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Cyclic Versus Continuous Sacral Neuromodulation for LUTS

CYclic Versus Continuous Sacral Modulation for LowEr Urinary Tract Symptoms: a Prospective Randomized Controlled Trial (CYCLE Trial)

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06170450
Enrollment
50
Registered
2023-12-14
Start date
2024-04-15
Completion date
2026-05-12
Last updated
2026-07-24

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

Conditions

Overactive Bladder Syndrome

Brief summary

This will be a prospective, randomized-controlled multi-site trial comparing cyclic versus continuous sacral neuromodulation (SNM) for OAB.

Detailed description

Overactive bladder (OAB) is characterized by urinary frequency, urgency, incontinence, and nocturia in the absence of other pathology. AUA guidelines recommend trial of sacral neuromodulation (SNM) for patients with refractory OAB who have failed treatment with behavioral modification and medication. SNM settings are typically selected based on discussion between the patient and device representative. There is a paucity of rigorous data assessing optimal SNM stimulation programming for symptomatic improvement. This will be a prospective, randomized-controlled multi-site trial comparing cyclic versus continuous sacral neuromodulation (SNM) in patients undergoing SNM for OAB. Patients \> age 18 with a diagnosis of refractory OAB being scheduled for a trial of SNM (either stage I lead/temporary battery placement or office peripheral nerve evaluation) will be approached by study personnel during their clinic visit or by a phone call to determine if they are interested in participating in the programming study. Patients interested in participating will provide written informed consent. After informed consent is obtained, a baseline evaluation will be performed. This includes history, 3-day voiding diary (# voiding episodes, # nocturia episodes, # urge incontinence episodes/24h), urinalysis, urine culture (if indicated), post void residuals, and symptom assessments using questionnaires. Only those with successful trial and eligible/ interested in permanent SNM placement will participate in this trial. Randomization will occur after stage 2/ full permanent implantation when the neuromodulator is being programmed in the recovery room. Patients will be randomly assigned to either continuous stimulation or cyclic stimulation. Patients will then be followed with clinical evaluation and questionnaires repeated at 1 month, 6 months, 12 months, 3 years, and 5 years post-op.

Interventions

DEVICECyclic SNM

SNM cycling: 8 hours on, 16 hours off

DEVICEContinuous SNM

Continuous SNM: on continuously, no 'off' period

Sponsors

University Hospitals Cleveland Medical Center
Lead SponsorOTHER
Northwestern University
CollaboratorOTHER
University of Louisville
CollaboratorOTHER
Metro Health, Michigan
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Patients 18 years of age or older * Female * English Speaking * Diagnosis of urinary urge incontinence or overactive bladder * Meet criteria for and are planning permanent SNM (ie. successful stage I or office PNE trial of SNM with 50% or more reduction in UUI episodes) * Willing and able to complete all study related items

Exclusion criteria

* Patients less than 18 years of age * Unable to provide consent * Non-English speaking * Relevant neurologic diseases (multiple sclerosis, Parkinson Disease, myasthenia gravis, - - - Charcot-Marie-Tooth disease, complete spinal cord injury) * Current or prior bladder malignancy

Design outcomes

Primary

MeasureTime frameDescription
Change in ICIQ-OAB-QoL ScoreBaseline to 12 months post-operativelyICIQ-OABqol is a 28 question patient-completed survey evaluating quality of life (QoL) in patients with overactive bladder. Score ranges 25-160 points with greater value indicating increased impact on quality of life.

Secondary

MeasureTime frameDescription
Change in ICIQ-OAB-QoL Score1 month, 6 months post-operativelyICIQ-OABqol is a 28 question patient-completed survey evaluating quality of life (QoL) in patients with overactive bladder. Score ranges 25-160 points with greater value indicating increased impact on quality of life
Change in OAB-q SF1 month, 6 months, 12 months post-operativelyOAB-q SF is a 19 question patient-completed survey evaluating symptom bother and quality of life in patients with overactive bladder. Scores range 3- 36, higher values indicating increased symptom severity
Change in Overactive Bladder Symptom Score (OABSS)1 month, 6 months, 12 months post-operativelyThe Overactive Bladder Symptom Score (OABSS) is a 4 question validated symptom assessment tool for patients with OAB and assesses number of episodes of frequency, nocturia, urgency, and urge incontinence. Scores range 0-15 with higher scores indicating higher severity.
Change in Incontinence Impact Questionnaire SF (IIQ-7)1 month, 6 months, 12 months post-operativelyIncontinence Impact Questionnaire SF (IIQ-7) is a 7-item validated questionnaire that assesses urinary symptoms, the symptom bother, and the impact the bother has on patients' quality of life using a 4-point bother scale. Scores range 0-100 (raw score multiplied by 33 1/3 to transform scale) with higher scores indicating higher bother
Urinary Distress Inventory SF (UDI-6)1 month, 6 months, 12 months post-operativelyUrinary Distress Inventory SF (UDI-6) is a 6 item validated questionnaire that assesses urinary symptoms, the symptom bother, and the impact the bother has on patients' quality of life using a 4-point bother scale. Scores 6 items, range 0-100 (raw score multiplied by 33 1/3 to transform scale) with higher scores indicating higher distress.
Patient Global Impression of Severity (PGI-S)1 month, 6 months, 12 months post-operativelyPatient Global Impression of Severity (PGI-S) is a 1-item 4-point scale designed to assess for disease severity where 1 indicates "normal," 2 is "mild," 3 is "moderate," and 4 is "severe." Outcome measured is number of participants per group who reported disease is "severe" at each timepoint.
Patient Global Impression of Improvement (PGI-I)1 month, 6 months, 12 months post-operativelyPatient Global Impression of Improvement (PGI-I) is a 1-item scale designed to assess symptom improvement with answer choices: Very much better, Much better, A little better, No change, A little worse, Much worse, Very much worse. Outcome measure includes number of participants per group who reported "very much better" or "much better" at each timepoint
Overactive Bladder Satisfaction of Treatment Questionnaire1 month, 6 months, 12 months post-operativelyChange in Overactive Bladder Satisfaction of Treatment Questionnaire (OAB-SAT-q) is an 11-item validated questionnaire that assesses patients' satisfaction with their OAB treatment within a clinical setting from baseline. Score range 0-100 with higher scores indicating greater treatment satisfaction
Change in Voiding Episodes Per Day1 month, 6 months, 12 months post-operativelyPatients will use 3 days bladder diaries to track voiding episodes per day, voiding episodes per night, pads per day, and urge incontinence episodes per day. Daily voiding frequency will be the voiding episodes per day averaged over 3 day bladder diary.
Change in Voiding Episodes Per Night1 month, 6 months, 12 months post-operativelyPatients will use 3 day bladder diaries to track voiding episodes per day, voiding episodes per night, pads per day, and urge incontinence episodes. Voiding episodes per night will be voiding episodes per night averaged over 3 day bladder diary.
Change in Pads Per Day1 month, 6 months, 12 months post-operativelyPatients will use 3 day bladder diaries to track voiding episodes per day, voiding episodes per night, pads per day, and urge incontinence episodes. Pads per day will be the pad count per day averaged over 3 day bladder diary.
Change in Urge Incontinence Episodes Per Day1 month, 6 months, 12 months post-operativelyPatients will use 3 day bladder diaries to track voiding episodes per day, voiding episodes per night, pad count per day, and urge incontinence episodes per day. Urge incontinence episodes will be the urge incontinence episodes per day averaged over 3 day bladder diary.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORDavid Sheyn, MD

UH Hospitals Cleveland Medical Center

Baseline characteristics

Characteristic
Age, Continuous69 years
STANDARD_DEVIATION 11
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
5 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
42 Participants
Sex: Female, Male
Female
25 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 250 / 25
other
Total, other adverse events
10 / 2511 / 25
serious
Total, serious adverse events
0 / 250 / 25

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 25, 2026