Find in Library
Search millions of books, articles, and more
Indexed Open Access Databases
Neoadjuvant B-RAF and MEK Inhibitor Targeted Therapy for Adult Papillary Craniopharyngiomas: A New Treatment Paradigm
oleh: Francesco Calvanese, Francesco Calvanese, Timothée Jacquesson, Timothée Jacquesson, Timothée Jacquesson, Romain Manet, Alexandre Vasiljevic, Alexandre Vasiljevic, Alexandre Vasiljevic, Alexandre Vasiljevic, Hélène Lasolle, Hélène Lasolle, Hélène Lasolle, Francois Ducray, Francois Ducray, Francois Ducray, Gerald Raverot, Gerald Raverot, Gerald Raverot, Emmanuel Jouanneau, Emmanuel Jouanneau, Emmanuel Jouanneau, Emmanuel Jouanneau
Format: | Article |
---|---|
Diterbitkan: | Frontiers Media S.A. 2022-06-01 |
Deskripsi
BackgroundSurgical and clinical management of craniopharyngiomas is associated with high long-term morbidity especially in the case of hypothalamic involvement. Improvements in knowledge of craniopharyngioma molecular biology may offer the possibility of safe and effective medical neoadjuvant treatments in a subset of patients harboring papillary subtype tumors with a BRAFV600E mutation.MethodWe report herein two cases of tubero-infundibular and ventricular Papillary Craniopharyngiomas in which BRAF/MEK inhibitor combined therapy was used as adjuvant (Case 1) or neoadjuvant (Case 2) treatment, with a 90% reduction in tumor volume observed after only 5 months. In Case 2 the only surgical procedure used was a minimal invasive biopsy by the trans-ventricular neuroendoscopic approach. As a consequence, targeted therapy was administered in purely neoadjuvant fashion. After shrinkage of the tumor, both patients underwent fractionated radiotherapy on the small tumor remnant to achieve long-term tumor control. A review of a previously reported case has also been performed.ResultThis approach led to tumor control with minimal long-term morbidity in both cases. No side effects or complications were reported after medical treatment and adjuvant radiotherapy.ConclusionOur experience and a review of the literature argue for a change in the current treatment paradigm for Craniopharyngiomas (CPs). In giant and invasive tumors, confirmation of BRAFV600E mutated PCPs by biopsy and BRAF/MEK inhibitor therapy before proposing other treatments may be useful to improve long term outcomes for patients.