McLeod L, Ervin C, Fehnel SE, Eremenco S, Carson RT, Hanlon J, Coons SJ. Psychometric evaluation of the diary for irritable bowel syndrome symptoms-constipation in a prospective observational study. Value Health. 2024 Feb 2. doi: 10.1016/j.jval.2024.01.013
Ervin C, Norcross L, Mallya UG, Fehnel S, Mittleman RS, Webster M, Haqq AM, Haws RM. Interview-based patient- and caregiver-reported experiences of hunger and improved quality of life with setmelanotide treatment in bardet-biedl syndrome. Adv Ther. 2023 May;40(5):2394-411. doi: 10.1007/s12325-023-02443-y
Ervin CM, Whalley D, von Huth Smith L, Crawford R, Dine J, Fehnel SE. Development of the impact of weight on daily activities questionnaire: a patient-reported outcome measure. Clin Obes. 2020 Dec;10(6):e12387. doi: 10.1111/cob.12387
Kolotkin RL, Williams VSL, Ervin CM, Williams N, Meincke HH, Qin S, von Huth Smith L, Fehnel SE. Validation of a new measure of quality of life in obesity trials: impact of weight on quality of life-lite clinical trials version. Clin Obes. 2019 Jun;9(3):e12310. doi: 10.1111/cob.12310
Kolotkin RL, Williams V, Ervin CM, Williams N, Meincke HH, Qin S, von Huth Smith L, Fehnel SE. Validation of a new measure of quality of life in obesity trials: IWQOL-Lite Clinical Trials Version. Poster presented at the 2018 Obesity Week Conference; November 13, 2018. Nashville, TN. doi: 10.1111/cob.12310
Fehnel S, Ervin C, McLeod L, Carson RT, Reasner D, Hanlon J, Eremenco S, Coons SJ, PRO Consortium’s Irritable Bowel Syndrome Working Group. Psychometric evaluation of the diary for irritable bowel syndrome symptoms-constipation (DIBSS-C). Poster presented at the 2018 ISPOR 21st Annual European Congress; November 13, 2018. Barcelona, Spain.
DiBenedetti DB, Brown TM, DeMuro CJ, Ervin C, Lewis SA, Fehnel SE. Conducting patient interviews within a clinical trial setting. RTI Press. 2018 Aug. doi: 10.3768/rtipress.2018.op.0054.1808
Hanlon J, Ervin C, McLeod L, Butler A, Carson R, Coons S, Fehnel S, Kovacs S. Case study: the Diary of Irritable Bowel Syndrome Symptoms (DIBSS). Presented at the Ninth Annual PRO Consortium Workshop; April 25, 2018. Silver Spring, MD.
Ervin CM, Reasner DS, Hanlon JT, Fehnel SE. Exploring the diabetic gastroparesis patient experience: patient exit interviews. Adv Ther. 2017 Dec;34(12):2680-92. doi: 10.1007/s12325-017-0632-6
Kolotkin RL, Ervin CM, Meincke HH, Hojbjerre L, Fehnel SE. Development of a clinical trials version of the Impact of Weight on Quality of Life–Lite questionnaire (IWQOL-Lite Clinical Trials Version): results from two qualitative studies. Clin Obes. 2017 Oct;7(5):290-9. doi: 10.1111/cob.12197
Fehnel SE, Ervin CM, Carson RT, Rigoni G, Lackner JM, Coons SJ. Development of the diary for irritable bowel syndrome symptoms to assess treatment benefit in clinical trials: foundational qualitative research. Value Health. 2017 Apr;20(4):618-26.
Ervin CM, Fehnel SE, Baird MJ, Carson RT, Johnston JM, Shiff SJ, Kurtz CB, Mangel AW. Assessment of treatment response in chronic constipation clinical trials. Clin Exp Gastroenterol. 2014 Jun 3;7:191-8. doi: 10.2147/CEG.S58321. eCollection 2014
Baird MJ, Carson RT, Ervin CM, Chang L, Spiegel B, Norton NJ, Lackner J, Lasch K, Fehnel SE. Qualitative assessment of symptom experience in patients with irritable bowel syndrome for the development of patient reported outcome instruments. Poster presented at the 2013 Digestive Disease Week; May 2013.
Mangel AW, Wang J, Sherrill B, Gnanasakthy A, Ervin C, Fehnel SE. Urgency as an endpoint in irritable bowel syndrome. Gastroenterology Research. 2011 Feb 1;4(1):9-12.
Fehnel SE, Manjunath R, Ervin CM, French JA, Vanlandingham K, Sweeney CT. Developing a functional status diary for epilepsy. Poster presented at the 64th Annual Meeting of the American Epilepsy Society; December 1, 2010.
Fehnel S, Ervin CM, Lewis B, Carson RT, Johnston JM. Identifying endpoints for irritable bowel syndrome (IBS) clinical trials: incorporating the patient's voice. Poster presented at the 2010 ISPOR 13th Annual European Congress; November 15, 2010. [abstract] Value Health. 2010 Nov; 13(7):A372.
Fehnel SE, Ervin CM, Shiff SJ, Johnston JM, Kurtz CB, Carson RT. Assessing treatment response in chronic constipation clinical trials: concepts elicited through qualitative interviews with patients. Poster presented at the 2010 Digestive Disease Week; May 1, 2010.
Ervin CM, Fehnel S, Carson R, Kurtz C, Shiff S, Johnston J. Selecting chronic constipation (CC) clinical trial endpoints: incorporating the patient's voice. Poster presented at the 2010 ISPOR 15th Annual International Meeting; May 28, 2010. [abstract] Value Health. 2010 May; 13(3):A74.