Durvalumab, the programmed death-ligand 1 (PD-L1) targeting monoclonal antibody, has revolutionized the treatment of numerous cancers, such as Non-Small Cell Lung Cancer (NSCLC). Despite producing remarkable clinical advantages, immune-related toxicities, i.e., pneumonitis and colitis, are being closely monitored and must be treated on an individual basis. The safety profile, including immune-related toxicities, must be carefully considered. The role of Durvalumab as a consolidative treatment for unresectable stage III NSCLC, as demonstrated in the PACIFIC trial, marked a significant milestone in the adoption of immunotherapy. However, recent findings suggest that its benefit varies among patient subgroups, highlighting the need for more precise biomarkers beyond PD-L1 expression. Ongoing trials, such as PACIFIC-9 and AEGEAN, are investigating durvalumab in different settings and combination therapies with an aim to overcome resistance mechanisms. The PACIFIC-9 is an example where durvalumab is being combined with the CD73-blocking anti-CD73 antibody oleclumab and the CD94/NKG2A-blocking monalizumab in unresectable stage III NSCLC patients who maintain a stable response through chemoradiotherapy. Early findings are encouraging, but phase III efficacy data remain awaited. Heterogeneity in treatment response between tumor types, including bladder carcinoma, head and neck cancers, and cholangiocarcinoma, is one reason why it is worth aiming for tumor-intrinsic and microenvironmental determinants of responsiveness to immunotherapy. Durvalumab is of landmark significance in a range of malignancies but needs further efforts in the characterization of resistance mechanisms, the optimization of combination strategies, and the development of predictive models for the guidance of personalised therapeutic regimens.
ParvezA.
ChoudharyF.
MudgalP.
PD-1 and PD-L1: architects of immune symphony and immunotherapy breakthroughs in cancer treatment.Front. Immunol.202314129634110.3389/fimmu.2023.129634138106415
MamdaniH.
MatosevicS.
KhalidA.B.
DurmG.
JalalS.I.
Immunotherapy in lung cancer: current landscape and future directions.Front. Immunol.20221382361810.3389/fimmu.2022.82361835222404
SpigelD.R.
Faivre-FinnC.
GrayJ.E.
Five-year survival outcomes from the PACIFIC trial: durvalumab after chemoradiotherapy in stage III non–small-cell lung cancer.J. Clin. Oncol.202240121301131110.1200/JCO.21.0130835108059
MarkhamM.J.
WachterK.
AgarwalN.
Clinical cancer advances 2020: annual report on progress against cancer from the American Society of Clinical Oncology.J. Clin. Oncol.20203810108110.1200/JCO.19.0314132013670
KelleyR.K.
SangroB.
HarrisW.
Safety, efficacy, and pharmacodynamics of tremelimumab plus durvalumab for patients with unresectable hepatocellular carcinoma: randomized expansion of a phase I/II study.J. Clin. Oncol.202139272991300110.1200/JCO.20.0355534292792
BoussiosS.
SheriffM.
RassyE.
Immuno-oncology: a narrative review of gastrointestinal and hepatic toxicities.Ann. Transl. Med.20219542310.21037/atm‑20‑736133842644
HeymachJ.V.
MitsudomiT.
HarpoleD.
Design and rationale for a phase III, double-blind, placebo-controlled study of neoadjuvant durvalumab+ chemotherapy followed by adjuvant durvalumab for the treatment of patients with resectable stages II and III non-small-cell lung cancer: the AEGEAN trial.Clin. Lung Cancer2022233e247e25110.1016/j.cllc.2021.09.01034819266
LauriolaA.
DavalliP.
MarvertiG.
SantiS.
CaporaliA.
D’ArcaD.
Targeting the interplay of independent cellular pathways and immunity: a challenge in cancer immunotherapy.Cancers20231511300910.3390/cancers1511300937296972
ChickR.C.
GundersonA.J.
RahmanS.
CloydJ.M.
Neoadjuvant immunotherapy for localized pancreatic cancer: challenges and early results.Cancers20231515396710.3390/cancers1515396737568782
MegyesfalviZ.
GayC.M.
PopperH.
Clinical insights into small cell lung cancer: Tumor heterogeneity, diagnosis, therapy, and future directions.CA Cancer J. Clin.202373662065210.3322/caac.2178537329269
PanB.
ShenB.
The ADRIATIC study: revolutionizing the standard treatment paradigm for concurrent chemoradiotherapy in limited-stage small cell lung cancer.Journal of the National Cancer Center2025511210.1016/j.jncc.2024.12.00340040876
ChenY.
LiH.
FanY.
Shaping the tumor immune microenvironment of SCLC: Mechanisms, and opportunities for immunotherapy.Cancer Treat. Rev.202312010260610.1016/j.ctrv.2023.10260637579532
LuS.
SteinJ.E.
RimmD.L.
Comparison of biomarker modalities for predicting response to PD-1/PD-L1 checkpoint blockade: a systematic review and meta-analysis.JAMA Oncol.2019581195120410.1001/jamaoncol.2019.154931318407
MellL.K.
Torres-SaavedraP.A.
WongS.J.
Radiotherapy with cetuximab or durvalumab for locoregionally advanced head and neck cancer in patients with a contraindication to cisplatin (NRG-HN004): an open-label, multicentre, parallel-group, randomised, phase 2/3 trial.Lancet Oncol.202425121576158810.1016/S1470‑2045(24)00507‑239551064
TabernaM.
OlivaM.
MesíaR.
Cetuximab-containing combinations in locally advanced and recurrent or metastatic head and neck squamous cell carcinoma.Front. Oncol.2019938310.3389/fonc.2019.0038331165040
BarlesiF.
ChoB.C.
GoldbergS.B.
PACIFIC-9: Phase III trial of durvalumab + oleclumab or monalizumab in unresectable stage III non-small-cell lung cancer.Future Oncol.202420292137214710.1080/14796694.2024.235416039023287
BarlesiF.
GoldbergS.B.
MannH.
GopinathanA.
NewtonM.D.
AggarwalC.
Phase 3 study of durvalumab combined with oleclumab or monalizumab in patients with unresectable stage III NSCLC (PACIFIC-9).J. Clin. Oncol.20234116Suppl.TPS8610TPS0
AntoniaS.J.
VillegasA.
DanielD.
Overall survival with durvalumab after chemoradiotherapy in stage III NSCLC.N. Engl. J. Med.2018379242342235010.1056/NEJMoa180969730280658
MeciA.
GoyalN.
SlonimskyG.
Mechanisms of resistance and therapeutic perspectives in immunotherapy for advanced head and neck cancers.Cancers202416470310.3390/cancers1604070338398094
Birnboim-PerachR.
BenharI.
Using combination therapy to overcome diverse challenges of immune checkpoint inhibitors treatment.Int. J. Biol. Sci.202420103911392210.7150/ijbs.9369739113705