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MYOBLOC

Phase 3

Sialorrhea | Small molecule | Other |Supernus Pharmaceuticals, Inc.|Last Updated: Jul 13, 2021

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials2
Total Enrollment374
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT02610868Open-Label and Single-Arm Study of MYOBLOC® in the Treatment of Troublesome Sialorrhea in AdultsPHASE3 COMPLETED 187Oct 1, 2015Jun 1, 2017Jul 13, 202135 United States, Belarus +1
NCT01994109Efficacy and Safety Study of MYOBLOC® Followed by Open-Label Multiple-Treatment With MYOBLOC® in the Treatment of Troublesome Sialorrhea in Adult SubjectsPHASE3 COMPLETED 187Nov 1, 2013Jan 1, 2017Jul 13, 202134 United States, Russia +1
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Study Endpoints
Primary Endpoints
Occurrence, Seriousness, Severity, and Causality Assessment of Treatment Emergent Adverse Events (TEAE)
Visits at Weeks 4 and 13 combined for each TS; including Visit at Week 8 for TS1

TEAEs Related to Study Medication include TEAEs classified as Possibly, Probably and Definitely Related. Treatment Session (TS)

Occurrence of Adverse Events of Special Interest (AESI)
Visits at Weeks 4 and 13 combined for each TS; including Visit at Week 8 for TS1

Treatment Session (TS) AESI includes: Aspiration, Aspirational pneumonia, Choking and Dysphagia.

Columbia Suicide Rating Scale (C-SSRS): Suicidal Ideation, Behavior Scores and Intensity Scores
Baseline (Day 1) of each TS to the following: TS1 Visits at Weeks 4, 8, 13; TS2-4 Visits at Weeks 4, 13

Participants Analyzed does not match the Participant Flow because one participant discontinued prior to the first post-injection visit. Per protocol participants were only required to complete two treatment sessions with a maximum of 4 treatment sessions allowed. All subjects received 3500 U doses except for 13 subjects who had decreased doses at Treatment Session 2 and/or 3 (2500 U to 3000 U).

Occurrence of Dental Adverse Events
Visits at Weeks 4 and 13 combined for each TS; including Visit at Week 8 for TS1

Treatment Session (TS)

Unstimulated Salivary Flow Rate (USFR) at Week 4 Post-injection Visit (Part A)
4 Weeks

Change weight of expectorated saliva at a Week 4 post-injection visit.

Clinical Global Impression Change (CGI-C) at Week 4 Post-injection (Part A)
4 weeks

CGI-C was assessed on a 7-point scale ranging from "very much improved" to "very much worse" with 1 assigned to "very much improved" and 7 assigned to "very much worse"; ranging from a minimum score of 1 and a maximum score of 7.

Secondary Endpoints
Change From Baseline in Unstimulated Salivary Flow Rate (USFR): Treatment Sessions 1-4
Baseline (Day 1) of each TS to the following: TS1 Visits at Weeks 4, 8, 13; TS2-4 Visits at Weeks 4, 13
Change From Baseline in Clinical Global Impression of Severity (CGI-S)
Baseline (Day 1) of each TS to the following: TS1 Visits at Weeks 4, 8, 13; TS2-4 Visits at Weeks 4, 13
Clinical Global Impression of Change (CGI-C)
TS1 Visits at Weeks 4, 8, 13; TS2-4 Visits at Weeks 4, 13
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
MYOBLOC InjectionEXPERIMENTALAfter a screening period (up to 21 days), subjects who satisfy all eligibility criteria may receive single dose injections over the course of 1 year.
MYOBLOC 2500 UACTIVE_COMPARATORSubjects will receive specified dose of MYOBLOC
MYOBLOC 3500 UACTIVE_COMPARATORSubjects will receive specified dose of MYOBLOC
PlaceboPLACEBO_COMPARATORSubjects will receive volume matched Placebo
Interventions
NameTypeDescription
MYOBLOCDRUGAfter a screening period (up to 21 days), subjects who satisfy all eligibility criteria may receive single dose injections of 3,500 Units of MYOBLOC every 13 weeks (±2 weeks) for a total of 4 treatments via injections into the submandibular and parotid glands. Subjects will undergo safety and effectiveness assessments at Weeks 4, 8, 13, 17, 26, 30, 39, 43, and 52, and telephone follow up will occur at Weeks 21, 34, and 47
PLACEBOOTHER -
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Eligibility Criteria
Age Range18 Years — 85 Years
SexALL
Healthy VolunteersNo
Study Sites35

Inclusion Criteria: * Seeking treatment for troublesome sialorrhea for at least 3 months that is occurring secondary to any disorder or related to any cause, including, but not limited to, Parkinson's Disease (PD), adult cerebral palsy, amyotrophic lateral sclerosis (ALS), stroke, traumatic brain i...

Countries:United StatesBelarusUkraineRussia
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