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Study to Evaluate Safety and Efficacy of CCX 354-C in Subjects With Rheumatoid Arthritis (CARAT-1)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT01027728
Recruitment Status : Completed
First Posted : December 9, 2009
Last Update Posted : February 9, 2012
Information provided by (Responsible Party):

Study Description
Brief Summary:
The purpose of this study is to evaluate the safety and tolerability of multiple oral doses of CCX354-C at a number of dose levels in subjects with stable rheumatoid arthritis (RA).

Condition or disease Intervention/treatment Phase
Rheumatoid Arthritis Drug: CCX 354-C Phase 1 Phase 2

Detailed Description:

This randomized, double-blind, placebo-controlled Phase I/II study will consist of two sequential stages, Stage A and B. This protocol describes the objectives, design, and procedures for Stage A of the study. The protocol will be amended in future when sufficient data from Stage A have been collected to initiate Stage B. The protocol amendment will describe the objectives, design, and procedures for Stage B of the study.

Stage A will be a randomized, double-blind, placebo-controlled, multi-dose, sequential dose escalation sub-study in 24 subjects with stable RA. Three sequential dose cohorts of 8 subjects will be included in this stage:

  • Cohort 1: 100 mg CCX354-C or placebo
  • Cohort 2: 100 mg CCX354-C or placebo
  • Cohort 3: 200 mg CCX354-C or placebo

Safety and PK data from each cohort will be reviewed by a data monitoring committee (DMC)before dose escalation to the next dose level. The study will proceed to Stage B only if the safety and tolerability profile of Stage A is deemed acceptable by the DMC.

Study Design

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 24 participants
Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Triple (Participant, Care Provider, Investigator)
Primary Purpose: Treatment
Official Title: A Randomized, Double-Blind, Placebo-Controlled, Phase I/II Study to Evaluate the Safety and Efficacy of CCX354-C in Subjects With Rheumatoid Arthritis
Study Start Date : December 2009
Primary Completion Date : July 2010
Study Completion Date : July 2010

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Arms and Interventions

Arm Intervention/treatment
Experimental: CCX354-C Drug: CCX 354-C
  • Cohort 1: Eight subjects will be randomized to receive 100 mg CCX354-C or placebo in a ratio of 3:1 (CCX354-C:placebo) once daily for 14 days;
  • Cohort 2: Eight subjects will be randomized to receive 100 mg CCX354-C or placebo in a ratio of 3:1 (CCX354-C:placebo) twice daily for 14 days; and
  • Cohort 3: Eight subjects will be randomized to receive 200 mg CCX354-C or placebo in a ratio of 3:1 (CCX354-C:placebo) once daily for 14 days.

Outcome Measures

Primary Outcome Measures :
  1. Subject Incidence of Adverse Events [ Time Frame: 14 Days ]

Secondary Outcome Measures :
  1. Evaluate possible interaction with methotrexate at a number of dose levels in subjects with stable RA [ Time Frame: 14 Days ]

Eligibility Criteria

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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Male or female subjects, aged 18-75 years inclusive, with stable RA based on American College of Rheumatology (ACR) criteria (see section 11.3) for at least 3 months (subjects do not need to have active RA for Stage A of the study);
  2. Subjects must have been on a stable dose of methotrexate (7.5 to 25 mg/week) taken orally, subcutaneously, or intramuscularly, but not intravenously, for ≥ 8 weeks prior to randomization;
  3. If a subject is also taking sulfasalazine or hydroxychloroquine, the subject must have been on a stable dose of these medications for at least 8 weeks prior to randomization;
  4. If a subject is on corticosteroid therapy, the dose must not exceed 10 mg prednisone or equivalent and the subject must have been on a stable dose for at least 4 weeks prior to randomization;
  5. Willing and able to give written Informed Consent and to comply with the requirements of the study protocol;
  6. Negative result of the human immunodeficiency virus (HIV) screen, the hepatitis B screen, and the hepatitis C screen;
  7. Judged to be otherwise healthy by the Investigator, based on medical history, physical examination (including electrocardiogram [ECG]), and clinical laboratory assessments;
  8. Female subjects of childbearing potential, and male subjects with partners of childbearing potential, may participate if adequate contraception is used during, and for at least the four weeks after, any administration of study medication. Adequate contraception is defined as usage by at least one of the partners of a barrier method of contraception, together with usage by the female partner, commencing at least three months prior to Screening, of a stable regimen of any form of hormonal contraception or an intra-uterine device. Use of abstinence alone is not considered adequate. Use of a barrier method alone is considered adequate only if the male partner was vasectomized at least six months prior to Screening. Use of a double-barrier method of contraception is acceptable.

Exclusion Criteria:

  1. Diagnosed with RA prior to 16 years of age;
  2. Women who are pregnant, breastfeeding, or have a positive serum pregnancy test at Screening;
  3. History within one year prior to randomization of illicit drug use;
  4. History of alcohol abuse at any time in the past;
  5. Use of infliximab, adalimumab, abatacept, certolizumab, golimumab, or tocilizumab within 8 weeks of randomization;
  6. Use of leflunomide within 6 months of randomization;
  7. Use of etanercept or anakinra within 4 weeks of randomization;
  8. Use of rituximab or ocrelizumab, or cytotoxic agents, such as cyclophosphamide or chlorambucil, within one year of randomization;
  9. Currently taking cytochrome P450 inhibitors including protease inhibitors such as ritonavir,indinavir, nelfinavir, or macrolide antibiotics such as erythromycin, telithromycin,clarithromycin, or azole antifungals such as fluconazole, ketoconazole, itraconazole, or cimetidine, nefazodone, bergamottin (constituent of grapefruit juice), quercetin, aprepitant,or verapamil;
  10. History or presence of any form of cancer within the 10 years prior to randomization, with the exception of excised basal cell or squamous cell carcinoma of the skin, or cervical carcinoma in situ or breast carcinoma in situ that has been excised or resected completely and is without evidence of local recurrence or metastasis;
  11. Evidence of tuberculosis based on chest X rays, tuberculin skin test, QuantiFERON®-TB Gold test, or T-SPOT®.TB test performed during screening;
  12. Presence of Felty's syndrome, psoriatic arthritis, or other auto-immune diseases;
  13. Major surgery (including joint surgery) within 12 weeks prior to randomization;
  14. Subject's hemoglobin is less than 11 g/dL (6.83 mmol/L) at Screening;
  15. Subject has any evidence of hepatic disease; AST, ALT, alkaline phosphatase, or bilirubin > 1.5 x the upper limit of normal;
  16. Subject has any evidence of renal impairment; serum creatinine > 1.5 x upper limit of normal;
  17. The subject had an infection requiring antibiotic treatment within 4 weeks of randomization;
  18. History or presence of any medical or psychiatric condition or disease, or laboratory abnormality that, in the opinion of the Investigator, may place the subject at unacceptable risk for study participation and may prevent the subject from completing the study; and
  19. Participated in any clinical study of an investigational product within 30 days prior to randomization.
Contacts and Locations

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01027728

Brussels, Belgium
Liege, Belgium
Bacau, Romania
Bucharest, Romania
Galati, Romania
Sponsors and Collaborators
Study Director: Pirow Bekker, MD, PhD ChemoCentryx, Inc.
More Information

Responsible Party: ChemoCentryx
ClinicalTrials.gov Identifier: NCT01027728     History of Changes
Other Study ID Numbers: CL003_354
First Posted: December 9, 2009    Key Record Dates
Last Update Posted: February 9, 2012
Last Verified: February 2012

Additional relevant MeSH terms:
Arthritis, Rheumatoid
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases
Connective Tissue Diseases
Autoimmune Diseases
Immune System Diseases