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Effect of Flutamide on Biomarkers in Blood and Tissue Samples From Patients at High Risk of Ovarian Cancer

A Prospective, Phase IIA Study of the Effect of Flutamide (125 MG/DAY) Taken for 6 Weeks on Expression of Potential Biomarkers of Flutamide Action in the Ovaries of Women at Increased Risk for Ovarian Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00699907
Enrollment
127
Registered
2008-06-18
Start date
2005-01-31
Completion date
2014-11-30
Last updated
2018-07-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ovarian Cancer

Keywords

Ovarian epithelial cancer, High risk, Biomarkers

Brief summary

Studying samples of blood and tissue in the laboratory from patients with a high risk of developing ovarian cancer may help doctors identify and learn more about biomarkers related to cancer. We hypothesized that (i) preclinical biologic evidence exists for the role of androgens in ovarian cancer development and (ii) flutamide treatment of women at high risk for ovarian cancer may identify meaningful tissue biomarkers of androgen action and of ovarian cancer initiation. This phase II trial studied the effect of flutamide on biomarkers in blood and tissue samples from patients at high risk of ovarian cancer.

Detailed description

OBJECTIVE: Compare the biomarkers of patients at high risk for ovarian cancer who are undergoing prophylactic oophorectomy and are interested in taking flutamide vs patients at high risk for ovarian cancer who are undergoing prophylactic oophorectomy and are not interested in taking flutamide (control) vs patients who are undergoing oophorectomy for a medical indication (control). OUTLINE: Patients who elected not to receive flutamide received prophylactic oophorectomy or oophorectomy for a medical indication. Patients who elected to receive flutamide received 125mg once daily for 6 weeks in the absence of unacceptable toxicity. Patients then underwent prophylactic oophorectomy. All patients underwent blood and ovarian tissue sample collection at the time of surgery for biomarker laboratory studies. Proteomic, microarray, and polymorphism analysis were performed on the blood and tissue samples.

Interventions

DRUGflutamide

Patients receive oral flutamide (125 MG/DAY) once daily for 6 weeks in the absence of unacceptable toxicity.

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
University of Arizona
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 83 Years
Healthy volunteers
No

Inclusion criteria

for all patients: * ≥ 18 years of age * Able to comply with study and follow-up requirements Inclusion Criteria for high risk patients: * elected to undergo prophylactic salpingo-oophorectomy * fertile patients must use effective non-hormonal contraception * agreed to use a nonhormonal means of contraception before surgery * serum bilirubin ≤ 1.0 x Upper Limit Normal (ULN), alkaline phosphatase, Aspartate Aminotransferase (AST), and Alanine Aminotransferase (ALT) ≤ 2.5 x ULN * serum creatinine ≤ 1.5 x ULN * granulocyte count ≥ 1500/μL * platelet count ≥ 75,000/μL * hemoglobin ≥ 9 g/dL * adequate complete blood count * At high risk for developing ovarian cancer, as defined by any of the following: * Breast Cancer carried a BRCA1 or BRCA2 deleterious mutation, a Lynch syndrome mutation, and/or defined by a family history of: 1 first-degree relative with epithelial ovarian cancer, ≥1 first-degree female relative with breast cancer when ≤40 years old, ≥1 first-degree female relative with breast cancer when ≤50 years old, male relative with breast cancer, and/or family history of breast cancer or ovarian cancer. Inclusion Criteria for low risk patients: * planning to undergo oophorectomy for a medical indication * did not fulfill criteria for high risk of developing ovarian cancer

Exclusion criteria

* liver disease, current alcohol abuse, or cirrhosis * pregnancy or lactation * current use of hormone therapy * active treatment for cancer * recent, current, or planned participation in another experimental drug study * breast cancer within the past 5 years * significant traumatic injury within the past 6 months * major surgery within the past 6 months * any disease, physical examination findings, or clinical laboratory findings giving reasonable suspicion of a disease or condition that contraindicates the continued use of an investigational drug or that may render the patient at high risk from treatment complication

Design outcomes

Primary

MeasureTime frameDescription
Colony Stimulating Factor (CSF-1) Expression in Ovarian EndosalpingiosisSurgeryCSF-1 levels were measured by immunohistochemistry (IHC). The modified H-Score assess extent of nuclear immunoreactivity applicable to steroid receptors. The modified H-scores total range is 0-300. A lower modified H-score indicates weakly staining nuclei. A higher modified H-score indicated strongly staining nuclei. This applies to all measures.
Colony Stimulating Factor (CSF-1) Expression in Ovarian EpitheliumSurgeryCSF-1 levels were measured by immunohistochemistry (IHC).
Colony Stimulating Factor (CSF-1) Expression in Ovarian StromaSurgeryCSF-1 levels were measured by immunohistochemistry (IHC).
Colony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian EndosalpingiosisSurgeryCSF-1R levels were measured by immunohistochemistry (IHC).
Colony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian EpitheliumSurgeryCSF-1R levels were measured by immunohistochemistry (IHC).
Colony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian StromaSurgeryCSF-1R levels were measured by immunohistochemistry (IHC).
Tyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian EndosalpingiosisSurgeryErbB4 levels were measured by immunohistochemistry (IHC).
Tyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian EpitheliumSurgeryErbB4 levels were measured by immunohistochemistry (IHC).
Tyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian StromaSurgeryErbB4 levels were measured by immunohistochemistry (IHC).

Countries

United States

Participant flow

Recruitment details

Participants were recruited from the medical clinic prior to oophorectomy. Participants were recruited from January 2007 until June 2011.

Pre-assignment details

Participants were assigned to groups immediately after being enrolled.

Participants by arm

ArmCount
Treatment Arm
Patients received oral flutamide (125 MG) once daily for 6 weeks in the absence of unacceptable toxicity. Patients then underwent risk-reducing salpingo-oophorectomy. flutamide: Patients receive oral flutamide (125 MG/DAY) once daily for 6 weeks in the absence of unacceptable toxicity.
12
High Risk Arm
High risk patients underwent risk-reducing salpingo-oophorectomy.
47
Low Risk Arm
Low risk patients underwent salpingo-oophorectomy for a medical indication.
48
Total107

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyNo usable sample098
Overall StudyWithdrawal by Subject210

Baseline characteristics

CharacteristicTreatment ArmHigh Risk ArmLow Risk ArmTotal
Age, Continuous45.2 years46.9 years51.7 years48.9 years
Region of Enrollment
United States
12 participants47 participants48 participants107 participants
Sex: Female, Male
Female
12 Participants47 Participants48 Participants107 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
9 / 120 / 470 / 48
serious
Total, serious adverse events
0 / 120 / 470 / 48

Outcome results

Primary

Colony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian Endosalpingiosis

CSF-1R levels were measured by immunohistochemistry (IHC).

Time frame: Surgery

Population: The Overall Number of Participants Analyzed represents all participants with a modified Histo-score that could be evaluated

ArmMeasureValue (MEDIAN)
Treatment ArmColony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian Endosalpingiosis15 Histo-score (H-Score)
High Risk ArmColony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian Endosalpingiosis160 Histo-score (H-Score)
Low Risk ArmColony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian Endosalpingiosis75 Histo-score (H-Score)
p-value: 0.009Wilcoxon Rank Sum Test
p-value: >0.05Wilcoxon Rank Sum Test
Primary

Colony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian Epithelium

CSF-1R levels were measured by immunohistochemistry (IHC).

Time frame: Surgery

ArmMeasureValue (MEDIAN)
Treatment ArmColony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian Epithelium0 Histo-score (H-Score)
High Risk ArmColony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian Epithelium40 Histo-score (H-Score)
Low Risk ArmColony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian Epithelium20 Histo-score (H-Score)
p-value: 0.037Wilcoxon Rank Sum Test
p-value: >0.05Wilcoxon Rank Sum Test
Primary

Colony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian Stroma

CSF-1R levels were measured by immunohistochemistry (IHC).

Time frame: Surgery

Population: The Overall Number of Participants Analyzed represents all participants with a modified Histo-score that could be evaluated

ArmMeasureValue (MEDIAN)
Treatment ArmColony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian Stroma20 Histo-score (H-Score)
High Risk ArmColony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian Stroma40 Histo-score (H-Score)
Low Risk ArmColony Stimulating Factor-1 Receptor (CSF-1R) Expression in Ovarian Stroma53 Histo-score (H-Score)
p-value: 0.01Wilcoxon Rank Sum Test
p-value: >0.05Wilcoxon Rank Sum Test
Primary

Colony Stimulating Factor (CSF-1) Expression in Ovarian Endosalpingiosis

CSF-1 levels were measured by immunohistochemistry (IHC). The modified H-Score assess extent of nuclear immunoreactivity applicable to steroid receptors. The modified H-scores total range is 0-300. A lower modified H-score indicates weakly staining nuclei. A higher modified H-score indicated strongly staining nuclei. This applies to all measures.

Time frame: Surgery

Population: The Overall Number of Participants Analyzed represents all participants with a modified Histo-score that could be evaluated

ArmMeasureValue (MEDIAN)
Treatment ArmColony Stimulating Factor (CSF-1) Expression in Ovarian Endosalpingiosis5 Modified H-Score
High Risk ArmColony Stimulating Factor (CSF-1) Expression in Ovarian Endosalpingiosis130 Modified H-Score
Low Risk ArmColony Stimulating Factor (CSF-1) Expression in Ovarian Endosalpingiosis50 Modified H-Score
p-value: 0.012Wilcoxon Rank Sum Test
p-value: >0.05Wilcoxon Rank Sum Test
Primary

Colony Stimulating Factor (CSF-1) Expression in Ovarian Epithelium

CSF-1 levels were measured by immunohistochemistry (IHC).

Time frame: Surgery

Population: The Overall Number of Participants Analyzed represents all participants with a modified Histo-score that could be evaluated

ArmMeasureValue (MEDIAN)
Treatment ArmColony Stimulating Factor (CSF-1) Expression in Ovarian Epithelium0 Histo-score (H-Score)
High Risk ArmColony Stimulating Factor (CSF-1) Expression in Ovarian Epithelium50 Histo-score (H-Score)
Low Risk ArmColony Stimulating Factor (CSF-1) Expression in Ovarian Epithelium0 Histo-score (H-Score)
p-value: 0.01Wilcoxon Rank Sum Test
p-value: 0.005Wilcoxon Rank Sum Test
Primary

Colony Stimulating Factor (CSF-1) Expression in Ovarian Stroma

CSF-1 levels were measured by immunohistochemistry (IHC).

Time frame: Surgery

ArmMeasureValue (MEDIAN)
Treatment ArmColony Stimulating Factor (CSF-1) Expression in Ovarian Stroma5 Histo-score (H-Score)
High Risk ArmColony Stimulating Factor (CSF-1) Expression in Ovarian Stroma40 Histo-score (H-Score)
Low Risk ArmColony Stimulating Factor (CSF-1) Expression in Ovarian Stroma35 Histo-score (H-Score)
p-value: 0.0006Wilcoxon Rank Sum Test
p-value: >0.05Wilcoxon Rank Sum Test
Primary

Tyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian Endosalpingiosis

ErbB4 levels were measured by immunohistochemistry (IHC).

Time frame: Surgery

ArmMeasureValue (MEDIAN)
Treatment ArmTyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian Endosalpingiosis5 Histo-score (H-Score)
High Risk ArmTyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian Endosalpingiosis60 Histo-score (H-Score)
Low Risk ArmTyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian Endosalpingiosis10 Histo-score (H-Score)
p-value: 0.005Wilcoxon Rank Sum Test
p-value: >0.05Wilcoxon Rank Sum Test
Primary

Tyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian Epithelium

ErbB4 levels were measured by immunohistochemistry (IHC).

Time frame: Surgery

Population: The Overall Number of Participants Analyzed represents all participants with a modified Histo-score that could be evaluated

ArmMeasureValue (MEDIAN)
Treatment ArmTyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian Epithelium0 Histo-score (H-Score)
High Risk ArmTyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian Epithelium55 Histo-score (H-Score)
Low Risk ArmTyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian Epithelium0 Histo-score (H-Score)
p-value: 0.006Wilcoxon Rank Sum Test
p-value: 0.005Wilcoxon Rank Sum Test
Primary

Tyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian Stroma

ErbB4 levels were measured by immunohistochemistry (IHC).

Time frame: Surgery

Population: The Overall Number of Participants Analyzed represents all participants with a modified Histo-score that could be evaluated

ArmMeasureValue (MEDIAN)
Treatment ArmTyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian Stroma10 Histo-score (H-Score)
High Risk ArmTyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian Stroma90 Histo-score (H-Score)
Low Risk ArmTyrosine Kinase V-erb-b2 Erythroblastic Leukemia Viral Oncogene Homolog-4 (ErbB4) Expression in Ovarian Stroma30 Histo-score (H-Score)
p-value: <0.0001Wilcoxon Rank Sum Test
p-value: 0.005Wilcoxon Rank Sum Test

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026