Active clinical trials for "Neoplasm, Residual"

To assess the feasibility, Residual Tumor, complication rate and survival of totally laparoscopic primary cytoreduction in carefully selected patients with Advanced Ovarian Cancer, compared with abdominal primary cytoreduction in a single-Institution, single-surgeon prospective series.

This is a prospective descriptive monocentric study whose purpose is to describe the clonal evolution of the mutational pattern in cfDNA of a cohort of patients with Diffuse Large B-Cell Non-Hodgkin Lymphomas (DLBCL) before, during and after standard treatment

This study aimed to confirmed that local radiotherapy for residual lesions can significantly prolong the efficacy of chemotherapy combined with immunotherapy in the initial treatment of advanced non-small cell lung cancer.

Study purpose is to assess the prognostic role of Minimal Residual Disease (defined as medullary expression of WT1 gene), performed at Baseline and during treatment according to clinical practice. MRD results will be relate to treatment outcome and survival analysis variables (Overall Survival, Disease Free Survival, Cumulative Incidence of Relapse)

RATIONALE: Testing for minimal residual disease in cell samples from patients with acute lymphoblastic leukemia may help doctors plan better treatment. PURPOSE: This research trial studies a genetic test in identifying previously undetectable minimal residual disease in cell samples from younger patients with acute lymphoblastic leukemia.

Patients with acute leukemia relapsing after allotransplant and who respond to anti-leukaemia interventions are at high-risk of a second relapse. Previous studies from investigators reported an association between a positive minimal residual disease (MRD)-test after transplant and an increased risk of subsequent relapse. Also, patients developing chronic graft-versus-host disease (GvHD) after receiving DLI (donor lymphocyte infusion)for leukemia relapse after a first allotransplant have a lower likelihood of a second relapse compared with similar patients not developing chronic GvHD. And, our previous study also reported patients with chronic GvHD after DLI was associated with a greater frequency of a negative MRD-test and lower likelihood of subsequent relapse compared with similar persons not developing chronic GvHD. Based on these data the investigators designed a randomized control study to determine whether giving additional consolidation chemotherapy and DLI might decrease likelihood of second relapse in persons without chronic GvHD or with a positive MRD-test after initial post-relapse therapy with induction chemotherapy and DLI.

A study on the Effectiveness of digital droplet PCR in monitoring measurable residual disease during the early period after allogeneic hematopoietic stem cell transplantation to predict patients at high risk of relapse

Although allogeneic stem cell transplantation is curative in CML, evidence of the BCR-ABL oncogene at low levels is still found in long-term follow-up of survivors. Such low levels of BCR-ABL post-transplant which do not fulfill criteria for molecular relapse are monitored regularly and considered to be suppressed by the GVL effect. Treatment with donor lymphocyte infusions is only instituted when quantifiable BCR-ABL transcript levels rise steadily, indicative of a true molecular relapse . Similarly, BCR-ABL is still detectable in the majority of CML patients treated with imatinib who achieve complete cytogenetic response, although the amount of BCR-ABL transcripts seem to decline with longer follow-up. With 5 years follow-up of CML patients at CP who received imatinib, the estimated cumulative best rates of complete hematologic response and complete cytogenetic response were 98 percent and 87 percent, respectively10. For the minority of CP-CML patients who do not respond satisfactorily to imatinib, second-generation tyrosine kinase inhibitors are now the recommended next line of treatment. A major question facing clinicians is whether imatinib and the other more pharmacologically potent second-generation tyrosine kinase inhibitors;can suppress the CML clone at the leukemic stem cell level as effectively as allogeneic stem cell transplantation. This protocol is designed to scientifically compare the treatment responses of patients who are treated with allogeneic stem cell transplantation with patients who receive imatinib or second generation tyrosine kinase inhibitors. The primary endpoint of this trial will be the proportion of patients who have detected minimal residual disease (DMRD) in primitive CD34 plus progenitor subpopulations no earlier than 60 days from the onset of their respective treatments.

This is a non-interventional multi-center study (NIS) in adult patients with AML in first complete remission with measurable minimal residual disease (MRD). Patients are eligible when gene status was already determined for previous induction and consolidation therapy of AML and showed carrier of NPM1, CBFβ-MYH11, or MLL-AF9 mutation. The study objective is to observe the impact of pre-emptive therapy with histamine dihydrochloride (HDC) and interleukin-2 (IL-2) with regard to assess leukemia-free survival/time to relapse and to monitor MRD level trend over time. HDC and IL-2 are approved drugs for AML patients in first complete remission. Therapy is administered for 10 treatment cycles as outlined in the Summary of Product Characteristics.

Granulocyte-colony stimulating factor (G-CSF) is konwn to have no significant effect on leukemia stem cells and has been widely used in the patients with agranulocytosis after chemotherapy. Minimal residual disease (MRD), an index for early treatment response, plays an important role in prognostic prediction. Numbers of data have shown MRD at day 14 after induction therapy significantly predicts prognosis. However, the retrospetive data from the investigators showed that patients with G-CSF treatment after induction had higher MRD at day 14 but not significantly different at day 28, suggesting that G-CSF might work on the differenciation of hemapoetic stem cells and increase MRD levels at day 14. In this multicenter prospective randomized controlled study, the effect of G-CSF on MRD after induction therapy in newly diagnosed acute myeloid leukemia (AML) is evaluated.