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Total Marrow Irradiation With Volumetric Arc Therapy for Patients Unfit for a 12 Gy TBI

NCT03262220 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 10

Last updated 2020-05-14

No results posted yet for this study

Summary

Total body irradiation (TBI) is a standard part of the conditioning regimen for bone marrow transplantation (BMT). Several randomized trials have shown superior outcomes using TBI compared with non TBI-containing regimens. Standard TBI is usually delivered over three days for a total dose of 12 Gy with two daily fractions. However, as demonstrated by our group, increasing the TBI dose above 10 Gy is not necessarily associated with better outcome in patients undergoing allogenic BMT for hematologic malignancies. For this reason, patients older than 40 or grafted after relapse are treated at our center with a reduced-dose 10 Gy TBI regimen. This pilot study wishes to investigate in 10 patients with hematological malignancies unfit for a standard 12 Gy TBI conditioning regimen a more targeted, conformal form of treatment, referred as total marrow (TMI), using volumetric Arc Therapy (VMAT). Our hypothesis is that using this technique that can allow deliver a higher total dose to the target while at the same time assuring to the organs at risk (OAR) the same dose normally delivered with a 10 Gy TBI we will improve the therapeutic ratio in these patients.

Conditions

  • Haematological Malignancy

Interventions

RADIATION

Volumetric Arc Therapy (VMAT)

Total Marrow Irradiation: 12 Gy in 3 fractions of 4 Gy on 3 consecutive days with a concomitant simultaneous integrated boost (SIB) of 4.5 Gy x 3 fractions delivered to active bone marrow (ABM).

Sponsors & Collaborators

  • University Hospital, Geneva

    collaborator OTHER

  • Thomas Zilli

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
40 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-04-11
Primary Completion
2021-04-30
Completion
2025-04-30

Countries

  • Switzerland

Study Locations

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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 NCT03262220 on ClinicalTrials.gov