Skip to content

Physicochemical and biological stability study of mogamulizumab in diluted solution

European Statement

Production and Compounding

Author(s)

Emma Pinet, Lionel Barty, Anne Blandine Bouvrain, Françoise Le Cheviller, Nicolas Vaillant, Nathalie Jourdan, Hélène Sauvageon, Isabelle Madelaine

Why was it done?

In order to make hospital preparations in advance and optimize costs, a physicochemical and biological stability study was conducted in the pharmaceutical control laboratory.

What was done?

Mogamulizumab is a monoclonal antibody used in the treatment of Sezary syndrome and mycosis fungoides. The dilution of the 4 mg/ml vial of Poteligeo® in the infusion bag is stable for 24 hours at room temperature between 0.1 to 3 mg/ml.

How was it done?

Four bags of mogamulizumab were prepared in 0.9% NaCl 250 ml (2 at 0.14 mg/ml, 2 at 0.34 mg/ml). Each dilution is evaluated at 20±5°C and at 5±3°C, protected from light for 28 days. Analyses are performed in triplicate by High Performance Liquid Chromatography (HPLC-UV) associated with Chromeleon™ software. Concentrations are measured by HPLC after Flow Injection Analysis (FIA). Physical stability is studied by searching for IgG aggregates by Steric Exclusion Chromatography (Biozen™SEC3 column, 1.8µm 300*4.6mm). Chemical stability is evaluated by assessing acidic and basic variants proportions of the antibody by Cation Exchange Chromatography (CEC) (Biozen™WCX column, 6µm 250*4.6mm). Biological activity is determined by evaluation of the different glycoforms, by affinity chromatography (FcyRIIIa column, 5µm 75*4.6mm Tosoh®). The microbiological stability is performed by seeding the diluted solution on chocolate agar and brain heart broth.

What has been achieved?

At D28, the quantitative determination of mogamulizumab by FIA showed a deviation of less than 10% compared to theoretical concentrations. No aggregates or antibody fragments were found. The proportion of acidic, basic variants and of the main peak did not deviate by more than 5% compared to D0. For all infusion-bags studied by CEC, the main peak rates were between 79.1% and 85.8%, the acidic variant rates between 6.7% and 9.9% and the basic variant rates between 7.8% and 11.2%. The proportion of each antibody species (low, medium, high affinity) did not deviate by 5% from D0. The low affinity rate is between 48.2% and 52.7%, medium between 39.6% and 44.8% and high between 6.9% and 7.9%. No colonies were found on chocolate agar and heart-brain broth.

What next?

Mogamulizumab is physically, chemically and biologically stable for 28 days in diluted solution between 0.14 mg/L and 0.41 mg/L at 5°C and 20°C.

×

EAHP Forum

All the EAHP team is working on providing a Forum that can help connect all the members in Conversations and Groups to talk about important matters for the European Hospital Pharmacist.

The Forum will be accessible for all the EAHP members, you don’t have to create a new account to browse and participate.

Conversations and groups

The Conversations will be moderated by our team to provide documents and relevant topics for the community.

The Groups will connect all members that share a category. Members who work on the same assocation, on the same hospital, that have the same role, etc.

Stay tuned for the realase of the forum. Soon on EAHP.