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Randomized Controlled Trial of Vaginal Cryotherapy for Pelvic Floor Myofascial Pain

Randomized Controlled Trial of Vaginal Cryotherapy for Pelvic Floor Myofascial Pain

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03885791
Enrollment
165
Registered
2019-03-22
Start date
2019-03-22
Completion date
2024-07-24
Last updated
2026-02-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Myofascial Pain, Pelvic Floor Myofascial Pain, Pelvic Pain

Brief summary

This is a placebo-controlled, randomized controlled trial to investigate the role of vaginal cryotherapy on pelvic floor myofascial pain in women. This study involves randomizing patients who are found to have pelvic floor myofascial pain on examination into one of two treatment groups: transvaginal cryotherapy or transvaginal application of a room-temperature tube. Patients will be followed up at two different time points in order to assess response to treatment. Follow-up times include immediately after application (Specific Aim #1) and two weeks following use of the intervention alone (Specific Aim #2). Patients will receive verbal and written instructions on using the intravaginal tubes by the research assistant who will not be blinded to treatment allocation. Patients will not be blinded to their treatment assignment but will not be given information on the alternative treatment. Patients will be referred to pelvic floor PT, which is considered the standard of care for treatment of pelvic floor myofascial pain at this time. As it typically takes 2-3 weeks to get in to see one of the pelvic floor PT providers at Wash U, follow up for this study will be completed prior to their attendance at pelvic floor PT. Patients will complete validated questionnaires assessing their pain, other pelvic floor symptoms, and acceptance of the intervention as a treatment option at the follow up time points.

Interventions

DEVICEvaginal cryotherapy

Both groups will be given the same instructions for use, which will include intravaginal placement of one tube for 10 minutes while resting in a supine position. A lubricant may be used for comfort with insertion. Patients will perform their first intervention in the office with a repeat examination within 10 minutes of completing therapy. Patients participating in Specific Aims #2 will perform the intervention once daily at home. Patients will be asked to complete a short diary for each session, which will include the time of day, duration of application, pain score prior to and after application, and presence of any pelvic floor disorder symptoms prior to and after application.

Sponsors

Washington University School of Medicine
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Adult (\>18yo) * Women * Patients found to have pelvic floor myofascial pain of at least 4/10 in severity at any of the four sites (right obturator internus, right levator ani, left levator ani, left obturator internus)

Exclusion criteria

* Age \<18 * Non-English speaking * Current diagnosis of dementia * Limited physical mobility that would prevent full participation in pelvic floor PT. * Prior use of vaginal cryotherapy * Chief complaint or known history of pelvic pain

Design outcomes

Primary

MeasureTime frameDescription
change in myofascial pain score10-15 minutes (Pre- to post-treatment)Primary outcome is change in pelvic floor myofascial pain scores at each site (bilateral OI and LA) as measured on a 0-10 visual pain rating scale where 0 indicates no pain on palpation and 10 indicates 'worst pain imaginable' on palpation.

Secondary

MeasureTime frameDescription
Pelvic Floor Distress Inventory-202 weeksShort form of the validated questionnaire to assess presence and degree of bother of common pelvic floor symptoms
Pelvic Floor Impact Questionnaire-72 weeksShort form of the validated questionnaire to assess impact of pelvic floor symptoms on daily activities
Prolapse and Incontinence Sexual Questionnaire2 weeksShort form of the validated questionnaire to assess the impact of pelvic floor symptoms on sexual activity
Urogenital Distress Inventory2 weeksValidated questionnaire to assess presence and degree of bother of lower urinary tract symptoms
Lower Urinary Tract Symptoms (LUTS) Tool2 weeksValidated questionnaire to assess lower urinary tract symptoms

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 25, 2026