Applying Num Vapocoolant Spray to Cervix Before Paracervical Block to Decrease Pain During Gynecology Procedures
NCT ID: NCT06227052
Last Updated: 2025-09-25
Study Results
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View full resultsBasic Information
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COMPLETED
PHASE4
98 participants
INTERVENTIONAL
2024-02-05
2025-03-07
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
SUPPORTIVE_CARE
SINGLE
Study Groups
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Natures Tears
This is the placebo arm. Participants in this arm will receive Natures Tears spray during their gynecologic procedure. They will receive the spray on their cervix right before the paracervical block. Natures Tears is normal saline, which is sprayed from a canister similar to the Num vapocoolant.
Placebo
This is the placebo. This group will receive Natures tear normal saline spray.
Num Vapocoolant Spray
This is the intervention arm.
Num Vapocoolant Spray
This is the study arm. Partipants in this arm will receive Num vapocoolant spray during their gynecologic procedure. They will receive the spray on their cervix right before the paracervical block. Num Vapocoolant spray is currently FDA approved to be used on skin prior to injections. The investigators are using it in the same fashion but in the vagina on the cervix to help with the pain of the paracervical block injection.
Interventions
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Num Vapocoolant Spray
This is the study arm. Partipants in this arm will receive Num vapocoolant spray during their gynecologic procedure. They will receive the spray on their cervix right before the paracervical block. Num Vapocoolant spray is currently FDA approved to be used on skin prior to injections. The investigators are using it in the same fashion but in the vagina on the cervix to help with the pain of the paracervical block injection.
Placebo
This is the placebo. This group will receive Natures tear normal saline spray.
Eligibility Criteria
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Inclusion Criteria
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
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)
18 Years
FEMALE
Yes
Sponsors
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Lakshmi Devi and Devraj Sharma Endowment
UNKNOWN
Queen's Medical Center
OTHER
Responsible Party
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Catherine Rault
Complex Family Planning Fellow
Principal Investigators
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Mary Tschann, PhD
Role: STUDY_CHAIR
University of Hawaii
Locations
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Queens Medical Center POB1 Clinic 1004
Honolulu, Hawaii, United States
Countries
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References
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Lambert T, Truong T, Gray B. Pain perception with cervical tenaculum placement during intrauterine device insertion: a randomised controlled trial. BMJ Sex Reprod Health. 2020 Apr;46(2):126-131. doi: 10.1136/bmjsrh-2019-200376. Epub 2019 Oct 30.
Kosaraju A, Vandewalle KS. A comparison of a refrigerant and a topical anesthetic gel as preinjection anesthetics: a clinical evaluation. J Am Dent Assoc. 2009 Jan;140(1):68-72; quiz 112-3. doi: 10.14219/jada.archive.2009.0020.
DiMarco AC, Wetmore AO. Clinical Comparison: Fast-Acting and Traditional Topical Dental Anesthetic. Anesth Prog. 2016 Summer;63(2):55-61. doi: 10.2344/0003-3006-63.2.55.
Zhu Y, Peng X, Wang S, Chen W, Liu C, Guo B, Zhao L, Gao Y, Wang K, Lou F. Vapocoolant spray versus placebo spray/no treatment for reducing pain from intravenous cannulation: A meta-analysis of randomized controlled trials. Am J Emerg Med. 2018 Nov;36(11):2085-2092. doi: 10.1016/j.ajem.2018.03.068. Epub 2018 Mar 27.
Isik MT, Oztunc G. Effects of subcutaneous injection after coolant spray on pain, hematoma, and ecchymosis in three different regions. Nurs Forum. 2022 May;57(3):352-357. doi: 10.1111/nuf.12688. Epub 2021 Dec 30.
Wang L, Fang L, Zhou Y, Fang X, Liu J, Qu G. Efficacy and safety of vapocoolant spray for vascular puncture in children and adults: A systematic review and meta-analysis. PLoS One. 2023 Feb 13;18(2):e0279463. doi: 10.1371/journal.pone.0279463. eCollection 2023.
Selvi F, Bedel C, Akcimen M. Evaluation of vapocoolant spray effect on pain reduction during digital nerve block: A randomized clinical trial. Am J Emerg Med. 2021 Dec;50:260-263. doi: 10.1016/j.ajem.2021.08.001. Epub 2021 Aug 6.
Ganji Z, Shirvani MA, Rezaei-Abhari F, Danesh M. The effect of intermittent local heat and cold on labor pain and child birth outcome. Iran J Nurs Midwifery Res. 2013 Jul;18(4):298-303.
Ernst E, Fialka V. Ice freezes pain? A review of the clinical effectiveness of analgesic cold therapy. J Pain Symptom Manage. 1994 Jan;9(1):56-9. doi: 10.1016/0885-3924(94)90150-3.
Unal N, Tosun B, Aslan O, Tunay S. Effects of Vapocoolant Spray Prior to SC LMWH Injection: An Experimental Study. Clin Nurs Res. 2021 Feb;30(2):127-134. doi: 10.1177/1054773818825486. Epub 2019 Jan 30.
Goldthwaite LM, Baldwin MK, Page J, Micks EA, Nichols MD, Edelman AB, Bednarek PH. Comparison of interventions for pain control with tenaculum placement: a randomized clinical trial. Contraception. 2014 Mar;89(3):229-33. doi: 10.1016/j.contraception.2013.11.018. Epub 2013 Dec 10.
Renner RM, Jensen JT, Nichols MD, Edelman AB. Pain control in first-trimester surgical abortion: a systematic review of randomized controlled trials. Contraception. 2010 May;81(5):372-88. doi: 10.1016/j.contraception.2009.12.008. Epub 2010 Jan 27.
Renner RM, Nichols MD, Jensen JT, Li H, Edelman AB. Paracervical block for pain control in first-trimester surgical abortion: a randomized controlled trial. Obstet Gynecol. 2012 May;119(5):1030-7. doi: 10.1097/AOG.0b013e318250b13e.
Chin J, Kaneshiro B, Elia J, Raidoo S, Savala M, Soon R. Buffered lidocaine for paracervical blocks in first-trimester abortions: a randomized controlled trial. Contracept X. 2020 Oct 18;2:100044. doi: 10.1016/j.conx.2020.100044. eCollection 2020.
Todd KH, Funk KG, Funk JP, Bonacci R. Clinical significance of reported changes in pain severity. Ann Emerg Med. 1996 Apr;27(4):485-9. doi: 10.1016/s0196-0644(96)70238-x.
Jensen MP, Chen C, Brugger AM. Interpretation of visual analog scale ratings and change scores: a reanalysis of two clinical trials of postoperative pain. J Pain. 2003 Sep;4(7):407-14. doi: 10.1016/s1526-5900(03)00716-8.
Renner RM, Edelman AB, Nichols MD, Jensen JT, Lim JY, Bednarek PH. Refining paracervical block techniques for pain control in first trimester surgical abortion: a randomized controlled noninferiority trial. Contraception. 2016 Nov;94(5):461-466. doi: 10.1016/j.contraception.2016.05.005. Epub 2016 May 25.
Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Document Type: Informed Consent Form
Related Links
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Num Vapocoolant Website
Other Identifiers
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RA-2023-046 VAPOR1004
Identifier Type: -
Identifier Source: org_study_id
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