Recruiting

Observational Study

Sponsor:

UCLA

Code:

NCT06778070

Conditions

Chronic Pelvic Pain Syndrome (CPPS)

Chronic Pelvic Pain Syndrome

Chronic Pelvic Pain

Eligibility Criteria

Sex: Female

Age: 18+

Healthy Volunteers: Not accepted

Interventions

Pelvic floor yoga

Physical conditioning

Study Details

Brief summary:

A randomized, parallel-group, investigator-blinded, comparative effectiveness trial of a fully remote, videoconference-based pelvic floor yoga program versus a physical conditioning program for women with chronic pelvic pain syndrome.

Conditions

Chronic Pelvic Pain Syndrome (CPPS)

Chronic Pelvic Pain Syndrome

Chronic Pelvic Pain

Study ID

NCT06778070

Start date

May 12, 2025

Status verified date

Mar, 2026

Completion date

Mar 15, 2029

Anticipated

Primary completion date

Jan 15, 2029

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: Female

Age: 18+

Healthy Volunteers: Not accepted

Inclusion Criteria:

  • Women (individuals reporting female sex assigned at birth who self-identify as women or non-binary) aged 18 years or older
  • Report chronic or recurrent pain in the pelvis (between or below the anterior iliac crests) for at least 6 months
  • Report at least moderate pain intensity based on a screening pain log
  • Report prior clinical evaluation of their pelvic pain by a healthcare professional including at least a superficial pelvic exam
  • Willing to refrain from initiating new clinical treatments that may affect their pain during the study period

Exclusion Criteria:

  • Report pelvic pain occurring exclusively with menses or exclusively during sexual intercourse (although candidates with at least some pain between menses or intercourse are still eligible)
  • Participation in organized yoga classes or muscle strengthening programs (e.g., Pilates) in the past 4 weeks, or any prior yoga therapy specifically directed at pelvic pain
  • Lacking technical requirements to complete intervention classes by video, including no access to broadband internet or a Zoom-compatible device larger than a smartphone \[display screen at least 7 inches in diagonal\] (although the study team may loan devices to participants from underrepresented backgrounds)
  • Currently pregnant (by self-report or screening test), pregnant within the past 12 weeks, or planning pregnancy during the study period
  • Diagnosed with an alternate, reversible cause of pelvic pain that is unlikely to respond to yoga and requires another treatment modality (e.g., current pelvic infection or a gynecologic dermatosis)
  • Surgery or irradiation to the genital or pelvic structures within the past 12 weeks, or anticipating upcoming surgery or irradiation to these structures during the study period
  • Initiation, dose escalation, or weaning of pharmacologic agents that may affect pelvic pain severity in the past 4 weeks, such as analgesics, antidepressants, or anticonvulsants-(however, women on stable doses of these medications for at least 4 weeks will still be eligible)
  • Use of formal psychological therapies specifically for pelvic pain (e.g., systematic desensitization, cognitive therapy, relaxation therapy) within 4 weeks of screening, or plans to engage in these therapies during the study period
  • Unable to walk up a flight of stairs or at least 2 blocks on level ground (i.e., functional capacity < 4 METs), or unable to get up from a supine to a standing position without assistance
  • Participation in another interventional study that might interfere with or confound study procedures, or known conflict with multiple upcoming study intervention class dates
  • Inability to understand the informed consent form or fill out questionnaires or complete study interviews
  • Any other serious physical or mental issue that, in the opinion of the investigators, would interfere with study participation (e.g., advanced dementia, uncontrolled substance use or serious mental illness, life expectancy <6 months)

Study Design

Enrollment

220 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: Pelvic floor yoga program

Instruction in the therapeutic yoga intervention will be delivered through 75-minute group classes occurring twice weekly for a 2-month (8-week) intervention instruction period, involving a trained instructor and an expected 6-10 students (a.k.a. participants) using a secure Zoom videoconference platform.

Following the 8-week intervention instruction period, additional optional once-weekly, 75-minute drop-in group classes will be offered over an additional 8-week intervention maintenance period.

active comparator: Physical conditioning program (Skeletal muscle stretching and strengthening program)

The physical conditioning program (skeletal muscle stretching and strengthening program) intervention will begin with a group orientation led by a physical trainer, who will provide an overview of the program. This will be followed by 75-minute twice-weekly group classes, each with an expected class size of 6-10 participants, led by the same physical trainer who has received study-specific training from the study's expert physical therapist consultant, and using a secure Zoom videoconference platform.

Following the 8-week intervention instruction period, additional optional once-weekly, 75-minute drop-in group classes will be offered over an additional 8-week intervention maintenance period.

Interventions

Pelvic floor yoga

Pelvic floor yoga

Physical conditioning

Physical conditioning

Primary outcome measure

  • Pelvic pain intensity "on average" using standard 0-10 numerical rating scale, measured using logs in which participants self-report pain intensity over the past week, and assessed over 4 months of intervention [ Time Frame: After 4 months of intervention instruction and maintenance period. ]
  • Pelvic pain intensity "at its worst" using standard 0-10 numerical rating scale, measured using logs in which participants to self-report pain intensity over the past week, and assessed over 4 months of intervention [ Time Frame: After 4 months of intervention instruction and maintenance period. ]

Central Contacts and Locations

Central contacts

Alison Huang, MD, MAS, MPhil

415-514-8697Alison.Huang@ucsf.edu

Carolyn Gibson, PhD

415-205-4108carolyn.gibson@ucsf.edu

Locations

University of California San Francisco

Recruiting

San Francisco, California, United States, 94115

Contacts

Claudia Vila Manes

415-353-4122PelvicPainStudy@ucsf.edu

Jenny Chen

415-353-4122PelvicPainStudy@ucsf.edu

More Information

Sponsor

University of California, San Francisco

Last update posted

Mar 6, 2026

Last verified

Mar, 2026

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by University of California, San Francisco on 2026-03-06.