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A Study of Poziotinib in Previously Treated Participants With Locally Advanced or Metastatic NSCLC Harboring HER2 Exon 20 Mutations

A Randomized, Phase 3 Study of Poziotinib in Previously Treated Patients With Locally Advanced or Metastatic Non-Small Cell Lung Cancer (NSCLC) Harboring HER2 Exon 20 Mutations (PINNACLE)

Status
Suspended
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05378763
Acronym
PINNACLE
Enrollment
268
Registered
2022-05-18
Start date
2022-05-12
Completion date
2028-12-25
Last updated
2026-09-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

NSCLC

Keywords

Epidermal growth factor receptor (EGFR), HER2, Exon 20 mutation

Brief summary

The primary purpose of this study is to compare the progression-free survival (PFS) in participants with locally advanced or metastatic non-small cell lung cancer (NSCLC) harboring human epidermal growth factor receptor 2 (HER2) exon 20 mutations when treated with poziotinib versus docetaxel.

Detailed description

This is a Phase 3, active-controlled, multicenter study to compare the efficacy and safety/tolerability of poziotinib versus docetaxel in previously treated participants with locally advanced or metastatic NSCLC harboring HER2 exon 20 mutations. Participants will be randomized in a 2:1 ratio to: * Arm A: Poziotinib 8 milligrams (mg), twice daily (BID) or * Arm B: Docetaxel 75 milligrams per meter square (mg/m\^2) The Screening Period lasts up to 21 days prior to Cycle 1, Day 1 (C1D1). Participants will be treated in 21-day cycles or until disease progression, death, intolerable adverse events (AEs), initiation of non-protocol anti-cancer treatment, or other protocol-specified reasons.

Interventions

Poziotinib tablets

DRUGDocetaxel

Docetaxel IV infusion

Sponsors

Spectrum Pharmaceuticals, Inc
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Participant must: 1. Be willing and capable of providing signed and dated Informed Consent, adhering to dosing and visit schedules, and meeting the study requirements 2. Have histologically or cytologically confirmed NSCLC 3. Have at least one measurable NSCLC target lesion per RECIST v.1.1 by local assessment 4. Participant has had at least one prior systemic treatment for locally advanced or metastatic NSCLC, including platinum and a checkpoint inhibitor (CPI) therapy, unless the investigator affirms that a CPI was not medically indicated. 5. Have documentation of HER2 exon 20 mutation 6. Have an Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 or 1 7. Have adequate hematologic, hepatic, and renal function at Baseline as per protocol

Exclusion criteria

Participant: 1. Has had previous treatment with poziotinib for treatment of NSCLC 2. Has EGFR or anaplastic lymphoma kinase (ALK) genome tumor alterations 3. Has had previous treatment with docetaxel for locally advanced or metastatic NSCLC. If docetaxel was received in the neo-adjuvant or adjuvant setting, progressive disease must have occurred ≥6 months after the last dose to be eligible 4. Has spinal cord compression or leptomeningeal disease 5. Has a high risk of cardiac disease, as determined by the Investigator 6. Has a history of, or signs of Grade ≥2 pneumonitis on current imaging studies 7. Is unable to take drugs orally 8. Is pregnant or breast-feeding

Design outcomes

Primary

MeasureTime frameDescription
Progression Free Survival (PFS)Up to approximately 5 yearsPFS is defined as the time (in months) from the start of the study treatment to the date of first documented disease progression by central radiographic evaluation per the Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v.1.1) or death due to any cause, whichever occurs first.

Secondary

MeasureTime frameDescription
Overall survival (OS)Up to approximately 5 yearsOS is defined as the time (in months) from the start of study treatment to the date of death due to any cause.
Objective Response Rate (ORR)Up to approximately 5 yearsORR is defined as the proportion of participants who achieve at least one complete response (CR) or partial response (PR) by the central radiographic evaluation as per the RECIST v.1.1 criteria, before disease progression. Per RECIST v.1.1 for solid tumors, CR is defined as disappearance of all tumor lesions (TLs) and disappearance or reduction of all pathological lymph nodes \<10mm (short axis). PR is ≥30% decrease in sum of diameters (SOD) from Baseline.
Disease Control Rate (DCR)Up to approximately 5 yearsDCR is defined as the proportion of participants who achieve at least one CR, PR, stable disease (SD), or non-CR/non-progressive disease (PD), by the central radiographic evaluation per the RECIST v.1.1 criteria, before disease progression. Per RECIST v.1.1 for solid tumors, CR is defined as disappearance of all tumor lesions (TLs) and disappearance or reduction of all pathological lymph nodes \<10mm (short axis). PR is ≥30% decrease in sum of diameters (SOD) from Baseline, and non PD is ≥20% increase in SOD from previous smallest SOD on study, and an absolute increase of ≥5mm). SD is SOD change neither sufficient for PR nor sufficient for PD.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 2, 2026