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Clinical Trial Evaluating Gastrointestinal Damage Following Administration PL3100 or Naproxen in At-Risk Adults

A Phase 2 Clinical Trial Evaluating the Incidence of Upper Gastrointestinal Mucosal Damage Following Administration of Either PL3100 or Naproxen in Subjects Who Are at Risk for Developing NSAID-Associated GI Damage

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01139190
Enrollment
77
Registered
2010-06-08
Start date
2010-07-31
Completion date
2010-12-31
Last updated
2016-04-11

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

Conditions

Erosion, Gastroduodenal Ulcerations

Keywords

NSAID-induced gastroduodenal ulcerations or erosion

Brief summary

The purpose of this study is to determine the subchronic gastrointestinal (GI) safety of PL3100 versus Naproxen in normal healthy volunteers.

Interventions

DRUGPL3100

Oral administration

DRUGNaproxen

Oral administration

Sponsors

National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
CollaboratorNIH
PLx Pharma
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
50 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

(Selected) * Male and female healthy adult subjects

Exclusion criteria

(Selected) * Subject has protocol specified significant medical history. * Subject is currently participating, or has participated within 30 days prior to study entry, in an investigational drug study. * Subject has hypersensitivity or contraindications to naproxen, ibuprofen, or other NSAID.

Design outcomes

Primary

MeasureTime frameDescription
Degree of GI Injury at Day 1515 daysDegree of mucosal injury was assessed by endoscopy, with the following scoring system: Score 0: No Injury Score 1: 1 to 10 petechiae Score 2: \> 10 petechiae or 1 to 5 erosions Score 3: 6 to 10 erosions Score 4: \> 10 erosions and/or an ulcer

Countries

United States

Participant flow

Recruitment details

Recruitment initiated: 01 July 2010, Multicenter trial: Private practice setting and Veterans Administration gastroenterology clinic.

Pre-assignment details

No run-in period; subjects screened and enrolled based on review and confirmation of eligibility per inclusion/exclusion criteria. Wash-out period for NSAIDs and gastroprotective agents.

Participants by arm

ArmCount
PL3100
Subjects were to take 500 mg of PL3100 (two 250 mg capsules) of study drug twice a day for a total duration of 14.5 days.
38
Naproxen
Subjects were to take 500 mg of Naproxen (two 250 mg tablets) of study drug twice a day for a total duration of 14.5 days.
39
Total77

Baseline characteristics

CharacteristicPL3100NaproxenTotal
Age, Continuous56.7 years
STANDARD_DEVIATION 5.97
55.6 years
STANDARD_DEVIATION 4.56
56.1 years
STANDARD_DEVIATION 5.29
Sex: Female, Male
Female
22 Participants20 Participants42 Participants
Sex: Female, Male
Male
16 Participants19 Participants35 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
23 / 387 / 39
serious
Total, serious adverse events
0 / 380 / 39

Outcome results

Primary

Degree of GI Injury at Day 15

Degree of mucosal injury was assessed by endoscopy, with the following scoring system: Score 0: No Injury Score 1: 1 to 10 petechiae Score 2: \> 10 petechiae or 1 to 5 erosions Score 3: 6 to 10 erosions Score 4: \> 10 erosions and/or an ulcer

Time frame: 15 days

Population: Per Protocol Population: subset of participants who had an endoscopy performed at Day 15 reviewed by both blinded endoscopists, was at least 85% compliant with taking the study drug (based on pill counts), who took the final dose drug on the day of the second endoscopy, and who had no other protocol violations that would affect assessments.

ArmMeasureGroupValue (NUMBER)
PL3100Degree of GI Injury at Day 15Gastroduodenal Score of 3 or Higher23 participants
PL3100Degree of GI Injury at Day 15Gastroduodenal Score of 2 or Less11 participants
NaproxenDegree of GI Injury at Day 15Gastroduodenal Score of 3 or Higher20 participants
NaproxenDegree of GI Injury at Day 15Gastroduodenal Score of 2 or Less13 participants

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