Clinical results of definitive chemoradiotherapy for cervical esophageal cancer: Comparison of failure pattern and toxicities between intensity‐modulated radiotherapy and 3‐dimensional conformal radiotherapy

Ito, Makoto; Kodaira, Takeshi; Tachibana, Hideki; Tomita, Natsuo; Makita, Chiyoko; Koide, Yutaro; Kato, Daisuke; T, Abe; Muro, Kei; Tajika, Masahiro; Niwa, Yasumasa; Hasegawa, Yasuhisa

doi:10.1002/hed.24909

Cited by 30 publications

(24 citation statements)

References 25 publications

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“…18 However, the prevalence of radiation-related complication with induction chemoradiotherapy in the current literature varies widely. [19][20][21] There is still a lack of evidence and controversy comparing IMRT with 3D-CRT for LANPC. To the best of our knowledge, there is no randomized controlled comparison for IMRT vs. 3D-CRT in LANPC treated with IC-CCRT bringing about acute toxicity.…”

Section: Discussionmentioning

confidence: 99%

WITHDRAWN: Radiation-Induced Acute Injury of Intensity-Modulated Radiotherapy vs. Three-Dimensional Conformal Radiotherapy in Induction Chemotherapy Followed by Concurrent Chemoradiotherapy for Locoregionally Advanced Nasopharyngeal Carcinoma: A Prospective Cohort Study

Yao

Lei

Chen

et al. 2020

Preprint

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Abstract Purpose: Induction chemotherapy (IC) followed by concurrent chemoradiotherapy (CCRT) was the new standard treatment for locoregionally advanced nasopharyngeal carcinoma (LANPC). We aimed to address whether the addition of intensity-modulated radiotherapy (IMRT) compared to three-dimensional conformal radiotherapy (3D-CRT) aggravate radiation-induced acute injury of these patients.Methods: We conducted a prospective study of consecutive patients in the stage III to IVb with biopsy-proven nonmetastatic LANPC who newly underwent radiotherapy and sequentially received IC, followed by CCRT at our institution. Among 182 patients included, 87 (47.80%) were treated with IMRT and 95 (52.20%) with 3D-CRT. Occurring time of radiation-induced toxicities were estimated and compared using the Kaplan-Meier method and Log-rank test. Results: The most severe acute toxicities included oral mucositis in 97.25% and dermatitis in 90.11%. Subset analysis revealed that Grade 3-4 acute dermatitis were significantly higher in the IMRT than 3D-CRT (P=0.0482). Oral mucositis and dermatitis were the earliest occurrence of acute injuries (2 years: 60.44% and 17.58%). Patients in IMRT group achieved significantly lower risk of bone marrow toxicity (Hazard ratio [HR]= 0.426, P=0.0009), but higher risk of leukopenia (HR=1.444, P=0.0344) and gastrointestinal injury (HR=2.383, P=0.0103). Multivariate analyses also demonstrated that IMRT (HR=0.429, P=0.0211), female gender (HR=2.070, P=0.0531) and hepatitis (HR=2.152, P=0.0552) were the independent prognostic factors for bone marrow toxicity. The use of IMRT was a predictive factor of significantly better short-term efficacy, whereas anemia was a significant independent predictor.Conclusions: In a combined regimen of IC followed by CCRT for the treatment of LANPC, IMRT seems to be an aggressive technique with a trend towards increased gastrointestinal and hematological toxicities, but decreased bone marrow toxicity than those treated with 3D-CRT.

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Section: Discussionmentioning

confidence: 99%

WITHDRAWN: Radiation-Induced Acute Injury of Intensity-Modulated Radiotherapy vs. Three-Dimensional Conformal Radiotherapy in Induction Chemotherapy Followed by Concurrent Chemoradiotherapy for Locoregionally Advanced Nasopharyngeal Carcinoma: A Prospective Cohort Study

Yao

Lei

Chen

et al. 2020

Preprint

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“…IMRT and 3D-CRT have been demonstrated an improved treatment outcome and lower skin toxicity in other head and neck cancer, they are the primary radiotherapy techniques for cancer patients during recent decades [18]. However, the prevalence of radiation-related complication with induction chemoradiotherapy in the current literature varies widely [19][20][21]. There is still a lack of evidence and controversy comparing IMRT with 3D-CRT for NPC.…”

Section: Discussionmentioning

confidence: 99%

WITHDRAWN: Radiation-induced acute injury of intensity-modulated radiotherapy versus three-dimensional conformal radiotherapy in induction chemotherapy followed by concurrent chemoradiotherapy for nasopharyngeal carcinoma: a prospective cohort study

Yao

Lei

Chen

et al. 2020

Preprint

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Background: Induction chemotherapy (IC) combined with concurrent chemoradiotherapy (CCRT) was the new standard treatment for nasopharyngeal carcinoma (NPC). We aimed to address whether the addition of intensity-modulated radiotherapy (IMRT) compared to three-dimensional conformal radiotherapy (3D-CRT) aggravate radiation-induced acute injury of these patients. Methods: We conducted a prospective study of consecutive patients with biopsy-proven nonmetastatic NPC who newly underwent radiotherapy and sequentially received IC, followed by CCRT at our institution. Among the 224 patients included, 108 (48.21%) were treated with IMRT and 116 (51.78%) with 3D-CRT. Clinicians evaluated routinely acute injury each day during radiotherapy according to the Radiation Therapy Oncology Group (RTOG). Radiation-induced dermatitis, oral mucositis, bone marrow toxicity and gastrointestinal toxicity were compared using the Kaplan-Meier method and the Log-rank test. Overall survival (OS), locoregional progression-free survival (LRFS) distant metastasis-free survival (DMFS) and progression-free survival (PFS) were analyzed during standard follow-up consultations. Results: There was no difference in patient characteristics between groups; however, IMRT plans had higher docetaxel and nedaplatin compared with 3D-CRT plans. The most severe acute toxicities included oral mucositis in 96.43% and dermatitis in 88.84%. Subset analysis revealed that Grade 3-4 acute dermatitis, oral mucositis and bone marrow toxicity were not significantly lower in the IMRT than 3D-CRT (P>0.05). Patients in IMRT group achieved significantly lower risk of bone marrow toxicity (Hazard ratio [HR]=2.557, P=0.0029) in Kaplan-Meier test, but higher risk of leukopenia (HR=0.492, P=0.0165) and gastrointestinal injury (HR=0.432, P=0.0011). Multivariate analyses also demonstrated that IMRT, male gender and hepatitis were the independent prognostic factor for bone marrow toxicity (HR=2.557, P=0.0032). No significant difference was found between the 3D-CRT and IMRT groups in terms of survival. The use of IMRT was a predictive factor of significantly better short-term efficacy, whereas anemia was a significant independent predictor. Conclusions: In a combined regimen of IC followed by CCRT for the treatment of NPC, IMRT seems to be an aggressive technique with a trend towards increased gastrointestinal and hematological toxicities than those treated with 3D-CRT. Predicting the occurrence time of various side effects is beneficial to early protection and focus on to coherent treatment.

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“…Similarly, there was no statistically significant difference observed in OS, local FFS, and regional FFS between the IMRT group and two-dimensional conformal radiotherapy group in the study conducted by Cao et al [25]. A recent published data from Japan [26] showed that IMRT achieved a significantly better 3-year OS than 3D-CRT (81.6% vs. 57.2%, p=0.037). They found that the sufficient salvage rate was higher in IMRT than 3D-CRT group when locoregional recurrence was presented, which contributed to the difference in OS.…”

Section: Discussionmentioning

confidence: 81%

Intensity-Modulated Radiotherapy versus Three-Dimensional Conformal Radiotherapy in Definitive Chemoradiotherapy for Cervical Esophageal Squamous Cell Carcinoma: Comparison of Survival Outcomes and Toxicities

Chen¹,

Qiu²,

Zhang³

et al. 2020

Cancer Res Treat

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Original ArticlePurpose The purpose of this study was to compare the survival and toxicities in cervical esophageal squamous cell carcinoma (CESCC) treated by concurrent chemoradiothrapy with either three-dimensional conformal radiotherapy (3D-CRT) or intensity-modulated radiotherapy (IMRT) techniques. Materials and MethodsA total of 112 consecutive CESCC patients were retrospectively reviewed. 3D-CRT and IMRT groups had been analyzed by propensity score matching method, with sex, age, Karnofsky performance status, induction chemotherapy, and tumor stage well matched. The Kaplan-Meier method and Cox proportional hazards model were used for overall survival (OS) and progression-free survival (PFS). Toxicities were compared between two groups by Fisher exact test. ResultsWith a median follow-up time of 34.9 months, the 3-year OS (p=0.927) and PFS (p=0.859) rate was 49.6% and 45.8% in 3D-CRT group, compared with 54.4% and 42.8% in IMRT group. The rates of grade ! 3 esophagitis, grade ! 2 pneumonitis, esophageal stricture, and hemorrhage were comparable between two groups, while the rate of tracheostomy dependence was much higher in IMRT group than 3D-CRT group (14.3% vs.1.8%, p=0.032). Radiotherapy technique (hazard ratio [HR], 0.09; 95% confidence interval [CI], 0.01 to 0.79) and pretreatment hoarseness (HR, 0.12; 95% CI 0.02 to 0.70) were independently prognostic of tracheostomy dependence. ConclusionNo survival benefits had been observed while comparing IMRT versus 3D-CRT in CESCC patients. IMRT with fraction dose escalation and pretreatment hoarseness were considered to be associated with a higher risk for tracheostomy dependence. Radiation dose escalation beyond 60 Gy should be taken into account carefully when using IMRT with hypofractionated regimen.

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Clinical results of definitive chemoradiotherapy for cervical esophageal cancer: Comparison of failure pattern and toxicities between intensity‐modulated radiotherapy and 3‐dimensional conformal radiotherapy

Abstract: The IMRT group was comparable with 3D conformal RT group, with a better salvage rate. We recommend extended cervical irradiation for nodal involvement.

Cited by 30 publications

References 25 publications

WITHDRAWN: Radiation-Induced Acute Injury of Intensity-Modulated Radiotherapy vs. Three-Dimensional Conformal Radiotherapy in Induction Chemotherapy Followed by Concurrent Chemoradiotherapy for Locoregionally Advanced Nasopharyngeal Carcinoma: A Prospective Cohort Study

WITHDRAWN: Radiation-Induced Acute Injury of Intensity-Modulated Radiotherapy vs. Three-Dimensional Conformal Radiotherapy in Induction Chemotherapy Followed by Concurrent Chemoradiotherapy for Locoregionally Advanced Nasopharyngeal Carcinoma: A Prospective Cohort Study

WITHDRAWN: Radiation-induced acute injury of intensity-modulated radiotherapy versus three-dimensional conformal radiotherapy in induction chemotherapy followed by concurrent chemoradiotherapy for nasopharyngeal carcinoma: a prospective cohort study

Intensity-Modulated Radiotherapy versus Three-Dimensional Conformal Radiotherapy in Definitive Chemoradiotherapy for Cervical Esophageal Squamous Cell Carcinoma: Comparison of Survival Outcomes and Toxicities

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