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No longer recruiting (closed or complete)Last updated: 16 February 2026

PACIFIC-9: This trial is testing different combinations of targeted therapy in people with locally advanced non-small cell lung cancer that has not progressed on prior chemoradiotherapy treatment and is unable to be surgically removedA Phase III, Double-blind, Placebo-controlled, Randomised, Multicentre, International Study of Durvalumab Plus Oleclumab and Durvalumab Plus Monalizumab in Patients With Locally Advanced (Stage III), Unresectable Non-small Cell Lung Cancer (NSCLC) Who Have Not Progressed Following Definitive, Platinum-Based Concurrent Chemoradiation Therapy

Trial purpose

Medical clipboardCancer treatment

Tumor type

Lung Cancers Lung cancer

Age

People18+

Trial acronym

PACIFIC-9

Clinical summary

Summary

Eligible patients will be randomised into one of three arms of the study. Arm A: participants will receive treatment with Durvalumab + Oleclumab, Arm B: participants will receive treatment with Durvalumab + Monalizumab, and Arm C: participants will receive Durvalumab and a placebo.

Conditions

This trial is treating people with non-small cell lung cancer

Eligibility

Inclusion

  • Participant must be ≥ 18 years at the time of screening.
  • Histologically- or cytologically-documented NSCLC and have been treated with concurrent CRT for locally advanced, unresectable (Stage III) disease
  • Provision of a tumour tissue sample obtained prior to CRT
  • Documented tumour PD-L1 status by central lab
  • Documented EGFR and ALK wild-type status (local or central).
  • Patients must not have progressed following definitive, platinum based, concurrent chemoradiotherapy
  • Participants must have received at least 2 cycles of platinum-based chemotherapy concurrent with radiation therapy
  • Participants must have received a total dose of radiation of 60 Gy ±10% (54 Gy to 66 Gy) as part of the chemoradiation therapy, to be randomised. Radiation therapy should be administered by intensity modulated RT (preferred) or 3D-conforming technique.
  • WHO performance status of 0 or 1 at randomization
  • Adequate organ and marrow function

Exclusion

  • History of another primary malignancy except for malignancy treated with curative intent with no known active disease ≥5 years before the first dose of study intervention and of low potential risk for recurrence, adequately resected non-melanoma skin cancer and curatively treated in situ disease, or adequately treated carcinoma in situ or Ta tumours without evidence of disease.
  • Mixed small cell and non-small cell lung cancer histology.
  • Participants who receive sequential (not inclusive of induction) chemoradiation therapy for locally advanced (Stage III) unresectable NSCLC.
  • Participants with locally advanced (Stage III) unresectable NSCLC who have progressed during platinum-based cCRT.
  • Any unresolved toxicity CTCAE >Grade 2 from the prior chemoradiation therapy (excluding alopecia).
  • Participants with ≥grade 2 pneumonitis from prior chemoradiation therapy.
  • History of idiopathic pulmonary fibrosis, drug-induced pneumonitis, or idiopathic pneumonitis - regardless of time of onset prior to randomisation. Evidence of active non-CRT induced pneumonitis (≥ Grade 2), active pneumonia, active ILD, active or recently treated pleural effusion, or current pulmonary fibrosis - diagnosed in the past 6 months prior to randomization.
  • Active or prior documented autoimmune or inflammatory disorders (with exceptions)
  • Current or prior use of immunosuppressive medication within 14 days before the first dose of durvalumab.

Inclusion

  • Your cancer has not spread to other parts of the body (localised).
  • Your cancer has not spread to other parts of the body, but it is not possible to perform surgery to remove it (unresectable).
  • You have had a certain type of treatment or surgical procedure.

Exclusion

  • You have been diagnosed with a prior or secondary type of cancer.
  • You have certain types of non-cancer medical conditions.
  • You have had certain treatments, surgical procedures or drugs.
Message

Clinical trials have complex eligibility criteria, and other criteria may apply for this trial. Ask your doctor about whether this trial could be right for you.

Participating hospitals

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More information

Trial Identifiers

Information on this page is partially produced from ClinicalTrials.gov *. View further details about this trial on the registry via the links below:

Trial sponsor

AstraZeneca

Scientific Title

A Phase III, Double-blind, Placebo-controlled, Randomised, Multicentre, International Study of Durvalumab Plus Oleclumab and Durvalumab Plus Monalizumab in Patients With Locally Advanced (Stage III), Unresectable Non-small Cell Lung Cancer (NSCLC) Who Have Not Progressed Following Definitive, Platinum-Based Concurrent Chemoradiation Therapy

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