Bio

Academic Appointments


Professional Education


  • Pediatric Hem/Onc Fellowship, New York Presbyterian Hospital-Columbia University School of Medicine (2017)
  • Pediatric Residency, Children's Hospital of Philadelphia (2014)
  • MD, Indiana University School of Medicine (2011)
  • BA, Columbia University (2006)

Publications

All Publications


  • Pericardial effusion in Hodgkin lymphoma: a report from the Children's Oncology Group AHOD0031 protocol BLOOD Marks, L. J., McCarten, K. M., Pei, Q., Friedman, D. L., Schwartz, C. L., Kelly, K. M. 2018; 132 (11): 1208–11

    View details for DOI 10.1182/blood-2018-02-834465

    View details for Web of Science ID 000444425900016

    View details for PubMedID 30061157

    View details for PubMedCentralID PMC6137557

  • Outcomes in intermediate-risk pediatric lymphocyte-predominant Hodgkin lymphoma: A report from the Children's Oncology Group. Pediatric blood & cancer Marks, L. J., Pei, Q., Bush, R., Buxton, A., Appel, B., Kelly, K. M., Schwartz, C. L., Friedman, D. L. 2018; 65 (12): e27375

    Abstract

    Optimal management of patients with intermediate-risk lymphocyte-predominant Hodgkin lymphoma (LPHL) is unclear due to their small numbers in most clinical trials. Children's Oncology Group AHOD0031, a randomized phase III trial of pediatric patients with intermediate-risk Hodgkin lymphoma (HL), included patients with LPHL. We report the outcomes of these patients and present directions for future therapeutic strategies.Patients received two cycles of doxorubicin, bleomycin, vincristine, etoposide, prednisone, and cyclophosphamide (ABVE-PC) followed by response evaluation. Slow early responders were randomized to two additional ABVE-PC cycles ± two dexamethasone, etoposide, cisplatin, and cytarabine cycles and all received involved field radiotherapy (IFRT). Rapid early responders (RERs) received two additional ABVE-PC cycles. RERs with complete response (CR) were randomized to IFRT or no further therapy. RERs without CR received IFRT.Ninety-six (5.6%) of 1711 patients on AHOD0031 had LPHL. Patients with LPHL were more likely to achieve RER (93.6% vs. 81.0%; P = 0.002) and CR (74.2% vs. 49.3%; P = 0.000005) following chemotherapy compared with patients with classical HL. Five-year event-free survival (EFS) was superior in patients with LPHL (92.2%) versus classical HL (83.5%) (P = 0.04), without difference in overall survival (OS). Among RERs with CR following chemotherapy (n = 33), there was no difference in EFS or OS between those randomized to receive or not receive IFRT.Children and adolescents with intermediate-risk LPHL represent ideal candidates for response-adapted therapy based on their favorable outcomes. The majority of patients treated with the ABVE-PC backbone achieve RER with CR status and can be treated successfully without IFRT.

    View details for DOI 10.1002/pbc.27375

    View details for PubMedID 30277639

    View details for PubMedCentralID PMC6192844

  • Stroke Prevalence in Children With Sickle Cell Disease in Sub-Saharan Africa: A Systematic Review and Meta-Analysis. Global pediatric health Marks, L. J., Munube, D., Kasirye, P., Mupere, E., Jin, Z., LaRussa, P., Idro, R., Green, N. S. 2018; 5: 2333794X18774970

    Abstract

    Objectives. The prevalence of stroke among children with sickle cell disease (SCD) in sub-Saharan Africa was systematically reviewed. Methods. Comprehensive searches of PubMed, Embase, and Web of Science were performed for articles published between 1980 and 2016 (English or French) reporting stroke prevalence. Using preselected inclusion criteria, titles and abstracts were screened and full-text articles were reviewed. Results. Ten full-text articles met selection criteria. Cross-sectional clinic-based data reported 2.9% to 16.9% stroke prevalence among children with SCD. Using available sickle gene frequencies by country, estimated pediatric mortality, and fixed- and random-effects model, the number of affected individuals is projected as 29 800 (95% confidence interval = 25 571-34 027) and 59 732 (37 004-82 460), respectively. Conclusion. Systematic review enabled the estimation of the number of children with SCD stroke in sub-Saharan Africa. High disease mortality, inaccurate diagnosis, and regional variability of risk hamper more precise estimates. Adopting standardized stroke assessments may provide more accurate determination of numbers affected to inform preventive interventions.

    View details for DOI 10.1177/2333794X18774970

    View details for PubMedID 29785408

    View details for PubMedCentralID PMC5954575

  • Precision Medicine in Children and Young Adults with Hematologic Malignancies and Blood Disorders: The Columbia University Experience FRONTIERS IN PEDIATRICS Marks, L. J., Oberg, J. A., Pendrick, D., Sireci, A. N., Glasser, C., Coval, C., Zylber, R. J., Chung, W. K., Pang, J., Turk, A. T., Hsiao, S. J., Mansukhani, M. M., Bender, J., Kung, A. L., Sulis, M. 2017; 5: 265

    Abstract

    The advent of comprehensive genomic profiling has markedly advanced the understanding of the biology of pediatric hematological malignancies, however, its application to clinical care is still unclear. We present our experience integrating genomic data into the clinical management of children with high-risk hematologic malignancies and blood disorders and describe the broad impact that genomic profiling has in multiple aspects of patient care.The Precision in Pediatric Sequencing Program at Columbia University Medical Center instituted prospective clinical next-generation sequencing (NGS) for high-risk malignancies and blood disorders. Testing included cancer whole exome sequencing (WES) of matched tumor-normal samples or targeted sequencing of 467 cancer-associated genes, when sample adequacy was a concern, and tumor transcriptome (RNA-seq). A multidisciplinary molecular tumor board conducted interpretation of results and final tiered reports were transmitted to the electronic medical record according to patient preferences.Sixty-nine samples from 56 patients with high-risk hematologic malignancies and blood disorders were sequenced. Patients carried diagnoses of myeloid malignancy (n = 25), lymphoid malignancy (n = 25), or histiocytic disorder (n = 6). Six patients had only constitutional WES, performed for a suspicion of an inherited predisposition for their disease. For the remaining 50 patients, tumor was sequenced with matched normal tissue when available. The mean number of somatic variants per sample was low across the different disease categories (2.85 variants/sample). Interestingly, a gene fusion was identified by RNA-seq in 58% of samples who had adequate RNA available for testing. Molecular profiling of tumor tissue led to clinically impactful findings in 90% of patients. Forty patients (80%) had at least one targetable gene variant or fusion identified in their tumor tissue; however, only seven received targeted therapy. Importantly, NGS findings contributed to the refinement of diagnosis and prognosis for 34% of patients. Known or likely pathogenic germline alterations were discovered in 24% of patients involving cancer predisposition genes in 12% of cases.Incorporating whole exome and transcriptome profiling of tumor and normal tissue into clinical practice is feasible, and the value that comprehensive testing provides extends beyond the ability to target-specific mutations.

    View details for DOI 10.3389/fped.2017.00265

    View details for Web of Science ID 000417730800001

    View details for PubMedID 29312904

    View details for PubMedCentralID PMC5732960