Trial Outcomes & Findings for Study of DARE-HRT1 Over 12 Weeks in Healthy PostMenopausal Women (NCT NCT05367973)

NCT ID: NCT05367973

Last Updated: 2024-10-31

Results Overview

To assess the safety and tolerability of DARE-HRT1 Intravaginal rings

Recruitment status

COMPLETED

Study phase

PHASE1/PHASE2

Target enrollment

21 participants

Primary outcome timeframe

12 weeks

Results posted on

2024-10-31

Participant Flow

Participant milestones

Participant milestones
Measure
IVR: Estradiol 80 ug/Day + Progesterone 4mg/Day
12-week IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day
12-week IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
Overall Study
STARTED
11
10
Overall Study
COMPLETED
11
8
Overall Study
NOT COMPLETED
0
2

Reasons for withdrawal

Reasons for withdrawal
Measure
IVR: Estradiol 80 ug/Day + Progesterone 4mg/Day
12-week IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day
12-week IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
Overall Study
Adverse Event
0
2

Baseline Characteristics

Study of DARE-HRT1 Over 12 Weeks in Healthy PostMenopausal Women

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
IVR: Estradiol 80 ug/Day + Progesterone 4mg/Day
n=11 Participants
12-week IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day
n=10 Participants
12-week IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
Total
n=21 Participants
Total of all reporting groups
Age, Continuous
58.6 years
STANDARD_DEVIATION 3.41 • n=5 Participants
59.0 years
STANDARD_DEVIATION 4.74 • n=7 Participants
58.8 years
STANDARD_DEVIATION 4.00 • n=5 Participants
Sex: Female, Male
Female
11 Participants
n=5 Participants
10 Participants
n=7 Participants
21 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
11 Participants
n=5 Participants
10 Participants
n=7 Participants
21 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
White
11 Participants
n=5 Participants
9 Participants
n=7 Participants
20 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Region of Enrollment
Australia
11 participants
n=5 Participants
10 participants
n=7 Participants
21 participants
n=5 Participants
Body Mass Index
25.9 kg/m^2
STANDARD_DEVIATION 3.53 • n=5 Participants
28.9 kg/m^2
STANDARD_DEVIATION 4.62 • n=7 Participants
27.3 kg/m^2
STANDARD_DEVIATION 4.26 • n=5 Participants

PRIMARY outcome

Timeframe: 12 weeks

To assess the safety and tolerability of DARE-HRT1 Intravaginal rings

Outcome measures

Outcome measures
Measure
IVR: Estradiol 80 ug/Day + Progesterone 4mg/Day
n=11 Participants
12-week IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day
n=10 Participants
12-week IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 80 ug/Day + Progesterone 4 mg/Day Cycle 3
28 day IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day Cycle 1
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 2
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 3
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
Number of Participants With Treatment Emergent Adverse Events
11 Participants
10 Participants

PRIMARY outcome

Timeframe: 12 weeks (3- 28 day cycles)

To describe the Pharmacokinetic parameters of dose combinations (Estradiol 80 ug/progesterone 4/mg day and Estradiol 160 ug/progesterone 8/mg day)

Outcome measures

Outcome measures
Measure
IVR: Estradiol 80 ug/Day + Progesterone 4mg/Day
n=11 Participants
12-week IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day
n=11 Participants
12-week IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 80 ug/Day + Progesterone 4 mg/Day Cycle 3
n=10 Participants
28 day IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day Cycle 1
n=10 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 2
n=9 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 3
n=8 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
Determination of Maximum Plasma Concentration of Progesterone (Cmax) Per Cycle
5.16 ng/mL
Geometric Coefficient of Variation 43.83
2.40 ng/mL
Geometric Coefficient of Variation 36.8
2.71 ng/mL
Geometric Coefficient of Variation 30.95
8.45 ng/mL
Geometric Coefficient of Variation 37.75
3.46 ng/mL
Geometric Coefficient of Variation 15.73
3.38 ng/mL
Geometric Coefficient of Variation 10.01

PRIMARY outcome

Timeframe: 12 weeks (3- 28 day cycles)

To describe the Pharmacokinetic parameters of dose combinations (Estradiol 80 ug/progesterone 4/mg day and Estradiol 160 ug/progesterone 8/mg day)

Outcome measures

Outcome measures
Measure
IVR: Estradiol 80 ug/Day + Progesterone 4mg/Day
n=11 Participants
12-week IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day
n=11 Participants
12-week IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 80 ug/Day + Progesterone 4 mg/Day Cycle 3
n=10 Participants
28 day IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day Cycle 1
n=10 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 2
n=9 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 3
n=8 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
Determination of Time That Maximum Progesterone Plasma Concentration Was Observed (Tmax)
23.23 hours
Interval 7.85 to 24.2
24.08 hours
Interval 0.5 to 48.3
0.500 hours
Interval 0.05 to 23.03
23.25 hours
Interval 23.0 to 24.82
23.67 hours
Interval 1.0 to 47.95
4.00 hours
Interval 0.48 to 48.17

PRIMARY outcome

Timeframe: 12 weeks (3- 28day cycles)

To describe the Pharmacokinetic parameters of dose combinations (Estradiol 80 ug/progesterone 4/mg day and Estradiol 160 ug/progesterone 8/mg day)

Outcome measures

Outcome measures
Measure
IVR: Estradiol 80 ug/Day + Progesterone 4mg/Day
n=11 Participants
12-week IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day
n=11 Participants
12-week IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 80 ug/Day + Progesterone 4 mg/Day Cycle 3
n=10 Participants
28 day IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day Cycle 1
n=9 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 2
n=8 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 3
n=7 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
Determination of Progesterone Steady-state Concentration (Css) Per Cycle
1.06 ng/mL
Geometric Coefficient of Variation 25.57
1.08 ng/mL
Geometric Coefficient of Variation 27.49
1.21 ng/mL
Geometric Coefficient of Variation 26.72
1.83 ng/mL
Geometric Coefficient of Variation 26.10
1.68 ng/mL
Geometric Coefficient of Variation 13.39
1.78 ng/mL
Geometric Coefficient of Variation 15.41

PRIMARY outcome

Timeframe: 12 weeks (3- 28 day cycles)

To describe the Pharmacokinetic parameters of dose combinations (Estradiol 80 ug/progesterone 4/mg day and Estradiol 160 ug/progesterone 8/mg day)

Outcome measures

Outcome measures
Measure
IVR: Estradiol 80 ug/Day + Progesterone 4mg/Day
n=11 Participants
12-week IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day
n=11 Participants
12-week IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 80 ug/Day + Progesterone 4 mg/Day Cycle 3
n=10 Participants
28 day IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day Cycle 1
n=10 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 2
n=9 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 3
n=8 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
Determination of Time That Maximum Estradiol Plasma Concentration Was Observed (Tmax)
24.20 hours
Interval 22.07 to 48.05
47.48 hours
Interval 23.28 to 167.08
47.26 hours
Interval 23.03 to 48.43
47.09 hours
Interval 23.07 to 48.85
47.95 hours
Interval 23.23 to 170.87
47.26 hours
Interval 23.07 to 48.23

PRIMARY outcome

Timeframe: 12 weeks (3- 28 day cycles)

To describe the Pharmacokinetic parameters of dose combinations (Estradiol 80 ug/progesterone 4/mg day and Estradiol 160 ug/progesterone 8/mg day)

Outcome measures

Outcome measures
Measure
IVR: Estradiol 80 ug/Day + Progesterone 4mg/Day
n=11 Participants
12-week IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day
n=11 Participants
12-week IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 80 ug/Day + Progesterone 4 mg/Day Cycle 3
n=10 Participants
28 day IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day Cycle 1
n=10 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 2
n=9 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 3
n=8 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
Determination of Maximum Plasma Concentration of Estradiol (Cmax) Per Cycle
68.29 pg/mL
Geometric Coefficient of Variation 27.29
41.67 pg/mL
Geometric Coefficient of Variation 35.91
44.56 pg/mL
Geometric Coefficient of Variation 21.00
107.76 pg/mL
Geometric Coefficient of Variation 34.17
66.89 pg/mL
Geometric Coefficient of Variation 31.66
71.06 pg/mL
Geometric Coefficient of Variation 34.48

PRIMARY outcome

Timeframe: 12 weeks (3- 28day cycles)

To describe the Pharmacokinetic parameters of dose combinations (Estradiol 80 ug/progesterone 4/mg day and Estradiol 160 ug/progesterone 8/mg day)

Outcome measures

Outcome measures
Measure
IVR: Estradiol 80 ug/Day + Progesterone 4mg/Day
n=11 Participants
12-week IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day
n=11 Participants
12-week IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 80 ug/Day + Progesterone 4 mg/Day Cycle 3
n=10 Participants
28 day IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day Cycle 1
n=10 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 2
n=9 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
IVR: Estradiol 160 ug/Day + Progesterone 8mg/Day Cycle 3
n=8 Participants
28 day IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
Determination of Estradiol Steady-state Concentration (Css) Per Cycle
21.87 pg/mL
Geometric Coefficient of Variation 36.92
22.55 pg/mL
Geometric Coefficient of Variation 22.83
21.79 pg/mL
Geometric Coefficient of Variation 20.15
37.28 pg/mL
Geometric Coefficient of Variation 22.17
36.43 pg/mL
Geometric Coefficient of Variation 24.00
37.52 pg/mL
Geometric Coefficient of Variation 27.68

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 weeks

To assess usability and participant tolerability of the DARE-HRT1 Intravaginal Ring comparing total questionnaire score from baseline to end of study with a decrease in score showing improvement.

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 weeks

To conduct a preliminary evaluation of the effect of the DARE-HRT1 intravaginal ring on Vulvarvaginal atrophy

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 weeks

To conduct a preliminary evaluation of the effect of the DARE-HRT1 intravaginal ring on Vulvarvaginal atrophy

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 weeks

To conduct a preliminary evaluation of the effect of the DARE-HRT1 intravaginal ring on Vasomotor Symptoms (VMS)

Outcome measures

Outcome data not reported

Adverse Events

IVR: Estradiol 80 ug/Day + Progesterone 4mg/Day

Serious events: 0 serious events
Other events: 11 other events
Deaths: 0 deaths

IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day

Serious events: 0 serious events
Other events: 10 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
IVR: Estradiol 80 ug/Day + Progesterone 4mg/Day
n=11 participants at risk
12-week IVR 80/4 IVR Dose 1: Estradiol 80 ug/day + progesterone 4 mg/day
IVR Estradiol 160 ug/Day + Progesterone 8 mg/Day
n=10 participants at risk
12-week IVR 160/8 IVR Dose 2: Estradiol 160 ug/day + progesterone 8 mg/day
Reproductive system and breast disorders
Vaginal hemorrhage
18.2%
2/11 • Number of events 2 • 12 weeks
40.0%
4/10 • Number of events 6 • 12 weeks
Reproductive system and breast disorders
Intermenstrual bleeding
0.00%
0/11 • 12 weeks
10.0%
1/10 • Number of events 2 • 12 weeks
Reproductive system and breast disorders
Postmenopausal hemorrhage
0.00%
0/11 • 12 weeks
10.0%
1/10 • Number of events 1 • 12 weeks
Reproductive system and breast disorders
Nipple pain
18.2%
2/11 • Number of events 2 • 12 weeks
30.0%
3/10 • Number of events 3 • 12 weeks
Reproductive system and breast disorders
Vaginal discharge
18.2%
2/11 • Number of events 2 • 12 weeks
20.0%
2/10 • Number of events 4 • 12 weeks
Reproductive system and breast disorders
Breast pain
0.00%
0/11 • 12 weeks
20.0%
2/10 • Number of events 2 • 12 weeks
Reproductive system and breast disorders
Breast tenderness
0.00%
0/11 • 12 weeks
20.0%
2/10 • Number of events 2 • 12 weeks
Reproductive system and breast disorders
Vulvovaginal pruritus
18.2%
2/11 • Number of events 2 • 12 weeks
0.00%
0/10 • 12 weeks
Reproductive system and breast disorders
Breast discomfort
0.00%
0/11 • 12 weeks
10.0%
1/10 • Number of events 1 • 12 weeks
Reproductive system and breast disorders
Pelvic pain
9.1%
1/11 • Number of events 1 • 12 weeks
0.00%
0/10 • 12 weeks
Reproductive system and breast disorders
Vulvovaginal discomfort
9.1%
1/11 • Number of events 1 • 12 weeks
0.00%
0/10 • 12 weeks
Nervous system disorders
Headache
54.5%
6/11 • Number of events 9 • 12 weeks
50.0%
5/10 • Number of events 11 • 12 weeks
Nervous system disorders
Sensory distrubance
0.00%
0/11 • 12 weeks
20.0%
2/10 • Number of events 2 • 12 weeks
Infections and infestations
COVID-19
18.2%
2/11 • Number of events 6 • 12 weeks
20.0%
2/10 • Number of events 5 • 12 weeks
Infections and infestations
Vulvovaginal candidiasis
18.2%
2/11 • Number of events 2 • 12 weeks
10.0%
1/10 • Number of events 1 • 12 weeks
Infections and infestations
Nasopharyngitis
0.00%
0/11 • 12 weeks
10.0%
1/10 • Number of events 1 • 12 weeks
Infections and infestations
Oral herpes
0.00%
0/11 • 12 weeks
10.0%
1/10 • Number of events 1 • 12 weeks
Infections and infestations
Respiratory tract infection viral
0.00%
0/11 • 12 weeks
10.0%
1/10 • Number of events 1 • 12 weeks
Gastrointestinal disorders
Abdominal discomfort
0.00%
0/11 • 12 weeks
10.0%
1/10 • Number of events 1 • 12 weeks
Gastrointestinal disorders
Abdominal pain
18.2%
2/11 • Number of events 3 • 12 weeks
0.00%
0/10 • 12 weeks
Gastrointestinal disorders
Diarrhea
0.00%
0/11 • 12 weeks
10.0%
1/10 • Number of events 1 • 12 weeks
Gastrointestinal disorders
Nausea
0.00%
0/11 • 12 weeks
10.0%
1/10 • Number of events 1 • 12 weeks
Musculoskeletal and connective tissue disorders
Back pain
9.1%
1/11 • Number of events 1 • 12 weeks
30.0%
3/10 • Number of events 5 • 12 weeks
Psychiatric disorders
Depressed mood
0.00%
0/11 • 12 weeks
10.0%
1/10 • Number of events 1 • 12 weeks
Vascular disorders
Hot flush
0.00%
0/11 • 12 weeks
10.0%
1/10 • Number of events 1 • 12 weeks
Renal and urinary disorders
Urinary incontinence
0.00%
0/11 • 12 weeks
10.0%
1/10 • Number of events 1 • 12 weeks

Additional Information

Jessica Hatheway, VP Clinical Operations

Dare Bioscience, Inc.

Phone: 858-926-7655

Results disclosure agreements

  • Principal investigator is a sponsor employee PI are not allowed to publish without prior approval from Sponsor.
  • Publication restrictions are in place

Restriction type: OTHER