ClinicalTrials.gg
TerminatedNCT03429101Updated Jan 15, 2021

A Study of Poziotinib in Combination With T-DM1 in HER2-Positive Breast Cancer

A Phase 1 interventional study of Poziotinib and T-DM1 in Breast Cancer, sponsored by Spectrum Pharmaceuticals, Inc. Terminated at 2 sites in United States. Open to female participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2021-01-15.

Sponsored by Spectrum Pharmaceuticals, Inc (part of Zydus Lifesciences Limited) · Phase 1, Interventional, and Treatment

Why this study was terminated
Dose limiting toxicity

From the registry’s dates

  • Primary completion was Apr 2019, 7 years 6 months ago, and no results have been posted to the registry.

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Phase
Phase 1
Study type
Interventional
Enrollment
6
Allocation
Not applicable
Ages
18 Years to 90 Years
Sex
Female
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 10 studies in Breast Neoplasms by Zydus Lifesciences Limited — none open to participants now, none under way, none of them phase 3. Breast Neoplasms · Zydus Lifesciences Limited.

Enrollment
9th of 10
6 · median 63
Started
2018
with 1 other
Phase 1
3 of 10
none open now
Registered
6th of 10
by date

Among the 10 studies in Breast Neoplasms by Zydus Lifesciences Limited, this one is the 9th largest by enrollment, is one of 2 that started in 2018, is one of 3 in phase 1, and was the 6th registered.

Breast Neoplasms

14,832 studies on the registry are indexed under Breast Neoplasms; 3,320 are open to participants now.

Browse Breast Neoplasms studies →

Open to participants now

None of the 10 studies in Breast Neoplasms by Zydus Lifesciences Limited is open now. The open studies under Breast Neoplasms, anywhere →

Who these studies take

Of the 2,399 Breast Neoplasms studies recruiting now, 1,570 (65%) set no upper age limit and 592 (25%) stop at 75 or younger; 103 take children under 18; 215 take healthy volunteers.

This study: 18 Years to 90 Years · female · no healthy volunteers.

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Download CSVNarrow it in search →With an account: the 10 studies in Breast Neoplasms by Zydus Lifesciences Limited as a file.
02

Study summary

This is a Phase 1b, open-label, multicenter study to determine the Maximum Tolerated Dose (MTD) or Maximum Administered Dose (MAD) of poziotinib when administered with standard dosing of T-DM1 (3.6 mg/kg IV on Day 1 of each 21-day cycle) in women with advanced or metastatic HER2+ breast cancer. The poziotinib dose identified in Part 1 of the study will be used in combination with standard dose of T-DM1 in Part 2 of the study to confirm the poziotinib dose and evaluate the preliminary efficacy of the combination therapy.

Read the detailed description

In Part 1, the dose of poziotinib, in combination with the standard dose of T-DM1 (3.6 mg/kg IV) on Day 1 of each cycle will be determined using a "3+3" design with up to 3 dose levels tested beginning with 8 mg/day.

Poziotinib dose escalation/de-escalation for the next dose cohort will proceed based on the occurrence of dose-limiting toxicities (DLTs) during Cycle 1 of the dose cohort. Patients in the dose cohort, if not discontinued, will continue treatment until discontinuation.

In Part 2 of the study, approximately 10 patients will be treated at the MTD/MAD to confirm dose for safety of the combination and to evaluate preliminary efficacy. Treatment for all patients will continue until disease progression, unacceptable toxicity, or continuation of study treatment is not in the best interest of the patient.

The Screening period (Day -30 to Day -1) will last up to 30 days prior to Cycle 1, Day 1.

During each 21-day cycle, eligible patients will receive poziotinib at the assigned dose, orally, once daily. T-DM1 3.6 mg/kg IV will be administered on Day 1 of each treatment cycle.

All treated patients will be followed for response until disease progression or the start of new treatment and then for survival (3 year study duration).

03

Conditions studied

  • Breast Cancer

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Keywords

  • Poziotinib
  • HER2 Positive
  • T-DM1
04

Who can participate

Ages eligible
18 Years to 90 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patient must be female, at least 18 years of age, but not older than 90 years, with advanced or + breast cancer and a of more than 6 months
  • Patient must have confirmed HER2 overexpression or gene-amplified tumor via immunohistochemistry [IHC] with IHC 3+ or IHC 2+ with confirmatory fluorescence in situ hybridization [FISH]+ or [ISH]+
  • Patients must have had at least 1 line of anti-HER2 directed therapy either in the metastatic or early-stage disease setting
  • (ECOG) performance status 0 or 1

Exclusion criteria

Exclusion Criteria:

  • Patient has had previous treatment with poziotinib.
  • Patient has received anticancer chemotherapy, TKIs, biologics, immunotherapy, radiotherapy, or treatment within 15 days. (There is no washout for hormonal therapy for breast cancer).
  • Patient has a less than 3 years due to other .
  • Patient is pregnant or breast-feeding.
Terms in these criteria, in plain language(6)

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.

Metastases

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

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.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

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.

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 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
6 participants (actual)

Study arms

  • Experimental
    Poziotinib

    * Part 1: Dose Finding The MTD/MAD of poziotinib in combination with the standard dose of T-DM1 will be determined by using a "3+3" design. At least 3 patients may be enrolled in each cohort before a decision is made to proceed to the next cohort. * Part 2: MTD/MAD Expansion An additional 10 patients will be treated at the dose identified during Part 1 to further evaluate the combination at the MTD or the MAD.

    Drug: Poziotinib · Drug: T-DM1

Interventions

  • Poziotinib is a tablet for oral administration.

  • DrugT-DM1

    T-DM1 (ado-trastuzumab emtansine) is a HER2-targeted therapy for I.V. administration.

    Also known as: ado-trastuzumab emtansine

06

What researchers measure

Primary outcomes

  1. Objective Response Rate (ORR)

    Evaluate the Objective Response Rate (ORR) in patients treated with daily poziotinib in combination with T-DM1 (every 3 weeks) in women with advanced or metastatic HER2 positive breast cancer.

    Time frame: 3 Years

Secondary outcomes

  1. Disease Control Rate (DCR)

    Evaluate the Disease Control Rate (DCR) at 9, 18, and 27 weeks in patients treated at the MTD/MAD.

    Time frame: 27 weeks

  2. Progression-free Survival (PFS)

    Evaluate Progression-free Survival (PFS) in patients treated with MTD/MAD.

    Time frame: 3 years

07

Study locations

2 sites
  • Pacific Cancer Medical Center, Inc.
    Anaheim, California 92801, United States
  • Los Angeles Hematology Oncology Medical Group
    Glendale, California 91204, United States
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jul 2018 to primary completion in Apr 2019, 9 months.

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

Registered
Jan 18, 2018
First posted
Feb 12, 2018
StartActual
Jul 13, 2018
Primary completionActual
Apr 17, 2019
CompletionActual
Apr 17, 2019
Last update
Jan 15, 2021
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 Jan 15, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03429101
Responsible party
Sponsor
First posted
Feb 12, 2018
Start date
Jul 13, 2018
Primary completion
Apr 17, 2019
Completion
Apr 17, 2019
Last update
Jan 15, 2021

Oversight

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

Not currently enrolling

This study is terminated, as verified in Jan 2021. You cannot join it, but the record below documents what was studied.

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Studies of the drug tested here: Poziotinib

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