HNPCCNCT01646112
Uncertain Genetic Test Results for Lynch Syndrome
An observational study of HNPCC, run by National Human Genome Research Institute (NHGRI) at 1 site in United States.
Trial summary
Background: Individuals have varying tolerances for receiving ambiguous information. However, not much is known about how ambiguous genetic testing information is received. Also, not much is known about how at-risk individuals internalize and process these results. Read more about this study
- Who is it for?
- Ages 18 to 100 yearsHealthy volunteers can take part
- Conditions the study is for
- HNPCC
- How many people
- 27 participants
- Where
- 1 siteUnited States
- Study dates
- 25 Apr 2012to 5 Feb 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 18 to 100 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Individuals who have received a VUS for Lynch Syndrome must be over 18, have telephone access and speak English. Individuals will be excluded if they ve received their results less than 3 months earlier or more than 6 years ago.
Who cannot join
None listed.
Trial locations and contacts
1 site in 1 country.
United States1 site
National Human Genome Research Institute (NHGRI), 9000 Rockville Pike
Bethesda, Maryland, 20892
About this study
Official title: Living in Lynch Syndrome Limbo: Exploring the Meaning of Uncertain Genetic Test Results
Background:
- Individuals have varying tolerances for receiving ambiguous information. However, not much is known about how ambiguous genetic testing information is received. Also, not much is known about how at-risk individuals internalize and process these results. More information is needed about how this information affects a person s life.
- Lynch Syndrome is a genetic condition that carries a high risk of colon cancer and other cancers. Individuals at risk for Lynch Syndrome can have genetic testing for it. The test may confirm a diagnosis and determine actions that can be taken. Results from genetic testing can also affect the perspectives of relatives who might also be affected. However, genetic testing can also produce variants of unknown significance (VUS). VUS are data that may not provide enough information to make decisions. Researchers want to study people who have received a VUS result for genetic testing for Lynch Syndrome.
Read more
Objectives:
- To learn more about the impact and experience of receiving a VUS for Lynch Syndrome genetic testing.
Eligibility:
- Individuals at least 18 years of age who have recently had a VUS result on a genetic test for Lynch Syndrome.
Design:
- Participants will be asked to answer demographic questions. They will also have a 45- to 60-minute phone interview.
- During the phone interview, participants will be asked a series of questions about their diagnosis. They will be asked about how they received the result and how they felt right after receiving it. They will also discuss who they have spoken to about the result.
Read the detailed description
In the field of cancer genetics, clinicians and patients have encountered challenges related to the significance of unclassified genetic variants (UV) or variants of unknown significance (VUS). As the field of medical genetics moves toward whole genome sequencing (WGS), these challenges will inevitably become more frequent. VUS represent ambiguous and uncertain data, for which pathogenicity has not been demonstrated or excluded in published literature, mutation databases or on the basis of other clinical findings. Such variants present a clinical interpretation challenge and also evoke new counseling dilemmas for the understanding and psychosocial impact of uncertain genetic test results. This exploratory study aims to seek insight into the psychological impact of receiving a VUS through semi-structured interviews with 30 to 40 individuals who have received a VUS test result for one of the Lynch Syndrome/Hereditary Nonpolyposis Colorectal Cancer (HNPCC) mismatch repair genes. The interviews will focus on the experience of receiving this result and any cognitive, affective or behavioral effects related to the uncertainty of the result. Interviews will be transcribed and subjected to thematic analysis to identify themes running through the interviews. Understanding the impact of receiving a VUS may identify areas for future intervention studies to minimize negative effects of these events. Additionally, these data may contribute to the formulation of guidelines surrounding the consent for and disclosure of VUS s for other diseases and ultimately for WGS.
- Conditions
- HNPCC
- Keywords
- Uncertainty, HNPCC, Lynch Syndrome, Genetic Tests
- Medical subject headings
- Colorectal Neoplasms, Hereditary Nonpolyposis
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Jul 2012 (estimated)
- Study start25 Apr 2012
- Study completion5 Feb 2016
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 HNPCCStudies of the same condition, open and under way.
- 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
- Time perspective
- Retrospective
- Enrolment
- 27 participants (actual)
Sponsor and investigators
- Lead sponsor
- National Human Genome Research Institute (NHGRI)
- Sponsor type
- US National Institutes of Health
- Responsible party
- Sponsor
- Investigators
- Barbara B Biesecker, Principal investigator, National Human Genome Research Institute (NHGRI)
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01646112
- Sponsor's protocol ID
- 999912126
- Other IDs
- 12-HG-N126
- Status last verified
- 5 Feb 2016
- First submitted
- 18 Jul 2012
- Last updated
- 17 Dec 2019
- Results posted
- No
Publications
Antoniou A, Pharoah PD, Narod S, Risch HA, Eyfjord JE, Hopper JL, Loman N, Olsson H, Johannsson O, Borg A, Pasini B, Radice P, Manoukian S, Eccles DM, Tang N, Olah E, Anton-Culver H, Warner E, Lubinski J, Gronwald J, Gorski B, Tulinius H, Thorlacius S, Eerola H, Nevanlinna H, Syrjakoski K, Kallioniemi OP, Thompson D, Evans C, Peto J, Lalloo F, Evans DG, Easton DF. Average risks of breast and ovarian cancer associated with BRCA1 or BRCA2 mutations detected in case Series unselected for family history: a combined analysis of 22 studies. Am J Hum Genet. 2003 May;72(5):1117-30. doi: 10.1086/375033. Epub 2003 Apr 3.
PubMed 12677558Kresse A, Jacobowitz DM, Skofitsch G. Distribution of calcitonin gene-related peptide in the central nervous system of the rat by immunocytochemistry and in situ hybridization histochemistry. Ann N Y Acad Sci. 1992 Jun 30;657:455-7. doi: 10.1111/j.1749-6632.1992.tb22798.x. No abstract available.
PubMed 1637098Boks DE, Trujillo AP, Voogd AC, Morreau H, Kenter GG, Vasen HF. Survival analysis of endometrial carcinoma associated with hereditary nonpolyposis colorectal cancer. Int J Cancer. 2002 Nov 10;102(2):198-200. doi: 10.1002/ijc.10667.
PubMed 12385019
Study at a glance
From the registry record, last updated by the sponsor on 17 Dec 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Living in Lynch Syndrome Limbo: Exploring the Meaning of Uncertain Genetic Test Results
- ClinicalTrials.gov ID
- NCT01646112
- Acronym / sponsor ID
- 999912126
- Conditions
- HNPCC
- Keywords
- Uncertainty, HNPCC, Lynch Syndrome, Genetic Tests
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 27 participants (actual)
- Lead sponsor
- National Human Genome Research Institute (NHGRI)US National Institutes of Health
- Study start
- 25 Apr 2012
- Study completion
- 5 Feb 2016
- First posted
- 20 Jul 2012 (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.
Background:
- Individuals have varying tolerances for receiving ambiguous information. However, not much is known about how ambiguous genetic testing information is received. Also, not much is known about how at-risk individuals internalize and process these results. More information is needed about how this information affects a person s life.
- Lynch Syndrome is a genetic condition that carries a high risk of colon cancer and other cancers. Individuals at risk for Lynch Syndrome can have genetic testing for it. The test may confirm a diagnosis and determine actions that can be taken. Results from genetic testing can also affect the perspectives of relatives who might also be affected. However, genetic testing can also produce variants of unknown significance (VUS). VUS are data that may not provide enough information to make decisions. Researchers want to study people who have received a VUS result for genetic testing for Lynch Syndrome.
Objectives:
- To learn more about the impact and experience of receiving a VUS for Lynch Syndrome genetic testing.
Eligibility:
- Individuals at least 18 years of age who have recently had a VUS result on a genetic test for Lynch Syndrome.
Design:
- Participants will be asked to answer demographic questions. They will also have a 45- to 60-minute phone interview.
- During the phone interview, participants will be asked a series of questions about their diagnosis. They will be asked about how they received the result and how they felt right after receiving it. They will also discuss who they have spoken to about the result.
Detailed description
In the field of cancer genetics, clinicians and patients have encountered challenges related to the significance of unclassified genetic variants (UV) or variants of unknown significance (VUS). As the field of medical genetics moves toward whole genome sequencing (WGS), these challenges will inevitably become more frequent. VUS represent ambiguous and uncertain data, for which pathogenicity has not been demonstrated or excluded in published literature, mutation databases or on the basis of other clinical findings. Such variants present a clinical interpretation challenge and also evoke new counseling dilemmas for the understanding and psychosocial impact of uncertain genetic test results. This exploratory study aims to seek insight into the psychological impact of receiving a VUS through semi-structured interviews with 30 to 40 individuals who have received a VUS test result for one of the Lynch Syndrome/Hereditary Nonpolyposis Colorectal Cancer (HNPCC) mismatch repair genes. The interviews will focus on the experience of receiving this result and any cognitive, affective or behavioral effects related to the uncertainty of the result. Interviews will be transcribed and subjected to thematic analysis to identify themes running through the interviews. Understanding the impact of receiving a VUS may identify areas for future intervention studies to minimize negative effects of these events. Additionally, these data may contribute to the formulation of guidelines surrounding the consent for and disclosure of VUS s for other diseases and ultimately for WGS.
Study design
- Time perspective
- Retrospective
Who may qualify
- Ages
- 18 to 100 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Individuals who have received a VUS for Lynch Syndrome must be over 18, have telephone access and speak English. Individuals will be excluded if they ve received their results less than 3 months earlier or more than 6 years ago.
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 17 Dec 2019.
- Background: PubMed 12677558Antoniou A, Pharoah PD, Narod S, Risch HA, Eyfjord JE, Hopper JL, Loman N, Olsson H, Johannsson O, Borg A, Pasini B, Radice P, Manoukian S, Eccles DM, Tang N, Olah E, Anton-Culver H, Warner E, Lubinski J, Gronwald J, Gorski B, Tulinius H, Thorlacius S, Eerola H, Nevanlinna H, Syrjakoski K, Kallioniemi OP, Thompson D, Evans C, Peto J, Lalloo F, Evans DG, Easton DF. Average risks of breast and ovarian cancer associated with BRCA1 or BRCA2 mutations detected in case Series unselected for family history: a combined analysis of 22 studies. Am J Hum Genet. 2003 May;72(5):1117-30. doi: 10.1086/375033. Epub 2003 Apr 3.
- Background: PubMed 1637098Kresse A, Jacobowitz DM, Skofitsch G. Distribution of calcitonin gene-related peptide in the central nervous system of the rat by immunocytochemistry and in situ hybridization histochemistry. Ann N Y Acad Sci. 1992 Jun 30;657:455-7. doi: 10.1111/j.1749-6632.1992.tb22798.x. No abstract available.
- Background: PubMed 12385019Boks DE, Trujillo AP, Voogd AC, Morreau H, Kenter GG, Vasen HF. Survival analysis of endometrial carcinoma associated with hereditary nonpolyposis colorectal cancer. Int J Cancer. 2002 Nov 10;102(2):198-200. doi: 10.1002/ijc.10667.
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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.
Barbara B Biesecker principal investigator
National Human Genome Research Institute (NHGRI)
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 HNPCC, run by National Human Genome Research Institute (NHGRI) 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 17 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 NCT01646112, 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 17 Dec 2019; AzTrials last refreshed its copy on 6 Nov 2026.