EndometriomaNCT00999479
Post Operative Continuous Active Combination Sex Steroids for the Prevention of Recurrent Endometrioma Formation
A study testing Norethindrone acetate and ethinyl estradiol tablets, USP in people with Endometrioma, run by University of Oklahoma at 1 site in United States.
Trial summary
The aim of this study is to determine whether or not continuous combined oral contraceptive pills (COCP's) decrease the risk of recurrent endometrioma formation. The investigators' hypothesis is that patients who have endometriomas surgically removed and then are started on COCP's will have a decreased incidence of… Read more about this study
- Who is it for?
- Ages 18 to 35 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Endometrioma
- What is being tested?
- Norethindrone acetate and ethinyl estradiol tablets, USP
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 0 participants
- Where
- 1 siteUnited States
- Study dates
- Oct 2009to Oct 2011
- Phase
- Interventional
- 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 35 years
- Women only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Patients with a diagnosis of ovarian endometriotic cyst that has been surgically excited.
Who cannot join
- Current desire to achieve pregnancy or other contraindication to combined oral contraceptive pills.
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Oklahoma Health Sciences Center
Oklahoma City, Oklahoma, 73104
About this study
The aim of this study is to determine whether or not continuous combined oral contraceptive pills (COCP's) decrease the risk of recurrent endometrioma formation. The investigators' hypothesis is that patients who have endometriomas surgically removed and then are started on COCP's will have a decreased incidence of recurrent endometrioma formation. The investigators' research protocol is designed to show a statistically significant decreased incidence of endometrioma formation in the hopes that physicians will use COCP's in patients they have removed an endometrioma in who do not desire immediate fertility. Long term, the investigators hope to establish a standard of care that COCP's be used postoperatively in appropriate candidates to decrease the chance of recurrent endometrioma formation.
Read the detailed description
We plan to identify patients planning to undergo conservative surgery for endometrioma at the University of Oklahoma private practice OB/GYN clinic and at the University of Oklahoma Resident Women's clinic. After clear and appropriate consent and discussion regarding options, we plan to randomize patients to monophasic OCPs vs. placebo following surgery. We plan to enroll 35 patients in each arm and follow them for 24 months following the surgery. Surveillance with pelvic exam and transvaginal ultrasonography will occur at 2, 6 and 12 months. The patients surgery will be done prior to enrolling in our study. We will use information from their surgery only to confirm the diagnosis of endometrioma. The only procedure the subjects will undergo during the protocol are periodic transvaginal ultrasonography.
- Conditions
- Endometrioma
- Being tested
- Norethindrone acetate and ethinyl estradiol tablets, USP, ferrous fumarate (placebo) tablets
- Medical subject headings
- Endometriosis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Norethindrone acetate and ethinyl estradiol tablets, USPDrug
Loestrin® 24 Fe provides a dosage regimen consisting of 24 white progestogen-estrogen contraceptive tablets and 4 brown ferrous fumarate (placebo) tablets.
Each white tablet contains 1 mg norethindrone acetate and 20 mcg ethinyl estradiol. Each white tablet also contains the following inactive ingredients: acacia, lactose, magnesium stearate, starch, confectioner's sugar, and talc.
ferrous fumarate (placebo) tabletsDrug
Loestrin® 24 Fe provides a dosage regimen consisting of 24 white progestogen-estrogen contraceptive tablets and 4 brown ferrous fumarate (placebo) tablets. Each brown tablet contains ferrous fumarate, microcrystalline cellulose, magnesium stearate, povidone, sodium starch glycolate, and compressible sugar. The ferrous fumarate tablets do not serve any therapeutic purpose.
| Study group | Role | What they receive |
|---|---|---|
| Monophasic OCP | Experimental | Patients randomized to this study arm will receive combined oral contraceptive pills. Patients will follow up at 2, 6, 12, 18 and 24 months. On follow up visits pts will have clinical assessment with vaginal and rectal examinations and with transvaginal ultrasonography. As a measure of compliance, patients will return their empty pill packages Receives: Drug: Norethindrone acetate and ethinyl estradiol tablets, USP |
| Placebo | Placebo comparator | Patients assigned to this arm will use non-hormonal, barrier contraceptives to prevent pregnancy.Patients will follow up at 2, 6, 12, 18 and 24 months. On follow up visits pts will have clinical assessment with vaginal and rectal examinations and with transvaginal ultrasonography. As a measure of compliance, patients will return their empty pill packages. Receives: Drug: ferrous fumarate (placebo) tablets |
What is being measured
The primary outcome is the main question the study is designed to answer.
To determine whether or not continuous combined oral contraceptive pills decrease the risk of recurrent endometrioma formation.
Measured: October 2011
Secondary outcomes (1)
Long term, we hope to establish a standard of care that COCPs be used postoperatively in appropriate candidates to decrease the chance of recurrent endometrioma formation.
Measured: October 2011
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Oct 2009 (estimated)
- Study startOct 2009
- Primary completionOct 2011
- Study completionOct 2011
Why it stopped: Poor enrollment
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for EndometriomaStudies of the same condition, open and under way.
- More trials run by University of OklahomaThe sponsor's other registered studies.
- 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 0 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Oklahoma
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Katie M Smith, M.D., Principal investigator, University of Oklahoma
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00999479
- Sponsor's protocol ID
- Endometrioma
- Status last verified
- Dec 2013
- First submitted
- 20 Oct 2009
- Last updated
- 10 Dec 2013
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 10 Dec 2013. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Post Operative Continuous Active Combination Sex Steroids for the Prevention of Recurrent Endometrioma Formation
- ClinicalTrials.gov ID
- NCT00999479
- Acronym / sponsor ID
- Endometrioma
- Conditions
- Endometrioma
- Study type
- Interventional
- Recruitment status
- WithdrawnReason stopped: Poor enrollment
- Enrolment
- 0 participants (actual)
- Lead sponsor
- University of OklahomaUniversity, hospital or other
- Study start
- Oct 2009
- Primary completion
- Oct 2011 (actual)
- Study completion
- Oct 2011 (actual)
- First posted
- 21 Oct 2009 (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.
The aim of this study is to determine whether or not continuous combined oral contraceptive pills (COCP's) decrease the risk of recurrent endometrioma formation. The investigators' hypothesis is that patients who have endometriomas surgically removed and then are started on COCP's will have a decreased incidence of recurrent endometrioma formation. The investigators' research protocol is designed to show a statistically significant decreased incidence of endometrioma formation in the hopes that physicians will use COCP's in patients they have removed an endometrioma in who do not desire immediate fertility. Long term, the investigators hope to establish a standard of care that COCP's be used postoperatively in appropriate candidates to decrease the chance of recurrent endometrioma formation.
Detailed description
We plan to identify patients planning to undergo conservative surgery for endometrioma at the University of Oklahoma private practice OB/GYN clinic and at the University of Oklahoma Resident Women's clinic. After clear and appropriate consent and discussion regarding options, we plan to randomize patients to monophasic OCPs vs. placebo following surgery. We plan to enroll 35 patients in each arm and follow them for 24 months following the surgery. Surveillance with pelvic exam and transvaginal ultrasonography will occur at 2, 6 and 12 months. The patients surgery will be done prior to enrolling in our study. We will use information from their surgery only to confirm the diagnosis of endometrioma. The only procedure the subjects will undergo during the protocol are periodic transvaginal ultrasonography.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Monophasic OCP | Experimental | Drug: Norethindrone acetate and ethinyl estradiol tablets, USPPatients randomized to this study arm will receive combined oral contraceptive pills. Patients will follow up at 2, 6, 12, 18 and 24 months. On follow up visits pts will have clinical assessment with vaginal and rectal examinations and with transvaginal ultrasonography. As a measure of compliance, patients will return their empty pill packages |
| Placebo | Placebo comparator | Drug: ferrous fumarate (placebo) tabletsPatients assigned to this arm will use non-hormonal, barrier contraceptives to prevent pregnancy.Patients will follow up at 2, 6, 12, 18 and 24 months. On follow up visits pts will have clinical assessment with vaginal and rectal examinations and with transvaginal ultrasonography. As a measure of compliance, patients will return their empty pill packages. |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- Patients with a diagnosis of ovarian endometriotic cyst that has been surgically excited.
Key exclusion criteria (1 listed)
- Current desire to achieve pregnancy or other contraindication to combined oral contraceptive pills.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Norethindrone acetate and ethinyl estradiol tablets, USPLoestrin® 24 Fe provides a dosage regimen consisting of 24 white progestogen-estrogen contraceptive tablets and 4 brown ferrous fumarate (placebo) tablets. Each white tablet contains 1 mg norethindrone acetate and 20 mcg ethinyl estradiol. Each white tablet also contains the following inactive ingredients: acacia, lactose, magnesium stearate, starch, confectioner's sugar, and talc. | Drug | Monophasic OCP |
| ferrous fumarate (placebo) tabletsLoestrin® 24 Fe provides a dosage regimen consisting of 24 white progestogen-estrogen contraceptive tablets and 4 brown ferrous fumarate (placebo) tablets. Each brown tablet contains ferrous fumarate, microcrystalline cellulose, magnesium stearate, povidone, sodium starch glycolate, and compressible sugar. The ferrous fumarate tablets do not serve any therapeutic purpose. | Drug | Placebo |
Primary outcome
To determine whether or not continuous combined oral contraceptive pills decrease the risk of recurrent endometrioma formation.
Time frame: October 2011
1 secondary outcome
Long term, we hope to establish a standard of care that COCPs be used postoperatively in appropriate candidates to decrease the chance of recurrent endometrioma formation.
Time frame: October 2011
Results and safety
The study was withdrawn before enrolling participants, so there are no results.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Dec 2013.
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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.
Katie M Smith, M.D. principal investigator
University of Oklahoma
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Norethindrone acetate and ethinyl estradiol tablets, USP in people with Endometrioma, run by University of Oklahoma 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 1 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: withdrawn, as of the sponsor's last update on 10 Dec 2013. 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. Some participants in this study may receive a placebo. 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 was withdrawn before enrolling participants, so there are no results.
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?
To determine whether or not continuous combined oral contraceptive pills decrease the risk of recurrent endometrioma formation. (time frame: October 2011). 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 10 Dec 2013.