Efficacy and Safety Study of HZT-501 in Reducing the Risk of Ibuprofen-associated Ulcers

Phase 3

Completed

Brief Summary: The purpose of this study is to evaluate whether HZT-501 is effective in reducing the rate of development of ibuprofen-associated ulcers in patients who require long-term daily use of ibuprofen.

Detailed Description: HZT-501 is a combination product including ibuprofen and the acid reducing agent famotidine. The study is designed to determine whether the combination product reduces the rate of ulcer development in subjects who require long-term daily use of ibuprofen.

Subjects will be assigned randomly, in approximately a 2:1 ratio, to treatment with either HZT-501 (ibuprofen 800 mg/famotidine 26.6 mg) or ibuprofen (800 mg) three times daily for a 24 week treatment period or until they develop either an endoscopically-diagnosed upper gastrointestinal ulcer and/or prohibitive toxicity. Subjects will visit the study center for Screening and at Weeks 4, 8, 16, and 24. Physical exams will be performed, and clinical laboratory measurements made, at selected times during the study. Endoscopic exams will be performed during Screening and at Weeks 8, 16, and 24. Subjects will be contacted four weeks following study completion.

Study with completed results acquired from Horizon in 2024

Recruitment & Eligibility

Inclusion Criteria

Expected to require daily administration of a nonsteroidal anti-inflammatory drug (NSAID) for at least the coming six months for conditions such as osteoarthritis, rheumatoid arthritis, chronic low back pain, chronic regional pain syndrome, and chronic soft tissue pain.
Did not use a NSAID within the 30 days prior to study entry

Exclusion Criteria

History of erosive esophagitis
History of any of the following serious gastrointestinal complications:
- perforation of ulcers,
- gastric outlet obstruction due to ulcers,
- gastrointestinal bleeding.
Active cardiac, renal, and/or hepatic disease
Current Helicobacter pylori (H. pylori) infection
Use of an acid suppressant agent, misoprostol, or more than 325 mg/day of aspirin within the 14 days prior to study entry.
Uncontrolled diabetes
Uncontrolled hypertension
Positive pregnancy test at screening
Positive test at Screening for human immunodeficiency virus (HIV), hepatitis B, or hepatitis C.
Currently participating, or participation within 30 days prior to study entry, in an investigational drug study

Please note that there are other additional criteria. The study center will determine if patients meet all of the criteria.

Arm && Interventions

Group	Intervention	Description
1	HZT-501	HZT-501: Ibuprofen 800mg/Famotidine 26.6mg
2	Ibuprofen	Ibuprofen 800mg

Primary Outcome Measures

Name	Time	Method
Number of Subjects Who Develop Endoscopically-diagnosed Upper Gastrointestinal Ulcers Confirmed by Endoscopy.	24 weeks	The primary efficacy endpoint was the number of subjects with upper gastrointestinal (i.e., gastric and/or duodenal) ulcer at any time throughout 24 weeks of treatment. An ulcer was defined as a mucosal break of at least 3 mm in diameter with unequivocal depth. A subject is considered to have completed the study if all scheduled assessments up through the Week 24 visit have been performed.

Secondary Outcome Measures

Name	Time	Method
Number of Subjects Who Develop Endoscopically-diagnosed Gastric Ulcers During the 24-week Treatment Period.	24 weeks	The secondary efficacy endpoint was the number of subjects with gastric ulcer at any time throughout 24 weeks of treatment. An ulcer was defined as a mucosal break of at least 3 mm in diameter with unequivocal depth. A subject is considered to have completed the study if all scheduled assessments up through the Week 24 visit have been performed.
Number of Subjects Who Develop Endoscopically-diagnosed Duodenal Ulcers During the 24-week Treatment Period.	24 weeks	The secondary efficacy endpoint was the number of subjects with duodenal ulcer at any time throughout the 24 weeks of treatment. An ulcer was defined as a mucosal break of at least 3 mm in diameter with unequivocal depth. A subject is considered to have completed the study if all scheduled assessments up through the Week 24 visit have been performed.
The Incidence Rate of NSAID-associated Serious Gastrointestinal Complications.	24 weeks	The secondary efficacy endpoint was the number of subjects developing a NSAID-associated serious GI complication at any time throughout 6 months of treatment. A NSAID-associated serious GI complication was defined as a perforation of ulcers, gastric outlet obstruction due to ulcers, and/or GI bleeding.