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Spinal Cord InjuriesPhase 2NCT01682603

Effect of Botulinum Toxin A on Detrusor Overactivity and Renal Function in Chronic Spinal Cord Injured Patients

A Phase 2 study testing Botulinum toxin A in people with Spinal Cord Injuries, run by Buddhist Tzu Chi General Hospital at 1 site in Taiwan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To investigate the clinical effect of detrusor botulinum toxin A (BoNT-A) injection on neurogenic detrusor overactivity (NDO) and renal function and to compare the difference of expressions of sensory receptors and nerve growth factor (NGF) in the bladder wall of patients respond and not respond to BoNT-A injections… Read more about this study

Who is it for?
Ages 19 to 65 years
Conditions the study is for
Spinal Cord Injuries
What is being tested?
Botulinum toxin A
Could I receive a placebo?
No, everyone receives an active treatment
How many people
34 participants
Where
1 siteTaiwan
Study dates
Sep 2012to Dec 2013
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 19 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adults with age of 19 years old or above
  • Patients with chronic suprasacral cord SCI will be enrolled.
  • Patients will be proven having NDO by videourodynamic study during the screening period.
  • They also receive 99mTc-DTPA renal scanning for GFR at baseline.
  • Patients with NDO induced urinary incontinence who have adequate hand function or have a care-giver available for CIC, and the baseline total GFR of less than 80 mL/min are main inclusion criteria

Who cannot join

  • Patients with detrusor underactivity and large bladder compliance, patients proven to have intrinsic sphincteric deficiency
  • Patients who have hypersensitivity to BTX-A or constituent ingredients of BTX-A.

Trial locations and contacts

1 site in 1 country.

Taiwan1 site
  • Buddhist Tzu Chi General Hospital

    Hualien City, 970

Other trials in Taiwan

About this study

Official title: Effect of Botulinum Toxin A on Detrusor Overactivity and Renal Function in Chronic Spinal Cord Injured Patients - Clinical Effects and Investigating Mechanism of Action

To investigate the clinical effect of detrusor botulinum toxin A (BoNT-A) injection on neurogenic detrusor overactivity (NDO) and renal function and to compare the difference of expressions of sensory receptors and nerve growth factor (NGF) in the bladder wall of patients respond and not respond to BoNT-A injections in chronic spinal cord injured (SCI) patients.

Read the detailed description

Study Procedure

A total of 30 patients with chronic suprasacral cord SCI will be enrolled in this study. All patients are more than 18 years old and have chronic suprasacral cord injury for more than 1 year. They have previously underwent an urodynamic study and have been proven having detrusor sphincter dyssynergia (DSD). The patients currently void by reflex, abdominal stimulation or clean intermittent catheterization (CIC), are free of indwelling catheter or cystostomy, and free of urinary tract infection (UTI) on their enrollment. During the screening period, a total glomerular filtration rate (GFR) should be less than 80 mL/min as measured by 99mTc-labelled diethylenetriamine pentaacetic acid (99mTc-DTPA) clearance renal scanning. Patients should also have adequate hand function or have a care-giver available for CIC. Other exclusion criteria include patients with detrusor underactivity and large bladder compliance, patients proven to have intrinsic sphincteric deficiency and patients who have hypersensitivity to botulinum toxin A (BTX-A) or constituent ingredients of BTX-A.

BTX-A injection will be performed in the operation room under light intravenous general anesthesia to prevent autonomic dysreflexia and hyperreflexia during cystoscopy. A total of 300U BTX-A (BOTOX, 100 U/vial, Allergan Co., Irvine, USA) dissolved into 30 mL normal saline will be injected into 30 sites of the bladder including lateral, posterior wall and dome. The injection sites are widely distributed to cover the whole bladder wall. A 14 Fr Foley catheter will be routinely inserted after BTX-A injection and patients will be discharged the next morning and followed up at out-patient clinic. All patients will be instructed to keep on CIC or abdominal stimulation as they previously performed. BTX-A injections will be repeated 6 months after the first treatment, then follow up to 24 months. Before each BTX-A injection a videourodynamic study and GFR test will be performed. Patients were also requested to report the severity of urinary incontinence by the mean daily incontinence episodes within three days, Urogenital Distress Inventory (UDI-6 Short Form), Incontinence Impact Questionnaire (IIQ-7), self assessed QoL index and the global satisfaction rate (graded as 0 to 3, indicating none, mild, moderate and very satisfied) to this treatment. The adverse events such as urinary tract infection, hematuria, difficult urination are also recorded.

This study should be approved by the Institutional Review Board and Ethics Committee of the hospital. Informed consent will be obtained before the screening and all patients are instructed about the possible complications related with BTX-A injection such as urinary retention, transient hematuria and subsequent urinary tract infection.

Patients will be classified as responders and non-responders according to their clinical presentation and urodynamic study results. Responders are considered if they become dry or reduction of incontinence episodes by 50% and have a decrease of detrusor pressure reduction by 50% of the baseline value, otherwise, they are considered as non-responders. The end-point is set at 6 months after the BTX-A injection.

There were two primary end-points: (1) the net change of the IIQ-7 and UDI-6 from baseline to 24 months, and (2) the net change of the GFR from baseline to 24 months. Secondary end-point efficacy measured the net change of the cystometric bladder capacity, bladder compliance, detrusor pressure during reflex voiding, end-filling pressure or detrusor leak-point pressure and postvoid residual volume from baseline to 24 months.

Three bladder biopsies using a small cystoscopic biopsy forceps will be performed in all patients. The biopsy will be performed at baseline and each time-point just prior to intravesical BTX-A injection. The bladder biopsy specimens will be sent to pathological department for H-E staining to exclude the possibility of carcinoma in situ, and also will be embedded in O.C.T. medium and stored at -80℃ refrigerator or liquid nitrogen tank for investigations. The bladder biopsies will be prepared for measurement of NGF messenger RNA (mRNA) and immunohistochemistry investigation of the expression of Transient Receptor Potential Vanilloid 1 (TRPV-1), purinergic receptor P2X, ligand-gated ion channel, 3 (P2X3) receptors at baseline and 6 months after each BTX-A injection, and the difference of these sensory protein expressions between responders and .non-responders to BTX-A injection.

Being tested
Botulinum toxin A
Keywords
Nerve growth factor, P2X3 receptor, Transient Receptor Potential Vanilloid 1 (TRPV-1) receptor, Bladder function, Glomerular filtration rate, Detrusor overactivity, Spinal cord injury
Medical subject headings
Spinal Cord Injuries, Hereditary Sensory and Autonomic Neuropathies, Urinary Bladder, Overactive

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Botulinum toxin ADrug

    Also called BoNT-A (BOTOX 300U)

    BoNT-A (BOTOX 300U)

Study groups in NCT01682603
Study groupRoleWhat they receive
Botulinum toxin AExperimentalBoNT-A (BOTOX 300U)
Receives: Drug: Botulinum toxin A

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Net Change of the Urinary Distress Inventory (UDI-6)

    Efficacy:

    Net change of the UrinaryDdistress Inventory (UDI-6) from baseline and 12 months.

    The UDI-6 is a 6-item short forms on a 4-point scale ranging from 0 "Not at all" to 3 "Greatly".

    The total UDI-6 score can therefore range from 0 to 18 (asymptomatic to very symptomatic).

    Safety:

    Systemic adverse events

    Measured: Baseline and 12 months

  2. Net Change of the Incontinence Impact Questionnaire (IIQ-7)

    Efficacy:

    Net change of the Incontinence Impact Questionnaire (IIQ-7) from baseline and 12 months.

    The IIQ-7 is a 7-item short forms on a 4-point scale ranging from 0 "Not at all" to 3 "Greatly".

    Total IIQ-7 score ranges = 0 to 21 The total IIQ-7 score can therefore range from 0 to 21 (asymptomatic to very symptomatic).

    Safety:

    Systemic adverse events

    Measured: Baseline and 12 months

  3. Net Change of the Quality of Life Index (QoL-I)

    Efficacy:

    Net change of the quality of life index (QoL-I) from baseline and 12 months. The QoL-I on a 7-point scale ranging from 0 "Delighted" to 6 "Terrible". The QoL-I ranges 0 to 6

    Safety:

    Systemic adverse events

    Measured: Baseline and 12 months

Secondary outcomes (6)
  1. Net Change of the Cystometric Bladder Capacity (CBC)

    Efficacy:

    Net change of the cystometric bladder capacity (CBC) from baseline and 12 months

    Safety:

    Systemic adverse events

    Measured: Baseline and 12 months

  2. Net Change of the Bladder Compliance

    Bladder compliance is the result of a mathematical calculation of the volume required for a unit rise of pressure measured during a cystometric filling.

    Bladder compliance is calculated by dividing the volume change by the change in bladder pressure (mL/cmH2O).

    Efficacy:

    Net change of the bladder compliance from baseline and 12 months

    Safety:

    Systemic adverse events

    Measured: Baseline and 12 months

  3. Net Change of the Maximum Flow Rate (Qmax)

    Efficacy:

    Net change of the maximum flow rate (Qmax) from baseline and 12 months

    Safety:

    Systemic adverse events

    Measured: Baseline and 12 months

  4. Net Change of the Void Volume

    Efficacy:

    Net change of the void volume from baseline and 12 months

    Safety:

    Systemic adverse events

    Measured: Baseline and 12 months

  5. Net Change of the Detrusor Pressure (Pdet)

    Efficacy:

    Net change of the detrusor pressure (Pdet) from baseline and 12 months

    Safety:

    Systemic adverse events

    Measured: Baseline and 12 months

  6. Net Change of the Postvoid Residual Volume (PVR)

    Efficacy:

    Net change of the postvoid residual volume (PVR) from baseline and 12 months

    Results:

    Botulinum toxin A injection have increased postvoid residual urine volume in patients treated for bladder dysfunction.

    Treat only patients who are willing and able to initiate catheterization post-treatment, if required, for urinary retention.

    Safety:

    Systemic adverse events

    Measured: Baseline and 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Sep 2012 (estimated)
  2. Study startSep 2012
  3. Primary completionDec 2013
  4. Study completionDec 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
34 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01682603
Sponsor's protocol ID
TCGHUROL005
Status last verified
Jun 2014
First submitted
7 Sep 2012
Last updated
20 Mar 2017
Data monitoring committee
No

Publications

  • Weld KJ, Graney MJ, Dmochowski RR. Clinical significance of detrusor sphincter dyssynergia type in patients with post-traumatic spinal cord injury. Urology. 2000 Oct 1;56(4):565-8. doi: 10.1016/s0090-4295(00)00761-5.

    PubMed 11018603
  • Ahmed HU, Shergill IS, Arya M, Shah PJ. Management of detrusor-external sphincter dyssynergia. Nat Clin Pract Urol. 2006 Jul;3(7):368-80. doi: 10.1038/ncpuro0521.

    PubMed 16835625
  • Weld KJ, Dmochowski RR. Association of level of injury and bladder behavior in patients with post-traumatic spinal cord injury. Urology. 2000 Apr;55(4):490-4. doi: 10.1016/s0090-4295(99)00553-1.

    PubMed 10736489
  • Linsenmeyer TA, Bagaria SP, Gendron B. The impact of urodynamic parameters on the upper tracts of spinal cord injured men who void reflexly. J Spinal Cord Med. 1998 Jan;21(1):15-20. doi: 10.1080/10790268.1998.11719505.

    PubMed 9541882
  • Ethans KD, Nance PW, Bard RJ, Casey AR, Schryvers OI. Efficacy and safety of tolterodine in people with neurogenic detrusor overactivity. J Spinal Cord Med. 2004;27(3):214-8. doi: 10.1080/10790268.2004.11753751.

    PubMed 15478523
  • Schurch B, Stohrer M, Kramer G, Schmid DM, Gaul G, Hauri D. Botulinum-A toxin for treating detrusor hyperreflexia in spinal cord injured patients: a new alternative to anticholinergic drugs? Preliminary results. J Urol. 2000 Sep;164(3 Pt 1):692-7. doi: 10.1097/00005392-200009010-00018.

    PubMed 10953127
  • Schulte-Baukloh H, Schobert J, Stolze T, Sturzebecher B, Weiss C, Knispel HH. Efficacy of botulinum-A toxin bladder injections for the treatment of neurogenic detrusor overactivity in multiple sclerosis patients: an objective and subjective analysis. Neurourol Urodyn. 2006;25(2):110-5. doi: 10.1002/nau.20153.

    PubMed 16470519
  • Schurch B, Hauri D, Rodic B, Curt A, Meyer M, Rossier AB. Botulinum-A toxin as a treatment of detrusor-sphincter dyssynergia: a prospective study in 24 spinal cord injury patients. J Urol. 1996 Mar;155(3):1023-9. doi: 10.1016/s0022-5347(01)66376-6.

    PubMed 8583552
  • Kuo HC. Botulinum A toxin urethral injection for the treatment of lower urinary tract dysfunction. J Urol. 2003 Nov;170(5):1908-12. doi: 10.1097/01.ju.0000091281.50081.f0.

    PubMed 14532805
  • Reitz A, Stohrer M, Kramer G, Del Popolo G, Chartier-Kastler E, Pannek J, Burgdorfer H, Gocking K, Madersbacher H, Schumacher S, Richter R, von Tobel J, Schurch B. European experience of 200 cases treated with botulinum-A toxin injections into the detrusor muscle for urinary incontinence due to neurogenic detrusor overactivity. Eur Urol. 2004 Apr;45(4):510-5. doi: 10.1016/j.eururo.2003.12.004.

    PubMed 15041117
  • Kuo HC. Therapeutic effects of suburothelial injection of botulinum a toxin for neurogenic detrusor overactivity due to chronic cerebrovascular accident and spinal cord lesions. Urology. 2006 Feb;67(2):232-6. doi: 10.1016/j.urology.2005.08.016. Epub 2006 Jan 25.

    PubMed 16442605
  • Schulte-Baukloh H, Weiss C, Stolze T, Herholz J, Sturzebecher B, Miller K, Knispel HH. Botulinum-A toxin detrusor and sphincter injection in treatment of overactive bladder syndrome: objective outcome and patient satisfaction. Eur Urol. 2005 Dec;48(6):984-90; discussion 990. doi: 10.1016/j.eururo.2005.06.021. Epub 2005 Jul 18.

    PubMed 16126328
  • Schurch B, de Seze M, Denys P, Chartier-Kastler E, Haab F, Everaert K, Plante P, Perrouin-Verbe B, Kumar C, Fraczek S, Brin MF; Botox Detrusor Hyperreflexia Study Team. Botulinum toxin type a is a safe and effective treatment for neurogenic urinary incontinence: results of a single treatment, randomized, placebo controlled 6-month study. J Urol. 2005 Jul;174(1):196-200. doi: 10.1097/01.ju.0000162035.73977.1c.

    PubMed 15947626
  • Grosse J, Kramer G, Stohrer M. Success of repeat detrusor injections of botulinum a toxin in patients with severe neurogenic detrusor overactivity and incontinence. Eur Urol. 2005 May;47(5):653-9. doi: 10.1016/j.eururo.2004.11.009. Epub 2005 Jan 15.

    PubMed 15826758
  • Yiangou Y, Facer P, Ford A, Brady C, Wiseman O, Fowler CJ, Anand P. Capsaicin receptor VR1 and ATP-gated ion channel P2X3 in human urinary bladder. BJU Int. 2001 Jun;87(9):774-9. doi: 10.1046/j.1464-410x.2001.02190.x.

    PubMed 11412212

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Botulinum toxin A in people with Spinal Cord Injuries, run by Buddhist Tzu Chi General Hospital at 1 site in Taiwan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 Mar 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 23 Jul 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Net Change of the Urinary Distress Inventory (UDI-6) (time frame: Baseline and 12 months). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01682603, which also lists 49 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Mar 2017.

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