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Breast CancerPhase 1NCT03429101

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

A Phase 1 study testing Poziotinib and T-DM1 in people with Breast Cancer, run by Spectrum Pharmaceuticals, Inc at 2 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial 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. Read more about this study

Who is it for?
Ages 18 to 90 years, women only
Conditions the study is for
Breast Cancer
What is being tested?
Poziotinib and T-DM1
Could I receive a placebo?
No, everyone receives an active treatment
How many people
6 participants
Where
2 sitesUnited States
Study dates
13 Jul 2018to 17 Apr 2019
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 90 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient must be female, at least 18 years of age, but not older than 90 years, with advanced or metastatic HER2+ breast cancer and a life expectancy 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
  • Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1

Who cannot join

  • Patient has had previous treatment with poziotinib.
  • Patient has received anticancer chemotherapy, TKIs, biologics, immunotherapy, radiotherapy, or investigational treatment within 15 days. (There is no washout for hormonal therapy for breast cancer).
  • Patient has a life expectancy less than 3 years due to other malignancies.
  • Patient is pregnant or breast-feeding.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Pacific Cancer Medical Center, Inc.

    Anaheim, California, 92801

  • Los Angeles Hematology Oncology Medical Group

    Glendale, California, 91204

Other trials in United States

About this study

Official title: A Phase 1b Study of Poziotinib in Combination With T-DM1 in Women With Advanced or Metastatic HER2-Positive Breast Cancer

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).

Conditions
Breast Cancer
Being tested
Poziotinib, T-DM1
Keywords
Poziotinib, HER2 Positive, T-DM1
Medical subject headings
Breast Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PoziotinibDrug

    Poziotinib is a tablet for oral administration.

  • T-DM1Drug

    Also called ado-trastuzumab emtansine

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

Study groups in NCT03429101
Study groupRoleWhat they receive
PoziotinibExperimental* 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.
Receives: Drug: Poziotinib; Drug: T-DM1

What is being measured

The primary outcome is the main question the study is designed to answer.

  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.

    Measured: 3 Years

Secondary outcomes (2)
  1. Disease Control Rate (DCR)

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

    Measured: 27 weeks

  2. Progression-free Survival (PFS)

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

    Measured: 3 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Feb 2018
  2. Study start13 Jul 2018
  3. Primary completion17 Apr 2019
  4. Study completion17 Apr 2019

Why it stopped: Dose limiting toxicity

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
* Part 1: Dose Finding To determine the MTD/MAD of poziotinib in combination with the standard dose of T-DM1 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 of the study to further evaluate the safety and efficacy.
Masking
None (open label)
Enrolment
6 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03429101
Sponsor's protocol ID
SPI-POZ-101
Status last verified
Jan 2021
First submitted
18 Jan 2018
Last updated
15 Jan 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Poziotinib and T-DM1 in people with Breast Cancer, run by Spectrum Pharmaceuticals, Inc at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 15 Jan 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Dose limiting toxicity). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Objective Response Rate (ORR) (time frame: 3 Years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Jan 2021.

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