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JAMA Oncol. 2018 Apr 1;4(4):483-492. doi: 10.1001/jamaoncol.2017.4996.

Effect of Neoadjuvant Chemotherapy Plus Regional Hyperthermia on Long-term Outcomes Among Patients With Localized High-Risk Soft Tissue Sarcoma: The EORTC 62961-ESHO 95 Randomized Clinical Trial.

Author information

1
Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.
2
Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands.
3
Universitätsklinikum Düsseldorf, Düsseldorf, Germany.
4
Helios Kliniken Berlin-Buch, Berlin, Germany.
5
Charité-Universitätsmedizin Berlin, Berlin, Germany.
6
Mannheim University Medical Center, Mannheim, Germany.
7
Department of General, Visceral, Transplantation, Vascular, and Thoracic Surgery, University Hospital, LMU Munich, Munich, Germany.
8
Radiation Oncology, University of Maryland, Baltimore, United States.
9
Department of Pathology, Rigshospitalet, Copenhagen, Denmark.
10
Haukeland University Hospital, Bergen, Norway.
11
Institute of Medical Informatics, Biometry, and Epidemiology (IBE), LMU Munich, Munich, Germany.
12
Musculoskeletal Oncology, Department of Orthopaedic Surgery, Physical Medicine and Rehabilitation, University Hospital, LMU Munich, Munich, Germany.
13
Institute of Pathology, LMU Munich, Munich, Germany.
14
Munich Cancer Registry (MCR), Munich Tumour Centre (TZM), Department of Medical Informatics, Biometry and Epidemiology (IBE), Klinikum Großhadern, Ludwig-Maximilians-University (LMU), Munich, Germany.
15
Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany.
16
Department of Surgery, Fondazione IRCCS Instituto Nazionale dei Tumori, Milan, Italy.

Abstract

Importance:

Patients with soft tissue sarcoma are at risk for local recurrence and distant metastases despite optimal local treatment. Preoperative anthracycline plus ifosfamide chemotherapy improves outcome in common histological subtypes.

Objective:

To analyze whether the previously reported improvement in local progression-free survival by adding regional hyperthermia to neoadjuvant chemotherapy translates into improved survival.

Design, Setting, and Participants:

Open-label, phase 3 randomized clinical trial to evaluate the efficacy and toxic effects of neoadjuvant chemotherapy plus regional hyperthermia. Adult patients (age ≥18 years) with localized soft tissue sarcoma (tumor ≥5 cm, French Federation Nationale des Centers de Lutte Contre le Cancer [FNCLCC] grade 2 or 3, deep) were accrued across 9 centers (6, Germany; 1, Norway; 1, Austria; 1, United States) from July 1997 to November 2006. Follow-up ended December 2014.

Interventions:

After stratification for tumor presentation and site, patients were randomly assigned to either neoadjuvant chemotherapy consisting of doxorubicin, ifosfamide, and etoposide alone, or combined with regional hyperthermia.

Main Outcomes and Measures:

The primary end point was local progression-free survival. Secondary end points included treatment safety and survival, with survival defined from date of randomization to death due to disease or treatment. Patients lost to follow-up were censored at the date of their last follow-up.

Results:

A total of 341 patients were randomized, and 329 (median [range] age, 51 [18-70] years; 147 women, 182 men) were eligible for the intention-to-treat analysis. By December 2014, 220 patients (67%; 95% CI, 62%-72%) had experienced disease relapse, and 188 (57%; 95% CI, 52%-62%) had died. Median follow-up was 11.3 years. Compared with neoadjuvant chemotherapy alone, adding regional hyperthermia improved local progression-free survival (hazard ratio [HR], 0.65; 95% CI, 0.49-0.86; P = .002). Patients randomized to chemotherapy plus hyperthermia had prolonged survival rates compared with those randomized to neoadjuvant chemotherapy alone (HR, 0.73; 95% CI, 0.54-0.98; P = .04) with 5-year survival of 62.7% (95% CI, 55.2%-70.1%) vs 51.3% (95% CI, 43.7%-59.0%), respectively, and 10-year survival of 52.6% (95% CI, 44.7%-60.6%) vs 42.7% (95% CI, 35.0%-50.4%).

Conclusions and Relevance:

Among patients with localized high-risk soft tissue sarcoma the addition of regional hyperthermia to neoadjuvant chemotherapy resulted in increased survival, as well as local progression-free survival. For patients who are candidates for neoadjuvant treatment, adding regional hyperthermia may be warranted.

Trial Registration:

clinicaltrials.gov Identifier: NCT00003052.

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