SBRT-LATTICE-PATHY
8. juni 2026 oppdatert av: Heloísa de Andrade Carvalho, University of Sao Paulo General Hospital
Impact of Partial Stereotactic Body Radiotherapy in Hypoxic Segments of Large-volume Unresectable Tumors (SBRT-LATTICE-PATHY) - a Prospective Phase II Study.
To assess the importance of using SBRT-LATTICE-PATHY for the radiotherapy treatment of large tumors that would be considered intractable by currently used standard techniques.
In this present study, the investigators will have the possibility of combining SBRT and LATTICE techniques, incorporating the concept of hypoxic tissue irradiation, which are potential modulators of abscopal and bystander effects, performing partial punctual treatment in the vertex region, without the need for irradiation of the entire tissue volume, further improving safety in relation to possible toxicities.
Studieoversikt
Status
Rekruttering
Intervensjon / Behandling
Studietype
Intervensjonell
Registrering (Antatt)
20
Fase
- Fase 2
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiekontakt
- Navn: Principal Investigator
- Telefonnummer: 551126616722
- E-post: heloisa.carvalho@hc.fm.usp.br
Studiesteder
-
-
São Paulo
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São Paulo, São Paulo, Brasil, 05403905
- Rekruttering
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo - Instituto de Radiologia
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Ta kontakt med:
- Principal Investigator
- Telefonnummer: 551126616722
- E-post: heloisa.carvalho@hc.fm.usp.br
-
Underetterforsker:
- Thiago Brasileiro de Freitas, MD
-
Underetterforsker:
- Silvio Thiago Pereira Vasconcelos, MD
-
Underetterforsker:
- Caroline Castilhano Sampaio, Medical physicist
-
-
Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
- Eldre voksen
Tar imot friske frivillige
Nei
Beskrivelse
Inclusion Criteria:
- age =or> 18 years;
- Eastern Cooperative Oncology Group (ECOG) performance status < 2; benign and malignant tumors for which the use of radiotherapy is well established in the literature;
- tumors =or> 340 cm³ or with a largest diameter =or> 7 cm;
- no indication for any other type of treatment due to lack of proven clinical benefit (surgery, chemotherapy, standard radiotherapy, immunotherapy, targeted therapy, etc.);
- Palliative Prognostic Index (PPI) =or< 2;
- metastatic disease in the central nervous system (CNS), if present, controlled (up to 3 metastases, each up to 1 cm);
- up to 5 extracranial distant metastases (nodal or extranodal) =or< 5 cm; signed Informed Consent Form (ICF).
Exclusion Criteria:
- cases in which tumor volume and/or the patient's clinical condition make adequate immobilization/simulation impossible;
- previous local radiotherapy;
- pregnant patients;
- autoimmune diseases;
- genetic instability syndromes;
- ongoing systemic therapy;
- renal insufficiency that prevents the use of iodinated contrast.
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: N/A
- Intervensjonsmodell: Enkeltgruppeoppdrag
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Eksperimentell: SBRT-LATTICE-PATHY
1 fraction of 24Gy in intratumoral vertices
|
SBRT-LATTICE-PATHY, a single dose of 24Gy in intratumoral vertices located in hypoxic regions.
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Rate of local control at 12 months
Tidsramme: From enrollment to the end of treatment at 12 months
|
Percentage of participants achieving local control, defined as absence of local tumor progression assessed by imaging (CT).
|
From enrollment to the end of treatment at 12 months
|
|
Tumor volume shrinkage at 12 months
Tidsramme: From enrollment to the end of treatment at 12 months
|
Percentage reduction in gross tumor volume (GTV) measured by CT at 12 months compared to baseline, calculated as [(baseline volume - follow-up volume) / baseline volume] × 100.
|
From enrollment to the end of treatment at 12 months
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
12-month overall survival rate
Tidsramme: 12 months overall survival
|
Percentage of participants alive at 12 months after treatment initiation.
Overall survival is defined as the time from enrollment to death from any cause.
|
12 months overall survival
|
|
12-month progression-free survival rate
Tidsramme: 12 months Progression Free Survival
|
Percentage of participants alive and without disease progression at 12 months after treatment initiation.
Progression is assessed by CT imaging.
Time is measured from enrollment to the first documented disease progression or death from any cause, whichever occurs first.
|
12 months Progression Free Survival
|
|
Rate of acute adverse events assessed by CTCAE v 5.0
Tidsramme: 15 days, 1 month and 3 months after treatment initiation
|
Incidence and severity of acute adverse events assessed according to the National Cancer Institute Common Terminology Criteria for Adverse Events, version 5.0 (NCI CTCAE v5.0).
Reported as the percentage of participants experiencing grade ≥1 adverse events.
Assessed at 15 days, 1 month, and 3 months after treatment initiation.
|
15 days, 1 month and 3 months after treatment initiation
|
|
Rate of late adverse events assessed by CTCAE v5.0
Tidsramme: 6, 9 and 12 months after treatment completion
|
Incidence and severity of late adverse events assessed according to the National Cancer Institute Common Terminology Criteria for Adverse Events, version 5.0 (NCI CTCAE v5.0).
Reported as the percentage of participants experiencing grade ≥1 adverse events.
Assessed at 6, 9, and 12 months after treatment completion.
|
6, 9 and 12 months after treatment completion
|
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Mean EORTC QLC-C30 Global Health Status / Quality of Life Score)
Tidsramme: Impact in quality of life in 1, 3, 6, 9 and 12 months after treatment completion
|
Quality of life assessed using the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30).
The Global Health Status/QoL subscale is scored from 0 to 100, where higher scores indicate better quality of life.
Assessed at 1, 3, 6, 9, and 12 months after treatment.
|
Impact in quality of life in 1, 3, 6, 9 and 12 months after treatment completion
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Etterforskere
- Hovedetterforsker: Heloisa de Andrade Carvalho, MD, PhD, University of Sao Paulo
Publikasjoner og nyttige lenker
Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.
Generelle publikasjoner
- Yan W, Khan MK, Wu X, Simone CB 2nd, Fan J, Gressen E, Zhang X, Limoli CL, Bahig H, Tubin S, Mourad WF. Spatially fractionated radiation therapy: History, present and the future. Clin Transl Radiat Oncol. 2019 Oct 22;20:30-38. doi: 10.1016/j.ctro.2019.10.004. eCollection 2020 Jan. No abstract available.
- Duriseti S, Kavanaugh JA, Szymanski J, Huang Y, Basarabescu F, Chaudhuri A, Henke L, Samson P, Lin A, Robinson C, Spraker MB. LITE SABR M1: A phase I trial of Lattice stereotactic body radiotherapy for large tumors. Radiother Oncol. 2022 Feb;167:317-322. doi: 10.1016/j.radonc.2021.11.023. Epub 2021 Dec 4.
- Korpics MC, Onderdonk BE, Dadey RE, Hara JH, Karapetyan L, Zha Y, Karrison TG, Olson AC, Fleming GF, Weichselbaum RR, Bao R, Chmura SJ, Luke JJ. Partial tumor irradiation plus pembrolizumab in treating large advanced solid tumor metastases. J Clin Invest. 2023 May 15;133(10):e162260. doi: 10.1172/JCI162260.
- Amendola BE, Perez NC, Wu X, Blanco Suarez JM, Lu JJ, Amendola M. Improved outcome of treating locally advanced lung cancer with the use of Lattice Radiotherapy (LRT): A case report. Clin Transl Radiat Oncol. 2018 Jan 12;9:68-71. doi: 10.1016/j.ctro.2018.01.003. eCollection 2018 Feb.
- Ikeda T, Sun L, Tsuruoka N, Ishigaki Y, Yoshitomi Y, Yoshitake Y, Yonekura H. Hypoxia down-regulates sFlt-1 (sVEGFR-1) expression in human microvascular endothelial cells by a mechanism involving mRNA alternative processing. Biochem J. 2011 Jun 1;436(2):399-407. doi: 10.1042/BJ20101490.
- Tubin S, Popper HH, Brcic L. Novel stereotactic body radiation therapy (SBRT)-based partial tumor irradiation targeting hypoxic segment of bulky tumors (SBRT-PATHY): improvement of the radiotherapy outcome by exploiting the bystander and abscopal effects. Radiat Oncol. 2019 Jan 29;14(1):21. doi: 10.1186/s13014-019-1227-y.
- Tubin S, Ahmed MM, Gupta S. Radiation and hypoxia-induced non-targeted effects in normoxic and hypoxic conditions in human lung cancer cells. Int J Radiat Biol. 2018 Mar;94(3):199-211. doi: 10.1080/09553002.2018.1422085. Epub 2018 Jan 12.
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart (Faktiske)
28. april 2026
Primær fullføring (Antatt)
31. desember 2027
Studiet fullført (Antatt)
31. desember 2027
Datoer for studieregistrering
Først innsendt
3. juni 2026
Først innsendt som oppfylte QC-kriteriene
8. juni 2026
Først lagt ut (Faktiske)
12. juni 2026
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
12. juni 2026
Siste oppdatering sendt inn som oppfylte QC-kriteriene
8. juni 2026
Sist bekreftet
1. juni 2026
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- 86859225.3.0000.0068
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
JA
IPD-planbeskrivelse
Spreadsheet data (RedCap), ICF
IPD-delingstidsramme
06-03-2026 to 12-31-2028
Tilgangskriterier for IPD-deling
Reasearchers will be able to acess the IPD and supporting information.
To have access, they must contact the principal investigator who will share the ICF and Study Protocol.
IPD-deling Støtteinformasjonstype
- STUDY_PROTOCOL
- ICF
Legemiddel- og utstyrsinformasjon, studiedokumenter
Studerer et amerikansk FDA-regulert medikamentprodukt
Nei
Studerer et amerikansk FDA-regulert enhetsprodukt
Nei
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .