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Assessing Risk Factors for Development of Immune-Mediated Diarrhea and Colitis During Immune Checkpoint-Inhibitor Therapy: A Real-World Data Analysis
Assessing Risk Factors for Development of Immune-Mediated Diarrhea and Colitis During Immune Checkpoint-Inhibitor Therapy: A Real-World Data Analysis
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103037
- ISBN
- 9798293832576
- DDC
- 610.73
- 서명/저자
- Assessing Risk Factors for Development of Immune-Mediated Diarrhea and Colitis During Immune Checkpoint-Inhibitor Therapy: A Real-World Data Analysis
- 발행사항
- [Sl] : The University of Utah, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 140 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-03, Section: B.
- 주기사항
- Advisor: Mooney, B. Kathleen.
- 학위논문주기
- Thesis (D.Phil.)--The University of Utah, 2025.
- 초록/해제
- 요약Immune-mediated diarrhea and colitis (IMDC) is a common immune-related adverse event (irAE) among patients receiving immune checkpoint inhibitors (ICIs), significantly affecting quality of life and treatment outcomes. However, its risk factors remain poorly understood, and large cohort studies defining a comprehensive risk phenotype are lacking. This dissertation investigated IMDC risk factors using three distinct approaches: (1) developing and testing a clinically grounded algorithm for identifying irAEs in structured real-world data, (2) applying the algorithm to identify key IMDC predictors, and (3) reviewing unstructured electronic health record (EHR) data to enhance the granularity of IMDC risk phenotype and assess real-world IMDC management and its alignment with clinical guidelines.Among 14,659 patients, 576 (3.93%) had moderate-severe irAEs, including 58 (0.40%) with IMDC. Compared to controls without irAEs, IMDC cases were more likely to be older ( 80 years, OR = 18.10, 95% CI = 2.11-155.47, p = 0.008) and obese (OR = 4.80, 95% CI = 1.29-17.93, p = 0.019). Notably, 62.07% and 55.17% of cases but only 1.48% and 2.96% of controls had received pain agents (OR = 57.90, 95% CI = 8.79-381.28, p 0.001) and anti-infective medications (OR = 415.32, 95% CI = 20.45-8434.61, p 0.001), yielding wide confidence intervals and inflated odds ratios, likely reflecting confounding or systematic bias in medication documentation.EHR review revealed significant variability in IMDC diagnosis and management, with Emergency Department practitioners adhering more closely to clinical guidelines than outpatient oncology clinicians. Seven of 17 patients with IMDC delayed seeking care for over a week, and 41.18% had concurrent irAEs.These findings suggest older, obese patients may be at increased IMDC risk, while medication-related associations warrant cautious interpretation and further investigation. The study underscores the need for proactive risk-mitigation strategies, including patient education and close monitoring. Future research incorporating diagnostic markers, prospective study design, and larger cohorts can refine IMDC risk phenotype and further explore deviations from clinical guidelines for timely diagnosis and management of IMDC.
- 일반주제명
- Nursing
- 일반주제명
- Oncology
- 일반주제명
- Immunology
- 키워드
- Risk phenotype
- 기타저자
- The University of Utah Nursing
- 기본자료저록
- Dissertations Abstracts International. 87-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798293832576
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■0820 ▼a610.73
■1001 ▼aAlekhina, Natalya.
■24510▼aAssessing Risk Factors for Development of Immune-Mediated Diarrhea and Colitis During Immune Checkpoint-Inhibitor Therapy: A Real-World Data Analysis
■260 ▼a[Sl]▼bThe University of Utah▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a140 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-03, Section: B.
■500 ▼aAdvisor: Mooney, B. Kathleen.
■5021 ▼aThesis (D.Phil.)--The University of Utah, 2025.
■520 ▼aImmune-mediated diarrhea and colitis (IMDC) is a common immune-related adverse event (irAE) among patients receiving immune checkpoint inhibitors (ICIs), significantly affecting quality of life and treatment outcomes. However, its risk factors remain poorly understood, and large cohort studies defining a comprehensive risk phenotype are lacking. This dissertation investigated IMDC risk factors using three distinct approaches: (1) developing and testing a clinically grounded algorithm for identifying irAEs in structured real-world data, (2) applying the algorithm to identify key IMDC predictors, and (3) reviewing unstructured electronic health record (EHR) data to enhance the granularity of IMDC risk phenotype and assess real-world IMDC management and its alignment with clinical guidelines.Among 14,659 patients, 576 (3.93%) had moderate-severe irAEs, including 58 (0.40%) with IMDC. Compared to controls without irAEs, IMDC cases were more likely to be older ( 80 years, OR = 18.10, 95% CI = 2.11-155.47, p = 0.008) and obese (OR = 4.80, 95% CI = 1.29-17.93, p = 0.019). Notably, 62.07% and 55.17% of cases but only 1.48% and 2.96% of controls had received pain agents (OR = 57.90, 95% CI = 8.79-381.28, p 0.001) and anti-infective medications (OR = 415.32, 95% CI = 20.45-8434.61, p 0.001), yielding wide confidence intervals and inflated odds ratios, likely reflecting confounding or systematic bias in medication documentation.EHR review revealed significant variability in IMDC diagnosis and management, with Emergency Department practitioners adhering more closely to clinical guidelines than outpatient oncology clinicians. Seven of 17 patients with IMDC delayed seeking care for over a week, and 41.18% had concurrent irAEs.These findings suggest older, obese patients may be at increased IMDC risk, while medication-related associations warrant cautious interpretation and further investigation. The study underscores the need for proactive risk-mitigation strategies, including patient education and close monitoring. Future research incorporating diagnostic markers, prospective study design, and larger cohorts can refine IMDC risk phenotype and further explore deviations from clinical guidelines for timely diagnosis and management of IMDC.
■590 ▼aSchool code: 0240.
■650 4▼aNursing
■650 4▼aOncology
■650 4▼aImmunology
■653 ▼aImmune-mediated diarrhea and colitis
■653 ▼aImmune-related adverse events
■653 ▼aReal-world data analysis
■653 ▼aRisk phenotype
■690 ▼a0569
■690 ▼a0992
■690 ▼a0982
■71020▼aThe University of Utah▼bNursing.
■7730 ▼tDissertations Abstracts International▼g87-03B.
■790 ▼a0240
■791 ▼aD.Phil.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17356801▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


