New hope for women with vestibulodynia: cream and pill combo under study
NCT ID NCT03844412
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested two treatments for vestibulodynia, a chronic pain condition affecting the vulvar area. 209 women received either a lidocaine/estradiol cream, the antidepressant nortriptyline, both, or a placebo. The goal was to see which approach best reduces pain and improves daily life.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- lidocaine/estradiol cream and nortriptyline
- What this could lead to
- If successful, this could point toward more effective pain management options for women with vestibulodynia, improving their quality of life.
- What could go wrong
- This is a Phase 2 trial, so results are still early. The treatments may not work better than placebo, and side effects like skin irritation or drowsiness are possible.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
-
209 people
The number who actually took part.
- Started
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Nov 2019
- Finished
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May 2024
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 50 years
- Sex
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Female participants only
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria 1. Female 2. Age 18-50 years 3. English-literate 4. Willingness to provide informed consent 5. Meeting criteria for diagnosis of VBD based on: 1. self-report of 3 continuous months of insertional (entryway) dyspareunia, and/or pain to touch/tampon insertion 2. pain score of ≥ 3 on the tampon insertion test Exclusion Criteria 1. Use of daily topical lidocaine, or estradiol, or lidocaine/estradiol to the vulvar vestibule within the past three months 2. Use of nortriptyline or other TCA medications within the past three months 3. Use of pregabalin or gabapentin within the past three months 4. Presence of active dermatologic vulvar disease or vaginal infection 5. Untreated atrophic vaginitis (participants may undergo treatment and re-evaluation for enrollment if the condition is resolved) 6. Previous vestibulectomy 7. Pregnant or planning on becoming pregnant during the study period. Within the first six months of the postpartum period. Currently breastfeeding/lactating, or within three months of discontinuing breastfeeding/lactation. 8. Active incarceration 9. Cancer within the past year. 10. Chemotherapy and/or radiation treatment within the past year. 11. Unstable medical condition (e.g., renal impairment, significant hematological disease, cardiovascular disease, hepatic insufficiency, neurological disorder, autoimmune disease, or respiratory illness) 12. Clear inflammatory states (e.g., morbid obesity) 13. Use of immunosuppressant medications 14. History of intolerance to nortriptyline, topical lidocaine, or topical estradiol 15. Contraindications to use of nortriptyline: current use, or use within the past 3 months, of MAOIs, SSRIs, SNRIs, NDRIs; recent (within the past year) myocardial infarction, active psychotic or suicidal thoughts, narrow angle closure glaucoma 16. Contraindications to the use of lidocaine or local anesthetics 17. Contraindications to the use of topical estrogen therapy 18. Post-menopausal, defined as no menses for 12 consecutive months or surgical removal of both ovaries. (Hysterectomy is not an exclusion) 19. Have not had Botox of the pelvic floor muscles in the last 12 months, or pelvic nerve blocks in the last three months. 20. Are not currently enrolled or planning to enroll in another clinical trial during the course of this trial. 21. Are not currently receiving pelvic physical therapy
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
University of California, Los Angeles
Los Angeles, California, 90095, United States
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University of North Carolina at Chapel Hill
Chapel Hill, North Carolina, 27278, United States
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