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DRSP dose 1

Phase 3

Postmenopause | Small molecule | Other |Bayer AG|Last Updated: May 6, 2015

Target and mechanism

ModalitySmall molecule

Also known as DRSP (ZK 30595) dose 1 (SH T04984F)

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials1
Total Enrollment662

FDA Designations

No designations recorded

Clinical trial landscape

DRSP dose 1 · 3 trials · 4 indications

Phase 3 2Phase 2 1
NCT00522873Endometrial Safety StudyPostmenopause
COMPLETED662 Analytics
NCT00446199Low-dose Hormone Therapy for Relief of Vasomotor SymptomsVasomotor Symptoms
COMPLETED735 Analytics
PHASE3COMPLETED
Endometrial Safety Study
PostmenopauseUnlock trial analytics
PHASE3COMPLETED
Low-dose Hormone Therapy for Relief of Vasomotor Symptoms
Vasomotor SymptomsUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants in the DRSP/E2 Group With an Assessment of Endometrial Hyperplasia or Worse at End of Study (EoS) (1 Year of Treatment)
Up to one year

The number of women who had a biopsy classified as 'hyperplasia or worse' at any time during the study. According to the protocol this endpoint was defined as primary for the DRSP/E2 group only.

Change From Baseline to Week 12 in Weekly Frequency of Moderate to Severe Hot Flushes (Median Value)
Baseline until 12 weeks of treatment

Subjects record daily on the diary cards the frequency and severity of hot flushes during the treatment period as none, mild, moderate or severe. Absolute change calculated as week 12 number of moderate to severe hot flushes minus baseline number.

Change From Baseline to Week 4 in Weekly Frequency of Moderate to Severe Hot Flushes (Median Value)
Baseline until 4 weeks of treatment

Subjects record daily on the diary cards the frequency and severity of hot flushes during the treatment period as none, mild, moderate or severe. Absolute change calculated as week 4 number of moderate to severe hot flushes minus baseline number.

Change From Baseline to Week 12 in Weekly Mean Daily Severity of Moderate to Severe Hot Flushes (Median Value)
Baseline until 12 weeks of treatment

Subjects record daily on the diary cards the frequency and severity of hot flushes during the treatment period as none, mild, moderate or severe. Daily score is calculated as \[(2 x number of moderate hot flushes) + (3 x number of severe hot flushes)\] / (total number of moderate to severe hot flushes on that day). Range = 0 (lowest severity) to 3 (highest severity). Absolute change calculated as week 12 severity of moderate to severe hot flushes minus baseline severity.

Change From Baseline to Week 4 in Weekly Mean Daily Severity of Moderate to Severe Hot Flushes (Median Value)
Baseline until 4 weeks of treatment

Subjects record daily on the diary cards the frequency and severity of hot flushes during the treatment period as none, mild, moderate or severe. Daily score is calculated as \[(2 x number of moderate hot flushes) + (3 x number of severe hot flushes)\] / (total number of moderate to severe hot flushes on that day). Range = 0 (lowest severity) to 3 (highest severity). Absolute change calculated as week 4 severity of moderate to severe hot flushes minus baseline severity.

Number of Participants With Intracyclic Bleeding at Cycle 6
Up to Cycle 6 (168 days) with 28 days per cycle

Intracyclic bleedings were defined as bleedings while a participant takes active tablets.

Secondary Endpoints

Number of Participants With Amenorrhea During Month 1 to 3 of Treatment
Month 1 to Month 3
Number of Participants With Amenorrhea During Month 10 to 12 of Treatment
Month 10 to Month 12
Change From Baseline to Week 12 in Vaginal pH
Baseline until 12 weeks of treatment
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
0.25mg DRSP / 0.5mg E2 (BAY86-4891)EXPERIMENTALOne capsule \[0.25mg drospirenone/0.5mg 17β-estradiol (DRSP/E2)\] per day taken orally for 13 cycles (28 days per cycle).
0.5mg NETA / 1.0mg E2 (Activella)ACTIVE_COMPARATOROne capsule \[0.5mg norethisterone acetate/1.0mg 17β-estradiol (NETA/E2)\] per day taken orally for 13 cycles (28 days per cycle).
0.5mg DRSP / 0.5mg E2 (BAY86-4891)EXPERIMENTALOne tablet \[0.5mg drospirenone/0.5mg 17β-estradiol (DRSP/E2)\] per day taken orally for 3 cycles (28 days per cycle).
Estradiol (E2 0.3mg)EXPERIMENTALOne tablet \[17β-estradiol (E2 0.3mg)\] per day taken orally for 3 cycles (28 days per cycle).
PlaceboPLACEBO_COMPARATORMatching placebo tablet per day taken orally for 3 cycles (28 days per cycle).
DRSP 3 mg/EE 20 µg (13 cycles)EXPERIMENTAL1 tablet per day Drospirenone (DRSP) 3 mg/Ethinylestradiol (EE) 20 µg for 24 days and 1 tablet per day placebo for 4 days in each 28-day cycle; treatment duration 52 weeks (13 cycles)
DRSP 3 mg/EE 30 µg (6 cycles)EXPERIMENTAL1 tablet per day Drospirenone 3 mg/Ethinylestradiol 30 µg for 24 days and 1 tablet per day placebo for 4 days in each 28-day cycle; treatment duration 24 weeks (6 cycles)

Interventions

NameTypeDescription
0.25mg DRSP / 0.5mg E2 (BAY86-4891)DRUGOne capsule \[0.25mg drospirenone/0.5mg 17β-estradiol (DRSP/E2)\] per day taken orally for 13 cycles (28 days per cycle).
0.5mg NETA / 1.0mg E2 (Activella)DRUGOne capsule \[0.5mg norethisterone acetate/1.0mg 17β-estradiol (NETA/E2)\] per day taken orally for 13 cycles (28 days per cycle).
0.5mg DRSP / 0.5mg E2 (BAY86-4891)DRUGOne tablet \[0.5mg drospirenone/0.5mg 17β-estradiol (DRSP/E2)\] per day taken orally for 3 cycles (28 days per cycle).
Estradiol (E2 0.3mg)DRUGOne tablet \[17β-estradiol (E2 0.3mg)\] per day taken orally for 3 cycles (28 days per cycle).
PlaceboDRUGMatching placebo tablet per day taken orally for 3 cycles (28 days per cycle).
DRSP 3 mg/EE 20 µg (13 cycles)DRUG1 tablet per day Drospirenone (DRSP) 3 mg/Ethinylestradiol (EE) 20 µg for 24 days and 1 tablet per day placebo for 4 days in each 28-day cycle; treatment duration 52 weeks (13 cycles)
DRSP 3 mg/EE 30 µg (6 cycles)DRUG1 tablet per day Drospirenone 3 mg/Ethinylestradiol 30 µg for 24 days and 1 tablet per day placebo for 4 days in each 28-day cycle; treatment duration 24 weeks (6 cycles)
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Eligibility Criteria

Age Range40 Years to 65 Years
SexFEMALE
Healthy VolunteersNo
Study Sites59

Inclusion Criteria: * Postmenopausal women between 40 and 65 years of age with hormone therapy indication (symptoms and need for treatment) * Non-hysterectomized women. Exclusion Criteria: * Usual exclusion criteria for hormone therapy apply.

Countries:United StatesArgentinaAustriaBrazilDenmarkItalyMexicoRussiaJapan
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Frequently asked questions about DRSP dose 1

What is DRSP/E2 used for?

DRSP/E2 is a combination of drospirenone and estradiol being developed for dysmenorrhea, postmenopause, and vasomotor symptoms. It is a small molecule therapy studied in postmenopausal women and those with menstrual pain. The drug is currently in Phase 3 clinical development and is not yet approved.

What does DRSP/E2 target?

DRSP/E2 contains drospirenone, a progestin, and estradiol, an estrogen. It works by providing hormone replacement to alleviate symptoms associated with menopause and menstrual disorders. The combination targets hormone receptors to reduce hot flashes and other vasomotor symptoms.

Who makes DRSP/E2?

DRSP/E2 is developed by Bayer AG, a multinational pharmaceutical company. Bayer is conducting clinical trials to evaluate the safety and efficacy of this hormone therapy for conditions like vasomotor symptoms and dysmenorrhea.

What phase is DRSP/E2 in?

DRSP/E2 is in Phase 3 clinical development. It has completed Phase 3 trials for vasomotor symptoms and postmenopause, as well as a Phase 2 trial for dysmenorrhea. The drug is investigational and has not received FDA approval.

What clinical trials is DRSP/E2 in?

DRSP/E2 has completed several trials, including NCT00446199 for vasomotor symptoms with 735 participants, NCT00461305 for dysmenorrhea with 420 participants, and NCT00522873 for endometrial safety in postmenopause with 662 participants. All trials are completed.

Is DRSP/E2 the same as other hormone therapies?

DRSP/E2 is a specific combination of drospirenone and estradiol. It is not the same as other hormone therapies that use different progestins or estrogens. The drug is being studied for its unique formulation and potential benefits in menopausal and menstrual conditions.