Skip to content

Safety/Efficacy of Tigan® to Control Nausea/Vomiting Experienced During Apokyn® Initiation and Treatment

A Randomized, Double-blind, Placebo-controlled Study of the Efficacy and Safety of Trimethobenzamide (Tigan®) in the Control of Nausea and Vomiting During Initiation and Continued Treatment With Subcutaneous Apomorphine (Apokyn®) in Apomorphine-naïve Subjects With Parkinson's Disease Suffering From Acute Intermittent Off Episodes, With Phased Withdrawal of Subjects From Tigan® to Placebo

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00489255
Enrollment
117
Registered
2007-06-21
Start date
2007-05-31
Completion date
2012-03-31
Last updated
2019-01-30

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

Conditions

Parkinson's Disease

Keywords

Parkinson's disease, Anti-emetic, Nausea, Vomiting

Brief summary

The purposes of the study are to determine: i. To assess the efficacy of Tigan® (trimethobenzamide) in preventing nausea and vomiting when initiating therapy with Apokyn® (apomorphine) ii. To determine the optimal duration for continuation of Tigan® following initiation of Apokyn® therapy iii. To assess the safety of Tigan® in combination with Apokyn® iv. To characterize the pharmacokinetic (PK) profile of apomorphine in subjects treated concomitantly with and without Tigan®

Detailed description

Initial randomization is Tigan or Placebo (3:1) with phased withdrawal of Tigan to Placebo after 4 and 8 weeks. Subjects completing 4 weeks Tigan re-randomized to Tigan or Placebo (2:1) with patients completing 8 weeks Tigan re-randomized to receive Tigan or Placebo (1:1). Subjects randomized to Placebo over the previous 4 weeks assigned to continue on Placebo for the remainder of the study.

Interventions

DRUGTigan®

Oral capsule, 300mg three times daily

DRUGPlacebo

Oral capsule, three times daily

Sponsors

INC Research Limited
CollaboratorINDUSTRY
Ipsen
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subjects aged 18 years or over * Subjects with advanced Parkinson's disease with disabling hypomobility (off episodes) who are to be initiated with Apokyn® by intermittent subcutaneous injection * Able to swallow Tigan®/placebo capsules * Subjects willing and able to comply with scheduled visits, treatment plan, laboratory tests and other study procedures * Women of child bearing potential must have a negative serum pregnancy test (beta hCG) prior to receiving study drug and must be using an appropriate form of contraception * Willing and able to provide informed consent

Exclusion criteria

* Hypersensitive to apomorphine hydrochloride or any of the ingredients of Apokyn® (notably sodium metabisulfite) * Hypersensitive to trimethobenzamide or any of the ingredients of Tigan® * Previous treatment with Apokyn® * Participation in any other clinical trial within 14 days of the present trial * Contraindications to Apokyn® or Tigan® * Currently taking, or likely to need to take at any time during the course of the study, any 5HT3 antagonist (ondansetron, alosetron, granisetron, palonosetron or dolasetron) * Malignant melanoma or a history of previously treated malignant melanoma * Pregnancy or breast feeding * Receipt of any investigational (i.e. unapproved) medication within 30 days of starting the present trial * Any significant medical disorder, condition, concomitant medication or psychiatric disorder according to DSM-IV criteria which would, in the opinion of the investigator, represent a hazard to the subject or prevent the subject from completing the trial

Design outcomes

Primary

MeasureTime frame
Incidence of Nausea and/or Vomiting During the Initial Titration of Apokyn® at the Visit on Day 1Day 1 (Period 1, Visit 2)

Secondary

MeasureTime frameDescription
Incidence of Nausea and/or Vomiting for Period 2Days 29-56
Incidence of Nausea and/or Vomiting for Period 3Days 57-84
Modified Index of Nausea, Vomiting and Retching (INVR) Scores - Total Experience Score for Period 1Days 1-28The INVR is an 8-item, 5 point Likert-type measurement of the patient's perceived experience of nausea, vomiting and retching. Modified INVR scores collected once daily, rather than twice a day. INVR total score range from 0 to 32, with 32 indicative of the worst and 0 no symptom.
Modified Index of Nausea, Vomiting and Retching (INVR) Scores - Total Experience Score for Period 2Days 29-56The INVR is an 8-item, 5 point Likert-type measurement of the patient's perceived experience of nausea, vomiting and retching. Modified INVR scores collected once daily, rather than twice a day. INVR total score range from 0 to 32, with 32 indicative of the worst and 0 no symptom.
Modified Index of Nausea, Vomiting and Retching (INVR) Scores - Total Experience Score for Period 3Days 57-84The INVR is an 8-item, 5 point Likert-type measurement of the patient's perceived experience of nausea, vomiting and retching. Modified INVR scores collected once daily, rather than twice a day. INVR total score range from 0 to 32, with 32 indicative of the worst and 0 no symptom.
Subject Global Evaluation of Randomized Study Medication for Period 1Day 28 (Visit 3)The subject global evaluation of Tigan/placebo was completed by the subject at the visits in response to the question Overall, how would you rate the study medication you received for nausea/vomiting? Response choices were excellent, very good, good, fair, or poor.
Subject Global Evaluation of Randomized Study Medication for Period 2Day 56 (Visit 4)The subject global evaluation of Tigan/placebo was completed by the subject at the visits in response to the question Overall, how would you rate the study medication you received for nausea/vomiting? Response choices were excellent, very good, good, fair, or poor.
Subject Global Evaluation of Randomized Study Medication for Period 3Day 84 (Visit 5)The subject global evaluation of Tigan/placebo was completed by the subject at the visits in response to the question Overall, how would you rate the study medication you received for nausea/vomiting? Response choices were excellent, very good, good, fair, or poor.
Median Time to 'on' for Visit 2/Period 1 Injection 1Day 1 (Visit 2)Time to on (relief of immobility) was measured 20 minutes after administration of Apokyn and before discharge at the clinic; calculated as the difference between the recorded time of on and time of injection.
Median Time to 'on' for Visit 2/Period 1 Injection 2Day 1 (Visit 2)Time to on (relief of immobility) was measured 20 minutes after administration of Apokyn and before discharge at the clinic; calculated as the difference between the recorded time of on and time of injection.
Incidence of Nausea and/or Vomiting for Period 1Days 1-28
Median Time to 'on' for Visit 4/End of Period 2 InjectionDay 56 (Visit 4)Time to on (relief of immobility) was measured 20 minutes after administration of Apokyn and before discharge at the clinic; calculated as the difference between the recorded time of on and time of injection.
Median Time to 'on' for Visit 5/End of Period 3 InjectionDay 84 (Visit 5)Time to on (relief of immobility) was measured 20 minutes after administration of Apokyn and before discharge at the clinic; calculated as the difference between the recorded time of on and time of injection.
Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 2, Pre Apokyn Dose, Period 1Day 1 (Visit 2)Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.
Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 3, Pre Apokyn Dose, Period 1Day 28Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.
Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 3, Post Apokyn Dose, Period 1Day 28Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.
Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 4, Pre Apokyn Dose, Period 2Day 56 (Visit 4)Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.
Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 4, Post Apokyn Dose, Period 2Day 56 (Visit 4)Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.
Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 5, Pre Apokyn Dose, Period 3Day 84 (Visit 5)Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.
Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 5, Post Apokyn Dose, Period 3Day 56 (Visit 4)Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.
Median Time to 'on' for Visit 3/End of Period 1 InjectionDay 28Time to on (relief of immobility) was measured 20 minutes after administration of Apokyn and before discharge at the clinic; calculated as the difference between the recorded time of on and time of injection.

Countries

United States

Participant flow

Recruitment details

Patients were recruited at 24 investigational sites in the United States (US).

Pre-assignment details

Number of participants STARTED does not match Enrollment, Actual (in protocol section) due to re-randomization design of the study & phased withdrawal of subjects from Tigan to placebo. Some subjects were included on one treatment in one period and re-randomized to a different treatment in a later period.

Participants by arm

ArmCount
Trimethobenzamide (Tigan®)
Tigan® : Oral capsule, 300mg three times daily.
134
Placebo
Placebo : Oral capsule, three times daily.
46
Total180

Withdrawals & dropouts

PeriodReasonFG000FG001
Period 1: Days 1 to 28Adverse Event218
Period 1: Days 1 to 28Noncompliance20
Period 1: Days 1 to 28Physician Decision14
Period 1: Days 1 to 28Withdrawal by Subject50
Period 2: Days 29 to 56Adverse Event31
Period 2: Days 29 to 56Withdrawal by Subject03
Period 3: Days 57 to 84Adverse Event33
Period 3: Days 57 to 84Lost to Follow-up01
Period 3: Days 57 to 84Withdrawal by Subject10
Screening and Initial RandomizationDiscontinued prior to taking study drug93

Baseline characteristics

CharacteristicPlaceboTrimethobenzamide (Tigan®)Total
Age, Continuous63.0 years66.5 years64.0 years
Sex: Female, Male
Female
13 Participants42 Participants55 Participants
Sex: Female, Male
Male
33 Participants92 Participants125 Participants
Unified Parkinson's Disease Rating Scale (UPDRS) total score for Period 147.8 Score on a scale
STANDARD_DEVIATION 17.83
49.2 Score on a scale
STANDARD_DEVIATION 21.26
48.8 Score on a scale
STANDARD_DEVIATION 20.4
UPDRS motor score for Period 125.2 Score on a scale
STANDARD_DEVIATION 12.25
25.7 Score on a scale
STANDARD_DEVIATION 15.07
25.6 Score on a scale
STANDARD_DEVIATION 14.37
UPDRS motor score for Period 225.5 Score on a scale
STANDARD_DEVIATION 12.6
24.3 Score on a scale
STANDARD_DEVIATION 15.5
24.9 Score on a scale
STANDARD_DEVIATION 14.14
UPDRS motor score for Period 325.1 Score on a scale
STANDARD_DEVIATION 14.69
25.5 Score on a scale
STANDARD_DEVIATION 13.58
25.2 Score on a scale
STANDARD_DEVIATION 14.35
UPDRS total score for Period 247.6 Score on a scale
STANDARD_DEVIATION 18.83
46.7 Score on a scale
STANDARD_DEVIATION 21.32
47.1 Score on a scale
STANDARD_DEVIATION 20.09
UPDRS total score for Period 347.5 Score on a scale
STANDARD_DEVIATION 20.87
48.1 Score on a scale
STANDARD_DEVIATION 17.84
47.6 Score on a scale
STANDARD_DEVIATION 20.06

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
86 / 13457 / 106
serious
Total, serious adverse events
4 / 1346 / 106

Outcome results

Primary

Incidence of Nausea and/or Vomiting During the Initial Titration of Apokyn® at the Visit on Day 1

Time frame: Day 1 (Period 1, Visit 2)

Population: Primary efficacy analyses performed on the Intention-to-Treat (ITT) population.

ArmMeasureGroupValue (NUMBER)
Trimethobenzamide (Tigan®)Incidence of Nausea and/or Vomiting During the Initial Titration of Apokyn® at the Visit on Day 1Subjects who experienced nausea &/or vomiting[Yes]21 participants
Trimethobenzamide (Tigan®)Incidence of Nausea and/or Vomiting During the Initial Titration of Apokyn® at the Visit on Day 1Subjects who experienced nausea &/or vomiting [No]109 participants
PlaceboIncidence of Nausea and/or Vomiting During the Initial Titration of Apokyn® at the Visit on Day 1Subjects who experienced nausea &/or vomiting[Yes]10 participants
PlaceboIncidence of Nausea and/or Vomiting During the Initial Titration of Apokyn® at the Visit on Day 1Subjects who experienced nausea &/or vomiting [No]34 participants
Comparison: The null hypothesis was no difference between treatments.p-value: 0.0995% CI: [0.17, 1.11]Cochran-Mantel-Haenszel
Secondary

Incidence of Nausea and/or Vomiting for Period 1

Time frame: Days 1-28

Population: Secondary efficacy analyses performed on the Intention-to-Treat (ITT) population.

ArmMeasureGroupValue (NUMBER)
Trimethobenzamide (Tigan®)Incidence of Nausea and/or Vomiting for Period 1Yes48 participants
Trimethobenzamide (Tigan®)Incidence of Nausea and/or Vomiting for Period 1No82 participants
PlaceboIncidence of Nausea and/or Vomiting for Period 1Yes24 participants
PlaceboIncidence of Nausea and/or Vomiting for Period 1No20 participants
p-value: 0.02595% CI: [0.21, 0.9]Cochran-Mantel-Haenszel
Secondary

Incidence of Nausea and/or Vomiting for Period 2

Time frame: Days 29-56

Population: Secondary efficacy analyses performed on the Intention-to-Treat (ITT) population.

ArmMeasureGroupValue (NUMBER)
Trimethobenzamide (Tigan®)Incidence of Nausea and/or Vomiting for Period 2Yes15 participants
Trimethobenzamide (Tigan®)Incidence of Nausea and/or Vomiting for Period 2No48 participants
PlaceboIncidence of Nausea and/or Vomiting for Period 2Yes14 participants
PlaceboIncidence of Nausea and/or Vomiting for Period 2No16 participants
p-value: 0.00595% CI: [0.09, 0.7]Cochran-Mantel-Haenszel
Secondary

Incidence of Nausea and/or Vomiting for Period 3

Time frame: Days 57-84

Population: Secondary efficacy analyses performed on the Intention-to-Treat (ITT) population.

ArmMeasureGroupValue (NUMBER)
Trimethobenzamide (Tigan®)Incidence of Nausea and/or Vomiting for Period 3Yes9 participants
Trimethobenzamide (Tigan®)Incidence of Nausea and/or Vomiting for Period 3No18 participants
PlaceboIncidence of Nausea and/or Vomiting for Period 3Yes10 participants
PlaceboIncidence of Nausea and/or Vomiting for Period 3No20 participants
p-value: 0.6595% CI: [0.23, 2.48]Cochran-Mantel-Haenszel
Secondary

Median Time to 'on' for Visit 2/Period 1 Injection 1

Time to on (relief of immobility) was measured 20 minutes after administration of Apokyn and before discharge at the clinic; calculated as the difference between the recorded time of on and time of injection.

Time frame: Day 1 (Visit 2)

Population: This secondary efficacy analysis was performed on the Intention-to-Treat (ITT) population.

ArmMeasureValue (MEDIAN)
Trimethobenzamide (Tigan®)Median Time to 'on' for Visit 2/Period 1 Injection 125.0 minutes
PlaceboMedian Time to 'on' for Visit 2/Period 1 Injection 120.0 minutes
p-value: 0.1795% CI: [0.5, 1.1]Regression, Cox
Secondary

Median Time to 'on' for Visit 2/Period 1 Injection 2

Time to on (relief of immobility) was measured 20 minutes after administration of Apokyn and before discharge at the clinic; calculated as the difference between the recorded time of on and time of injection.

Time frame: Day 1 (Visit 2)

Population: This secondary efficacy analysis was performed on the Intention-to-Treat (ITT) population.

ArmMeasureValue (MEDIAN)
Trimethobenzamide (Tigan®)Median Time to 'on' for Visit 2/Period 1 Injection 220.0 minutes
PlaceboMedian Time to 'on' for Visit 2/Period 1 Injection 216.5 minutes
p-value: 0.00895% CI: [0.1, 0.7]Regression, Cox
Secondary

Median Time to 'on' for Visit 3/End of Period 1 Injection

Time to on (relief of immobility) was measured 20 minutes after administration of Apokyn and before discharge at the clinic; calculated as the difference between the recorded time of on and time of injection.

Time frame: Day 28

Population: This secondary efficacy analysis was performed on the Intention-to-Treat (ITT) population.

ArmMeasureValue (MEDIAN)
Trimethobenzamide (Tigan®)Median Time to 'on' for Visit 3/End of Period 1 Injection12.0 minutes
PlaceboMedian Time to 'on' for Visit 3/End of Period 1 Injection10.0 minutes
p-value: 0.4995% CI: [0.6, 1.3]Regression, Cox
Secondary

Median Time to 'on' for Visit 4/End of Period 2 Injection

Time to on (relief of immobility) was measured 20 minutes after administration of Apokyn and before discharge at the clinic; calculated as the difference between the recorded time of on and time of injection.

Time frame: Day 56 (Visit 4)

ArmMeasureValue (MEDIAN)
Trimethobenzamide (Tigan®)Median Time to 'on' for Visit 4/End of Period 2 Injection10.0 minutes
PlaceboMedian Time to 'on' for Visit 4/End of Period 2 Injection12.0 minutes
p-value: 0.495% CI: [0.7, 2.1]Regression, Cox
Secondary

Median Time to 'on' for Visit 5/End of Period 3 Injection

Time to on (relief of immobility) was measured 20 minutes after administration of Apokyn and before discharge at the clinic; calculated as the difference between the recorded time of on and time of injection.

Time frame: Day 84 (Visit 5)

ArmMeasureValue (MEDIAN)
Trimethobenzamide (Tigan®)Median Time to 'on' for Visit 5/End of Period 3 Injection10.0 minutes
PlaceboMedian Time to 'on' for Visit 5/End of Period 3 Injection10.0 minutes
p-value: 0.6295% CI: [0.6, 2.3]Regression, Cox
Secondary

Modified Index of Nausea, Vomiting and Retching (INVR) Scores - Total Experience Score for Period 1

The INVR is an 8-item, 5 point Likert-type measurement of the patient's perceived experience of nausea, vomiting and retching. Modified INVR scores collected once daily, rather than twice a day. INVR total score range from 0 to 32, with 32 indicative of the worst and 0 no symptom.

Time frame: Days 1-28

Population: This secondary efficacy analysis was performed on the Intention-to-Treat (ITT) population.

ArmMeasureValue (MEAN)Dispersion
Trimethobenzamide (Tigan®)Modified Index of Nausea, Vomiting and Retching (INVR) Scores - Total Experience Score for Period 10.51 score on a scaleStandard Deviation 1.504
PlaceboModified Index of Nausea, Vomiting and Retching (INVR) Scores - Total Experience Score for Period 10.80 score on a scaleStandard Deviation 1.755
p-value: 0.3295% CI: [-0.64, 0.21]ANOVA
Secondary

Modified Index of Nausea, Vomiting and Retching (INVR) Scores - Total Experience Score for Period 2

The INVR is an 8-item, 5 point Likert-type measurement of the patient's perceived experience of nausea, vomiting and retching. Modified INVR scores collected once daily, rather than twice a day. INVR total score range from 0 to 32, with 32 indicative of the worst and 0 no symptom.

Time frame: Days 29-56

Population: Secondary efficacy analyses performed on the Intention-to-Treat (ITT) population.

ArmMeasureValue (MEAN)Dispersion
Trimethobenzamide (Tigan®)Modified Index of Nausea, Vomiting and Retching (INVR) Scores - Total Experience Score for Period 20.19 score on a scaleStandard Deviation 0.491
PlaceboModified Index of Nausea, Vomiting and Retching (INVR) Scores - Total Experience Score for Period 21.27 score on a scaleStandard Deviation 2.568
p-value: 0.00195% CI: [-1.71, -0.43]ANOVA
Secondary

Modified Index of Nausea, Vomiting and Retching (INVR) Scores - Total Experience Score for Period 3

The INVR is an 8-item, 5 point Likert-type measurement of the patient's perceived experience of nausea, vomiting and retching. Modified INVR scores collected once daily, rather than twice a day. INVR total score range from 0 to 32, with 32 indicative of the worst and 0 no symptom.

Time frame: Days 57-84

Population: Secondary efficacy analyses performed on the Intention-to-Treat (ITT) population.

ArmMeasureValue (MEAN)Dispersion
Trimethobenzamide (Tigan®)Modified Index of Nausea, Vomiting and Retching (INVR) Scores - Total Experience Score for Period 30.27 score on a scaleStandard Deviation 0.684
PlaceboModified Index of Nausea, Vomiting and Retching (INVR) Scores - Total Experience Score for Period 30.21 score on a scaleStandard Deviation 0.392
p-value: 0.9595% CI: [-0.2, 0.19]ANOVA
Secondary

Subject Global Evaluation of Randomized Study Medication for Period 1

The subject global evaluation of Tigan/placebo was completed by the subject at the visits in response to the question Overall, how would you rate the study medication you received for nausea/vomiting? Response choices were excellent, very good, good, fair, or poor.

Time frame: Day 28 (Visit 3)

Population: This secondary efficacy analysis was performed on the total number of subjects who responded to the evaluation within the Intention-to-Treat (ITT) population.

ArmMeasureGroupValue (NUMBER)
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 1Very good23 participants
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 1Fair6 participants
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 1Good10 participants
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 1Poor7 participants
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 1Excellent61 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 1Poor3 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 1Excellent20 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 1Very good5 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 1Good3 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 1Fair3 participants
p-value: 0.88Cochran-Mantel-Haenszel
Secondary

Subject Global Evaluation of Randomized Study Medication for Period 2

The subject global evaluation of Tigan/placebo was completed by the subject at the visits in response to the question Overall, how would you rate the study medication you received for nausea/vomiting? Response choices were excellent, very good, good, fair, or poor.

Time frame: Day 56 (Visit 4)

Population: This secondary efficacy analysis was performed on the total number of subjects who responded to the evaluation within the Intention-to-Treat (ITT) population.

ArmMeasureGroupValue (NUMBER)
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 2Very good16 participants
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 2Fair3 participants
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 2Good2 participants
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 2Poor2 participants
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 2Excellent38 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 2Poor6 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 2Excellent15 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 2Very good4 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 2Good2 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 2Fair2 participants
p-value: 0.019Cochran-Mantel-Haenszel
Secondary

Subject Global Evaluation of Randomized Study Medication for Period 3

The subject global evaluation of Tigan/placebo was completed by the subject at the visits in response to the question Overall, how would you rate the study medication you received for nausea/vomiting? Response choices were excellent, very good, good, fair, or poor.

Time frame: Day 84 (Visit 5)

Population: This secondary efficacy analysis was performed on the total number of subjects who responded to the evaluation within the Intention-to-Treat (ITT) population.

ArmMeasureGroupValue (NUMBER)
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 3Very good4 participants
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 3Fair0 participants
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 3Good3 participants
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 3Poor2 participants
Trimethobenzamide (Tigan®)Subject Global Evaluation of Randomized Study Medication for Period 3Excellent17 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 3Poor3 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 3Excellent24 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 3Very good2 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 3Good0 participants
PlaceboSubject Global Evaluation of Randomized Study Medication for Period 3Fair0 participants
p-value: 0.29Cochran-Mantel-Haenszel
Secondary

Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 2, Pre Apokyn Dose, Period 1

Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.

Time frame: Day 1 (Visit 2)

Population: This secondary efficacy analysis was performed on the Intention-to-Treat (ITT) population.

ArmMeasureValue (MEAN)Dispersion
Trimethobenzamide (Tigan®)Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 2, Pre Apokyn Dose, Period 135.5 score on a scaleStandard Deviation 13.72
PlaceboUnified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 2, Pre Apokyn Dose, Period 135.3 score on a scaleStandard Deviation 13.31
p-value: 0.9695% CI: [-3.59, 3.76]ANOVA
Secondary

Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 3, Post Apokyn Dose, Period 1

Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.

Time frame: Day 28

Population: This secondary efficacy analysis was performed on the Intention-to-Treat (ITT) population.

ArmMeasureValue (MEAN)Dispersion
Trimethobenzamide (Tigan®)Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 3, Post Apokyn Dose, Period 120.8 score on a scaleStandard Deviation 13.21
PlaceboUnified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 3, Post Apokyn Dose, Period 121.1 score on a scaleStandard Deviation 12.94
p-value: 0.8495% CI: [-4.12, 3.34]ANOVA
Secondary

Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 3, Pre Apokyn Dose, Period 1

Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.

Time frame: Day 28

Population: This secondary efficacy analysis was performed on the Intention-to-Treat (ITT) population.

ArmMeasureValue (MEAN)Dispersion
Trimethobenzamide (Tigan®)Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 3, Pre Apokyn Dose, Period 134.0 score on a scaleStandard Deviation 14.27
PlaceboUnified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 3, Pre Apokyn Dose, Period 134.2 score on a scaleStandard Deviation 13.08
p-value: 0.9395% CI: [-4.37, 4.02]ANOVA
Secondary

Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 4, Post Apokyn Dose, Period 2

Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.

Time frame: Day 56 (Visit 4)

Population: This secondary efficacy analysis was performed on the Intention-to-Treat (ITT) population.

ArmMeasureValue (MEAN)Dispersion
Trimethobenzamide (Tigan®)Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 4, Post Apokyn Dose, Period 220.9 score on a scaleStandard Deviation 12.86
PlaceboUnified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 4, Post Apokyn Dose, Period 219.0 score on a scaleStandard Deviation 7.01
p-value: 0.4695% CI: [-2.47, 5.4]ANOVA
Secondary

Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 4, Pre Apokyn Dose, Period 2

Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.

Time frame: Day 56 (Visit 4)

Population: This secondary efficacy analysis was performed on the Intention-to-Treat (ITT) population.

ArmMeasureValue (MEAN)Dispersion
Trimethobenzamide (Tigan®)Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 4, Pre Apokyn Dose, Period 237.1 score on a scaleStandard Deviation 15.07
PlaceboUnified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 4, Pre Apokyn Dose, Period 233.3 score on a scaleStandard Deviation 11.19
p-value: 0.2595% CI: [-2.17, 8.11]ANOVA
Secondary

Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 5, Post Apokyn Dose, Period 3

Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.

Time frame: Day 56 (Visit 4)

Population: This secondary efficacy analysis was performed on the Intention-to-Treat (ITT) population.

ArmMeasureValue (MEAN)Dispersion
Trimethobenzamide (Tigan®)Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 5, Post Apokyn Dose, Period 322.6 score on a scaleStandard Deviation 13.52
PlaceboUnified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 5, Post Apokyn Dose, Period 321.4 score on a scaleStandard Deviation 14.87
p-value: 0.9395% CI: [-5.57, 6.11]ANOVA
Secondary

Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 5, Pre Apokyn Dose, Period 3

Part 3 (Motor Examination) of the UPDRS contains 14 items designed to assess the severity of the cardinal motor findings (e.g., tremor, rigidity, bradykinesia, postural instability, etc.) in patients with Parkinson's disease. UPDRS motor score range from 0 to 56, with 56 indicative of the worst and 0 no disability.

Time frame: Day 84 (Visit 5)

Population: This secondary efficacy analysis was performed on the Intention-to-Treat (ITT) population.

ArmMeasureValue (MEAN)Dispersion
Trimethobenzamide (Tigan®)Unified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 5, Pre Apokyn Dose, Period 337.7 score on a scaleStandard Deviation 13.42
PlaceboUnified Parkinson's Disease Rating Scale (UPDRS) Part 3 (Motor Section) for Visit 5, Pre Apokyn Dose, Period 334.3 score on a scaleStandard Deviation 14.95
p-value: 0.3395% CI: [-3.13, 9.06]ANOVA

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026