Evaluation of the Efficacy and Safety of Sarilumab in Patients With Polymyalgia Rheumatica

Study duration per participant is approximative 62 weeks including up to a 4-week screening
period, 52-week treatment period and 6-week follow-up period.

Inclusion criteria :

- Diagnosis of polymyalgia rheumatica (PMR) according to European League Against
Rheumatism/American College of Rheumatology classification criteria.

- Patients must be on prednisone of at least 7.5 mg/day (or equivalent) and not
exceeding 20 mg/day at screening and during the screening period.

- Patient is willing and able to take prednisone of 15 mg/day at randomization.

- Patients must have a history of being treated for at least 8 weeks with prednisone
(≥10 mg/day or equivalent).

- Patient must have had at least one episode of unequivocal PMR flare while attempting
to taper prednisone at a dose that is ≥7.5 mg/day (or equivalent) within the past 12
Weeks prior to screening:

- Unequivocal symptoms of PMR flare include shoulder and/or hip girdle pain associated
with inflammatory stiffness.

- Patients must have erythrocyte sedimentation rate ≥30 mm/hr and/or C-reactive protein
≥10 mg/L associated with PMR disease activity within 12 weeks prior to screening.

Exclusion criteria:

- Diagnosis of giant cell arteritis (e.g., persistent or recurrent localized headache,
temporal artery or scalp tenderness, jaw claudication, extremity claudication, blurry
or loss of vision, symptoms of stroke).

- Diagnosis of active fibromyalgia.

- Concurrent rheumatoid arthritis or other inflammatory arthritis or other connective
tissue diseases, such as but not limited to systemic lupus erythematosus, systemic
sclerosis, vasculitis, myositis, mixed connective tissue disease, and ankylosing
spondylitis.

- Concurrent diagnosis of rhabdomyolysis or neuropathic muscular diseases.

- Inadequately treated hypothyroidism.

- Organ transplant recipient.

- Therapeutic failure including inadequate response or intolerance, or contraindication,
to biological IL-6 antagonist.

- Any prior (within the defined period below) or concurrent use of immunosuppressive
therapies but not limited to any of the following:

- Janus kinase inhibitor within 4 weeks of baseline.

- Alkylating agents including cyclophosphamide within 6 months of baseline.

- Cell-depletion agents (e.g., anti CD20) without evidence of recovery of B cells to
baseline level.

- Tumor necrosis factor inhibitors within 2-8 weeks (etanercept within 2 weeks,
infliximab, certolizumab, golimumab, or adalimumab within 8 weeks), or after at least
5 half-lives have elapsed, whichever is longer.

- Abatacept within 8 weeks of baseline.

- Anakinra within 1 week of baseline.

- Cyclosporine, azathioprine or mycophenolate mofetil or leflunomide within 4 weeks of
baseline.

- Unstable methotrexate (MTX) dose and/or MTX dose >15mg/week within 3 months of
baseline

- Concurrent use of systemic CS for conditions other than PMR.

- Pregnant or breastfeeding woman.

- Patients with active or untreated latent tuberculosis.

- Patients with history of invasive opportunistic infections.

- Patients with fever associated with infection or chronic, persistent or recurring
infections requiring active treatment.

- Patients with uncontrolled diabetes mellitus.

- Patients with non-healed or healing skin ulcers.

- Patients who received any live, attenuated vaccine within 3 months of baseline.

- Patients who are positive for hepatitis B, hepatitis C and/or HIV.

- Patients with a history of active or recurrent herpes zoster.

- Patients with a history of or prior articular or prosthetic joint infection.

- Prior or current history of malignancy.

- Patients who have had surgery within 4 weeks of screening or planned surgery during
study.

- Patients with a history of inflammatory bowel disease or severe diverticulitis or
previous gastrointestinal perforation.

The above information is not intended to contain all considerations relevant to a patient's
potential participation in a clinical trial.