ClinicalTrials.gg
TerminatedNCT03318939Updated Jun 12, 2026Results posted

Phase 2 Study of Poziotinib in Participants With NSCLC Having EGFR or HER2 Exon 20 Insertion Mutation

A Phase 2 interventional study of Poziotinib in NSCLC, sponsored by Spectrum Pharmaceuticals, Inc. Terminated at 63 sites in 8 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-06-12.

Sponsored by Spectrum Pharmaceuticals, Inc (part of Zydus Lifesciences Limited) · Phase 2, Interventional, and Treatment

Why this study was terminated
Strategic business decision (unrelated to safety)
Phase
Phase 2
Study type
Interventional
Enrollment
648
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This is a Phase 2, open-label, multi-center study to evaluate the efficacy and the safety/tolerability of poziotinib in seven participant cohorts for up to 603 previously treated and treatment-naïve NSCLC participant. Cohorts 3 and 4 were added with Amendment 1 and three additional cohorts were added with Amendment 2 (Cohorts 5, 6 and 7).

Read the detailed description

The Screening period (Day -30 to Day -1) lasts up to approximately 30 days prior to Cycle 1, Day 1. Participant must meet all Inclusion/Exclusion Criteria to participate in the study. Eligible participants will provide written Informed Consent prior to undergoing any study procedures.

Each treatment cycle is 28 calendar days in duration. There will be seven participant cohorts and eligible participants will be enrolled into each cohort in parallel based on epidermal growth factor receptor (EGFR) or human epidermal growth factor receptor 2 (HER2) exon 20 mutation status and prior treatment status:

  • Cohort 1: Previously treated participant with EGFR exon 20 insertion mutation positive NSCLC (complete)
  • Cohort 2: Previously treated participant with HER2 exon 20 insertion mutation positive NSCLC (complete)
  • Cohort 3: Treatment naïve participant with EGFR exon 20 insertion mutation positive NSCLC (complete)
  • Cohort 4: Treatment naïve participant with HER2 exon 20 insertion mutation positive NSCLC (fully enrolled)
  • Cohort 5: Participants who meet the criteria for enrollment in Cohort 1 to 4, but the enrollment in the respective cohort has been closed (closed to enrollment)
  • Cohort 6: Participants with acquired EGFR mutation who progressed while on treatment with first-line osimertinib (closed to enrollment)
  • Cohort 7: Participants with EGFR or HER2 activating mutations (closed to enrollment)

Toxicity will be assessed based on the grade of the adverse events using CTCAE version 4.03.

On Day 1 of each 28-day cycle, the participant's absolute neutrophil count (ANC) must be ≥1.5×10\^9/L and platelet count must be ≥100×10\^9/L before administering poziotinib. All participants will be treated until disease progression (except for first progression in Cohort 5), death, intolerable adverse events (AEs), or other protocol-specified reasons for participant withdrawal.

02

Conditions studied

  • NSCLC

Keywords

  • EGFR
  • HER2
  • Exon 20 insertion mutation
03

In context

Lead sponsor

Spectrum Pharmaceuticals, Inc is the lead sponsor of 60 studies on the registry; 1 is open to participants now.

Of its 18 completed or terminated interventional studies of FDA-regulated products, 12 (67%) have results posted.

First submitted before Spectrum Pharmaceuticals, Inc became part of Zydus Lifesciences Limited.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Key Inclusion Criteria:

  • Participant must be willing and capable of giving written , adhering to dosing and visit schedules, and meeting all study requirements
  • Participant has or cytologically confirmed locally advanced or non-small cell lung cancer (NSCLC) that is not amenable to treatment with curative intent
  • Prior treatment status:

    • Cohorts 1 and 2: Participant has had at least one prior systemic treatment for locally advanced or metastatic NSCLC
    • Cohorts 3 and 4: Participant is treatment-naïve for locally advanced or metastatic NSCLC and eligible to receive treatment with poziotinib as determined by the Investigator. /neo-adjuvant therapies (chemotherapy, radiotherapy, or agents) are permissible as long as they end at least 15 days prior to study entry.
    • Cohort 5: Participants who meet the criteria for enrollment in Cohorts 1 to 4, but the enrollment in the respective cohort has been closed
    • Cohort 6: Participant with EGFR mutation-positive NSCLC who progressed while on treatment with first-line osimertinib
    • Cohort 7: Participant has had at least one prior systemic treatment for locally advanced or metastatic NSCLC
  • Specific mutations:

    • Cohort 1 and 3: Documented EGFR exon 20 insertion mutation
    • Cohort 2 and 4: Documented exon 20 insertion mutation
    • Cohort 5: Documented EGFR or HER2 exon 20 insertion mutations
    • Cohort 6: Documented acquired EGFR mutation (tested after osimertinib progression)
    • Cohort 7: Documented EGFR or HER2 activating mutations
  • Participant has adequate organ function at Baseline

Key Exclusion Criteria:

  • Participant has had previous treatment with poziotinib or any other EGFR or HER2 exon 20 insertion mutation-selective tyrosine kinase inhibitor (TKI) prior to study participation. The currently approved TKIs (ie, erlotinib, gefitinib, afatinib, osimertinib) are not considered to be exon 20 insertion-selective and are permissible (Cohorts 1 and 2).
  • Participant is concurrently receiving chemotherapy, biologics, immunotherapy for cancer treatment; systemic anti-cancer treatment or investigational treatment should not be used within 2 weeks or 5 half lives, whichever is longer; local radiation therapy for bone pain may be allowed
  • Participant has had other within the past 3 years, except for stable non-melanoma skin cancer, fully-treated and stable, early-stage prostate cancer, or carcinoma in situ of the cervix or breast without need of treatment
  • Participant is pregnant or breast-feeding
Terms in these criteria, in plain language(8)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

Adjuvant and neoadjuvant

Neoadjuvant treatment is given before the main treatment (usually surgery), often to shrink a tumour. Adjuvant treatment is given after it, to lower the chance of the cancer coming back.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

HER2

HER2 is a protein, made from the ERBB2 gene, that drives the growth of some cancers. A study may look for a level of the protein, extra copies of the gene, or a particular change in it.

In breast cancer, protein tests are read as HER2-positive, HER2-low or HER2-negative; other cancers use their own rules. Check which test result the study requires.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
648 participants (actual)

Study arms

  • Experimental
    Cohort 1: Poziotinib 16 mg

    Participants previously treated for epidermal growth factor receptor (EGFR) exon 20 insertion mutation-positive non-small cell lung cancer (NSCLC) received poziotinib, 16 milligrams (mg), orally, once daily (QD) in each 28-day cycle until disease progression, death, intolerable adverse events (AEs), or for up to a maximum of 35 months, whichever occurs first.

    Drug: Poziotinib

  • Experimental
    Cohort 2: Poziotinib 16 mg

    Participants previously treated for human epidermal growth factor receptor 2 (HER2) exon 20 insertion mutation-positive NSCLC received poziotinib, 16 mg, orally, QD in each 28-day cycle until disease progression, death, intolerable AEs, or for up to a maximum of 32 months, whichever occurs first.

    Drug: Poziotinib

  • Experimental
    Cohort 3: Poziotinib 16 mg

    Treatment naïve participants with EGFR exon 20 insertion mutation-positive NSCLC received poziotinib, 16 mg, orally, QD in each 28-day cycle until disease progression, death, intolerable AEs, or for up to a maximum of 24 months, whichever occurs first.

    Drug: Poziotinib

  • Experimental
    Cohort 4: Poziotinib 8 mg

    Treatment naïve participants with HER2 exon 20 insertion mutation-positive NSCLC received poziotinib, 8 mg, orally, twice daily (BID) in each 28-day cycle until disease progression, death, intolerable AEs, or for up to a maximum of 27 months, whichever occurs first.

    Drug: Poziotinib

  • Experimental
    Cohort 4: Poziotinib 16 mg

    Treatment naïve participants with HER2 exon 20 insertion mutation-positive NSCLC received poziotinib, 16 mg, orally, QD in each 28-day cycle until disease progression, death, intolerable AEs, or for up to a maximum of 27 months, whichever occurs first.

    Drug: Poziotinib

  • Experimental
    Cohort 5: Poziotinib 6 mg

    Participants who met the criteria for enrollment in Cohort 1 to Cohort 4, but the enrollment in the respective cohort had been closed were enrolled in this cohort and received poziotinib, 6 mg, orally, BID in each 28-day cycle until disease progression, death, intolerable AEs, or for up to a maximum of 23 months, whichever occurs first.

    Drug: Poziotinib

  • Experimental
    Cohort 5: Poziotinib 8mg

    Participants who met the criteria for enrollment in Cohort 1 to Cohort 4, but the enrollment in the respective cohort had been closed were enrolled in this cohort and received poziotinib, 8 mg, orally, BID in each 28-day cycle until disease progression (except first progression), death, intolerable AEs, or for up to a maximum of 25 months, whichever occurs first.

    Drug: Poziotinib

  • Experimental
    Cohort 5: Poziotinib 10 mg

    Participants who met the criteria for enrollment in Cohort 1 to Cohort 4, but the enrollment in the respective cohort had been closed were enrolled in this cohort and received poziotinib, 10 mg, orally, QD in each 28-day cycle until disease progression (except first progression), death, intolerable AEs, or for up to a maximum of 15 months, whichever occurs first.

    Drug: Poziotinib

  • Experimental
    Cohort 5: Poziotinib 12 mg

    Participants who met the criteria for enrollment in Cohort 1 to Cohort 4, but the enrollment in the respective cohort had been closed were enrolled in this cohort and received poziotinib, 12 mg, orally, QD in each 28-day cycle until disease progression (except first progression), death, intolerable AEs, or for up to a maximum of 26 months, whichever occurs first.

    Drug: Poziotinib

  • Experimental
    Cohort 5: Poziotinib 16 mg

    Participants who met the criteria for enrollment in Cohort 1 to Cohort 4, but the enrollment in the respective cohort had been closed were enrolled in this cohort and received poziotinib, 16 mg, orally, QD in each 28-day cycle until disease progression (except first progression), death, intolerable AEs, or for up to a maximum of 18 months, whichever occurs first.

    Drug: Poziotinib

  • Experimental
    Cohort 6: Poziotinib 8 mg

    Participants with acquired EGFR mutation who progressed while on treatment with first-line osimertinib received poziotinib, 8 mg, orally, BID in each 28-day cycle until disease progression, death, intolerable AEs, or for up to a maximum of 29 months, whichever occurs first.

    Drug: Poziotinib

  • Experimental
    Cohort 6: Poziotinib 16 mg

    Participants with acquired EGFR mutation who progressed while on treatment with first-line osimertinib received poziotinib, 16 mg, orally, QD in each 28-day cycle until disease progression, death, intolerable AEs, or for up to a maximum of 7 months, whichever occurs first.

    Drug: Poziotinib

  • Experimental
    Cohort 7: Poziotinib 8 mg

    Participants with EGFR or HER2 activating mutations received poziotinib, 8 mg, orally, BID in each 28-day cycle until disease progression, death, intolerable AEs, or for up to a maximum of 20 months, whichever occurs first.

    Drug: Poziotinib

  • Experimental
    Cohort 7: Poziotinib 16 mg

    Participants with EGFR or HER2 activating mutations received poziotinib, 16 mg, orally, QD in each 28-day cycle until disease progression, death, intolerable AEs, or for up to a maximum of 4 months, whichever occurs first.

    Drug: Poziotinib

Interventions

  • The poziotinib drug substance is a hydrochloride salt of poziotinib and is formulated as a tablet for oral administration.

06

What researchers measure

Primary outcomes

  1. Objective Response Rate (ORR)

    ORR was defined as the percentage of participants whose best overall response (BOR) was confirmed to be complete response (CR) or partial response (PR) from the first dose of poziotinib until the last tumor assessment on study. ORR was assessed by the Independent Radiologic Review Committee according to Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v1.1). CR was defined as the disappearance of all non-nodal target lesions. Any pathological lymph nodes must have become normal (i.e., decrease in the short axis to less than (\<) 10 millimeters (mm). PR was defined as at least a 30 percent (%) decrease in the sum of diameters (SOD) of all target lesions, taking as reference the baseline SOD. Additionally, progression of target lesions must not have been present.

    Time frame: Up to 3 years

Secondary outcomes

  1. Number of Participants With Treatment-Emergent Adverse Events (TEAEs)

    An adverse event (AE) was any untoward medical occurrence in a clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. TEAEs were defined as AEs that occur from the first dose of study treatment until 35 (±5) days after the last dose of study treatment.

    Time frame: Up to 5 years

  2. Disease Control Rate (DCR)

    DCR was defined as percentage of participants with best response of CR, PR, or stable disease (SD) from the first dose of poziotinib to the last tumor assessment on study. CR was defined as the disappearance of all non-nodal target lesion. Any pathological lymph nodes must have become normal (i.e., decrease in the short axis to \<10 millimeters (mm). PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD. Additionally, progression of target lesions must not have been present. SD was defined as neither sufficient shrinkage of target lesions to qualify for PR nor sufficient increase to qualify for progressive disease (PD).

    Time frame: Up to 3 years

  3. Duration of Response (DoR)

    DoR was evaluated only for participants who had CR or PR and was defined as the time from the date that response evaluation criteria were first met for CR or PR (whichever status was recorded first) until the first subsequent date that PD or death was documented. CR was defined as the disappearance of all non-nodal target lesion. Any pathological lymph nodes must have become normal (i.e., decrease in the short axis to \<10 millimeters (mm). PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD. Additionally, progression of target lesions must not have been present. Disease progression was defined as greater than or equal to (≥) 20% increase in the SOD of target lesions taking as reference the nadir SOD (or the baseline, if the baseline is the nadir value). In addition to the relative increase of 20% in SOD, the SOD must also have demonstrated an absolute increase of ≥ 5 mm.

    Time frame: Up to 3 years

Other outcomes

  1. Progression-free Survival (PFS) - Exploratory

    PFS was defined as the time (in months) from the treatment start date to the first date of documented PD or death. Disease progression was defined as ≥20% increase in the SOD of target lesions taking as reference the nadir SOD (or the baseline if the baseline is the nadir value). In addition to the relative increase of 20% in SOD, the SOD must also have demonstrated an absolute increase of ≥ 5 mm.

    Time frame: Up to 3 years

07

Results

Posted Jun 12, 2026
Limitations and caveats
Early termination of trial due to business reasons, not related to safety.

Participant flow

Participants were enrolled at 62 investigative sites from 11 October 2017 to 03 April 2023.

Participant flow — Overall Study
MilestoneCohort 1: Poziotinib 16 mgCohort 2: Poziotinib 16 mgCohort 3: Poziotinib 16 mgCohort 4: Poziotinib 8 mgCohort 4: Poziotinib 16 mgCohort 5: Poziotinib 6 mgCohort 5: Poziotinib 8mgCohort 5: Poziotinib 10 mgCohort 5: Poziotinib 12 mgCohort 5: Poziotinib 16 mgCohort 6: Poziotinib 8 mgCohort 6: Poziotinib 16 mgCohort 7: Poziotinib 8 mgCohort 7: Poziotinib 16 mg
Started115908033473812535252671179
Completed10201000000000
Not completed114907833463812535252671179
Withdrew: Adverse event16139313165310021
Withdrew: Initiation of non-protocol therapy31012010000010
Withdrew: Disease progression615351213024562212146158
Withdrew: Withdrawal by subject1458143124360010
Withdrew: Delay of poziotinib administration for more than 28 days since last administration02001011020010
Withdrew: Investigator decision40101160100010
Withdrew: Sponsor decision000503120001010
Withdrew: Lost to follow-up02100000000000
Withdrew: Death1410715372420040
Withdrew: Reason not specified241121141210010

Outcome measures

PrimaryObjective Response Rate (ORR)

ORR was defined as the percentage of participants whose best overall response (BOR) was confirmed to be complete response (CR) or partial response (PR) from the first dose of poziotinib until the last tumor assessment on study. ORR was assessed by the Independent Radiologic Review Committee according to Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v1.1). CR was defined as the disappearance of all non-nodal target lesions. Any pathological lymph nodes must have become normal (i.e., decrease in the short axis to less than (\<) 10 millimeters (mm). PR was defined as at least a 30 percent (%) decrease in the sum of diameters (SOD) of all target lesions, taking as reference the baseline SOD. Additionally, progression of target lesions must not have been present.

Time frame:
Up to 3 years
Reported as:
Number · percentage of participants
Objective Response Rate (ORR)
percentage of participantsCohort 1: Poziotinib 16 mgCohort 2: Poziotinib 16 mgCohort 3: Poziotinib 16 mgCohort 4: PoziotinibCohort 5: PoziotinibCohort 6: PoziotinibCohort 7: Poziotinib
Objective Response Rate (ORR)13.9 (8.2 to 21.6)27.8 (18.9 to 38.2)0 (0 to 0)39 (28 to 50)0 (0 to 0)0 (0 to 0)0 (0 to 0)
SecondaryNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)

An adverse event (AE) was any untoward medical occurrence in a clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. TEAEs were defined as AEs that occur from the first dose of study treatment until 35 (±5) days after the last dose of study treatment.

Time frame:
Up to 5 years
Reported as:
Count of participants · Participants
Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
ParticipantsCohort 1: Poziotinib 16 mgCohort 2: Poziotinib 16 mgCohort 3: Poziotinib 16 mgCohort 4: Poziotinib 8 mgCohort 4: Poziotinib 16 mgCohort 5: Poziotinib 6 mgCohort 5: Poziotinib 8mgCohort 5: Poziotinib 10 mgCohort 5: Poziotinib 12 mgCohort 5: Poziotinib 16 mgCohort 6: Poziotinib 8 mgCohort 6: Poziotinib 16 mgCohort 7: Poziotinib 8 mgCohort 7: Poziotinib 16 mg
Number of Participants With Treatment-Emergent Adverse Events (TEAEs)115908033473712435252661179
SecondaryDisease Control Rate (DCR)

DCR was defined as percentage of participants with best response of CR, PR, or stable disease (SD) from the first dose of poziotinib to the last tumor assessment on study. CR was defined as the disappearance of all non-nodal target lesion. Any pathological lymph nodes must have become normal (i.e., decrease in the short axis to \<10 millimeters (mm). PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD. Additionally, progression of target lesions must not have been present. SD was defined as neither sufficient shrinkage of target lesions to qualify for PR nor sufficient increase to qualify for progressive disease (PD).

Time frame:
Up to 3 years
Reported as:
Number · percentage of participants
Disease Control Rate (DCR)
percentage of participantsCohort 1: Poziotinib 16 mgCohort 2: Poziotinib 16 mgCohort 3: Poziotinib 16 mgCohort 4: PoziotinibCohort 5: PoziotinibCohort 6: PoziotinibCohort 7: Poziotinib
Disease Control Rate (DCR)67.8 (58.5 to 76.2)70 (59.4 to 79.2)0 (0 to 0)73 (61 to 82)0 (0 to 0)0 (0 to 0)0 (0 to 0)
SecondaryDuration of Response (DoR)

DoR was evaluated only for participants who had CR or PR and was defined as the time from the date that response evaluation criteria were first met for CR or PR (whichever status was recorded first) until the first subsequent date that PD or death was documented. CR was defined as the disappearance of all non-nodal target lesion. Any pathological lymph nodes must have become normal (i.e., decrease in the short axis to \<10 millimeters (mm). PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD. Additionally, progression of target lesions must not have been present. Disease progression was defined as greater than or equal to (≥) 20% increase in the SOD of target lesions taking as reference the nadir SOD (or the baseline, if the baseline is the nadir value). In addition to the relative increase of 20% in SOD, the SOD must also have demonstrated an absolute increase of ≥ 5 mm.

Time frame:
Up to 3 years
Reported as:
Median · months
Duration of Response (DoR)
monthsCohort 1: Poziotinib 16 mgCohort 2: Poziotinib 16 mgCohort 3: Poziotinib 16 mgCohort 4: PoziotinibCohort 5: PoziotinibCohort 6: PoziotinibCohort 7: Poziotinib
Duration of Response (DoR)6.5 (3.3 to 8.2)5.1 (4.2 to 5.5)—5.7 (4.6 to 11.9)———
Other pre-specifiedProgression-free Survival (PFS) - Exploratory

PFS was defined as the time (in months) from the treatment start date to the first date of documented PD or death. Disease progression was defined as ≥20% increase in the SOD of target lesions taking as reference the nadir SOD (or the baseline if the baseline is the nadir value). In addition to the relative increase of 20% in SOD, the SOD must also have demonstrated an absolute increase of ≥ 5 mm.

Time frame:
Up to 3 years

Results for this outcome have not been posted.

Adverse events

Collected over Up to 5 years. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Cohort 1: Poziotinib 16 mg16/115 (13.9%)50/115 (43.5%)115/115 (100%)
Cohort 2: Poziotinib 16 mg16/90 (17.8%)36/90 (40%)90/90 (100%)
Cohort 3: Poziotinib, 16 mg14/80 (17.5%)35/80 (43.8%)80/80 (100%)
Cohort 4: Poziotinib 8 mg6/33 (18.2%)12/33 (36.4%)33/33 (100%)
Cohort 4: Poziotinib 16 mg8/47 (17%)18/47 (38.3%)47/47 (100%)
Cohort 5: Poziotinib 6 mg11/38 (28.9%)13/38 (34.2%)37/38 (97.4%)
Cohort 5: Poziotinib 8mg24/125 (19.2%)38/125 (30.4%)124/125 (99.2%)
Cohort 5: Poziotinib 10 mg7/35 (20%)10/35 (28.6%)35/35 (100%)
Cohort 5: Poziotinib 12 mg14/25 (56%)14/25 (56%)25/25 (100%)
Cohort 5: Poziotinib 16 mg4/26 (15.4%)12/26 (46.2%)26/26 (100%)
Cohort 6: Poziotinib 8 mg1/7 (14.3%)1/7 (14.3%)6/7 (85.7%)
Cohort 6: Poziotinib 16 mg0/1 (0%)0/1 (0%)1/1 (100%)
Cohort 7: Poziotinib 8 mg6/17 (35.3%)9/17 (52.9%)17/17 (100%)
Cohort 7: Poziotinib 16 mg5/9 (55.6%)3/9 (33.3%)9/9 (100%)
Most frequent serious events
Showing 10 of 159
Most frequent serious events
EventCohort 1: Poziotinib 16 mgCohort 2: Poziotinib 16 mgCohort 3: Poziotinib, 16 mgCohort 4: Poziotinib 8 mgCohort 4: Poziotinib 16 mgCohort 5: Poziotinib 6 mgCohort 5: Poziotinib 8mgCohort 5: Poziotinib 10 mgCohort 5: Poziotinib 12 mgCohort 5: Poziotinib 16 mgCohort 6: Poziotinib 8 mgCohort 6: Poziotinib 16 mgCohort 7: Poziotinib 8 mgCohort 7: Poziotinib 16 mg
SepsisInfections and infestations2/1150/902/800/330/470/380/1250/350/251/261/70/10/170/9
VomitingGastrointestinal disorders1/1150/904/800/331/470/380/1252/351/251/261/70/11/170/9
FatigueGeneral disorders0/1152/900/800/330/470/381/1250/351/250/261/70/10/170/9
Abdominal pain upperGastrointestinal disorders0/1150/900/800/330/470/380/1250/350/250/261/70/10/170/9
PneumonitisRespiratory, thoracic and mediastinal disorders4/1150/903/801/331/470/381/1251/350/250/260/70/12/170/9
Pulmonary embolismRespiratory, thoracic and mediastinal disorders2/1154/904/800/330/470/380/1251/351/250/260/70/10/171/9
Urinary tract infectionInfections and infestations0/1150/900/801/331/470/380/1250/350/250/260/70/10/171/9
Acute myocardial infarctionCardiac disorders0/1150/900/800/331/470/380/1250/350/250/260/70/10/171/9
Decreased appetiteMetabolism and nutrition disorders1/1150/903/800/330/470/380/1250/350/250/260/70/10/171/9
Decubitus ulcerSkin and subcutaneous tissue disorders0/1150/900/800/330/470/380/1250/350/250/260/70/10/171/9
Most frequent other events
Showing 10 of 87
Most frequent other events
EventCohort 1: Poziotinib 16 mgCohort 2: Poziotinib 16 mgCohort 3: Poziotinib, 16 mgCohort 4: Poziotinib 8 mgCohort 4: Poziotinib 16 mgCohort 5: Poziotinib 6 mgCohort 5: Poziotinib 8mgCohort 5: Poziotinib 10 mgCohort 5: Poziotinib 12 mgCohort 5: Poziotinib 16 mgCohort 6: Poziotinib 8 mgCohort 6: Poziotinib 16 mgCohort 7: Poziotinib 8 mgCohort 7: Poziotinib 16 mg
DiarrhoeaGastrointestinal disorders94/11575/9070/8029/3339/4732/38111/12529/3522/2522/265/70/117/177/9
RashSkin and subcutaneous tissue disorders71/11562/9051/8017/3335/4724/3875/12524/3521/2516/262/71/17/176/9
StomatitisGastrointestinal disorders83/11560/9064/8024/3338/4726/3896/12523/3518/2513/265/70/110/176/9
ParonychiaInfections and infestations57/11538/9053/8021/3324/4717/3860/12516/3518/2512/261/70/13/172/9
FatigueGeneral disorders40/11529/9035/8018/3317/4715/3861/1258/3514/255/262/70/17/171/9
Decreased appetiteMetabolism and nutrition disorders43/11536/9033/8018/3315/477/3857/1257/356/257/261/70/16/173/9
NauseaGastrointestinal disorders56/11535/9033/8014/3313/477/3845/12511/357/257/261/70/16/170/9
PruritusSkin and subcutaneous tissue disorders30/11524/9022/8010/339/479/380/1258/3512/255/261/70/14/172/9
Dry skinSkin and subcutaneous tissue disorders34/11530/9034/8011/3317/4713/3838/12513/359/2511/262/70/14/171/9
AlopeciaSkin and subcutaneous tissue disorders35/11532/9030/8014/3318/470/3836/1257/357/256/261/70/13/171/9

Baseline characteristics

Safety Population included all participants who signed Informed Consent, enrolled, and received at least 1 dose of poziotinib.

Age, Continuous
Age, Continuous(years)Cohort 1: Poziotinib 16 mgCohort 2: Poziotinib 16 mgCohort 3: Poziotinib 16 mgCohort 4: Poziotinib 8 mgCohort 4: Poziotinib 16 mgCohort 5: Poziotinib 6 mgCohort 5: Poziotinib 8mgCohort 5: Poziotinib 10 mgCohort 5: Poziotinib 12 mgCohort 5: Poziotinib 16 mgCohort 6: Poziotinib 8 mgCohort 6: Poziotinib 16 mgCohort 7: Poziotinib 8 mgCohort 7: Poziotinib 16 mgTotal
Mean60.2 ± 12.3860.0 ± 11.6959.9 ± 10.4459.6 ± 13.8261.4 ± 12.1859.5 ± 14.6565.0 ± 9.9163.5 ± 10.8262.6 ± 9.9563.6 ± 8.3155.7 ± 10.9034.0 ± NA63.0 ± 11.3561.3 ± 6.1459.9 ± 5.59
Sex: Female, Male
Sex: Female, Male(Participants)Cohort 1: Poziotinib 16 mgCohort 2: Poziotinib 16 mgCohort 3: Poziotinib 16 mgCohort 4: Poziotinib 8 mgCohort 4: Poziotinib 16 mgCohort 5: Poziotinib 6 mgCohort 5: Poziotinib 8mgCohort 5: Poziotinib 10 mgCohort 5: Poziotinib 12 mgCohort 5: Poziotinib 16 mgCohort 6: Poziotinib 8 mgCohort 6: Poziotinib 16 mgCohort 7: Poziotinib 8 mgCohort 7: Poziotinib 16 mgTotal
Female7758451625238526191951154418
Male383235172215409672025230
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Cohort 1: Poziotinib 16 mgCohort 2: Poziotinib 16 mgCohort 3: Poziotinib 16 mgCohort 4: Poziotinib 8 mgCohort 4: Poziotinib 16 mgCohort 5: Poziotinib 6 mgCohort 5: Poziotinib 8mgCohort 5: Poziotinib 10 mgCohort 5: Poziotinib 12 mgCohort 5: Poziotinib 16 mgCohort 6: Poziotinib 8 mgCohort 6: Poziotinib 16 mgCohort 7: Poziotinib 8 mgCohort 7: Poziotinib 16 mgTotal
Hispanic or Latino5500332212000023
Not Hispanic or Latino110858033443512333242471179625
Unknown or Not Reported000000000000000
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Cohort 1: Poziotinib 16 mgCohort 2: Poziotinib 16 mgCohort 3: Poziotinib 16 mgCohort 4: Poziotinib 8 mgCohort 4: Poziotinib 16 mgCohort 5: Poziotinib 6 mgCohort 5: Poziotinib 8mgCohort 5: Poziotinib 10 mgCohort 5: Poziotinib 12 mgCohort 5: Poziotinib 16 mgCohort 6: Poziotinib 8 mgCohort 6: Poziotinib 16 mgCohort 7: Poziotinib 8 mgCohort 7: Poziotinib 16 mgTotal
American Indian or Alaska Native010000000000001
Asian18121547317202305088
Native Hawaiian or Other Pacific Islander101000010000003
Black or African American124113512330001146
White7770612735289027212141118481
Other7321226213000029
08

Study locations

63 sites
  • Mayo Clinic Hospital
    Phoenix, Arizona 85054, United States
  • Oncology Physician's Network Inc./OPN Healthcare
    Arcadia, California 91007, United States
  • City of Hope
    Duarte, California 91010, United States
  • UCSD -Moores Cancer Center
    La Jolla, California 92093, United States
  • Pacific Shores Medical Group
    Long Beach, California 90813, United States
  • Los Angeles Hematology Oncology Medical Group
    Los Angeles, California 90017, United States
  • USC/Norris Comprehensive Cancer Center
    Los Angeles, California 90033, United States
  • UC Davis Comprehensive Cancer Center
    Sacramento, California 95817, United States
  • UCSF Helen Diller Comprehensive Cancer Center at Mt Zion
    San Francisco, California 94115, United States
  • UCLA Hematology/Oncology
    Santa Monica, California 90404, United States
  • The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
    Torrance, California 90502, United States
  • Kaiser Permanente Medical Center
    Vallejo, California 94589, United States
  • Rocky Mountain Cancer Center
    Boulder, Colorado 80303, United States
  • Yale University, Yale Cancer Center Smilow Cancer Hospital at Yale
    New Haven, Connecticut 06510, United States
  • Georgetown University Medical Center
    Washington D.C., District of Columbia 20007, United States
  • Florida Hospital
    Orlando, Florida 32804, United States
  • H. Lee Moffitt Cancer Center & Research Institute
    Tampa, Florida 33612, United States
  • The Bond & Steele Clinic, P.A. dba Bond Clinic, P.A.
    Winter Haven, Florida 33881, United States
  • University Cancer & Blood Center, LLC
    Athens, Georgia 30607, United States
  • CTCA - Southeastern Regional Medical Center
    Newnan, Georgia 30265, United States
  • CTCA - Midwestern Regional Medical Center
    Zion, Illinois 60099, United States
  • Johns Hopkins Sidney Kimmel Comprehensive Cancer Center
    Baltimore, Maryland 21287, United States
  • Massachusetts General Hospital
    Boston, Massachusetts 02114, United States
  • Karmanos Cancer Institute
    Detroit, Michigan 48201, United States
  • Minnesota Oncology Hematology, P.A.
    Minneapolis, Minnesota 55404, United States
  • Mayo Clinic
    Rochester, Minnesota 55905, United States
  • Hattiesburg Clinic Hematology/Oncology
    Hattiesburg, Mississippi 39401, United States
  • Roswell Park Cancer Institute
    Buffalo, New York 14263, United States
  • NYU Langone Medical Center
    New York, New York 10016, United States
  • Weill Cornell Medical College
    New York, New York 10065, United States
  • North Shore Hematology Oncology Associates P.C. DBA NY Cancer and Blood Specialists
    Port Jefferson Station, New York 11776, United States
  • Montefiore Einstein Medical Center for Cancer Care
    The Bronx, New York 10461, United States
  • North Shore Hematology Oncology Associates DBA New York Cancer and Blood Specialists
    The Bronx, New York 10469, United States
  • Duke University Medical Center
    Durham, North Carolina 27710, United States
  • Cleveland Clinic
    Cleveland, Ohio 44195, United States
  • The Ohio State University
    Columbus, Ohio 43210, United States
  • Oklahoma Cancer Specialists and Research Institute, LLC
    Tulsa, Oklahoma 74146, United States
  • CTCA - Eastern Regional Medical Center
    Philadelphia, Pennsylvania 19124, United States
  • Baptist Cancer Center
    Memphis, Tennessee 38120, United States
  • Texas Oncology- Austin
    Austin, Texas 78745, United States
  • MD Anderson Cancer Center
    Houston, Texas 77030, United States
  • Virginia Cancer Specialists, PC
    Fairfax, Virginia 22031, United States
  • Seattle Cancer Care Alliance
    Seattle, Washington 98109, United States
  • Saint Luc University Hospital
    Brussels, Belgium
  • University Hospitals Leuven
    Leuven, Belgium
  • Ambroise Pare University Hospital Center
    Mons, Belgium
  • General Hospital Delta
    Roeselare, Belgium
  • Cross Cancer Institute
    Edmonton, Alberta T6G 1Z2, Canada
  • BC Cancer - Vancouver
    Vancouver, British Columbia V5Z 4E6, Canada
  • London Regional Cancer Program
    London, Ontario N6A 5W9, Canada
  • Princess Margaret Cancer Centre
    Toronto, Ontario M5G 2M9, Canada
  • Hopital Larrey, CHU Toulouse, Unité d'Oncologie des Voies Respiratoires
    Toulouse, France
  • Gustave Roussy Oncology Institute, Department of Medical Oncology
    Villejuif, France
  • Soroka Medical Center
    Beersheba, Israel
  • Rambam Healthcare Campus
    Haifa, Israel
  • Hadassah Medical Center
    Jerusalem, Israel
  • Rabin Medical Center
    Petah Tikva, Israel
  • National Cancer Institute, IRCCS, Department of Medical Oncology
    Milan, Italy
  • Santa Maria delle Croci Hospital
    Ravenna, Italy
  • National Cancer Institute Regina Elena, IRCCS, Operative Unit of Medical Oncology A 1
    Rome, Italy
  • Erasmus Medical Center
    Rotterdam, Netherlands
  • University Hospital Germans Trias i Pujol, Department of Medical Oncology
    Barcelona, Spain
  • University Hospital 12 de Octubre
    Madrid, Spain
09

References and documents

Publications

  • Le X, Cornelissen R, Garassino M, Clarke JM, Tchekmedyian N, Goldman JW, Leu SY, Bhat G, Lebel F, Heymach JV, Socinski MA. Poziotinib in Non-Small-Cell Lung Cancer Harboring HER2 Exon 20 Insertion Mutations After Prior Therapies: ZENITH20-2 Trial. J Clin Oncol. 2022 Mar 1;40(7):710-718. doi: 10.1200/JCO.21.01323. Epub 2021 Nov 29. PubMed 34843401 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Oct 2017 to primary completion in Apr 2023, 65 months.

Results were first posted in Jun 2026, 3 years 2 months after primary completion. A results delay was requested in Apr 2024.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 10, 2017
First posted
Oct 24, 2017
StartActual
Oct 11, 2017
Primary completionActual
Apr 3, 2023
CompletionActual
Apr 3, 2023
Results delay requested
Apr 1, 2024
Results first posted
Jun 12, 2026
Last update
Jun 12, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 12, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03318939
Responsible party
Sponsor
First posted
Oct 24, 2017
Start date
Oct 11, 2017
Primary completion
Apr 3, 2023
Completion
Apr 3, 2023
Results posted
Jun 12, 2026
Last update
Jun 12, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is terminated, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Poziotinib

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