Clinical Study to Investigate the Efficacy and Safety of Two Dose Levels of NT 201 Versus Placebo in Treating Chronic Troublesome Sialorrhea in Various Neurological Conditions
SIAXI
Prospective, Randomized, Double-blind, Placebo-controlled, Parallel-group Multicenter Study, With an Extension Period of Dose-blinded Active Treatment, to Investigate the Efficacy and Safety of Two Dose Levels of NT 201 in Treating Chronic Troublesome Sialorrhea in Various Neurological Conditions
2 other identifiers
interventional
184
2 countries
31
Brief Summary
The objective of this study is to investigate the efficacy and safety of two different dose levels of NT 201 (75 U or 100 U per cycle), compared with placebo, in reducing the salivary flow rate, and the severity and frequency of chronic troublesome sialorrhea that occurs as a result of various neurological conditions in adult subjects.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3
Started Apr 2014
Typical duration for phase_3
31 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 18, 2014
CompletedFirst Posted
Study publicly available on registry
March 19, 2014
CompletedStudy Start
First participant enrolled
April 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
November 1, 2016
CompletedResults Posted
Study results publicly available
February 15, 2018
CompletedMarch 27, 2018
January 1, 2018
1.3 years
March 18, 2014
January 15, 2018
February 27, 2018
Conditions
Outcome Measures
Primary Outcomes (2)
MP: Change From Baseline in Unstimulated Salivary Flow (uSFR) Rate at Week 4
uSFR was assessed by weighing of dental rolls soaked with saliva over 5 minutes and then procedure was repeated after 30 minutes and the average of the 2 results for flow rate was calculated.
Baseline and Week 4
MP: Participant's Global Impression of Change Scale (GICS) at Week 4
The GICS was used to measure the impression of change due to treatment. The response option was a common 7-point Likert scale that ranged from -3 = very much worse to +3 = very much improved and was applicable for participant and caregiver. If the participant was not able to answer then carer's rating was to be recorded instead of participant's rating and the participant's rating was left blank.
Week 4
Secondary Outcomes (2)
MP: Change From Baseline in Unstimulated Salivary Flow (uSFR) Rate at Week 8 and 12
Baseline, Week 8 and 12
MP: Global Impression of Change Scale (GICS) at Week 1, 2, 8 and 12
Week 1, 2, 8, and 12
Study Arms (3)
IncobotulinumtoxinA (Xeomin) (100 Units)
EXPERIMENTAL* Main period (1 treatment cycle): Subjects to receive 100 Units. * Extension period (3 treatment cycles): Subjects to receive 100 Units per treatment cycle. * Mode of administration: Four injections per treatment cycle (parotid and submandibular glands, bilateral)
IncobotulinumtoxinA (Xeomin) (75 Units)
EXPERIMENTAL* Main period (1 treatment cycle): Subjects to receive 75 Units. * Extension period (3 treatment cycles): Subjects to receive 75 Units per treatment cycle. * Mode of administration: Four injections per treatment cycle (parotid and submandibular glands, bilateral)
Placebo
PLACEBO COMPARATOR* Main period (1 treatment cycle): Subjects to receive placebo injection. * Extension period (3 treatment cycles): Subjects will be randomized to receive either 75 or 100 Units IncobotulinumtoxinA per treatment cycle. * Mode of administration: Four injections per treatment cycle (parotid and submandibular glands, bilateral)
Interventions
Active ingredient: Clostridium Botulinum neurotoxin Type A free from complexing proteins. Solution for injection prepared by reconstitution of powder with 0.9% Sodium Chloride (NaCl).
Active ingredient: Clostridium Botulinum neurotoxin Type A free from complexing proteins. Solution for injection prepared by reconstitution of powder with 0.9% Sodium Chloride (NaCl).
Solution for injection prepared by reconstitution of powder with 0.9% Sodium Chloride (NaCl).
Eligibility Criteria
You may qualify if:
- Documented diagnosis of the basic neurological condition associated with sialorrhea (as above, (i), (ii) or (iii); with onset at least 6 months before screening).
- Chronic troublesome sialorrhea related to parkinsonism or stroke or traumatic brain injury (for at least 3 months) at screening, defined as the presence of all of the following, at screening and at baseline and for at least the 3 months before screening (where retrospective response to questionnaires is impossible, a statement of equivalent severity will suffice):
- A Drooling Severity and Frequency Scale \[DSFS\] sum score of at least 6 points and
- A score of at least 2 points for each item of the DSFS and
- A score of at least 3 points on the modified Radboud Oral Motor Inventory for Parkinson's Disease \[mROMP\], Section 'III Drooling', Item A).
- A score of at most 2 points on the mROMP Section 'II Swallowing Symptoms' Item A) and a score of at most 3 points on Item C), at screening and at baseline.
You may not qualify if:
- Non-neurological secondary causes of sialorrhea.
- Unstable concomitant medication influencing sialorrhea (such as anticholinergics for the treatment of parkinsonism; dosages of these medications must have been stable for at least 4 weeks before study entry, i.e. screening, and must be planned to remain stable during the course of the study.
- Recent (i.e., four weeks) drug treatment for sialorrhea.
- History of recurrent aspiration pneumonia.
- Extremely poor dental/oral condition as assessed by a qualified dentist.
- Recent (i.e., one year for sialorrhea, 14 weeks for other indications) treatment with - or known hypersensitivity to - Botulinum toxin, or known hypersensitivity to any ingredient of the study preparation.
- Recent (i.e., four weeks) changes in anti-parkinsonian medication.
- Previous or planned surgery or irradiation to control sialorrhea.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (31)
Merz investigational site #049172
Bonn, 53105, Germany
Merz Investigational Site #049335
Gera, 07551, Germany
Merz Investigational Site #049337
Haag i.OB, 83527, Germany
Merz Investigational Site #049072
Munich, 80804, Germany
Merz Investigational Site #049148
Munich, 81675, Germany
Merz Investigational Site #049300
Nümbrecht, 51588, Germany
Merz Investigational Site #049303
Regensburg, 93053, Germany
Merz investigational site #049348
Stadtroda, 07646, Germany
Merz Investigational Site #049143
Ulm, 89081, Germany
Merz Investigational Site #049333
Wolfach, 77709, Germany
Merz Investigational Site #049302
Würzburg, 97080, Germany
Merz investigational site #048068
Bydgoszcz, 85-015, Poland
Merz Investigational Site #048088
Bydgoszcz, 85-080, Poland
Merz Investigational Site #048029
Gdansk, 80-254, Poland
Merz investigational site #048074
Gdansk, 80-546, Poland
Merz investigational site #048078
Jaworzno, 43-600, Poland
Merz investigational site #048076
Katowice, 40-097, Poland
Merz investigational site #048077
Katowice, 40-097, Poland
Merz investigational Site #048067
Kielce, 25-103, Poland
Merz investigational site #048059
Krakow, 30-539, Poland
Merz investigational site #048031
Krakow, 31-505, Poland
Merz Investigational Site #048087
Krakow, 31-530, Poland
Merz Investigational Site #048022
Lodz, 90-130, Poland
Merz investigational site #048070
Lublin, 20-718, Poland
Merz investigational site #048085
Lublin, 30-539, Poland
Merz investigational site #048072
Luboń, 62-030, Poland
Merz Investigational Site #048075
Sandomierz, 27-600, Poland
Merz Investigational Site #048086
Torun, 87-100, Poland
Merz investigational site #048065
Warsaw, 00-453, Poland
Merz investigational site #048056
Warsaw, 02-097, Poland
Merz investigational site #048064
Warsaw, 03-242, Poland
Related Publications (2)
Jost WH, Friedman A, Michel O, Oehlwein C, Slawek J, Bogucki A, Ochudlo S, Banach M, Pagan F, Flatau-Baque B, Dorsch U, Csikos J, Blitzer A. Long-term incobotulinumtoxinA treatment for chronic sialorrhea: Efficacy and safety over 64 weeks. Parkinsonism Relat Disord. 2020 Jan;70:23-30. doi: 10.1016/j.parkreldis.2019.11.024. Epub 2019 Nov 26.
PMID: 31794936DERIVEDJost WH, Friedman A, Michel O, Oehlwein C, Slawek J, Bogucki A, Ochudlo S, Banach M, Pagan F, Flatau-Baque B, Csikos J, Cairney CJ, Blitzer A. SIAXI: Placebo-controlled, randomized, double-blind study of incobotulinumtoxinA for sialorrhea. Neurology. 2019 Apr 23;92(17):e1982-e1991. doi: 10.1212/WNL.0000000000007368. Epub 2019 Mar 27.
PMID: 30918101DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Public Disclosure Manager
- Organization
- Merz Pharmaceuticals GmbH
Study Officials
- STUDY DIRECTOR
Merz Medical Expert
Merz Pharmaceuticals GmbH
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 18, 2014
First Posted
March 19, 2014
Study Start
April 1, 2014
Primary Completion
August 1, 2015
Study Completion
November 1, 2016
Last Updated
March 27, 2018
Results First Posted
February 15, 2018
Record last verified: 2018-01