Can removing ovaries prevent cancer in High-Risk women? new study investigates
NCT ID NCT00043472
First seen Jun 25, 2026 · Last updated Aug 14, 2026 · Updated 4 times
Summary
This study followed 40 women at high genetic risk for ovarian cancer due to BRCA mutations or strong family history. One group chose to have their ovaries and fallopian tubes removed to prevent cancer, while the other group opted for regular CA-125 blood tests every 3 months to catch cancer early. Researchers tracked cancer rates, quality of life, and decision-making to see which approach works best.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- surgical removal of ovaries and fallopian tubes (prophylactic salpingo-oophorectomy)
- What this could lead to
- If successful, this could confirm that preventive surgery reduces ovarian cancer risk in high-risk women, and that regular CA-125 blood tests can catch cancers early in those who avoid surgery.
- What could go wrong
- This is an observational study, not a treatment trial, so it won't prove cause and effect. Results may not apply to all women, and surgery carries risks like menopause and surgical complications.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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40 people
The number who actually took part.
- Started
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Jul 2003
- Lead sponsor
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A government research agency
The lead sponsor is the US National Institutes of Health.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Eligible study participants were at least 30 years of age (no upper age limit), had at least one intact ovary, had no prior personal history of ovarian cancer, and were either documented carriers of deleterious germline mutations in BRCA1/BRCA2 or, if not tested, have greater than or equal to 20% estimated probability of being a mutation carrier, based on their family history. Enrollees chose between participating in a novel ovarian cancer screening study (using ROCA, the risk of ovarian cancer algorithm) or undergoing bilateral salpingo-oophorectomy. Extensive biospecimens and questionnaire data were collected, including a major behavioral/psychosocial component. All participants were followed prospectively for 5 years.
- Ages
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19 to 100 years
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
* INCLUSION CRITERIA: To be considered at increased genetic risk of OC, subjects must have: Age greater than or equal to 30; No prior history of OC, including low malignant potential cancers (LMP), or primary papillary serous carcinoma of the peritoneum; At least one intact ovary: Satisfied one of the following additional criteria: The family of the subject has a documented deleterious BRCA1 or BRCA2 mutation - either: * the subject herself has tested positive for a deleterious BRCA1 or BRCA2 mutation; OR * the subject has a first- or second-degree relative with a deleterious BRCA1 or BRCA2 mutation OR The family contains at least two ovarian and/or breast cancers among the subject or first- or second-degree relatives of the subject within the same lineage. This condition is satisfied by multiple primary cancers in the same person. Where breast cancer is required to meet this criterion, at least one breast cancer must have been diagnosed prior to menopause (age at diagnosis less than or equal to 50 if age at menopause is unknown); OR The subject is of Ashkenazi Jewish ethnicity with one first-degree or two second-degree relatives with breast and/or OC. Where breast cancer is required to meet this criterion, at least one case must have been diagnosed prior to menopause (or at age less than or equal to 50, if age at menopause is unknown). OR The subject is of Ashkenazi ancestry and has had breast cancer herself. To meet this criterion, her breast cancer must have been diagnosed prior to menopause (age at diagnosis less than or equal to 50 if age at menopause is unknown). OR The probability of carrying a BRCA1/2 mutation given the family pedigree of breast and OCs exceeds 20% as calculated by BRCAPRO. Note: BRCAPRO does NOT need to be calculated on everyone who enters the study. Patients are eligible based on a family history which meets one of the specific patterns described in this protocol, regardless of BRCAPRO results. BRCAPRO assessment is valuable in families where genetic testing has not been done, and the family history does not fit one of the specific patterns described, but the pattern of cancers leads you to believe that the family might still be considered high-risk. At that point, if the BRCAPRO estimate of being a mutation carrier is greater than 20 percent, then the patient IS eligible. Signed an approved informed consent and authorization permitting release of personal health information. EXCLUSION CRITERIA: A first- or second-degree relative has a deleterious BRCA1/2 mutation, and the subject has tested NEGATIVE for the exact same mutation. Women who are currently pregnant or planning pregnancy during the study. Women who are participating in another OC early detection trial (except for the ROCA study being run by the Cancer Genetics Network. Women who have enrolled in the ROCA study and who subsequently choose to undergo surgery may enroll in the surgical cohort of GOG 0199). Women with psychiatric, psychological or other conditions which prevent fully informed consent. Women with current untreated malignancy (excluding non-melanoma skin cancer). Women with adjuvant radiation therapy or chemotherapy within the past 1 month (31 days). For purposes of this study, any biologic agent administered with an anti-cancer therapeutic intent (e.g., Herceptin) will also not be permitted. Women who have been treated for prior metastatic malignant disease within the past 5 years. Women who have undergone intraperitoneal surgery within the prior 3 months (includes laparoscopy). Women who have had both ovaries removed prior to study entry. Women with a history of any medical condition which places the subject at risk related to the need for donating blood for research purposes, e.g., chronic infectious diseases, severe anemia, hemophilia. Note: Enrollment of women in whom there is a significant pre-operative clinical suspicion that there might exist ovarian or fallopian tube caner should be avoided. The intent of the study is to ascertain subjects who are contemplating a risk-reducing, rather than a therapeutic, procedure. Women with findings of uncertain significant on baseline TVUS remain eligible.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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National Institutes of Health Clinical Center
Bethesda, Maryland, 20892, United States
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