Ambuj Kumar

Summary

Affiliation: H. Lee Moffitt Cancer Center and Research Institute
Country: USA

Publications

  1. ncbi Tandem versus single autologous hematopoietic cell transplantation for the treatment of multiple myeloma: a systematic review and meta-analysis
    Ambuj Kumar
    Department of Health Outcomes and Behavior, Moffitt Cancer Center, Tampa, FL, USA
    J Natl Cancer Inst 101:100-6. 2009
  2. ncbi Systematic review of high dose chemotherapy and autologous haematopoietic stem cell transplantation for chronic lymphocytic leukaemia: what is the published evidence?
    Mohamed A Kharfan-Dabaja
    Division of Blood and Marrow Transplantation, Department of Interdisciplinary Oncology, H Lee Moffitt Cancer Center and Rsearch Institute, University of South Florida, Tampa, FL 33612, USA
    Br J Haematol 139:234-42. 2007
  3. ncbi Are experimental treatments for cancer in children superior to established treatments? Observational study of randomised controlled trials by the Children's Oncology Group
    Ambuj Kumar
    Department of Interdisciplinary Oncology, H Lee Moffitt Cancer Center and Research Institute, University of South Florida, Tampa, FL 33612, USA
    BMJ 331:1295. 2005
  4. ncbi Role of high-dose chemotherapy and autologous hematopoietic cell transplantation in primary systemic amyloidosis: a systematic review
    Rahul Mhaskar
    Department of Health Outcomes and Behavior, Moffitt Cancer Center, Tampa, Florida 33612, USA
    Biol Blood Marrow Transplant 15:893-902. 2009
  5. ncbi Instrumental variable meta-analysis of individual patient data: application to adjust for treatment non-compliance
    Branko Miladinovic
    Center for Evidence based medicine and Health Outcomes Research, University of South Florida, Tampa, FL, USA
    BMC Med Res Methodol 11:55. 2011
  6. ncbi Bisphosphonates in multiple myeloma
    Rahul Mhaskar
    Center for Evidence based medicine and Health Outcomes Research, University of South Florida, Tampa, Florida, USA
    Cochrane Database Syst Rev 3:CD003188. 2010
  7. ncbi Management of multiple myeloma: a systematic review and critical appraisal of published studies
    Ambuj Kumar
    Interdisciplinary Oncology Program of the H Lee Moffitt Cancer and Research Institute, University of South Florida, Tampa, FL 33612, USA
    Lancet Oncol 4:293-304. 2003
  8. ncbi Treatment success in cancer: new cancer treatment successes identified in phase 3 randomized controlled trials conducted by the National Cancer Institute-sponsored cooperative oncology groups, 1955 to 2006
    Benjamin Djulbegovic
    H Lee Moffitt Cancer Center, 12902 Magnolia Dr, MRC, Room 2067H, Tampa, FL 33612, USA
    Arch Intern Med 168:632-42. 2008
  9. ncbi Treatment tolerance and efficacy in geriatric oncology: a systematic review of phase III randomized trials conducted by five National Cancer Institute-sponsored cooperative groups
    Ambuj Kumar
    H Lee Moffitt Cancer Center and Research Institute at the University of South Florida, Tampa, FL 33612, USA
    J Clin Oncol 25:1272-6. 2007
  10. ncbi Evidence-based medicine for rare diseases: implications for data interpretation and clinical trial design
    Madhusmita Behera
    Malignant Hematology Program, H Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, USA
    Cancer Control 14:160-6. 2007

Detail Information

Publications24

  1. ncbi Tandem versus single autologous hematopoietic cell transplantation for the treatment of multiple myeloma: a systematic review and meta-analysis
    Ambuj Kumar
    Department of Health Outcomes and Behavior, Moffitt Cancer Center, Tampa, FL, USA
    J Natl Cancer Inst 101:100-6. 2009
    ..We performed a systematic review and meta-analysis to synthesize the existing evidence related to the effectiveness of tandem vs single AHCT in patients with MM...
  2. ncbi Systematic review of high dose chemotherapy and autologous haematopoietic stem cell transplantation for chronic lymphocytic leukaemia: what is the published evidence?
    Mohamed A Kharfan-Dabaja
    Division of Blood and Marrow Transplantation, Department of Interdisciplinary Oncology, H Lee Moffitt Cancer Center and Rsearch Institute, University of South Florida, Tampa, FL 33612, USA
    Br J Haematol 139:234-42. 2007
    ..It is uncertain whether autograft is superior to conventional therapy. The high incidence of myelodysplastic syndrome (9-12%) is particularly concerning in CLL, where median survival is 9 years...
  3. ncbi Are experimental treatments for cancer in children superior to established treatments? Observational study of randomised controlled trials by the Children's Oncology Group
    Ambuj Kumar
    Department of Interdisciplinary Oncology, H Lee Moffitt Cancer Center and Research Institute, University of South Florida, Tampa, FL 33612, USA
    BMJ 331:1295. 2005
    ....
  4. ncbi Role of high-dose chemotherapy and autologous hematopoietic cell transplantation in primary systemic amyloidosis: a systematic review
    Rahul Mhaskar
    Department of Health Outcomes and Behavior, Moffitt Cancer Center, Tampa, Florida 33612, USA
    Biol Blood Marrow Transplant 15:893-902. 2009
    ..But the quality of our evidence is low, indicating a need for well-designed and adequately powered RCTs to better address the role of AHCT in AL amyloidosis...
  5. ncbi Instrumental variable meta-analysis of individual patient data: application to adjust for treatment non-compliance
    Branko Miladinovic
    Center for Evidence based medicine and Health Outcomes Research, University of South Florida, Tampa, FL, USA
    BMC Med Res Methodol 11:55. 2011
    ..Our objective is to correct for bias in non-experimental data from previously published individual patient data meta-analysis by applying IV methods..
  6. ncbi Bisphosphonates in multiple myeloma
    Rahul Mhaskar
    Center for Evidence based medicine and Health Outcomes Research, University of South Florida, Tampa, Florida, USA
    Cochrane Database Syst Rev 3:CD003188. 2010
    ..Also, with the baseline risk of 35% to 86% for SREs without treatment, we estimate that between six and 15 MM patients should be treated to prevent SRE(s) in one patient. No bisphoshphonate appears to be superior to others...
  7. ncbi Management of multiple myeloma: a systematic review and critical appraisal of published studies
    Ambuj Kumar
    Interdisciplinary Oncology Program of the H Lee Moffitt Cancer and Research Institute, University of South Florida, Tampa, FL 33612, USA
    Lancet Oncol 4:293-304. 2003
    ..We conclude that the quality of total evidence supporting treatment recommendations in myeloma is modest at best and has an ample scope for improvement...
  8. ncbi Treatment success in cancer: new cancer treatment successes identified in phase 3 randomized controlled trials conducted by the National Cancer Institute-sponsored cooperative oncology groups, 1955 to 2006
    Benjamin Djulbegovic
    H Lee Moffitt Cancer Center, 12902 Magnolia Dr, MRC, Room 2067H, Tampa, FL 33612, USA
    Arch Intern Med 168:632-42. 2008
    ..We assessed how often experimental cancer treatments that undergo testing in randomized clinical trials (RCTs) result in discovery of successful new interventions...
  9. ncbi Treatment tolerance and efficacy in geriatric oncology: a systematic review of phase III randomized trials conducted by five National Cancer Institute-sponsored cooperative groups
    Ambuj Kumar
    H Lee Moffitt Cancer Center and Research Institute at the University of South Florida, Tampa, FL 33612, USA
    J Clin Oncol 25:1272-6. 2007
    ..A systematic review to assess the accurate participation of elderly patients in RCTs has not been performed...
  10. ncbi Evidence-based medicine for rare diseases: implications for data interpretation and clinical trial design
    Madhusmita Behera
    Malignant Hematology Program, H Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, USA
    Cancer Control 14:160-6. 2007
    ..The randomized, controlled trial (RCT) is the "gold standard" for establishing the effect of any intervention. This approach, however, is often not feasible with rare diseases such as cutaneous T-cell lymphoma...
  11. ncbi Optimism bias leads to inconclusive results-an empirical study
    Benjamin Djulbegovic
    Department of Medicine, Center for Evidence based medicine and Health Outcomes Research, University of South Florida, Tampa, FL 33612, USA
    J Clin Epidemiol 64:583-93. 2011
    ..We assessed the impact of optimism bias on a proportion of trials that did not answer their research question successfully and explored whether poor accrual or optimism bias is responsible for inconclusive results...
  12. ncbi Multiple myeloma: detecting the effects of new treatments
    Benjamin Djulbegovic
    Division of Hematologic Malignancies, Moffitt Cancer Center and Research Institute, University of South Florida, Tampa, FL 33612, USA
    Lancet 371:1642-4. 2008
  13. ncbi What kind of evidence do patients and practitioners need: evidence profiles based on 5 key evidence-based principles to summarize data on benefits and harms
    Benjamin Djulbegovic
    Department of Interdisciplinary Oncology, H. Lee Moffitt Cancer Center and Research Institute at the University of South Florida, 12902 Magnolia Drive, Tampa, FL 33612, USA
    Cancer Treat Rev 32:572-6. 2006
  14. ncbi Evidence profiles for colo-rectal cancer: benefit/harms data based on the totality of randomized evidence
    Ambuj Kumar
    H. Lee Moffitt Cancer Center and Research Institute at the University of South Florida, Department of Interdisciplinary Oncology and Cancer Prevention and Control, 12902 Magnolia Drive, Tampa, FL 33612, USA
    Cancer Treat Rev 32:577-80. 2006
  15. ncbi Systematic review and meta-analysis of ovarian cancers: estimation of microsatellite-high frequency and characterization of mismatch repair deficient tumor histology
    Tuya Pal
    H Lee Moffitt Cancer Center and Research Institute, Tampa, Florida 33612, USA
    Clin Cancer Res 14:6847-54. 2008
    ....
  16. ncbi Efficacy and safety of prophylactic vaccines against cervical HPV infection and diseases among women: a systematic review & meta-analysis
    Beibei Lu
    Risk Assessment, Detection and Intervention Program, H, Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
    BMC Infect Dis 11:13. 2011
    ..We conducted a systematic review and meta-analysis to assess efficacy and safety of prophylactic HPV vaccines against cervical cancer precursor events in women...
  17. ncbi Salvage radiotherapy increases survival in people with residual disease after chemotherapy for advance diffuse large cell lymphoma
    Ambuj Kumar
    H Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
    Cancer Treat Rev 32:487-90. 2006
  18. ncbi Bad reporting does not mean bad methods for randomised trials: observational study of randomised controlled trials performed by the Radiation Therapy Oncology Group
    Heloisa P Soares
    Department of Interdisciplinary Oncology, H Lee Moffitt Cancer Center and Research Institute, University of South Florida, 12902 Magnolia Drive, Tampa, FL 33612, USA
    BMJ 328:22-4. 2004
    ..Reviewing research protocols and contacting trialists for more information may improve quality assessment...
  19. ncbi Efficacy of rituximab in the setting of steroid-refractory chronic graft-versus-host disease: a systematic review and meta-analysis
    Mohamed A Kharfan-Dabaja
    Department of Blood and Marrow Transplantation, Moffitt Cancer Center, Tampa, Florida, USA
    Biol Blood Marrow Transplant 15:1005-13. 2009
    ....
  20. ncbi Do community health worker interventions improve rates of screening mammography in the United States? A systematic review
    Kristen J Wells
    University of South Florida, Tampa, FL 33612, USA
    Cancer Epidemiol Biomarkers Prev 20:1580-98. 2011
    ..Community health workers (CHW) are lay individuals who are trained to serve as liaisons between members of their communities and health care providers and services...
  21. ncbi Allogeneic hematopoietic cell transplantation for adult acute lymphoblastic leukemia (ALL) in first complete remission
    Joseph Pidala
    Department of Blood and Marrow Transplantation, H Lee Moffitt Cancer Center, Division of Oncologic Sciences, University of South Florida, Tampa, Florida, USA
    Cochrane Database Syst Rev 10:CD008818. 2011
    ....
  22. ncbi Totality of evidence: one of the keys to better oncology management
    Ambuj Kumar
    Department of Interdisciplinary Oncology, H Lee Moffitt Cancer Center and Research Institute, University of South Florida, 12902 Magnolia Dr, Tampa, FL 33612, USA
    J Oncol Manag 14:12-4. 2005
    ..Systematic review is the most promising technique to critically appraise and synthesize the findings and also argues for the totality of evidence, which is important for effective oncology management...
  23. ncbi Nonmyeloablative allogeneic stem-cell transplantation for hematologic malignancies: a systematic review
    Benjamin Djulbegovic
    Malignant Hematology Program, H Lee Moffitt Cancer Center Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, USA
    Cancer Control 10:17-41. 2003
    ..They hypothesize that NM-allo-SCT is equally efficacious to standard allo-SCT but produces less regimen-related toxicity...
  24. ncbi Why evidence based oncology management
    Ambuj Kumar
    Department of Interdisciplinary Oncology, H. Lee Moffitt Cancer Center and Research Institute, University of South Florida, Tampa, FL 33612, USA
    J Oncol Manag 11:13-6. 2002