Using a cooling spray to reduce pain during gynecology procedures

Vapocoolant Application for Pain Reduction During Office-based Gynecologic Procedures: a Randomized Controlled Trial (VAPOR)

Phase 4 Interventional Queen's Medical Center · NCT06227052

This study is testing if a cooling spray can help reduce pain for women during certain gynecological procedures.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment98 (estimated)
Ages18 Years and up
SexFemale
SponsorQueen's Medical Center Academic / other
Locations1 site (Honolulu, Hawaii)
Trial IDNCT06227052 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of Num vapocoolant spray in reducing pain associated with paracervical blocks during gynecological procedures. Eligible patients will be randomized to receive either the vapocoolant spray or a placebo just before the procedure. The study aims to determine if the cooling effect of the spray can significantly decrease pain levels experienced during the paracervical block. Informed consent will be obtained from all participants prior to their involvement in the study.

Who should consider this trial

Good fit: Ideal candidates are English-speaking adults aged 18 and older who are undergoing a gynecological procedure that requires a paracervical block.

Not a fit: Patients who require narcotics, anxiolytics, or sedation for their procedure, or those with allergies to the study components, may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to a more comfortable experience for patients undergoing gynecological procedures requiring a paracervical block.

How similar studies have performed: While the use of vapocoolant sprays is a novel approach in this specific context, similar studies have shown promise in pain reduction techniques.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age 18 years of age or older

Undergoing a procedure requiring paracervical block

English-speaking

Able and willing to sign the informed consent form and agree to terms of the study

Exclusion Criteria:

* Required or requested narcotics, anxiolytics, IV sedation, or general anesthesia for the procedure

Declines or has a contraindication/allergy to ibuprofen

Previously received vapocoolant spray in a medical setting

Contraindications or allergies to lidocaine for paracervical block or vapocoolant spray components (1,1,3,3-pentafluoropropaine or 1,1,1,2-tetrafluroethane)

Where this trial is running

Honolulu, Hawaii

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Pain With Paracervical BlockPain With Gynecology ProcedurePainPain with Paracervical BlockPain with Gynecology ProcedureNum Vapocoolant SprayVapocoolant SprayVapocoolant
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.