Katherine Steitz, MD, MPH

Professor Clinical Med

Dr. Katherine Van Loon is a Professor of Medicine with clinical expertise in the management of gastrointestinal cancers. She has a particular interest in colorectal and anal cancers.

As Director of the Global Cancer Program at the UCSF Helen Diller Family Comprehensive Cancer Center, Dr. Van Loon oversees UCSF’s portfolio of research and capacity-building projects in low and middle-income countries as well as educational programs for training in global oncology. Her research interest focuses on the epidemiology of gastrointestinal cancers both in the United States and globally, with the aim to improve clinical outcomes and reduce disparities in vulnerable populations.

Dr. Van Loon earned her master's degree in public health from the Yale School of Public Health before attending the Medical College of Georgia. She completed a residency in internal medicine at Beth Israel Deaconess Medical Center, a teaching hospital of Harvard Medical School. She came to UCSF for a fellowship in oncology in 2009 and subsequently joined the faculty at UCSF in 2012.

Dr. Van Loon is a member of the American Society of Clinical Oncology (ASCO), the African Organization for Research and Training in Cancer (AORTIC), and the African Esophageal Cancer Consortium (AfrECC). She has been the recipient of numerous awards in mentorship.

Education
Fellow, 2011 - Medical Oncology, UCSF
Resident, 2009 - Internal Medicine, Beth Israel Deaconess, Harvard Medical School
M.D., 2006 - , Medical College of Georgia
M.P.H., 2002 - , Yale University School of Epidemiology and Public Health
B.S., 2000 - , Duke University
Honors and Awards
  • #SheforShe Award Nomination, Women In Medicine Summit, 2023
  • Faculty Learning and Development Award, UCSF Chancellor's Fund, 2022
  • U.S. Cohort Member, WomenLift Health Leadership Journey, 2021
  • Hematology/Oncology Marc A. Shuman Mentoring Award, UCSF Department of Medicine, 2018
  • Pathways Mentorship Award, UCSF School of Medicine, 2017
  • The Ernest H. Rosenbaum, MD Commitment to Patient Care Award, UCSF Helen Diller Family Comprehensive Cancer Center, 2016
  • Scholar, AHRQ K12 PARTNERS Program, 2013-2015
  • Clinical Investigator Scholarship, North American NeuroEndocrine Tumor Society (NANETS), 2013
  • Young Investigator Award, ASCO Conquer Cancer Foundation, 2012
Websites
Publications

  1. Zeme EL, Van Loon K, Kelley RK, Gordan JD. Emerging Therapies for the Management of Human Epidermal Growth Factor Receptor 2-/ERBB2-Altered Advanced Biliary Tract Cancers. Journal of clinical oncology : official journal of the American Society of Clinical Oncology 2024. PMID: 39102636


  2. Silverstein J, Wright F, Stanfield D, Chien AJ, Wong JM, Park JW, Blanco A, Van Loon K, Atreya CE. Synchronous or metachronous breast and colorectal cancers in younger-than-average-age patients: a case series. The oncologist 2024. PMID: 38856325


  3. Parikh AR, Chee BH, Tsai J, Rich TA, Price KS, Patel SA, Zhang L, Ibrahim F, Esquivel M, Van Seventer EE, Jarnagin JX, Raymond VM, Corvera CU, Hirose K, Nakakura EK, Corcoran RB, Van Loon K, Atreya CE. Minimal Residual Disease using a Plasma-Only Circulating Tumor DNA Assay to Predict Recurrence of Metastatic Colorectal Cancer Following Curative Intent Treatment. Clinical cancer research : an official journal of the American Association for Cancer Research 2024. PMID: 38695832


  4. Van Loon K, Breithaupt L, Ng D, DeBoer RJ, Buckle GC, Bialous S, Hiatt RA, Volberding P, Hermiston ML, Ashworth A. A Roadmap to Establishing Global Oncology as a Priority Initiative within a National Cancer Institute-Designated Cancer Center. Journal of the National Cancer Institute 2023. PMID: 38060289


  5. Keenan BP, Sibley A, Zhang L, Westring AF, Velazquez AI, Bank EM, Bergsland EK, Boreta L, Conroy P, Daras M, Hermiston M, Hsu G, Paris PL, Piawah S, Sinha S, Sosa JA, Tsang M, Venook AP, Wong M, Yom SS, Van Loon K. Evaluation of Culture Conducive to Academic Success by Gender at a Comprehensive Cancer Center. The oncologist 2023. PMID: 37440206


  6. DeBoer RJ, Ho A, Mutoniwase E, Nguyen C, Umutesi G, Bigirimana JB, Nsabimana N, Van Loon K, Shulman LN, Triedman SA, Cubaka VK, Shyirambere C. Ethical dilemmas in prioritizing patients for scarce radiotherapy resources. BMC medical ethics 2024. PMID: 38297294


  7. Ballesteros O, Mark S, Block A, Mackin L, Paul S, Cooper B, Abbott M, Chang S, Hammer MJ, Levine J, Pozzar R, Snowberg K, Tsai K, Van Blarigan E, Van Loon K, Miaskowski CA. COVID-19 pandemic stress and cancer symptom burden. BMJ supportive & palliative care 2023. PMID: 37541779


  8. Kimambo AH, Vuhahula EA, Philipo GS, Mushi BP, Mmbaga EJ, Van Loon K, Ng DL. Rapid Onsite Evaluation for Specimen Adequacy and Triage of Breast Masses in a Low-Resource Setting. Archives of pathology & laboratory medicine 2023. PMID: 37327201


  9. Van Loon K. Expert Commentary on the Colon Cancer and the Pregnant Patient. Diseases of the colon and rectum 2023. PMID: 38085013


  10. Selekwa M, Maina I, Yeh T, Nkya A, Ncogoza I, Nuss RC, Mushi BP, Haddadi S, Van Loon K, Mbaga E, Massawe W, Roberson DW, Dharsee N, Musimu B, Xu MJ. Tracheostomy care quality improvement in low- and middle-income countries: A scoping review. PLOS Global Public Health 2023. PMID: 37943736


  11. Silverstein J, Van Loon K. Risk of Death Due to Pregnancy-Associated Cancers-More Questions Than Answers. JAMA oncology 2023. PMID: 37733335


  12. Van Loon K, Mmbaga EJ, Mushi BP, Selekwa M, Mwanga A, Akoko LO, Mwaiselage J, Mosha I, Ng DL, Wu W, Silverstein J, Mulima G, Kaimila B, Gopal S, Snell JM, Benz SC, Vaske C, Sanborn Z, Sedgewick AJ, Radenbaugh A, Newton Y, Collisson EA. A Genomic Analysis of Esophageal Squamous Cell Carcinoma in Eastern Africa. Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2023. PMID: 37505926


  13. Muya S, Ndumbalo J, Kutika Nyagabona S, Yusuf S, Rhee DJ, Mushi BP, Li B, Zhang L, Grover S, Feng M, Hsu IC, Mmbaga E, Van Loon K, Court L, Xu M. Feasibility and Clinical Acceptability of Automation-Assisted 3D Conformal Radiotherapy Planning for Patients With Cervical Cancer in a Resource-Constrained Setting. JCO global oncology 2023. PMID: 37725767


  14. Hun Kwak J, Mackin LA, Block A, Paul SM, Cooper BA, Abbott M, Chang SM, Hammer MJ, Kober KM, Levine JD, Pozzar R, Rhoads KF, Snowberg KE, Tsai KK, Van Blarigan EL, Van Loon K, Miaskowski C. Risk Factors for a Higher Symptom Burden in Patients With Cancer During the COVID-19 Pandemic. Oncology nursing forum 2023. PMID: 37677766


  15. Kyaw TS, Upadhyay V, Tolstykh I, Van Loon K, Laffan A, Stanfield D, Gempis D, Kenfield SA, Chan JM, Piawah S, Atreya CE, Ng K, Venook A, Kidder W, Turnbaugh PJ, Van Blarigan EL. Variety of fruit and vegetables and alcohol intake are associated with gut microbial species and gene abundance in colorectal cancer survivors. The American journal of clinical nutrition 2023. PMID: 37474105


  16. Liu VN, Zuniga KB, Paciorek A, Zhang L, Chan JM, Carroll PR, Van Loon K, Laffan A, Venook A, Van Blarigan EL, Kenfield SA. Barriers and confidence among colorectal and prostate cancer survivors participating in two behavioral intervention studies. Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer 2023. PMID: 37428241


  17. Savoie MB, Paciorek A, Van Loon K, Anwar M, Atreya CE, Johnson PC, Kenfield SA, Laffan A, Levin AO, Smith JF, Stanfield D, Venook A, Zhang L, Van Blarigan EL, Rowen T. Sexual function remains persistently low in women after treatment for colorectal cancer and anal squamous cell carcinoma. The journal of sexual medicine 2023. PMID: 36805959


  18. Wang L, Langlais C, Kenfield SA, Van Loon K, Laffan A, Atreya CE, Chan JM, Zhang L, Allen IE, Miaskowski C, Fukuoka Y, Meyerhardt JA, Venook AP, Van Blarigan EL. Quality of life among colorectal cancer survivors participating in a pilot randomized controlled trial of a web-based dietary intervention with text messages. Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer 2023. PMID: 36763183


  19. Harwin J, Jha P, Post A, Silverstein J, Van Loon K, Poder L. The radiologist's role in a multidisciplinary approach to cancer in pregnancy. Abdominal radiology (New York) 2023. PMID: 36705722


  20. Chan H, Savoie MB, Munir A, Moslehi J, Anwar M, Laffan A, Rowen T, Salmon R, Varma M, Van Loon K. Multi-Disciplinary Management in Rectal Cancer Survivorship: A Clinical Practice Review. Journal of gastrointestinal cancer 2023. PMID: 36622517


  21. Okerosi S, Mokoh LW, Rubagumya F, Niyibizi BA, Nkya A, Van Loon K, Buckle G, Bent S, Ha P, Fagan JJ, Ng D, Aswani J, Xu MJ. Human Papillomavirus-Associated Head and Neck Malignancies in Sub-Saharan Africa: A Systematic Review. JCO global oncology 2023. PMID: 36730877


  22. Fidelman N, Atreya CE, Griffith M, Milloy MA, Carnevale J, Cinar P, Venook AP, Van Loon K. Phase I prospective trial of TAS-102 (trifluridine and tipiracil) and radioembolization with 90Y resin microspheres for chemo-refractory colorectal liver metastases. BMC cancer 2022. PMID: 36514060


  23. Ngaiza A, Vuhahula E, Yahaya J, Ndayisaba MC, Kawishe GJ, Grenert JP, Zhang L, Van Loon K, Ng DL. Evaluation of Human Epidermal Growth Factor Receptor 2 Expression in Gastric and Gastroesophageal Cancers in Tanzania. 2022. PMID: 35344993


  24. Greenberg AL, Tolstykh IV, Van Loon K, Laffan A, Stanfield D, Steiding P, Kenfield SA, Chan JM, Atreya CE, Piawah S, Kidder W, Venook AP, Van Blarigan EL, Varma MG. Association between adherence to the American Cancer Society Nutrition and Physical Activity Guidelines and stool frequency among colon cancer survivors: a cohort study. Journal of cancer survivorship : research and practice 2022. PMID: 36335220


  25. Sakafu LL, Philipo GS, Malichewe CV, Fundikira LS, Lwakatare FA, Van Loon K, Mushi BP, DeBoer RJ, Bialous SA, Lee AY. Delayed diagnostic evaluation of symptomatic breast cancer in sub-Saharan Africa: A qualitative study of Tanzanian women. PloS one 2022. PMID: 36201503


  26. Silverstein J, Van Loon K. The Implications of the Supreme Court Decision to Overturn Roe v Wade for Women With Pregnancy-Associated Cancers. JAMA oncology 2022. PMID: 35951314


  27. Nomburg J, Bullman S, Nasrollahzadeh D, Collisson EA, Abedi-Ardekani B, Akoko LO, Atkins JR, Buckle GC, Gopal S, Hu N, Kaimila B, Khoshnia M, Malekzadeh R, Menya D, Mmbaga BT, Moody S, Mulima G, Mushi BP, Mwaiselage J, Mwanga A, Newton Y, Ng DL, Radenbaugh A, Rwakatema DS, Selekwa M, Schüz J, Taylor PR, Vaske C, Goldstein A, Stratton MR, McCormack V, Brennan P, DeCaprio JA, Meyerson M, Mmbaga EJ, Van Loon K. An international report on bacterial communities in esophageal squamous cell carcinoma. International journal of cancer 2022. PMID: 35837755


  28. Silverstein J, Van Loon K. Invited Commentary: Role of the Radiologist in Pregnancy-associated Cancer. Radiographics : a review publication of the Radiological Society of North America, Inc 2022. PMID: 35839140


  29. African Esophageal Cancer Consortium. Expanding oesophageal cancer research and care in eastern Africa. 2022. PMID: 35246668


  30. Lipsyc-Sharf M, Zhang S, Ou FS, Ma C, McCleary NJ, Niedzwiecki D, Chang IW, Lenz HJ, Blanke CD, Piawah S, Van Loon K, Bainter TM, Venook AP, Mayer RJ, Fuchs CS, Innocenti F, Nixon AB, Goldberg R, O'Reilly EM, Meyerhardt JA, Ng K. Survival in Young-Onset Metastatic Colorectal Cancer: Findings from Cancer and Leukemia Group B (Alliance)/SWOG 80405. 2021. PMID: 34636852


  31. Manzano-Robleda MDC, Espinosa-Tamez P, Potter MB, Hernández-Guerrero A, Van Loon K, Unger-Saldaña K. Capacidad de colonoscopías diagnósticas en la Ciudad de México 2022. PMID:


  32. Van Loon K, Mohar A, Unger-Saldaña K, Potter MB, Sweet-Cordero EA, Breithaupt L, Espinosa-Tamez P, Sepúlveda-Amor J, Lajous M.. Developing a collaborative international partnership for cancer control in Mexico 2022. PMID:


  33. Chan H, Van Loon K, Kenfield SA, Chan JM, Mitchell E, Zhang L, Paciorek A, Joseph G, Laffan A, Atreya C, Fukuoka Y, Miaskowski C, Meyerhardt JA, Venook AP, Van Blarigan EL. Quality of life of colorectal cancer survivors participating in a pilot randomized controlled trial of physical activity trackers and daily text messages. 2022. PMID: 35119520


  34. Buckle GC, Mmbaga EJ, Paciorek A, Akoko L, Deardorff K, Mgisha W, Mushi BP, Mwaiselage J, Hiatt RA, Zhang L, Van Loon K. Risk Factors Associated With Early-Onset Esophageal Cancer in Tanzania. 2022. PMID: 35113655


  35. Buckle GC, Mrema A, Mwachiro M, Ringo Y, Selekwa M, Mulima G, Some FF, Mmbaga BT, Mody GN, Zhang L, Paciorek A, Akoko L, Ayuo P, Burgert S, Bukusi E, Charles A, Chepkemoi W, Chesumbai G, Kaimila B, Kenseko A, Kibwana KS, Koech D, Macharia C, Moirana EN, Mushi BP, Mremi A, Mwaiselage J, Mwanga A, Ndumbalo J, Nvakunga G, Ngoma M, Oduor M, Oloo M, Opakas J, Parker R, Seno S, Salima A, Servent F, Wandera A, Westmoreland KD, White RE, Williams B, Mmbaga EJ, Van Loon K, of the African Esophageal Cancer Consortium (AfrECC). Treatment outcomes of esophageal cancer in Eastern Africa: protocol of a multi-center, prospective, observational, open cohort study. 2022. PMID: 35045815


  36. Van Blarigan EL, Dhruva A, Atreya CE, Kenfield SA, Chan JM, Milloy A, Kim I, Steiding P, Laffan A, Zhang L, Piawah S, Fukuoka Y, Miaskowski C, Hecht FM, Kim MO, Venook AP, Van Loon K. Feasibility and Acceptability of a Physical Activity Tracker and Text Messages to Promote Physical Activity During Chemotherapy for Colorectal Cancer: Pilot Randomized Controlled Trial (Smart Pace II). 2022. PMID: 35014958


  37. Burns S, Vella M, Paciorek A, Zhang L, Atreya CE, Feng M, Kelley RK, Tempero MA, Van Loon K, Ko AH. Characteristics and Growth Rate of Lung Metastases in Patients With Primary Gastrointestinal Malignancies and Lung-dominant Metastatic Disease: A Retrospective Cohort Analysis. 2021. PMID: 34864778


  38. Dragomanovich HM, Dhruva A, Ekman E, Schoenbeck KL, Kubo A, Van Blarigan EL, Borno HT, Esquivel M, Chee B, Campanella M, Philip EJ, Rettger JP, Rosenthal B, Van Loon K, Venook AP, Boscardin C, Moran P, Hecht FM, Atreya CE. Being Present 2.0: Online Mindfulness-Based Program for Metastatic Gastrointestinal Cancer Patients and Caregivers. 2021. PMID: 35174001


  39. Espinosa-Tamez P, Suazo-Zepeda E, Sánchez-Blas H, Meneses-Medina M, Huitzil-Meléndez FD, Van Loon K, Potter M, Lajous M. National and state-level colorectal cancer mortality trends in Mexico, 1998-2018. 2021. PMID: 35438913


  40. Kimambo AH, Vuhahula EA, Mwakigonja AR, Ljung BM, Zhang L, Van Loon K, Ng DL. Evaluating Estrogen Receptor Immunohistochemistry on Cell Blocks From Breast Cancer Patients in a Low-Resource Setting. Archives of pathology & laboratory medicine 2021. PMID: 33053150


  41. Nyagabona SK, Luhar R, Ndumbalo J, Mvungi N, Ngoma M, Meena S, Siu S, Said M, Mwaiselage J, Tarimo E, Buckle G, Selekwa M, Mushi B, Mmbaga EJ, Van Loon K, DeBoer RJ. Views from Multidisciplinary Oncology Clinicians on Strengthening Cancer Care Delivery Systems in Tanzania. The oncologist 2021. PMID: 34041817


  42. Keenan BP, VAN Loon K, Khilnani AD, Fidelman N, Behr SC, Atreya CE, Oh DY. Molecular and Radiological Features of Microsatellite Stable Colorectal Cancer Cases With Dramatic Responses to Immunotherapy. Anticancer research 2021. PMID: 34083289


  43. Keenan B, Jagsi R, Van Loon K. Pragmatic Solutions to Counteract the Regressive Effects of the COVID-19 Pandemic for Women in Academic Oncology. JAMA oncology 2021. PMID: 33570543


  44. DeBoer RJ, Mutoniwase E, Nguyen C, Ho A, Umutesi G, Nkusi E, Sebahungu F, Van Loon K, Shulman LN, Shyirambere C. Moral Distress and Resilience Associated with Cancer Care Priority Setting in a Resource-Limited Context. The oncologist 2021. PMID: 33969927


  45. Nyagabona SK, Mushi BP, Selekwa M, Philipo GS, Haddadi S, Kadhim EF, Breithaupt L, Maongezi S, Mwaiselage J, Balandya E, Leyna GH, Van Loon K, Mmbaga EJ. A mixed methods needs assessment and gap analysis for establishment of a cancer research training program in East Africa. 2021. PMID: 34722937


  46. Miaskowski C, Paul SM, Snowberg K, Abbott M, Borno HT, Chang SM, Chen LM, Cohen B, Cooper BA, Hammer MJ, Kenfield SA, Kober KM, Laffan A, Levine JD, Pozzar R, Rhoads K, Tsai KK, Van Blarigan EL, Van Loon K. Loneliness and symptom burden in oncology patients during the COVID-19 pandemic. Cancer 2021. PMID: 33905528


  47. Chan H, Zhang L, Choti MA, Kulke M, Yao JC, Nakakura EK, Bloomston M, Benson AB, Shah MH, Strosberg JR, Bergsland EK, Van Loon K. Recurrence Patterns After Surgical Resection of Gastroenteropancreatic Neuroendocrine Tumors: Analysis From the National Comprehensive Cancer Network Oncology Outcomes Database. Pancreas 2021. PMID: 33939661


  48. Susko MS, Lazar AA, Wang CJ, Van Loon K, Feng M, Hope TA, Behr S, Anwar M. Use of advanced PET-volume metrics predicts risk of local recurrence and overall survival in anal cancer. PloS one 2021. PMID: 33539412


  49. Philipo GS, Vuhahula E, Kimambo A, Mmbaga EJ, Van Loon K, Ng DL. Feasibility of Fine-Needle Aspiration Biopsy and Rapid On-Site Evaluation for Immediate Triage in Breast Cancer Screening in Tanzania. JCO global oncology 2021. PMID: 33493018


  50. Mushi BP, Mwachiro MM, Buckle G, Kaimila BN, Mulima G, Kayamba V, Kelly P, Akoko L, Mmbaga EJ, Selekwa M, Ringo Y, Pritchett N, White RE, Topazian MD, Fleischer DE, Dawsey SM, Van Loon K. Improving Access to Self-Expanding Metal Stents for Patients With Esophageal Cancer in Eastern Africa: A Stepwise Implementation Strategy. JCO global oncology 2021. PMID: 33449802


  51. Blanchard C, Lubuzo B, Asirwa FC, Dlamini X, Msadabwe-Chikuni SC, Mwachiro M, Shyirambere C, Ruhangaza D, Milner DA, Van Loon K, DeBoer R, Mtshali P, Dugan U, Baker E, Shulman LN. Multisector Collaborations and Global Oncology: The Only Way Forward. JCO global oncology 2021. PMID: 33493021


  52. Mmbaga EJ, Mushi BP, Deardorff K, Mgisha W, Akoko LO, Paciorek A, Hiatt RA, Buckle GC, Mwaiselage J, Zhang L, Van Loon K. A Case-Control Study to Evaluate Environmental and Lifestyle Risk Factors for Esophageal Cancer in Tanzania. Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2020. PMID: 33144280


  53. Buckle GC, Mahapatra R, Mwachiro M, Akoko L, Mmbaga EJ, White RE, Bent S, Van Loon K. Optimal management of esophageal cancer in Africa: A systemic review of treatment strategies. International journal of cancer 2020. PMID: 32930395


  54. Van Blarigan EL, Zhang S, Ou FS, Venlo A, Ng K, Atreya C, Van Loon K, Niedzwiecki D, Giovannucci E, Wolfe EG, Lenz HJ, Innocenti F, O'Neil BH, Shaw JE, Polite BN, Hochster HS, Atkins JN, Goldberg RM, Mayer RJ, Blanke CD, O'Reilly EM, Fuchs CS, Meyerhardt JA. Association of Diet Quality With Survival Among People With Metastatic Colorectal Cancer in the Cancer and Leukemia B and Southwest Oncology Group 80405 Trial. JAMA network open 2020. PMID: 33125497


  55. Miaskowski C, Paul SM, Snowberg K, Abbott M, Borno H, Chang S, Chen LM, Cohen B, Hammer MJ, Kenfield SA, Kober KM, Levine JD, Pozzar R, Rhoads KF, Van Blarigan EL, Van Loon K. STRESS AND SYMPTOM BURDEN IN ONCOLOGY PATIENTS DURING THE COVID-19 PANDEMIC. Journal of pain and symptom management 2020. PMID: 32889039


  56. DeBoer RJ, Fadelu TA, Shulman LN, Van Loon K. Applying Lessions Learned From Low-Resource Settings to Prioritize Cancer Care in a Pandemic. JAMA oncology 2020. PMID: 32761149


  57. Silverstein J, Post AL, Chien AJ, Olin R, Tsai KK, Ngo Z, Van Loon K. Multidisciplinary Management of Cancer During Pregnancy. JCO oncology practice 2020. PMID: 32910882


  58. Miaskowski C, Paul SM, Snowberg K, Abbott M, Borno H, Chang S, Chen LM, Cohen B, Cooper BA, Hammer MJ, Kenfield SA, Laffan A, Levine JD, Pozzar R, Tsai KK, Van Blarigan EL, Van Loon K. Oncology patients' perceptions of and experiences with COVID-19. Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer 2020. PMID: 32809060


  59. Enzinger A, Uno H, McCleary N, Frank E, Sanoff H, Van Loon K, Matin K, Bullock A, Cronin C, Bagley J, Schrag D. The effect of disclosing life expectancy information on patients' prognostic understanding: secondary outcomes from a multicenter randomized trial of a palliative chemotherapy educational intervention. Journal of pain and symptom management 2020. PMID: 32777456


  60. Enzinger AC, Uno H, McCleary N, Frank E, Sanoff H, Van Loon K, Matin K, Bullock A, Cronin C, Cibotti H, Bagley J, Schrag D. Effectiveness of a Multimedia Educational Intervention to Improve Understanding of the Risks and Benefits of Palliative Chemotherapy in Patients With Advanced Cancer: A Randomized Clinical Trial. JAMA oncology 2020. PMID: 32672806


  61. Remes-Troche JM, Hinojosa-Garza G, Espinosa-Tamez P, Meixueiro-Daza A, Grube-Pagola P, Van Loon K, Potter MB, Lajous M. Faecal immunochemical test-based colorectal cancer screening in Mexico: an initial experience. Family practice 2020. PMID: 31961429


  62. Manzano-Robleda MDC, Espinosa-Tamez P, Potter MB, Lajous M, Van Loon K, Zhang L, Jimenez-Peña A, Sanchez Del Monte J, Mohar-Betancourt A, Hernández-Guerrero A. Fecal immunological test results and diagnostic colonoscopy in a Mexican population at average risk for colorectal cancer. Cancer prevention research (Philadelphia, Pa.) 2020. PMID: 32655008


  63. Unger-Saldaña K, Saldaña-Tellez M, Potter MB, Van Loon K, Allen-Leigh B, Lajous M. Barriers and facilitators for colorectal cancer screening in a low-income urban community in Mexico City. Implementation science communications 2020. PMID: 32885219


  64. Susko M, Wang CJ, Lazar AA, Kim S, Laffan A, Feng M, Ko A, Venook AP, Atreya CE, Van Loon K, Anwar M. Factors Impacting Differential Outcomes in the Definitive Radiation Treatment of Anal Cancer Between HIV-Positive and HIV-Negative Patients. The oncologist 2020. PMID: 32390297


  65. DeBoer RJ, Ndumbalo J, Meena S, Ngoma MT, Mvungi N, Siu S, Selekwa M, Nyagabona SK, Luhar R, Buckle G, Lin TK, Breithaupt L, Kennell-Heiling S, Mushi B, Philipo GS, Mmbaga EJ, Mwaiselage J, Van Loon K. Development of a theory-driven implementation strategy for cancer management guidelines in sub-Saharan Africa. Implementation science communications 2020. PMID: 32885183


  66. Ursem C, Zhou M, Paciorek A, Atreya CE, Ko AH, Venook A, Zhang L, Van Loon K. Clinicopathologic Characteristics and Impact of Oophorectomy for Ovarian Metastases from Colorectal Cancer. The oncologist 2020. PMID: 32031306


  67. Gonzalez A, Walker EJ, VAN Loon K, Cinar P, Atreya CE. Postoperative Exacerbation of Oxaliplatin-induced Neurotoxicity in Gastrointestinal Cancers: A Case Series. Anticancer research 2020. PMID: 32014930


  68. Van Blarigan EL, Kenfield SA, Chan JM, Van Loon K, Paciorek A, Zhang L, Chan H, Savoie MB, Bocobo AG, Liu VN, Wong LX, Laffan A, Atreya CE, Miaskowski C, Fukuoka Y, Meyerhardt JA, Venook AP. Feasibility and acceptability of a web-based dietary intervention with text messages for colorectal cancer: a randomized pilot trial. Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2020. PMID: 31941707


  69. Savoie MB, Paciorek A, Zhang L, Van Blarigan EL, Sommovilla N, Abrams D, Atreya CE, Bergsland EK, Chern H, Kelley RK, Ko A, Laffan A, Sarin A, Varma MG, Venook AP, Van Loon K. Vitamin D Levels in Patients with Colorectal Cancer Before and After Treatment Initiation. Journal of gastrointestinal cancer 2018. PMID: 30058032


  70. Savoie MB, Laffan A, Brickman C, Daniels B, Levin A, Rowen T, Smith J, Van Blarigan EL, Hope TA, Berry-Lawhorn JM, Anwar M, Van Loon K. A multi-disciplinary model of survivorship care following definitive chemoradiation for anal cancer. BMC cancer 2019. PMID: 31510960


  71. Lowenstein LM, Volk RJ, Cuddy A, Hempstead AP, You YN, Van Loon K, Millas S, Meyerhardt JA, Gavin P, Chang GJ. Patients' information needs and attitudes about post-treatment surveillance for colorectal cancer in the United States: a multi-perspective, mixed methods study. BMJ open 2019. PMID: 31420381


  72. Chan H, Moseley C, Zhang L, Bergsland EK, H Pampaloni M, Van Loon K, Hope TA. Correlation of DOTATOC Uptake and Pathologic Grade in Neuroendocrine Tumors. Pancreas 2019. PMID: 31268975


  73. Silverstein J, Kidder W, Fisher SJ, Hope TA, Maisel S, Ng D, Van Zifle J, Atreya C, Van Loon K. Hormone receptor expression of colorectal cancer diagnosed during the peri-partum period. Endocrine connections 2019. PMID: 31370007


  74. Savoie MB, Paciorek A, Zhang L, Sommovilla N, Venook AP, Van Blarigan EL, Van Loon K. Vitamin D Levels in Patients with Colorectal Cancer and Matched Household Members. Journal of clinical nutrition and food science 2019. PMID: 31423489


  75. Kwon DH, Paciorek A, Mulvey CK, Chan H, Fidelman N, Meng L, Nakakura EK, Zhang L, Bergsland EK, Van Loon K. Periprocedural Management of Patients Undergoing Liver Resection or Embolotherapy for Neuroendocrine Tumor Metastases. Pancreas 2019. PMID: 30946246


  76. Bhatta DN, Hiatt RA, Van Loon K, Glantz SA. Exposure to household tobacco smoke and risk of cancer morbidity and mortality: Analysis of data from the Afghanistan Demographic and Health Survey 2015. Preventive medicine 2019. PMID: 30940572


  77. Rubagumya F, Nyagabona SK, Msami KH, Manirakiza A, Longombe AN, Maniragaba T, Chan H, Paciorek A, Zhang L, Balandya E, Germana LH, Mmbaga EJ, Dharsee N, Van Loon K. Attitudes and Barriers to Research Among Oncology Trainees in East Africa. The oncologist 2019. PMID: 30902914


  78. Van Blarigan EL, Chan H, Van Loon K, Kenfield SA, Chan JM, Mitchell E, Zhang L, Paciorek A, Joseph G, Laffan A, Atreya CE, Fukuoka Y, Miaskowski C, Meyerhardt JA, Venook AP. Self-monitoring and reminder text messages to increase physical activity in colorectal cancer survivors (Smart Pace): a pilot randomized controlled trial. BMC cancer 2019. PMID: 30866859


  79. Ng DL, Vuhahula E, Zhang L, Waterhouse EG, White KL, Mushi BP, Nyeriga MS, Philipo GS, Mmbaga EJ, Sheth S, Van Loon K, Lee AY, Balassanian R. Efficacy of an Intensive, Ultrasound-Guided Fine-Needle Aspiration Biopsy Training Workshop in Tanzania. Journal of global oncology 2018. PMID: 30372401


  80. Van Loon K, Mwachiro MM, Abnet CC, Akoko L, Assefa M, Burgert SL, Chasimpha S, Dzamalala C, Fleischer DE, Gopal S, Iyer PG, Kaimila B, Kayamba V, Kelly P, Leon ME, Mathew CG, Menya D, Middleton D, Mlombe Y, Mmbaga BT, Mmbaga E, Mulima G, Murphy G, Mushi B, Mwanga A, Mwasamwaja A, Parker MI, Pritchett N, Schüz J, Topazian MD, White RE, McCormack V, Dawsey SM. The African Esophageal Cancer Consortium: A Call to Action. Journal of global oncology 2018. PMID: 30241229


  81. Bailey JJ, Jordan EJ, Burke C, Ohliger MA, Wang ZJ, Van Loon K, Varma MG, Hope TA. Does Extended PET Acquisition in PET/MRI Rectal Cancer Staging Improve Results? AJR. American journal of roentgenology 2018. PMID: 30106609


  82. Innocenti F, Owzar K, Jiang C, Etheridge AS, Gordân R, Sibley AB, Mulkey F, Niedzwiecki D, Glubb D, Neel N, Talamonti MS, Bentrem DJ, Seiser E, Yeh JJ, Van Loon K, McLeod H, Ratain MJ, Kindler HL, Venook AP, Nakamura Y, Kubo M, Petersen GM, Bamlet WR, McWilliams RR. The vitamin D receptor gene as a determinant of survival in pancreatic cancer patients: Genomic analysis and experimental validation. PloS one 2018. PMID: 30107003


  83. Snyder RA, Hu CY, Cuddy A, Francescatti AB, Schumacher JR, Van Loon K, You YN, Kozower BD, Greenberg CC, Schrag D, Venook A, McKellar D, Winchester DP, Chang GJ. Association Between Intensity of Posttreatment Surveillance Testing and Detection of Recurrence in Patients With Colorectal Cancer. JAMA 2018. PMID: 29800181


  84. Ursem C, Atreya CE, Van Loon K. Emerging treatment options for BRAF-mutant colorectal cancer. Volume 8. Gastrointestinal cancer : targets and therapy 2018. PMID: 29628780


  85. Murphy G, McCormack V, Abedi-Ardekani B, Arnold M, Camargo MC, Dar NA, Dawsey SM, Etemadi A, Fitzgerald RC, Fleischer DE, Freedman ND, Goldstein AM, Gopal S, Hashemian M, Hu N, Hyland PL, Kaimila B, Kamangar F, Malekzadeh R, Mathew CG, Menya D, Mulima G, Mwachiro MM, Mwasamwaja A, Pritchett N, Qiao YL, Ribeiro-Pinto LF, Ricciardone M, Schüz J, Sitas F, Taylor PR, Van Loon K, Wang SM, Wei WQ, Wild CP, Wu C, Abnet CC, Chanock SJ, Brennan P. International cancer seminars: a focus on esophageal squamous cell carcinoma. Annals of oncology : official journal of the European Society for Medical Oncology 2017. PMID: 28911061


  86. Mmbaga EJ, Deardorff KV, Mushi B, Mgisha W, Merritt M, Hiatt RA, Mwaiselage J, Zhang L, Van Loon K. Characteristics of Esophageal Cancer Cases in Tanzania. Journal of global oncology 2017. PMID: 30241222


  87. Mulvey CK, Van Loon K, Bergsland EK, Masharani U, Nakakura EK. Complicated Case Presentation: Management of Pancreatic Neuroendocrine Tumors in Multiple Endocrine Neoplasia Type 1. Pancreas 2017. PMID: 28187108


  88. Atreya CE, Greene C, McWhirter RM, Ikram NS, Allen IE, Van Loon K, Venook AP, Yeh BM, Behr SC. Differential Radiographic Appearance of BRAF V600E-Mutant Metastatic Colorectal Cancer in Patients Matched by Primary Tumor Location. Journal of the National Comprehensive Cancer Network : JNCCN 2016. PMID: 27956538


  89. Fidelman N, Kerlan RK, Hawkins RA, Pampaloni M, Taylor AG, Kohi MP, Kolli KP, Atreya CE, Bergsland EK, Kelley RK, Ko AH, Korn WM, Van Loon K, McWhirter RM, Luan J, Johanson C, Venook AP. Radioembolization with 90Y glass microspheres for the treatment of unresectable metastatic liver disease from chemotherapy-refractory gastrointestinal cancers: final report of a prospective pilot study. Journal of gastrointestinal oncology 2016. PMID: 28078110


  90. Pant S, Martin LK, Geyer S, Wei L, Van Loon K, Sommovilla N, Zalupski M, Iyer R, Fogelman D, Ko AH, Bekaii-Saab T. Treatment-related Hypertension as a Pharmacodynamic Biomarker for the Efficacy of Bevacizumab in Advanced Pancreas Cancer: A Pooled Analysis of 4 Prospective Trials of Gemcitabine-based Therapy With Bevacizumab. American journal of clinical oncology 2016. PMID: 25068471


  91. Zukotynski K, Jadvar H, Hope T, Subramaniam RM, Van Loon K, Varma M, Niederkohr RD. SNMMI Comment on the 2016 Society of Surgical Oncology "Choosing Wisely" Recommendation on the Use of PET/CT in Colorectal Cancer. Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2016. PMID: 27688471


  92. Ursem C, Van Loon K, Venook A. Adjuvant Therapy Trials. Volume 22 of Issue 3. Cancer journal (Sudbury, Mass.) 2016. PMID: 27341598


  93. Papadopoulos KP, Kelley RK, Tolcher AW, Razak AR, Van Loon K, Patnaik A, Bedard PL, Alfaro AA, Beeram M, Adriaens L, Brownstein CM, Lowy I, Kostic A, Trail PA, Gao B, DiCioccio AT, Siu LL. A Phase I First-in-Human Study of Nesvacumab (REGN910), a Fully Human Anti-Angiopoietin-2 (Ang2) Monoclonal Antibody, in Patients with Advanced Solid Tumors. Clinical cancer research : an official journal of the American Association for Cancer Research 2015. PMID: 26490310


  94. Zill OA, Greene C, Sebisanovic D, Siew LM, Leng J, Vu M, Hendifar AE, Wang Z, Atreya CE, Kelley RK, Van Loon K, Ko AH, Tempero MA, Bivona TG, Munster PN, Talasaz A, Collisson EA. Cell-Free DNA Next-Generation Sequencing in Pancreatobiliary Carcinomas. Volume 5 of Issue 10. Cancer discovery 2015. PMID: 26109333


  95. Cheng ML, Zhang L, Borok M, Chokunonga E, Dzamamala C, Korir A, Wabinga HR, Hiatt RA, Parkin DM, Van Loon K. The incidence of oesophageal cancer in Eastern Africa: identification of a new geographic hot spot? Cancer epidemiology 2015. PMID: 25662402


  96. Van Loon K, Zhang L, Keiser J, Carrasco C, Glass K, Ramirez MT, Bobiak S, Nakakura EK, Venook AP, Shah MH, Bergsland EK. Bone metastases and skeletal-related events from neuroendocrine tumors. Endocrine connections 2014. PMID: 25430999


  97. Van Loon K, Owzar K, Jiang C, Kindler HL, Mulcahy MF, Niedzwiecki D, O'Reilly EM, Fuchs C, Innocenti F, Venook AP. 25-Hydroxyvitamin D levels and survival in advanced pancreatic cancer: findings from CALGB 80303 (Alliance). Journal of the National Cancer Institute 2014. PMID: 25099612


  98. Van Loon K, Espinoza AM, Fogelman DR, Wolff RA, Javle MM, Iyer RV, Picozzi VJ, Martin LK, Bekaii-Saab T, Tempero MA, Foster NR, Kim GP, Ko AH. Should combination chemotherapy serve as the backbone in clinical trials of advanced pancreatic cancer? A pooled analysis of phase II trials of gemcitabine-containing doublets plus bevacizumab. Pancreas 2014. PMID: 24622062


  99. Pant S, Martin LK, Geyer S, Wei L, Van Loon K, Sommovilla N, Sommovilla N, Zalupski M, Iyer R, Fogelman D, Ko AH, Bekaii-Saab T. Baseline serum albumin is a predictive biomarker for patients with advanced pancreatic cancer treated with bevacizumab: a pooled analysis of 7 prospective trials of gemcitabine-based therapy with or without bevacizumab. Cancer 2014. PMID: 24633933


  100. Van Loon K, Venook AP. Curable patient with metastatic colorectal cancer: balancing effective therapies and toxicities. Journal of clinical oncology : official journal of the American Society of Clinical Oncology 2014. PMID: 24516031


  101. Van Loon K, Venook AP. Biomarkers in colon cancer: the chasm between expectations and reality. Oncology (Williston Park, N.Y.) 2013. PMID: 24133822


  102. Van Loon K, Atreya CE, Kelley RK, Venook AP. Gene Profiling in Colon Cancer: How to Integrate Profiling into Practice Personalized Medicine in Oncology 2013. PMID:


  103. Van Loon K, Wigler D, Niedzwiecki D, Venook AP, Fuchs C, Blanke C, Saltz L, Goldberg RM, Meyerhardt JA. Comparison of dietary and lifestyle habits among stage III and metastatic colorectal cancer patients: findings from CALGB 89803 and CALGB 80405. Clinical colorectal cancer 2013. PMID: 23317558


  104. Van Loon K, Venook AP. Counterpoint: Adjuvant therapy in stage II colon cancer: pain not justified by the gain. Journal of the National Comprehensive Cancer Network : JNCCN 2012. PMID: 23138166


  105. Van Loon K, Venook AP. Metastatic colorectal cancer: a curable disease. Oncology (Williston Park, N.Y.) 2012. PMID: 22545312


  106. Van Loon K, Gill RM, McMahon P, Chigurupati R, Siddiqi I, Fox L, Damon L, McCalmont TH, Jordan R, Wolf J. 20q- clonality in a case of oral sweet syndrome and myelodysplasia. American journal of clinical pathology 2012. PMID: 22261459


  107. Van Loon K, Venook AP. Adjuvant treatment of colon cancer: what is next? Current opinion in oncology 2011. PMID: 21537178


  108. Ortiz GM, Wellons M, Brancato J, Vo HT, Zinn RL, Clarkson DE, Van Loon K, Bonhoeffer S, Miralles GD, Montefiori D, Bartlett JA, Nixon DF. Structured antiretroviral treatment interruptions in chronically HIV-1-infected subjects. Proceedings of the National Academy of Sciences of the United States of America 2001. PMID: 11687611