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Safety, PK and Efficacy of PCS12852 on Gastric Emptying Rate in Patients With Moderate to Severe Gastroparesis

A Phase 2A, Placebo-controlled, Randomized, Dose Response Study of the Safety, Pharmacokinetics and Efficacy of PCS12852 on Gastric Emptying Rate Assessed by 13C Spirulina GEBT in Patients With Moderate to Severe Gastroparesis

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05270460
Acronym
MOMENTUM
Enrollment
25
Registered
2022-03-08
Start date
2022-03-09
Completion date
2022-10-06
Last updated
2023-07-21

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

Conditions

Gastroparesis

Keywords

Idiopathic Gastroparesis, Diabetic Gastroparesis

Brief summary

This is a randomized, double-blind, placebo-controlled study that will compare the effect of 2 different dosage regimens of PCS12852 on gastric emptying time to placebo in both idiopathic gastroparesis (IG) and diabetic gastroparesis (DG) patients.

Interventions

DRUGPCS12852

PCS12852 oral tablet administered once daily

DRUGPlacebo

Placebo comparator oral tablet administered once daily

Sponsors

Processa Pharmaceuticals
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Has documented diagnosis of moderate to severe DG or IG according to the ANMS GCSI-DD score during the Screening period (score of \>2 on average of the screening days). * Moderate to severe delay in gastric emptying rate as measured by the GEBT at Screening defined as GE half-time (t1/2) ≥ the 80th percentile of normative data as determined by Cairn Diagnostics. * Male or female patients 18 to 80 years of age, inclusive, at baseline. * Has continuous moderate to severe symptoms for gastroparesis (that is, chronic postprandial fullness, abdominal pain, postprandial nausea, vomiting, loss of appetite and/or early satiety) as assessed by the investigator for at least the past 3 months. * Has hemoglobin A1c (BbA1c) \< 11%. * Has Body Mass Index range between 18-40. * Women of childbearing potential must use one of the following acceptable methods of contraception throughout the study (1 month prior to Screening through 1 month after last dose of study medication): oral contraceptive medication, IUD, hormonal implants, injectable contraceptive methods, double-barrier methods, or tubal ligation. * Male patients must be willing to use acceptable contraceptive measures such as vasectomy or double-barrier method and refrain from sexual activity with any female who is pregnant or lactating. Female partners of study participants are asked to use acceptable methods of contraception.

Exclusion criteria

* Has acute, severe gastroenteritis and pronounced dehydration in the past 48 hours prior to Screening, chronic parenteral feeding or persistent severe vomiting. * Has known hypersensitivity to Spirulina, egg, milk products or wheat allergens. * Has a known disturbance of small intestinal absorption, exocrine pancreatic function, liver metabolism or pulmonary function. * Has a history of anorexia nervosa or bulimia. * Previous history of bezoars (the presence of retained liquid, bile, or small amounts of poorly organized food residue is permitted). * Prior surgery involving any gastrointestinal surgery, including the luminal gastrointestinal (GI) tract (cholecystectomy and appendectomy are permitted if performed \>3 months prior to baseline GEBT). * Any abdominal or pelvic surgery within the past 3 months. * Known history of the following GI conditions: inflammatory bowel disease; irritable bowel syndrome with diarrhea; or any other active disorder that could explain symptoms in the opinion of the investigator. * Has active diverticulitis, diverticular stricture, and other intestinal strictures. * Currently taking Glucagon-like peptide-1 (GLP-1) agonists, e.g. exenatide, liraglutide, semaglutide or dulaglutide, or pramlintide. * Has severe psychiatric illness (including suicidal tendencies or ideation) or neurological illness. * Use of narcotics/opioids, drugs used to treat gastroparesis within 3 days of the Screening GEBT test. * Clinically significant cardiac disease including but not limited to unstable angina, acute myocardial infarction within 6 months of baseline, and arrhythmia requiring therapy. * Patient has QTc interval ≥ 480 milliseconds on Screening ECG. * History of cerebral hemorrhage, cerebrovascular accident, transient ischemic attack, gastrointestinal bleeding, or retinal hemorrhage within 6 months of baseline. * Patient has active or history of neoplastic disease (except for adequately treated non-invasive basal cell and/or squamous cell carcinoma of the skin or carcinoma in situ of the cervix) within the past 5 years prior to baseline. * Presence of clinically significant medical condition(s) including but not limited to: renal, hepatic, cardiovascular, hematological, gastrointestinal, endocrine, pulmonary, neurological, psychiatric, substance abuse, and or any other clinically significant disease or disorder, which in the opinion of the investigator, may put the patient at risk due to participation in the study, influence the results of the study, and/or affect the patient's ability to complete the study. * History of or current diagnosis of active tuberculosis (TB); undergoing treatment for latent TB infection (LTBI); untreated LTBI (as determined by documented results within 3 months of the Screening Visit of a positive TB skin test with purified protein derivative with induration ≥ 5 mm, a positive QuantiFERON TB test or positive or borderline T-SPOT \[Elispot\] test); or positive TB test at Screening. Patients with documented completion of appropriate LTBI treatment would not be excluded and are not required to be tested. * Currently taking known P-gp and BCRP inhibitors or inducers and gastric acid reducing agents. E.g., proton pump inhibitors or H2 receptor antagonists. Other inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Change in Gastric Emptying Rate From Baseline as Determined by the Area Under the Curve (AUC) of the Gastric Emptying Rate~28 daysChange from baseline in gastric emptying rate was determined by the AUC by Gastric Emptying Breath Test (GEBT) at Day 28 after administration of PCS12852 or placebo.
Change in Gastric Emptying Rate From Baseline Using t50 Metric for Gastric Emptying Rate~28 daysTime for 50% gastric emptying (t50) metric assessed by the GEBT
Concentrations of PCS12852 in Plasma - CmaxDay 1PK parameters were estimated from concentration-time data using noncompartmental methods, as data permitted.
Concentrations of PCS12852 in Plasma - AUC0-lastDay 1PK parameters were estimated from concentration-time data using noncompartmental methods, as data permitted.

Secondary

MeasureTime frameDescription
Change From Baseline in the ANMS GCSI-DDDay 7Change from baseline in the American Neurogastroenterology and Motility Society Gastroparesis Cardinal Symptom Index Daily Diary (ANMS GCSI-DD). Scores range from 0-4 for the gastroparesis-related symptoms (nausea, early satiety, postprandial fullness, upper abdominal pain, and vomiting), with 4 meaning a worse outcome.

Countries

United States

Participant flow

Participants by arm

ArmCount
PCS12852 0.1mg
PCS12852 0.1mg tablet PCS12852: PCS12852 oral tablet administered once daily
9
PCS12852 0.5mg
PCS12852 0.5mg tablet PCS12852: PCS12852 oral tablet administered once daily
8
Placebo
Similar in appearance to active study drug Placebo: Placebo comparator oral tablet administered once daily
8
Total25

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event010
Overall StudyEarly Termination010

Baseline characteristics

CharacteristicPCS12852 0.1mgPCS12852 0.5mgPlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
2 Participants1 Participants2 Participants5 Participants
Age, Categorical
Between 18 and 65 years
7 Participants7 Participants6 Participants20 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants3 Participants6 Participants14 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants5 Participants2 Participants11 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants1 Participants0 Participants2 Participants
Race (NIH/OMB)
Black or African American
0 Participants2 Participants2 Participants4 Participants
Race (NIH/OMB)
More than one race
1 Participants1 Participants0 Participants2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
White
7 Participants3 Participants6 Participants16 Participants
Region of Enrollment
United States
9 participants8 participants8 participants25 participants
Sex: Female, Male
Female
7 Participants8 Participants7 Participants22 Participants
Sex: Female, Male
Male
2 Participants0 Participants1 Participants3 Participants
Woman of Childbearing Potential2 Participants1 Participants0 Participants3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 90 / 80 / 8
other
Total, other adverse events
0 / 95 / 80 / 8
serious
Total, serious adverse events
0 / 90 / 80 / 8

Outcome results

Primary

Change in Gastric Emptying Rate From Baseline as Determined by the Area Under the Curve (AUC) of the Gastric Emptying Rate

Change from baseline in gastric emptying rate was determined by the AUC by Gastric Emptying Breath Test (GEBT) at Day 28 after administration of PCS12852 or placebo.

Time frame: ~28 days

Population: The change from baseline to Day 28 in AUC was analyzed using an analysis of covariance (ANCOVA) model with fixed effects for treatment group and gastroparesis type (idiopathic gastroparesis \[IG\] or diabetic gastroparesis \[DG\]) and the baseline value as a continuous covariate. Only patients with a baseline and Day 28 value were included in the analysis. The parameters listed are the best comparison of the breath test as opposed to individual timepoints.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PCS12852 0.1mgChange in Gastric Emptying Rate From Baseline as Determined by the Area Under the Curve (AUC) of the Gastric Emptying Rate267.12 kPCD/minutesStandard Error 708.056
PCS12852 0.5mgChange in Gastric Emptying Rate From Baseline as Determined by the Area Under the Curve (AUC) of the Gastric Emptying Rate283.09 kPCD/minutesStandard Error 871.664
PlaceboChange in Gastric Emptying Rate From Baseline as Determined by the Area Under the Curve (AUC) of the Gastric Emptying Rate221.74 kPCD/minutesStandard Error 738.728
p-value: <0.05ANCOVA
Primary

Change in Gastric Emptying Rate From Baseline Using t50 Metric for Gastric Emptying Rate

Time for 50% gastric emptying (t50) metric assessed by the GEBT

Time frame: ~28 days

Population: The change from baseline to Day 28 using the t50 metric was analyzed using an analysis of covariance (ANCOVA) model with fixed effects for treatment group and gastroparesis type (idiopathic gastroparesis \[IG\] or diabetic gastroparesis \[DG\]) and the baseline value as a continuous covariate. Only patients with a baseline and Day 28 value were included in the analysis. The parameters listed are the best comparison of the breath test as opposed to individual timepoints.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PCS12852 0.1mgChange in Gastric Emptying Rate From Baseline Using t50 Metric for Gastric Emptying Rate-4.89 MinutesStandard Error 12.32
PCS12852 0.5mgChange in Gastric Emptying Rate From Baseline Using t50 Metric for Gastric Emptying Rate-26.64 MinutesStandard Error 14.971
PlaceboChange in Gastric Emptying Rate From Baseline Using t50 Metric for Gastric Emptying Rate-11.15 MinutesStandard Error 12.365
p-value: <0.05ANCOVA
Primary

Concentrations of PCS12852 in Plasma - AUC0-last

PK parameters were estimated from concentration-time data using noncompartmental methods, as data permitted.

Time frame: Day 28

Population: PK parameters were not calculated for patients with 2 or fewer detectable concentrations in their PK profile.

ArmMeasureValue (MEAN)Dispersion
PCS12852 0.1mgConcentrations of PCS12852 in Plasma - AUC0-last1.0987 h*ng/mLStandard Deviation 1.23183
PCS12852 0.5mgConcentrations of PCS12852 in Plasma - AUC0-last7.4218 h*ng/mLStandard Deviation 7.10856
p-value: <0.05Regression, Linear
Primary

Concentrations of PCS12852 in Plasma - AUC0-last

PK parameters were estimated from concentration-time data using noncompartmental methods, as data permitted.

Time frame: Day 1

Population: PK parameters were not calculated for patients with 2 or fewer detectable concentrations in their PK profile.

ArmMeasureValue (MEAN)Dispersion
PCS12852 0.1mgConcentrations of PCS12852 in Plasma - AUC0-last0.6331 h*ng/mLStandard Deviation 0.27524
PCS12852 0.5mgConcentrations of PCS12852 in Plasma - AUC0-last3.0612 h*ng/mLStandard Deviation 1.58834
p-value: <0.05Regression, Linear
Primary

Concentrations of PCS12852 in Plasma - Cmax

PK parameters were estimated from concentration-time data using noncompartmental methods, as data permitted.

Time frame: Day 28

Population: PK parameters were not calculated for patients with 2 or fewer detectable concentrations in their PK profile.

ArmMeasureValue (MEAN)Dispersion
PCS12852 0.1mgConcentrations of PCS12852 in Plasma - Cmax0.11984 ng/mLStandard Deviation 0.06877
PCS12852 0.5mgConcentrations of PCS12852 in Plasma - Cmax0.48100 ng/mLStandard Deviation 0.255856
p-value: <0.05Regression, Linear
Primary

Concentrations of PCS12852 in Plasma - Cmax

PK parameters were estimated from concentration-time data using noncompartmental methods, as data permitted.

Time frame: Day 1

Population: PK parameters were not calculated for patients with 2 or fewer detectable concentrations in their PK profile.

ArmMeasureValue (MEAN)Dispersion
PCS12852 0.1mgConcentrations of PCS12852 in Plasma - Cmax0.12211 ng/mLStandard Deviation 0.039216
PCS12852 0.5mgConcentrations of PCS12852 in Plasma - Cmax0.59986 ng/mLStandard Deviation 0.329187
p-value: <0.05Regression, Linear
Secondary

Change From Baseline in the ANMS GCSI-DD

Change from baseline in the American Neurogastroenterology and Motility Society Gastroparesis Cardinal Symptom Index Daily Diary. Scores range from 0-4 for the gastroparesis-related symptoms (nausea, early satiety, postprandial fullness, upper abdominal pain, and vomiting), with 4 meaning a worse outcome.

Time frame: Day 21

Population: Scores were not able to be calculated for some patients in the 0.5mg group due to 2 patients discontinuing.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PCS12852 0.1mgChange From Baseline in the ANMS GCSI-DD-0.57 Units on a scaleStandard Error 0.237
PCS12852 0.5mgChange From Baseline in the ANMS GCSI-DD-1.12 Units on a scaleStandard Error 0.29
PlaceboChange From Baseline in the ANMS GCSI-DD-0.91 Units on a scaleStandard Error 0.228
p-value: <0.05ANCOVA
Secondary

Change From Baseline in the ANMS GCSI-DD

Change from baseline in the American Neurogastroenterology and Motility Society Gastroparesis Cardinal Symptom Index Daily Diary. Scores range from 0-4 for the gastroparesis-related symptoms (nausea, early satiety, postprandial fullness, upper abdominal pain, and vomiting), with 4 meaning a worse outcome.

Time frame: Day 28

Population: Scores were not able to be calculated for some patients in the 0.5mg group due to 2 patients discontinuing.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PCS12852 0.1mgChange From Baseline in the ANMS GCSI-DD-0.61 Units on a scaleStandard Error 0.254
PCS12852 0.5mgChange From Baseline in the ANMS GCSI-DD-1.48 Units on a scaleStandard Error 0.311
PlaceboChange From Baseline in the ANMS GCSI-DD-1.00 Units on a scaleStandard Error 0.244
p-value: <0.05ANCOVA
Secondary

Change From Baseline in the ANMS GCSI-DD

Change from baseline in the American Neurogastroenterology and Motility Society Gastroparesis Cardinal Symptom Index Daily Diary. Scores range from 0-4 for the gastroparesis-related symptoms (nausea, early satiety, postprandial fullness, upper abdominal pain, and vomiting), with 4 meaning a worse outcome.

Time frame: Day 14

Population: Scores were not able to be calculated for some patients in the 0.5mg group due to 2 patients discontinuing.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PCS12852 0.1mgChange From Baseline in the ANMS GCSI-DD-0.62 Units on a scaleStandard Error 0.218
PCS12852 0.5mgChange From Baseline in the ANMS GCSI-DD-1.06 Units on a scaleStandard Error 0.267
PlaceboChange From Baseline in the ANMS GCSI-DD-0.82 Units on a scaleStandard Error 0.21
p-value: <0.05ANCOVA
Secondary

Change From Baseline in the ANMS GCSI-DD

Change from baseline in the American Neurogastroenterology and Motility Society Gastroparesis Cardinal Symptom Index Daily Diary (ANMS GCSI-DD). Scores range from 0-4 for the gastroparesis-related symptoms (nausea, early satiety, postprandial fullness, upper abdominal pain, and vomiting), with 4 meaning a worse outcome.

Time frame: Day 7

Population: Scores were not able to be calculated for some patients in 0.5mg group due to 2 patients discontinuing.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PCS12852 0.1mgChange From Baseline in the ANMS GCSI-DD-0.02 score on a scaleStandard Error 0.141
PCS12852 0.5mgChange From Baseline in the ANMS GCSI-DD-0.69 score on a scaleStandard Error 0.171
PlaceboChange From Baseline in the ANMS GCSI-DD-0.58 score on a scaleStandard Error 0.138
p-value: <0.05ANCOVA

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