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Use of sirolimus in the treatment of lymphangioleiomyomatosis: favorable responses in patients with different extrapulmonary manifestations / Uso de sirolimo no tratamento de linfangioleiomiomatose: resposta favorável em pacientes com diferentes manifestações extrapulmonares
Freitas, Carolina Salim Gonçalves; Baldi, Bruno Guedes; Araújo, Mariana Sponholz; Heiden, Glaucia Itamaro; Kairalla, Ronaldo Adib; Carvalho, Carlos Roberto Ribeiro.
  • Freitas, Carolina Salim Gonçalves; University of São Paulo. School of Medicine. Hospital das Clínicas. São Paulo. BR
  • Baldi, Bruno Guedes; University of São Paulo. School of Medicine. Hospital das Clínicas. São Paulo. BR
  • Araújo, Mariana Sponholz; University of São Paulo. School of Medicine. Hospital das Clínicas. São Paulo. BR
  • Heiden, Glaucia Itamaro; University of São Paulo. School of Medicine. Hospital das Clínicas. São Paulo. BR
  • Kairalla, Ronaldo Adib; University of São Paulo. School of Medicine. Hospital das Clínicas. São Paulo. BR
  • Carvalho, Carlos Roberto Ribeiro; University of São Paulo. School of Medicine. Hospital das Clínicas. São Paulo. BR
J. bras. pneumol ; 41(3): 275-280, May-Jun/2015. tab, graf
Article in English | LILACS | ID: lil-751965
ABSTRACT

OBJECTIVE:

Lymphangioleiomyomatosis (LAM) is a rare disease that is currently considered a low-grade neoplasm with metastatic potential and variable progression. Mammalian target of rapamycin (mTOR) inhibitors, such as sirolimus and everolimus, have recently become a treatment option for LAM patients, especially those with extrapulmonary manifestations. The objective of the present study was to describe a case series of four patients with LAM in Brazil who showed significant improvement, particularly in their extrapulmonary manifestations, after treatment with sirolimus (at 1-4 mg/day).

METHODS:

We describe four cases of LAM patients with different extrapulmonary manifestations who were treated with sirolimus.

RESULTS:

After treatment with sirolimus for 12 months, one patient presented resolution of severe chylothorax; one had a significant reduction in renal angiomyolipoma volume; and one showed significant regression of retroperitoneal lymphangioleiomyomas and abdominal lymph node enlargement. After treatment with sirolimus for 6 months, the remaining patient had a significant reduction in the volume of a massive retroperitoneal lymphangioleiomyoma.

CONCLUSIONS:

Our findings confirm that mTOR inhibitors are beneficial for patients with LAM, especially those with extrapulmonary manifestations, such as renal angiomyolipoma, lymphangioleiomyomas, and chylous effusions. However, certain aspects, such as the optimal dose, duration of treatment, and long-term adverse effects, have yet to be sufficiently clarified for mTOR inhibitors to be incorporated into LAM management protocols. .
RESUMO

OBJETIVO:

A linfangioleiomiomatose (LAM) é uma doença rara que é atualmente considerada uma neoplasia de baixo grau com potencial metastático e evolução variável. Os inibidores de mammalian target of rapamycin (mTOR), como o sirolimo e o everolimo, recentemente se tornaram uma opção para o tratamento de pacientes com LAM, especialmente daqueles com manifestações extrapulmonares. O objetivo deste estudo foi descrever quatro casos de pacientes com LAM no Brasil que apresentaram melhora, especialmente das manifestações extrapulmonares, após tratamento com sirolimo (em doses de 1-4 mg/dia).

MÉTODOS:

Descrevemos quatro casos de pacientes com LAM e diferentes manifestações extrapulmonares tratados com sirolimo.

RESULTADOS:

Após o tratamento com sirolimo por 12 meses, um paciente apresentou resolução do quilotórax de difícil manejo, um paciente teve redução significativa do volume do angiomiolipoma renal, e uma paciente apresentou regressão importante de linfangioleiomiomas retroperitoneais e linfonodomegalias abdominais. Após tratamento com sirolimo por 6 meses, um paciente apresentou redução significativa de volumoso linfangioleiomioma retroperitoneal.

CONCLUSÕES:

Nossos achados confirmam que os inibidores de mTOR são benéficos para pacientes com LAM, especialmente para aqueles com manifestações extrapulmonares, tais como angiomiolipomas renais, linfangioleiomiomas e derrames de origem quilosa. Entretanto, alguns pontos, tais como a dose ideal, a duração do tratamento e os efeitos adversos em longo prazo, ainda precisam ser esclarecidos para que os inibidores de mTOR possam ser incorporados na abordagem da LAM. .
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Lymphangioleiomyomatosis / Sirolimus / Immunosuppressive Agents / Lung Neoplasms Type of study: Practice guideline Limits: Adult / Female / Humans Language: English Journal: J. bras. pneumol Journal subject: Pulmonary Disease (Specialty) Year: 2015 Type: Article Affiliation country: Brazil Institution/Affiliation country: University of São Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Lymphangioleiomyomatosis / Sirolimus / Immunosuppressive Agents / Lung Neoplasms Type of study: Practice guideline Limits: Adult / Female / Humans Language: English Journal: J. bras. pneumol Journal subject: Pulmonary Disease (Specialty) Year: 2015 Type: Article Affiliation country: Brazil Institution/Affiliation country: University of São Paulo/BR