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The Stockholm III Trial on Different Preoperative Radiotherapy Regimens in Rectal Cancer

NCT00904813 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 840

Last updated 2021-05-07

Study results available
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Summary

Preoperative radiotherapy (RT) is recommended to many patients with localised rectal cancer, not previously treated with pelvic RT. However, the optimum fractionation, the timing of surgery and the best use of concomitant chemotherapy remains controversial. There are theoretical reasons to believe that radiotherapy given in larger fractions during a shorter period of time might result in more late side effects than giving a conventional, more protracted RT in patients with rectal cancer. In addition, the optimum timing of surgery after RT, with respect to postoperative morbidity, mortality and potential downsizing of the tumour is not known.

To address these questions, a prospective randomized multicenter trial was initiated, the Stockholm III trial, in which patients with primarily resectable rectal cancer were randomized to short-course preoperative RT (5x5 Gy) followed by surgery within one week or after 4-8 weeks or long-course preoperative RT(25x2 Gy) followed by surgery after 4-8 weeks.

Conditions

Interventions

RADIATION

Short-course RT

Preoperative radiotherapy (RT) given 5 times 5 Gray during five consecutive days, preferably Monday - Friday, with a four-field box technique, including the primary tumour and the primary and secondary lymph nodes in the pelvis.

RADIATION

Long-course RT

Preoperative radiotherapy (RT) given 2 Gy in 25 fractions during 5 weeks, total dose 50 Gy with a four-field box technique, including the primary tumour and the primary and secondary lymph nodes in the pelvis.

Sponsors & Collaborators

  • Swedish Cancer Society

    collaborator OTHER

  • The Swedish Research Council

    collaborator OTHER_GOV

  • Karolinska Institutet

    lead OTHER

Principal Investigators

  • Anna Martling, Professor · Karolinska Institutet

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
1998-11-30
Primary Completion
2015-02-28
Completion
2018-03-31

Countries

  • Sweden

Study Locations

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Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00904813 on ClinicalTrials.gov