Trial Outcomes & Findings for Study of Safety and Efficacy of an Oral Contraceptive (NCT NCT00391807)

NCT ID: NCT00391807

Last Updated: 2013-04-22

Results Overview

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

1683 participants

Primary outcome timeframe

13 cycles, 28 days each (1 year)

Results posted on

2013-04-22

Participant Flow

Recruitment period 01 Nov '06 thru 24 Aug '08

Participant milestones

Participant milestones
Measure
Norethindrone/Ethinyl Estradiol
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Overall Study
STARTED
1683
Overall Study
COMPLETED
968
Overall Study
NOT COMPLETED
715

Reasons for withdrawal

Reasons for withdrawal
Measure
Norethindrone/Ethinyl Estradiol
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Overall Study
Did not receive study medication
23
Overall Study
Adverse Event
177
Overall Study
Pregnancy
25
Overall Study
Lost to Follow-up
227
Overall Study
Withdrawal by Subject
147
Overall Study
Protocol Violation
20
Overall Study
Various
96

Baseline Characteristics

Study of Safety and Efficacy of an Oral Contraceptive

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Norethindrone/Ethinyl Estradiol
n=1683 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Age Continuous
28.6 years
STANDARD_DEVIATION 6.9 • n=5 Participants
Age, Customized
18-35 years
1295 participants
n=5 Participants
Age, Customized
>35 years
287 participants
n=5 Participants
Gender
Female
1582 participants
n=5 Participants
Gender
Male
0 participants
n=5 Participants
Region of Enrollment
United States
1582 participants
n=5 Participants

PRIMARY outcome

Timeframe: 13 cycles, 28 days each (1 year)

Population: Modified Intent to Treat Population (MITT), Women Aged 18-35, 27 women had no cycles evaluable for pregnancy because they used alternative contraceptive methods in all cycles - 1555 subjects evaluable in MITT population. Number of pregnancies per 100 women-years of treatment in MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=24 Pregnancies
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Pregnancy Rate (Expressed as Pearl Index) in Women Aged 18 to 35, MITT Population,
2.554 Pregnancy Rate

PRIMARY outcome

Timeframe: 13 Cycles, 28 days each (1 year)

Population: MITT Population, All Subjects 18-45 years old, 27 women had no cycles evaluable for pregnancy because they used alternative contraceptive methods in all cycles - 1555 subjects evaluable in MITT population. Number of pregnancies per 100 women-years of treatment in MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=26 Pregnancies
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Pregnancy Rate (Expressed as Pearl Index) in Women Aged 18-45, MITT Population
2.167 Pregnancy Rate

SECONDARY outcome

Timeframe: 2 Cycles, 28 days each (56 days)

Population: MITT Population

MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Number of Intracyclic Bleeding (IB)/Spotting Days Cycle 2, MITT Population
3.21 Bleeding/Spotting Days
Standard Deviation 4.15

SECONDARY outcome

Timeframe: 6 cycles, 28 days each (168 days)

Population: MITT Population

MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Number of Intracyclic Bleeding (IB)/Spotting Days Cycle 6, MITT Population
2.00 Bleeding/Spotting Days
Standard Deviation 3.12

SECONDARY outcome

Timeframe: 13 cycles, 28 days each (1 year)

Population: MITT Population

MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Number of Intracyclic Bleeding (IB)/Spotting Days Cycle 13, MITT Population
1.81 Bleeding/Spotting Days
Standard Deviation 3.01

SECONDARY outcome

Timeframe: 2 cycles, 28 days each (56 days)

Population: MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Percentage of Subjects With Withdrawal Bleeding (%), Cycle 2, MITT Population
34.8 Percentage of Participants

SECONDARY outcome

Timeframe: 6 cycles, 28 days each (168 days)

Population: MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Percentage of Subjects With Withdrawal Bleeding (%), Cycle 6, MITT Population
25.0 Percentage of Participants

SECONDARY outcome

Timeframe: 13 cycles, 28 days each (1 year)

Population: MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Percentage of Subjects With Withdrawal Bleeding (%), Cycle 13, MITT Population
22.4 Percentage of Participants

SECONDARY outcome

Timeframe: 2 cycles, 28 days each (56 days)

Population: MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Median Duration of Withdrawal Bleeding, Cycle 2, MITT Population
3.93 Days
Standard Deviation 2.18

SECONDARY outcome

Timeframe: 6 cycles, 28 days each (168 days)

Population: MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Median Duration of Withdrawal Bleeding, Cycle 6, MITT Population
3.99 Days
Standard Deviation 2.11

SECONDARY outcome

Timeframe: 12 cycles, 28 days each (336 days)

Population: MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Median Duration of Withdrawal Bleeding, Cycle 12, MITT Population
3.85 Days
Standard Deviation 2.07

SECONDARY outcome

Timeframe: 2 cycles, 28 days each (56 days)

Population: MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Total Number of Bleeding Days Per Cycle, Cycle 2, MITT Population
4.57 Days
Standard Deviation 4.94

SECONDARY outcome

Timeframe: 6 cycles, 28 days each (168 days)

Population: MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Total Number of Bleeding Days Per Cycle, Cycle 6, MITT Population
3.00 Days
Standard Deviation 3.73

SECONDARY outcome

Timeframe: 13 cycles, 28 days each (1 year)

Population: MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Total Number of Bleeding Days Per Cycle, Cycle 13, MITT Population
3.36 Days
Standard Deviation 4.51

SECONDARY outcome

Timeframe: 2 cycles, 28 days each (56 days)

Population: MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Percentage of Subjects With Amenorrhea, Cycle 2, MITT Population
30.7 Percentage of Participants

SECONDARY outcome

Timeframe: 6 cycles, 28 days each (168 days)

Population: MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Percentage of Subjects With Amenorrhea, Cycle 6, MITT Population
42.9 Percentage of Participants

SECONDARY outcome

Timeframe: 13 cycles, 28 days each (1 year)

Population: MITT Population

Outcome measures

Outcome measures
Measure
Norethindrone/Ethinyl Estradiol
n=1582 Participants
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Percentage of Subjects With Amenorrhea, Cycle 13, MITT Population
49.1 Percentage of Participants

Adverse Events

Norethindrone/Ethinyl Estradiol

Serious events: 15 serious events
Other events: 390 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Norethindrone/Ethinyl Estradiol
n=1660 participants at risk
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Vascular disorders
Deep Vein Thrombosis
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Infections and infestations
Appendicitis
0.18%
3/1660 • Number of events 3 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Pregnancy, puerperium and perinatal conditions
Hyperemesis Gravidarum
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Reproductive system and breast disorders
Ovarian Cyst
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Vascular disorders
Venous Thrombosis (Ovarian)
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Hepatobiliary disorders
Cholecystitis
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Respiratory, thoracic and mediastinal disorders
Pneumonia
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Gastrointestinal disorders
Food Poisoning
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Nervous system disorders
Transverse Sinus Thrombosis
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Metabolism and nutrition disorders
Dehydration
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Metabolism and nutrition disorders
Hypokalaemia
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Infections and infestations
Pharyngitis
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Infections and infestations
Sepsis
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Gastrointestinal disorders
Abdominal Pain
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Surgical and medical procedures
Partial Hysterectomy with Bladder Sling (Elective Therapeutic Procedure)
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Injury, poisoning and procedural complications
Radius Fracture
0.06%
1/1660 • Number of events 1 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.

Other adverse events

Other adverse events
Measure
Norethindrone/Ethinyl Estradiol
n=1660 participants at risk
1 tablet norethindrone acetate (NETA) 1mg/ethinyl estradiol (EE)10 mcg daily for 24 days, 1 EE 10 mcg tablet daily for 2 days, 1 inactive ferrous fumarate tablet daily for 2 days
Nervous system disorders
Headache
7.0%
116/1660 • Number of events 116 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Respiratory, thoracic and mediastinal disorders
Upper Respiratory Tract Infection
6.2%
103/1660 • Number of events 103 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Respiratory, thoracic and mediastinal disorders
Sinusitis
5.2%
86/1660 • Number of events 86 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.
Respiratory, thoracic and mediastinal disorders
Nasopharyngitis
5.1%
85/1660 • Number of events 85 • 1 Nov 2006 thru 27 Aug 2008 - 1 year, 9 months
1683 Subjects Randomized but 23 subjects did not take study medication therefore 1660 subjects evaluated for adverse events.

Additional Information

Grexan Wulff, Manager Regulatory Affairs

Warner Chilcott

Phone: 973-442-3376

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: LTE60