Active clinical trials for "Recurrence"

B-acute lymphoblastic leukaemia (ALL) is the most common childhood malignancy. Despite enhancement of childhood B-ALL outcome, relapses remain difficult to treat. Several studies in adult acute myeloid leukaemia have shown that proliferation of immunosuppressive cells -particularly T regulatory (Treg) cells and deficient natural killer (NK) cells- was associated with poor response to chemotherapy. However, few studies have been done on childhood ALL and none on relapse of B-ALL. Moreover, a newly described immunosuppressive B cells subset (Breg cells) seems to have a role in oncogenesis in mice model, but its significance has never been evaluated in human cancers. The purpose of this study is to prospectively evaluate the immune status of children newly diagnosed with first relapse of B-cell ALL, and to compare results with those of children treated for B-ALL in complete remission. Classic lymphocytic phenotype, proportions of immunosuppressive cells (Treg cells, deficient NK cells, Cytotoxic T-lymphocyte-associated protein 4 and/or Programmed T cell death 1) and thymopoiesis will be evaluated. The investigators assume that increase of immunosuppressive cells proportions could be associated with B-ALL relapse.

This pilot study hypothesizes that hyperthermia delivered via magnetic resonance-guided focused ultrasound (MRg-FU) is technically feasible and can be safely used in combination with concurrent reirradiation and chemotherapy for the treatment of recurrent rectal cancer. Twenty recurrent rectal cancer patients who are not candidates for surgery will be recruited for hyperthermia treatment delivered via MRg-FU concurrent with reirradiation and oral chemotherapy.

The combination therapy of temozolomide and radiation has been established as the standard therapy for the initial treatment of glioblastoma. However, the prognosis for patients with recurrent/ refractory glioblastoma is dismal, with a median survival of 3~6 months. There is no efficient and standard care at the time of recurrence or progression following temozolomide administration. Recently, many clinicians have reassessed the efficacy of second-line chemotherapeutic agents such as nitrosoureas for the treatment of recurrent/refractory glioblastoma. It is very important that the effect of the agent is sustained and the adverse effect is reduced to preserve the quality of life in recurrent settings. We have realized that the clinical features of Korean patients are very different from those of foreign patients. Therefore, it is mandatory to develop the new strategy for the treatment of Korean patients. We modify the PCV chemotherapy in the dose and administration schedule of CCNU and procarbazine to reduce the side effect, especially hematologic problems. The dose of CCNU is reduced to 75mg/m2 and the interval between CCNU and procarbazine is increased. Moreover, vincristine is excluded because BBB permeability of vincristine is very poor and the risk of neurotoxicity is high. We introduce the modified PC chemotherapy regimen for the treatment of recurrent/refractory glioblastoma, which is the first multicenter trial for glioblastoma patients in Korea.

The study aims at evaluating the effect of omega-3 on patients suffering recurrent oral aphthous ulcers

RATIONALE: Placing a tumor antigen chimeric receptor that has been created in the laboratory into patient autologous or donor-derived T cells may make the body build immune response to kill cancer cells. PURPOSE: This clinical trial is studying genetically engineered lymphocyte therapy in treating patients with B-cell leukemia or lymphoma that is relapsed (after stem cell transplantation or intensive chemotherapy) or refractory to chemotherapy.

Although vitiligo is difficult to cure, recurrences are frequent after treatment, and many patients suffer from concerns about recurrence as well as disease. Psoriasis, another indication for ultraviolet radiation treatment, has been established that it can safely and effectively reduce the recurrence of psoriasis through monthly maintenance therapy. The aim of this study was to evaluate the efficacy of 308-nm excimer laser therapy for the prevention of relapse in vitiligo.

Nucleus accumbens plays important roles in the process of opiate addiction and initial of relapse after detoxification.According to the single-centered preliminary open-labeled prospective trial results, the investigators hypothesize that bilateral stimulation of the NAc will effectively reduce the relapse of the opiate dependence.

Up to 30-40% of the patients may develop bladder recurrance after radical nephroureterectomy for primary upper tract urothelial carcinoma. Bladder tumor needs transurethral resection, which is associated with costs of treatment and potential poor prognosis. Although several randomized controlled trial have shown that prophylactic intravesical chemotherapy could prevent bladder tumor recurrence, the optimal schedule and duration of treatment are unkown. The investigators want to determine the efficiacy of single instillation versus long-term intravesical instillation of pirarubicin for bladder recurrence after radical nephrouretectomy for primary upper tract urothelial carcinoma.

One-third to one-half of patients with AML relapse and in general relapsed AML patients have a poor prognosis. The treatment of relapsed AML consists of induction chemotherapy followed by Allogenic Stem Cell Transplant (ASCT). However, at present there is no standard salvage chemotherapy regimen for relapsed AML, as no study has shown any one regimen to be significantly superior. Anthracyclines, Fludarabine, Etoposide and cytarabineare active agents in AMLand have been used as monotherapy and in combination in refractory and relapsed AML patients. According to previous studies the present CR rate of different regimens ranges from 50-70%. A retrospective analysis (unpublished) conducted at IRCH, AIIMS on relapsed AML patients treated with ADE (Cytarabine, Daunorubicin and Etoposide) chemotherapy showed the CR rates of approximately 70%. Therefore, we have planned this study to test the efficacy and toxicity of ADE induction chemotherapy in relapsed AML patients in a prospective manner.

To investigate if oral administration of 240mg PAC of cranberries can reduce the number of episodes of acute bacterial cystitis and improve general QoL in women with recurrent bacterial cystitis. In addition, the effect on vagina and rectal flora will studied and the adverse effect profile of the drug will be reported. Women with ≥3 symptomatic episodes of lower UTIs at the previous year will be recruited from the outpatient population who present to their family physician or specialist with symptomatic recurrent UTI. Informed consent will be obtained from all patients and they will be divided in groups according to their age. Urinary culture, vaginal and rectal swab will be taken from all the patients. Antibiotic treatment will be prescribed (using the drug of choice according to the urine culture and the treating physician choice). Subsequently, they will be randomized to receive combined antibiotic treatment with one capsule of Cysticlean 240mg PAC two times per day or antibiotic treatment with placebo. At 14th day post treatment and after a negative urinary culture patients will continue to receive per os, daily, one capsule of Cysticlean 240mg at bed time for 12 months or placebo respectively. Study visits will occur at 3rd, 6th , 9th and 12th month treatment phase. A urine collection, vaginal swabs and rectal swab will be taken at study entry and at the month 3, 6, 9 and 12 visits. Participants will be asked about medication usage, any side effects they may be experiencing at each study visit. If participants develop a UTI at any time during the study, they will be asked to visit the study site within 24 hours.