NCT02520128

A Study of IMRT in Primary Bone and Soft Tissue Sarcoma

A Phase II Study of Intensity Modulated Radiotherapy (IMRT) for Patients With Primary Bone and Soft Tissue Sarcoma

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 191 (actual)
• Sponsor: University College, London · Academic / Other
• Sex: All
• Age: 16 Years
• Healthy volunteers: Not accepted

Summary

IMRiS is a phase II trial which aims to assess the feasibility, efficacy and toxicity of Intensity Modulated Radiotherapy (IMRT) in three different cohorts of patients with primary bone and soft tissue sarcoma and to demonstrate whether IMRT can improve on current clinical outcomes. Cohort 1 of the trial is now closed to recruitment.

Detailed description

IMRiS is a prospective multicentre phase II trial of Intensity Modulated Radiotherapy (IMRT). The trial is aiming to evaluate the role of intensity modulated radiotherapy (IMRT) in soft tissue and bone sarcomas. Three separate sarcoma cohorts will be studied and will be analysed separately. Patients will be enrolled in one of three cohorts depending on the type of sarcoma they have: Cohort 1- Patients with Limb/limb girdle soft tissue sarcoma receiving (neo)-adjuvant radiotherapy. (closed to recruitment) Cohort 2- Patients with Ewing sarcoma of the spine/pelvis receiving definitive radical or (neo)-adjuvant radiotherapy. Cohort 3- Patients with non-Ewing primary bone sarcomas of the spine/pelvis receiving definitive radical or adjuvant radiotherapy. Dose schedules for each Cohort have been indicated in the Trial Arm description. Radiotherapy will be delivered with fixed beam IMRT, arc IMRT techniques, or tomotherapy. All trial patients will be followed up until death or a maximum of three years from the date of registration in the trial. The theoretical advantage to IMRT is the potential reduction in late toxicity and subsequent potential for functional improvement. There have been no prospective studies to date powered to address this, particularly where IMRT is used post-operatively. IMRiS cohort 1 will address this question and establish if the use of IMRT will reduce late normal tissue toxicity. In cohorts 2 \& 3, the aim is to establish if the use of IMRT will enable the achievement of a radiotherapy treatment plan that delivers the optimal dose while keeping within normal tissue tolerances. There have been no clinical trials of IMRT in Ewing sarcoma and there is very little published on the use of IMRT in high grade bone sarcomas and chordomas. It is important to establish the feasibility of IMRT to achieve the required radiation doses to the tumour, and to prospectively document the side effects of treatment in this setting. IMRiS will address this in cohort 2 and cohort 3.

Conditions

• Soft Tissue Sarcoma, Adult
• Ewing Sarcoma
• Bone Sarcoma
• Chordoma

Interventions

Type	Name	Description
RADIATION	Intensity modulated radiotherapy (IMRT)	Intensity modulated radiotherapy (IMRT) is an advanced radiotherapy technique that is able to deliver a highly conformal dose to a target with improved sparing of the surrounding normal tissues from moderate to high radiation doses. IMRT is likely to be of particular benefit for tumours that have complex shapes, or those in close proximity to sensitive normal tissues and critical organs. Reducing the dose to normal tissues may in turn reduce the acute and late side effects of treatment. IMRT can be delivered from multiple fixed beam angles or through rotational arc applications such as volumetric modulated arc therapy (VMAT) and tomotherapy. The radiotherapy is delivered using multiple small beams (beamlets) of non-uniform intensity.

Timeline

• Start date: 2016-03-01
• Primary completion: 2020-06-30
• Completion: 2020-06-30
• First posted: 2015-08-11
• Last updated: 2020-12-02

Locations

28 sites across 2 countries: Ireland, United Kingdom