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Oestrogel® (estradiol 0.06% w/w) efficacy

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Oestrogel® (estradiol 0.06% w/w) efficacy

Oestrogel is a hormone replacement therapy (HRT) indicated for oestrogen deficiency symptoms in postmenopausal women and prevention of osteoporosis in postmenopausal women at high risk of future fractures who are intolerant of, or contraindicated for, other medicinal products approved for the prevention of osteoporosis.2

The experience treating women older than 65 years is limited.2

Oestrogel is proven to reduce hot flushes3

Oestrogel significantly reduces the mean daily frequency of moderate-to-severe hot flushes at Week 12 compared 
to placebo (p<0.05).2

Study design (Archer 2003)3
 A 12-week, multicentre, double-blind, randomised, placebo-controlled study of the effects of Oestrogel in 221 postmenopausal women to assess the effects of a percutaneous 17B-estradiol gel on vasomotor symptoms (VMS) compared to placebo.

 Inclusion criteria3
 Participants were assigned to receive either 1.25g or 2.5g of percutaneous 17β-estradiol gel or placebo, applied once daily over a 12-week period to evaluate efficacy and tolerability.

 Primary endpoint3
 The mean change from baseline to Week 12 in the daily frequency of moderate-to-severe hot flushes.

 Secondary endpoints3
 Frequency and severity of all VMS and vaginal maturation index.

In Week 12, the mean percent decrease from baseline in the frequency of moderate-to-severe hot flushes was 82% estradiol gel 2.5g and 57% with placebo gel3

oestrogel_efficacy_graph_1_647086b40a.png
The mean number of moderate-to-severe hot flushes at 12 weeks was 2.0 in the 2.5g group (n=73), 2.8 in the 1.25g group (n=75) and 5.2 in the placebo group (n=73).3

At Week 12, Oestrogel had a significant (p=<0.05) reduction of hot flush severity when compared to placebo3

oestrogel_efficacy_graph_2_b7e7524706.png
The mean change from baseline severity of moderate-to-severe hot flushes at 12 weeks was -1.0 (43% decrease) in the 2.5g group (n=71).3

Safety data3

Adverse events (>10%) reported over a 12-week period
Adverse eventPlacebo (n=73)0.75mg Oestrogel (n=75)1.5mg Oestrogel (n=73)
Headache131314
Nausea349
Breast pain788
Infection5125
Pain854
Vaginitis381

Adverse event

Headache
Placebo (n=73)13
0.75mg Oestrogel (n=75)13
1.5mg Oestrogel (n=73)14
Nausea
Placebo (n=73)3
0.75mg Oestrogel (n=75)4
1.5mg Oestrogel (n=73)9
Breast pain
Placebo (n=73)7
0.75mg Oestrogel (n=75)8
1.5mg Oestrogel (n=73)8
Infection
Placebo (n=73)5
0.75mg Oestrogel (n=75)12
1.5mg Oestrogel (n=73)5
Pain
Placebo (n=73)8
0.75mg Oestrogel (n=75)5
1.5mg Oestrogel (n=73)4
Vaginitis
Placebo (n=73)3
0.75mg Oestrogel (n=75)8
1.5mg Oestrogel (n=73)1

The most common adverse events were headache (18.1%), breast pain (10.4%), infection (10.0%), pain (7.7%), nausea (7.2%), rash (5.4%) and vaginitis (5.4%).3

Oestrogel was effective and generally well tolerated for alleviating moderate-to-severe hot flushes in postmenopausal women.3

Preference satisfaction data for Oestrogel patients4

In a survey (organised and funded by Besins Healthcare UK) we asked Oestrogel patients (N=156) how satisfied they were with the following features of the Oestrogel pump-pack:4
95%
were very/fairly satisfied with ease of use
92%
were very/fairly satisfied with how well Oestrogel fits into their daily life
84%
were very/fairly satisfied with how effective Oestrogel is in reducing their menopause symptoms

Abbreviations

HRT, hormone replacement therapy; VMS, vasomotor symptoms.

References

  1. Data on file. REF-OES-00473 July 2025
  2. Oestrogel (estradiol) Pump-Pack 750 micrograms/actuation gel Summary of Product Characteristics
    https://www.medicines.org.uk/emc/product/353/smpc.Accessed June 2026
  3. Archer DF, et al. Menopause 2003;10(6):516–521.
  4. Data on file. REF-OES-00454 May 2025
June 2026 | MAT-PROMO-OES-0309

Adverse event reporting

Adverse events should be reported. Reporting forms and information can be found at https://yellowcard.mhra.gov.uk/or search for MHRA Yellow Card in the Google Play or Apple App Store. Adverse events should also be reported to Besins Healthcare (UK) Ltd Drug Safety on 0203 862 0920 or Email: drugsafety@besins-healthcare.com

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