Treatment adaptation for patients with early-stage DLBCL using PET-CT

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)

Observational Grupo Argentino de Tratamiento de la Leucemia Aguda · NCT05078840

This study is testing if changing the treatment for patients with early-stage DLBCL based on PET-CT scan results can help them live longer and stay cancer-free.

Quick facts

Study typeObservational
Enrollment75 (estimated)
Ages17 Years and up
SexAll
SponsorGrupo Argentino de Tratamiento de la Leucemia Aguda Academic / other
Drugs / interventionschemotherapy, radiation, cyclophosphamide, doxorubicin, prednisone
Locations7 sites (Paraná, Entre Ríos and 6 other locations)
Trial IDNCT05078840 on ClinicalTrials.gov

What this trial studies

This observational study evaluates the feasibility and efficacy of adapting treatment based on PET-CT results in patients with limited stage DLBCL who do not have poor prognostic factors. Patients aged over 17 will receive three cycles of R-CHOP chemotherapy, followed by a PET-CT scan to assess treatment response. Depending on the PET-CT results, treatment will be adjusted, with options including additional chemotherapy or radiation therapy. The study aims to monitor overall survival and progression-free survival over a three-year period.

Who should consider this trial

Good fit: Ideal candidates are adults over 17 years old with a confirmed diagnosis of stage I or II DLBCL and no significant risk factors.

Not a fit: Patients with advanced stages of DLBCL or those with poor prognostic factors will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to more personalized and effective treatment strategies for patients with early-stage DLBCL.

How similar studies have performed: While similar approaches using PET-CT for treatment adaptation have shown promise, this specific study's methodology is novel in its focus on early-stage DLBCL without risk factors.

Eligibility criteria

Show full inclusion / exclusion criteria
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

Where this trial is running

Paraná, Entre Ríos and 6 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Lymphoma, Non-Hodgkin's, AdultPETDLBCL
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.