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NCT03526887: Replay

Re-challenge Pembrolizumab Study as a Second or Further Line in Patients With Advanced NSCLC

Completed Phase 2 Results posted Last updated 24 March 2025
What this trial tests

Phase 2 trial testing Pembrolizumab in Lung Cancer in 73 participants. Completed in 9 March 2023.

Timeline
15 July 2018
Primary endpoint
30 December 2022
9 March 2023

Quick facts

Lead sponsorSpanish Lung Cancer Group
PhasePhase 2
StatusCompleted
Study typeINTERVENTIONAL
Allocationnon randomized
Designparallel
Maskingnone
Primary purposetreatment
Enrollment73
Start date15 July 2018
Primary completion30 December 2022
Estimated completion9 March 2023
Sites19 locations across Spain

Drugs / interventions tested

Conditions studied

Sponsor

Spanish Lung Cancer Group — full company profile →

Who can join

18 and older, any sex, with Lung Cancer. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Efficacy of Pembrolizumab Re-challenge Measured by Overall Survival Primary · From date of randomization until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 48 months.

Overall survival: Defined as the length of time from either the date of diagnosis or the start of the treatment that patients diagnosed with the disease are still alive.

GroupValue95% CI
Cohort 19.41 – 18
Cohort 219.13 – 48
Efficacy of Pembrolizumab Re-challenge Measured by Progression Free Survival (PFS) Per RECIST v1.1. Secondary · From date of randomization until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 36 months.

PFS: Defined as the length of time from the date of randomization to the date of the first documented progression of disease. "Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions"

GroupValue95% CI
Cohort 11.60 – 11
Cohort 24.10.2 – 18
Best Global Response Secondary · From the date of randomization until end of follow up, up to 36 months

To evaluate the best global response of the treatment as measured by investigator-assessed overall response rate (ORR) according to RECIST v1.1. Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Progression is defined as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.

Complete response
GroupValue95% CI
Cohort 10
Cohort 20
Partial response
GroupValue95% CI
Cohort 11
Cohort 23
Stable disease
GroupValue95% CI
Cohort 124
Cohort 211
Progression disease
GroupValue95% CI
Cohort 125
Cohort 23
Not evaluable
GroupValue95% CI
Cohort 15
Cohort 21

Adverse events — posted to ClinicalTrials.gov

Time frame: Adverse Events were assessed an average of 30 months. Deaths were assessed up to 48 months.. Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Cohort 1
Serious: 2/55 (4%)
Deaths: 44/55
Cohort 2
Serious: 1/18 (6%)
Deaths: 5/18

Serious adverse events (3 terms)

ReactionSystemCohort 1Cohort 2
Gastrointestinal disorderGastrointestinal disorders
Alkaline phosphatase increasedBlood and lymphatic system disorders
Blood bilirubin increasedBlood and lymphatic system disorders
Other adverse events (12 terms — click to expand)

ReactionSystemCohort 1Cohort 2
DiarrheaGastrointestinal disorders
FatigueGeneral disorders
PruritusSkin and subcutaneous tissue disorders
NauseaGastrointestinal disorders
Stomach painGastrointestinal disorders
Alanine aminotransferase increasedBlood and lymphatic system disorders
Aspartate aminotransferase increasedInvestigations
Blood bilirubin increasedInvestigations
AnorexiaMetabolism and nutrition disorders
ArthralgiaMusculoskeletal and connective tissue disorders
RashSkin and subcutaneous tissue disorders
HypomagnesemiaMetabolism and nutrition disorders

Most-reported serious reactions: Gastrointestinal disorder, Alkaline phosphatase increased, Blood bilirubin increased.

Data from ClinicalTrials.gov NCT03526887 adverse events section.

Sponsor's own description

Exploratory phase II trial of intravenous (IV) Pembrolizumab MK-3475 as second or further line with advanced Non-small cell Lung Cancer (NSCLC) who have failed to a prior treatment with anti-PDL1 drug. Pembrolizumab 200 mg ,Q3W, IV infusion, Day 1 of each 3 week cycle will be administered until disease progression.

Publications & conference data

8 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Current Status in Rechallenge of Immunotherapy.
    Hu H, Wang K, Jia R, Zeng ZX, et al · · 2023 · cited 35× · PMID 37215995 · DOI 10.7150/ijbs.82776
  2. Safety and efficacy of retreatment with immune checkpoint inhibitors in non-small cell lung cancer: a systematic review and meta-analysis.
    Cai Z, Zhan P, Song Y, Liu H, et al · · 2022 · cited 27× · PMID 36090645 · DOI 10.21037/tlcr-22-140
  3. Retreatment with immune checkpoint inhibitors in solid tumors: a systematic review.
    Yang K, Li J, Sun Z, Zhao L, et al · · 2020 · cited 21× · PMID 33294036 · DOI 10.1177/1758835920975353
  4. Immune checkpoints inhibitors rechallenge in non-small-cell lung cancer: different scenarios with different solutions?
    Metro G, Signorelli D. · · 2020 · cited 17× · PMID 31983926 · DOI 10.2217/lmt-2019-0012
  5. Beyond First-Line Immunotherapy: Potential Therapeutic Strategies Based on Different Pattern Progressions: Oligo and Systemic Progression.
    Prelaj A, Pircher CC, Massa G, Martelli V, et al · · 2021 · cited 15× · PMID 33803958 · DOI 10.3390/cancers13061300
  6. Recent advances in immunotherapy for cervical cancer.
    Ogasawara A, Hasegawa K. · · 2025 · cited 13× · PMID 39888529 · DOI 10.1007/s10147-025-02699-0
  7. Deep diving in the PACIFIC: Practical issues in stage III non-small cell lung cancer to avoid shipwreck.
    Mielgo-Rubio X, Rojo F, Mezquita-Pérez L, Casas F, et al · · 2020 · cited 10× · PMID 33312885 · DOI 10.5306/wjco.v11.i11.898
  8. Advances and challenges in cancer immunotherapy: mechanisms, clinical applications, and future directions.
    Vatsavai N, Kaur Bhinder S, Shaik R, Mahira S, et al · · 2025 · cited 5× · PMID 40584631 · DOI 10.3389/fphar.2025.1602529

Verify or expand the search:

Other trials of Pembrolizumab

Trials testing the same drug.

Other recruiting trials for Lung Cancer

Currently open trials in the same condition.

Other Spanish Lung Cancer Group trials

Trials by the same sponsor.

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Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT03526887.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing