Trial Outcomes & Findings for Flexible-Dose Trial in Early Parkinson's Disease (PD) (NCT NCT04223193)

NCT ID: NCT04223193

Last Updated: 2025-11-21

Results Overview

The Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) rating tool was used to follow longitudinal course of Parkinson's Disease. It was made up of 4 parts: Part 1: Non-motor aspects of experiences of daily living (13 items. Score range: 0-52); Part 2: Motor aspects of experiences of daily living (13 items. Score range: 0-52); Part 3: Motor examination (18 items. Score range: 0-132); Part 4: Motor complications (6 items. Score range: 0-24. Part 4 was not collected in this trial). Each item has 0-4 rating on scale from 0 (normal) to 4 (severe). Higher values represent a worse outcome. A negative change from baseline represents an improvement in motor function. Parts 2 and 3 combined is the sum of Part 2 score and Part 3 score at each assessment time for each participant. The combined score assesses 31 items with score range: 0-184.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

304 participants

Primary outcome timeframe

Week 26

Results posted on

2025-11-21

Participant Flow

In this Phase 3, Double-Blind study, a total of 304 participants with Parkinson's Disease (PD) were randomized in a 1:1 ratio to either Placebo, or tavapadon 5 mg to 15 mg once daily (QD) for 27 Weeks.

Participant milestones

Participant milestones
Measure
Placebo
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Overall Study
STARTED
153
151
Overall Study
COMPLETED
130
94
Overall Study
NOT COMPLETED
23
57

Reasons for withdrawal

Reasons for withdrawal
Measure
Placebo
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Overall Study
Adverse Event
6
36
Overall Study
Lack of Efficacy
2
2
Overall Study
Lost to Follow-up
1
1
Overall Study
Failure to Meet Continuation Criteria
1
0
Overall Study
Treatment with Prohibited Concomitant Medications
3
0
Overall Study
Non-Compliance with Study Drug
0
1
Overall Study
Physician Decision
0
1
Overall Study
Protocol Violation
1
1
Overall Study
Site Terminated by Sponsor
1
3
Overall Study
Withdrawal by Subject
5
6
Overall Study
Other
3
6

Baseline Characteristics

Flexible-Dose Trial in Early Parkinson's Disease (PD)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo
n=153 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=151 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Total
n=304 Participants
Total of all reporting groups
Age, Continuous
62.6 years
STANDARD_DEVIATION 9.43 • n=68 Participants
63.1 years
STANDARD_DEVIATION 8.98 • n=76 Participants
62.9 years
STANDARD_DEVIATION 9.20 • n=48 Participants
Sex: Female, Male
Female
68 Participants
n=68 Participants
67 Participants
n=76 Participants
135 Participants
n=48 Participants
Sex: Female, Male
Male
85 Participants
n=68 Participants
84 Participants
n=76 Participants
169 Participants
n=48 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
11 Participants
n=68 Participants
5 Participants
n=76 Participants
16 Participants
n=48 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
137 Participants
n=68 Participants
141 Participants
n=76 Participants
278 Participants
n=48 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
5 Participants
n=68 Participants
5 Participants
n=76 Participants
10 Participants
n=48 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=68 Participants
0 Participants
n=76 Participants
1 Participants
n=48 Participants
Race (NIH/OMB)
Asian
15 Participants
n=68 Participants
17 Participants
n=76 Participants
32 Participants
n=48 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=68 Participants
0 Participants
n=76 Participants
0 Participants
n=48 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=68 Participants
0 Participants
n=76 Participants
2 Participants
n=48 Participants
Race (NIH/OMB)
White
134 Participants
n=68 Participants
134 Participants
n=76 Participants
268 Participants
n=48 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=68 Participants
0 Participants
n=76 Participants
0 Participants
n=48 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=68 Participants
0 Participants
n=76 Participants
1 Participants
n=48 Participants
MDS-UPDRS Score at Baseline (Parts II and III Combined)
30.0 units on a scale
STANDARD_DEVIATION 11.11 • n=68 Participants
31.1 units on a scale
STANDARD_DEVIATION 11.21 • n=76 Participants
30.5 units on a scale
STANDARD_DEVIATION 11.16 • n=48 Participants

PRIMARY outcome

Timeframe: Week 26

Population: mITT Population includes subjects who receive at least 1 dose of study drug and have both a baseline and at least 1 postbaseline MDS-UPDRS assessment, and had available data for analysis.

The Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) rating tool was used to follow longitudinal course of Parkinson's Disease. It was made up of 4 parts: Part 1: Non-motor aspects of experiences of daily living (13 items. Score range: 0-52); Part 2: Motor aspects of experiences of daily living (13 items. Score range: 0-52); Part 3: Motor examination (18 items. Score range: 0-132); Part 4: Motor complications (6 items. Score range: 0-24. Part 4 was not collected in this trial). Each item has 0-4 rating on scale from 0 (normal) to 4 (severe). Higher values represent a worse outcome. A negative change from baseline represents an improvement in motor function. Parts 2 and 3 combined is the sum of Part 2 score and Part 3 score at each assessment time for each participant. The combined score assesses 31 items with score range: 0-184.

Outcome measures

Outcome measures
Measure
Placebo
n=133 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=99 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Change From Baseline in the Movement Disorder Society - Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Parts II and III Combined Score
-1.2 score on a scale
Standard Error 0.89
-10.3 score on a scale
Standard Error 0.99

SECONDARY outcome

Timeframe: Week 26

Population: mITT Population includes subjects who receive at least 1 dose of study drug and have both a baseline and at least 1 postbaseline MDS-UPDRS assessment, and had available data for analysis.

The Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) rating tool was used to follow longitudinal course of Parkinson's Disease. It was made up of 4 parts: Part 1: Non-motor aspects of experiences of daily living (13 items. Score range: 0-52); Part 2: Motor aspects of experiences of daily living (13 items. Score range: 0-52); Part 3: Motor examination (18 items. Score range: 0-132); Part 4: Motor complications (6 items. Score range: 0-24. Part 4 was not collected in this trial). Each item has 0-4 rating on scale from 0 (normal) to 4 (severe). Higher values represent a worse outcome. A negative change from baseline represents an improvement in motor function.

Outcome measures

Outcome measures
Measure
Placebo
n=134 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=99 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Change From Baseline in the MDS-UPDRS Part II Score
0.0 score on a scale
Standard Error 0.30
-1.5 score on a scale
Standard Error 0.33

SECONDARY outcome

Timeframe: Week 26

Population: mITT Population includes subjects who receive at least 1 dose of study drug and have both a baseline and at least 1 postbaseline PGIC assessment, and had available data for analysis.

The Patient Global Impression of Change (PGIC) is a 7-point response scale. The participant response to the question, "Compared to your condition at the beginning of treatment, how much has your condition changed?" was assessed. Scores ranged from 1-7 on a scale of 1 (very much improved) to 7 (very much worse). Higher values represent a worse outcome.

Outcome measures

Outcome measures
Measure
Placebo
n=134 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=99 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Percentage of Responders With "Much Improved" or "Very Much Improved" on Participant Global Impression of Change (PGIC)
25 Participants
46 Participants

SECONDARY outcome

Timeframe: Week 5, 8, 11, 14, 18, 22, 26, and 27

Population: mITT Population

The Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) rating tool was used to follow longitudinal course of Parkinson's Disease. It was made up of 4 parts: Part 1: Non-motor aspects of experiences of daily living (13 items. Score range: 0-52); Part 2: Motor aspects of experiences of daily living (13 items. Score range: 0-52); Part 3: Motor examination (18 items. Score range: 0-132); Part 4: Motor complications (6 items. Score range: 0-24. Part 4 was not collected in this trial). Each item has 0-4 rating on scale from 0 (normal) to 4 (severe). Higher values represent a worse outcome. A negative change from baseline represents an improvement in motor function. Parts 2 and 3 combined is the sum of Part 2 score and Part 3 score at each assessment time for each participant. The combined score assesses 31 items with score range: 0-184.

Outcome measures

Outcome measures
Measure
Placebo
n=151 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=150 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Change From Baseline in the MDS-UPDRS Parts II and III Combined Score
Week 5
-2.1 score on a scale
Standard Error 0.58
-5.5 score on a scale
Standard Error 0.63
Change From Baseline in the MDS-UPDRS Parts II and III Combined Score
Week 8
-2.4 score on a scale
Standard Error 0.64
-8.5 score on a scale
Standard Error 0.69
Change From Baseline in the MDS-UPDRS Parts II and III Combined Score
Week 11
-2.3 score on a scale
Standard Error 0.71
-9.5 score on a scale
Standard Error 0.77
Change From Baseline in the MDS-UPDRS Parts II and III Combined Score
Week 14
-2.2 score on a scale
Standard Error 0.76
-10.3 score on a scale
Standard Error 0.84
Change From Baseline in the MDS-UPDRS Parts II and III Combined Score
Week 18
-2.2 score on a scale
Standard Error 0.85
-10.0 score on a scale
Standard Error 0.93
Change From Baseline in the MDS-UPDRS Parts II and III Combined Score
Week 22
-1.3 score on a scale
Standard Error 0.82
-10.1 score on a scale
Standard Error 0.92
Change From Baseline in the MDS-UPDRS Parts II and III Combined Score
Week 26
-1.2 score on a scale
Standard Error 0.89
-10.3 score on a scale
Standard Error 0.99
Change From Baseline in the MDS-UPDRS Parts II and III Combined Score
Week 27
-1.2 score on a scale
Standard Error 0.89
-10.4 score on a scale
Standard Error 0.99

SECONDARY outcome

Timeframe: Week 5, 8, 11, 14, 18, 22, 26, and 27

Population: mITT Population

The Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) rating tool was used to follow longitudinal course of Parkinson's Disease. It was made up of 4 parts: Part 1: Non-motor aspects of experiences of daily living (13 items. Score range: 0-52); Part 2: Motor aspects of experiences of daily living (13 items. Score range: 0-52); Part 3: Motor examination (18 items. Score range: 0-132); Part 4: Motor complications (6 items. Score range: 0-24. Part 4 was not collected in this trial). Each item has 0-4 rating on scale from 0 (normal) to 4 (severe). Higher values represent a worse outcome. A negative change from baseline represents an improvement in motor function. Parts 1, 2, and 3 combined is the sum of Part 1, Part 2, and Part 3 scores at each assessment time for each participant. The combined score assesses 44 items with score range: 0-236.

Outcome measures

Outcome measures
Measure
Placebo
n=151 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=150 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Change From Baseline in the MDS-UPDRS Parts I, II and III Combined Score
Week 5
-2.7 score on a scale
Standard Error 0.67
-5.2 score on a scale
Standard Error 0.72
Change From Baseline in the MDS-UPDRS Parts I, II and III Combined Score
Week 8
-3.2 score on a scale
Standard Error 0.73
-8.3 score on a scale
Standard Error 0.79
Change From Baseline in the MDS-UPDRS Parts I, II and III Combined Score
Week 11
-3.2 score on a scale
Standard Error 0.82
-9.3 score on a scale
Standard Error 0.89
Change From Baseline in the MDS-UPDRS Parts I, II and III Combined Score
Week 14
-3.0 score on a scale
Standard Error 0.88
-10.4 score on a scale
Standard Error 0.96
Change From Baseline in the MDS-UPDRS Parts I, II and III Combined Score
Week 18
-2.9 score on a scale
Standard Error 0.96
-10.1 score on a scale
Standard Error 1.05
Change From Baseline in the MDS-UPDRS Parts I, II and III Combined Score
Week 22
-1.8 score on a scale
Standard Error 0.96
-10.1 score on a scale
Standard Error 1.07
Change From Baseline in the MDS-UPDRS Parts I, II and III Combined Score
Week 26
-1.6 score on a scale
Standard Error 1.03
-9.9 score on a scale
Standard Error 1.15
Change From Baseline in the MDS-UPDRS Parts I, II and III Combined Score
Week 27
-1.8 score on a scale
Standard Error 1.03
-10.2 score on a scale
Standard Error 1.14

SECONDARY outcome

Timeframe: Week 5, 8, 11, 14, 18, 22, 26, and 27

Population: mITT Population

The Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) rating tool was used to follow longitudinal course of Parkinson's Disease. It was made up of 4 parts: Part 1: Non-motor aspects of experiences of daily living (13 items. Score range: 0-52); Part 2: Motor aspects of experiences of daily living (13 items. Score range: 0-52); Part 3: Motor examination (18 items. Score range: 0-132); Part 4: Motor complications (6 items. Score range: 0-24. Part 4 was not collected in this trial). Each item has 0-4 rating on scale from 0 (normal) to 4 (severe). Higher values represent a worse outcome. A negative change from baseline represents an improvement in motor function.

Outcome measures

Outcome measures
Measure
Placebo
n=151 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=150 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part I: Week 11
-0.8 score on a scale
Standard Error 0.25
0.2 score on a scale
Standard Error 0.27
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part I: Week 22
-0.5 score on a scale
Standard Error 0.27
0.0 score on a scale
Standard Error 0.30
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part I: Week 26
-0.4 score on a scale
Standard Error 0.29
0.3 score on a scale
Standard Error 0.32
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part I: Week 5
-0.6 score on a scale
Standard Error 0.23
0.4 score on a scale
Standard Error 0.25
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part I: Week 8
-0.8 score on a scale
Standard Error 0.25
0.2 score on a scale
Standard Error 0.27
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part I: Week 14
-0.7 score on a scale
Standard Error 0.25
-0.1 score on a scale
Standard Error 0.27
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part I: Week 18
-0.7 score on a scale
Standard Error 0.25
-0.2 score on a scale
Standard Error 0.27
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part I: Week 27
-0.6 score on a scale
Standard Error 0.28
0.2 score on a scale
Standard Error 0.31
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part II: Week 5
-0.6 score on a scale
Standard Error 0.22
-1.0 score on a scale
Standard Error 0.24
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part II: Week 8
-0.4 score on a scale
Standard Error 0.23
-1.5 score on a scale
Standard Error 0.25
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part II: Week 11
-0.2 score on a scale
Standard Error 0.26
-1.4 score on a scale
Standard Error 0.28
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part II: Week 14
-0.4 score on a scale
Standard Error 0.26
-1.7 score on a scale
Standard Error 0.29
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part II: Week 18
-0.3 score on a scale
Standard Error 0.27
-1.5 score on a scale
Standard Error 0.30
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part II: Week 22
0.2 score on a scale
Standard Error 0.29
-1.4 score on a scale
Standard Error 0.32
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part II: Week 26
0.0 score on a scale
Standard Error 0.30
-1.5 score on a scale
Standard Error 0.33
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part II: Week 27
0.0 score on a scale
Standard Error 0.30
-1.3 score on a scale
Standard Error 0.34
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part III: Week 5
-1.5 score on a scale
Standard Error 0.48
-4.5 score on a scale
Standard Error 0.52
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part III: Week 8
-2.0 score on a scale
Standard Error 0.53
-7.0 score on a scale
Standard Error 0.58
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part III: Week 11
-2.2 score on a scale
Standard Error 0.58
-8.1 score on a scale
Standard Error 0.64
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part III: Week 14
-1.9 score on a scale
Standard Error 0.63
-8.6 score on a scale
Standard Error 0.69
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part III: Week 18
-1.9 score on a scale
Standard Error 0.69
-8.4 score on a scale
Standard Error 0.77
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part III: Week 22
-1.5 score on a scale
Standard Error 0.68
-8.7 score on a scale
Standard Error 0.76
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part III: Week 26
-1.2 score on a scale
Standard Error 0.71
-8.9 score on a scale
Standard Error 0.80
Change From Baseline in the MDS-UPDRS Parts I, II and III Individual Score
Part III: Week 27
-1.2 score on a scale
Standard Error 0.71
-9.0 score on a scale
Standard Error 0.80

SECONDARY outcome

Timeframe: Week 5, 8, 11, 14, 18, 22, 26, and 27

Population: mITT Population

The Global Impression - Severity of Illness (CGI-S) Score is a clinician's impression of a participant's severity of illness on a 7-point scale. Scores ranged from 1-7 on a scale of 1 (normal) to 7 (among the most extremely ill participants). Higher values represent a worse outcome.

Outcome measures

Outcome measures
Measure
Placebo
n=151 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=150 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Change From Baseline in the Clinical Global Impression - Severity of Illness (CGI-S) Score
Week 14
0.0 score on a scale
Standard Error 0.05
-0.3 score on a scale
Standard Error 0.05
Change From Baseline in the Clinical Global Impression - Severity of Illness (CGI-S) Score
Week 18
0.0 score on a scale
Standard Error 0.05
-0.3 score on a scale
Standard Error 0.06
Change From Baseline in the Clinical Global Impression - Severity of Illness (CGI-S) Score
Week 22
0.0 score on a scale
Standard Error 0.05
-0.4 score on a scale
Standard Error 0.06
Change From Baseline in the Clinical Global Impression - Severity of Illness (CGI-S) Score
Week 26
0.0 score on a scale
Standard Error 0.06
-0.4 score on a scale
Standard Error 0.06
Change From Baseline in the Clinical Global Impression - Severity of Illness (CGI-S) Score
Week 27
0.0 score on a scale
Standard Error 0.05
-0.3 score on a scale
Standard Error 0.06
Change From Baseline in the Clinical Global Impression - Severity of Illness (CGI-S) Score
Week 11
0.0 score on a scale
Standard Error 0.05
-0.3 score on a scale
Standard Error 0.06
Change From Baseline in the Clinical Global Impression - Severity of Illness (CGI-S) Score
Week 5
0.0 score on a scale
Standard Error 0.04
-0.2 score on a scale
Standard Error 0.05
Change From Baseline in the Clinical Global Impression - Severity of Illness (CGI-S) Score
Week 8
0.0 score on a scale
Standard Error 0.05
-0.2 score on a scale
Standard Error 0.05

SECONDARY outcome

Timeframe: Week 5, 8, 11, 14, 18, 22, 26, and 27

Population: mITT Population

The Clinical Global Impression - Improvement (CGI-I) Score is a clinician's impression of how much the participant's illness has improved or worsened relative to the baseline on a 7-point scale. Scores ranged from 1-7 on a scale of 1 (very much improved) to 7 (very much worse). Higher values represent a worse outcome.

Outcome measures

Outcome measures
Measure
Placebo
n=151 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=150 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Clinical Global Impression - Improvement (CGI-I) Score
Week 5
3.6 units on a scale
Standard Error 0.06
3.3 units on a scale
Standard Error 0.07
Clinical Global Impression - Improvement (CGI-I) Score
Week 8
3.5 units on a scale
Standard Error 0.07
3.1 units on a scale
Standard Error 0.08
Clinical Global Impression - Improvement (CGI-I) Score
Week 14
3.6 units on a scale
Standard Error 0.08
2.9 units on a scale
Standard Error 0.09
Clinical Global Impression - Improvement (CGI-I) Score
Week 18
3.7 units on a scale
Standard Error 0.09
2.8 units on a scale
Standard Error 0.10
Clinical Global Impression - Improvement (CGI-I) Score
Week 22
3.6 units on a scale
Standard Error 0.09
2.8 units on a scale
Standard Error 0.10
Clinical Global Impression - Improvement (CGI-I) Score
Week 26
3.7 units on a scale
Standard Error 0.10
2.7 units on a scale
Standard Error 0.11
Clinical Global Impression - Improvement (CGI-I) Score
Week 27
3.7 units on a scale
Standard Error 0.09
2.8 units on a scale
Standard Error 0.11
Clinical Global Impression - Improvement (CGI-I) Score
Week 11
3.5 units on a scale
Standard Error 0.08
3.0 units on a scale
Standard Error 0.09

SECONDARY outcome

Timeframe: Week 5, 8, 11, 14, 18, 22, 26, and 27

Population: mITT Population

The Patient Global Impression of Change (PGIC) is a 7-point response scale. The participant response to the question, "Compared to your condition at the beginning of treatment, how much has your condition changed?" was assessed. Scores ranged from 1-7 on a scale of 1 (very much improved) to 7 (very much worse). Higher values represent a worse outcome.

Outcome measures

Outcome measures
Measure
Placebo
n=151 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=150 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Change From Baseline in the PGIC Score
Week 5
3.5 score on a scale
Standard Error 0.08
3.3 score on a scale
Standard Error 0.09
Change From Baseline in the PGIC Score
Week 8
3.6 score on a scale
Standard Error 0.09
3.1 score on a scale
Standard Error 0.09
Change From Baseline in the PGIC Score
Week 11
3.6 score on a scale
Standard Error 0.09
3.1 score on a scale
Standard Error 0.10
Change From Baseline in the PGIC Score
Week 14
3.6 score on a scale
Standard Error 0.10
2.9 score on a scale
Standard Error 0.11
Change From Baseline in the PGIC Score
Week 18
3.7 score on a scale
Standard Error 0.10
2.9 score on a scale
Standard Error 0.12
Change From Baseline in the PGIC Score
Week 22
3.7 score on a scale
Standard Error 0.10
2.9 score on a scale
Standard Error 0.12
Change From Baseline in the PGIC Score
Week 26
3.8 score on a scale
Standard Error 0.11
2.8 score on a scale
Standard Error 0.12
Change From Baseline in the PGIC Score
Week 27
3.8 score on a scale
Standard Error 0.11
2.8 score on a scale
Standard Error 0.12

SECONDARY outcome

Timeframe: Week 26

Population: FAS population includes all randomized participants who received at least 1 dose of study drug, and had available data for analysis.

The ESS is an 8-question, participant questionnaire that is intended to measure daytime sleepiness. It assesses the likelihood of dozing off or falling asleep in the following common situations: sitting and reading, sitting inactive in a public place as a passenger in a car for an hour or more without stopping for a break, lying down to rest when circumstances permit, sitting and talking to someone, sitting quietly after a meal without alcohol, and in a car while stopped for a few minutes in traffic or at a light. Each situation is rated on a 4-point (0-3) scale with scores ranging from 0 (would never nod off) to 3 (high chance of nodding off). Higher values represent a worse outcome. A negative change from baseline represents an improvement in daytime sleepiness. The total ESS score range was 0 - 24.

Outcome measures

Outcome measures
Measure
Placebo
n=134 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=98 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Change From Baseline in the Epworth Sleepiness Scale (ESS)
-0.1 score on a scale
Standard Error 0.22
-0.1 score on a scale
Standard Error 0.24

SECONDARY outcome

Timeframe: Week 26

Population: FAS population includes all randomized participants who received at least 1 dose of study drug, and had available data for analysis.

QUIP-RS is a questionnaire for impulse-compulsive disorders in Parkinson's disease rating scale to assess impulse control disorders (ICD). The QUIP-RS has 4 primary questions that pertain to commonly reported thoughts, urges/ desires, and behaviors associated with ICDs, each of which is applied to 4 ICDs (compulsive gambling, buying, eating, sexual behavior) and 3 related disorders (medication use, punding, and hobbyism). The QUIP-RS uses a 5-point Likert scale (score 0-4 \[0 means "never" and 4 means "very often"\] for each question) to gauge the frequency of behaviors. Scores for each ICD and related disorder range from 0 to 16, with a higher score indicating greater severity (frequency) of symptoms. The total QUIP-RS score for all ICDs and related disorders combined ranges from 0 to 112. A higher score indicating greater severity of symptoms. A negative change from baseline represents an improvement in ICDs.

Outcome measures

Outcome measures
Measure
Placebo
n=134 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=99 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Change From Baseline in the Questionnaire for Impulsive-Compulsive Disorders in Parkinson's Disease-Rating Scale (QUIP-RS)
-1.9 score on a scale
Standard Error 0.31
-2.0 score on a scale
Standard Error 0.34

SECONDARY outcome

Timeframe: Week 27

Population: FAS population

The C-SSRS is a systematically administered instrument developed to track suicidal adverse events across a treatment study. The instrument is designed to assess suicidal behavior and ideation, track and assess all suicidal events, as well as the lethality of attempts. Suicidal ideation (SI) categories include the following: wish to be dead; nonspecific active suicidal thoughts; active suicidal ideation without intent to act; active suicidal ideation with some intent to act but no plan; active suicidal ideation with plan and intent. Suicidal behavior categories include the following: actual attempt; interrupted attempt; aborted attempt; preparatory acts or behavior; suicidal behavior; completed suicide.

Outcome measures

Outcome measures
Measure
Placebo
n=153 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=151 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Columbia-Suicide Severity Rating Scale (C-SSRS)
Participants With Any Suicidal Behaviors
0 Participants
0 Participants
Columbia-Suicide Severity Rating Scale (C-SSRS)
Participants With Non-Suicidal Self-Injurious Behavior
0 Participants
0 Participants
Columbia-Suicide Severity Rating Scale (C-SSRS)
Participants With Any Suicidal Ideations
0 Participants
5 Participants
Columbia-Suicide Severity Rating Scale (C-SSRS)
Participants With Any Suicidal Behaviors or Ideations
0 Participants
5 Participants

SECONDARY outcome

Timeframe: From first dose of study drug until 190 days following last dose of study drug.

Population: FAS Population

An adverse event (AE) is defined as any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product which does not necessarily have a causal relationship with this treatment. The investigator assesses the relationship of each event to the use of study drug. A serious adverse event (SAE) is an event that results in death, is life-threatening, requires or prolongs hospitalization, results in a congenital anomaly, persistent or significant disability/incapacity or is an important medical event that, based on medical judgment, may jeopardize the participant and may require medical or surgical intervention to prevent any of the outcomes listed above. Treatment emergent adverse events/treatment-emergent serious adverse events (TEAEs/TESAEs) are defined as any event that began or worsened in severity on or after the first dose of study drug.

Outcome measures

Outcome measures
Measure
Placebo
n=153 Participants
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=151 Participants
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
Number of Participants With Treatment Emergent Adverse Events (TEAEs)
Any TEAE
84 Participants
115 Participants
Number of Participants With Treatment Emergent Adverse Events (TEAEs)
TESAE
2 Participants
7 Participants

Adverse Events

Placebo

Serious events: 2 serious events
Other events: 59 other events
Deaths: 0 deaths

Tavapadon

Serious events: 7 serious events
Other events: 99 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Placebo
n=153 participants at risk
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=151 participants at risk
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
BLOOD AND LYMPHATIC SYSTEM DISORDERS
HYPERCHROMIC ANAEMIA
0.65%
1/153 • Number of events 1 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
0.00%
0/151 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
INJURY, POISONING AND PROCEDURAL COMPLICATIONS
FALL
0.00%
0/153 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
1.3%
2/151 • Number of events 2 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
INJURY, POISONING AND PROCEDURAL COMPLICATIONS
FEMORAL NECK FRACTURE
0.00%
0/153 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
0.66%
1/151 • Number of events 1 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
INJURY, POISONING AND PROCEDURAL COMPLICATIONS
HEAD INJURY
0.00%
0/153 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
0.66%
1/151 • Number of events 1 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
INJURY, POISONING AND PROCEDURAL COMPLICATIONS
JOINT INJURY
0.00%
0/153 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
0.66%
1/151 • Number of events 1 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
NERVOUS SYSTEM DISORDERS
PRESYNCOPE
0.00%
0/153 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
0.66%
1/151 • Number of events 2 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
NERVOUS SYSTEM DISORDERS
REVERSIBLE CEREBRAL VASOCONSTRICTION SYNDROME
0.00%
0/153 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
0.66%
1/151 • Number of events 1 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
PSYCHIATRIC DISORDERS
DEPRESSION
0.00%
0/153 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
0.66%
1/151 • Number of events 1 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
SKIN AND SUBCUTANEOUS TISSUE DISORDERS
HYPERHIDROSIS
0.65%
1/153 • Number of events 1 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
0.00%
0/151 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
VASCULAR DISORDERS
HYPERTENSION
0.00%
0/153 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
0.66%
1/151 • Number of events 1 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.

Other adverse events

Other adverse events
Measure
Placebo
n=153 participants at risk
Participants received placebo matching to Tavapadon tablet once daily (QD) orally for 27 weeks.
Tavapadon
n=151 participants at risk
Participants received Tavapadon 5 mg to 15 mg tablet QD orally for 27 weeks.
GASTROINTESTINAL DISORDERS
CONSTIPATION
2.0%
3/153 • Number of events 3 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
4.0%
6/151 • Number of events 6 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
GASTROINTESTINAL DISORDERS
DIARRHOEA
1.3%
2/153 • Number of events 2 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
2.6%
4/151 • Number of events 5 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
GASTROINTESTINAL DISORDERS
DRY MOUTH
0.65%
1/153 • Number of events 1 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
3.3%
5/151 • Number of events 5 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
GASTROINTESTINAL DISORDERS
DYSPEPSIA
1.3%
2/153 • Number of events 3 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
4.0%
6/151 • Number of events 6 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
GASTROINTESTINAL DISORDERS
GASTROOESOPHAGEAL REFLUX DISEASE
1.3%
2/153 • Number of events 2 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
4.0%
6/151 • Number of events 7 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
GASTROINTESTINAL DISORDERS
NAUSEA
3.3%
5/153 • Number of events 5 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
29.8%
45/151 • Number of events 54 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
GASTROINTESTINAL DISORDERS
SALIVARY HYPERSECRETION
1.3%
2/153 • Number of events 2 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
3.3%
5/151 • Number of events 5 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
GASTROINTESTINAL DISORDERS
VOMITING
0.00%
0/153 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
7.9%
12/151 • Number of events 14 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
GENERAL DISORDERS AND ADMINISTRATION SITE CONDITIONS
ASTHENIA
1.3%
2/153 • Number of events 2 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
5.3%
8/151 • Number of events 9 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
GENERAL DISORDERS AND ADMINISTRATION SITE CONDITIONS
FATIGUE
0.65%
1/153 • Number of events 1 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
7.9%
12/151 • Number of events 14 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
INFECTIONS AND INFESTATIONS
BRONCHITIS
2.6%
4/153 • Number of events 4 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
0.00%
0/151 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
INFECTIONS AND INFESTATIONS
COVID-19
5.2%
8/153 • Number of events 8 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
3.3%
5/151 • Number of events 5 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
INFECTIONS AND INFESTATIONS
UPPER RESPIRATORY TRACT INFECTION
4.6%
7/153 • Number of events 7 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
2.0%
3/151 • Number of events 3 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
INFECTIONS AND INFESTATIONS
URINARY TRACT INFECTION
2.6%
4/153 • Number of events 4 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
3.3%
5/151 • Number of events 5 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
INJURY, POISONING AND PROCEDURAL COMPLICATIONS
FALL
2.0%
3/153 • Number of events 4 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
5.3%
8/151 • Number of events 10 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
METABOLISM AND NUTRITION DISORDERS
DECREASED APPETITE
0.65%
1/153 • Number of events 1 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
2.6%
4/151 • Number of events 4 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
MUSCULOSKELETAL AND CONNECTIVE TISSUE DISORDERS
ARTHRALGIA
3.9%
6/153 • Number of events 6 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
4.6%
7/151 • Number of events 7 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
MUSCULOSKELETAL AND CONNECTIVE TISSUE DISORDERS
BACK PAIN
4.6%
7/153 • Number of events 8 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
2.6%
4/151 • Number of events 5 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
MUSCULOSKELETAL AND CONNECTIVE TISSUE DISORDERS
PAIN IN EXTREMITY
2.6%
4/153 • Number of events 5 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
0.00%
0/151 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
NERVOUS SYSTEM DISORDERS
DIZZINESS
3.3%
5/153 • Number of events 7 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
15.9%
24/151 • Number of events 28 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
NERVOUS SYSTEM DISORDERS
DYSGEUSIA
0.00%
0/153 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
7.9%
12/151 • Number of events 12 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
NERVOUS SYSTEM DISORDERS
HEADACHE
5.2%
8/153 • Number of events 11 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
16.6%
25/151 • Number of events 37 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
NERVOUS SYSTEM DISORDERS
PARAESTHESIA
2.6%
4/153 • Number of events 5 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
2.6%
4/151 • Number of events 5 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
NERVOUS SYSTEM DISORDERS
PARKINSON'S DISEASE
2.6%
4/153 • Number of events 4 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
0.66%
1/151 • Number of events 1 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
NERVOUS SYSTEM DISORDERS
SOMNOLENCE
3.9%
6/153 • Number of events 7 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
3.3%
5/151 • Number of events 6 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
NERVOUS SYSTEM DISORDERS
TREMOR
8.5%
13/153 • Number of events 15 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
2.0%
3/151 • Number of events 3 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
PSYCHIATRIC DISORDERS
ABNORMAL DREAMS
0.65%
1/153 • Number of events 2 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
3.3%
5/151 • Number of events 5 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
PSYCHIATRIC DISORDERS
ANXIETY
1.3%
2/153 • Number of events 2 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
3.3%
5/151 • Number of events 5 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
PSYCHIATRIC DISORDERS
INSOMNIA
3.3%
5/153 • Number of events 5 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
4.0%
6/151 • Number of events 6 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
VASCULAR DISORDERS
HYPOTENSION
0.00%
0/153 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.
4.0%
6/151 • Number of events 7 • All-cause mortality were reported from enrollment until 4 weeks after the end of study. Treatment-emergent adverse events and serious adverse events were collected from first dose of study drug until 4 weeks after the last dose of study drug. Mean duration on study drug was 176.7 and 144.5 days for Placebo and Tavapadon, respectively. Median time on follow up (median time subjects were followed) was 200 and 198 days for Placebo and Tavapadon, respectively.

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