Use of Cervical Cap and Menstrual Disc for Application of Topical Anesthetic Prior to IUD Insertion

NCT ID: NCT06891794

Last Updated: 2025-08-08

Basic Information

• Recruitment Status: RECRUITING
• Clinical Phase: NA
• Total Enrollment: 24 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-08-04
• Study Completion Date: 2026-04-30

Brief Summary

This prospective, open label, double arm, feasibility group study will recruit participants planning to undergo office intrauterine device (IUD) placement without sedation or anxiolysis at the Center for Women's Health. Participants will self-administer a topical anesthetic using a contraceptive cervical cap or menstrual disc.

Twenty-four nulliparous women will be recruited to receive one of two administration methods immediately prior to IUD placement (12 subjects in each arm): 1) menstrual disc filled with 5g eutectic mixture of local anesthetics (EMLA) cream or 2) cervical cap filled with 5g EMLA cream.

Detailed Description

Nulliparous patients undergoing IUD insertion will administer EMLA cream by menstrual disc or cervical cap prior to insertion. The medical provider will ensure proper placement of the cap or disc and perform a bi-manual exam to assess the patient's uterine position. A seven minute timer will be set, the cap/disc will be removed, and the provider will proceed with the IUD insertion according to manufacturer technique.

Visual Analog Scale (VAS) scores will be used throughout the procedure to assess participant pain throughout insertion. Participants and providers will report on pain, side effects, and procedure complications immediately after the procedure.

Conditions

IUD

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: PREVENTION
• Blinding Strategy: NONE

Study Groups

Menstrual disc

Participants will be provided with a menstrual disc filled with 5mg of 2.5% prilocaine-2.5% lidocaine cream and manufacturer instructions for placement. Study personnel will leave the room, and participants will undress and attempt to place the disc. The provider will return to the room, make sure the disc is correctly placed, and set a seven minute timer. After the seven minute timer, participants will self-remove the disc or the clinician will remove it and place the intrauterine device (IUD) according to manufacturer technique.

Group Type: EXPERIMENTAL

Menstrual disc with EMLA cream

Intervention Type: COMBINATION_PRODUCT

Eutectic mixture of local anesthetics (EMLA) cream self-administered using a menstrual disc

Cervical cap

Participants will be provided with a cervical cap filled with 5mg of 2.5% prilocaine-2.5% lidocaine cream and manufacturer instructions for placement. Study personnel will leave the room, and participants will undress and attempt to place the cap. The provider will return to the room, make sure the cap is correctly placed, and set a seven minute timer. After the seven minute timer, participants will self-remove the cap or the clinician will remove it and place the intrauterine device (IUD) according to manufacturer technique.

Group Type: EXPERIMENTAL

Cervical cap with EMLA cream

Intervention Type: COMBINATION_PRODUCT

Eutectic mixture of local anesthetics (EMLA) cream self-administered using a menstrual disc

Interventions

Menstrual disc with EMLA cream

Eutectic mixture of local anesthetics (EMLA) cream self-administered using a menstrual disc

Intervention Type: COMBINATION_PRODUCT

Cervical cap with EMLA cream

Eutectic mixture of local anesthetics (EMLA) cream self-administered using a menstrual disc

Intervention Type: COMBINATION_PRODUCT

Other Intervention Names

2.5% prilocaine-2.5% lidocaine cream; Softdisc; FemCap; 2.5% prilocaine-2.5% lidocaine cream

Eligibility Criteria

Inclusion Criteria

• Scheduled for IUD placement at the Center for Women's Health in Complex Family Planning clinic
• Able to review and sign study consents in English
• Generally healthy

Exclusion Criteria

• History of any prior births, miscarriages, or abortions after 16 weeks' gestation
• Currently pregnant, known or suspected
• Current stringless IUD in place
• Participants premedicated with misoprostol
• History of chronic pelvic pain which patients take daily medication for
• History of endometriosis, fibroids, adenomyosis, prior cervical procedures (such as Loop Electrosurgical Excision Procedure (LEEP) or cold knife cone)
• Any contraindications to IUD placement (per current labeling including pregnancy, fibroids that distort the uterine cavity, exam consistent with pelvic inflammatory disease, allergy to any component of the levonorgestrel intrauterine system (LNG-IUS), etc.)
• Known allergy to eutectic mixture of local anesthetics (EMLA) or lidocaine cream, silicone, menstrual disc, or cervical cap
• Any contraindication to EMLA or lidocaine cream, menstrual disc, or cervical cap
• Previous IUD placement or failed attempt of an IUD placement
• Weight < 54.4kg (120 lbs)
• Plan for use of oral anxiolysis, moderate/deep sedation, or narcotics for procedure
• Patient requesting or patient use in the past 24 hours of oral anxiolysis, moderate/deep sedation, or narcotics
• Any planned concomitant procedures, such as dilation and curettage (D&C), endometrial biopsy, colposcopy, hysteroscopy, etc.
• Illicit drug use

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 45 Years
• Eligible Sex: FEMALE
• Accepts Healthy Volunteers: No

Sponsors

Oregon Health and Science University

OTHER

Sponsor Role: lead

Responsible Party

Julia Tasset

Principal Investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Julia Tasset

Role: PRINCIPAL_INVESTIGATOR

Oregon Health and Science University

Locations

Oregon Health & Science University

Portland, Oregon, United States

Site Status: RECRUITING

Countries

United States

Central Contacts

Women's Health Research Unit Department of Ob/Gyn

Role: CONTACT

whru@ohsu.edu

503-494-3666

Facility Contacts

Women's Health Research Unit

Role: primary

whru@ohsu.edu

503-494-3666

Other Identifiers

OHSU IRB 28118

Identifier Type: -

Identifier Source: org_study_id