Chemoradiotherapy
Chemoradiotherapy (CRT), also called chemoradiation, is a combined cancer treatment in which chemotherapy and radiation therapy are administered as part of the same therapeutic strategy.
Chemoradiotherapy (CRT), also called chemoradiation, is a combined cancer treatment in which chemotherapy and radiation therapy are administered as part of the same therapeutic strategy. The treatments may be given concurrently, with systemic therapy delivered during radiotherapy, or sequentially, such as induction chemotherapy followed by chemoradiotherapy. Chemotherapy can provide systemic control of micrometastatic disease and may also enhance the effects of radiation within the treated tumor.
The biological rationale for CRT is based partly on radiosensitization. Some cytotoxic drugs interfere with DNA replication or repair, alter cell-cycle distribution, or increase tumor-cell susceptibility to radiation-induced DNA damage. The combination can therefore produce greater local tumor control than either modality alone, although it may also increase toxicity. CRT is used in a range of malignancies, including locally advanced rectal, esophageal, cervical, head and neck, pancreatic, and non-small cell lung cancer, as well as selected primary brain tumors. Treatment planning commonly considers tumor stage, resection status, performance status, risk of distant metastasis, and the intended balance between local control, survival, and treatment-related toxicity.
Where the papers sit
14 papers from the last 6 months study chemoradiotherapy directly · updated from PubMed 1 Nov 2026
Study type 6 clinical trials · 4 observational · 1 human data · 2 preclinical · 1 unclassified
Themes 3 themes
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Response Modifiers in Locally Advanced Cancer
Checkpoint blockade is moving into concurrent or consolidation treatment with chemoradiotherapy, including durvalumab, pembrolizumab, and ociperlimab plus tislelizumab. Lymphopenia and weight loss repeatedly identify patients with poorer outcomes despite treatment or nutritional support. Hyperthermia offers a nonimmune sensitization strategy through reduced c-Myc/WSB1/β-catenin signaling in cervical cancer. Whether these additions improve survival consistently across lung, head and neck, and cervical cancers remains unresolved.
5 papers · 35.7%
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Response Prediction in Rectal Cancer
MRI and FDG-PET/CT are being paired with radiomics and gut microbiome profiles to predict response before or after neoadjuvant treatment. Disease-free survival and decision-curve analyses are moving these markers toward clinical risk stratification. Irinotecan intensification is being tested alongside biomarker-guided treatment selection. The open question is whether these signals can reliably identify patients who need escalation or can avoid unnecessary therapy.
4 papers · 28.6%
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Others — Cancer Treatment Sequencing and Outcomes
Treatment sequencing and the added value of radiation are being compared across gastrointestinal, pancreatic, glioma and rare thoracic cancers. Induction or perioperative chemotherapy, preoperative chemoradiotherapy, adjuvant chemoradiotherapy and vorasidenib pretreatment represent distinct disease-specific strategies. Survival, response, metastasis and long-term outcome remain the recurring endpoints. The evidence is too heterogeneous to support one shared treatment direction.
5 papers · 35.7%
Papers
The 14 papers from the last 6 months that study chemoradiotherapy directly, newest first, by theme and by study type. Study types come from PubMed publication types and MeSH headings.
By theme
Response Modifiers in Locally Advanced Cancer (5)
- Weight loss despite nutritional support predicts poor outcomes after postoperative chemoradiotherapy for high-risk head and neck cancer. Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 27 Sept 2026 PMID 42802279
- Hyperthermia sensitizes cervical cancer to chemoradiotherapy by downregulating c-Myc/WSB1/β-catenin expression. International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group · 7 Sept 2026 PMID 42703635
- AdvanTIG-301: a phase III study of ociperlimab plus tislelizumab and concurrent chemoradiotherapy in stage III unresectable non-small cell lung cancer. Journal for immunotherapy of cancer · 26 Aug 2026 PMID 42648750
- Analysis of Lymphopenia in Patients with Stage III Non-small Cell Lung Cancer Treated with Chemoradiotherapy and Consolidation Immunotherapy. Clinical oncology (Royal College of Radiologists (Great Britain)) · 21 Aug 2026 PMID 42628272
- Tumoral and Systemic Immune Correlates of Response to Concurrent Pembrolizumab and Chemoradiotherapy in Patients with Resected High-Risk Head and Neck Squamous Cell Carcinoma. Clinical cancer research : an official journal of the American Association for Cancer Research · 25 Jun 2026 PMID 42347893
Response Prediction in Rectal Cancer (4)
- Radiomics-Driven Imaging Biomarkers for Predicting Chemoradiotherapy Response in Locally Advanced Rectal Cancer. Journal of gastrointestinal cancer · 16 Sept 2026 PMID 42747720
- Utility of 2-[18F]Fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography in assessing treatment response after chemoradiotherapy for cervical cancer. Journal of radiation research · 6 Aug 2026 PMID 42560332
- Addition of irinotecan to chemoradiotherapy as preoperative treatment for locally advanced rectal cancer (ARISTOTLE): a multicentre, open-label, phase 3, randomised controlled trial. The Lancet. Oncology · 27 Jul 2026 PMID 42508427
- Gut microbiome profiles as predictors of response to chemoradiotherapy in locally advanced rectal cancer. Acta microbiologica et immunologica Hungarica · 21 Jul 2026 PMID 42479457
Others — Cancer Treatment Sequencing and Outcomes (5)
- Radiotherapy in Thoracic NUT Carcinoma: A Pooled Analysis of Long-term Survivors and Clinical Outcome Heterogeneity. Archivos de bronconeumologia · 16 Sept 2026 PMID 42749595
- Induction FLOT Chemotherapy Prior to Neoadjuvant Chemoradiotherapy in the Treatment of Lower Esophageal and Proximal Gastric Adenocarcinoma: A Phase II, Single-Arm Clinical Trial. Journal of gastrointestinal cancer · 15 Sept 2026 PMID 42742872
- Older adults with resectable gastric cancer undergoing perioperative chemotherapy or preoperative chemoradiotherapy plus perioperative chemotherapy: A secondary analysis of the AGITG TOPGEAR phase III trial. European journal of cancer (Oxford, England : 1990) · 31 Aug 2026 PMID 42673704
- Vorasidenib improves response to subsequent chemoradiation in a genetically engineered mouse model of IDH-mutant glioma. Science translational medicine · 5 Aug 2026 PMID 42555757
- Adjuvant Chemotherapy ± Chemoradiotherapy for Adenocarcinoma of the Pancreatic Head: Results of the Radiotherapy Random Assignment of NRG Oncology/RTOG 0848. Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 15 Jul 2026 PMID 42456089
By study type
Clinical trials (6)
- Induction FLOT Chemotherapy Prior to Neoadjuvant Chemoradiotherapy in the Treatment of Lower Esophageal and Proximal Gastric Adenocarcinoma: A Phase II, Single-Arm Clinical Trial. Journal of gastrointestinal cancer · 15 Sept 2026 PMID 42742872
- Older adults with resectable gastric cancer undergoing perioperative chemotherapy or preoperative chemoradiotherapy plus perioperative chemotherapy: A secondary analysis of the AGITG TOPGEAR phase III trial. European journal of cancer (Oxford, England : 1990) · 31 Aug 2026 PMID 42673704
- AdvanTIG-301: a phase III study of ociperlimab plus tislelizumab and concurrent chemoradiotherapy in stage III unresectable non-small cell lung cancer. Journal for immunotherapy of cancer · 26 Aug 2026 PMID 42648750
- Addition of irinotecan to chemoradiotherapy as preoperative treatment for locally advanced rectal cancer (ARISTOTLE): a multicentre, open-label, phase 3, randomised controlled trial. The Lancet. Oncology · 27 Jul 2026 PMID 42508427
- Adjuvant Chemotherapy ± Chemoradiotherapy for Adenocarcinoma of the Pancreatic Head: Results of the Radiotherapy Random Assignment of NRG Oncology/RTOG 0848. Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 15 Jul 2026 PMID 42456089
- Tumoral and Systemic Immune Correlates of Response to Concurrent Pembrolizumab and Chemoradiotherapy in Patients with Resected High-Risk Head and Neck Squamous Cell Carcinoma. Clinical cancer research : an official journal of the American Association for Cancer Research · 25 Jun 2026 PMID 42347893
Observational studies and case reports (4)
- Weight loss despite nutritional support predicts poor outcomes after postoperative chemoradiotherapy for high-risk head and neck cancer. Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 27 Sept 2026 PMID 42802279
- Radiomics-Driven Imaging Biomarkers for Predicting Chemoradiotherapy Response in Locally Advanced Rectal Cancer. Journal of gastrointestinal cancer · 16 Sept 2026 PMID 42747720
- Analysis of Lymphopenia in Patients with Stage III Non-small Cell Lung Cancer Treated with Chemoradiotherapy and Consolidation Immunotherapy. Clinical oncology (Royal College of Radiologists (Great Britain)) · 21 Aug 2026 PMID 42628272
- Gut microbiome profiles as predictors of response to chemoradiotherapy in locally advanced rectal cancer. Acta microbiologica et immunologica Hungarica · 21 Jul 2026 PMID 42479457
Human data, design not indexed (1)
- Utility of 2-[18F]Fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography in assessing treatment response after chemoradiotherapy for cervical cancer. Journal of radiation research · 6 Aug 2026 PMID 42560332
Preclinical: animal, cell and lab studies (2)
- Hyperthermia sensitizes cervical cancer to chemoradiotherapy by downregulating c-Myc/WSB1/β-catenin expression. International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group · 7 Sept 2026 PMID 42703635
- Vorasidenib improves response to subsequent chemoradiation in a genetically engineered mouse model of IDH-mutant glioma. Science translational medicine · 5 Aug 2026 PMID 42555757
Unclassified: not yet indexed with MeSH (1)
- Radiotherapy in Thoracic NUT Carcinoma: A Pooled Analysis of Long-term Survivors and Clinical Outcome Heterogeneity. Archivos de bronconeumologia · 16 Sept 2026 PMID 42749595
Written from 14 PubMed abstracts, each one listed by PMID above. Published: 2026-09-18. Drafted by language models from published abstracts; not medical advice.