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5PSQ-143 The role of the pharmacist in increasing health vigilance among health professionals: angioedema following the administration of rituximab
  1. H Daoudi1,2,
  2. FZ Lasri1,2,
  3. O El Qabissi1,2,
  4. S El Marnissi1,2,
  5. M Ait El Cadi1,2
  1. 1Ibn Sina Hospital Uhc Ibn Sina Rabat, Pharmacy, Rabat, Morocco
  2. 2Faculty of Medicine and Pharmacy Rabat, Pharmacology and Toxicology Laboratory, Rabat, Morocco


Background and Importance Angioedema is a rapid swelling of the skin and mucous membranes in the head and neck area and shouldbetreated as an emergency.1 Rituximab is a chimeric monoclonal antibody used in chemotherapy against the CD20 surface molecule.2

Aim and Objectives This workis aimed to evaluate the efficacy and the safety of rituximab administration by determining the causality of suspected angioedema in patients receiving chemotherapy.

Material and Methods We are reporting two cases of angioedema on Rituximab :

  • A 66 years old man with DLBCL who received four courses of RCHOP (Rituximab, Cyclophosphamide, Doxorubicin and Vincristine). On the fifth course and 15 minutes after starting administration of rituximab, he developed angioedema, after that, he received hydrocortisone and adrenaline and was quickly transferred to the intensive care unit, 12 hours later, he was pronounced dead

  • A 52 years old woman with a history of pulmonary tuberculosis treated 18 years ago, treated for marginal zone lymphoma with RCHOP protocol, she presented an angioedema two hours after the start of the rituximab infusion during the 2nd course of the protocol. The patiente received hydrocortisone and adrenaline and she recovered well.

The cause/effect assessment was carried out according to the French method after a thorough investigation.3

Results For both cases, the results showed that rituximab was incriminated with an intrinsic imputability score of I5 and an extrinsic imputability score of B4, caused by administration of a high rate of rituximab (200mg/h) at the start of the infusion.

To avoid this type of adverse event, the hospital pharmacist adjusted the rituximab infusion, starting with infusion rate of 50mg/h for 30 minutes and then increasing by 50mg/h every 30 minutes to reach a maximum of 400mg/h.

Conclusion and Relevance This observation illustrates the role of the hospital pharmacist in making nurses and doctors aware of the risks of administering drugs that can cause angioedema, in particular rituximab, to prevent the risk of incidence and improve vital prognosis.

References and/or Acknowledgements 1. Peter J.Delves, Quincke’s edema MSD manuals

2. Plosker GL, Figgitt DP, «Rituximab: a review of its use in non-Hodgkin’s lymphoma and chronic lymphocytic leukaemia»Drugs 2003;63:803-843

3. Moore N, et al. Adverse drug reaction monitoring: Doing it the French way

Conflict of Interest No conflict of interest

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