the true proportion of positive specimens exceeds 20%. The results of the TMA target assessment will guide in the selection of molecularly targeted drugs for pediatric phase I clinical trials in the POB and Pediatric Phase I/Pilot Consortium and the selection of candidate tumors for activity testing in phase II clinical trials. If clinical responses are observed in phase I or II trials in tumor types that express the target on the TMA, we will return to the original paraffin blocks and perform Laser Capture Microdissection and produce reverse-phase lysate protein microarrays to assess the activation state of targeted signaling pathways and investigate the role of the target protein in tumorigenesis of the responsive childhood cancers.
Study design
Who may qualify
- Ages
- Up to 25 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (1 listed)
- Twenty representative formalin-fixed, paraffin-embedded specimens for each of 17 histologically distinct pediatric solid tumors will be collected from the pathology departments of selected Pediatric Phase I Consortium collaborators.
Key exclusion criteria (0 listed)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Dec 2019.
- Background: PubMed 11827831Mousses S, Kallioniemi A, Kauraniemi P, Elkahloun A, Kallioniemi OP. Clinical and functional target validation using tissue and cell microarrays. Curr Opin Chem Biol. 2002 Feb;6(1):97-101. doi: 10.1016/s1367-5931(01)00283-6.
- Background: PubMed 12447372Pollock PM, Harper UL, Hansen KS, Yudt LM, Stark M, Robbins CM, Moses TY, Hostetter G, Wagner U, Kakareka J, Salem G, Pohida T, Heenan P, Duray P, Kallioniemi O, Hayward NK, Trent JM, Meltzer PS. High frequency of BRAF mutations in nevi. Nat Genet. 2003 Jan;33(1):19-20. doi: 10.1038/ng1054. Epub 2002 Nov 25.
- Background: PubMed 14755246Weeraratna AT, Becker D, Carr KM, Duray PH, Rosenblatt KP, Yang S, Chen Y, Bittner M, Strausberg RL, Riggins GJ, Wagner U, Kallioniemi OP, Trent JM, Morin PJ, Meltzer PS. Generation and analysis of melanoma SAGE libraries: SAGE advice on the melanoma transcriptome. Oncogene. 2004 Mar 18;23(12):2264-74. doi: 10.1038/sj.onc.1207337.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Brigitte C Widemann, M.D. principal investigator
National Cancer Institute (NCI)
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Cancer, run by National Cancer Institute (NCI) 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 1 inclusion and 0 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 16 Dec 2019. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00340522, which also lists 3 linked publications.
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 16 Dec 2019; AzTrials last refreshed its copy on 4 Nov 2026.