IMRT Followed by CyberKnife Boost Focused on the Gross Residual Pelvic Tumor Volume (Boost_Pelvis)
Intensity Modulated Radiation Treatments Followed by A Stereotactic CyberKnife Boost Focused on the Gross Residual Pelvic Tumor Volume
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
This register concerned patients with any kind of non-resected pelvic cancer for which a brachytherapy Gross Tumor Volume (GTV) boost is non indicated.
- Placement of fiducials First of all, fiducials will be placed near or inside the Gross Tumor Volume (GTV).
- Radiation treatment The radiation treatment will be delivered by Varian Rapid ARC accelerators. 50 Gy will be delivered in the Planning Tumor Volume (PTV) 1 and 60 Gy in the PTV 2 simultaneously in 28 fractions (5 fractions a week) in no more than 40 days. Anytime, 95% of the prescribed dose will have to cover at least 90% of the PTV 1 and PTV 2.
- CK Boost pelvis In the following 14 days after the external beam treatment, two high CyberKnife dose sessions will deliver a pelvic boost of 6.5 Gy each to the initial GTV or eventually to the residual GTV in case of too close vicinity of the organs at risk (OAR). This boost will be planned according to a recent paper, using a new CT scan and MRI scan for planimetric purposes. 95% of the prescribed dose will have to cover at least 90% of the PTV. The maximal CyberKnife tolerated doses to the OAR for a 6.5 Gy dose will be 5 Gy to 2cc of the bladder, rectum or sigmoid structures and 2.5 Gy to 5 cc of the small bowel. The protocol will not require a dose summation of the different steps of the treatment. The total duration of the whole treatment will have to be inferior to 55 days.
4 Follow-up The clinical follow up will be planed weekly during the radiation treatments, and at 2, 4 and 6 months thereafter. The patients will be then followed up every 4 months during the first 2 years and twice yearly thereafter.
A medical imaging using PET Scanner and MRI when possible will be performed at least at 6 months intervals during the first 2 years.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Forventet)
Tilmelding
Kontakter og lokationer
Studiesteder
-
-
SUD
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Esch-sur-Alzette, SUD, Luxembourg, L-4240
- Centre François Baclesse
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- any kind of locally advanced pelvic tumor, non-operable for any reason
- signed informed consent
- concomitant chemotherapy or hormonotherapy unless gemcitabine will not be contraindicated during the treatment
Exclusion Criteria:
- possibility to easily offer the patient a brachytherapy boost
- extra pelvic tumor dissemination above the L3 vertebra
- collagenoses
- any bowel tumor when the digestive tract is not definitely and locally bypassed
- any biologic targeted therapy or anti angiogenic therapy within the 6 weeks preceding the initiation of the radiation treatment, for the first 20 patients. This point will be revisited afterwards and will conduct to an amendment in case of protocol modification
- gemcitabine chemotherapy within the 6 weeks preceding the initiation of the radiation treatment or during the treatment
- hip prostheses
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
CK Boost pelvis
|
50 Gy will be delivered in the PTV 1 and 60 Gy in the PTV 2 simultaneously in 28 fractions (5 fractions a week) in no more than 40 days.
Anytime, 95% of the prescribed dose will have to cover at least 90% of the PTV 1 and PTV 2.
Two high CyberKnife dose sessions will deliver a pelvic boost of 6.5 Gy each to the initial GTV or eventually to the residual GTV in case of too close vicinity of the OAR
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Severe toxicity
Tidsramme: follow up during 3 years after patient inclusion
|
The objective is to confirm an expected toxicity level of severe toxicity < 5%
|
follow up during 3 years after patient inclusion
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Local clinical control rates
Tidsramme: follow up during 3 years after patient inclusion
|
Ths objective is to study the local control rates defined by a study panel board including at least a radiologist specially trained to review the imaging data after high radiation doses per fraction and the coordinator of the register, using PET Scanner, MRI and clinical data
|
follow up during 3 years after patient inclusion
|
|
Extra pelvic dissemination rates
Tidsramme: follow up during 3 years after patient inclusion
|
The objective is to study the dissemination data of the disease above the pelvis
|
follow up during 3 years after patient inclusion
|
|
Ability of the multi leaf collimator to better cover the PTVs and to help shortening the delivery times
Tidsramme: follow up during 3 years after patient inclusion
|
Using the different Conformal Index modalities, the objective is to compare the treatment planning with or without using the multi leaf collimator
|
follow up during 3 years after patient inclusion
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Forventet)
Primær færdiggørelse
Studieafslutning (Forventet)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- CK Boost Pelvis
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
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