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MenopauseEarly Phase 1NCT05645393

Effect of Estradiol Topical Products

A Early Phase 1 study testing topical estrogen product in people with Menopause, run by University of Maryland, Baltimore at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of the present study is to determine if two products can deliver bioequivalent amounts of estrogen (estradiol, estriol, and estrone). Read more about this study

Who is it for?
Ages 45 to 65 years, women onlyHealthy volunteers can take part
Conditions the study is for
Menopause
What is being tested?
topical estrogen product
Could I receive a placebo?
No, everyone receives an active treatment
How many people
4 participants
Where
1 siteUnited States
Study dates
5 Jun 2024to 30 Mar 2025
Phase
Early Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 45 to 65 years
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Postmenopausal women, who are of any ethnic background, between the age of 45 to 65 years old
  • Provide written informed consent before initiation of any of the study procedures
  • Able to adhere to the study restrictions and study schedule
  • Volunteer has mid thighs of at least 42 cm (16.5 in) in circumference to accommodate the products to be tested at an area of 400 cm2 per thigh
  • Volunteer has legs that measure ≥46 cm (18.1 in) in length from the iliac crest to the top of the patella or large enough to accommodate the products to be tested at an area of 400 cm2 per thigh with the subject being comfortable with the template placement
  • Volunteer deemed to be healthy as judged by the Medically Accountable Investigator (MAI) and determined by medical history, physical examination, and medication history
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  • Negative urine drug screening test (cannabinoids, amphetamines, barbiturates, benzodiazepine, cocaine, methadone, opiates, PCP)
  • Have normal screening laboratories for white blood cells (WBC), hemoglobin (Hgb), platelets, sodium, potassium, chloride, bicarbonate, blood urea nitrogen (BUN), creatinine, alanine transaminase (ALT), and aspartate aminotransferase (AST)
  • Have normal screening laboratories for urine protein and urine glucose
  • Naturally postmenopausal (absence of periods for ≥ 1 year or 6 weeks postsurgical bilateral oophorectomy with or without hysterectomy (menopause induced by removal of ovaries)
  • Agree not to participate in another clinical trial/study or to participate in an investigational drug study for at least one month after the last procedure day
  • Agrees not to donate blood to a blood bank throughout participation in the study and for at least three months after last procedure day
  • Have a normal ECG; must not have the following to be acceptable: pathologic Q wave abnormalities, significant ST-T wave changes, left ventricular hypertrophy, right bundle branch block, left bundle branch block. (sinus rhythm is between 55-100 beats per minute)
  • Have normal vital signs:
  • Temperature 35-37.9°C (95-100.3°F)
  • Systolic blood pressure 90-165 mmHg
  • Diastolic blood pressure 60-100 mmHg
  • Heart rate 55-100 beats per minute
  • Respiration rate 12-20 breaths per minute

Who cannot join

  • Smokers/tobacco users (current use or use over the previous 2 months of nicotine-containing substances, including tobacco products (e.g., cigarettes, cigars, chewing tobacco, snuff, gum, patches, or electronic cigarettes)
  • Participation in any ongoing clinical drug trial/study
  • Hereditary skin disorders or any skin inflammatory conditions as reported by the volunteer or evident to the MAI
  • History of significant dermatologic cancers (e.g., melanoma, squamous cell carcinoma) except basal cell carcinomas that were superficial and did not involve the investigative sites
  • History as either reported by the volunteer or evident to the investigator of infectious disease or skin infection or of chronic skin disease (e.g., psoriasis, atopic dermatitis)
  • Use of medications/alternative treatments/natural products for menopausal symptoms within the last 30 days or during the study
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  • Use of some chronic prescription medications during the period 0 to 30 days; or over-the-counter medications (e.g. antihistamines, topical corticosteroids, creams, gels, or ointments on your legs) and short term (<30 days) prescription medications during the period 0-3 days before a procedure day vitamin and herbal supplements not included). Certain types of medications may not exclude volunteers from this study, for example; thyroid medications, allergy medication that is not a steroid, non-steroidal anti-inflammatory drugs (e.g., ibuprofen or naproxen), and lipid/cholesterol lowering drugs.
  • Active positive Hepatitis B, C and/or HIV serologies
  • Positive urine drug screening test
  • Use of estrogen-containing implants, topical, or oral products
  • Donation or loss of greater than one pint of blood within 60 days of entry to the study
  • Any prior allergies to estradiol and its products or other ingredients in the applied gel or cream
  • Received an experimental agent (vaccine, drug, biologic, device, blood product or medication) within one month before enrollment in this study or expects to receive an experimental agent during the study
  • Any condition that would, in the opinion of the Medically Accountable Investigator (MAI), place the volunteer at an unacceptable risk of injury or render the volunteer unable to meet the requirements of the protocol
  • History of diabetes
  • Breast cancer or history of breast cancer
  • Undiagnosed abnormal genital bleeding
  • Estrogen-dependent neoplasia (tumor)
  • Active arterial thromboembolic disease (example, stroke or heart attack), or a history of these conditions
  • Active DVT (blood clots in deep vein such as lower leg, thigh, pelvis or can occur in arm), PE (blood clot in blood vessel; often leg), or history of these conditions
  • Hepatic (liver) impairment or disease
  • A history of Protein C, protein S, or antithrombin deficiency, or other known thrombophilic disorders (tendency to form blood clots)
  • At application site, volunteer has an obvious difference in skin color between thighs, presence of a skin condition, excessive hair, sunburn, raised moles and scars, open sores, scar tissue, tattoo, or coloration that would interfere with placement of products, skin assessment, or reactions to estradiol
  • BMI ≥30 kg/m2

Trial locations and contacts

1 site in 1 country.

United States1 site
  • General Clinical Research Center (GCRC) at the University of Maryland Medical Center

    Baltimore, Maryland, 21201

Other trials in United States

About this study

Official title: Confirming Quality Performance of Extemporaneously Compounded Estrogen Hormone Products

The aim of the present study is to determine if two products can deliver bioequivalent amounts of estrogen (estradiol, estriol, and estrone).

Conditions
Menopause
Being tested
topical estrogen product

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • topical estrogen productDrug

    estrogen topical gel or cream

Study groups in NCT05645393
Study groupRoleWhat they receive
EstroGel® 0.06%Active comparatorEstroGel® 0.06% (1.25 g of gel)
Receives: Drug: topical estrogen product
Biest creamActive comparatorBiest cream (equivalent dose to EstroGel®)
Receives: Drug: topical estrogen product

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. PK

    serum concentrations

    Measured: -1 through 12 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Dec 2022
  2. Study start5 Jun 2024
  3. Primary completion30 Mar 2025
  4. Study completion30 Mar 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Early Phase 1
Primary purpose
Basic science
Allocation
Non-randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
4 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05645393
Sponsor's protocol ID
HP-00100310
Status last verified
May 2025
First submitted
1 Dec 2022
Last updated
20 May 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing topical estrogen product in people with Menopause, run by University of Maryland, Baltimore at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 19 inclusion and 24 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 May 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

PK (time frame: -1 through 12 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 May 2025.

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