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A Two-Part 26-Week Study of Etoricoxib as Treatment for Ankylosing Spondylitis (AS) (MK-0663-108)

Information source: Merck Sharp & Dohme Corp.
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Spondylitis, Ankylosing

Intervention: Part I - etoricoxib 60 mg (Drug); Part I - etoricoxib 90 mg (Drug); Part I- naproxen 1000 mg (Drug); Part I - Placebo to naproxen 500 mg (Drug); Part II- etoricoxib 60 mg (Drug); Part II- etoricoxib 90 mg (Drug); Part II- naproxen 1000 mg (Drug); Part I - Placebo to etoricoxib 60 mg (Drug); Part I - Placebo to etoricoxib 90 mg (Drug); Part II- Placebo to etoricoxib 60 mg (Drug); Part II - Placebo to etoricoxib 90 mg (Drug); Part II- Placebo to naproxen 500 mg (Drug)

Phase: Phase 3

Status: Completed

Sponsored by: Merck Sharp & Dohme Corp.

Official(s) and/or principal investigator(s):
Medical Director, Study Director, Affiliation: Merck Sharp & Dohme Corp.

Summary

The purpose of the study is to evaluate the efficacy and tolerability of two doses of etoricoxib compared to naproxen in the treatment of ankylosing spondylitis (AS). The primary objectives are to evaluate the improvement in Spinal Pain Intensity over 6 weeks of treatment with etoricoxib 90 mg or 60 mg compared to naproxen; and to evaluate the improvement in Spinal Pain Intensity over 6 weeks of treatment with etoricoxib 90 mg compared with etoricoxib 60 mg. Additionally the added benefit of increasing the dose of etoricoxib from 60 mg to 90 mg will be assessed in the second part of the study. The primary hypothesis is that the improvement in Spinal Pain Intensity visual analog scale (VAS) as measured by the time-weighted average (TWA) change from baseline over 6 weeks of treatment in Part I for etoricoxib 90 mg or 60 mg once daily is not inferior to naproxen 1000 mg.

Clinical Details

Official title: A Phase III, Two-Part, Randomized, Double-Blind, Active Comparator-Controlled, Multicenter Clinical Trial to Study the Relative Efficacy and Tolerability of Two Doses of MK-0663/Etoricoxib in Patients With Ankylosing Spondylitis

Study design: Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Primary outcome:

Time-Weighted Average Change From Baseline in the Spinal Pain Intensity in Study Part 1: Etoricoxib 90 mg vs. Naproxen

Time-Weighted Average Change From Baseline in the Spinal Pain Intensity in Study Part 1: Etoricoxib 60 mg vs. Naproxen

Number of Participants Discontinuing Study Treatment Due to an Adverse Event

Secondary outcome:

Time-Weighted Average Change From Baseline in the Spinal Pain Intensity in Study Part 1: Etoricoxib 90 mg vs. Etoricoxib 60 mg

Average Change From Week 6 in the Spinal Pain Intensity Over Weeks 10 and 12 in Study Part 2: Etoricoxib 60/90 mg vs. Etoricoxib 60mg (Non-responders From Part I)

Eligibility

Minimum age: 18 Years. Maximum age: N/A. Gender(s): Both.

Criteria:

Inclusion Criteria:

- Has a definite diagnosis of Ankylosing Spondylitis (AS) per Modified New York

Criteria made at least 6 months prior to screening

- Has a history of positive therapeutic benefit with non-steroidal anti-inflammatory

drugs (NSAIDs) and regular use of NSAIDS for past 30 days

- Has a score on Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) Question 2

at screening visit that is <77 mm

- Must demonstrate sufficient "flare" or worsening of AS pain

- Is in general good health (other than AS)

- Has had approved non-study antirheumatic therapy that has been at stable dosing AND

is not anticipated to undergo a change within the first 6 weeks of the protocol Exclusion Criteria:

- Has inflammatory arthritis (eg, rheumatoid arthritis, psoriatic arthritis,

crystal-induced arthritis, spondyloarthropathy, diffuse idiopathic skeletal hyperostosis [DISH]), polymyalgia rheumatica, a history of septic arthritis or intra-articular fracture of the study joint, Wilson's disease, hemachromatosis, ochronosis, or primary osteochondromatosis

- Has acute peripheral articular disease (onset within 4 weeks prior to screening) of

an active (painful or swollen) peripheral arthritis

- Has a history of gastric or biliary surgery, or small intestine surgery that causes

clinical malabsorption

- Has had an active peptic (gastric or duodenal) ulcer or history of inflammatory bowel

disease

- Has undergone coronary artery bypass graft surgery (CABG), angioplasty, or has a

cerebrovascular accident or transient ischemic attack within the past 6 months or has active ischemic heart disease, cerebrovascular disease, or peripheral vascular disease

- Has Class II-IV congestive heart failure

- Has uncontrolled hypertension

- Has a history of neoplastic disease, except adequately treated basal cell carcinoma

or carcinoma in situ of the cervix, or malignancies that have been successfully treated ≥ 5 years prior to screening

- Has history of leukemia, lymphoma, malignant melanoma, and myeloproliferative disease

- Allergy to etoricoxib or naproxen, or history of a significant clinical or laboratory

adverse experience associated with etoricoxib or naproxen

- Has a history or family history of an inherited or acquired bleeding disorder

- Is considered morbidly obese and demonstrates significant health problems stemming

from obesity, which would confound study participation or interpretation of study results

- Is pregnant, breast-feeding, or expecting to conceive during the study

- Has a clinical diagnosis of hepatic insufficiency defined as Child-Pugh score ≥ 5

Locations and Contacts

Additional Information

Starting date: September 2010
Last updated: July 7, 2015

Page last updated: August 23, 2015

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