Doxorubicin plus dacarbazine, doxorubicin plus ifosfamide, or doxorubicin alone as a first-line treatment for advanced leiomyosarcoma : A propensity score matching analysis from the European Organization for Research and Treatment of Cancer Soft Tissue and Bone Sarcoma Group

© 2020 American Cancer Society..

BACKGROUND: The optimal treatment for advanced leiomyosarcoma is still debated. Given histotype-specific prospective controlled data lacking, this study retrospectively evaluated doxorubicin plus dacarbazine, doxorubicin plus ifosfamide, and doxorubicin alone as first-line treatments for advanced/metastatic leiomyosarcoma treated at European Organization for Research and Treatment of Cancer Soft Tissue and Bone Sarcoma Group (EORTC-STBSG) sites.

METHODS: The inclusion criteria were a confirmed histological diagnosis, treatment between January 2010 and December 2015, measurable disease (Response Evaluation Criteria in Solid Tumors 1.1), an Eastern Cooperative Oncology Group performance status ≤2, and an age ≥ 18 years. The endpoints were progression-free survival (PFS), overall survival (OS), and overall response rate (ORR). PFS was analyzed with methods for interval-censored data. Patients were matched according to their propensity scores, which were estimated with a logistic regression model accounting for histology, grade, age, sex, performance status, tumor site, and tumor extent.

RESULTS: Three hundred three patients from 18 EORTC-STBSG sites were identified. One hundred seventeen (39%) received doxorubicin plus dacarbazine, 71 (23%) received doxorubicin plus ifosfamide, and 115 (38%) received doxorubicin. In the 2:1:2 propensity score-matched population (205 patients), the estimated median PFS was 9.2 months (95% confidence interval [CI], 5.2-9.7 months), 8.2 months (95% CI, 5.2-10.1 months), and 4.8 months (95% CI, 2.3-6.0 months) with ORRs of 30.9%, 19.5%, and 25.6% for doxorubicin plus dacarbazine, doxorubicin plus ifosfamide, and doxorubicin alone, respectively. PFS was significantly longer with doxorubicin plus dacarbazine versus doxorubicin (hazard ratio [HR], 0.72; 95% CI, 0.52-0.99). Doxorubicin plus dacarbazine was associated with longer OS (median, 36.8 months; 95% CI, 27.9-47.2 months) in comparison with both doxorubicin plus ifosfamide (median, 21.9 months; 95% CI, 16.7-33.4 months; HR, 0.65; 95% CI, 0.40-1.06) and doxorubicin (median, 30.3 months; 95% CI, 21.0-36.3 months; HR, 0.66; 95% CI, 0.43-0.99). Adjusted analyses retained an effect for PFS but not for OS. None of the factors selected for multivariate analysis had a significant interaction with the received treatment for both PFS and OS.

CONCLUSIONS: This is the largest retrospective study of first-line treatment for advanced leiomyosarcoma. In the propensity score-matched population, doxorubicin and dacarbazine showed favorable activity in terms of both ORR and PFS and warrants further evaluation in prospective trials.

Errataetall:

CommentIn: Cancer. 2020 Oct 15;126(20):4615-4616. - PMID 32767667

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:126

Enthalten in:

Cancer - 126(2020), 11 vom: 01. Juni, Seite 2637-2647

Sprache:

Englisch

Beteiligte Personen:

D'Ambrosio, Lorenzo [VerfasserIn]
Touati, Nathan [VerfasserIn]
Blay, Jean-Yves [VerfasserIn]
Grignani, Giovanni [VerfasserIn]
Flippot, Ronan [VerfasserIn]
Czarnecka, Anna M [VerfasserIn]
Piperno-Neumann, Sophie [VerfasserIn]
Martin-Broto, Javier [VerfasserIn]
Sanfilippo, Roberta [VerfasserIn]
Katz, Daniela [VerfasserIn]
Duffaud, Florence [VerfasserIn]
Vincenzi, Bruno [VerfasserIn]
Stark, Daniel P [VerfasserIn]
Mazzeo, Filomena [VerfasserIn]
Tuchscherer, Armin [VerfasserIn]
Chevreau, Christine [VerfasserIn]
Sherriff, Jenny [VerfasserIn]
Estival, Anna [VerfasserIn]
Litière, Saskia [VerfasserIn]
Sents, Ward [VerfasserIn]
Ray-Coquard, Isabelle [VerfasserIn]
Tolomeo, Francesco [VerfasserIn]
Le Cesne, Axel [VerfasserIn]
Rutkowski, Piotr [VerfasserIn]
Stacchiotti, Silvia [VerfasserIn]
Kasper, Bernd [VerfasserIn]
Gelderblom, Hans [VerfasserIn]
Gronchi, Alessandro [VerfasserIn]
European Organization for Research and Treatment of Cancer Soft Tissue and Bone Sarcoma Group [VerfasserIn]

Links:

Volltext

Themen:

7GR28W0FJI
80168379AG
Dacarbazine
Doxorubicin
Ifosfamide
Journal Article
Leiomyosarcoma
Multicenter Study
Propensity score
Research Support, Non-U.S. Gov't
Retrospective study
Sarcoma
UM20QQM95Y

Anmerkungen:

Date Completed 22.01.2021

Date Revised 12.05.2021

published: Print-Electronic

CommentIn: Cancer. 2020 Oct 15;126(20):4615-4616. - PMID 32767667

Citation Status MEDLINE

doi:

10.1002/cncr.32795

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM307211886