Stenosis of Cervix
Conditions
Brief summary
Misoprostol (Cytotec) 200ug vaginally will be given to patients 12 hours and 2 hours pre-operatively (before surgery) for a total of 400ug to ripen, soften or relax the cervix for dilation (opening). This is to assist with the insertion of a hysteroscope (the surgical instrument) into the uterus for all operative hysteroscopic procedures requiring dilation above 5 mm. Time required for cervical dilatation will be recorded. Start time will be when the smallest dilator is placed into the endocervical canal, and stop time recorded when the desired cervical dilation is achieved with the largest dilator. Depending on the procedure, desired dilation may range between 5-10mm. Time will serve as a surrogate for operative ease of dilatation. The investigators will compare the two groups in terms of medication, resistance, dilation time and size, side effects and surgical complications.
Detailed description
This study will be a randomized, double blinded, placebo controlled trial. Patients will be assigned by chance to receive 200ug of misoprostol or placebo (empty gelatin capsule) vaginally twice (for a total of 400ug). There is no standard of care, but to receive misoprostol or not are both accepted practices and that Standard of Care is for the clinicians to use clinical judgment . Patients will be randomized to one of the following treatment regimens: Group 1 will received 200ug of misoprostol, to be placed into the posterior vaginal fornix 12 hours and 2 hours before their scheduled surgery (a total of 400ug of misoprostol). St. Mary's pharmacy will prepare capsules with each containing 200ug of misoprostol. Group 2 will received placebo (empty gelatin capsule), to be placed into the posterior vaginal fornix 12 hours and 2 hours before their scheduled surgery. The two groups, will be compared in terms of side effects, resistance, dilation time, size and surgical complication. Randomization will occur using a computer program called Research Randomizer, http://www.randomizer.org/form.htm. A set of 100 non-unique numbers will be randomized. Once the randomization list is generated, envelopes will be made. Based on the randomizer results a folder slip of paper with the treatment (misoprostol or placebo) written on it will be placed in sequential numbered envelopes. The number on the envelope will be the patients code number. An unblinded member of the research team will open the randomized envelope, and log into a master drug log the randomization. The medication and/or placebo will be place in numbered sequentially bottles with a master drug log containing which is misoprostol and which is placebo. Each bottle will have child proof lids for dispensing and will be labeled misoprostol 200ug/each/placebo), physician name (Ward) and contact number, and For investigational use only will also be noted. The unblinded staff will notify the research member consenting the patient and inform them of what number bottle to give to the patient, in the office before surgery
Interventions
To be place vaginally
To be placed vaginally
Sponsors
Study design
Eligibility
Inclusion criteria
* 45-80yrs of age * Postmenopausal (amenorrhea for greater than 1 year) * May or may not be using hormone replacement therapy * Scheduled or to be scheduled for hysteroscopy/resectoscopy procedures
Exclusion criteria
* Pregnant * Known Cancer * Known hypersensitivity to prostaglandins. * Those who are breastfeeding
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Efficacy (Cervical Ripening) | At time of surgery/cervical dilation | To evaluate the efficacy of two doses of 200ug of misoprostol (for a total of 400ug), administered vaginally, on cervical ripening before diagnostic and operative hysteroscopic procedures in postmenopausal women (amenorrhea greater than 1 year). Efficacy is represented by time to dilation. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Number of Recorded Side Effects. | At time of surgery/cervical dilation | Secondary aim: to evaluate if cervical ripening with misoprostol reduces side effects |
| Dilation Time in Minutes | At time of procedure. | Time from beginning of cervical dilation to completion of cervical dilation. |
| Maximum Dilator Size | At time of procedure. | The largest cervical dilator that could be passed through the internal cervical os. |
| Number of Complications | At time of procedure. | Count of complications at time of surgery. |
| Resistance Score | At time of procedure. | Ease of Dilation Per Surgeon on a numeric scale of 1(easier than normal) to 5 (more difficult than normal) with 3 being normal. |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Misoprostol Group Group 1 will receive 200 ug of misoprostol to be placed into the posterior vaginal fornix 12 hours and 2 hours before the scheduled surgery (a total of 400 ug misoprostol).
Misoprostol: To be placed vaginally
Baseline characteristics not compiled because of early termination. | 8 |
| Placebo Group Group 1 will receive placebo (empty gelatin capsule) to be placed into the posterior vaginal fornix 12 hours and 2 hours before the scheduled surgery.
Placebo: To be placed vaginally
Baseline characteristics not compiled because of early termination. | 3 |
| Total | 11 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Overall Study | Early Termination | 8 | 3 |
Baseline characteristics
| Characteristic | Placebo Group | Misoprostol Group | Total |
|---|---|---|---|
| Age, Categorical <=18 years | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical >=65 years | 1 Participants | 3 Participants | 4 Participants |
| Age, Categorical Between 18 and 65 years | 2 Participants | 4 Participants | 6 Participants |
| Age, Continuous | 58.7 years STANDARD_DEVIATION 6.1 | 62.3 years STANDARD_DEVIATION 5.2 | 61.2 years STANDARD_DEVIATION 5.5 |
| Region of Enrollment United States | 3 participants | 8 participants | 11 participants |
| Sex: Female, Male Female | 3 Participants | 8 Participants | 11 Participants |
| Sex: Female, Male Male | 0 Participants | 0 Participants | 0 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — |
| other Total, other adverse events | 0 / 8 | 0 / 3 |
| serious Total, serious adverse events | 0 / 8 | 0 / 3 |
Outcome results
Efficacy (Cervical Ripening)
To evaluate the efficacy of two doses of 200ug of misoprostol (for a total of 400ug), administered vaginally, on cervical ripening before diagnostic and operative hysteroscopic procedures in postmenopausal women (amenorrhea greater than 1 year). Efficacy is represented by time to dilation.
Time frame: At time of surgery/cervical dilation
Population: Outcome measures presented below.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Group 1 | Efficacy (Cervical Ripening) | 1.9 minutes | Standard Deviation 1.1 |
| Group 2 | Efficacy (Cervical Ripening) | 1.4 minutes | Standard Deviation 0.4 |
Dilation Time in Minutes
Time from beginning of cervical dilation to completion of cervical dilation.
Time frame: At time of procedure.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Group 1 | Dilation Time in Minutes | 1.9 minutes | Standard Deviation 1.1 |
| Group 2 | Dilation Time in Minutes | 1.4 minutes | Standard Deviation 0.4 |
Maximum Dilator Size
The largest cervical dilator that could be passed through the internal cervical os.
Time frame: At time of procedure.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Group 1 | Maximum Dilator Size | 10.3 millimeters | Standard Deviation 4.8 |
| Group 2 | Maximum Dilator Size | 6 millimeters | Standard Deviation 0 |
Number of Complications
Count of complications at time of surgery.
Time frame: At time of procedure.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Group 1 | Number of Complications | 0.1 complications | Standard Deviation 0.4 |
| Group 2 | Number of Complications | 0 complications | Standard Deviation 0 |
Number of Recorded Side Effects.
Secondary aim: to evaluate if cervical ripening with misoprostol reduces side effects
Time frame: At time of surgery/cervical dilation
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Group 1 | Number of Recorded Side Effects. | 0.6 number of side effects out of seven | Standard Deviation 0.1 |
| Group 2 | Number of Recorded Side Effects. | 0.6 number of side effects out of seven | Standard Deviation 0.3 |
Resistance Score
Ease of Dilation Per Surgeon on a numeric scale of 1(easier than normal) to 5 (more difficult than normal) with 3 being normal.
Time frame: At time of procedure.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Group 1 | Resistance Score | 2.9 units on a scale | Standard Deviation 2 |
| Group 2 | Resistance Score | 2.7 units on a scale | Standard Deviation 0.6 |