Mark A. Sydenham

London, ENG, United Kingdom

Last Updated: 09/26/2026

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Found 22 publications

Factors associated with arm swelling in patients undergoing surgery and radiotherapy for breast cancer within the FAST-Forward trial nodal sub-study.

Factors associated with arm swelling in patients undergoing surgery and radiotherapy for breast cancer within the FAST-Forward trial nodal sub-study.

Journal: Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology

Published: March 06, 2026

Hypofractionated breast radiotherapy for 1 week versus 3 weeks (FAST-Forward): 10-year efficacy and late normal tissue effects from a multicentre, open-label, non-inferiority, phase 3, randomised controlled trial and 5-year efficacy results from a randomised axillary substudy.

Hypofractionated breast radiotherapy for 1 week versus 3 weeks (FAST-Forward): 10-year efficacy and late normal tissue effects from a multicentre, open-label, non-inferiority, phase 3, randomised controlled trial and 5-year efficacy results from a randomised axillary substudy.

Journal: The Lancet. Oncology

Published: November 14, 2025

Baseline characteristics predicting lower return rates of missing patient-reported quality of life data over 5 years: evidence from the IMPORT HIGH and IMPORT LOW breast cancer radiotherapy trials.

Baseline characteristics predicting lower return rates of missing patient-reported quality of life data over 5 years: evidence from the IMPORT HIGH and IMPORT LOW breast cancer radiotherapy trials.

Journal: Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology

Published: July 23, 2025

Genomic and spatial analysis of local recurrences following risk-adapted breast radiotherapy in the IMPORT trials.

Genomic and spatial analysis of local recurrences following risk-adapted breast radiotherapy in the IMPORT trials.

Journal: Breast cancer research : BCR

Published: July 11, 2025

Testing a 5-fraction Simultaneous Integrated Boost in Radiotherapy for Breast Cancer: The UK FAST-Forward Boost Trial Opens to Recruitment.

Testing a 5-fraction Simultaneous Integrated Boost in Radiotherapy for Breast Cancer: The UK FAST-Forward Boost Trial Opens to Recruitment.

Journal: Clinical oncology (Royal College of Radiologists (Great Britain))

Published: June 12, 2025

Five-year trends and baseline predictors of patient-reported adverse events following breast radiotherapy with a boost in the IMPORT HIGH phase III randomised controlled trial.

Five-year trends and baseline predictors of patient-reported adverse events following breast radiotherapy with a boost in the IMPORT HIGH phase III randomised controlled trial.

Journal: Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology

Published: May 16, 2025

Patient- and clinician-assessed five-year normal tissue effects following one-week versus three-week axillary radiotherapy for breast cancer: Results from the phase III FAST-Forward trial randomised nodal sub-study.

Patient- and clinician-assessed five-year normal tissue effects following one-week versus three-week axillary radiotherapy for breast cancer: Results from the phase III FAST-Forward trial randomised nodal sub-study.

Journal: Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology

Published: February 09, 2025

Partial-breast radiotherapy after breast conservation surgery for women with early breast cancer (UK IMPORT LOW): 10-year outcomes from a multicentre, open-label, randomised, controlled, phase 3, non-inferiority trial.

Partial-breast radiotherapy after breast conservation surgery for women with early breast cancer (UK IMPORT LOW): 10-year outcomes from a multicentre, open-label, randomised, controlled, phase 3, non-inferiority trial.

Journal: The Lancet. Oncology

Published: January 31, 2025

Regional Lymph Node Delineation variability and its Dosimetric Impact in Breast Cancer Radiotherapy.

Regional Lymph Node Delineation variability and its Dosimetric Impact in Breast Cancer Radiotherapy.

Journal: Clinical oncology (Royal College of Radiologists (Great Britain))

Published: November 11, 2024

One versus three weeks hypofractionated whole breast radiotherapy for early breast cancer treatment: the FAST-Forward phase III RCT.

One versus three weeks hypofractionated whole breast radiotherapy for early breast cancer treatment: the FAST-Forward phase III RCT.

Journal: Health technology assessment (Winchester, England)

Published: November 22, 2023

Challenges for breast radiotherapy with SIB: the IMPORT HIGH trial - Authors' reply.

Challenges for breast radiotherapy with SIB: the IMPORT HIGH trial - Authors' reply.

Journal: Lancet (London, England)

Published: September 27, 2023

Dysphagia-optimised intensity-modulated radiotherapy versus standard intensity-modulated radiotherapy in patients with head and neck cancer (DARS): a phase 3, multicentre, randomised, controlled trial.

Dysphagia-optimised intensity-modulated radiotherapy versus standard intensity-modulated radiotherapy in patients with head and neck cancer (DARS): a phase 3, multicentre, randomised, controlled trial.

Journal: The Lancet. Oncology

Published: March 13, 2023

Showing 1-12 of 22

Last Updated: 09/26/2026