CClinicalTrials.gg
Status unknownNCT01470235Updated Nov 1, 2013

Hypodontia and Ovarian Cancer

An observational study in Ovarian Cancer, Hypodontia and Breast Cancer, sponsored by University of Aarhus. Status unknown at 2 sites in Denmark. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2013-11-01.

Sponsored by University of Aarhus · Observational

The sponsor has not verified this record recently (last verified Oct 2013), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Case-control
Time perspective
Retrospective
Enrollment
200
Ages
18 Years and older
Sex
Female
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Study summary

The purpose of this project is to examine whether the risk of developing ovarian cancer is increased in Danish women with congenital missing teeth as a result of their failure to develop (hypodontia). Should this prove to be the case, these women could be offered regular clinical controls and prophylactic removal of their ovaries when menopause enters and the ovaries are no longer functional (producing hormones).

If there is a connection between congenital hypodontia and the development of different types of cancer, the investigators will perform a genetic screening in families with increased risk of cancer and hypodontia for changes in relevant genes, based on the current literature. The investigators hereby search for new genes, which in a changed form leads to an increased risk of cancer and thereby enables us to perform genetic screening in risk families.

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Conditions studied

  • Ovarian Cancer
  • Hypodontia
  • Breast Cancer
  • Colon Cancer

Keywords

  • screening
  • genetic
  • cancer
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In context

Ovarian Neoplasms

2,695 studies on the registry are indexed under Ovarian Neoplasms; 727 are open to participants now.

This study's planned enrollment of 200 is close to the median of 200 across 527 observational studies indexed under Ovarian Neoplasms.

Browse Ovarian Neoplasms studies →

Lead sponsor

University of Aarhus is the lead sponsor of 1,274 studies on the registry; 183 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

All women referred to the department of obstetrics/gynecology under the diagnosis ovarian cancer obs. pro.

Inclusion criteria

  • confirmed suspicion of ovarian cancer.

Exclusion criteria

Exclusion Criteria:

  • suspicion of ovarian cancer disproved.
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Study design

Observational model
Case-control
Time perspective
Retrospective
Enrollment
200 participants (estimated)
Biospecimen retention
Samples with dna

Groups and cohorts

  • Ovarian Cancer

    Women treated for ovarian cancer at the departments of obstetrics and gynecology, Aarhus University Hospital and Rigshospitalet, Copenhagen. Expected recruitment: 200

  • Control patients

    Women referred to the departments of obstetrics and gynecology in Aarhus University Hospital and Rigshospitalet, Copenhagen on benign indication. Expected recruitment: 200.

  • HBOC/HNPCC

    Patients registered in the large Danish Register of HBOC( hereditary breast and ovarian cancer) and HNPCC (hereditary nonpolyposis colorectal cancer). Expected recruitment: 200.

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What researchers measure

Primary outcomes

  1. Prevalence rates of hypodontia in women with ovarian cancer

    Time frame: one year

Secondary outcomes

  1. Genetic causes for hypodontia and ovarian cancer

    Time frame: two years

  2. Prevalence rates of hypodontia in patients with a known risk for epithelial cancer

    Time frame: one year

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Study locations

2 of 2 sites recruiting
  • Aarhus University Hospital
    Skejby, Aarhus 8000, Denmark
    Recruiting
  • Copenhagen University Hospital
    Copenhagen Ø, Copenhagen 2100, Denmark
    Recruiting
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References and documents

Publications

  • Chalothorn LA, Beeman CS, Ebersole JL, Kluemper GT, Hicks EP, Kryscio RJ, DeSimone CP, Modesitt SC. Hypodontia as a risk marker for epithelial ovarian cancer: a case-controlled study. J Am Dent Assoc. 2008 Feb;139(2):163-9. doi: 10.14219/jada.archive.2008.0132. PubMed 18245684 ↗
  • Eisinger F, Burke W, Sobol H. Management of women at high genetic risk of ovarian cancer. Lancet. 1999 Nov 6;354(9190):1648. doi: 10.1016/S0140-6736(05)77137-3. No abstract available. PubMed 10560705 ↗
  • Cobourne MT. Familial human hypodontia--is it all in the genes? Br Dent J. 2007 Aug 25;203(4):203-8. doi: 10.1038/bdj.2007.732. PubMed 17721480 ↗
  • Rolling S. Hypodontia of permanent teeth in Danish schoolchildren. Scand J Dent Res. 1980 Oct;88(5):365-9. doi: 10.1111/j.1600-0722.1980.tb01240.x. PubMed 6936762 ↗
  • Rolling S, Poulsen S. Oligodontia in Danish schoolchildren. Acta Odontol Scand. 2001 Apr;59(2):111-2. doi: 10.1080/000163501750157298. PubMed 11370748 ↗
  • Marchini S, Marabese M, Marrazzo E, Mariani P, Cattaneo D, Fossati R, Compagnoni A, Fruscio R, Lissoni AA, Broggini M. DeltaNp63 expression is associated with poor survival in ovarian cancer. Ann Oncol. 2008 Mar;19(3):501-7. doi: 10.1093/annonc/mdm519. Epub 2007 Nov 12. PubMed 17998283 ↗
  • Lammi L, Arte S, Somer M, Jarvinen H, Lahermo P, Thesleff I, Pirinen S, Nieminen P. Mutations in AXIN2 cause familial tooth agenesis and predispose to colorectal cancer. Am J Hum Genet. 2004 May;74(5):1043-50. doi: 10.1086/386293. Epub 2004 Mar 23. PubMed 15042511 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 1, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01470235
Lead sponsor
University of Aarhus
Collaborators
Danish Cancer Society, Arvid-Nilsson Foundation
Responsible party
Sponsor
First posted
Nov 11, 2011
Start date
Sep 2011
Primary completion
Sep 2014 (estimated)
Completion
Aug 2015 (estimated)
Last update
Nov 1, 2013

Study contacts

Maria Cathrine C. V. Schmidt, MD, PhD-student
Contact
Maria.Cathrine.C.V.Schmidt@sun.au.dk
+4578453472
Jan Blaakaer, Professor
Contact
jab@dadlnet.dk
+4578450000
Jan Blaakaer, Professor, MD, DMSc
study director · Aarhus University Hospital
Maria Cathrine C. V. Schmidt, MD, Ph.d.-student
principal investigator · Aarhus University Hospital
Charlotte Soegaard, MD, ph.d.
study chair · Aarhus University Hospital
Lone Sunde, Associate Professor, PhD
study chair · Aarhus University Hospital
Claus Hoegdall, Professor
study chair · Copenhagen University Hospital at Herlev
Michala O. Lexner, Dentist, PhD
study chair

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Oct 2013. You cannot join it, but the record below documents what was studied.

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