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Childhood Malignant Ovarian Germ Cell TumorNCT01434355

DNA Analysis in Samples From Younger Patients With Germ Cell Tumors and Their Parents or Siblings

An observational study of Childhood Malignant Ovarian Germ Cell Tumor and Childhood Malignant Testicular Germ Cell Tumor, run by Children's Oncology Group 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

This research trial studies deoxyribonucleic acid (DNA) samples from younger patients with germ cell tumor and their parents or siblings. Studying samples of tumor tissue and saliva from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related… Read more about this study

Who is it for?
Ages Up to 19 years
What is being tested?
Laboratory Biomarker Analysis and Questionnaire Administration
How many people
932 participants
Where
1 siteUnited States
Study dates
1 Nov 2011to 4 Aug 2016
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 19 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • The patient is enrolled on COG-ACCRN07
  • The patient has a primary diagnosis of germ cell tumor (GCT) including germinoma (ICCC 9060-9065) teratoma (9080-9084), embryonal carcinoma (9070-9072), yolk sac tumor (9071),choriocarcinoma (9100, 9103, 9104), and mixed GCT (9085, 9101, 9102, 9105) in all sites including the brain and central nervous system and registered with Children's Oncology Group (COG) by a North American member institution
  • The patient must be diagnosed with a germ cell tumor between July 1, 2008 and December 31, 2015
  • The patient must be < 20 years of age at the time of diagnosis
  • The patient must have at least one biological parent alive and willing to participate
  • In the event that one case parent cannot contribute DNA, a case sibling, defined as the biological brother or sister of the study subject, may donate instead
  • All questionnaire respondents must understand English or Spanish
  • Concomitant treatment on a therapeutic trial is not required

Who cannot join

None listed.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Childrens Oncology Group

    Philadelphia, Pennsylvania, 19104

Other trials in United States

About this study

Official title: Molecular Epidemiology of Pediatric Germ Cell Tumors

This research trial studies deoxyribonucleic acid (DNA) samples from younger patients with germ cell tumor and their parents or siblings. Studying samples of tumor tissue and saliva from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer.

Read the detailed description

OBJECTIVES:

  1. To evaluate associations between genetic variation and pediatric germ cell tumor (GCT) using a case-parent triad design to identify variants in four genes, KITLG, SPRY4, BAK1, and DMRT1, associated with pediatric GCT.

II. To evaluate associations between genetic variation and pediatric GCT using a case-parent triad design to include targeted genotyping of single nucleotide polymorphisms (SNPs) in selected key pathways essential for normal in utero germ cell development, specifically genes involved in survival of germ cells during migration, apoptosis, and cell cycle control.

III. To explore inter- and intratumoral heterogeneity in DNA methylation by tumor histology.

OUTLINE: This is a multicenter study.

Patients and parents or siblings undergo saliva sample collection. DNA extracted from saliva samples and from patients' archived tumor tissue samples is genotyped and analyzed by methylation arrays, including methylation-specific polymerasechain reaction (PCR) (pyrosequencing) assays. Genetic variation between pediatric germ cell tumors and parent or sibling is also analyzed. Patients' and family members' health history, demographics, and environmental exposures are collected by questionnaires or telephone interviews. Medical history, such as chronic conditions, prescribed medications and congenital abnormalities, including cryptorchidism, is also collected. Birth characteristics of the child, including birth weight and gestational age, are also captured.

Being tested
Laboratory Biomarker Analysis, Questionnaire Administration
Medical subject headings
Ovarian Germ Cell Cancer, Testicular Neoplasms, Teratoma, Ovarian, Seminoma, Teratoma, Testicular, Endodermal Sinus Tumor

What participants receive

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

  • Laboratory Biomarker AnalysisOther

    Correlative studies

  • Questionnaire AdministrationOther

    Ancillary studies

Study groups in NCT01434355
Study groupRoleWhat they receive
Correlative studiesPatients and parents or siblings undergo saliva sample collection. DNA extracted from saliva samples and from patients' archived tumor tissue samples is genotyped and analyzed by methylation arrays, including methylation-specific PCR (pyrosequencing) assays. Genetic variation between pediatric germ cell tumors and parent or sibling is also analyzed. Patients' and family members' health history, demographics, and environmental exposures are collected by questionnaires or telephone interviews. Medical history, such as chronic conditions, prescribed medications and congenital abnormalities, including cryptorchidism, is also collected. Birth characteristics of the child, including birth weight and gestational age, are also captured.
Receives: Other: Laboratory Biomarker Analysis; Other: Questionnaire Administration

What is being measured

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

  1. Pediatric GCT associated with genetic susceptibility

    Will be modeled using a Poisson regression. A likelihood ratio test determines the statistical significance.

    Measured: Up to 5 years

Secondary outcomes (2)
  1. List of genes that distinguish between the three most common histologic subtypes of pediatric GCT: yolk sac tumor, teratoma, and germinoma

    A permutation based Chi-Square test for categorical covariates or a permutation based Kruskal-Wallis test (continuous risk factors) will be used.

    Measured: Up to 5 years

  2. Validation of array results by pyrosequencing

    A standard case-only approach evaluating differences in methylation by histology, age and gender will be done using chi-square and ANOVA.

    Measured: Up to 5 years

Timeline

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

  1. First posted14 Sep 2011 (estimated)
  2. Study start1 Nov 2011
  3. Primary completion4 Aug 2016
  4. Study completion4 Aug 2016

Resources

More details

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

Study design
Study type
Observational
Observational model
Family based
Time perspective
Prospective
Enrolment
932 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01434355
Sponsor's protocol ID
AEPI10N1
Other IDs
NCI-2011-03464, CDR0000711070, COG-AEPI10N1, AEPI10N1, AEPI10N1
Status last verified
Oct 2017
First submitted
13 Sep 2011
Last updated
7 Jan 2019
Results posted
No

Questions about this trial

What is this clinical trial studying?

An observational study of Childhood Malignant Ovarian Germ Cell Tumor and Childhood Malignant Testicular Germ Cell Tumor, run by Children's Oncology Group 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 8 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 7 Jan 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.

What does the primary outcome measure?

Pediatric GCT associated with genetic susceptibility (time frame: Up to 5 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 7 Jan 2019; AzTrials last refreshed its copy on 27 Oct 2026.

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