Human epidermal growth factor receptor-2 (HER2) is a potential therapeutic target in extramammary Paget's disease of the vulva.
Adult
Antineoplastic Agents, Immunological
/ administration & dosage
Antineoplastic Combined Chemotherapy Protocols
/ administration & dosage
Fatal Outcome
Female
Humans
Middle Aged
Neoplasm Recurrence, Local
Off-Label Use
Paclitaxel
/ administration & dosage
Paget Disease, Extramammary
/ drug therapy
Receptor, ErbB-2
/ metabolism
Trastuzumab
/ administration & dosage
Vulvar Neoplasms
/ drug therapy
extramammary
paget disease
Journal
International journal of gynecological cancer : official journal of the International Gynecological Cancer Society
ISSN: 1525-1438
Titre abrégé: Int J Gynecol Cancer
Pays: England
ID NLM: 9111626
Informations de publication
Date de publication:
11 2020
11 2020
Historique:
received:
19
06
2020
revised:
01
09
2020
accepted:
03
09
2020
pubmed:
2
10
2020
medline:
11
11
2021
entrez:
1
10
2020
Statut:
ppublish
Résumé
Invasive vulvar Paget's disease with over-expression of the human epidermal growth factor receptor 2 (HER2) protein is potentially suitable for targeted therapy, especially in a metastatic setting where no effective treatments are available. Four consecutive patients with HER2 positive advanced vulvar Paget's disease, treated with weekly trastuzumab (loading dose 4 mg/kg, then 2 mg/kg) and paclitaxel (80 mg/m Median age and follow-up of patients were 62.5 years (45-74) and 16 months (6-54), respectively. Complete or partial responses were observed in all patients. Median time to response was 3 months (range 2-4), while median duration of response was 10 months (range 2-34). Case 1 presented with pulmonary and lymph nodes involvement. She experienced a radiological complete response after 24 treatment administrations, and a progression-free survival of 36 months. At disease progression, treatment re-challenge achieved partial response. She is currently receiving treatment with trastuzumab-emtansine. Case 2 was a 74-year-old woman who developed pulmonary metastasis after first-line cisplatin treatment. She had a partial response and a progression-free survival of 10 months. Case 3 had inguinal and para-aortic lymphadenopathy in complete response after 18 treatment administrations. She developed brain metastasis while receiving trastuzumab maintenance. Case 4 was treated for locally advanced disease and experienced a subjective benefit with relief in perineal pain and itching. No unexpected treatment-related side effects were reported. Advanced vulvar Paget's disease is a rare disorder and no standard treatment is available. In the sub-group of HER2 positive disease, weekly paclitaxel-trastuzumab appears to be active and safe, and may be considered a therapeutic option in these patients.
Sections du résumé
BACKGROUND
Invasive vulvar Paget's disease with over-expression of the human epidermal growth factor receptor 2 (HER2) protein is potentially suitable for targeted therapy, especially in a metastatic setting where no effective treatments are available.
METHODS
Four consecutive patients with HER2 positive advanced vulvar Paget's disease, treated with weekly trastuzumab (loading dose 4 mg/kg, then 2 mg/kg) and paclitaxel (80 mg/m
RESULTS
Median age and follow-up of patients were 62.5 years (45-74) and 16 months (6-54), respectively. Complete or partial responses were observed in all patients. Median time to response was 3 months (range 2-4), while median duration of response was 10 months (range 2-34). Case 1 presented with pulmonary and lymph nodes involvement. She experienced a radiological complete response after 24 treatment administrations, and a progression-free survival of 36 months. At disease progression, treatment re-challenge achieved partial response. She is currently receiving treatment with trastuzumab-emtansine. Case 2 was a 74-year-old woman who developed pulmonary metastasis after first-line cisplatin treatment. She had a partial response and a progression-free survival of 10 months. Case 3 had inguinal and para-aortic lymphadenopathy in complete response after 18 treatment administrations. She developed brain metastasis while receiving trastuzumab maintenance. Case 4 was treated for locally advanced disease and experienced a subjective benefit with relief in perineal pain and itching. No unexpected treatment-related side effects were reported.
CONCLUSIONS
Advanced vulvar Paget's disease is a rare disorder and no standard treatment is available. In the sub-group of HER2 positive disease, weekly paclitaxel-trastuzumab appears to be active and safe, and may be considered a therapeutic option in these patients.
Identifiants
pubmed: 32998859
pii: ijgc-2020-001771
doi: 10.1136/ijgc-2020-001771
doi:
Substances chimiques
Antineoplastic Agents, Immunological
0
ERBB2 protein, human
EC 2.7.10.1
Receptor, ErbB-2
EC 2.7.10.1
Trastuzumab
P188ANX8CK
Paclitaxel
P88XT4IS4D
Types de publication
Case Reports
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1672-1677Informations de copyright
© IGCS and ESGO 2020. No commercial re-use. See rights and permissions. Published by BMJ.
Déclaration de conflit d'intérêts
Competing interests: FP reports grants from AstraZeneca, grants, personal fees and other from Roche, personal fees and other from Eli Lilly, personal fees from Amgen, personal fees from Ipsen, personal fees from MSD, personal fees from Takeda, grants and other from Eisai, other from Novartis and Pfizer, outside the submitted work; the other authors have nothing to disclose.