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Assessing the Mechanisms and Impact of a Novel Cannabinoid Product for Gynecologic Pain

PAIN-GP: Project Assessing the Mechanisms and Impact of a Novel Cannabinoid Product for Gynecologic Pain

Who can join

Ages 21 and older · Women

Inclusion Criteria:

* Provides informed consent
* Sex assigned female at birth
* Capable of having menstrual cycles
* Aged 21+
* Endorses one of the following gynecologic pain conditions: endometriosis, adenomyosis, chronic pelvic inflammatory disease (PID)
* Stable medication/psychotherapy regimens for at least 3 months prior to starting the study, including hormonal contraceptives

Additional inclusion criteria for those in the PK subgroup:

* Willingness to participate in the PK procedures (i.e., agree to an indwelling catheter with repeated blood collection)

Exclusion Criteria:

* Meets criteria for DSM-5 classification of current substance use disorder, psychotic disorder, bipolar disorder, or an eating disorder
* Currently uses cannabinoid products
* Positive urine pregnancy test, are trying to become pregnant, or are currently breastfeeding
* Presence of a serious or unstable medical illness, including liver/kidney disease, cardiovascular disease, neurological disorder, and conditions or medications that impact drug absorption or gastric emptying (e.g., GLP-1 agonists)
* Comorbid neuropathic pain or cancer-related pain
* Disclosure of a genetic polymorphism affecting CYP2C9 function
* Liver function test (LFT) values \>3x the upper limit of normal (ULN) at the baseline visit

About the study

Despite recent increases in both medical and recreational cannabis use in the United States and globally, little research has been conducted to determine the potential applications for womens health. A variety of medical cannabis and hemp-derived products on the marketplace claim to hold efficacy for many womens health-related conditions, including gynecologic pain. This 7-day study of individuals living with endometriosis, adenomyosis, or chronic pelvic inflammatory disease (PID), will identify specific targets and mechanisms underlying the potential impact of a hemp-derived, full-spectrum, high-CBD product in individuals with gynecologic pain.

What is being tested

• Custom-formulated, high-CBD study product (drug)
• Placebo (drug)

Sponsor: Staci Gruber, Ph.D. · Participants: 60 · Started: 2026-09

Contact the study team

• Staci Gruber, PhD · Phone: 617-855-2762
• Rosie Smith, M.S. · Phone: 617-855-2908

Official record on ClinicalTrials.gov — NCT07728695

Locations in the U.S.

Conditions

• Endometriosis

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.