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PET Adapted Treatment of Patients With Limited Stage DLBCL and no Risk Factors

Treatment of Patients With Diffuse Large B-cell Non-Hodgkins Lymphoma in Stages I and II Without Risk Factors, Adapted to the Response Evaluated With PET CT (Positron Emission Computed Tomography)

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05078840
Enrollment
75
Registered
2021-10-15
Start date
2021-06-01
Completion date
2025-06-01
Last updated
2024-01-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lymphoma, Non-Hodgkin's, Adult

Keywords

PET, DLBCL

Brief summary

Prospective, multicenter, phase IV study, of real-life evidence destined to evaluate the feasibility and efficacy of performing a treatment adapted to PET-CT in patients with stage I and II DLBCL, without poor prognostic factors.

Detailed description

Patients older than 17 years of age, with no upper age limit with a de novo histological diagnosis of DLBCL, in stages I and II and without risk factors, will be included. All patients will have a baseline PET-CT and will undergo 3 cycles of R-CHOP (cyclophosphamide, doxorubicin, vincristine, prednisone). A PET-CT will be performed on day 15-18 of the third cycle that will be centrally reviewed. Those patients with negative PET-CT (Deauville 1, 2 and 3) will receive an additional cycle of R-CHOP and will finish treatment. Patients who have PET-CT with a Deauville 4 score will complete a fourth cycle and then receive radiation therapy to the compromised site. Those patients with a Deauville score of 5 should receive rescue therapy, so they will be outside the protocol. A standardized follow-up of the patients included with tomographic controls will be carried out, evaluating OS (overall survival) and PFS (progression-free survival) at 3 years as the main objectives.

Interventions

OTHEREvaluation of first line treatment in patients with stage I and II LBCL

Evaluation of first line treatment in patients with stage I and II LBCL, without poor prognostic factors with treatment adapted to PET-CT after 3 R-CHOP

Sponsors

Grupo Argentino de Tratamiento de la Leucemia Aguda
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
17 Years to No maximum

Inclusion criteria

* Patients \> 17 years old with no upper age limit. * Histological diagnosis of DLBCL Stages I or II * Patients who have signed informed consent.

Exclusion criteria

* Patients with elevated LDH (lactate dehydrogenase) * ECOG (Eastern Cooperative Oncology Group) \> 2 * Stage III or IV * Bulky mass (\> 7.5 cm) * Central nervous system involvement * Testicular lymphoma * Breast involvement * Eyeball involvement * Primary mediastinal lymphoma * Cutaneous primary lymphoma * Diffuse large B-cell lymphoma of the leg * HIV positive patients * Platelet count \<100,000 / mcl and total leukocyte count \<3,000 / mcl * Marked impairment of ventricular function (FEy \<50%) * Moderate / severe renal impairment defined by Cl. Cr. \<50 ml / min * Severe liver disease: prothrombin rate \<50% and / or bile level. total\> 2.5 times normal value * Pregnant and breastfeeding * Previous or concomitant diagnosis of indolent lymphoma * Patients who have previously received chemotherapy and / or radiotherapy

Design outcomes

Primary

MeasureTime frame
Evaluate PFS in patients with stage I and II LBCL (large B cell lymphoma), without poor prognostic factors with treatment adapted to PET-CT after 3 R-CHOP.36 months
Evaluate OS in patients with stage I and II LBCL, without poor prognostic factors with treatment adapted to PET-CT after 3 R-CHOP36 months

Secondary

MeasureTime frame
Evaluate the prognostic value of baseline MTV (metabolic tumor volume) in patients with DLBCL under treatment adapted to response after 3 cycles of R-CHOP36 months
Evaluate the prognostic value of baseline TLG (total lesion glycolysis) in patients with DLBCL under treatment adapted to response after 3 cycles of R-CHOP36 months
Evaluate the prognostic value of Δ SUV (standardized uptake value) max in interim PET in patients with DLBCL under treatment adapted to response after 3 cycles of R-CHOP36 months
Evaluate PFS in patients with negative PET after 3rd cycle who shortened treatment to only 4 cycles of R-CHOP.36 months
Compare our results in terms of OS and PFS with those described in patients with treatments adapted to the result of PETi (interim PET) with R-CHOP x 4 (4 cycles of CHOP)36 months
Compare our results in terms of OS and PFS with those described in patients with treatments adapted to the result of PETi with R-CHOPx4+ 2 Rituximab or R-CHOPx 4 + ISRT (involved site radiation therapy) + Zevalin36 months
Compare our results in terms of OS and PFS with those described in patients with treatments adapted to the result of PETi with R-CHOPx 4 + RTCC + Zevalin36 months
Compare our results in terms of OS and PFS with those described in patients treated with R-CHOP x636 months
Evaluate PFS in patients with positive PET after 3rd cycle who continue treatment with R-CHOP x 1 and Radiotherapy.36 months

Countries

Argentina

Contacts

Primary ContactAstrid Pavlovsky, Dr.
astridp@intramed.net5491150613683
Backup ContactPaula Freigeiro
gatla.ar@gmail.com5491140470052

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026