Education and Training
MD - The University of Chicago, Chicago, IL
Pediatrics - Boston Children's Hospital, Boston, MA
Pediatrics - Boston Children's Hospital, Boston, MA
Immunology/Allergy - Boston Children's Hospital, Boston, MA
Pediatric Pulmonology - St. Christopher's Hospital for Children, Philadelphia, PA
Allergy and Immunology – American Board of Allergy and ImmunologyPediatric Pulmonology – American Board of PediatricsPediatrics – American Board of Pediatrics
MBA, Medical Management - The University of Rochester, Simon School of Business Degree, Rochester, NY
Titles and Academic Titles
Director, Cystic Fibrosis Center
Richard B. Johnston, Jr. Endowed Chair in Pediatrics
Professor of Pediatrics, Perelman School of Medicine at the University of Pennsylvania
Departments and Services
Original Research Articles
Bauer SE, Wesson M, Oles SK, Ren CL†. Outcomes of Repeat Sweat Testing in Cystic Fibrosis Newborn Screen Positive Infants. Pediatr Pulmonol 2021.
Sanders DB, Slaven JE, Maguiness K, Chmiel JF, Ren CL. Early Life Height Attainment in Cystic Fibrosis Is Associated with Pulmonary Function at Age 6 Years. Ann Am Thorac Soc 2021.
Nichols DP, Odem-Davis K, Cogen JD, Goss CH, Ren CL, Skalland M, Somayaji R, Heltshe SL. Pulmonary Outcomes Associated with Long-Term Azithromycin Therapy in Cystic Fibrosis. American journal of respiratory and critical care medicine. 2020; 201: 430-437.
Holland KJ, Slaven JE, Ren CL, Sanders DB, Bennett WE, Jr. A Retrospective Cohort Study of Growth in the First 2 Years of Life in Preterm Infants With Cystic Fibrosis. J Pediatr Gastroenterol Nutr. 2020;70(1):115-20.
Voynow JA, Fisher K, Sunday ME, Cotten CM, Hamvas A, Hendricks-Munoz KD, Poindexter BB, Pryhuber GS, Ren CL, Ryan RM, Sharp JK, Young SP, Zhang H, Greenberg RG, Herring AH, Davis SD. Urine gastrin-releasing peptide in the first week correlates with bronchopulmonary dysplasia and post-prematurity respiratory disease. Pediatric pulmonology 2020; 55: 899-908.
Dylag AM, Kopin HG, O'Reilly MA, Wang H, Davis SD, Ren CL, Pryhuber GS. Early Neonatal Oxygen Exposure Predicts Pulmonary Morbidity and Functional Deficits at 1 Year. The Journal of pediatrics 2020; 223: 20-28 e22.
Tumin D, Crowley EM, Li SS, Wooten W, Ren CL, Hayes D. Patterns of Health Insurance Coverage and Lung Disease Progression in Adolescents and Young Adults with Cystic Fibrosis. Ann Amer Thor Soc 2020: Online ahead of print.
McColley SA, Elbert A, Wu R, Ren CL, Sontag MK, LeGrys VA. Quantity not sufficient rates and delays in sweat testing in US infants with cystic fibrosis. Pediatr Pulmonol 2020; Online ahead of print.
BJ Carroll, N Antos, A Fink, CL Ren†. LONG-TERM CHILDHOOD OUTCOMES OF CFTR-RELATED METABOLIC SYNDROME. Pediatr Pulmonol 2020; 55: S94.
CL Ren, MK Sontag, R Wu, A Elbert, N Fisher, SA McColley. VARIATION BY STATE AND ALGORITHM IN CRMS PREVALENCE IN THE US CF REGISTRY. Pediatr Pulmonol 2020; 55: S101.
MS Schechter J Ostrenga, CL Ren, A Fink, DB Sanders, WJ Morgan. IMPACT OF TREATING SMALL AND LARGE DECLINES IN LUNG FUNCTION IN CYSTIC FIBROSIS. Pediatr Pulmonol 2020; 55: S98.
SA McColley, A Elbert, PM Farrell, N Fisher, CL Ren, MK Sontag, R Wu, SL Martiniano. EARLIER CONTACT WITH A CF CENTER IS ASSOCIATED WITH BETTER NUTRITIONAL OUTCOMES IN INFANTS WITH CF. Pediatr Pulmonol 2020; 55: S102.
DB Sanders, R Wu, A Elbert, KM Petren, CL Ren. CHARACTERISTICS OF PATIENTS SEEN IN PERSON DURING COVID-19. Pediatr Pulmonol 2020; 55: S103.
JL Saunders JE Slaven, CL Ren, DB Sanders. MECONIUM ILEUS IS NOT ASSOCIATED WITH WORSE OUTCOMES IN THE US. Pediatr Pulmonol 2020; 55: S104.
N Fisher, L Balmert, A Elbert, PM Farrell, SL Martiniano, CL Ren, K Rychlik, MK Sontag, R Wu, SA McColley. BLACK RACE IS INDEPENDENTLY ASSOCIATED WITH LATER AGE AT INITIAL CF CENTER EVALUATION AND DECREASED 1-YEAR WEIGHT FOR AGE Z-SCORE. Pediatr Pulmonol 2020; 55: S111.
SL Martiniano, A Elbert, PM Farrell, N Fisher, CL Ren, MK Sontag, R Wu, SA McColley. IMPROVEMENT IN CF OUTCOMES SINCE NEWBORN SCREENING IMPLEMENTATION IN THE UNITED STATES. Pediatr Pulmonol 2020; 55: S112.
Bauer SE, Lai, H.J.; Slaven, J.E.; Ren, C.L. † ZINC STATUS AND GROWTH IN CYSTIC FIBROSIS IN THE FIRST COHORT. Pediatr Pulmonol 2020; 55: S125.
Madde AO, Okeniewski, W.; Sanders, D.B.; Ren, C.L.; Weiner, D.; Forno, E. NUTRITIONAL STATUS AND LUNG FUNCTION IN CHILDREN AND ADOLESCENTS WITH PANCREATICSUFFICIENT CYSTIC FIBROSIS. Pediatr Pulmonol 2020; 55: S134.
Jones KM, Maguiness, K.; O’Callaghan, M.; Ren, C.L. † USE OF HOME SCALES TO TRACK NUTRITIONAL OUTCOMES IN INFANTS WITH CF DURING THE COVID-19 PANDEMIC. Pediatr Pulmonol 2020; 55: S136.
Newbill ER, Ren, C.L. IMPACT OF COVID-19 ON TELEHEALTH VISITS AT A LARGE CF CENTER. Pediatr Pulmonol 2020; 55: S229.
McAtee KS, Sanders, D.B.; Ren, C.L.; Pettit, R.S. PEDIATRIC CYSTIC FIBROSIS OUTPATIENT ANTIBIOTICS AND ANTIBIOTIC SUSCEPTIBILITY. Pediatr Pulmonol 2020; 55: S247.
Brown CD, Ren, C.L.; Vollmar, A.; Stewart, C.; Loeffler, D.; Sabadosa, K.; Fink, A. CF LEARNING NETWORK REAL-WORLD RESEARCH: A PILOT POINT-OF-CARE STUDY. Pediatr Pulmonol 2020; 55: S284.
Farrell PM; Lai, H.J.; Bach, T.; Sander, D.; Ren, C.L.; Nagle, S.; Brody, A. EXCLUSIVE BREASTFEEDING INFLUENCES CHEST CT SCORES AND LUNG CLEARANCE INDEX AT 5-6 YEARS OF AGE: PRELIMINARY FINDINGS FROM THE FIRST COHORT. Pediatr Pulmonol 2020; 55: S294.
Prucka SN, Neidlinger, T.; Thompson, M.D.; Satterly, R; Lah, M.; Ren, C.L. A MULTIPRONGED APPROACH TO IMPROVING GENETIC COUNSELING IN INFANTS WITH A POSITIVE CF NEWBORN SCREEN. Pediatr Pulmonol 2020; 55: S307.
CL Ren and K Southern. 2017. Managing infants with an unclear diagnosis after newborn screening. In K DeBoeck and K Southern, eds. Cystic Fibrosis: The Early Years.
Rosenfeld, M., M. K. Sontag and C. L. Ren (2016). "Cystic Fibrosis Diagnosis and Newborn Screening." Pediatr Clin North Am 63(4): 599-615.
I Cristea, CL Ren, and SD Davis. 2016. Diagnostic Modalities: Pulmonary Function Testing and Imaging. In Sequale of Prematurity. M Muhlebach and AM Hibbs, editors. London UK. Springer
A Bandyopadhyay and CL Ren†. 2016. Lung Development. In A Bush, ed. Rudoph’s Pediatrics.
Posters and Presentations
Ren CL. “FEV1 Indicated Exacerbation Signal iLab”. Invited speaker, Scientific Symposium, 2021 North American Cystic Fibrosis Conference (Virtual). November 2021.
Ren CL. “Physician Grand Rounds”. Moderator. 2021 North American Cystic Fibrosis Conference (Virtual). November 2021.
Ren CL. “Diagnosis and Management of CF Related Syndromes”. Faculty discussant. CFF Leadership and Education for Advanced Practice Practitioners (LEAPP). July 2021.
Ren CL. “Outcomes of Repeat Sweat Testing in CF NBS Positive Infants”. Invited speaker. European Cystic Fibrosis Society Neonatal Screening Working Group Meeting (Virtual). June 2021.
Ren CL. “ATS Diversity Forum”. Moderator. 2021 ATS International Conference (virtual). May 2021.
Ren CL. “ATS Women’s Forum”. Moderator. 2021 ATS International Conference (virtual). May 2021.
Ren CL. “Cystic Fibrosis Airway Infections”. Division of Pediatric Infectious Diseases Conference, Riley Hospital for Children, Indianapolis, IN. March 2021.
Ren CL.“Antibiotic Stewardship in Cystic Fibrosis”. Pediatric Antibiotic Stewardship Committee, Riley Hospital for Children, Indianapolis, IN. January 2021.
Ren CL. “ATS Diversity Forum”. Moderator. 2020 ATS International Conference (virtual). December 2020.
Ren CL. “ATS Women’s Forum”. Moderator. 2020 ATS International Conference (virtual). December 2020.
Ren CL. “Discussion of CFTR Cases”. Co-moderator. Special Session at the 2020 North American Cystic Fibrosis Conference (virtual). October 2020.
Ren CL.“Use of Telehealth CF Visits During the COVID-19 Pandemic”. Northern New England Cystic Fibrosis Consortium Meeting (Virtual). August 2020.
Ren CL. “Multiple Breath Washout”. Faculty speaker. ATS Fellows in Training Course (virtual). July 2020.
Ren CL. “What Does Registry Data Tell Us About CRMS/CFSPID in the USA?”. Invited speaker. European Cystic Fibrosis Society Neonatal Screening Working Group Meeting, Lyon, France (Cancelled due to COVID-19). June 2020.
Ren CL. “Update on CRMS”. Invited speaker. Scientific Symposium at the 2019 North American Cystic Fibrosis Conference. Nashville, TN. November 2019.
Ren CL. “Use of Infant Pulmonary Function Testing in CF Clinical Care and Research”. Invited speaker. Scientific Symposium at the 2019 North American Cystic Fibrosis Conference. Nashville, TN. October 2019.
Ren CL. “Developing and Maintaining a Cystic Fibrosis Care Center”. Invited speaker. Mexican Pediatric Pneumology Conference. Mexico City, MX. August 2019.
Ren CL. “Physiologic Outcomes of ELGANS at 1 Year of Age”. Invited speaker. Scientific symposium at the 2019 American Thoracic Society International Conference. Dallas, TX. May 2019.
Ren CL. “Respiratory Outcomes of Prematurity”. Faculty speaker. Post-Graduate Course at the 2019 American Thoracic Society International Conference. Dallas, TX. May 2019.
Ren CL. “Perspectives on Cystic Fibrosis Newborn Screening”. Invited speaker. Brazilian Cystic Fibrosis Congress, Campinas, Brazil. May 2019.
Ren CL. “How to Detect Early Lung Damage in Cystic Fibrosis”. Invited speaker. Brazilian Cystic Fibrosis Congress, Campinas, Brazil. May 2019.
Awards and Honors
2016-2021, Top Doctors Indianapolis Monthly
2014, URMC Board Excellence Award (CF Center Team)
2013, Ruth Lawrence Academic Faculty Service Award in Clinical Services
2013, Cystic Fibrosis Foundation Quality Care Award
2011, Consumers' Research Council of America’s Top Pediatricians
2008, Marquis’ Who’s Who
2000-present, Castle Connolly Top Doctor
2008-2011, George Washington Goler Professor of Pediatrics, University of Rochester
2008, Cystic Fibrosis Foundation Quality Care Award
2004, AAMC Humanism in Medicine Nominee
1988, Award for Outstanding Teaching, Class of 1999, State University of New York at Stony Brook
1997, Resident Teaching Award, Department of Pediatrics, State University of New York at Stony Brook
1992, Marion Merrill Dow Scholar in Allergy Award
1992, Children's Hospital Farley Fund Research Award
1986, American Liver Foundation Student Research Fellowship
1982, Associated Western Universities Student Research Internship
Editorial and Academic Positions
2018-present, Associate Editor, Pediatric Pulmonology
Ad hoc reviewer
Journal of Cystic Fibrosis (cited in 2019 as a high volume reviewer)
American Journal of Respiratory and Critical Care Medicine
Annals of the American Thoracic Society
Annals of Allergy, Asthma, and Immunology
Journal of Pediatrics
Leadership and Memberships
2019, American Thoracic Society Fellow
2009-present, Society for Pediatric Research
1999, Fellow of the American College of Chest Physicians
1994-present, American College of Chest Physicians
1994-present, American Thoracic Society
1992-present, American Academy of Allergy & Immunology
1990-present, American Academy of Pediatrics
1987, Alpha Omega Alpha
1983, Phi Beta Kappa
Patient Experience Ratings
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