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AzTrials

ContraceptionPhase 3NCT00567164

Efficacy and Safety of Two Flexible Extended Regimens of BAY86-5300 (SH T00186D) in Comparison With the Conventional Regimen of YAZ

A Phase 3 study testing EE20/DRSP (BAY86-5300) and EE20/DRSP (YAZ, BAY86-5300) in people with Contraception and Ovulation Inhibition, run by Bayer at 85 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The purpose of this study is to determine whether the study drug is safe and effective. Read more about this study

Who is it for?
Ages 18 to 45 years, women onlyHealthy volunteers can take part
What is being tested?
EE20/DRSP (BAY86-5300) and EE20/DRSP (YAZ, BAY86-5300)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,887 participants
Where
85 sitesUnited States
Study dates
Oct 2007to Nov 2009
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 45 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy women between 18 and 45 requesting oral contraception. Smokers may not exceed 35 years of age.

Who cannot join

  • The use of steroidal oral contraceptives, or any drug that could alter oral contraception metabolism will be prohibited during the study.

Trial locations and contacts

85 sites in 1 country.

85 sites in 1 country

United States85 sites
  • Study site

    Anaheim, California, 92801-2811

  • Study site

    Atlanta, Georgia, 30328

  • Study site

    Beverly Hills, California, 90212

  • Study site

    Bismarck, North Dakota, 58501

  • Study site

    Boise, Idaho, 83702

  • Study site

    Boise, Idaho, 83704

  • Study site

    Boynton Beach, Florida, 33472-2952

  • Study site

    Brooksville, Florida, 34613

  • Study site

    Champaign, Illinois, 61820

  • Study site

    Chandler, Arizona, 85224

  • Study site

    Chattanooga, Tennessee, 37404

  • Study site

    Chesterfield, Missouri, 63017

  • Study site

    Chicago, Illinois, 60612

  • Study site

    Clearwater, Florida, 33759

  • Study site

    Cleveland, Ohio, 44122

  • Study site

    Colleyville, Texas, 76034

  • Study site

    Colorado Springs, Colorado, 80909

  • Study site

    Columbia, South Carolina, 29201

  • Study site

    Columbus, Ohio, 43213

  • Study site

    Coral Gables, Florida, 33134

  • Study site

    Corpus Christi, Texas, 78414

  • Study site

    Crystal River, Florida, 34429

  • Study site

    Dallas, Texas, 75234

  • Study site

    Decatur, Georgia, 30034

  • Study site

    Denver, Colorado, 80218

  • Study site

    Durham, North Carolina, 27713

  • Study site

    Greenwood Village, Colorado, 80111

  • Study site

    Houston, Texas, 77054

  • Study site

    Houston, Texas, 77074

  • Study site

    Idaho Falls, Idaho, 83404

  • Study site

    Jackson, Tennessee, 38305-3618

  • Study site

    Jacksonville, Florida, 32259

  • Study site

    Jenkintown, Pennsylvania, 19046

  • Study site

    Kansas City, Missouri, 64114

  • Study site

    Knoxville, Tennessee, 37920

  • Study site

    Lake Worth, Florida, 33461

  • Study site

    Las Vegas, Nevada, 89104

  • Study site

    Las Vegas, Nevada, 89109

  • Study site

    LasVegas, Nevada, 89106

  • Study site

    Lexington, Kentucky, 40509

  • Study site

    Lincoln, Nebraska, 68510

  • Study site

    Littleton, Colorado, 80123

  • Study site

    Marrero, Louisiana, 70072

  • Study site

    Memphis, Tennessee, 38120

  • Study site

    Mesa, Arizona, 85203

  • Study site

    Mesa, Arizona, 85213

  • Study site

    Miami, Florida, 33186

  • Study site

    Montgomery, Alabama, 36116

  • Study site

    Moorestown, New Jersey, 08057

  • Study site

    Mt. Pleasant, South Carolina, 29464

  • Study site

    Naples, Florida, 34102

  • Study site

    Nashville, Tennessee, 37203

  • Study site

    New Bern, North Carolina, 28562

  • Study site

    New Brunswick, New Jersey, 08901

  • Study site

    Newburgh, Indiana, 47630

  • Study site

    North Miami, Florida, 33161

  • Study site

    Oklahoma City, Oklahoma, 73112

  • Study site

    Pacific Palisades, California, 90272

  • Study site

    Paw Paw, Michigan, 49079

  • Study site

    Pembroke Pines, Florida, 33024

  • Study site

    Philadelphia, Pennsylvania, 19114

  • Study site

    Phoenix, Arizona, 85031

  • Study site

    Pittsburgh, Pennsylvania, 15206

  • Study site

    Plantation, Florida, 33313

  • Study site

    Portland, Oregon, 97239-3011

  • Study site

    Portland, Oregon, 97239

  • Study site

    Richmond, Virginia, 23233

  • Study site

    Richmond, Virginia, 23294

  • Study site

    Rochester, New York, 14618

  • Study site

    San Diego, California, 92103

  • Study site

    San Diego, California, 92108

  • Study site

    Santa Ana, California, 92705

  • Study site

    Seattle, Washington, 98105

  • Study site

    South Miami, Florida, 33143

  • Study site

    Spokane, Washington, 99207

  • Study site

    St. Petersburg, Florida, 33709

  • Study site

    Tempe, Arizona, 85283

  • Study site

    Tucson, Arizona, 85712

  • Study site

    Tucson, Arizona, 85741

  • Study site

    Vallejo, California, 94589

  • Study site

    Waterbury, Connecticut, 06708

  • Study site

    West Jordan, Utah, 84088

  • Study site

    West Palm Beach, Florida, 33409

  • Study site

    Wichita, Kansas, 67207

  • Study site

    Winston-Salem, North Carolina, 27103

Other trials in United States

About this study

Official title: A Multicenter, Open-label, Three-arm, Active-controlled Study to Assess the Efficacy and Safety of the Oral Contraceptive SH T00186D (0.02 mg Ethinyl Estradiol as Betadex Clathrate and 3 mg Drospirenone) in Two Flexible Extended Regimens and a Conventional Regimen of YAZ in 1756 Healthy Females for 1 Year

The purpose of this study is to determine whether the study drug is safe and effective.

Read the detailed description

The primary efficacy parameter is the number of observed unintended pregnancy during 1 year of treatment. Secondary efficacy parameter include bleeding parameters and menstrual related symptoms Safety parameters included assessment of adverse events, laboratory evaluations.

Being tested
EE20/DRSP (BAY86-5300), EE20/DRSP (YAZ, BAY86-5300)
Keywords
Oral Contraception, Birth Control pill, Healthy women requesting oral contraception, Contraceptive efficacy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • EE20/DRSP (BAY86-5300)Drug

    Also called SH T00186D

    Combination tablet containing 0.02 mg ethinyl estradiol as betadex clathrate and 3.0 mg drospirenone

  • EE20/DRSP (BAY86-5300)Drug

    Also called SH T00186D

    Combination tablet containing 0.02 mg ethinyl estradiol as betadex clathrate and 3.0 mg drospirenone

  • EE20/DRSP (YAZ, BAY86-5300)Drug

    Also called SH T00186D

    Fixed package per cycle containing combination tablets containing 0.02 mg ethinyl estradiol as betadex clathrate and 3.0 mg drospirenone (24 per cycle) + tablets without active substance (4 per cycle)

Study groups in NCT00567164
Study groupRoleWhat they receive
Flexible (extended) regimen no. 1 of EE20/DRSP (BAY86-5300)ExperimentalMinimum of 3 cycles of treatment, each cycle comprising 120 days (maximum) intended treatment with one tablet daily of BAY86-5300 (SH T00186D) followed by a 4-day tablet-free interval. If 3 consecutive days of bleeding and/or spotting occurred between days 25 to 120 of the treatment cycle, a 4-day tablet-free interval was advised. The minimum period between 2 tablet-free intervals was 24 days. After each 4-day tablet-free interval, a new 124-day intended treatment cycle was to be restarted, resulting in a minimum of 3 and maximum of 13 withdrawal bleeding episodes during one year of treatment
Receives: Drug: EE20/DRSP (BAY86-5300)
Flexible (extended) regimen no. 2 of EE20/DRSP (BAY86-5300)ExperimentalMinimum of 3 cycles of treatment, each cycle comprising 120 days (maximum) uninterrupted treatment with one tablet daily of BAY86-5300 (SH T00186D) and a 4-day tablet-free interval. Subjects were permitted to schedule their withdrawal bleeding (ie, 4-day tablet-free interval) at any time between days 25 to 120 of the cycle. Subjects had the option to follow the bleeding rules of the flexible (extended) regimen no. 1 of BAY86-5300. The minimum period between 2 tablet-free intervals was 24 days. After each 4-day tablet-free interval, a new 124-day intended treatment cycle was to be restarted, resulting in a minimum of 3 and maximum of 13 withdrawal bleeding episodes during one year of treatment.
Receives: Drug: EE20/DRSP (BAY86-5300)
Conventional regimen of EE20/DRSP (YAZ, BAY86-5300)Active comparator13 cycles of treatment, each cycle comprising an intake of one tablet daily with 24 days of active tablets of BAY86-5300 (YAZ, SH T00186D) followed by 4 days of tablets without active substance (together resulting in one cycle of 24+4 standard treatment). 13 withdrawal bleeding episodes during one year of treatment were expected.
Receives: Drug: EE20/DRSP (YAZ, BAY86-5300)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Pearl Index

    The Pearl Index (PI) is the number of pregnancies per 100 woman years. The PI is obtained by dividing the number of pregnancies during treatment (conception date on/after the 1st day of treatment and not later than last day of treatment +14 days) by the treatment exposure time (in 100 women years) that the women were under risk of getting pregnant. The Pearl Index was not calculated individually for either the Flexible (Extended) Regimen no. 2 of EE20/DRSP (BAY86-5300) treatment arm, nor for the Conventional Regimen of EE20/DRSP (YAZ, BAY86-5300) treatment arm, because the low sample size in these treatment arms (approximately. 200 subjects per group) did not allow a reliable PI calculation of these groups alone.

    Measured: Up to 1 year

Secondary outcomes (23)
  1. Number of Bleeding Days (Including Spotting Days)

    Number of days per participant with bleeding or spotting

    Measured: Up to 1 year

  2. Number of Bleeding Days (Excluding Spotting Days)

    Number of days per participant with bleeding (excluding spotting days)

    Measured: Up to 1 year

  3. Number of Days With Bleeding (Including and Excluding Spotting) Within 90-day Reference Period 1.

    Number of days per participant with bleeding (including and excluding spotting) within 90-day reference period 1. Reference period 1 (Day 1 to Day 90) was a 90 day period starting with the initial intake of study medication (protocol-specified to occur on first day of menstrual or withdrawal bleeding after screening). Therefore, the first 90-day reference period contains additional bleeding days (associated with the menstrual cycle prior to the start of study medication) when compared to any other reference period.

    Measured: Day 1 to Day 90

  4. Number of Days With Bleeding (Including and Excluding Spotting) Within 90-day Reference Period 2.

    Number of days per participant with bleeding (including and excluding spotting) within 90-day reference period 2. Reference period 2 (Day 91 to Day 180) was a 90-day period that started with the intake of study medication at the beginning of Cycle 4.

    Measured: Day 91 to Day 180

  5. Number of Days With Bleeding (Including and Excluding Spotting) Within 90-day Reference Period 3

    Number of days per participant with bleeding (including and excluding spotting) within 90-day reference period 3. Reference period 3 (Day 181 to Day 270) was a 90-day period that started with the intake of study medication at the beginning of Cycle 7.

    Measured: Day 181 to Day 270

  6. Number of Days With Bleeding/ (Including and Excluding Spotting) Within 90-day Reference Period 4

    Number of days per participant with bleeding (including and excluding spotting) within 90-day reference period 4. Reference period 4 (Day 271 to Day 360) was a 90-day period that started with the intake of study medication at the beginning of Cycle 10.

    Measured: Day 271 to Day 360

  7. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 1

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE.

    Measured: Up to 1 year

  8. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 2

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE.

    Measured: Up to 1 year

  9. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 3

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE.

    Measured: Up to 1 year

  10. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 4

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE.

    Measured: Up to 1 year

  11. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 5

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE.

    Measured: Up to 1 year

  12. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 6

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE.

    Measured: Up to 1 year

  13. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 7

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE.

    Measured: Up to 1 year

  14. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 8

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE.

    Measured: Up to 1 year

  15. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 9

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE.

    Measured: Up to 1 year

  16. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 10

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE.

    Measured: Up to 1 year

  17. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 11

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE.

    Measured: Up to 1 year

  18. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 12

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE.

    Measured: Up to 1 year

  19. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 13

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE. There were no participants who provided bleeding data for cycle 13 in the Flexible (extended) regimen no.1 of EE20/DRSP (BAY86-5300), although one women did receive 13 cycles of treatment.

    Measured: Up to 1 year

  20. Percentage of Participants With a Withdrawal Bleeding Episode for Cycle 14

    A withdrawal bleeding episode (WBE) for the two flexible (extended) treatment arms 1) Ended at the earliest 4 days before the first day of the pill break of that cycle or later, AND 2) Started before or at the latest on the 4th day of the next cycle. For the conventional 24+4 treatment arm, a WBE 1) Started on or after Day 21 of that cycle, and lasted at least until Day 25 of the same cycle, OR 2) Started on or after Day 25 of that cycle, but before Day 25 of the next cycle. If more than one episode satisfied the above criteria, the first episode to occur was considered to be the WBE. There were no participants who received treatment in cycle 14 in the Flexible (extended) regimen no.1 of EE20/DRSP (BAY86-5300). There were no participants who provided bleeding data for cycle 14 in the Flexible (extended) regimen no.2 of EE20/DRSP (BAY86-5300), although one woman did receive 14 cycles of treatment.

    Measured: Up to 1 year

  21. Number of Intracyclic Bleeding Days

    Intracyclic bleeding was considered any bleeding/spotting that occurred between withdrawal bleedings.

    Measured: Up to 1 year

  22. Number of Scheduled and Unscheduled Bleeding Days

    Scheduled bleeding is any bleeding/spotting (bl/sp) that occurs during the tablet free interval through the next 4 days of the subsequent treatment cycle. Unscheduled bleeding is any bl/sp that occurs while taking active hormones, except for bl/sp that occurs during the tablet free interval through day 4 of the subsequent treatment cycle or bl/sp on days 1-7 of treatment cycle 1.

    Measured: Up to 1 year

  23. Length of Cycles

    Cycle length per cycle. For the flexible and stop and go extended treatment arms, a treatment cycle started with the first day of pill intake after a tablet-free interval and ended with the last day of the subsequent tablet-free interval. A tablet-free interval (treatment withdrawal) was defined as at least 3 consecutive days without tablet intake. For the standard 24+4 treatment arm, a new cycle started each time a new blister pack of medication was started.

    Measured: Up to 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Dec 2007 (estimated)
  2. Study startOct 2007
  3. Primary completionNov 2009
  4. Study completionNov 2009

Resources

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 3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
1,887 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00567164
Sponsor's protocol ID
91698
Other IDs
311642
Status last verified
Jan 2014
First submitted
3 Dec 2007
Last updated
12 Mar 2014
Data monitoring committee
No

Publications

  • Jensen JT, Garie SG, Trummer D, Elliesen J. Bleeding profile of a flexible extended regimen of ethinylestradiol/drospirenone in US women: an open-label, three-arm, active-controlled, multicenter study. Contraception. 2012 Aug;86(2):110-8. doi: 10.1016/j.contraception.2011.12.009. Epub 2012 Jan 26.

    PubMed 22281416

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing EE20/DRSP (BAY86-5300) and EE20/DRSP (YAZ, BAY86-5300) in people with Contraception and Ovulation Inhibition, run by Bayer at 85 sites 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: finished, as of the sponsor's last update on 12 Mar 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 85 sites 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.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 12 Mar 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Pearl Index (time frame: Up to 1 year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00567164, which also lists 1 linked publication.

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 12 Mar 2014.

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