Nabeel Khan

ORCID: 0000-0002-5368-7518
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About
Contact & Profiles
Research Areas
  • Inflammatory Bowel Disease
  • Microscopic Colitis
  • Liver Diseases and Immunity
  • Acute Lymphoblastic Leukemia research
  • Herpesvirus Infections and Treatments
  • COVID-19 Clinical Research Studies
  • Cytomegalovirus and herpesvirus research
  • Iron Metabolism and Disorders
  • Eosinophilic Esophagitis
  • Acne and Rosacea Treatments and Effects
  • COVID-19 and healthcare impacts
  • Pregnancy and Medication Impact
  • SARS-CoV-2 and COVID-19 Research
  • Celiac Disease Research and Management
  • Systemic Lupus Erythematosus Research
  • Immunodeficiency and Autoimmune Disorders
  • Long-Term Effects of COVID-19
  • Pharmaceutical studies and practices
  • Vaccine Coverage and Hesitancy
  • Health Systems, Economic Evaluations, Quality of Life
  • Mycobacterium research and diagnosis
  • Erythropoietin and Anemia Treatment
  • Colorectal Cancer Screening and Detection
  • Liver Disease Diagnosis and Treatment
  • Nonmelanoma Skin Cancer Studies

Philadelphia VA Medical Center
2014-2024

University of Pennsylvania
2015-2024

Karachi Medical and Dental College
2014-2024

Brunel University of London
2022-2024

University of Chester
2023

Amity University
2023

Research Network (United States)
2022

Mount Vernon Cancer Centre
2022

Nanoplus (Germany)
2022

Qassim University
2022

Anna Funk Nathan Kuppermann Todd A. Florin Daniel J. Tancredi Jianling Xie and 95 more Kelly Kim Yaron Finkelstein Mark I. Neuman Marina I. Salvadori Adriana Yock‐Corrales Kristen Breslin Lilliam Ambroggio Pradip P. Chaudhari Kelly R. Bergmann Michael Gardiner Jasmine R. Nebhrajani Carmen Campos Fahd A. Ahmad Laura F. Sartori Nidhya Navanandan Nirupama Kannikeswaran Kerry Caperell Claudia R. Morris Santiago Mintegi Iker Gangoiti Vikram Sabhaney Amy C. Plint Terry P. Klassen Usha Avva Nipam Shah Andrew Dixon Maren M. Lunoe Sarah M. Becker Alexander J. Rogers Viviana Pavlicich Stuart R Dalziel Daniel C. Payne Richard Malley Meredith L Borland Andrea K. Morrison Maala Bhatt Pedro Rino Isabel Beneyto Ferré Michelle Eckerle April Kam Shu‐Ling Chong Laura Palumbo Maria Y. Kwok Jonathan C. Cherry Naveen Poonai Muhammad Waseem Norma-Jean Simon Stephen B. Freedman Jessica Gómez‐Vargas Bethany Lerman James Chamberlain Adebola Owolabi Camilla Schanche-Perret Gentil Sofie Ringold Jocy Perez Heidi Vander Velden Tyrus Crawford Steven Schultz Kimberly Ross Kathy Monroe Karly Stillwell Jillian Benedetti Sharon O’Brien Kyle Pimenta Amia Andrade Adam Isacoff Kendra Sikes Nina Gold Kathleen Reichard Maureen Nemetski Pavani Avva Rakesh D. Mistry Shanon Young Marlena Cook V. Gómez Barrena Sandra Castejón-Ramírez María T García Castellanos Emma Patterson A Tisherman Samuel Redjana Carciurmaru Eleanor Fitzpatrick Megan Bonisch Bruce Wright Mithra Sivakumar Patricia Candelaria Vincent Cervantes Shaminy Manoranjithan Nabeel Khan Toni Harbour Usha Sethuraman Priya Spencer Neha Gupta Amira S. Kamboj Gael Muanamputu Guillermo Kohn Loncarica

Little is known about the risk factors for, and of, developing post-COVID-19 conditions (PCCs) among children.To estimate proportion of SARS-CoV-2-positive children with PCCs 90 days after a positive test result, to compare this SARS-CoV-2-negative children, assess associated PCCs.This prospective cohort study, conducted in 36 emergency departments (EDs) 8 countries between March 7, 2020, January 20, 2021, included 1884 who completed 90-day follow-up; 1686 these were frequency matched by...

10.1001/jamanetworkopen.2022.23253 article EN cc-by-nc-nd JAMA Network Open 2022-07-22

Background and Aims Corticosteroids are effective for the short-term treatment of inflammatory bowel disease (IBD). Long-term use, however, is associated with significant adverse effects. To define the: (1) frequency duration corticosteroid (2) escalation to corticosteroid-sparing therapy, (3) rate complications related (4) appropriate bone density measurements (dual energy X-ray absorptiometry [DEXA] scans), (5) factors DEXA scans. Methods Retrospective review Veterans Health Administration...

10.1371/journal.pone.0158017 article EN public-domain PLoS ONE 2016-06-23

Vaccination against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has rapidly expanded; however, clinical trials excluded patients taking immunosuppressive medications such as those with inflammatory bowel disease (IBD). Therefore, we explored real-world effectiveness of 2019 (COVID-19) vaccination on subsequent infection in IBD diverse exposure to medications.This was a retrospective cohort study the Veterans Health Administration diagnosed before December 18, 2020, start...

10.1053/j.gastro.2021.05.044 article EN other-oa Gastroenterology 2021-05-25

The efficacy and safety of vedolizumab, a gut-selective α4β7 integrin antibody, were demonstrated in the GEMINI 1 2 clinical trials adults aged 18–80 years. We investigated vedolizumab patients stratified by age from trials. Safety efficacy, including response, remission, corticosteroid-free at week 6 and/or 52 determined post hoc <35, 35 to <55, ≥55 At baseline, 353, 412, 130 ulcerative colitis (UC) 582, 443, 90 Crohn's disease (CD) ≥55. Of these patients, 56 ≥65 years (UC: 33, CD: 23)....

10.1007/s12325-016-0467-6 article EN cc-by-nc Advances in Therapy 2017-01-09

Objective Our aim was to explore the risk of infection with all classes inflammatory bowel disease (IBD) medications and impact these on course in a nationwide cohort patients IBD. Design This retrospective national study IBD Veterans Affairs Healthcare System. We categorised medication use immediately prior COVID-19 pandemic used survival analysis methods associations SARS-CoV-2 infection, as well combined secondary outcome hospitalisation or COVID-19-related mortality. Results The...

10.1136/gutjnl-2021-324356 article EN cc-by-nc Gut 2021-03-22

There are limited data on the risk of non-melanoma skin cancer (NMSC) and melanoma (MSC) among thiopurine-treated patients with ulcerative colitis (UC). Our aim was to investigate while on, by cumulative years, after stopping thiopurine therapy.Nationwide were obtained from Veterans Affairs (VA) health-care system during 2001-2011. We performed a retrospective cohort study evaluating UC. Cox regression used association between thiopurines use time NMSC adjusting for demographics, ultraviolet...

10.1038/ajg.2014.298 article EN The American Journal of Gastroenterology 2014-09-23

The recent outbreak of the novel coronavirus disease 2019 (COVID-19) has become a pandemic and is threatening global health.1Wang C. et al.Lancet. 2020; 395: 470-473Abstract Full Text PDF PubMed Scopus (5092) Google Scholar highest number COVID-19 confirmed cases were reported in United States, with 1.47 million 89,272 deaths as May 19, 2020.2World Health Organization. Available at:...

10.1053/j.gastro.2020.05.065 article EN other-oa Gastroenterology 2020-05-29

To evaluate the role of albumin at time ulcerative colitis (UC) diagnosis in predicting clinical course disease.

10.3748/wjg.v23.i45.8008 article EN cc-by-nc World Journal of Gastroenterology 2017-12-04

The clinic course of SARS-CoV-2 among patients with inflammatory bowel disease (IBD) has been extensively studied. However, there is a paucity data on whether IBD have an increased risk developing compared without IBD.We conducted nationwide retrospective cohort study in the US Veterans' Affairs healthcare system from January 1, 2020, to June 30, 2020. We matched each patient 2 age, sex, race, location, and comorbidities. outcome interest was development SARS-CoV-2.Among 38,378 67,433 IBD,...

10.14309/ajg.0000000000001012 article EN The American Journal of Gastroenterology 2020-10-19

Abstract Background Inflammatory bowel disease (IBD) treatment in the elderly is challenging part because of increased risk infections. The aim our study was to determine absolute and relative infections among IBD patient population identify factors affecting overall population. Methods A retrospective patients with initiating corticosteroids, immunomodulators (IM), or biologic therapy (January 2010–December 2014) conducted using Truven Market Scan database. IM exposure were assessed a...

10.1093/ibd/izz065 article EN public-domain Inflammatory Bowel Diseases 2019-04-13

Summary Background Adherence is a major factor in determining disease activity ulcerative colitis ( UC ). There are limited data on long‐term nationwide adherence levels among patients with . Aim To evaluate the to oral mesalazine (mesalamine) Veterans Affairs VA ) healthcare system, determine impact of non‐adherence risk flares, and different pharmacy data‐based indicators. Methods Nationwide were obtained from for period 2001–2011. who started maintenance during inclusion included. Level...

10.1111/apt.12013 article EN Alimentary Pharmacology & Therapeutics 2012-08-09

Management of elderly inflammatory bowel disease (IBD) patients (≥ 65 years age) is complicated due to many factors, including a higher risk cancer, which may impact therapeutic decisions.The aim this study was determine the cancer among IBD compared with younger patients. Additionally, absolute malignancy and factors contributing it were evaluated, patterns assessed.This retrospective cohort extracted data from Truven Health Analytics MarketScan® database. Among adult who free before...

10.1007/s40266-017-0498-y article EN cc-by-nc Drugs & Aging 2017-11-01

Summary Background There are limited data regarding clinical outcomes in ulcerative colitis ( UC ) patients who require early corticosteroids CS use. Aim To evaluate the rate of utilisation (within 30 days diagnosis) as a predictive marker for long‐term outcomes, colectomy and dependency, population‐based cohort incident cases. Methods Nationwide were obtained from Veterans Affairs VA health care system period 2001–2011. Incident cases identified. A retrospective design time‐to‐event...

10.1111/apt.12834 article EN Alimentary Pharmacology & Therapeutics 2014-06-25

There are limited data about the long-term follow-up of patients with ulcerative colitis (UC) maintained on high versus low doses mesalamine. We evaluated best average daily dose that would keep disease in remission. Nationwide were obtained from Veterans Affairs health care system for period 2001 to 2011. Those who started mesalamine maintenance during this included. Average and level adherence assessed between first dispense date flare defined as filling 40 mg/day or more oral prednisone...

10.1097/mib.0b013e318280b1b8 article EN Inflammatory Bowel Diseases 2013-03-22

Abstract Background The elderly inflammatory bowel disease (IBD) population has historically been under-represented in clinical trials, and data on the efficacy of biologic medications IBD patients are generally lacking. Our study aims to evaluate vedolizumab (VDZ) among compare it with younger a nationwide population-based cohort patients. Methods We conducted retrospective within US national Veterans Affairs Healthcare System (VAHS). Patients were stratified into 2 groups based age at time...

10.1093/ibd/izab163 article EN public-domain Inflammatory Bowel Diseases 2021-07-10

The standard approach for the surgical management of colorectal cancer (CRC) in setting ulcerative colitis (UC) involves total proctocolectomy (TPC). However, some patients also undergo a partial resection (PR). This may be an attractive option older with high risk surgery. aim this study was to compare metachronous after PR or TPC CRC UC.This retrospective cohort conducted through Nationwide Veterans Affairs Healthcare System (VA). Patients who had UC and underwent were followed from time...

10.1111/codi.13721 article EN Colorectal Disease 2017-05-12
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