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ContraceptionPhase 3NCT00477633

Study of Safety and Efficacy of an Oral Contraceptive

A Phase 3 study testing Norethindrone/ethinyl estradiol in people with Contraception, run by Warner Chilcott at 63 sites in United States.

Completed

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

Official record
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Trial summary

This is a non-comparative study. the primary objective of the study is to assess the efficacy of a low dose oral contraceptive in the prevention of pregnancy. The secondary objectives are to assess the incidence of intracyclic bleeding; and to assess the safety and tolerability of the product. Read more about this study

Who is it for?
Ages 18 to 45 years, women onlyHealthy volunteers can take part
Conditions the study is for
Contraception
What is being tested?
Norethindrone/ethinyl estradiol
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,700 participants
Where
63 sitesUnited States
Study dates
Jun 2007to Feb 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
  • Age 18-45
  • At risk for pregnancy
  • History of regular cycles

Who cannot join

  • Contraindications for use of hormonal contraception
  • Conditions which affect the absorption or metabolism of steroid hormones
  • BMI>35

Trial locations and contacts

63 sites in 1 country.

63 sites in 1 country

United States63 sites
  • Warner Chilcott Investigational Site

    Amite, Louisiana, 70422

  • Warner Chilcott Investigational Site

    Arkansas City, Kansas, 67005

  • Warner Chilcott Investigational Site

    Austin, Texas, 78748

  • Warner Chilcott Investigational Site

    Austin, Texas, 78759

  • Warner Chilcott Investigational Site

    Berlin, New Jersey, 08009

  • Warner Chilcott Investigational Site

    Boynton Beach, Florida, 33472

  • Warner Chilcott Investigational Site

    Brooksville, Florida, 34613

  • Warner Chilcott Investigational Site

    Cary, North Carolina, 27511

  • Warner Chilcott Investigational Site

    Castle Rock, Colorado, 80108

  • Warner Chilcott Investigational Site

    Champaign, Illinois, 61820

  • Warner Chilcott Investigational Site

    Chandler, Arizona, 85224

  • Warner Chilcott Investigational Site

    Chaska, Minnesota, 55318

  • Warner Chilcott Investigational Site

    Clearwater, Florida, 33759

  • Warner Chilcott Investigational Site

    Cleveland, Ohio, 44122

  • Warner Chilcott Investigational Site

    Columbia, South Carolina, 29201

  • Warner Chilcott Investigational Site

    Dallas, Texas, 75234

  • Warner Chilcott Investigational Site

    Decatur, Georgia, 30034

  • Warner Chilcott Investigational Site

    Denver, Colorado, 80218

  • Warner Chilcott Investigational Site

    Edison, New Jersey, 08817

  • Warner Chilcott Investigational Site

    Gainesville, Florida, 32607

  • Warner Chilcott Investigational Site

    Houston, Texas, 77030

  • Warner Chilcott Investigational Site

    Indianapolis, Indiana, 46250

  • Warner Chilcott Investigational Site

    Jacksonville, Florida, 32207

  • Warner Chilcott Investigational Site

    Lakewood, Colorado, 80228

  • Warner Chilcott Investigational Site

    Lawrenceville, New Jersey, 08648

  • Warner Chilcott Investigational Site

    Leesburg, Florida, 34748

  • Warner Chilcott Investigational Site

    Lexington, Kentucky, 40509

  • Warner Chilcott Investigational Site

    Louisville, Kentucky, 40291

  • Warner Chilcott Investigational Site

    Magna, Utah, 84044

  • Warner Chilcott Investigational Site

    Marrero, Louisiana, 70072

  • Warner Chilcott Investigational Site

    Medford, Oregon, 97504

  • Warner Chilcott Investigational Site

    Miami, Florida, 33143

  • Warner Chilcott Investigational Site

    Miami, Florida, 33186

  • Warner Chilcott Investigational Site

    Moorestown, New Jersey, 08051

  • Warner Chilcott Investigational Site

    New Bern, North Carolina, 28562

  • Warner Chilcott Investigational Site

    New York, New York, 10016

  • Warner Chilcott Investigational Site

    Norfolk, Virginia, 23507

  • Warner Chilcott Investigational Site

    Oklahoma City, Oklahoma, 73112

  • Warner Chilcott Investigational Site

    Pembroke Pines, Florida, 33021

  • Warner Chilcott Investigational Site

    Peoria, Illinois, 61615

  • Warner Chilcott Investigational Site

    Philadelphia, Pennsylvania, 19114

  • Warner Chilcott Investigational Site

    Phoenix, Arizona, 85032

  • Warner Chilcott Investigational Site

    Phoenix, Arizona, 85037

  • Warner Chilcott Investigational Site

    Phoenix, Arizona, 85050

  • Warner Chilcott Investigational Site

    Pittsburgh, Pennsylvania, 15206

  • Warner Chilcott Investigational Site

    Pottstown, Pennsylvania, 19464-3224

  • Warner Chilcott Investigational Site

    Raleigh, North Carolina, 27612

  • Warner Chilcott Investigational Site

    Richmond, Virginia, 23233

  • Warner Chilcott Investigational Site

    Salt Lake City, Utah, 84109

  • Warner Chilcott Investigational Site

    Salt Lake City, Utah, 84121

  • Warner Chilcott Investigational Site

    San Antonio, Texas, 78229

  • Warner Chilcott Investigational Site

    San Diego, California, 92103

  • Warner Chilcott Investigational Site

    San Diego, California, 92108

  • Warner Chilcott Investigational Site

    St. Petersburg, Florida, 33709

  • Warner Chilcott Investigational Site

    Tempe, Arizona, 85282

  • Warner Chilcott Investigational Site

    Tucson, Arizona, 85712

  • Warner Chilcott Investigational Site

    Virginia Beach, Virginia, 23456

  • Warner Chilcott Investigational Site

    Vista, California, 92083

  • Warner Chilcott Investigational Site

    West Palm Beach, Florida, 33401

  • Warner Chilcott Investigational Site

    West Palm Beach, Florida, 33409

  • Warner Chilcott Investigational Site

    West Valley City, Utah, 84120

  • Warner Chilcott Investigational Site

    Wichita, Kansas, 67207

  • Warner Chilcott Investigational Site

    Winston-Salem, North Carolina, 27103

Other trials in United States

About this study

Official title: An Open Label Study of the Contraceptive Efficacy of Norethindrone and Ethinyl Estradiol.

This is a non-comparative study. the primary objective of the study is to assess the efficacy of a low dose oral contraceptive in the prevention of pregnancy. The secondary objectives are to assess the incidence of intracyclic bleeding; and to assess the safety and tolerability of the product.

Conditions
Contraception
Being tested
Norethindrone/ethinyl estradiol
Keywords
Contraception

What participants receive

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

  • Norethindrone/ethinyl estradiolDrug

    1 tablet per day

Study groups in NCT00477633
Study groupRoleWhat they receive
Norethindrone/ethinyl estradiolExperimental1 tablet per day
Receives: Drug: Norethindrone/ethinyl estradiol

What is being measured

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

  1. Pearl Index, 18-35 Years, MITT Population

    Pregnancy rate in women 18-35 years old, Pearl Index - number of pregnancies per 100 women-years of treatment

    Measured: 13 cycles (28 days each), approximately 364 days

Secondary outcomes (2)
  1. Mean Number of Days of Intracyclic Bleeding & Spotting, Cycles 2-13, MITT Population

    Measured: 12 cycles (28 days each), approximately 336 days

  2. Mean Median Duration (Days) of Intracyclic Bleeding & Spotting, Cycles 2-13, MITT Population

    Each IB episode has a unique duration, with 0, 1, 2, 3 or more episodes per cycle. To obtain "mean median duration" of episodes during a cycle, take the median duration of all episodes in each cycle. If there are no episodes in the cycle, then median duration is undefined/missing for that cycle. 1 episode - median duration = duration of that episode, 2 episodes - median duration = average of 2 durations, more than 2 episodes, calculated in usual way for median of an ordered set of numbers. Once median determined for each cycle/subject, the mean \& SD of those quantities calculated.

    Measured: 12 cycles (28 days each), approximately 336 days

Timeline

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

  1. First posted24 May 2007 (estimated)
  2. Study startJun 2007
  3. Primary completionJan 2009
  4. Study completionFeb 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
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
1,700 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00477633
Sponsor's protocol ID
PR-00207
Status last verified
Apr 2013
First submitted
22 May 2007
Last updated
22 Apr 2013
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Norethindrone/ethinyl estradiol in people with Contraception, run by Warner Chilcott at 63 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 4 inclusion and 3 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 22 Apr 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 63 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 24 Jan 2011). 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, 18-35 Years, MITT Population (time frame: 13 cycles (28 days each), approximately 364 days). 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 22 Apr 2013.

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