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Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT03847922
Other study ID # 019-002
Secondary ID
Status Terminated
Phase Phase 4
First received
Last updated
Start date February 15, 2019
Est. completion date July 23, 2020

Study information

Verified date February 2019
Source Baylor Research Institute
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study is designed to determine primarily if there is a difference in perceived pain in patients receiving urethral bulking with calcium hydroxylapatite using local lidocaine versus local lidocaine plus nitrous oxide gas. Patients will be randomized to a control group (local lidocaine plus room air) or a intervention group (local lidocaine plus 50% nitrous oxide/50% oxygen inhaled mixture). Their pain will be assessed immediately after the procedure, and their recollection of pain will also be assessed at their 2 week post-procedure visit. There are other secondary outcome measures as well; please see outcome measures section for full description.


Recruitment information / eligibility

Status Terminated
Enrollment 2
Est. completion date July 23, 2020
Est. primary completion date July 23, 2020
Accepts healthy volunteers No
Gender Female
Age group 18 Years to 100 Years
Eligibility Inclusion Criteria:

- Female patients

- greater than or equal to 18 years old

- with demonstrable stress incontinence on supine stress test

- undergoing calcium hydroxylapatite injection for urethral bulking for the first time

- able to consent to the study and procedure

Exclusion Criteria:

- < 18 years old

- prior urethral bulking therapy

- predominant urge incontinence symptoms

- contraindications to nitrous oxide

- pre-existing significant cardiopulmonary disease

- hypotension defined as systolic blood pressure (BP) < 90 or diastolic BP <50 on initial BP in the office

- chronic pain disorders (specifically fibromyalgia, chronic pelvic pain, sciatica or chronic low back pain, painful bladder syndrome)

- chronic narcotic use (defined as taking a narcotic medication >3 days per week during the past two weeks)

- pregnancy

- conditions of air trapping (bullous emphysema, bowel obstruction, pneumothorax, intracranial air, middle ear conditions, status post recent diving, recent eye surgery)

- lidocaine allergy

- neurologic diseases impairing pain perception.

Study Design


Intervention

Drug:
Nitrous Oxide + Oxygen Gas (Product)
Self-administered 50% nitrous oxide / 50% oxygen mixture will be given to the intervention group, starting just before the beginning of the urethral bulking procedure.
lidocaine gel 2%
6mL of 2% lidocaine gel will be inserted and injected into the urethral canal approximately 10 minutes prior to the procedure for each participant regardless of group assignment.
Other:
Room air
Room air will be administered via the Pro-Nox machine to participants in the control group, starting just before the beginning of the urethral bulking procedure.

Locations

Country Name City State
United States Baylor Scott and White Medical Center Temple Texas

Sponsors (1)

Lead Sponsor Collaborator
Baylor Research Institute

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Change in pain Pain will be assessed both before the procedure upon enrollment immediately after the procedure using a 10cm visual analog scale (VAS), where patients will mark their pain level along the scale from "no pain" at 0cm to "pain as bad as it possibly could be" at 10cm; the change in pain score between the before and after procedure VASs (i.e. the baseline pain score subtracted from the post-procedure pain score) is the primary outcome upon enrollment and immediately after the procedure
Secondary Recollection of change in pain Recollection of pain measured by a 10cm visual analog scale (VAS) completed 10 minutes after the procedure; this will be compared to the baseline pain score on VAS from prior to the procedure, again to determine the patient's perceived change in pain during the procedure. The VAS used has patients mark their pain level along the scale from "no pain" at 0cm to "pain as bad as it possibly could be" at 10cm. The score on the VAS at baseline is subtracted from the score on the VAS at 10 minutes to get the change in pain as the patient remembered it. 10 minutes after the procedure
Secondary Procedure time Time from the initial insertion of the cystoscope (for the injection of calcium hydroxylapatite) to final removal of the cystoscope Intra-procedure
Secondary Change in Urogenital Distress Inventory (UDI-6) score A change in the patient's UDI-6 score, measured prior to procedure and then again at the 1-2 week post-procedure visit. UDI-6 is a measure of the severity of urinary symptoms the patient experiences, with minimum score of 0 (indicating no bother from urinary symptoms) and maximum score of 100 (indicating maximum bother from urinary symptoms). We will be assessing the change in this score from baseline, by subtracting the post-procedure score at 1-2 weeks from the baseline score. at enrollment and then again at the patient's 1-2 week post-procedure visit.
Secondary Change in Incontinence Severity Index (ISI) score A change in the patient's ISI score, measured prior to procedure and then again at the 1-2 week post-procedure visit. ISI score measures severity of incontinence symptoms on a scale of 0 to 12, where 0 is no symptoms and 12 is maximal incontinence symptoms. We will calculate the change in score by subtracting the post-procedure score at 1-2 weeks from the baseline score. at enrollment and then again at the patient's 1-2 week post-procedure visit.
Secondary Patient Global Impression of Improvement (PGI-I) score Score on PGI-I at the patient's 1-2 week post-procedure visit. This score assesses who the patient feels their post-procedure condition is compared to prior to the procedure on a scale of 1-7, where 1 is "very much better" and 7 is "very much worse." 1-2 week post op visit
Secondary Adverse events apneic episodes > 15 seconds, patient lack of responsiveness, patient dissociative behavior, hypotension with blood pressure < 90/50, bradycardia < 50bpm, hypoxia with oxygen saturation <92% on pulse oximetry, significant nausea or vomiting during the procedure
Secondary Blood pressure We will record blood pressure every 5 minutes during the procedure during the procedure
Secondary Episodes of hypoxia We will record any oxygen saturation < 92% during the procedure during the procedure
Secondary Episodes of bradycardia We will record any episodes of heart rate < 60bpm during the procedure during the procedure
Secondary Episodes of tachycardia We will record episodes of heart rate > 100bpm during the procedure during the procedure
Secondary Patient's suspected group assignment 10 minutes after the procedure, the patients will be asked to which treatment arm they suspected they were allocated 10 minutes after the procedure
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