Skip to content

Aprepitant for the Relief of Nausea in Patients With Chronic Nausea and Vomiting of Presumed Gastric Origin Trial

Aprepitant for the Relief of Nausea in Patients With Chronic Nausea and Vomiting of Presumed Gastric Origin: A Multicenter, Randomized, Double-Masked, Placebo-Controlled Trial

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01149369
Acronym
APRON
Enrollment
126
Registered
2010-06-23
Start date
2013-04-30
Completion date
2015-09-30
Last updated
2019-05-08

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

Conditions

Gastroparesis

Keywords

gastroparesis, nausea, vomiting

Brief summary

The principal objective of this multicenter, randomized, placebo-controlled trial is to evaluate whether 4 weeks of treatment with aprepitant will improve nausea as compared with placebo in patients with symptoms of chronic nausea and vomiting of presumed gastric origin.

Detailed description

APRON is a multicenter, randomized, double-masked, placebo controlled trial of 4 weeks of treatment with aprepitant or placebo for patients with symptoms of gastroparesis and related disorders. Screening for eligibility and collection of baseline data will span up to 4 weeks after obtaining informed consent and registration. Eligible patients will consist of patients with symptoms of gastroparesis and will be randomized to either aprepitant (125 mg per day) or placebo for 4 weeks. The symptoms will be measured with the Gastroparesis Cardinal Symptom Index Daily Diary (GCSIDD) for one week at baseline and for four weeks after randomization. In addition, the nausea symptom will be measured daily on a 0 to 100 mm visual analog scale (VAS) for one week at baseline and daily for four weeks after randomization. There will be a 2 week washout period at the end of the treatment to ensure patient safety following the end of treatment.

Interventions

DRUGAprepitant

Aprepitant, 125 mg, 1 capsule, q.d. (everyday) with lunch for 4 weeks

DRUGPlacebo

Aprepitant-placebo, 125 mg, 1 capsule, q.d. (everyday) with lunch for 4 weeks

Sponsors

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Lead SponsorNIH

Study design

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

Eligibility

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

Inclusion criteria

* Age 18 years or older at registration * Gastric emptying scintigraphy within 2 years of registration * Normal upper endoscopy or upper GI series within 2 years of registration * Symptoms of chronic nausea or vomiting compatible with gastroparesis or other functional gastric disorder for at least 6 months (does not have to be contiguous) prior to registration with Gastroparesis Cardinal Symptom Index (GCSI) score of greater than or equal to 21 * Significant nausea defined with a visual analog scale (VAS) score of greater than or equal to 25 mm on a 0 to 100 mm scale

Exclusion criteria

* Another active disorder which could explain symptoms in the opinion of the investigator * Use of narcotics more than 3 days per week * Significant hepatic injury as defined by significant alanine aminotransferase (ALT) and aspartate aminotransferase (AST) elevations of greater than 2x the upper limit of normal (ULN) or a Child-Pugh score of 10 or greater * Contraindications to aprepitant such as hypersensitivity or allergy * Concurrent use of warfarin, pimozide, terfenadine, astemizole, or cisapride * Pregnancy or nursing * Any other condition, which in the opinion of the investigator would impede compliance or hinder the completion of the study * Failure to give informed consent

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Improvement in Nausea4 weeksThe primary outcome measure is a binary (0,1) variable indicating improvement in nausea or not in the mean of available visual analog scale (VAS) scores over the 28 day treatment period compared to the mean of VAS scores during the 7 day baseline period. The criteria for improvement are either a 25 mm or more reduction in mean VAS or attaining a mean VAS during the treatment period of \< 25 mm.

Secondary

MeasureTime frameDescription
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting (No. Episodes)4 weeksGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting is the participant's assessment of the number of episodes of vomiting experienced in the past 24 hours. The outcome is the change from baseleine in number of times vomited, where negative numbers indicate improvement in vomiting frequency, and positive numbers indicate worsening in vomiting frequency.
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Retching (No. Episodes)4 weeksGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Retching is the participant's assessment of the number of episodes of retching (heaving as if to vomit, but nothing comes up) experienced in the past 24 hours. The outcome is the change from baseline in the number of retching episodes, where negative numbers indicate improvement in retching frequency, and positive numbers indicate worsening in retching frequency.
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): GCSI Total Score4 weeksThe Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): GCSI total score is the average of 3 subscores: Nausea (average of two items: nausea and vomiting), Early Satiety (average of two items: not able to finish normal size meal and feeling excessively full after meals), and Bloating (feeling like you need to loosen your clothes). Each item is the participant's assessment of severity of the symptom during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in GCSI total score, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea Severity4 weeksGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea severity is the participant's assessment of nausea (feeling sick to your stomach as if you were going to vomit or throw up) during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in GCSI score, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting Severity4 weeksGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting Severity is the participant's assessment of vomiting during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Vomiting Severity, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Upper Abdominal Pain Severity4 weeksGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Upper Abdominal Pain Severity is the participant's assessment of upper abdominal pain (above the navel) during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Upper Abdominal Pain Severity, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Excessive Fullness Severity4 weeksGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Excessive Fullness Severity is the participant's assessment of excessive fullness (feeling excessively full after meals) during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Excessive Fullness Severity, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Early Satiety Severity4 weeksGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Early Satiety Severity is the participant's assessment of early satiety (not able to finish normal-size meal) during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Early Satiety Severity, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Platelet Count4 weeksChange from baseline in platelet count
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Bloating Severity4 weeksGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Bloating Severity is the participant's assessment of bloating (feeling like you need to loosen your clothes) during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Bloating Severity, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Overall Symptom Severity4 weeksGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Overall Symptom Severity is the participant's assessment of overall severity of gastroparesis symptoms during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome, change from baseline in Overall Symptom Severity score, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Clinical Global Patient Impression Score (Patient-rated)4 weeksThe Clinical Global Patient Impression Score quantifies the overall relief of the patient's symptom, by asking the participant to consider how they felt over the past week in regard to stomach symptoms and overall well-being, and rate relief of symptoms in comparison to how they felt before entering the study. Possible scores are: -3=very considerably worse, -2=considerably worse, -1=somewhat worse, 0=unchanged, 1=somewhat better, 2=considerably better, 3=completely better. The range of scores is -3 to 3, where higher scores are considered a better outcome. The outcome measure, change from baseline in Clinical Global Patient Impression Score, has a possible range of -6 to +6, with positive values indicating a better outcome (improvement) and negative values indicating a worse outcome.
Liver Enzymes and Proteins: Alanine Aminotransferase (ALT)4 weeksChange from baseline in serum alanine aminotransferase (ALT), U/L
Liver Enzymes and Proteins: Aspartate Aminotransferase (AST)4 weeksChange from baseline in aspartate aminotransferase (AST), U/L
Liver Enzymes and Proteins: Total Protein4 weeksChange from baseline in total protein (g/dL)
Hemoglobin A1c (HbA1c)4 weeksChange from baseline in hemoglobin A1c (HbA1c) (%)
Glucose4 weeksChange from baseline in glucose (mg/dL)
Liver Enzymes and Proteins: Albumin4 weeksChange from baseline in albumin (g/dL)
Hemoglobin4 weeksChange from baseline in hemoglobin (g/dL)
Hematocrit4 weeksChange from baseline in hematocrit
White Blood Cell Count (WBC)4 weeksChange from baseline in white blood cell count (WBC)
Red Blood Cell Count (RBC)4 weeksChange from baseline in red blood cell count (RBC)
Carbon Dioxide4 weeksChange from baseline in carbon dioxide (mEg/L)
Chloride4 weeksChange from baseline in chloride (mEq/L)
Sodium4 weeksChange from baseline in sodium (mEq/L)
Potassium4 weeksChange from baseline in potassium (mEq/L)
Calcium4 weeksChange from baseline in calcium (mg/dL)
Blood Urea Nitrogen (BUN)4 weeksChange from baseline in blood urea nitrogen (BUN) (mg/dL)
Magnesium4 weeksChange from baseline in magnesium (mg/dL)
Creatinine4 weeksChange from baseline in creatinine (mg/dL)
PAGI-SYM Severity Index: Gastroparesis Cardinal Symptom Index (GCSI) Score4 weeksPAGI-SYM Severity index: Gastroparesis Cardinal Symptom Index (GCSI) score is the average of 3 subscores: Nausea (average of 3 items: nausea, retching, and vomiting), Fullness/Early Satiety (average of 4 items: stomach fullness, not able to finish normal size meal, feeling excessively full after meals, and loss of appetite), and Bloating (average if 2 items: bloating and stomach visibly larger). Each item is the participant's assessment of severity of the symptom during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The outcome measure, change from baseline in GCSI score, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Nausea/Vomiting Severity Subscore4 weeksThe PAGI-SYM Severity index: Nausea/vomiting severity subscore is the average of 3 items: nausea, retching, and vomiting. Each item is the participant's assessment of severity of the symptom during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Nausea/vomiting severity subscore, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Fullness/Early Satiety Subscore4 weeksThe PAGI-SYM Severity index: Fullness/Early Satiety Subscore is the average of 4 items: stomach fullness, not able to finish normal size meal, felling excessively full after meals, and loss of appetite. Each item is the participant's assessment of severity of the symptom during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Fullness/Early Satiety Subscore, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Bloating Subscore4 weeksThe PAGI-SYM Severity index: Bloating Subscore is the average of 2 items: bloating (feeling like you need to loosen your clothes) and stomach visibly larger. Each item is the participant's assessment of severity of the symptom during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The outcome measure, change from baseline in Bloating Subscore, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Upper Abdominal Pain Subscore4 weeksThe PAGI-SYM Severity index: Upper Abdominal Pain subscore is the average of 2 items (upper abdominal pain, upper abdominal discomfort). Each item is the participant's assessment of severity of the symptom during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Upper Abdominal Pain Subscore, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: GERD Subscore4 weeksPAGI-SYM Severity index: Gastroesophageal Reflux (GERD) Subscore is the average of 7 items (heartburn during day, heartburn lying down, chest discomfort day, chest discomfort during sleep, regurgitation during day, regurgitation lying down, bitter taste in mouth). Each item is the participant's assessment of severity of the symptom, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in GERD Subscore, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Nausea Severity4 weeksThe PAGI-SYM Severity index: Nausea severity is the participant's assessment of nausea (feeling sick to your stomach as if you were going to vomit or throw up) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Nausea Severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Vomiting Severity4 weeksThe PAGI-SYM Severity index: Vomiting Severity is the participant's assessment of vomiting during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Vomiting Severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Retching Severity4 weeksThe PAGI-SYM Severity index: Retching Severity is the participant's assessment of retching (heaving as if to vomit, but nothing comes up) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Retching Severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Stomach Fullness Severity4 weeksPAGI-SYM Severity index: Stomach Fullness severity is the participant's assessment of stomach fullness during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Stomach Fullness severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Unable to Finish Meal Severity4 weeksPAGI-SYM Severity index: Unable to Finish Meal severity is the participant's assessment of being unable to finish a normal size meal during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Unable to Finish Meal severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Excessive Fullness Severity4 weeksPAGI-SYM Severity index: Excessive fullness severity is the participant's assessment of feeling excessively full after meals during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Excessive Fullness severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Loss of Appetite Severity4 weeksPAGI-SYM Severity index: Loss of appetite severity is the participant's assessment of loss of appetite during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Loss of appetite severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Bloating Severity4 weeksThe PAGI-SYM Severity index: Bloating Severity is the participant's assessment of bloating (feel like you need to loosen your clothes) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Bloating Severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Stomach Distention Severity4 weeksThe PAGI-SYM Severity index: Stomach distention severity is the participant's assessment of stomach distention (stomach or belly visibly larger) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Stomach Distention severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Upper Abdominal Pain Severity4 weeksThe PAGI-SYM Severity index: Upper Abdominal Pain severity is the participant's assessment of upper abdominal pain (above the navel) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Upper Abdominal Pain severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Upper Abdominal Discomfort Severity4 weeksThe PAGI-SYM Severity index: Upper Abdominal Discomfort severity is the participant's assessment of upper abdominal discomfort (above the navel) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Upper Abdominal Discomfort severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Lower Abdominal Pain Severity4 weeksThe PAGI-SYM Severity index: Lower Abdominal Pain severity is the participant's assessment of lower abdominal pain (below the navel) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Lower Abdominal Pain severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Lower Abdominal Discomfort Severity4 weeksThe PAGI-SYM Severity index: Lower Abdominal Discomfort severity is the participant's assessment of lower abdominal discomfort (below the navel) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Lower Abdominal Discomfort severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Heartburn During the Day Severity4 weeksThe PAGI-SYM Severity index: Heartburn during the day severity is the participant's assessment of heartburn (burning pain rising in your chest or throat) during the day over the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Heartburn During the Day severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Heartburn When Lying Down Severity4 weeksThe PAGI-SYM Severity index: Heartburn when lying down severity is the participant's assessment of heartburn (burning pain rising in your chest or throat) when lying down over the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Heartburn When Lying Down severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Chest Discomfort During the Day Severity4 weeksThe PAGI-SYM Severity index: Chest discomfort during the day severity is the participant's assessment of feeling of discomfort inside the chest during the day over the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Chest Discomfort During the Day severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Chest Discomfort During Sleep Time Severity4 weeksThe PAGI-SYM Severity index: Chest discomfort during sleep severity is the participant's assessment of feeling of discomfort inside the chest at night (during sleep time) over the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Chest Discomfort During Sleep Time severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Regurgitation During the Day Severity4 weeksThe PAGI-SYM Severity index: Regurgitation during the day severity is the participant's assessment of regurgitation or reflux (fluid or liquid from your stomach coming up into throat) during the day over the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Regurgitation During the Day severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Regurgitation When Lying Down Severity4 weeksThe PAGI-SYM Severity index: Regurgitation when lying down severity is the participant's assessment of regurgitation or reflux (fluid or liquid from your stomach coming up into throat) when lying down over the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Regurgitation When Lying Down severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity: Bitter Taste Severity4 weeksThe PAGI-SYM Severity index: Bitter Taste severity is the participant's assessment of bitter, acid, or sour taste in mouth during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Bitter Taste Severity score, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Constipation Severity4 weeksThe PAGI-SYM Severity index: Constipation severity is the participant's assessment of constipation during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Constipation Severity score, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
PAGI-SYM Severity Index: Diarrhea Severity4 weeksThe PAGI-SYM Severity index: Diarrhea severity is the participant's assessment of constipation during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Diarrhea Severity score, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Gastrointestinal Symptom Rating Scale (GSRS): Total Score4 weeksThe Gastrointestinal Symptom Rating Scale (GSRS) is a 15-item questionnaire for participants with gastrointestinal discomfort. The GSRS Total Score is the average of the 15 items. Each item is rated on a 0 to 7 scale, where 0 indicates no discomfort and 7 indicates very severe discomfort. The range of scores is 0 to 7, where higher scores are considered a worse outcome.The outcome measure, change from baseline in GSRS Total Score, has a possible range from -7 to +7, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Gastrointestinal Symptom Rating Scale (GSRS): Reflux Score4 weeksThe Gastrointestinal Symptom Rating Scale (GSRS) is a 15-item questionnaire for participants with gastrointestinal discomfort. The GSRS Reflux Score is a measure of how bothered the participant has been by acid reflux during the past week. The range of scores is 0 to 7, where 0 indicates no discomfort and 7 indicates very severe discomfort. Higher scores are considered a worse outcome.The outcome measure, change from baseline in GSRS Reflux Score, has a possible range from -7 to +7, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Gastrointestinal Symptom Rating Scale (GSRS): Abdominal Pain Score4 weekThe Gastrointestinal Symptom Rating Scale (GSRS) is a 15-item questionnaire for participants with gastrointestinal discomfort. The GSRS Abdominal Pain Score is a measure of how bothered the participant has been by pain or discomfort in the upper abdomen or pit of the stomach during the past week. The range of scores is 0 to 7, where 0 indicates no discomfort and 7 indicates very severe discomfort. Higher scores are considered a worse outcome.The outcome measure, change from baseline in GSRS Abdominal Pain Score, has a possible range from -7 to +7, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Gastrointestinal Symptom Rating Scale (GSRS): Indigestion Score4 weeksThe Gastrointestinal Symptom Rating Scale (GSRS) is a 15-item questionnaire for participants with gastrointestinal discomfort. The GSRS Indigestion Score is a measure of how bothered the participant has been by indigestion during the past week. The range of scores is 0 to 7, where 0 indicates no discomfort and 7 indicates very severe discomfort. Higher scores are considered a worse outcome.The outcome measure, change from baseline in GSRS Indigestion Score, has a possible range from -7 to +7, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Gastrointestinal Symptom Rating Scale (GSRS): Diarrhea Score4 weeksThe Gastrointestinal Symptom Rating Scale (GSRS) is a 15-item questionnaire for participants with gastrointestinal discomfort. The GSRS Diarrhea Score is a measure of how bothered the participant has been by diarrhea during the past week. The range of scores is 0 to 7, where 0 indicates no discomfort and 7 indicates very severe discomfort. Higher scores are considered a worse outcome.The outcome measure, change from baseline in GSRS Diarrhea Score, has a possible range from -7 to +7, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Gastrointestinal Symptom Rating Scale (GSRS): Constipation Score4 weeksThe Gastrointestinal Symptom Rating Scale (GSRS) is a 15-item questionnaire for participants with gastrointestinal discomfort. The GSRS Constipation Score is a measure of how bothered the participant has been by constipation during the past week. The range of scores is 0 to 7, where 0 indicates no discomfort and 7 indicates very severe discomfort. Higher scores are considered a worse outcome.The outcome measure, change from baseline in GSRS Constipation Score, has a possible range from -7 to +7, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Brief Pain Inventory: Severity Score4 weeksThe Brief Pain Inventory: Severity Score is the average of four questions in which the participant rates his or her pain: the worse pain in the past 24 hours, the least pain in the past 24 hours, average pain, and pain right now. The range of possible scores is 0 to 10, with higher scores indicating more severe pain. The outcome measure, change from baseline in Brief Pain Inventory Severity Score, has a possible range from -10 to +10, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Brief Pain Inventory: Interference Score4 weeksThe Brief Pain Inventory: Interference Score is the average of seven questions in which the participant rates the degree to which his or her pain interferes with daily functions and mood: general activity, mood, walking ability, normal work, relationships, sleep, enjoyment of life. The range of possible scores is 0 to 10, with higher scores indicating more interference caused by pain. The outcome measure, change from baseline in Brief Pain Inventory Interference Score, has a possible range from -10 to +10, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Beck Depression Inventory (BDI) Score4 weeksThe Beck Depression Inventory (BDI) survey is comprised of 21 multiple choice questions that relate to depression, cognition, and physical well-being and is used to quantify depression. The BDI total score is the sum of the 21 items, where each item ranges from 0 to 3 (lower scores are less severe, higher scores are more severe). The range for the BDI total score is 0 to 63, where lower scores indicate less depression and higher scores indicate more severe depression. The outcome measure, change from baseline in BDI score, has a possible range from -63 to +63, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
State-Trait Anxiety Inventory (STAI): State Anxiety Score4 weeksThe State-Trait Anxiety Inventory (STAI): State anxiety score is the sum of scores from 20 questions relating to state anxiety, which is a temporary state varying in intensity. The possible range of scores is from 20 to 80, with increasing scores considered a worse outcome. The outcome measure, change from baseline in STAI State Anxiety score, has a possible range from -60 to +60, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea (Hours)4 weeksMeasure Description: Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea is the participant's assessment of the number of hours of nausea experienced in the past 24 hours. The range is 0 to 24 hours. The outcome measure, change from baseline in number of hours of nausea, has a possible range from -24 to +24, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.
Satiety Test, Volume Consumed4 weeksThe Satiety Test measures the total volume of liquid (Ensure) that the participant is able to consume. The participant drinks 150 mL of Ensure every 5 minutes until he/she is completely full. The outcome measure is the change from baseline in volume of liquid (Ensure) consumed (mL), where positive values indicate a positive outcome (improvement).
Electrogastrography (EGG): Bradygastria (1-<2.5 Cpm) at 4 Weeks, Baseline Measurement4 weeksElectrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. Normal pacing is considered 2.5-3.7 cycles per minute (cpm). Bradygastria is when the rate of electrical activity in the stomach is \<2.5 cycles per minute for at least 1 minute (a decrease in electrical activity in the stomach). The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (here, baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where negative values for bradygastria indicate improvement (less time in a dysrhythmic state).
Electrogastrography (EGG): Bradygastria (1-<2.5 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement4 weeksElectrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. The 0-30 post-satiety measurement of the test is that taken 30 minutes after the participant consumes Ensure until feeling completely full. Normal pacing is considered 2.5-3.7 cycles per minute (cpm). Bradygastria is when the rate of electrical activity in the stomach is \<2.5 cycles per minute for at least 1 minute. Average power in frequency region is the % of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (baseline refers to test performed during screening, not baseline value of the EGG test) in % of time with frequencies in the ranges. Negative values for bradygastria indicate improvement (less time in a dysrhythmic state).
Electrogastrography (EGG): Normogastria (2.5-<3.8 Cpm) at 4 Weeks, Baseline Measurement4 weeksElectrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. Normal pacing (normogastria) is considered 2.5-3.7 cycles per minute (cpm). The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (here, baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where positive values for normal rates indicate an increase in the normal pacing (improvement).
Electrogastrography (EGG): Normogastria (2.5-<3.8 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement4 weeksElectrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. The 0-30 post-satiety measurement that taken 30 minutes after the participant consumes Ensure until feeling completely full. Normal pacing (normogastria) is considered 2.5-3.7 cycles per minute (cpm). The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where positive values for normal rates indicate an increase in the normal pacing (improvement).
Electrogastrography (EGG): Duodenal (>10-15 Cpm) at 4 Weeks, Baseline Measurement4 weeksElectrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. Normal pacing is considered 2.5-3.7 cycles per minute (cpm). Duodenal is when the rate of electrical activity in the stomach is \>10-15 cycles per minute for at least 1 minute. The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (here, baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where negative values for duodenal indicate improvement (less time in a dysrhythmic state).
Electrogastrography (EGG): Tachygastria (3.8-10 Cpm) at 4 Weeks, Baseline Measurement4 weeksElectrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. Normal pacing is considered 2.5-3.7 cycles per minute (cpm). Tachygastria is when the rate of electrical activity in the stomach is 3.8-10 cycles per minute for at least 1 minute (an increase in electrical activity in the stomach). The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (here, baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where negative values for tachygastria indicate improvement (less time in a dysrhythmic state).
Electrogastrography (EGG): Tachygastria (3.8-10 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement4 weeksElectrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. The 0-30 post-satiety measurement that taken 30 minutes after the participant consumes Ensure until feeling completely full. Normal pacing is considered 2.5-3.7 cycles per minute (cpm). Tachygastria is when the rate of electrical activity in the stomach is 3.8-10 cycles per minute for at least 1 minute (an increase in electrical activity in the stomach). The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (here, baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where negative values for tachygastria indicate improvement (less time in a dysrhythmic state).
Electrogastrography (EGG): Duodenal (>10-15 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement4 weeksElectrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. The 0-30 post-satiety measurement that taken 30 minutes after the participant consumes Ensure until feeling completely full. Normal pacing is considered 2.5-3.7 cycles per minute (cpm). Duodenal is when the rate of electrical activity in the stomach is \>10-15 cycles per minute for at least 1 minute. The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (here, baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where negative values for duodenal indicate improvement (less time in a dysrhythmic state).
State-Trait Anxiety Inventory (STAI): Trait Anxiety Score4 weeksThe State-Trait Anxiety Inventory (STAI): Trait anxiety score is the sum of scores from 20 questions pertaining to trait anxiety, which is a general propensity to be anxious. The possible range of scores is from 20 to 80, with increasing scores considered a worse outcome. The outcome measure, change from baseline in STAI Trait Anxiety score, has a possible range from -60 to +60, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Countries

United States

Participant flow

Recruitment details

Between April 2013 and July 2015, 126 patients were enrolled at eight participating medical centers, of whom 63 were randomized to aprepitant and 63 to placebo

Pre-assignment details

Adults, 18 years or older, with symptoms compatible with gastroparesis for 6 months, who had a 4-hour gastric emptying scintigraphy test and a total score \>21 on the Gastroparesis Cardinal Symptom Index (GCSI) and a visual analog scale (VAS) mean score of nausea after 7 days of \>25 mm on a 0 to 100 mm scale were considered for enrollment.

Participants by arm

ArmCount
Aprepitant
Aprepitant 125 mg per day Aprepitant: Aprepitant, 125 mg, 1 capsule, q.d. (everyday) with lunch for 4 weeks
63
Aprepitant-placebo
Placebo aprepitant 125mg per day Placebo: Aprepitant-placebo, 125 mg, 1 capsule, q.d. (everyday) with lunch for 4 weeks
63
Total126

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event63

Baseline characteristics

CharacteristicAprepitantAprepitant-placeboTotal
7-day nausea visual analog scale (VAS) score63.0 units on a scale
STANDARD_DEVIATION 21.5
64.1 units on a scale
STANDARD_DEVIATION 20.2
63.6 units on a scale
STANDARD_DEVIATION 20.8
Age, Continuous42.9 years
STANDARD_DEVIATION 14.8
46.8 years
STANDARD_DEVIATION 13.5
44.8 years
STANDARD_DEVIATION 14.3
Beck Depression Inventory (BDI): Severe depression, No.
Do not have severe depression
52 participants53 participants105 participants
Beck Depression Inventory (BDI): Severe depression, No.
Have severe depression
11 participants10 participants21 participants
Beck Depression Inventory (BDI): Total score18.0 units on a scale
STANDARD_DEVIATION 11.8
18.3 units on a scale
STANDARD_DEVIATION 12.6
18.2 units on a scale
STANDARD_DEVIATION 12.1
Body mass index (BMI)27.8 kg/m^2
STANDARD_DEVIATION 8.3
28.0 kg/m^2
STANDARD_DEVIATION 7.5
27.9 kg/m^2
STANDARD_DEVIATION 7.9
Brief Pain Inventory: Interference score4.4 units on a scale
STANDARD_DEVIATION 3.1
5.4 units on a scale
STANDARD_DEVIATION 3
4.9 units on a scale
STANDARD_DEVIATION 3.1
Brief Pain Inventory: severity score4.7 units on a scale
STANDARD_DEVIATION 2.5
4.6 units on a scale
STANDARD_DEVIATION 2.5
4.6 units on a scale
STANDARD_DEVIATION 2.5
Clinical Global Patient Impression Score (patient-rated)-0.6 units on a scale
STANDARD_DEVIATION 1.1
-0.7 units on a scale
STANDARD_DEVIATION 1.1
-0.6 units on a scale
STANDARD_DEVIATION 1.1
Diabetes type 1 or type 2, No.
Do not have diabetes type 1 or type 2
39 participants50 participants89 participants
Diabetes type 1 or type 2, No.
Have diabetes type 1 or type 2
24 participants13 participants37 participants
Diastolic blood pressure73.6 mmHg
STANDARD_DEVIATION 11.6
75.0 mmHg
STANDARD_DEVIATION 11.3
74.3 mmHg
STANDARD_DEVIATION 11.4
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Bloating severity2.2 units on a scale
STANDARD_DEVIATION 1.4
2.6 units on a scale
STANDARD_DEVIATION 1.1
2.4 units on a scale
STANDARD_DEVIATION 1.2
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Early satiety severity2.6 units on a scale
STANDARD_DEVIATION 1.1
2.7 units on a scale
STANDARD_DEVIATION 0.9
2.6 units on a scale
STANDARD_DEVIATION 1
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Excessive fullness severity2.7 units on a scale
STANDARD_DEVIATION 1.1
2.8 units on a scale
STANDARD_DEVIATION 0.9
2.7 units on a scale
STANDARD_DEVIATION 1
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): GCSI total score2.2 units on a scale
STANDARD_DEVIATION 0.9
2.3 units on a scale
STANDARD_DEVIATION 0.7
2.3 units on a scale
STANDARD_DEVIATION 0.8
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea9.0 hours of nausea
STANDARD_DEVIATION 7
9.3 hours of nausea
STANDARD_DEVIATION 7.1
9.2 hours of nausea
STANDARD_DEVIATION 7.1
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea severity2.6 units on a scale
STANDARD_DEVIATION 0.8
2.6 units on a scale
STANDARD_DEVIATION 0.8
2.6 units on a scale
STANDARD_DEVIATION 0.8
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Overall symptom severity2.5 units on a scale
STANDARD_DEVIATION 0.8
2.6 units on a scale
STANDARD_DEVIATION 0.7
2.6 units on a scale
STANDARD_DEVIATION 0.8
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Retching (No. episodes)2.0 number of episodes
STANDARD_DEVIATION 2.5
2.3 number of episodes
STANDARD_DEVIATION 2.8
2.1 number of episodes
STANDARD_DEVIATION 2.6
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Upper abdominal pain severity2.3 units on a scale
STANDARD_DEVIATION 1.2
2.3 units on a scale
STANDARD_DEVIATION 1
2.3 units on a scale
STANDARD_DEVIATION 1.1
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting (No. episodes)1.3 number of episodes
STANDARD_DEVIATION 1.6
1.1 number of episodes
STANDARD_DEVIATION 1.5
1.2 number of episodes
STANDARD_DEVIATION 1.5
Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting severity1.0 units on a scale
STANDARD_DEVIATION 1
0.9 units on a scale
STANDARD_DEVIATION 1
1.0 units on a scale
STANDARD_DEVIATION 1
Medications in past month: antiemetic
Did not take medication
19 participants14 participants33 participants
Medications in past month: antiemetic
Took medication
44 participants49 participants93 participants
Medications in past month: benzodiazepine or anxiolytic
Did not take medication
50 participants36 participants86 participants
Medications in past month: benzodiazepine or anxiolytic
Took medication
13 participants27 participants40 participants
Medications in past month: narcotic
Did not take medication
57 participants59 participants116 participants
Medications in past month: narcotic
Took medication
6 participants4 participants10 participants
Medications in past month: neuropathic or pain modulator...
Did not take medication
36 participants34 participants70 participants
Medications in past month: neuropathic or pain modulator...
Took medication
27 participants29 participants56 participants
Medications in past month: other antidepressant
Did not take medication
51 participants53 participants104 participants
Medications in past month: other antidepressant
Took medication
12 participants10 participants22 participants
Medications in past month: prokinetic
Did not take medication
38 participants45 participants83 participants
Medications in past month: prokinetic
Took medication
25 participants18 participants43 participants
Medications in past month: proton pump inhibitors
Did not take medication
21 participants12 participants33 participants
Medications in past month: proton pump inhibitors
Took medication
42 participants51 participants93 participants
Medications in past month: selective serotonin reuptake inhibitors (SSRI)
Did not take medication
54 participants45 participants99 participants
Medications in past month: selective serotonin reuptake inhibitors (SSRI)
Took medication
9 participants18 participants27 participants
Medications in past month: tricyclic antidepressant (TCA)
Did not take medication
52 participants47 participants99 participants
Medications in past month: tricyclic antidepressant (TCA)
Took medication
11 participants16 participants27 participants
PAGI-SYM Severity index: Bloating subscore3.3 units on a scale
STANDARD_DEVIATION 1.4
3.4 units on a scale
STANDARD_DEVIATION 1.4
3.4 units on a scale
STANDARD_DEVIATION 1.4
PAGI-SYM Severity index: Constipation severity2.9 units on a scale
STANDARD_DEVIATION 1.7
2.6 units on a scale
STANDARD_DEVIATION 1.8
2.8 units on a scale
STANDARD_DEVIATION 1.8
PAGI-SYM Severity index: Diarrhea severity1.6 units on a scale
STANDARD_DEVIATION 1.7
1.8 units on a scale
STANDARD_DEVIATION 1.7
1.7 units on a scale
STANDARD_DEVIATION 1.7
PAGI-SYM Severity index: Fullness/early satiety subscore3.7 units on a scale
STANDARD_DEVIATION 1
3.7 units on a scale
STANDARD_DEVIATION 0.8
3.7 units on a scale
STANDARD_DEVIATION 0.9
PAGI-SYM Severity index: Gastroesophageal Reflux (GERD) subscore2.4 units on a scale
STANDARD_DEVIATION 1.4
2.3 units on a scale
STANDARD_DEVIATION 1.4
2.3 units on a scale
STANDARD_DEVIATION 1.4
PAGI-SYM Severity index: Gastroparesis Cardinal Symptom Index (GCSI), total score3.4 units on a scale
STANDARD_DEVIATION 0.9
3.3 units on a scale
STANDARD_DEVIATION 0.7
3.4 units on a scale
STANDARD_DEVIATION 0.8
PAGI-SYM Severity index: Lower abdominal discomfort2.5 units on a scale
STANDARD_DEVIATION 1.6
2.6 units on a scale
STANDARD_DEVIATION 1.4
2.6 units on a scale
STANDARD_DEVIATION 1.5
PAGI-SYM Severity index: Lower abdominal pain2.4 units on a scale
STANDARD_DEVIATION 1.6
2.5 units on a scale
STANDARD_DEVIATION 1.4
2.5 units on a scale
STANDARD_DEVIATION 1.5
PAGI-SYM Severity index: Nausea severity4.2 units on a scale
STANDARD_DEVIATION 0.8
4.0 units on a scale
STANDARD_DEVIATION 0.9
4.1 units on a scale
STANDARD_DEVIATION 0.9
PAGI-SYM Severity index: Nausea/vomiting predominant symptom, No.
Nausea/vomiting not predominant symptom
25 participants24 participants49 participants
PAGI-SYM Severity index: Nausea/vomiting predominant symptom, No.
Nausea/vomiting predominant symptom
38 participants39 participants77 participants
PAGI-SYM Severity index: Nausea/vomiting severity subscore3.3 units on a scale
STANDARD_DEVIATION 1.1
2.8 units on a scale
STANDARD_DEVIATION 0.9
3.0 units on a scale
STANDARD_DEVIATION 1.1
PAGI-SYM Severity index: Retching severity3.0 units on a scale
STANDARD_DEVIATION 1.6
2.6 units on a scale
STANDARD_DEVIATION 1.3
2.8 units on a scale
STANDARD_DEVIATION 1.5
PAGI-SYM Severity index: Upper abdominal pain subscore3.4 units on a scale
STANDARD_DEVIATION 1.3
3.3 units on a scale
STANDARD_DEVIATION 1.3
3.4 units on a scale
STANDARD_DEVIATION 1.3
PAGI-SYM Severity index: Vomiting severity2.6 units on a scale
STANDARD_DEVIATION 1.8
1.9 units on a scale
STANDARD_DEVIATION 1.6
2.2 units on a scale
STANDARD_DEVIATION 1.7
Race/Ethnicity, Customized
Black
8 participants2 participants10 participants
Race/Ethnicity, Customized
Other
2 participants2 participants4 participants
Race/Ethnicity, Customized
White
53 participants59 participants112 participants
Region of Enrollment
United States
63 participants63 participants126 participants
Scintigraphic gastric emptying (GES): Delayed gastric emptying, No.
Do not have delayed gastric emptying
34 participants20 participants54 participants
Scintigraphic gastric emptying (GES): Delayed gastric emptying, No.
Have delayed gastric emptying
29 participants43 participants72 participants
Scintigraphic gastric emptying (GES): Percent gastric retention at 1 hour69.7 percent retention
STANDARD_DEVIATION 20
73.0 percent retention
STANDARD_DEVIATION 19.3
71.3 percent retention
STANDARD_DEVIATION 19.6
Scintigraphic gastric emptying (GES): Percent gastric retention at 2 hours45.6 percent retention
STANDARD_DEVIATION 24.9
53.1 percent retention
STANDARD_DEVIATION 23.4
49.4 percent retention
STANDARD_DEVIATION 24.4
Scintigraphic gastric emptying (GES): Percent gastric retention at 4 hours17.8 percent retention
STANDARD_DEVIATION 21.8
20.4 percent retention
STANDARD_DEVIATION 17.5
19.1 percent retention
STANDARD_DEVIATION 19.7
Scintigraphic gastric emptying (GES): Rapid gastric emptying, No.
Do not have rapid gastric emptying
59 participants61 participants120 participants
Scintigraphic gastric emptying (GES): Rapid gastric emptying, No.
Have rapid gastric emptying
4 participants2 participants6 participants
Sex: Female, Male
Female
49 Participants52 Participants101 Participants
Sex: Female, Male
Male
14 Participants11 Participants25 Participants
SF-36 Quality of Life (QOL): Mental component summary score41.4 units on a scale
STANDARD_DEVIATION 14.3
40.5 units on a scale
STANDARD_DEVIATION 13.5
40.9 units on a scale
STANDARD_DEVIATION 13.9
SF-36 Quality of Life (QOL): Physical component summary score33.5 units on a scale
STANDARD_DEVIATION 9.5
29.8 units on a scale
STANDARD_DEVIATION 8.8
31.6 units on a scale
STANDARD_DEVIATION 9.4
State-Trait Anxiety Inventory: Severe trait anxiety, No.
Do not have severe trait anxiety
46 participants44 participants90 participants
State-Trait Anxiety Inventory: Severe trait anxiety, No.
Have severe trait anxiety
17 participants19 participants36 participants
State-Trait Anxiety Inventory (STAI): Severe state anxiety, No.
Do not have severe state anxiety
48 participants44 participants92 participants
State-Trait Anxiety Inventory (STAI): Severe state anxiety, No.
Have severe state anxiety
15 participants19 participants34 participants
State-Trait Anxiety Inventory (STAI): State anxiety score39.6 units on a scale
STANDARD_DEVIATION 13.9
41.9 units on a scale
STANDARD_DEVIATION 13.9
40.7 units on a scale
STANDARD_DEVIATION 13.9
State-Trait Anxiety Inventory (STAI): Trait anxiety score40.3 units on a scale
STANDARD_DEVIATION 14.2
43.0 units on a scale
STANDARD_DEVIATION 13.2
41.6 units on a scale
STANDARD_DEVIATION 13.7
Systolic blood pressure121.1 mmHg
STANDARD_DEVIATION 17.8
122.1 mmHg
STANDARD_DEVIATION 15
121.6 mmHg
STANDARD_DEVIATION 16.4
Waist circumference90.9 cm
STANDARD_DEVIATION 17.2
91.3 cm
STANDARD_DEVIATION 18
91.1 cm
STANDARD_DEVIATION 17.5
Waist to hip ratio0.9 ratio
STANDARD_DEVIATION 0.1
0.9 ratio
STANDARD_DEVIATION 0.1
0.9 ratio
STANDARD_DEVIATION 0.1
Weight75.4 kg
STANDARD_DEVIATION 22.8
75.1 kg
STANDARD_DEVIATION 20.6
75.2 kg
STANDARD_DEVIATION 21.7

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 630 / 63
other
Total, other adverse events
21 / 6311 / 63
serious
Total, serious adverse events
1 / 630 / 63

Outcome results

Primary

Number of Participants With Improvement in Nausea

The primary outcome measure is a binary (0,1) variable indicating improvement in nausea or not in the mean of available visual analog scale (VAS) scores over the 28 day treatment period compared to the mean of VAS scores during the 7 day baseline period. The criteria for improvement are either a 25 mm or more reduction in mean VAS or attaining a mean VAS during the treatment period of \< 25 mm.

Time frame: 4 weeks

ArmMeasureValue (NUMBER)
AprepitantNumber of Participants With Improvement in Nausea29 participants
Aprepitant-placeboNumber of Participants With Improvement in Nausea25 participants
Comparison: Either 1) improvement in mean of available nausea VAS scores over 28-day treatment period compared to means of VAS during the 7-day baseline (BL) period being ≤ -25 mm, or 2) mean VAS after 28-days of treatment was \< 25 mm.p-value: 0.4395% CI: [0.8, 1.7]Cochran-Mantel-Haenszel
Secondary

Beck Depression Inventory (BDI) Score

The Beck Depression Inventory (BDI) survey is comprised of 21 multiple choice questions that relate to depression, cognition, and physical well-being and is used to quantify depression. The BDI total score is the sum of the 21 items, where each item ranges from 0 to 3 (lower scores are less severe, higher scores are more severe). The range for the BDI total score is 0 to 63, where lower scores indicate less depression and higher scores indicate more severe depression. The outcome measure, change from baseline in BDI score, has a possible range from -63 to +63, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantBeck Depression Inventory (BDI) Score-4.6 units on a scaleStandard Deviation 8.5
Aprepitant-placeboBeck Depression Inventory (BDI) Score-2.4 units on a scaleStandard Deviation 5.9
p-value: 0.0995% CI: [-4.7, 0.4]ANCOVA
Secondary

Blood Urea Nitrogen (BUN)

Change from baseline in blood urea nitrogen (BUN) (mg/dL)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantBlood Urea Nitrogen (BUN)-0.9 mg/dLStandard Deviation 4.6
Aprepitant-placeboBlood Urea Nitrogen (BUN)-0.3 mg/dLStandard Deviation 3.3
p-value: 0.4595% CI: [-2, 0.9]ANCOVA
Secondary

Brief Pain Inventory: Interference Score

The Brief Pain Inventory: Interference Score is the average of seven questions in which the participant rates the degree to which his or her pain interferes with daily functions and mood: general activity, mood, walking ability, normal work, relationships, sleep, enjoyment of life. The range of possible scores is 0 to 10, with higher scores indicating more interference caused by pain. The outcome measure, change from baseline in Brief Pain Inventory Interference Score, has a possible range from -10 to +10, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantBrief Pain Inventory: Interference Score-1.1 units on a scaleStandard Deviation 2.6
Aprepitant-placeboBrief Pain Inventory: Interference Score-1.0 units on a scaleStandard Deviation 2.6
p-value: 0.3895% CI: [-1.3, 0.5]ANCOVA
Secondary

Brief Pain Inventory: Severity Score

The Brief Pain Inventory: Severity Score is the average of four questions in which the participant rates his or her pain: the worse pain in the past 24 hours, the least pain in the past 24 hours, average pain, and pain right now. The range of possible scores is 0 to 10, with higher scores indicating more severe pain. The outcome measure, change from baseline in Brief Pain Inventory Severity Score, has a possible range from -10 to +10, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantBrief Pain Inventory: Severity Score-1.0 units on a scaleStandard Deviation 2.6
Aprepitant-placeboBrief Pain Inventory: Severity Score-0.7 units on a scaleStandard Deviation 2.3
p-value: 0.5395% CI: [-1.1, 0.6]ANCOVA
Secondary

Calcium

Change from baseline in calcium (mg/dL)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantCalcium-0.1 mg/dLStandard Deviation 0.4
Aprepitant-placeboCalcium-0.1 mg/dLStandard Deviation 0.4
p-value: 0.7695% CI: [-0.1, 0.1]ANCOVA
Secondary

Carbon Dioxide

Change from baseline in carbon dioxide (mEg/L)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantCarbon Dioxide-0.4 mEq/LStandard Deviation 2.5
Aprepitant-placeboCarbon Dioxide0.4 mEq/LStandard Deviation 2.4
p-value: 0.0795% CI: [-1.5, 0]ANCOVA
Secondary

Chloride

Change from baseline in chloride (mEq/L)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantChloride0.6 mEq/LStandard Deviation 3
Aprepitant-placeboChloride-0.2 mEq/LStandard Deviation 2.9
p-value: 0.5395% CI: [-0.7, 1.3]ANCOVA
Secondary

Clinical Global Patient Impression Score (Patient-rated)

The Clinical Global Patient Impression Score quantifies the overall relief of the patient's symptom, by asking the participant to consider how they felt over the past week in regard to stomach symptoms and overall well-being, and rate relief of symptoms in comparison to how they felt before entering the study. Possible scores are: -3=very considerably worse, -2=considerably worse, -1=somewhat worse, 0=unchanged, 1=somewhat better, 2=considerably better, 3=completely better. The range of scores is -3 to 3, where higher scores are considered a better outcome. The outcome measure, change from baseline in Clinical Global Patient Impression Score, has a possible range of -6 to +6, with positive values indicating a better outcome (improvement) and negative values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantClinical Global Patient Impression Score (Patient-rated)1.3 units on a scaleStandard Deviation 1.4
Aprepitant-placeboClinical Global Patient Impression Score (Patient-rated)1.0 units on a scaleStandard Deviation 1.4
p-value: 0.1795% CI: [-0.1, 0.7]ANCOVA
Secondary

Creatinine

Change from baseline in creatinine (mg/dL)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantCreatinine-0.1 mg/dLStandard Deviation 0.2
Aprepitant-placeboCreatinine0.0 mg/dLStandard Deviation 0.2
p-value: 0.00895% CI: [-0.2, 0]ANCOVA
Secondary

Electrogastrography (EGG): Bradygastria (1-<2.5 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement

Electrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. The 0-30 post-satiety measurement of the test is that taken 30 minutes after the participant consumes Ensure until feeling completely full. Normal pacing is considered 2.5-3.7 cycles per minute (cpm). Bradygastria is when the rate of electrical activity in the stomach is \<2.5 cycles per minute for at least 1 minute. Average power in frequency region is the % of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (baseline refers to test performed during screening, not baseline value of the EGG test) in % of time with frequencies in the ranges. Negative values for bradygastria indicate improvement (less time in a dysrhythmic state).

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantElectrogastrography (EGG): Bradygastria (1-<2.5 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement2.1 average power in frequency region, %Standard Deviation 17.7
Aprepitant-placeboElectrogastrography (EGG): Bradygastria (1-<2.5 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement0.5 average power in frequency region, %Standard Deviation 19.4
p-value: 0.4795% CI: [-4.1, 8.9]ANCOVA
Secondary

Electrogastrography (EGG): Bradygastria (1-<2.5 Cpm) at 4 Weeks, Baseline Measurement

Electrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. Normal pacing is considered 2.5-3.7 cycles per minute (cpm). Bradygastria is when the rate of electrical activity in the stomach is \<2.5 cycles per minute for at least 1 minute (a decrease in electrical activity in the stomach). The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (here, baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where negative values for bradygastria indicate improvement (less time in a dysrhythmic state).

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantElectrogastrography (EGG): Bradygastria (1-<2.5 Cpm) at 4 Weeks, Baseline Measurement-4.6 average power in frequency region, %Standard Deviation 24.6
Aprepitant-placeboElectrogastrography (EGG): Bradygastria (1-<2.5 Cpm) at 4 Weeks, Baseline Measurement2.8 average power in frequency region, %Standard Deviation 21.5
p-value: 0.2895% CI: [-12, 3.5]ANCOVA
Secondary

Electrogastrography (EGG): Duodenal (>10-15 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement

Electrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. The 0-30 post-satiety measurement that taken 30 minutes after the participant consumes Ensure until feeling completely full. Normal pacing is considered 2.5-3.7 cycles per minute (cpm). Duodenal is when the rate of electrical activity in the stomach is \>10-15 cycles per minute for at least 1 minute. The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (here, baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where negative values for duodenal indicate improvement (less time in a dysrhythmic state).

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantElectrogastrography (EGG): Duodenal (>10-15 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement-0.8 average power in frequency region, %Standard Deviation 7.3
Aprepitant-placeboElectrogastrography (EGG): Duodenal (>10-15 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement-0.5 average power in frequency region, %Standard Deviation 5.5
p-value: 0.3495% CI: [-2.6, 1]ANCOVA
Secondary

Electrogastrography (EGG): Duodenal (>10-15 Cpm) at 4 Weeks, Baseline Measurement

Electrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. Normal pacing is considered 2.5-3.7 cycles per minute (cpm). Duodenal is when the rate of electrical activity in the stomach is \>10-15 cycles per minute for at least 1 minute. The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (here, baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where negative values for duodenal indicate improvement (less time in a dysrhythmic state).

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week followup visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantElectrogastrography (EGG): Duodenal (>10-15 Cpm) at 4 Weeks, Baseline Measurement2.1 average power in frequency region, %Standard Deviation 13.5
Aprepitant-placeboElectrogastrography (EGG): Duodenal (>10-15 Cpm) at 4 Weeks, Baseline Measurement-0.2 average power in frequency region, %Standard Deviation 13.4
p-value: 0.5795% CI: [-3.4, 6.1]ANCOVA
Secondary

Electrogastrography (EGG): Normogastria (2.5-<3.8 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement

Electrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. The 0-30 post-satiety measurement that taken 30 minutes after the participant consumes Ensure until feeling completely full. Normal pacing (normogastria) is considered 2.5-3.7 cycles per minute (cpm). The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where positive values for normal rates indicate an increase in the normal pacing (improvement).

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantElectrogastrography (EGG): Normogastria (2.5-<3.8 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement1.0 average power in frequency region, %Standard Deviation 15.8
Aprepitant-placeboElectrogastrography (EGG): Normogastria (2.5-<3.8 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement0.8 average power in frequency region, %Standard Deviation 15.1
p-value: 0.4895% CI: [-3.6, 7.6]ANCOVA
Secondary

Electrogastrography (EGG): Normogastria (2.5-<3.8 Cpm) at 4 Weeks, Baseline Measurement

Electrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. Normal pacing (normogastria) is considered 2.5-3.7 cycles per minute (cpm). The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (here, baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where positive values for normal rates indicate an increase in the normal pacing (improvement).

Time frame: 4 weeks

ArmMeasureValue (MEAN)Dispersion
AprepitantElectrogastrography (EGG): Normogastria (2.5-<3.8 Cpm) at 4 Weeks, Baseline Measurement1.0 average power in frequency region, %Standard Deviation 19.9
Aprepitant-placeboElectrogastrography (EGG): Normogastria (2.5-<3.8 Cpm) at 4 Weeks, Baseline Measurement-1.0 average power in frequency region, %Standard Deviation 16.5
p-value: 0.6895% CI: [-4.5, 6.9]ANCOVA
Secondary

Electrogastrography (EGG): Tachygastria (3.8-10 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement

Electrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. The 0-30 post-satiety measurement that taken 30 minutes after the participant consumes Ensure until feeling completely full. Normal pacing is considered 2.5-3.7 cycles per minute (cpm). Tachygastria is when the rate of electrical activity in the stomach is 3.8-10 cycles per minute for at least 1 minute (an increase in electrical activity in the stomach). The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (here, baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where negative values for tachygastria indicate improvement (less time in a dysrhythmic state).

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantElectrogastrography (EGG): Tachygastria (3.8-10 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement-2.1 average power in frequency region, %Standard Deviation 9.7
Aprepitant-placeboElectrogastrography (EGG): Tachygastria (3.8-10 Cpm) at 4 Weeks, 0-30 Post-satiety Measurement-0.8 average power in frequency region, %Standard Deviation 14.1
p-value: 0.0195% CI: [-8.5, -1.2]ANCOVA
Secondary

Electrogastrography (EGG): Tachygastria (3.8-10 Cpm) at 4 Weeks, Baseline Measurement

Electrogastrography (EGG) is a test which records the electrical pacemaking signals that travel through the stomach muscles and control the muscles' contractions. Normal pacing is considered 2.5-3.7 cycles per minute (cpm). Tachygastria is when the rate of electrical activity in the stomach is 3.8-10 cycles per minute for at least 1 minute (an increase in electrical activity in the stomach). The average power in frequency region is the percentage of time that the dominant EGG frequencies are in a given frequency: bradygastria, normal, tachygastria, or duodenal. The outcome measure is the change from baseline (here, baseline refers to the test performed during screening, not the baseline value of the EGG test) in percent of time with frequencies in the ranges, where negative values for tachygastria indicate improvement (less time in a dysrhythmic state).

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantElectrogastrography (EGG): Tachygastria (3.8-10 Cpm) at 4 Weeks, Baseline Measurement1.5 average power in frequency region, %Standard Deviation 12.3
Aprepitant-placeboElectrogastrography (EGG): Tachygastria (3.8-10 Cpm) at 4 Weeks, Baseline Measurement-1.6 average power in frequency region, %Standard Deviation 12
p-value: 0.4395% CI: [-2.2, 5.1]ANCOVA
Secondary

Gastrointestinal Symptom Rating Scale (GSRS): Abdominal Pain Score

The Gastrointestinal Symptom Rating Scale (GSRS) is a 15-item questionnaire for participants with gastrointestinal discomfort. The GSRS Abdominal Pain Score is a measure of how bothered the participant has been by pain or discomfort in the upper abdomen or pit of the stomach during the past week. The range of scores is 0 to 7, where 0 indicates no discomfort and 7 indicates very severe discomfort. Higher scores are considered a worse outcome.The outcome measure, change from baseline in GSRS Abdominal Pain Score, has a possible range from -7 to +7, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 week

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastrointestinal Symptom Rating Scale (GSRS): Abdominal Pain Score-1.3 units on a scaleStandard Deviation 1.1
Aprepitant-placeboGastrointestinal Symptom Rating Scale (GSRS): Abdominal Pain Score-0.7 units on a scaleStandard Deviation 1
p-value: 0.00195% CI: [-1, -0.2]ANCOVA
Secondary

Gastrointestinal Symptom Rating Scale (GSRS): Constipation Score

The Gastrointestinal Symptom Rating Scale (GSRS) is a 15-item questionnaire for participants with gastrointestinal discomfort. The GSRS Constipation Score is a measure of how bothered the participant has been by constipation during the past week. The range of scores is 0 to 7, where 0 indicates no discomfort and 7 indicates very severe discomfort. Higher scores are considered a worse outcome.The outcome measure, change from baseline in GSRS Constipation Score, has a possible range from -7 to +7, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastrointestinal Symptom Rating Scale (GSRS): Constipation Score-0.8 units on a scaleStandard Deviation 1.3
Aprepitant-placeboGastrointestinal Symptom Rating Scale (GSRS): Constipation Score-0.4 units on a scaleStandard Deviation 1.5
p-value: 0.0895% CI: [-0.9, 0.1]ANCOVA
Secondary

Gastrointestinal Symptom Rating Scale (GSRS): Diarrhea Score

The Gastrointestinal Symptom Rating Scale (GSRS) is a 15-item questionnaire for participants with gastrointestinal discomfort. The GSRS Diarrhea Score is a measure of how bothered the participant has been by diarrhea during the past week. The range of scores is 0 to 7, where 0 indicates no discomfort and 7 indicates very severe discomfort. Higher scores are considered a worse outcome.The outcome measure, change from baseline in GSRS Diarrhea Score, has a possible range from -7 to +7, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastrointestinal Symptom Rating Scale (GSRS): Diarrhea Score-0.5 units on a scaleStandard Deviation 1.6
Aprepitant-placeboGastrointestinal Symptom Rating Scale (GSRS): Diarrhea Score0.1 units on a scaleStandard Deviation 1.3
p-value: 0.0595% CI: [-1, 0]ANCOVA
Secondary

Gastrointestinal Symptom Rating Scale (GSRS): Indigestion Score

The Gastrointestinal Symptom Rating Scale (GSRS) is a 15-item questionnaire for participants with gastrointestinal discomfort. The GSRS Indigestion Score is a measure of how bothered the participant has been by indigestion during the past week. The range of scores is 0 to 7, where 0 indicates no discomfort and 7 indicates very severe discomfort. Higher scores are considered a worse outcome.The outcome measure, change from baseline in GSRS Indigestion Score, has a possible range from -7 to +7, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The small number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastrointestinal Symptom Rating Scale (GSRS): Indigestion Score-0.7 units on a scaleStandard Deviation 1.3
Aprepitant-placeboGastrointestinal Symptom Rating Scale (GSRS): Indigestion Score-0.7 units on a scaleStandard Deviation 1.1
p-value: 0.2895% CI: [-0.6, 0.2]ANCOVA
Secondary

Gastrointestinal Symptom Rating Scale (GSRS): Reflux Score

The Gastrointestinal Symptom Rating Scale (GSRS) is a 15-item questionnaire for participants with gastrointestinal discomfort. The GSRS Reflux Score is a measure of how bothered the participant has been by acid reflux during the past week. The range of scores is 0 to 7, where 0 indicates no discomfort and 7 indicates very severe discomfort. Higher scores are considered a worse outcome.The outcome measure, change from baseline in GSRS Reflux Score, has a possible range from -7 to +7, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastrointestinal Symptom Rating Scale (GSRS): Reflux Score-1.1 units on a scaleStandard Deviation 1.5
Aprepitant-placeboGastrointestinal Symptom Rating Scale (GSRS): Reflux Score-0.7 units on a scaleStandard Deviation 1.6
p-value: 0.0695% CI: [-0.9, 0]ANCOVA
Secondary

Gastrointestinal Symptom Rating Scale (GSRS): Total Score

The Gastrointestinal Symptom Rating Scale (GSRS) is a 15-item questionnaire for participants with gastrointestinal discomfort. The GSRS Total Score is the average of the 15 items. Each item is rated on a 0 to 7 scale, where 0 indicates no discomfort and 7 indicates very severe discomfort. The range of scores is 0 to 7, where higher scores are considered a worse outcome.The outcome measure, change from baseline in GSRS Total Score, has a possible range from -7 to +7, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastrointestinal Symptom Rating Scale (GSRS): Total Score-0.8 units on a scaleStandard Deviation 0.9
Aprepitant-placeboGastrointestinal Symptom Rating Scale (GSRS): Total Score-0.5 units on a scaleStandard Deviation 0.9
p-value: 0.00795% CI: [-0.7, 0.1]ANCOVA
Secondary

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Bloating Severity

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Bloating Severity is the participant's assessment of bloating (feeling like you need to loosen your clothes) during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Bloating Severity, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Bloating Severity-0.6 units on a scaleStandard Deviation 1
Aprepitant-placeboGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Bloating Severity-0.4 units on a scaleStandard Deviation 0.8
p-value: 0.1295% CI: [-0.5, 0.1]ANCOVA
Secondary

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Early Satiety Severity

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Early Satiety Severity is the participant's assessment of early satiety (not able to finish normal-size meal) during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Early Satiety Severity, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Early Satiety Severity0.1 units on a scaleStandard Deviation 0.2
Aprepitant-placeboGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Early Satiety Severity0.08 units on a scaleStandard Deviation 0.3
p-value: 0.5195% CI: [-0.1, 0.1]ANCOVA
Secondary

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Excessive Fullness Severity

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Excessive Fullness Severity is the participant's assessment of excessive fullness (feeling excessively full after meals) during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Excessive Fullness Severity, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Excessive Fullness Severity-0.6 units on a scaleStandard Deviation 0.9
Aprepitant-placeboGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Excessive Fullness Severity-0.4 units on a scaleStandard Deviation 0.7
p-value: 0.2295% CI: [-0.4, 0.1]ANCOVA
Secondary

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): GCSI Total Score

The Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): GCSI total score is the average of 3 subscores: Nausea (average of two items: nausea and vomiting), Early Satiety (average of two items: not able to finish normal size meal and feeling excessively full after meals), and Bloating (feeling like you need to loosen your clothes). Each item is the participant's assessment of severity of the symptom during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in GCSI total score, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): GCSI Total Score-0.5 units on a scaleStandard Deviation 0.9
Aprepitant-placeboGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): GCSI Total Score-0.4 units on a scaleStandard Deviation 0.5
p-value: 0.2295% CI: [-0.4, 0.1]ANCOVA
Secondary

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea (Hours)

Measure Description: Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea is the participant's assessment of the number of hours of nausea experienced in the past 24 hours. The range is 0 to 24 hours. The outcome measure, change from baseline in number of hours of nausea, has a possible range from -24 to +24, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea (Hours)-2.5 hours of nauseaStandard Deviation 3.2
Aprepitant-placeboGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea (Hours)-1.2 hours of nauseaStandard Deviation 4.3
p-value: 0.0395% CI: [-2.8, -0.1]ANCOVA
Secondary

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea Severity

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea severity is the participant's assessment of nausea (feeling sick to your stomach as if you were going to vomit or throw up) during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in GCSI score, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea Severity-0.8 units on a scaleStandard Deviation 1
Aprepitant-placeboGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Nausea Severity-0.5 units on a scaleStandard Deviation 0.7
p-value: 0.0695% CI: [-0.6, 0]ANCOVA
Secondary

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Overall Symptom Severity

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Overall Symptom Severity is the participant's assessment of overall severity of gastroparesis symptoms during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome, change from baseline in Overall Symptom Severity score, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Overall Symptom Severity-0.7 units on a scaleStandard Deviation 0.8
Aprepitant-placeboGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Overall Symptom Severity-0.4 units on a scaleStandard Deviation 0.6
p-value: 0.0295% CI: [-0.6, -0.1]ANCOVA
Secondary

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Retching (No. Episodes)

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Retching is the participant's assessment of the number of episodes of retching (heaving as if to vomit, but nothing comes up) experienced in the past 24 hours. The outcome is the change from baseline in the number of retching episodes, where negative numbers indicate improvement in retching frequency, and positive numbers indicate worsening in retching frequency.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Retching (No. Episodes)-0.5 number of episodesStandard Deviation 1.5
Aprepitant-placeboGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Retching (No. Episodes)-0.7 number of episodesStandard Deviation 2
p-value: 0.7395% CI: [-0.4, 0.6]ANCOVA
Secondary

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Upper Abdominal Pain Severity

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Upper Abdominal Pain Severity is the participant's assessment of upper abdominal pain (above the navel) during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Upper Abdominal Pain Severity, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Upper Abdominal Pain Severity-0.7 units on a scaleStandard Deviation 0.9
Aprepitant-placeboGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Upper Abdominal Pain Severity-0.3 units on a scaleStandard Deviation 0.7
p-value: 0.0195% CI: [-0.7, -0.1]ANCOVA
Secondary

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting (No. Episodes)

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting is the participant's assessment of the number of episodes of vomiting experienced in the past 24 hours. The outcome is the change from baseleine in number of times vomited, where negative numbers indicate improvement in vomiting frequency, and positive numbers indicate worsening in vomiting frequency.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting (No. Episodes)-0.5 number of episodesStandard Deviation 1
Aprepitant-placeboGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting (No. Episodes)-0.4 number of episodesStandard Deviation 1.1
p-value: 0.9495% CI: [-0.3, 0.3]ANCOVA
Secondary

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting Severity

Gastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting Severity is the participant's assessment of vomiting during the past 24 hours, where 0=none, 1=mild, 2=moderate, 3=severe, and 4=very severe. The range of scores is 0 to 4, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Vomiting Severity, has a possible range from -4 to +4, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting Severity-0.4 units on a scaleStandard Deviation 0.8
Aprepitant-placeboGastroparesis Cardinal Symptom Index Daily Diary (GCSI-DD): Vomiting Severity-0.2 units on a scaleStandard Deviation 0.5
p-value: 0.2495% CI: [-0.3, 0.1]ANCOVA
Secondary

Glucose

Change from baseline in glucose (mg/dL)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantGlucose9.6 mg/dLStandard Deviation 66.8
Aprepitant-placeboGlucose7.0 mg/dLStandard Deviation 44.8
p-value: 0.7795% CI: [-18, 24.2]ANCOVA
Secondary

Hematocrit

Change from baseline in hematocrit

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantHematocrit-0.4 percentage RBCsStandard Deviation 2.7
Aprepitant-placeboHematocrit-0.4 percentage RBCsStandard Deviation 1.9
p-value: 0.7795% CI: [-0.7, 0.9]ANCOVA
Secondary

Hemoglobin

Change from baseline in hemoglobin (g/dL)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantHemoglobin-0.1 g/dLStandard Deviation 0.9
Aprepitant-placeboHemoglobin-0.2 g/dLStandard Deviation 0.6
p-value: 0.4495% CI: [-0.2, 0.4]ANCOVA
Secondary

Hemoglobin A1c (HbA1c)

Change from baseline in hemoglobin A1c (HbA1c) (%)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantHemoglobin A1c (HbA1c)-0.1 percent glycosylated hemoglobinStandard Deviation 1
Aprepitant-placeboHemoglobin A1c (HbA1c)0.1 percent glycosylated hemoglobinStandard Deviation 0.5
p-value: 0.9795% CI: [-0.5, 0.5]ANCOVA
Secondary

Liver Enzymes and Proteins: Alanine Aminotransferase (ALT)

Change from baseline in serum alanine aminotransferase (ALT), U/L

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantLiver Enzymes and Proteins: Alanine Aminotransferase (ALT)2.3 U/LStandard Deviation 36.6
Aprepitant-placeboLiver Enzymes and Proteins: Alanine Aminotransferase (ALT)0.8 U/LStandard Deviation 7.6
p-value: 0.5995% CI: [-7, 12.2]ANCOVA
Secondary

Liver Enzymes and Proteins: Albumin

Change from baseline in albumin (g/dL)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantLiver Enzymes and Proteins: Albumin-0.1 g/dLStandard Deviation 0.4
Aprepitant-placeboLiver Enzymes and Proteins: Albumin-0.1 g/dLStandard Deviation 0.4
p-value: 0.4695% CI: [-0.2, 0.1]ANCOVA
Secondary

Liver Enzymes and Proteins: Aspartate Aminotransferase (AST)

Change from baseline in aspartate aminotransferase (AST), U/L

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantLiver Enzymes and Proteins: Aspartate Aminotransferase (AST)3.1 U/LStandard Deviation 30.2
Aprepitant-placeboLiver Enzymes and Proteins: Aspartate Aminotransferase (AST)0.9 U/LStandard Deviation 7.7
p-value: 0.6195% CI: [-5.9, 10]ANCOVA
Secondary

Liver Enzymes and Proteins: Total Protein

Change from baseline in total protein (g/dL)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantLiver Enzymes and Proteins: Total Protein0.0 g/dLStandard Deviation 0.4
Aprepitant-placeboLiver Enzymes and Proteins: Total Protein-0.1 g/dLStandard Deviation 0.4
p-value: 0.2395% CI: [-0.1, 0.2]ANCOVA
Secondary

Magnesium

Change from baseline in magnesium (mg/dL)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantMagnesium0.0 mg/dLStandard Deviation 0.2
Aprepitant-placeboMagnesium-0.0 mg/dLStandard Deviation 0.2
p-value: 0.1895% CI: [0, 0.1]ANCOVA
Secondary

PAGI-SYM Severity: Bitter Taste Severity

The PAGI-SYM Severity index: Bitter Taste severity is the participant's assessment of bitter, acid, or sour taste in mouth during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Bitter Taste Severity score, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity: Bitter Taste Severity-0.8 units on a scaleStandard Deviation 1.6
Aprepitant-placeboPAGI-SYM Severity: Bitter Taste Severity-0.5 units on a scaleStandard Deviation 1.3
p-value: 0.195% CI: [-0.8, 0.1]ANCOVA
Secondary

PAGI-SYM Severity Index: Bloating Severity

The PAGI-SYM Severity index: Bloating Severity is the participant's assessment of bloating (feel like you need to loosen your clothes) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Bloating Severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Bloating Severity-1.2 units on a scaleStandard Deviation 1.4
Aprepitant-placeboPAGI-SYM Severity Index: Bloating Severity-0.5 units on a scaleStandard Deviation 1.3
p-value: 0.00195% CI: [-1.2, -0.3]ANCOVA
Secondary

PAGI-SYM Severity Index: Bloating Subscore

The PAGI-SYM Severity index: Bloating Subscore is the average of 2 items: bloating (feeling like you need to loosen your clothes) and stomach visibly larger. Each item is the participant's assessment of severity of the symptom during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The outcome measure, change from baseline in Bloating Subscore, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Bloating Subscore-1.2 units on a scaleStandard Deviation 1.2
Aprepitant-placeboPAGI-SYM Severity Index: Bloating Subscore-0.6 units on a scaleStandard Deviation 1.2
p-value: 0.00495% CI: [-1.2, -0.2]ANCOVA
Secondary

PAGI-SYM Severity Index: Chest Discomfort During Sleep Time Severity

The PAGI-SYM Severity index: Chest discomfort during sleep severity is the participant's assessment of feeling of discomfort inside the chest at night (during sleep time) over the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Chest Discomfort During Sleep Time severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Chest Discomfort During Sleep Time Severity-0.9 units on a scaleStandard Deviation 1.5
Aprepitant-placeboPAGI-SYM Severity Index: Chest Discomfort During Sleep Time Severity-0.6 units on a scaleStandard Deviation 1.4
p-value: 0.1795% CI: [-7, 0.1]ANCOVA
Secondary

PAGI-SYM Severity Index: Chest Discomfort During the Day Severity

The PAGI-SYM Severity index: Chest discomfort during the day severity is the participant's assessment of feeling of discomfort inside the chest during the day over the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Chest Discomfort During the Day severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Chest Discomfort During the Day Severity-1.1 units on a scaleStandard Deviation 1.5
Aprepitant-placeboPAGI-SYM Severity Index: Chest Discomfort During the Day Severity-0.7 units on a scaleStandard Deviation 1.4
p-value: 0.0995% CI: [-0.8, 0.1]ANCOVA
Secondary

PAGI-SYM Severity Index: Constipation Severity

The PAGI-SYM Severity index: Constipation severity is the participant's assessment of constipation during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Constipation Severity score, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Constipation Severity-0.8 units on a scaleStandard Deviation 1.6
Aprepitant-placeboPAGI-SYM Severity Index: Constipation Severity-0.3 units on a scaleStandard Deviation 1.5
p-value: 0.1395% CI: [-0.9, 0.1]ANCOVA
Secondary

PAGI-SYM Severity Index: Diarrhea Severity

The PAGI-SYM Severity index: Diarrhea severity is the participant's assessment of constipation during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Diarrhea Severity score, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Diarrhea Severity-0.1 units on a scaleStandard Deviation 1.4
Aprepitant-placeboPAGI-SYM Severity Index: Diarrhea Severity-0.2 units on a scaleStandard Deviation 1.3
p-value: 0.9895% CI: [-0.5, 0.4]ANCOVA
Secondary

PAGI-SYM Severity Index: Excessive Fullness Severity

PAGI-SYM Severity index: Excessive fullness severity is the participant's assessment of feeling excessively full after meals during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Excessive Fullness severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Excessive Fullness Severity-1.1 units on a scaleStandard Deviation 1.4
Aprepitant-placeboPAGI-SYM Severity Index: Excessive Fullness Severity-0.6 units on a scaleStandard Deviation 1.2
p-value: 0.0595% CI: [-0.9, 0]ANCOVA
Secondary

PAGI-SYM Severity Index: Fullness/Early Satiety Subscore

The PAGI-SYM Severity index: Fullness/Early Satiety Subscore is the average of 4 items: stomach fullness, not able to finish normal size meal, felling excessively full after meals, and loss of appetite. Each item is the participant's assessment of severity of the symptom during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Fullness/Early Satiety Subscore, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Fullness/Early Satiety Subscore-1.0 units on a scaleStandard Deviation 1.3
Aprepitant-placeboPAGI-SYM Severity Index: Fullness/Early Satiety Subscore-0.7 units on a scaleStandard Deviation 1
p-value: 0.1395% CI: [-0.7, 0.1]ANCOVA
Secondary

PAGI-SYM Severity Index: Gastroparesis Cardinal Symptom Index (GCSI) Score

PAGI-SYM Severity index: Gastroparesis Cardinal Symptom Index (GCSI) score is the average of 3 subscores: Nausea (average of 3 items: nausea, retching, and vomiting), Fullness/Early Satiety (average of 4 items: stomach fullness, not able to finish normal size meal, feeling excessively full after meals, and loss of appetite), and Bloating (average if 2 items: bloating and stomach visibly larger). Each item is the participant's assessment of severity of the symptom during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The outcome measure, change from baseline in GCSI score, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Gastroparesis Cardinal Symptom Index (GCSI) Score-1.3 units on a scaleStandard Deviation 1
Aprepitant-placeboPAGI-SYM Severity Index: Gastroparesis Cardinal Symptom Index (GCSI) Score-0.7 units on a scaleStandard Deviation 0.9
p-value: 0.00195% CI: [-0.9, -0.3]ANCOVA
Secondary

PAGI-SYM Severity Index: GERD Subscore

PAGI-SYM Severity index: Gastroesophageal Reflux (GERD) Subscore is the average of 7 items (heartburn during day, heartburn lying down, chest discomfort day, chest discomfort during sleep, regurgitation during day, regurgitation lying down, bitter taste in mouth). Each item is the participant's assessment of severity of the symptom, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in GERD Subscore, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: GERD Subscore-1.1 units on a scaleStandard Deviation 1.3
Aprepitant-placeboPAGI-SYM Severity Index: GERD Subscore-0.6 units on a scaleStandard Deviation 0.9
p-value: 0.00795% CI: [-0.8, -0.1]ANCOVA
Secondary

PAGI-SYM Severity Index: Heartburn During the Day Severity

The PAGI-SYM Severity index: Heartburn during the day severity is the participant's assessment of heartburn (burning pain rising in your chest or throat) during the day over the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Heartburn During the Day severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Heartburn During the Day Severity-1.2 units on a scaleStandard Deviation 1.5
Aprepitant-placeboPAGI-SYM Severity Index: Heartburn During the Day Severity-0.6 units on a scaleStandard Deviation 1.4
p-value: 0.0295% CI: [-1, -0.1]ANCOVA
Secondary

PAGI-SYM Severity Index: Heartburn When Lying Down Severity

The PAGI-SYM Severity index: Heartburn when lying down severity is the participant's assessment of heartburn (burning pain rising in your chest or throat) when lying down over the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Heartburn When Lying Down severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Heartburn When Lying Down Severity-1.2 units on a scaleStandard Deviation 1.5
Aprepitant-placeboPAGI-SYM Severity Index: Heartburn When Lying Down Severity-0.7 units on a scaleStandard Deviation 1.4
p-value: 0.0695% CI: [-0.9, 0]ANCOVA
Secondary

PAGI-SYM Severity Index: Loss of Appetite Severity

PAGI-SYM Severity index: Loss of appetite severity is the participant's assessment of loss of appetite during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Loss of appetite severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Loss of Appetite Severity-0.9 units on a scaleStandard Deviation 1.6
Aprepitant-placeboPAGI-SYM Severity Index: Loss of Appetite Severity-0.9 units on a scaleStandard Deviation 1.4
p-value: 0.7295% CI: [-0.4, 0.6]ANCOVA
Secondary

PAGI-SYM Severity Index: Lower Abdominal Discomfort Severity

The PAGI-SYM Severity index: Lower Abdominal Discomfort severity is the participant's assessment of lower abdominal discomfort (below the navel) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Lower Abdominal Discomfort severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Lower Abdominal Discomfort Severity-1.1 units on a scaleStandard Deviation 1.4
Aprepitant-placeboPAGI-SYM Severity Index: Lower Abdominal Discomfort Severity-0.6 units on a scaleStandard Deviation 1.5
p-value: 0.0495% CI: [-0.9, 0]ANCOVA
Secondary

PAGI-SYM Severity Index: Lower Abdominal Pain Severity

The PAGI-SYM Severity index: Lower Abdominal Pain severity is the participant's assessment of lower abdominal pain (below the navel) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Lower Abdominal Pain severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Lower Abdominal Pain Severity-0.8 units on a scaleStandard Deviation 1.4
Aprepitant-placeboPAGI-SYM Severity Index: Lower Abdominal Pain Severity-0.6 units on a scaleStandard Deviation 1.5
p-value: 0.1995% CI: [-0.8, 0.2]ANCOVA
Secondary

PAGI-SYM Severity Index: Nausea Severity

The PAGI-SYM Severity index: Nausea severity is the participant's assessment of nausea (feeling sick to your stomach as if you were going to vomit or throw up) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Nausea Severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Nausea Severity-1.8 units on a scaleStandard Deviation 1.5
Aprepitant-placeboPAGI-SYM Severity Index: Nausea Severity-1.0 units on a scaleStandard Deviation 1.4
p-value: 0.00595% CI: [-1.3, -0.2]ANCOVA
Secondary

PAGI-SYM Severity Index: Nausea/Vomiting Severity Subscore

The PAGI-SYM Severity index: Nausea/vomiting severity subscore is the average of 3 items: nausea, retching, and vomiting. Each item is the participant's assessment of severity of the symptom during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Nausea/vomiting severity subscore, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Nausea/Vomiting Severity Subscore-1.7 units on a scaleStandard Deviation 1.3
Aprepitant-placeboPAGI-SYM Severity Index: Nausea/Vomiting Severity Subscore-0.7 units on a scaleStandard Deviation 1.1
p-value: <0.00195% CI: [-1.2, -0.4]ANCOVA
Secondary

PAGI-SYM Severity Index: Regurgitation During the Day Severity

The PAGI-SYM Severity index: Regurgitation during the day severity is the participant's assessment of regurgitation or reflux (fluid or liquid from your stomach coming up into throat) during the day over the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Regurgitation During the Day severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Regurgitation During the Day Severity-1.2 units on a scaleStandard Deviation 1.7
Aprepitant-placeboPAGI-SYM Severity Index: Regurgitation During the Day Severity-0.5 units on a scaleStandard Deviation 1.5
p-value: 0.00995% CI: [-1.1, -0.2]ANCOVA
Secondary

PAGI-SYM Severity Index: Regurgitation When Lying Down Severity

The PAGI-SYM Severity index: Regurgitation when lying down severity is the participant's assessment of regurgitation or reflux (fluid or liquid from your stomach coming up into throat) when lying down over the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Regurgitation When Lying Down severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Regurgitation When Lying Down Severity-1.3 units on a scaleStandard Deviation 1.7
Aprepitant-placeboPAGI-SYM Severity Index: Regurgitation When Lying Down Severity-0.5 units on a scaleStandard Deviation 1.3
p-value: 0.00495% CI: [-1.2, -0.2]ANCOVA
Secondary

PAGI-SYM Severity Index: Retching Severity

The PAGI-SYM Severity index: Retching Severity is the participant's assessment of retching (heaving as if to vomit, but nothing comes up) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Retching Severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Retching Severity-1.7 units on a scaleStandard Deviation 1.6
Aprepitant-placeboPAGI-SYM Severity Index: Retching Severity-0.8 units on a scaleStandard Deviation 1.4
p-value: 0.00395% CI: [-2.3, -0.3]ANCOVA
Secondary

PAGI-SYM Severity Index: Stomach Distention Severity

The PAGI-SYM Severity index: Stomach distention severity is the participant's assessment of stomach distention (stomach or belly visibly larger) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Stomach Distention severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Stomach Distention Severity-1.1 units on a scaleStandard Deviation 1.3
Aprepitant-placeboPAGI-SYM Severity Index: Stomach Distention Severity-0.7 units on a scaleStandard Deviation 1.3
p-value: 0.0495% CI: [-0.9, 0]ANCOVA
Secondary

PAGI-SYM Severity Index: Stomach Fullness Severity

PAGI-SYM Severity index: Stomach Fullness severity is the participant's assessment of stomach fullness during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Stomach Fullness severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Stomach Fullness Severity-1.1 units on a scaleStandard Deviation 1.6
Aprepitant-placeboPAGI-SYM Severity Index: Stomach Fullness Severity-0.5 units on a scaleStandard Deviation 1.4
p-value: 0.0395% CI: [-1, -0.1]ANCOVA
Secondary

PAGI-SYM Severity Index: Unable to Finish Meal Severity

PAGI-SYM Severity index: Unable to Finish Meal severity is the participant's assessment of being unable to finish a normal size meal during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Unable to Finish Meal severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Unable to Finish Meal Severity-0.8 units on a scaleStandard Deviation 1.4
Aprepitant-placeboPAGI-SYM Severity Index: Unable to Finish Meal Severity-0.6 units on a scaleStandard Deviation 1.3
p-value: 0.1695% CI: [-0.8, 0.1]ANCOVA
Secondary

PAGI-SYM Severity Index: Upper Abdominal Discomfort Severity

The PAGI-SYM Severity index: Upper Abdominal Discomfort severity is the participant's assessment of upper abdominal discomfort (above the navel) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Upper Abdominal Discomfort severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Upper Abdominal Discomfort Severity-1.2 units on a scaleStandard Deviation 1.6
Aprepitant-placeboPAGI-SYM Severity Index: Upper Abdominal Discomfort Severity-0.7 units on a scaleStandard Deviation 1.3
p-value: 0.0795% CI: [-1, 0]ANCOVA
Secondary

PAGI-SYM Severity Index: Upper Abdominal Pain Severity

The PAGI-SYM Severity index: Upper Abdominal Pain severity is the participant's assessment of upper abdominal pain (above the navel) during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Upper Abdominal Pain severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Upper Abdominal Pain Severity-1.0 units on a scaleStandard Deviation 1.6
Aprepitant-placeboPAGI-SYM Severity Index: Upper Abdominal Pain Severity-0.5 units on a scaleStandard Deviation 1.4
p-value: 0.1495% CI: [-0.9, 0.1]ANCOVA
Secondary

PAGI-SYM Severity Index: Upper Abdominal Pain Subscore

The PAGI-SYM Severity index: Upper Abdominal Pain subscore is the average of 2 items (upper abdominal pain, upper abdominal discomfort). Each item is the participant's assessment of severity of the symptom during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Upper Abdominal Pain Subscore, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Upper Abdominal Pain Subscore-1.1 units on a scaleStandard Deviation 1.5
Aprepitant-placeboPAGI-SYM Severity Index: Upper Abdominal Pain Subscore-0.6 units on a scaleStandard Deviation 1.2
p-value: 0.0895% CI: [-0.9, 0.1]ANCOVA
Secondary

PAGI-SYM Severity Index: Vomiting Severity

The PAGI-SYM Severity index: Vomiting Severity is the participant's assessment of vomiting during the past 24 hours, where 0=none, 1=very mild, 2=mild, 3=moderate, 4=severe, and 5=very severe. The range of scores is 0 to 5, where higher scores are considered a worse outcome. The outcome measure, change from baseline in Vomiting Severity, has a possible range from -5 to +5, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPAGI-SYM Severity Index: Vomiting Severity-1.6 units on a scaleStandard Deviation 1.7
Aprepitant-placeboPAGI-SYM Severity Index: Vomiting Severity-0.5 units on a scaleStandard Deviation 1.4
p-value: 0.00195% CI: [-1.1, -0.3]ANCOVA
Secondary

Platelet Count

Change from baseline in platelet count

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPlatelet Count-7.3 x10^3 cells/microliterStandard Deviation 47.1
Aprepitant-placeboPlatelet Count4.8 x10^3 cells/microliterStandard Deviation 38.5
p-value: 0.1795% CI: [-26.5, 4.7]ANCOVA
Secondary

Potassium

Change from baseline in potassium (mEq/L)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantPotassium0.1 mEq/LStandard Deviation 0.5
Aprepitant-placeboPotassium0.0 mEq/LStandard Deviation 0.4
p-value: 0.5295% CI: [-1, 0.2]ANCOVA
Secondary

Red Blood Cell Count (RBC)

Change from baseline in red blood cell count (RBC)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantRed Blood Cell Count (RBC)-0.1 x10^6 cells/microliterStandard Deviation 0.3
Aprepitant-placeboRed Blood Cell Count (RBC)-0.1 x10^6 cells/microliterStandard Deviation 0.2
p-value: 0.8895% CI: [-0.1, 0.1]ANCOVA
Secondary

Satiety Test, Volume Consumed

The Satiety Test measures the total volume of liquid (Ensure) that the participant is able to consume. The participant drinks 150 mL of Ensure every 5 minutes until he/she is completely full. The outcome measure is the change from baseline in volume of liquid (Ensure) consumed (mL), where positive values indicate a positive outcome (improvement).

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEDIAN)
AprepitantSatiety Test, Volume Consumed-13.0 mL
Aprepitant-placeboSatiety Test, Volume Consumed9.2 mL
p-value: 0.495% CI: [-70.5, 28.1]ANCOVA
Secondary

Sodium

Change from baseline in sodium (mEq/L)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantSodium-0.3 mEq/LStandard Deviation 2.3
Aprepitant-placeboSodium-0.7 mEq/LStandard Deviation 2.9
p-value: 0.9395% CI: [-0.9, 1]ANCOVA
Secondary

State-Trait Anxiety Inventory (STAI): State Anxiety Score

The State-Trait Anxiety Inventory (STAI): State anxiety score is the sum of scores from 20 questions relating to state anxiety, which is a temporary state varying in intensity. The possible range of scores is from 20 to 80, with increasing scores considered a worse outcome. The outcome measure, change from baseline in STAI State Anxiety score, has a possible range from -60 to +60, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantState-Trait Anxiety Inventory (STAI): State Anxiety Score-3.1 units on a scaleStandard Deviation 8.7
Aprepitant-placeboState-Trait Anxiety Inventory (STAI): State Anxiety Score-1.7 units on a scaleStandard Deviation 10.6
p-value: 0.2895% CI: [-5.2, 1.5]ANCOVA
Secondary

State-Trait Anxiety Inventory (STAI): Trait Anxiety Score

The State-Trait Anxiety Inventory (STAI): Trait anxiety score is the sum of scores from 20 questions pertaining to trait anxiety, which is a general propensity to be anxious. The possible range of scores is from 20 to 80, with increasing scores considered a worse outcome. The outcome measure, change from baseline in STAI Trait Anxiety score, has a possible range from -60 to +60, with negative values indicating a better outcome (improvement) and positive values indicating a worse outcome.

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantState-Trait Anxiety Inventory (STAI): Trait Anxiety Score-1.8 units on a scaleStandard Deviation 8.8
Aprepitant-placeboState-Trait Anxiety Inventory (STAI): Trait Anxiety Score-0.7 units on a scaleStandard Deviation 8.4
p-value: 0.395% CI: [-4.6, 1.4]ANCOVA
Secondary

White Blood Cell Count (WBC)

Change from baseline in white blood cell count (WBC)

Time frame: 4 weeks

Population: The smaller number of participants analyzed is due to missing data at the 4-week follow-up visit.

ArmMeasureValue (MEAN)Dispersion
AprepitantWhite Blood Cell Count (WBC)-0.3 x10^9 cells/LStandard Deviation 1.5
Aprepitant-placeboWhite Blood Cell Count (WBC)-0.3 x10^9 cells/LStandard Deviation 1.8
p-value: 0.895% CI: [-0.6, 0.5]ANCOVA

Source: ClinicalTrials.gov · Data processed: Mar 8, 2026