Trial Outcomes & Findings for Pharmacokinetics of NPC-01 After Single Oral Administration in Healthy Female Volunteers (NCT NCT01246791)

NCT ID: NCT01246791

Last Updated: 2025-06-17

Results Overview

Multiple blood samples will obtains at pretreatment(0 hour), 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0 and 24.0 hours after dosing of NPC-01(1mg norethisterone and 0.02mg ethinyl estradiol) and determination of peak plasma concentration (Cmax) of ethinyl estradiol that are active substances of NPC-01.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

12 participants

Primary outcome timeframe

0, 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 24.0 hours after single dosing of NPC-01

Results posted on

2025-06-17

Participant Flow

Thirty healthy female are screened for this study. Appropriate subjects who satisfy inclusion criteria were enrolled for this study.

Participant milestones

Participant milestones
Measure
NPC-01
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Overall Study
STARTED
12
Overall Study
COMPLETED
12
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Pharmacokinetics of NPC-01 After Single Oral Administration in Healthy Female Volunteers

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
NPC-01
n=12 Participants
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Age, Continuous
27.3 years
STANDARD_DEVIATION 5.0 • n=5 Participants
Sex/Gender, Customized
Female
12 participants
n=5 Participants
Height
158.98 cm
STANDARD_DEVIATION 6.31 • n=5 Participants
Body weight
54.46 kg
STANDARD_DEVIATION 9.70 • n=5 Participants

PRIMARY outcome

Timeframe: 0, 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 24.0 hours after single dosing of NPC-01

Multiple blood samples will obtains at pretreatment(0 hour), 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0 and 24.0 hours after dosing of NPC-01(1mg norethisterone and 0.02mg ethinyl estradiol) and determination of area under the plasma concentration versus time curve (AUC) of norethisterone that are active substances of NPC-01.

Outcome measures

Outcome measures
Measure
NPC-01
n=12 Participants
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Area Under the Plasma Concentration Versus Time Curve (AUC) on Norethisterone of NPC-01
69.183 ng・hr/mL
Standard Deviation 36.316

PRIMARY outcome

Timeframe: 0, 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 24.0 hours after single dosing of NPC-01

Multiple blood samples will obtains at pretreatment(0 hour), 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0 and 24.0 hours after dosing of NPC-01(1mg norethisterone and 0.02mg ethinyl estradiol) and determination of area under the plasma concentration versus time curve (AUC) of ethinyl estradiol that are active substances of NPC-01.

Outcome measures

Outcome measures
Measure
NPC-01
n=12 Participants
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Area Under the Plasma Concentration Versus Time Curve (AUC) on Ethinyl Estradiol of NPC-01
368.123 pg・hr/mL
Standard Deviation 170.882

PRIMARY outcome

Timeframe: 0, 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 24.0 hours after single dosing of NPC-01

Multiple blood samples will obtains at pretreatment(0 hour), 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0 and 24.0 hours after dosing of NPC-01(1mg norethisterone and 0.02mg ethinyl estradiol) and determination of peak plasma concentration (Cmax) of norethisterone that are active substances of NPC-01.

Outcome measures

Outcome measures
Measure
NPC-01
n=12 Participants
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Peak Plasma Concentration (Cmax) on Norethisterone of NPC-01
12.481 ng/mL
Standard Deviation 6.205

PRIMARY outcome

Timeframe: 0, 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 24.0 hours after single dosing of NPC-01

Multiple blood samples will obtains at pretreatment(0 hour), 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0 and 24.0 hours after dosing of NPC-01(1mg norethisterone and 0.02mg ethinyl estradiol) and determination of peak plasma concentration (Cmax) of ethinyl estradiol that are active substances of NPC-01.

Outcome measures

Outcome measures
Measure
NPC-01
n=12 Participants
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Peak Plasma Concentration (Cmax) on Ethinyl Estradiol of NPC-01
55.783 pg/mL
Standard Deviation 17.201

PRIMARY outcome

Timeframe: 0, 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 24.0 hours after single dosing of NPC-01

Multiple blood samples will obtains at pretreatment(0 hour), 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0 and 24.0 hours after dosing of NPC-01(1mg norethisterone and 0.02mg ethinyl estradiol) and determination of time to peak plasma concentration (Tmax) of norethisterone that are active substances of NPC-01.

Outcome measures

Outcome measures
Measure
NPC-01
n=12 Participants
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Time to Peak Plasma Concentration (Tmax) on Norethisterone of NPC-01
1.81 hours
Standard Deviation 0.79

PRIMARY outcome

Timeframe: 0, 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 24.0 hours after single dosing of NPC-01

Multiple blood samples will obtains at pretreatment(0 hour), 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0 and 24.0 hours after dosing of NPC-01(1mg norethisterone and 0.02mg ethinyl estradiol) and determination of time to peak plasma concentration (Tmax) of ethinyl estradiol that are active substances of NPC-01.

Outcome measures

Outcome measures
Measure
NPC-01
n=12 Participants
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Time to Peak Plasma Concentration (Tmax) on Ethinyl Estradiol of NPC-01
1.50 hours
Standard Deviation 0.43

PRIMARY outcome

Timeframe: 0, 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 24.0 hours after single dosing of NPC-01

Multiple blood samples will obtains at pretreatment(0 hour), 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0 and 24.0 hours after dosing of NPC-01(1mg norethisterone and 0.02mg ethinyl estradiol) and determination of plasma Half life (t1/2) of norethisterone that are active substances of NPC-01.

Outcome measures

Outcome measures
Measure
NPC-01
n=12 Participants
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Plasma Half Life (t1/2) on Norethisterone of NPC-01
7.357 hours
Standard Deviation 1.863

PRIMARY outcome

Timeframe: 0, 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 24.0 hours after single dosing of NPC-01

Multiple blood samples will obtains at pretreatment(0 hour), 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0 and 24.0 hours after dosing of NPC-01(1mg norethisterone and 0.02mg ethinyl estradiol) and determination of plasma Half life (t1/2) of ethinyl estradiol that are active substances of NPC-01.

Outcome measures

Outcome measures
Measure
NPC-01
n=12 Participants
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Plasma Half Life (t1/2) on Ethinyl Estradiol of NPC-01
5.499 hours
Standard Deviation 2.207

PRIMARY outcome

Timeframe: 0, 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 24.0 hours after single dosing of NPC-01

Multiple blood samples will obtains at pretreatment(0 hour), 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0 and 24.0 hours after dosing of NPC-01(1mg norethisterone and 0.02mg ethinyl estradiol) and determination of mean residence time (MRT) of norethisterone that are active substances of NPC-01.

Outcome measures

Outcome measures
Measure
NPC-01
n=12 Participants
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Mean Residence Time (MRT) on Norethisterone of NPC-01
6.340 hours
Standard Deviation 0.459

PRIMARY outcome

Timeframe: 0, 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 24.0 hours after single dosing of NPC-01

Multiple blood samples will obtains at pretreatment(0 hour), 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0 and 24.0 hours after dosing of NPC-01(1mg norethisterone and 0.02mg ethinyl estradiol) and determination of mean residence time (MRT) of ethinyl estradiol that are active substances of NPC-01.

Outcome measures

Outcome measures
Measure
NPC-01
n=12 Participants
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Mean Residence Time (MRT) on Ethinyl Estradiol of NPC-01
5.161 hours
Standard Deviation 1.504

PRIMARY outcome

Timeframe: 0, 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 24.0 hours after single dosing of NPC-01

Multiple blood samples will obtains at pretreatment(0 hour), 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0 and 24.0 hours after dosing of NPC-01(1mg norethisterone and 0.02mg ethinyl estradiol) and determination of elimination rate constant (kel) of norethisterone that are active substances of NPC-01.

Outcome measures

Outcome measures
Measure
NPC-01
n=12 Participants
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Elimination Rate Constant (Kel) on Norethisterone of NPC-01
0.101 hr^-1
Standard Deviation 0.029

PRIMARY outcome

Timeframe: 0, 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 24.0 hours after single dosing of NPC-01

Multiple blood samples will obtains at pretreatment(0 hour), 0.5, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0 and 24.0 hours after dosing of NPC-01(1mg norethisterone and 0.02mg ethinyl estradiol) and determination of elimination rate constant (kel) of ethinyl estradiol that are active substances of NPC-01.

Outcome measures

Outcome measures
Measure
NPC-01
n=12 Participants
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Elimination Rate Constant (Kel) on Ethinyl Estradiol of NPC-01
0.141 hr^-1
Standard Deviation 0.043

Adverse Events

NPC-01

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
NPC-01
n=12 participants at risk
Single oral administration of NPC-01 NPC-01: NPC-01, contains 1mg norethisterone and 0.02mg ethinyl estradiol will be administered orally under the fasting condition
Nervous system disorders
Headache
8.3%
1/12 • Number of events 1 • From initiation of study drug administration to follow up visit (day 7±1 day)
Reproductive system and breast disorders
Metrorrhagia
16.7%
2/12 • Number of events 2 • From initiation of study drug administration to follow up visit (day 7±1 day)
Investigations
Blood iron decreased
8.3%
1/12 • Number of events 1 • From initiation of study drug administration to follow up visit (day 7±1 day)
Investigations
White blood cell count decreased
8.3%
1/12 • Number of events 1 • From initiation of study drug administration to follow up visit (day 7±1 day)

Additional Information

Department director of clinical development department 1

Nobelpharma

Phone: +81-3-5651-1177

Results disclosure agreements

  • Principal investigator is a sponsor employee There is an agreement between the sponsor and PI that no restricts the PI's right but need to discuss the timing of publish date of trial results after the trial is completed.
  • Publication restrictions are in place

Restriction type: OTHER