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Use of subcutaneous tocilizumab to prepare intravenous solutions for COVID-19 emergency shortage: Comparative analytical study of physicochemical quality attributes.

ABSTRACT: COVID-19, a disease caused by the novel coronavirus SARS-CoV-2, has produced a serious emergency for global public health, placing enormous stress on national health systems in many countries. Several studies suggest that cytokine storms (interleukins) may play an important role in severe cases of COVID-19. Neutralizing key inflammatory factors in cytokine release syndrome (CRS) could therefore be of great value in reducing the mortality rate. Tocilizumab (TCZ) in its intravenous (IV) form of administration -RoActemra® 20 mg/mL (Roche)-is indicated for treatment of severe CRS patients. Preliminary investigations have concluded that inhibition of IL-6 with TCZ appears to be efficacious and safe, with several ongoing clinical trials. This has led to a huge increase in demand for IV TCZ for treating severe COVID-19 patients in hospitals, which has resulted in drug shortages. Here, we present a comparability study assessing the main critical physicochemical attributes of TCZ solutions used for infusion, at 6 mg/mL and 4 mg/mL, prepared from RoActemra® 20 mg/mL (IV form) and from RoActemra® 162 mg (0.9 mL solution pre-filled syringe, subcutaneous(SC) form), to evaluate the use of the latter for preparing clinical solutions required for IV administration, so that in a situation of shortage of the IV medicine, the SC form could be used to prepare the solutions for IV delivery of TCZ. It is important to remember that during the current pandemic all the medicines are used off-label, since none of them has yet been approved for the treatment of COVID-19.

SUBMITTER: Navas N

PROVIDER: S-EPMC7319620 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:Rheumatoid arthritis (RA) is a chronic systemic autoimmune condition which affects approximately 1% of the adult population worldwide and is characterized by joint inflammation, with extra-articular features being common. Interleukin 6 (IL-6) is one of the chief pro-inflammatory cytokines found in the joints and sera of patients with RA. Increased levels of IL-6 correlate with inflammation, disease activity, and radiological damage. RA treatment should focus on minimizing the signs and symptoms of disease (pain, stiffness, and swelling of the joints) and on preventing or minimizing joint damage to preserve functionality and quality of life. The benefits of early, intensive intervention are now acknowledged, with all patients with newly diagnosed, active RA being started on methotrexate (MTX) monotherapy or combination therapy. Lack of efficacy, intolerance, and/or toxicity can lead to discontinuation of this drug, and there is a need for exploring further treatment options. In the UK, patients with persistently high disease activity who have failed at least two conventional disease-modifying agents (DMARDs) including MTX may qualify for biologic therapy. Numerous trials have shown intravenous (IV) tocilizumab (TCZ), a biologic drug targeting and inhibiting IL-6, to be effective for controlling inflammation in RA, with an acceptable safety profile. Its superiority in monotherapy when compared with other biologic agents makes it the drug of choice for patients who are intolerant or have contraindications to traditional DMARDs. However, one of the drawbacks of IV TCZ is the requirement for monthly infusions, which is inherently inconvenient for the patient and associated with increased cost. Subcutaneous (SC) TCZ has now been approved following two clinical trials which showed similar efficacy and safety compared to IV TCZ, and better efficacy compared to placebo (SUMMACTA and BREVACTA trials, respectively). Respiratory infections are the most common side effects in patients receiving SC TCZ. Advantages of SC formulations include convenience and reduced cost compared with IV therapies. Overall, patients tend to have a preference for SC over IV administration of medications. Close monitoring of patients should be undertaken in all cases, paying particular attention to the full blood count, liver enzymes, and cholesterol levels.

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Use of subcutaneous tocilizumab to prepare intravenous solutions for COVID-19 emergency shortage: Comparative analytical study of physicochemical quality attributes.

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