Hypofractionated, 3-week, preoperative radiotherapy for patients with soft tissue sarcomas (HYPORT-STS): a single-centre, open-label, single-arm, phase 2 trial.
Hypofractionated, 3-week, preoperative radiotherapy for patients with soft tissue sarcomas (HYPORT-STS): a single-centre, open-label, single-arm, phase 2 trial.
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DOI:
10.1016/s1470-2045(22)00638-6
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发表时间:
2022-12
期刊:
影响因子:
51.1
通讯作者:
Bishop, Andrew J.
中科院分区:
文献类型:
--
作者:
Guadagnolo, B. Ashleigh;Bassett, Roland L.;Mitra, Devarati;Farooqi, Ahsan;Hempel, Caroline;Dorber, Courtney;Willis, Tiara;Wang, Wei-Lien;Ratan, Ravin;Somaiah, Neeta;Benjamin, Robert S.;Torres, Keila E.;Hunt, Kelly K.;Scally, Christopher P.;Keung, Emily Z.;Satcher, Robert L.;Bird, Justin E.;Lin, Patrick P.;Moon, Bryan S.;Lewis, Valerae O.;Roland, Christina L.;Bishop, Andrew J.
Standard preoperative radiation therapy (RT) dosing of 50 Gy in 25 fractions for soft tissue sarcoma (STS) results in excellent local control with major wound complications (MWC) in approximately 35% of patients. We report primary endpoint results with 2-year follow-up of a trial of hypofractionated, three-week preoperative RT for STS. We conducted a prospective, single-arm controlled trial at a single tertiary cancer care center in the US. We administered preoperative 42·75 Gy in 15 fractions of 2.85 Gy to adults with non-metastatic STS of the extremity or superficial trunk and ECOG performance status 0–3. The primary endpoint was the MWC rate within 120 days of surgery defined as requiring: (1) secondary operation under either general or regional anesthesia for wound repair, (2) extensive wound management without operation, or (3) readmission to the hospital for wound care. We monitored safety for all enrolled patients per protocol using a Bayesian stopping rule One-Arm Time-To-Event Simulator comparing MWC at 120 days post-surgery among study participants to the historical rate of 35%. Recruitment is complete. Follow-up continues. This trial is registered with ClinicalTrials.gov, NCT03819985. From December 18, 2018 to January 6, 2021, 120 patients were enrolled and received 42·75 Gy (or CGE if protons). Median follow-up was 24 months (IQR 17–30). The MWC rate within 120 days of surgery was 31% (n=37, 95% CI, 24–40%) occurring at median 37 days (IQR 25–59). No patient experienced acute toxicity of CTCAE v4.0 ≥ grade 3, on-treatment serious adverse event, nor treatment related death. Grade ≥3 late toxic effects of RT occurred in 4 patients: 2 femur fracture, 1 lymphedema, 1 skin ulceration. Preoperative 42·75 Gy in 15 daily fractions resulted in a MWC rate that was similar to conventionally fractionated RT and was found to be safe. Long-term oncologic, late toxicity and functional outcomes are awaited. NIH/NCI Cancer Center Support (Core) Grant CA016672 to (PI-Pisters) The University of Texas MD Anderson Cancer Center.