Evaluation of Tocilizumab as an add-on Therapy to Corticoids in Giant Cell Arteritis: Proof of Concept Study. (HORTOCI)
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ClinicalTrials.gov Identifier: NCT01910038 |
Recruitment Status :
Completed
First Posted : July 29, 2013
Last Update Posted : November 30, 2017
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Condition or disease | Intervention/treatment | Phase |
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Giant Cell Arteritis | Drug: corticoids+ tocilizumab 8mg/Kg/4 weeks | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 20 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Evaluation of Tocilizumab as an add-on Therapy to Corticoids in Giant Cell Arteritis: Proof of Concept Study. |
Actual Study Start Date : | November 8, 2013 |
Actual Primary Completion Date : | December 2015 |
Actual Study Completion Date : | June 13, 2016 |

Arm | Intervention/treatment |
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Experimental: Prednisone+Tocilizumab
Prednisone (0.7 mg/Kg/d and then progressively tapered to reach 0.1 mg/Kg/d at W24) + tocilizumab 8mg/Kg/4 weeks for a total of 4 infusions (S0, S4, S8, S12).
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Drug: corticoids+ tocilizumab 8mg/Kg/4 weeks |
- Percentage of patients in remission with a dose of prednisone ≤ 0.1 mg/kg/day [ Time Frame: Week 26 ]
Remission: absence of symptoms attributable to Giant Cell Arteritis and normalization of inflammatory markers (CRP<10 mg/L and ESR<30 mm/h).
Relapse: recurrence of symptoms attributable to active GCA and/or increased levels of inflammatory markers (CRP≥10 mg/L and/or ESR≥30 mm/h). Elevation of inflammatory markers in the absence of GCA symptoms was considered relapse if it persisted at two time points at 1 week apart without any other obvious etiology than GCA.
- Frequency and type of adverse effects encountered [ Time Frame: Until Week 52 ]
- Percentage of relapses [ Time Frame: Week 26 and Week 52 ]
- Time to the first relapse [ Time Frame: Until Week 52 ]
- Factors associated with the occurrence of relapse [ Time Frame: Until Week 52 ]
- The cumulative dose of prednisone. [ Time Frame: Weeks 26 and 52 ]

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Ages Eligible for Study: | 50 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Age > 50 years
- GCA fulfilling ≥3/5 ACR criteria
- Newly diagnosed GCA or relapsing GCA if treatments (Glucocorticoids±immunosuppressants) have been stopped for at least 6 months
- Glucocorticoids started for less than 21 days
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Proof of large vessel vasculitis:
- Positive temporal artery biopsy (TAB)
- Aortitis, as defined by regular circumferential wall thickening ≥3mm in the absence of calcification and/or significant atheroma on angio-CT images; or a homogeneous vascular signal more intense than the liver on 18FDG-PET images.
- For men and women of a child-bearing age, an effective method of contraception must be used by the patient or his or her partner throughout the treatment with tocilizumab (or placebo) and for 3 months after the end of the treatment. Breast-feeding is not authorised until 3 months after the end of treatment with tocilizumab. Women not considered at risk of pregnancy are those defined by menopause of at least one year or surgically steriles (ligature of the fallopian tubes, bilateral ovariectomy or hysterectomy)
- Persons who have provided written informed consent
- Persons covered by the National Health Insurance Agency
Exclusion Criteria:
- Pregnancy
- hospitalization in the previous year for drug or alcohol intoxication
- current treatment for another autoimmune or inflammatory disease
- known hypersensitivity to TCZ or one of its excipients or another human or murine monoclonal antibody
- treatment with anti-TNF-α, methotrexate, cyclophosphamide, dapsone, methylprednisolone pulses or any other immunosuppressive or immunomodulatory drug or biotherapy within 6 months before inclusion
- long-course systemic GC therapy
- prednisone therapy >1 mg/kg/day, whatever the duration
- serious or chronic proven infections requiring hospitalization or intravenous antibiotics within 30 days before inclusion
- other proven infections that required antibiotics within 14 days before inclusion
- opportunistic infections
- evidence of active tuberculosis or latent tuberculosis (as defined by a positive interferon gamma release assay)
- active chronic hepatitis B or C or HIV
- cancer or lymphoproliferative disorders within the 5 years before inclusion (with the exception of in situ cervical cancer and squamous or basal cell carcinoma with R0 resection)
- past history of sigmoid diverticulitis
- any active hepatic disease
- hepatic failure; thrombocytopenia <50 G/L
- neutropenia <0.5 G/L
- history of moderate to severe congestive heart failure or demyelinating disease
- recent stroke
- current signs or symptoms of severe, progressive, or uncontrolled disease, not due to GCA, which contraindicates TCZ
- severe and uncontrolled hypercholesterolemia
- high cardiovascular risk (former cerebral or coronary vascular event, or vascular risk >20% at 10 years according to the Framingham risk score [24]); dementia; non-compliant patients
- patients under ward of court, tutelage or legal guardianship.

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): NCT01910038
France | |
CHU de Caen - Hôpital Côte de Nacre | |
Caen, France, 14033 | |
CHU de Dijon | |
Dijon, France, 21079 | |
Chu Dupuytren | |
Limoges, France, 87042 | |
Hôpital Edouard HERRIOT | |
Lyon, France, 69437 | |
Hôpitaux privés de Metz - Site Sainte Blandine | |
Metz, France, 57045 | |
Institut Mutualiste Montsouris | |
Paris, France, 75014 | |
Hôpital La Pitié-Salpêtrière | |
Paris, France, 75651 | |
Hôpital COCHIN | |
Paris, France, 75679 |
Responsible Party: | Centre Hospitalier Universitaire Dijon |
ClinicalTrials.gov Identifier: | NCT01910038 |
Other Study ID Numbers: |
Bonnotte PHRC N 2012 |
First Posted: | July 29, 2013 Key Record Dates |
Last Update Posted: | November 30, 2017 |
Last Verified: | November 2017 |
Polymyalgia Rheumatica Giant Cell Arteritis Arteritis Vasculitis Vascular Diseases Cardiovascular Diseases Vasculitis, Central Nervous System Autoimmune Diseases of the Nervous System Nervous System Diseases Cerebrovascular Disorders |
Brain Diseases Central Nervous System Diseases Skin Diseases, Vascular Skin Diseases Autoimmune Diseases Immune System Diseases Muscular Diseases Musculoskeletal Diseases Rheumatic Diseases Connective Tissue Diseases |