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Suction Cervical Stabilizer Compared to Standard Tenaculum for Intrauterine Procedures

Safety and Efficacy of a Suction Cervical Stabilizer Compared to the Standard Tenaculum for Intrauterine Procedures in the Clinic Setting

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06193590
Enrollment
73
Registered
2024-01-05
Start date
2023-11-09
Completion date
2024-04-15
Last updated
2025-06-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Abnormal Uterine Bleeding, Intrauterine Device (IUD)

Brief summary

To evaluate patient-reported pain, bleeding, and device efficiency along with provider satisfaction and ease of use between intrauterine procedures employing a suction cervical stabilizer (new device, FDA approved, atraumatic) or single-tooth tenaculum (standard, traumatic). This device, cleared by the FDA in 2023, was studied in Europe and showed pain reduced by up to 73% and bleeding reduced by 78% compared to the single-tooth tenaculum for intrauterine contraceptive device insertion. The investigators seek to study this device in the United States, and trial it among all intrauterine procedures.

Interventions

DEVICECarevix

Cervical stabilization device that uses vacuum

DEVICETenaculum

standard of care cervical stabilization device

Sponsors

Indiana University
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* • Age 18 years or older * Speaks and reads in English * Able to consent on their own * Will undergo any intrauterine procedure using the Carevix (for exposure group) or using Tenaculum (for Control Group) * Cervix at least 26 mm in diameter * Twenty providers performing this procedure

Exclusion criteria

* • Vaginal bleeding of unknown origin * Cervix less than 26 mm in diameter * Nabothian cyst on anterior lip of cervix * Cervical myomas * Cervical abnormalities * Pregnant

Design outcomes

Primary

MeasureTime frameDescription
Patient-perceived PainImmediately after intrauterine procedure and scheduled appointment is complete (approx. 5-10 minutes after procedure completion)Patients will be asked to rate their pain using the Numeric Rating Scale, a pain screening tool commonly used to assess pain severity at that moment in time using a 0-10 scale, with zero meaning no pain and 10 meaning the worst pain imaginable. Participants fill out their survey once the procedure and clinical appointment is concluded.

Secondary

MeasureTime frameDescription
Provider-perceived BleedingImmediately after intrauterine procedure and scheduled appointment is complete (approx. 5-10 minutes after procedure completion)Bleeding perceived by the provider during and after the procedure.
Provider-perceived Ease of UseImmediately after intrauterine procedure and scheduled appointment is complete (approx. 5-10 minutes after procedure completion)Providers will report their perceived ease of use with the Carevix device indicating Strongly Disagree, Disagree, Agree, or Strongly Agree and open response.
Provider-perceived SatisfactionImmediately after intrauterine procedure and scheduled appointment is complete (approx. 5-10 minutes after procedure completion)Providers will report their perceived satisfaction indicating Strongly Disagree, Disagree, Agree, or Strongly Agree and open response. In the Tenaculum arm, providers reported if they preferred the cervical tenaculum to the Carevix device. Providers complete their portion of the survey after the appointment is concluded.

Countries

United States

Participant flow

Recruitment details

Patients were recruited from a women's health clinic in Indianapolis. Enrolled participants were at least 18 years old, English-speaking, and scheduled to undergo an intrauterine procedure. A total of 73 patients were enrolled with 60 eligible participants who received cervical stabilization during their procedure.

Pre-assignment details

Patients were ineligible if they did not meet these criteria, as well as if they presented with vaginal bleeding of unknown origin, cervix less than 26 mm in diameter, Nabothian cyst on anterior lip of cervix, cervical myomas, cervical abnormalities/shape, or if they were pregnant. Patients were also designated ineligible if they did not receive any cervical stabilization. Patients were recruited in two waves corresponding with each arm.

Participants by arm

ArmCount
Carevix
Suction cervical stabilizer utilized for intrauterine procedures Carevix: Cervical stabilization device that uses vacuum
30
Tenaculum
Standard of care cervical stabilization device Tenaculum: standard of care cervical stabilization device
30
Total60

Baseline characteristics

CharacteristicCarevixTenaculumTotal
Age, Customized
Age (years)
18-19
0 Participants1 Participants1 Participants
Age, Customized
Age (years)
20-30
14 Participants6 Participants20 Participants
Age, Customized
Age (years)
31-40
8 Participants11 Participants19 Participants
Age, Customized
Age (years)
41-50
6 Participants8 Participants14 Participants
Age, Customized
Age (years)
51-60
1 Participants2 Participants3 Participants
Age, Customized
Age (years)
61+
1 Participants1 Participants2 Participants
Age, Customized
Age (years)
Missing
0 Participants1 Participants1 Participants
Employment Status
Full-time (40+ hours a week)
16 Participants19 Participants35 Participants
Employment Status
Missing
1 Participants0 Participants1 Participants
Employment Status
Other
0 Participants0 Participants0 Participants
Employment Status
Part-time (less than 40 hours a week)
3 Participants1 Participants4 Participants
Employment Status
Prefer not to say
1 Participants0 Participants1 Participants
Employment Status
Retired
1 Participants1 Participants2 Participants
Employment Status
Self-employed, Freelance, or Contractor
2 Participants3 Participants5 Participants
Employment Status
Student
3 Participants1 Participants4 Participants
Employment Status
Student and Full-time
0 Participants1 Participants1 Participants
Employment Status
Student and Part-time
0 Participants1 Participants1 Participants
Employment Status
Unemployed
3 Participants3 Participants6 Participants
Highest level of complete education
Associate, Technical, or 2 year degree
3 Participants3 Participants6 Participants
Highest level of complete education
Bachelor's or 4 year degree
10 Participants9 Participants19 Participants
Highest level of complete education
Doctorate
1 Participants2 Participants3 Participants
Highest level of complete education
High School, GE, or equivalent
11 Participants5 Participants16 Participants
Highest level of complete education
Less than High School
0 Participants1 Participants1 Participants
Highest level of complete education
License or Professional Certification
0 Participants0 Participants0 Participants
Highest level of complete education
Master's degree
3 Participants5 Participants8 Participants
Highest level of complete education
Other
2 Participants0 Participants2 Participants
Highest level of complete education
Prefer not to say
0 Participants0 Participants0 Participants
Highest level of complete education
Some college
0 Participants5 Participants5 Participants
Marital Status
Divorced
1 Participants2 Participants3 Participants
Marital Status
Domestic partnership (or living together but not married)
5 Participants2 Participants7 Participants
Marital Status
Married
10 Participants13 Participants23 Participants
Marital Status
Other
0 Participants0 Participants0 Participants
Marital Status
Prefer not to say
0 Participants0 Participants0 Participants
Marital Status
Single
13 Participants13 Participants26 Participants
Marital Status
Widowed
1 Participants0 Participants1 Participants
Nulliparous/Multiparous
Caesarean Section delivery
4 Participants3 Participants7 Participants
Nulliparous/Multiparous
Multiparous
18 Participants17 Participants35 Participants
Nulliparous/Multiparous
Nulliparous
12 Participants13 Participants25 Participants
Nulliparous/Multiparous
Vaginal delivery
14 Participants16 Participants30 Participants
Race and Ethnicity Not Collected0 Participants
Sex: Female, Male
Female
30 Participants30 Participants60 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 360 / 37
other
Total, other adverse events
0 / 360 / 37
serious
Total, serious adverse events
0 / 360 / 37

Outcome results

Primary

Patient-perceived Pain

Patients will be asked to rate their pain using the Numeric Rating Scale, a pain screening tool commonly used to assess pain severity at that moment in time using a 0-10 scale, with zero meaning no pain and 10 meaning the worst pain imaginable. Participants fill out their survey once the procedure and clinical appointment is concluded.

Time frame: Immediately after intrauterine procedure and scheduled appointment is complete (approx. 5-10 minutes after procedure completion)

Population: Participants who underwent an intrauterine procedure with either the Carevix device or the Tenaculum.

ArmMeasureValue (MEDIAN)
CarevixPatient-perceived Pain3 score on a scale
TenaculumPatient-perceived Pain4 score on a scale
p-value: 0.21Wilcoxon (Mann-Whitney)
Secondary

Provider-perceived Bleeding

Bleeding perceived by the provider during and after the procedure.

Time frame: Immediately after intrauterine procedure and scheduled appointment is complete (approx. 5-10 minutes after procedure completion)

Population: Providers who completed the intrauterine procedure with their respective participants.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
CarevixProvider-perceived BleedingHad to manage/stop bleeding on cervical tissues3 Participants
CarevixProvider-perceived BleedingDid not have to manage/stop bleeding27 Participants
TenaculumProvider-perceived BleedingHad to manage/stop bleeding on cervical tissues9 Participants
TenaculumProvider-perceived BleedingDid not have to manage/stop bleeding21 Participants
p-value: 0.1Fisher Exact
Secondary

Provider-perceived Ease of Use

Providers will report their perceived ease of use with the Carevix device indicating Strongly Disagree, Disagree, Agree, or Strongly Agree and open response.

Time frame: Immediately after intrauterine procedure and scheduled appointment is complete (approx. 5-10 minutes after procedure completion)

Population: Providers were only asked about the Ease of use for the Carevix device.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
CarevixProvider-perceived Ease of UseStrongly Agree12 Participants
CarevixProvider-perceived Ease of UseAgree17 Participants
CarevixProvider-perceived Ease of UseDisagree1 Participants
CarevixProvider-perceived Ease of UseStrongly Disagree0 Participants
CarevixProvider-perceived Ease of UseI don't know/Not sure0 Participants
Secondary

Provider-perceived Satisfaction

Providers will report their perceived satisfaction indicating Strongly Disagree, Disagree, Agree, or Strongly Agree and open response. In the Tenaculum arm, providers reported if they preferred the cervical tenaculum to the Carevix device. Providers complete their portion of the survey after the appointment is concluded.

Time frame: Immediately after intrauterine procedure and scheduled appointment is complete (approx. 5-10 minutes after procedure completion)

Population: Providers who completed the intrauterine procedure with their respective participants.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
CarevixProvider-perceived SatisfactionAgree10 Participants
CarevixProvider-perceived SatisfactionDisagree5 Participants
CarevixProvider-perceived SatisfactionI don't know not sure0 Participants
CarevixProvider-perceived SatisfactionStrongly Disagree1 Participants
CarevixProvider-perceived SatisfactionStrongly Agree14 Participants
TenaculumProvider-perceived SatisfactionStrongly Disagree1 Participants
TenaculumProvider-perceived SatisfactionStrongly Agree2 Participants
TenaculumProvider-perceived SatisfactionAgree8 Participants
TenaculumProvider-perceived SatisfactionI don't know not sure16 Participants
TenaculumProvider-perceived SatisfactionDisagree3 Participants
p-value: 0.001Fisher Exact

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026