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Clinical Efficacy and Safety of Leflunomide in Egyptian Patients With Active Rheumatoid Arthritis

A Phase IV, Multi-Centric, Prospective, Observational Study to Assess the Clinical Efficacy and Safety of Leflunomide in Egyptian Patients With Active Rheumatoid Arthritis

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03599986
Acronym
CLEAR
Enrollment
398
Registered
2018-07-26
Start date
2017-06-16
Completion date
2018-10-13
Last updated
2020-06-30

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

Conditions

Active Rheumatoid Arthritis

Keywords

RA

Brief summary

A Phase IV, Multi-Centric, Prospective, Observational Study to Assess the Clinical Efficacy and Safety of Leflunomide in Egyptian Patients with Active Rheumatoid Arthritis. (CLEAR)

Detailed description

CLEAR is a phase IV, multi-centric, prospective, observational study to assess the clinical efficacy and safety of Leflunomide as first-line therapy and as add-on therapy to other DMARDs (such as Methotrexate, Hydroxychloroquine, Sulfasalazine) with or without Steroids use in Egyptian patients with Active Rheumatoid Arthritis.

Interventions

None listed

Sponsors

DataClin
CollaboratorINDUSTRY
Eva Pharma
Lead SponsorINDUSTRY

Study design

Observational model
OTHER
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

1. Active Rheumatoid Arthritis patients selected according to the ACR/EULAR classification 2010 criteria with score ≥ 6 points. 2. Male or female patients aged 18-60 years old. 3. Leflunomide naïve patients or patients with previous Leflunomide administration (after at least 6 month wash out period from date of baseline visit) who will be prescribed Leflunomide at the sole decision of the treating physician. 4. Patients with or without another DMARDs including Methotrexate, Sulfasalazine and/or Hydroxychloroquine with or without steroids use who experienced therapy resistance, inadequate response or intolerance. 5. Patients read, understand and signed informed consent prior to inclusion. 6. Patients willing to complete and literate in the language of the available Health Assessment Questionnaire (HAQ Disability Index) either alone or with minimal assistance from caregivers and/or trained site personnel.

Exclusion criteria

1. Female patients who are pregnant or lactating at the time of inclusion or those who are planning for pregnancy within the coming year from the time of inclusion to the study. 2. Patients with contraindications to active constituent of Leflunomide. 3. Patients with severe concurrent infection (necessitating IV antibiotics or hospitalization). 4. Patients with history of non-treated hepatitis B &/or C infection. 5. Patients with history of severe liver disease (child C class). 6. Patients with history of severe renal insufficiency (creatinine clearance ≤30 ml/min.).

Design outcomes

Primary

MeasureTime frameDescription
Number of Patients With Remission, Low, Moderate or High Disease Activity (in Terms of CDAI Scores) in Visits 1 and 6.9 monthsAssessing the clinical efficacy of leflunomide as first-line therapy and as add-on therapy to other DMARDs, with or without steroids in Egyptian patients with active rheumatoid arthritis \[in terms of the number of patients in remission (i.e. CDAI score 0.0 - 2.8), of low disease activity (i.e. CDAI score 2.9 - 10.0), of moderate disease activity (i.e. CDAI score 10.1 - 22.0) and of high disease activity (i.e. CDAI score 22.1 - 76.0) in visits 1 (at baseline) and 6 (at week 36)\]. CDAI score: The sum of Tender joint score, Swollen joint score, Patient global score, and Patient global score. CDAI score interpretation: 0.0 - 2.8: Remission 2.9 - 10.0: Low Activity 10.1 - 22.0: Moderate Activity 22.1 - 76.0: High Activity
Number of Patients With Different Disability Scores in Terms of the Mean Relative Change in Health Assessment Questionnaire - Disability Index Score on Visits 1 and 6.9 monthsAssessing the clinical efficacy of leflunomide as first-line therapy and as add-on therapy to other DMARDs, with or without steroids in Egyptian patients with active rheumatoid arthritis \[in terms of the number of patients with mild difficulties to moderate disability, moderate to severe disability and severe to very severe disability; according to the mean relative change in health assessment questionnaire - disability index score (HAQ-DI) at visits 1 (at baseline) and 6 (at week 36)\]. A HAQ-DI score of 0.0 - 1 indicates mild difficulties to moderate disability, a HAQ-DI score of 1.1 - 2 indicates moderate to severe disability and a HAQ-DI score of 2.1 - 3 indicates severe to very severe disability. There are eight categories; first score within each category: Dressing and Grooming, Arising, Eating, Walking, Hygiene, Reach, Grip, and Activities. Total score is the mean of the eight category scores. Higher scores indicate greater disability.

Secondary

MeasureTime frameDescription
Number of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.9 monthsIdentifying the safety profile of leflunomide whether used as first-line therapy and/or as add-on therapy to other DMARDs with or without steroids in Egyptian patients with active rheumatoid arthritis.

Countries

Egypt

Participant flow

Participants by arm

ArmCount
Single Arm
Adult Egyptian patients with active rheumatoid arthritis, fulfilling the ACR/EULAR 2010 classification criteria, for whom leflunomide was prescribed, were included and followed up for 9 months.
366
Total366

Baseline characteristics

CharacteristicSingle Arm
AEs/SAEs during previous treatment of RA
Missing
20 Participants
AEs/SAEs during previous treatment of RA
No
252 Participants
AEs/SAEs during previous treatment of RA
Yes
94 Participants
Age at first menstrual period13 years
Age, Continuous44.1 years
Birth Control
Missing
80 Participants
Birth Control
No
151 Participants
Birth Control
Yes
135 Participants
Comorbidities
Atherosclerosis
1 Participants
Comorbidities
Autoimmune disease
10 Participants
Comorbidities
Coronary artery disease
3 Participants
Comorbidities
Diabetes Mellitus II
21 Participants
Comorbidities
Dyslipidemia
10 Participants
Comorbidities
GIT disorders
10 Participants
Comorbidities
Hepatobiliary disorders
1 Participants
Comorbidities
Hypertension
60 Participants
Comorbidities
Musculoskeletal disoders
28 Participants
Comorbidities
Myocardial infarction
1 Participants
Comorbidities
Nervous system disorders
5 Participants
Comorbidities
Obesity
32 Participants
Comorbidities
Other
15 Participants
Comorbidities
Peripheral Vascular Disease
1 Participants
Comorbidities
Psychiatric disorders
1 Participants
Comorbidities
Reproductive system disorders
2 Participants
Comorbidities
Respiratory and thoracic disorders
6 Participants
Comorbidities
Stroke
1 Participants
Diastolic blood pressure78.36 mmHg
STANDARD_DEVIATION 7.89
Did the patient receive leflunomide before?
No
315 Participants
Did the patient receive leflunomide before?
Yes
51 Participants
Did the patient take a loading dose of leflunomide before?
No
20 Participants
Did the patient take a loading dose of leflunomide before?
Yes
31 Participants
Duration of RA treatment with medications other than leflunomide27.7 months
Duration of Rheumatoid Arthritis2.03 years
Education
Basic/primary
80 Participants
Education
Illiterate
31 Participants
Education
Secondary
120 Participants
Education
University/Higher
135 Participants
Heart rate81.7 beats/minute
STANDARD_DEVIATION 8.3
Height164 Centimeter (cm)
STANDARD_DEVIATION 12.19
Marital status
Divorced
3 Participants
Marital status
Married
312 Participants
Marital status
Single
31 Participants
Marital status
Widow/widower
20 Participants
Medications for reasons other than Rheumatoid Arthritis
Atorvastatin
4 Participants
Medications for reasons other than Rheumatoid Arthritis
Bisporolol
27 Participants
Medications for reasons other than Rheumatoid Arthritis
Calcium
8 Participants
Medications for reasons other than Rheumatoid Arthritis
Calcium carbonate
5 Participants
Medications for reasons other than Rheumatoid Arthritis
Captopril
5 Participants
Medications for reasons other than Rheumatoid Arthritis
Chondroitin sulphate
4 Participants
Medications for reasons other than Rheumatoid Arthritis
Chymotrypsin
7 Participants
Medications for reasons other than Rheumatoid Arthritis
Diclofenac
14 Participants
Medications for reasons other than Rheumatoid Arthritis
Diclofenac sodium
5 Participants
Medications for reasons other than Rheumatoid Arthritis
Enalapril maleate
8 Participants
Medications for reasons other than Rheumatoid Arthritis
Ergocalciferol
8 Participants
Medications for reasons other than Rheumatoid Arthritis
Folic acid
12 Participants
Medications for reasons other than Rheumatoid Arthritis
Glimepiride
6 Participants
Medications for reasons other than Rheumatoid Arthritis
Glucosamine
9 Participants
Medications for reasons other than Rheumatoid Arthritis
Hydrochlorothiazide
16 Participants
Medications for reasons other than Rheumatoid Arthritis
Hydroxychloroquine sulphate
4 Participants
Medications for reasons other than Rheumatoid Arthritis
Ibuprofen
4 Participants
Medications for reasons other than Rheumatoid Arthritis
Levothyroxine
4 Participants
Medications for reasons other than Rheumatoid Arthritis
Magnesium
6 Participants
Medications for reasons other than Rheumatoid Arthritis
Meloxicam
4 Participants
Medications for reasons other than Rheumatoid Arthritis
Metformin
10 Participants
Medications for reasons other than Rheumatoid Arthritis
Methotrexate
19 Participants
Medications for reasons other than Rheumatoid Arthritis
Omeprazole
17 Participants
Medications for reasons other than Rheumatoid Arthritis
Pantoprazole
9 Participants
Medications for reasons other than Rheumatoid Arthritis
Piroxicam
9 Participants
Medications for reasons other than Rheumatoid Arthritis
Prednisolone
11 Participants
Medications for reasons other than Rheumatoid Arthritis
Pregabalin
5 Participants
Medications for reasons other than Rheumatoid Arthritis
Ranitidine
4 Participants
Medications for reasons other than Rheumatoid Arthritis
Silymarin
4 Participants
Medications for reasons other than Rheumatoid Arthritis
Trypsin
7 Participants
Medications for reasons other than Rheumatoid Arthritis
Vitamin B12
4 Participants
Medications for reasons other than Rheumatoid Arthritis
Vitamin D
5 Participants
Menstruation status
Menopausal
38 Participants
Menstruation status
Menstruating
192 Participants
Menstruation status
Missing
1 Participants
Menstruation status
Post-menopausal
70 Participants
Menstruation status
Premenopausal
8 Participants
Patients currently taking medications for comorbidities
No
265 Participants
Patients currently taking medications for comorbidities
Yes
101 Participants
Patient's distribution per governorates
Alexandria
108 Participants
Patient's distribution per governorates
Assuit
3 Participants
Patient's distribution per governorates
Banha
18 Participants
Patient's distribution per governorates
Cairo
98 Participants
Patient's distribution per governorates
Ismailia
32 Participants
Patient's distribution per governorates
Mansoura
15 Participants
Patient's distribution per governorates
Menoufia
27 Participants
Patient's distribution per governorates
Minya
17 Participants
Patient's distribution per governorates
Zagazig
48 Participants
Patients with comorbidities
No
251 Participants
Patients with comorbidities
Yes
115 Participants
Physical Examination outcome
Abnormal
47 Participants
Physical Examination outcome
Normal
312 Participants
Poor prognostic factors
Bony erosions by radiograph
90 Participants
Poor prognostic factors
Extra-articular disease
19 Participants
Poor prognostic factors
Functional limitation (HAQ)
240 Participants
Poor prognostic factors
High CRP and ESR or high RF and/or anti-CCP
237 Participants
Poor prognostic factors
High disease activity
295 Participants
Poor prognostic factors
High swollen joint count
136 Participants
Race and Ethnicity Not Collected— Participants
Regularity of menstrual periods if menstruating or premenopausal
Irregular
161 Participants
Regularity of menstrual periods if menstruating or premenopausal
Missing
16 Participants
Regularity of menstrual periods if menstruating or premenopausal
Regular
23 Participants
Residence
Rural
138 Participants
Residence
Urban
228 Participants
Sex: Female, Male
Female
309 Participants
Sex: Female, Male
Male
57 Participants
Smoking status
Current
22 Participants
Smoking status
Former
9 Participants
Smoking status
Never
333 Participants
Specification of birth control method used
Barrier methods
3 Participants
Specification of birth control method used
Hormonal
43 Participants
Specification of birth control method used
Intrauterine Device (IUD)
85 Participants
Specification of birth control method used
Natural methods
3 Participants
Specification of birth control method used
Unspecified
1 Participants
Status of alcohol consumption
Missing
3 Participants
Status of alcohol consumption
Never
363 Participants
Status of alcohol consumption
Yes
0 Participants
Systolic blood pressure121.9 mmHg
STANDARD_DEVIATION 13.66
Temperature37.2 Degrees Celsius
STANDARD_DEVIATION 2.7
Weight81.3 Kilogram (Kg)
STANDARD_DEVIATION 15.25
X-ray performed for both hands?
Missing
24 Participants
X-ray performed for both hands?
No
198 Participants
X-ray performed for both hands?
Yes
144 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 398
other
Total, other adverse events
20 / 398
serious
Total, serious adverse events
0 / 398

Outcome results

Primary

Number of Patients With Different Disability Scores in Terms of the Mean Relative Change in Health Assessment Questionnaire - Disability Index Score on Visits 1 and 6.

Assessing the clinical efficacy of leflunomide as first-line therapy and as add-on therapy to other DMARDs, with or without steroids in Egyptian patients with active rheumatoid arthritis \[in terms of the number of patients with mild difficulties to moderate disability, moderate to severe disability and severe to very severe disability; according to the mean relative change in health assessment questionnaire - disability index score (HAQ-DI) at visits 1 (at baseline) and 6 (at week 36)\]. A HAQ-DI score of 0.0 - 1 indicates mild difficulties to moderate disability, a HAQ-DI score of 1.1 - 2 indicates moderate to severe disability and a HAQ-DI score of 2.1 - 3 indicates severe to very severe disability. There are eight categories; first score within each category: Dressing and Grooming, Arising, Eating, Walking, Hygiene, Reach, Grip, and Activities. Total score is the mean of the eight category scores. Higher scores indicate greater disability.

Time frame: 9 months

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Single ArmNumber of Patients With Different Disability Scores in Terms of the Mean Relative Change in Health Assessment Questionnaire - Disability Index Score on Visits 1 and 6.HAQ score 0.0 - 1 : Visit 1112 Participants
Single ArmNumber of Patients With Different Disability Scores in Terms of the Mean Relative Change in Health Assessment Questionnaire - Disability Index Score on Visits 1 and 6.HAQ score 0.0 - 1 : Visit 6318 Participants
Single ArmNumber of Patients With Different Disability Scores in Terms of the Mean Relative Change in Health Assessment Questionnaire - Disability Index Score on Visits 1 and 6.HAQ score 1.1 - 2 : Visit 1200 Participants
Single ArmNumber of Patients With Different Disability Scores in Terms of the Mean Relative Change in Health Assessment Questionnaire - Disability Index Score on Visits 1 and 6.HAQ score 1.1 - 2 : Visit 643 Participants
Single ArmNumber of Patients With Different Disability Scores in Terms of the Mean Relative Change in Health Assessment Questionnaire - Disability Index Score on Visits 1 and 6.HAQ score 2.1 - 3 : Visit 154 Participants
Single ArmNumber of Patients With Different Disability Scores in Terms of the Mean Relative Change in Health Assessment Questionnaire - Disability Index Score on Visits 1 and 6.HAQ score 2.1 - 3 : Visit 65 Participants
Primary

Number of Patients With Remission, Low, Moderate or High Disease Activity (in Terms of CDAI Scores) in Visits 1 and 6.

Assessing the clinical efficacy of leflunomide as first-line therapy and as add-on therapy to other DMARDs, with or without steroids in Egyptian patients with active rheumatoid arthritis \[in terms of the number of patients in remission (i.e. CDAI score 0.0 - 2.8), of low disease activity (i.e. CDAI score 2.9 - 10.0), of moderate disease activity (i.e. CDAI score 10.1 - 22.0) and of high disease activity (i.e. CDAI score 22.1 - 76.0) in visits 1 (at baseline) and 6 (at week 36)\]. CDAI score: The sum of Tender joint score, Swollen joint score, Patient global score, and Patient global score. CDAI score interpretation: 0.0 - 2.8: Remission 2.9 - 10.0: Low Activity 10.1 - 22.0: Moderate Activity 22.1 - 76.0: High Activity

Time frame: 9 months

Population: Only patients with at least one treatment dose and post-assessment score of last observation carried forward (LOCF) convention were analyzed in terms of efficacy endpoints.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Single ArmNumber of Patients With Remission, Low, Moderate or High Disease Activity (in Terms of CDAI Scores) in Visits 1 and 6.Disease Severity: Remission : Visit 10 Participants
Single ArmNumber of Patients With Remission, Low, Moderate or High Disease Activity (in Terms of CDAI Scores) in Visits 1 and 6.Disease Severity: Remission : Visit 670 Participants
Single ArmNumber of Patients With Remission, Low, Moderate or High Disease Activity (in Terms of CDAI Scores) in Visits 1 and 6.Disease severity: Low activity : Visit 110 Participants
Single ArmNumber of Patients With Remission, Low, Moderate or High Disease Activity (in Terms of CDAI Scores) in Visits 1 and 6.Disease severity: Low activity : Visit 6116 Participants
Single ArmNumber of Patients With Remission, Low, Moderate or High Disease Activity (in Terms of CDAI Scores) in Visits 1 and 6.Disease severity: Moderate activity : Visit 153 Participants
Single ArmNumber of Patients With Remission, Low, Moderate or High Disease Activity (in Terms of CDAI Scores) in Visits 1 and 6.Disease severity: Moderate activity : Visit 6113 Participants
Single ArmNumber of Patients With Remission, Low, Moderate or High Disease Activity (in Terms of CDAI Scores) in Visits 1 and 6.Disease severity: High activity : Visit 1303 Participants
Single ArmNumber of Patients With Remission, Low, Moderate or High Disease Activity (in Terms of CDAI Scores) in Visits 1 and 6.Disease severity: High activity : Visit 667 Participants
Secondary

Number of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.

Identifying the safety profile of leflunomide whether used as first-line therapy and/or as add-on therapy to other DMARDs with or without steroids in Egyptian patients with active rheumatoid arthritis.

Time frame: 9 months

Population: In the safety population (n = 398), 23 adverse events were experienced. These are listed in the table.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Hepatic enzyme increased6 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Swollen/tender joint count increased2 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.White blood cell count decreased2 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Abdominal discomfort2 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Cardiac death1 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Anemia1 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Bicytopenia1 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Flushing/hyperhidrosis/dry mouth/lip disoloration1 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Hypertension1 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Oropharyngeal pain1 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Purpura1 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Rheumatoid arthritis1 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Scleritis1 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Supraventricular tachycardia1 Participants
Single ArmNumber of Adverse Events (AEs)/ Serious Adverse Events (SAEs) Experienced by Rheumatoid Arthritis Patients Receiving Leflunomide as First-line Therapy and as add-on Therapy to Other DMARD, With or Without Steroids and Their Relation to Study Medication.Diarrhea1 Participants

Source: ClinicalTrials.gov · Data processed: Feb 22, 2026