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Altered and Conventional Fractionated Radiotherapy in Patients With Head and Neck Cancer

This study has been completed.
Information provided by:
Institute of Radiotherapy and Oncology, Macedonia Identifier:
First received: February 13, 2006
Last updated: May 3, 2006
Last verified: January 2005
The aim of our study was to evaluate the value of two different altered fractionation schedules – hyperfractionation and accelerated fractionation with concomitant boost – in comparison with conventional fractionation in primary definitive radiotherapy for squamous cell carcinomas of the larynx, oropharynx or hypopharynx. The study began and was conducted while the only teletherapy unit in our department was the cobalt-60 machine. During that period we were expecting the installation of new sophisticated equipment. We assumed that the results of this study would be also able to show whether or not it would be rational to use the altered fractionation regimens on the new machines.

Condition Phase
Head and Neck Cancer Phase 1

Study Type: Observational
Study Design: Observational Model: Defined Population
Observational Model: Natural History
Time Perspective: Longitudinal
Time Perspective: Retrospective/Prospective
Official Title: Hyperfractionation and Accelerated Fractionation in Comparison With Conventional Fractionation in Definitive Radiotherapy of Squamous Cell Carcinoma of Larynx, Oropharynx and Hypopharynx

Resource links provided by NLM:

Further study details as provided by Institute of Radiotherapy and Oncology, Macedonia:

Estimated Enrollment: 152
Study Start Date: March 1999
Estimated Study Completion Date: June 2005
Detailed Description:

Eligible patients admitted from March 1999 to December 2000 were treated with conventionally fractionated radiotherapy. These patients represented the retrospective part of the study. Patients admitted between January 2001 and June 2004 were included in the prospective part of the study. Following the confirmation of their eligibility, altered fractionation schedule assignment was made after stratifying by site of origin (larynx vs oropharynx vs hypopharynx), Karnofsky performance score (60%-70% vs 80%-100%), and stage of disease (I and II vs III and IV). Patients were randomized to receive radiotherapy delivered using either hyperfractionation or accelerated fractionation with concomitant boost as a late accelerating component. Exceptions occurred when patients either refused treatment with two daily fractions or were not offered twice-a-day irradiation because of lack of machine time.

Radiotherapy Scheduling and Technique The conventionally fractionated radiotherapy schedule was 66-70 Gy in 6½ -7 weeks (one fraction of 2 Gy per day, 5 fractions per week), whereas the hyperfractionation treatment schedule was 74.4-79.2 Gy in 6.2-7 weeks (two fractions of 1.2 Gy per day, 10 fractions per week with interfraction interval of at least 6 hours; Figure 1). The treatment schedule in accelerated fractionation using concomitant boost consisted of daily fraction of 1.8 Gy, 5 days a week, up to 32.4 Gy including all sites of disease and electively irradiated areas of the neck, followed by two daily fractions for the last 11-12 days. The first daily fraction encompassed all sites of the disease and electively irradiated neck nodes using a dose of 1.8 Gy, and the second daily fraction was the concomitant boost delivered through reduced fields to encompass the gross disease only, using a fraction of 1.5 Gy up to total doses of 68.7-72 Gy in 6 weeks (Figure 1). The interval between the two daily fractions was at least 6 hours.


Ages Eligible for Study:   18 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:The inclusion criteria were age 18-75 years, Karnofsky performance score equal or more then 60%, and all stages of disease except stage IVC (TNM classification according to International Union Against Cancer and American Joint Committee of Cancer (UICC and AJCC) from 1997). -

Exclusion Criteria:Patients with previous or concurrent malignancy other then basal cell carcinoma were excluded.

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Please refer to this study by its identifier: NCT00291434

Sponsors and Collaborators
Institute of Radiotherapy and Oncology, Macedonia
Principal Investigator: Valentina B Krstevska 2
  More Information

Publications: Identifier: NCT00291434     History of Changes
Other Study ID Numbers: CF vs HF and AF
Study First Received: February 13, 2006
Last Updated: May 3, 2006

Keywords provided by Institute of Radiotherapy and Oncology, Macedonia:
Head and neck cancer
Conventional fractionation
Accelerated fractionation

Additional relevant MeSH terms:
Head and Neck Neoplasms
Neoplasms by Site
Neoplasms processed this record on August 22, 2017