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Recruiting NCT06960317

Empathy Through Pain Control: Lidocaine Paracervical Block for IUD Placements

No phase Interventional Contraception Pain, Acute Anesthesia, Local

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Buffered Lidocaine, Sham Comparator, Unbuffered lidocaine, Xylocaine jelly 2%.
Who it may be relevant to
Registry conditions: Contraception, Pain, Acute, Anesthesia, Local. Basic parameters: 18 years — 50 years · Female.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
United States
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

Unsure about the terms? Read our patient guide →

Official title

Expanding the Use of Paracervical Block for IUD Placements and Adding a Compassionate Care Assessment

Overview

The goal of this research study is to learn more about how different uses of a numbing medication might affect pain levels while getting an IUD placed. The investigators are also studying participants opinions of their clinicians' empathy. The investigators are inviting patients who arrive at their clinic visit seeking an IUD. Usually, at University of California, San Diego (UCSD), for patients who have never delivered a baby, clinicians use a buffered paracervical block for before IUD placement. The purpose of this research study is to investigate whether a "buffered" (2 cc of sodium bicarbonate, 18 cc of 1% lidocaine) paracervical block (numbing medication given on both sides of the cervix) is effective in reducing pain during IUD placement in individuals with prior C-sections, the difference between buffered and unbuffered for nulliparous patients, and whether a medicated gel reduces pain with the paracervical block.

Detailed description

Lidocaine is a drug that has been approved by the Food and Drug Administration (FDA). Sodium bicarbonate is an additive that buffers the acidity of lidocaine. The combination of the two is safe and effective as a paracervical block for pain relief in various OBGYN procedures. At UCSD and other places, it is not currently standard practice for people with prior deliveries birth to receive a paracervical block prior to IUD placement.

Participants who take part in this study, may receive an injection of buffered lidocaine (2 cc of sodium bicarbonate, 18 cc of 1% lidocaine), an injection of unbuffered block, and/or lidocaine gel.

Throughout the local anesthetic and intrauterine device (IUD) placement procedure, research team members will present participants with questionnaires to complete to assess participants' pain, participants' satisfaction with the procedure, and how much empathy participants feel the clinician has shown.

Interventions

  • Drug Buffered Lidocaine
    To determine if a 20 cc buffered (2 cc of sodium bicarbonate, 18 cc of 1% lidocaine) lidocaine paracervical block decreases pain with IUD placement
  • Other Sham Comparator
    None - capped needle will not be injected nor will it contain any medication.
  • Drug Unbuffered lidocaine
    To determine if a 20 cc unbuffered (1% lidocaine) lidocaine paracervical block decreases pain with IUD placement
  • Drug Xylocaine jelly 2%
    To determine if a Xylocaine jelly (2% infused lidocaine) decreases pain with paracervical block
  • Drug Surgilube
    To determine if a placebo gel is inferior to lidocaine gel for pain with paracervical block

Primary outcome measures

  • Pain scores during IUD placement procedure [Time frame: From speculum placement to 5 minutes post-procedure]
Secondary outcome measures (1)
  • Patient perceptions of clinician empathy [Time frame: From pre-procedure baseline to 5 minutes post-procedure]

Eligibility criteria

Inclusion criteria

  • Ability to provide informed consent
  • Women IUD placement for contraception or heavy menstrual bleeding
  • Ages 18-50
  • English-speaking
  • Participants must not have a past medical history of substance use disorders, pain disorders, use of prescription pain medications or are found to be pregnant

Exclusion criteria

  • No history of vaginal delivery
  • Current use of prescription pain medication prior to procedure. Over-the-counter medications such as those containing ibuprofen, aspirin, acetaminophen, or naproxen are allowed.
  • Diagnosed chronic pain condition
  • Current pregnancy
  • Known allergic reactions to components of the local anesthetic
  • History of an IUD placement
  • Current substance use or history of substance use
  • Known contraindications to IUD, such as unexplained vaginal bleeding

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Allocation
Randomized
Model
Parallel assignment
Masking
Single blind
Primary purpose
Treatment

Study locations

United States · 1 center
  • University of California, San Diego — La Jolla

Publications

  • 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. PMID 33196038
  • Azizkhani R, Forghani M, Maghami-Mehr A, Masomi B. The effects of injections of warmed bicarbonate-buffered Lidocaine as a painkiller for patients with trauma. J Inj Violence Res. 2015 Jul;7(2):87-8. doi: 10.5249/jivr.v7i2.523. Epub 2013 Dec 12. No abstract available. PMID 24879075
  • Mody SK, Farala JP, Jimenez B, Nishikawa M, Ngo LL. Paracervical Block for Intrauterine Device Placement Among Nulliparous Women: A Randomized Controlled Trial. Obstet Gynecol. 2018 Sep;132(3):575-582. doi: 10.1097/AOG.0000000000002790. PMID 30095776
  • Welch MN, Czyz CN, Kalwerisky K, Holck DE, Mihora LD. Double-blind, bilateral pain comparison with simultaneous injection of 2% lidocaine versus buffered 2% lidocaine for periocular anesthesia. Ophthalmology. 2012 Oct;119(10):2048-52. doi: 10.1016/j.ophtha.2012.05.029. Epub 2012 Jul 6. PMID 22771049
  • Narvaez J, Wessels I, Bacon G, Chin VR, Baqai WK, Zimmerman GJ. Prospective randomized evaluation of short-term complications when using buffered or unbuffered lidocaine 1% with epinephrine for blepharoplasty surgery. Ophthalmic Plast Reconstr Surg. 2010 Jan-Feb;26(1):33-5. doi: 10.1097/IOP.0b013e3181b80c13. PMID 20090482
  • Hobeich P, Simon S, Schneiderman E, He J. A prospective, randomized, double-blind comparison of the injection pain and anesthetic onset of 2% lidocaine with 1:100,000 epinephrine buffered with 5% and 10% sodium bicarbonate in maxillary infiltrations. J Endod. 2013 May;39(5):597-9. doi: 10.1016/j.joen.2013.01.008. Epub 2013 Mar 20. PMID 23611375
  • Harreld TK, Fowler S, Drum M, Reader A, Nusstein J, Beck M. Efficacy of a Buffered 4% Lidocaine Formulation for Incision and Drainage: A Prospective, Randomized, Double-blind Study. J Endod. 2015 Oct;41(10):1583-8. doi: 10.1016/j.joen.2015.06.017. Epub 2015 Aug 4. PMID 26253800
  • Maguire K, Davis A, Rosario Tejeda L, Westhoff C. Intracervical lidocaine gel for intrauterine device insertion: a randomized controlled trial. Contraception. 2012 Sep;86(3):214-9. doi: 10.1016/j.contraception.2012.01.005. Epub 2012 Feb 9. PMID 22325115

Identifiers

NCT: NCT06960317 · 812390

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗