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Study Of Celecoxib Or Diclofenac And Omeprazole For Gastrointestinal (GI) Safety In High GI Risk Patients With Arthritis

Double-Blind, Triple Dummy, Parallel-Group, Randomized, Six-Month Study To Compare Celecoxib (200 Mg BID) With Diclofenac Sr (75 Mg BID) Plus Omeprazole (20 Mg QD) For Gastrointestinal Events In Subjects With Osteoarthritis And Rheumatoid Arthritis At High-Risk Of Gastrointestinal Adverse Events

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00141102
Acronym
CONDOR
Enrollment
4484
Registered
2005-09-01
Start date
2005-10-31
Completion date
2009-05-31
Last updated
2021-03-03

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

Conditions

Arthritis, Rheumatoid, Osteoarthritis

Keywords

GI events in high risk GI arthritis patients

Brief summary

To determine whether celecoxib is superior to combined therapy with diclofenac and omeprazole in the incidence of clinically significant upper and/or lower gastrointestinal (GI) events in high GI risk subjects with osteoarthritis and/or rheumatoid arthritis.

Interventions

DRUGCelecoxib

Participants are assigned to one of two groups in parallel for the duration of the study

DRUGDiclofenac + Omeprazole

Participants are assigned to one of two groups in parallel for the duration of the study

Sponsors

Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Lead SponsorINDUSTRY

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

* Subjects with a clinical diagnosis of OA or RA and who are expected to require regular anti-inflammatory therapy for arthritis symptom management * Subjects must be aged 60 years or older with or without a history of gastroduodenal (GD) ulceration; or be of any age 18 years or older and have had documented evidence of GD ulceration 90 days or more prior to the screening visit

Exclusion criteria

* Active GD ulceration or GD ulceration within 90 days of the screening visit. * Concomitant use of low dose aspirin * Previous MI, stroke or significant vascular disease.

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects With Clinically Significant Upper and/or Lower Gastrointestinal Events (CSULGIEs)6 month treatment durationCSULGIE=any of the following: gastroduodenal (GD) hemorrhage; gastric outlet obstruction; GD, small or large bowel perforation; small or large bowel hemorrhage; clinically significant anemia of defined GI origin; acute GI hemorrhage of unknown origin, including presumed small bowel hemorrhage; clinically significant anemia of presumed occult GI origin including possible small bowel blood loss. Subjects were assessed by an independent GI Events Adjudication Committee, who were blinded to study treatment assignments.

Secondary

MeasureTime frameDescription
Number of Subjects With CSULGIES or Symptomatic Ulcers (SUs)6 month treatment durationCSULGIE=any of the following: GD hemorrhage; gastric outlet obstruction; GD, small or large bowel perforation; small or large bowel hemorrhage; clinically significant anemia of defined GI origin; acute GI hemorrhage of unknown origin, including presumed small bowel hemorrhage; clinically significant anemia of presumed occult GI origin including possible small bowel blood loss. Subjects with evaluation at an event visit and found to have an ulcer on endoscopy, but did not meet any criteria considered for the primary endpoint by the GI committee were designated as having an SU.
Change From Baseline in Patient's Global Arthritis Assessment at Month 6/Early Termination (ET)Month 6/Early Termination (ET)Subjects rated response to question: Considering all the ways the osteoarthritis or rheumatoid arthritis affects you, how are you doing today? using a 1 to 5 grading scale where 1=very good and 5=very poor.
Number of Subjects With SUs6 month treatment durationSubjects with evaluation at an event visit and found to have an ulcer on endoscopy, but did not meet any criteria considered for the primary endpoint by the GI committee were designated as having an SU.
Number of Subjects With CSULGIEs by History of GD Ulceration6 month treatment durationCSULGIE=any of the following: gastroduodenal (GD) hemorrhage; gastric outlet obstruction; GD, small or large bowel perforation; small or large bowel hemorrhage; clinically significant anemia of defined GI origin; acute GI hemorrhage of unknown origin, including presumed small bowel hemorrhage; clinically significant anemia of presumed occult GI origin including possible small bowel blood loss. Subjects were assessed by an independent GI Events Adjudication Committee, who were blinded to study treatment assignments.
Number of Subjects With Moderate to Severe Abdominal Symptoms6 month treatment durationAbdominal symptoms were defined by the Medical Dictionary for Regulatory Activities MedDRA System Organ Class (SOC) 'Gastrointestinal Disorders' and keeping high level group term (HLGT) equal to Gastrointestinal Signs and Symptoms.
Number of Subjects Withdrawn Due to GI Adverse Events (AEs)6 month treatment durationGI AEs were defined using MedDRA SOC Gastrointestinal Disorders but excluding the following HLGTs: Benign Neoplasms Gastrointestinal; Dental and Gingival Conditions; Oral Soft Tissue Conditions; Salivary Gland Conditions; and Tongue Conditions.
Change From Baseline in Hemoglobin at Month 6/ETMonth 6/ET
Change From Baseline in Ferretin to Month 6/ETMonth 6/ET
Change From Baseline in C-Reactive Protein to Month 6/ETMonth 6/ET
Change From Baseline in Hematocrit at Month 6/ETMonth 6/ET
Number of Subjects With a Clinically Significant Decrease From Baseline in Hematocrit and/or Hemoglobin6 month treatment durationA clinically significant decrease from baseline was defined as a fall in hematocrit \> = 10 percentage points and/or hemoglobin \> = 2 g/dL.
Number of Subjects With Hepatic AEs in Gamma Glutamyl-Transferase (GGT), Aspartate Aminotransferase (AST) or Alanine Aminotransferase (ALT) of 3 Times the Upper Limit of Normal (ULN)6 month treatment durationGGT ULN was 49 international units (IU)/liter (L) for females and 61 IU/L for males, AST ULN was 37 IU/L for females and 39 IU/L for males, and ALT ULN was 43 IU/L for females and 45 IU/L for males.
Change From Baseline in Hepatic Measures of GGT, AST or ALT to Month 6/ETMonth 6/ET
Change From Baseline in Iron Binding Capacity to Month 6/ETMonth 6/ET

Other

MeasureTime frameDescription
Number of Subjects Alive at the Post Trial Interview6 months following last doseInterview occurred via telephone to obtain follow-up mortality and hospitalization information.
Number of Subjects Hospitalized in Last 6 Months at the Post Trial Interview6 months following last doseInterview occurred via telephone to obtain follow-up mortality and hospitalization information.

Countries

Belgium, Brazil, Canada, China, Colombia, Costa Rica, Croatia, Czechia, Ecuador, Estonia, France, Germany, Greece, Guatemala, Hong Kong, India, Latvia, Lithuania, Netherlands, Panama, Peru, Portugal, Russia, Serbia, Singapore, South Africa, South Korea, Spain, Sweden, Taiwan, Ukraine, United Kingdom

Participant flow

Participants by arm

ArmCount
Celecoxib
200 mg BID plus omeprazole placebo and diclofenac SR placebo
2,238
Oral Diclofenac Plus Omeprazole
Oral diclofenac SR (75 mg BID) plus omeprazole (20 mg QD) and celecoxib placebo.
2,246
Total4,484

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event233305
Overall StudyDeath22
Overall StudyLaboratory Abnormality933
Overall StudyLack of Efficacy2126
Overall StudyLost to Follow-up2932
Overall StudyOther8776
Overall StudyRandomized But Did Not Receive Treatment159
Overall StudyWithdrawal by Subject112142

Baseline characteristics

CharacteristicCelecoxibOral Diclofenac Plus OmeprazoleTotal
Age, Customized
55 to 59 years
122 participants113 participants235 participants
Age, Customized
< 55 years
176 participants164 participants340 participants
Age, Customized
60 to 64 years
721 participants742 participants1463 participants
Age, Customized
65 to 69 years
623 participants618 participants1241 participants
Age, Customized
70 to 74 years
361 participants390 participants751 participants
Age, Customized
> = 75 years
235 participants219 participants454 participants
Sex: Female, Male
Female
1848 Participants1822 Participants3670 Participants
Sex: Female, Male
Male
390 Participants424 Participants814 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
530 / 2,223669 / 2,237
serious
Total, serious adverse events
61 / 2,22361 / 2,237

Outcome results

Primary

Number of Subjects With Clinically Significant Upper and/or Lower Gastrointestinal Events (CSULGIEs)

CSULGIE=any of the following: gastroduodenal (GD) hemorrhage; gastric outlet obstruction; GD, small or large bowel perforation; small or large bowel hemorrhage; clinically significant anemia of defined GI origin; acute GI hemorrhage of unknown origin, including presumed small bowel hemorrhage; clinically significant anemia of presumed occult GI origin including possible small bowel blood loss. Subjects were assessed by an independent GI Events Adjudication Committee, who were blinded to study treatment assignments.

Time frame: 6 month treatment duration

Population: Intent-to-Treat (ITT) = included all randomized subjects. n = number of subjects with events confirmed by the committee.

ArmMeasureValue (NUMBER)
CelecoxibNumber of Subjects With Clinically Significant Upper and/or Lower Gastrointestinal Events (CSULGIEs)20 participants
Oral Diclofenac Plus OmeprazoleNumber of Subjects With Clinically Significant Upper and/or Lower Gastrointestinal Events (CSULGIEs)81 participants
p-value: <0.0001Life Table Extension
Secondary

Change From Baseline in C-Reactive Protein to Month 6/ET

Time frame: Month 6/ET

Population: Safety population. Number of participants analyzed = number of subjects with analyzable data.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
CelecoxibChange From Baseline in C-Reactive Protein to Month 6/ET0.058 mg/dLStandard Error 0.032
Oral Diclofenac Plus OmeprazoleChange From Baseline in C-Reactive Protein to Month 6/ET0.073 mg/dLStandard Error 0.032
p-value: 0.681995% CI: [-0.09, 0.06]ANCOVA
Secondary

Change From Baseline in Ferretin to Month 6/ET

Time frame: Month 6/ET

Population: Safety population. Number of participants analyzed = number of subjects with analyzable data.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
CelecoxibChange From Baseline in Ferretin to Month 6/ET-3.396 ug/dLStandard Error 2.224
Oral Diclofenac Plus OmeprazoleChange From Baseline in Ferretin to Month 6/ET-1.990 ug/dLStandard Error 2.228
p-value: 0.59295% CI: [-6.55, 3.74]ANCOVA
Secondary

Change From Baseline in Hematocrit at Month 6/ET

Time frame: Month 6/ET

Population: Safety population. Number of Participants Analyzed = number of subjects with analyzable data.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
CelecoxibChange From Baseline in Hematocrit at Month 6/ET-0.306 percentStandard Error 0.059
Oral Diclofenac Plus OmeprazoleChange From Baseline in Hematocrit at Month 6/ET-1.425 percentStandard Error 0.059
p-value: <0.000195% CI: [0.98, 1.25]ANCOVA
Secondary

Change From Baseline in Hemoglobin at Month 6/ET

Time frame: Month 6/ET

Population: Safety population = all randomized subjects who received at least 1 dose of study medication. Number of Participants Analyzed = number of subjects with analyzable data.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
CelecoxibChange From Baseline in Hemoglobin at Month 6/ET-0.017 grams (g)/deciliter (dL)Standard Error 0.019
Oral Diclofenac Plus OmeprazoleChange From Baseline in Hemoglobin at Month 6/ET-0.423 grams (g)/deciliter (dL)Standard Error 0.019
p-value: <0.000195% CI: [0.36, 0.45]ANCOVA
Secondary

Change From Baseline in Hepatic Measures of GGT, AST or ALT to Month 6/ET

Time frame: Month 6/ET

Population: Safety population. Number of participants analyzed = number of subjects with analyzable data.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
CelecoxibChange From Baseline in Hepatic Measures of GGT, AST or ALT to Month 6/ETGGT-2.689 IU/LStandard Error 0.591
CelecoxibChange From Baseline in Hepatic Measures of GGT, AST or ALT to Month 6/ETAST-0.901 IU/LStandard Error 0.239
CelecoxibChange From Baseline in Hepatic Measures of GGT, AST or ALT to Month 6/ETALT-1.151 IU/LStandard Error 0.364
Oral Diclofenac Plus OmeprazoleChange From Baseline in Hepatic Measures of GGT, AST or ALT to Month 6/ETGGT7.455 IU/LStandard Error 0.592
Oral Diclofenac Plus OmeprazoleChange From Baseline in Hepatic Measures of GGT, AST or ALT to Month 6/ETAST1.490 IU/LStandard Error 0.239
Oral Diclofenac Plus OmeprazoleChange From Baseline in Hepatic Measures of GGT, AST or ALT to Month 6/ETALT5.213 IU/LStandard Error 0.364
Comparison: GGTp-value: <0.000195% CI: [-11.51, -8.78]ANCOVA
Comparison: ASTp-value: <0.000195% CI: [-2.94, -1.84]ANCOVA
Comparison: ALTp-value: <0.000195% CI: [-7.2, -5.52]ANCOVA
Secondary

Change From Baseline in Iron Binding Capacity to Month 6/ET

Time frame: Month 6/ET

Population: Safety population. Number of participants analyzed = number of subjects with analyzable data.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
CelecoxibChange From Baseline in Iron Binding Capacity to Month 6/ET2.517 microgram (ug)/dLStandard Error 1.158
Oral Diclofenac Plus OmeprazoleChange From Baseline in Iron Binding Capacity to Month 6/ET1.952 microgram (ug)/dLStandard Error 1.161
p-value: 0.679595% CI: [-2.11, 3.24]ANCOVA
Secondary

Change From Baseline in Patient's Global Arthritis Assessment at Month 6/Early Termination (ET)

Subjects rated response to question: Considering all the ways the osteoarthritis or rheumatoid arthritis affects you, how are you doing today? using a 1 to 5 grading scale where 1=very good and 5=very poor.

Time frame: Month 6/Early Termination (ET)

Population: ITT. Number of Participants Analyzed = number of subjects with data available for the analysis. Last Observation Carried Forward (LOCF) method was used.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
CelecoxibChange From Baseline in Patient's Global Arthritis Assessment at Month 6/Early Termination (ET)0.754 scores on a scaleStandard Error 0.02
Oral Diclofenac Plus OmeprazoleChange From Baseline in Patient's Global Arthritis Assessment at Month 6/Early Termination (ET)0.773 scores on a scaleStandard Error 0.019
p-value: 0.414695% CI: [-0.06, 0.03]ANCOVA
Secondary

Number of Subjects With a Clinically Significant Decrease From Baseline in Hematocrit and/or Hemoglobin

A clinically significant decrease from baseline was defined as a fall in hematocrit \> = 10 percentage points and/or hemoglobin \> = 2 g/dL.

Time frame: 6 month treatment duration

Population: Safety population. Number of Participants Analyzed = number of subjects with analyzable data.

ArmMeasureValue (NUMBER)
CelecoxibNumber of Subjects With a Clinically Significant Decrease From Baseline in Hematocrit and/or Hemoglobin45 participants
Oral Diclofenac Plus OmeprazoleNumber of Subjects With a Clinically Significant Decrease From Baseline in Hematocrit and/or Hemoglobin123 participants
p-value: <0.000195% CI: [1.96, 3.84]Cochran-Mantel-Haenszel
Secondary

Number of Subjects With CSULGIEs by History of GD Ulceration

CSULGIE=any of the following: gastroduodenal (GD) hemorrhage; gastric outlet obstruction; GD, small or large bowel perforation; small or large bowel hemorrhage; clinically significant anemia of defined GI origin; acute GI hemorrhage of unknown origin, including presumed small bowel hemorrhage; clinically significant anemia of presumed occult GI origin including possible small bowel blood loss. Subjects were assessed by an independent GI Events Adjudication Committee, who were blinded to study treatment assignments.

Time frame: 6 month treatment duration

Population: ITT. n = number of subjects who had history or no history of GD ulceration.

ArmMeasureGroupValue (NUMBER)
CelecoxibNumber of Subjects With CSULGIEs by History of GD UlcerationHistory of GD Ulceration (n=395, 400)7 participants
CelecoxibNumber of Subjects With CSULGIEs by History of GD UlcerationNo History of GD Ulceration (n=1843, 1846)13 participants
Oral Diclofenac Plus OmeprazoleNumber of Subjects With CSULGIEs by History of GD UlcerationHistory of GD Ulceration (n=395, 400)13 participants
Oral Diclofenac Plus OmeprazoleNumber of Subjects With CSULGIEs by History of GD UlcerationNo History of GD Ulceration (n=1843, 1846)68 participants
Secondary

Number of Subjects With CSULGIES or Symptomatic Ulcers (SUs)

CSULGIE=any of the following: GD hemorrhage; gastric outlet obstruction; GD, small or large bowel perforation; small or large bowel hemorrhage; clinically significant anemia of defined GI origin; acute GI hemorrhage of unknown origin, including presumed small bowel hemorrhage; clinically significant anemia of presumed occult GI origin including possible small bowel blood loss. Subjects with evaluation at an event visit and found to have an ulcer on endoscopy, but did not meet any criteria considered for the primary endpoint by the GI committee were designated as having an SU.

Time frame: 6 month treatment duration

Population: ITT. n = number of subjects with CSULGIEs or SUs as confirmed by the committee.

ArmMeasureValue (NUMBER)
CelecoxibNumber of Subjects With CSULGIES or Symptomatic Ulcers (SUs)25 participants
Oral Diclofenac Plus OmeprazoleNumber of Subjects With CSULGIES or Symptomatic Ulcers (SUs)92 participants
p-value: <0.0001Life Table Extension
Secondary

Number of Subjects Withdrawn Due to GI Adverse Events (AEs)

GI AEs were defined using MedDRA SOC Gastrointestinal Disorders but excluding the following HLGTs: Benign Neoplasms Gastrointestinal; Dental and Gingival Conditions; Oral Soft Tissue Conditions; Salivary Gland Conditions; and Tongue Conditions.

Time frame: 6 month treatment duration

Population: ITT

ArmMeasureValue (NUMBER)
CelecoxibNumber of Subjects Withdrawn Due to GI Adverse Events (AEs)114 participants
Oral Diclofenac Plus OmeprazoleNumber of Subjects Withdrawn Due to GI Adverse Events (AEs)167 participants
p-value: 0.0006Life Table Extension
Secondary

Number of Subjects With Hepatic AEs in Gamma Glutamyl-Transferase (GGT), Aspartate Aminotransferase (AST) or Alanine Aminotransferase (ALT) of 3 Times the Upper Limit of Normal (ULN)

GGT ULN was 49 international units (IU)/liter (L) for females and 61 IU/L for males, AST ULN was 37 IU/L for females and 39 IU/L for males, and ALT ULN was 43 IU/L for females and 45 IU/L for males.

Time frame: 6 month treatment duration

Population: Safety population. Number of participants analyzed = number of subjects with analyzable data.

ArmMeasureGroupValue (NUMBER)
CelecoxibNumber of Subjects With Hepatic AEs in Gamma Glutamyl-Transferase (GGT), Aspartate Aminotransferase (AST) or Alanine Aminotransferase (ALT) of 3 Times the Upper Limit of Normal (ULN)GGT26 participants
CelecoxibNumber of Subjects With Hepatic AEs in Gamma Glutamyl-Transferase (GGT), Aspartate Aminotransferase (AST) or Alanine Aminotransferase (ALT) of 3 Times the Upper Limit of Normal (ULN)AST8 participants
CelecoxibNumber of Subjects With Hepatic AEs in Gamma Glutamyl-Transferase (GGT), Aspartate Aminotransferase (AST) or Alanine Aminotransferase (ALT) of 3 Times the Upper Limit of Normal (ULN)ALT13 participants
Oral Diclofenac Plus OmeprazoleNumber of Subjects With Hepatic AEs in Gamma Glutamyl-Transferase (GGT), Aspartate Aminotransferase (AST) or Alanine Aminotransferase (ALT) of 3 Times the Upper Limit of Normal (ULN)GGT86 participants
Oral Diclofenac Plus OmeprazoleNumber of Subjects With Hepatic AEs in Gamma Glutamyl-Transferase (GGT), Aspartate Aminotransferase (AST) or Alanine Aminotransferase (ALT) of 3 Times the Upper Limit of Normal (ULN)AST12 participants
Oral Diclofenac Plus OmeprazoleNumber of Subjects With Hepatic AEs in Gamma Glutamyl-Transferase (GGT), Aspartate Aminotransferase (AST) or Alanine Aminotransferase (ALT) of 3 Times the Upper Limit of Normal (ULN)ALT27 participants
Comparison: GGTp-value: <0.000195% CI: [2.156, 5.141]Fisher Exact
Comparison: ASTp-value: 0.380995% CI: [0.618, 3.684]Fisher Exact
Comparison: ALTp-value: 0.026495% CI: [1.081, 4.038]Fisher Exact
Secondary

Number of Subjects With Moderate to Severe Abdominal Symptoms

Abdominal symptoms were defined by the Medical Dictionary for Regulatory Activities MedDRA System Organ Class (SOC) 'Gastrointestinal Disorders' and keeping high level group term (HLGT) equal to Gastrointestinal Signs and Symptoms.

Time frame: 6 month treatment duration

Population: ITT

ArmMeasureValue (NUMBER)
CelecoxibNumber of Subjects With Moderate to Severe Abdominal Symptoms132 participants
Oral Diclofenac Plus OmeprazoleNumber of Subjects With Moderate to Severe Abdominal Symptoms162 participants
p-value: 0.0495Life Table Extension
Secondary

Number of Subjects With SUs

Subjects with evaluation at an event visit and found to have an ulcer on endoscopy, but did not meet any criteria considered for the primary endpoint by the GI committee were designated as having an SU.

Time frame: 6 month treatment duration

Population: ITT.

ArmMeasureValue (NUMBER)
CelecoxibNumber of Subjects With SUs5 participants
Oral Diclofenac Plus OmeprazoleNumber of Subjects With SUs11 participants
p-value: 0.1132Life Table Extension
Other Pre-specified

Number of Subjects Alive at the Post Trial Interview

Interview occurred via telephone to obtain follow-up mortality and hospitalization information.

Time frame: 6 months following last dose

Population: Safety population. Number of participants analyzed = number of subjects with follow-up information available.

ArmMeasureValue (NUMBER)
CelecoxibNumber of Subjects Alive at the Post Trial Interview2018 participants
Oral Diclofenac Plus OmeprazoleNumber of Subjects Alive at the Post Trial Interview2023 participants
Other Pre-specified

Number of Subjects Hospitalized in Last 6 Months at the Post Trial Interview

Interview occurred via telephone to obtain follow-up mortality and hospitalization information.

Time frame: 6 months following last dose

Population: Safety population. Number of participants analyzed = number of subjects with follow-up information available.

ArmMeasureValue (NUMBER)
CelecoxibNumber of Subjects Hospitalized in Last 6 Months at the Post Trial Interview82 participants
Oral Diclofenac Plus OmeprazoleNumber of Subjects Hospitalized in Last 6 Months at the Post Trial Interview79 participants

Source: ClinicalTrials.gov · Data processed: Mar 31, 2026