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Liver injury during durvalumab-based immunotherapy is associated with poorer patient survival: A retrospective analysis

Swanson, Linnea A., Kassab, Ihab, Tsung, Irene, Schneider, Bryan J., Fontana, Robert J.·2022·Frontiers in Oncology

Abstract

Background: Durvalumab is approved for the treatment of lung cancer, advanced biliary tract cancers, and is also being evaluated in many other solid organ tumors. The aim of our study is to define the incidence, etiology, and outcomes of liver injury in consecutive patients receiving durvalumab-based immunotherapy. Patients and methods: Durvalumab treated patients between 1/2016 – 7/2020 were identified from the electronic medical record. Liver injury was defined as serum AST or ALT ≥ 5x upper limit of normal (ULN), ALP ≥ 2x ULN, bilirubin ≥ 2.5 mg/dl, or INR ≥ 1.5. Potential drug induced liver injury (DILI) cases were adjudicated using expert opinion scoring and confirmed with Roussel Uclaf Causality Assessment Method (RUCAM). Results: Amongst 112 patients, 58 (52%) had non-small cell lung cancer, the median age was 65 years, and 60% were male. The 21 (19%) liver injury patients were significantly more likely to harbor hepatic metastases (52% vs 17%, p=<0.001), experience tumor progression (67% vs 32%, p=0.01) or die (48% vs 11%, p<0.001) during follow-up compared to the 91 without liver injury. Using multivariate regression analysis, the development of liver injury during treatment as well as baseline hepatic metastases were independently associated with mortality during follow-up. Six of the 21 (29%) liver injury cases were adjudicated as probable DILI with four attributed to durvalumab and two due to other drugs (paclitaxel, pembrolizumab). Durvalumab was permanently discontinued in two DILI patients, three received corticosteroids, and one was successfully rechallenged. Only one patient with DILI developed jaundice, and none required hospitalization. Liver biochemistries normalized in all 6 DILI cases, while they only normalized in 27% of the 15 non-DILI cases (p=0.002). The 6 DILI patients also had a trend towards improved survival compared to those with other causes of liver injury Conclusion: Liver injury was observed in 19% of durvalumab-treated patients and is associated with a greater likelihood of tumor progression and death during follow-up. The four durvalumab DILI cases were mild and self-limited, highlighting the importance of causality assessment to determine the cause of liver injury in oncology patients receiving immunotherapy.

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Registry

Crossref · 10.3389/fonc.2022.984940

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Figures

Figure 1 Patient population. 21 of the 112 (18.7%) patients receiving durvalumab based ICI therapy met lab criteria for liver injury while the remaining 91 (81.3%) did not. Six patients with liver injury were adjudicated as being bonafide DILI with high causality and RUCAM scores while 15 cases of liver injury were adjudicated to be due to various non-DILI causes. DILI, drug induced liver injury.
Figure 1 Patient population. 21 of the 112 (18.7%) patients receiving durvalumab based ICI therapy met lab criteria for liver injury while the remaining 91 (81.3%) did not. Six patients with liver injury were adjudicated as being bonafide DILI with high causality and RUCAM scores while 15 cases of liver injury were adjudicated to be due to various non-DILI causes. DILI, drug induced liver injury.CC BY · PubMed Central
Figure 2 Survival of patients with and without liver injury after starting durvalumab based immunotherapy. The actuarial patient survival of the 21 patients who developed liver injury was significantly lower than those without liver injury (p = < 0.001 Kaplan‐Meier statistics).
Figure 2 Survival of patients with and without liver injury after starting durvalumab based immunotherapy. The actuarial patient survival of the 21 patients who developed liver injury was significantly lower than those without liver injury (p = < 0.001 Kaplan‐Meier statistics).CC BY · PubMed Central
Figure 3 Etiology of liver injury in 15 non-DILI liver cases of the 15 patients with a causality score of 4-5 indicating possible/unlikely DILI, 7 (47%) had liver injury attributed to the presence of liver metastases and 3 (20%) due to non-malignant biliary obstruction. Other causes in 5 (33%) included Gilbert’s (1), bone metastases (1), lung abscess (1) and unknown causes (2). DILI, drug induced liver injury.
Figure 3 Etiology of liver injury in 15 non-DILI liver cases of the 15 patients with a causality score of 4-5 indicating possible/unlikely DILI, 7 (47%) had liver injury attributed to the presence of liver metastases and 3 (20%) due to non-malignant biliary obstruction. Other causes in 5 (33%) included Gilbert’s (1), bone metastases (1), lung abscess (1) and unknown causes (2). DILI, drug induced liver injury.CC BY · PubMed Central

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Research works printed but not linked: 2

  1. Kemp, 2022, Imfinzi plus chemotherapy approved in the US as the first immunotherapy regimen for patients with advanced biliary tract cancer
  2. 2021, IMFINZI, 1

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Metadata

Authors
Swanson, L. A., Kassab, I., Tsung, I., Schneider, B. J., & Fontana, R. J.
Venue
Frontiers in Oncology
Published
2022-10-24
Volume
12
ISSN
2234-943X
Cited by
23
References
26

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CoChat. (2026). Citation check: Liver injury during durvalumab-based immunotherapy is associated with poorer patient survival: A retrospective analysis. https://app.cochat.ai/papers/10.3389/fonc.2022.984940
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Swanson, L. A., Kassab, I., Tsung, I., Schneider, B. J., & Fontana, R. J. (2022). Liver injury during durvalumab-based immunotherapy is associated with poorer patient survival: A retrospective analysis. Frontiers in Oncology. https://doi.org/10.3389/fonc.2022.984940

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