This is an open-label extension study (Extension Study) designed to allow patients to continue to receive poziotinib treatment who have had previous exposure to poziotinib and/or are still receiving clinical benefit from treatment, as judged by the Investigator or treating physician. Patients must begin treatment in this study within 28 days after their last dose of poziotinib. This extension protocol is intended to provide clinical benefit of poziotinib to patients who are responding to treatment. The additional treatment is optional and voluntary.
Patients who wish to participate in the extension study must provide written Informed Consent. Treatment will begin after completion of the End of Study (EOS) or End of Treatment (EOT) visit of the Original Study. The assessments obtained at the EOS or EOT visit will serve as Baseline data for the extension study. Patients will continue to receive poziotinib treatment at the last dose received or at the standard starting dose of 16 milligrams (mg) poziotinib, once daily. Patients may receive treatment as long as the patient is deriving clinical benefit, as judged by the investigator or treating physician (case-by-case decision with approval of Spectrum), death, withdrawal of consent, unacceptable toxicity, lost to follow-up, or poziotinib receives commercial approval in their country of residence or development is terminated by the Sponsor, whichever occurs first. There will be an EOS Visit 35 (±5) days after the last dose of poziotinib.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
7
Poziotinib
Pacific Shores Medical Group
Long Beach, California, United States
Hattiesburg Clinic Hematology Oncology
Hattiesburg, Mississippi, United States
Laura and Isaac Perlmutter Cancer Center at NYU Langone
New York, New York, United States
UPMC
Pittsburgh, Pennsylvania, United States
UT MD Anderson Cancer Center
Houston, Texas, United States
Number of Participants With Adverse Events (AEs)
An AE is any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and that does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product, whether or not related to the medicinal (investigational) product.
Time frame: Up to 18 months
Overall Response Rate (ORR)
ORR was defined as the percentage of participants with confirmed complete response (CR) and partial response (PR) as assessed by the investigator using local radiology evaluation according to Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v1.1). CR is defined as the disappearance of all target and non-target lesions. Any pathological lymph nodes must have a reduction in the short axis to \<10 millimeters (mm). PR is defined as at least a 30% decrease in the sum of diameters of all target lesions, taking as reference the baseline sum of diameters, in the absence of CR.
Time frame: Up to 17 months
Disease Control Rate (DCR)
DCR is defined as percentage of participants with best response of CR, PR, and stable disease (SD) from the first dose of poziotinib to the end of study. CR is defined as disappearance of all target and non-target lesions. Any pathological lymph nodes must have reduction in short axis to \<10 mm. PR is defined as at least a 30% decrease in the sum of diameters of all target lesions, taking as reference the baseline sum of diameters, in the absence of CR. SD is defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD), taking as reference the smallest sum diameters while on study.
Time frame: Up to 17 months
Duration of Response (DOR)
Duration of response was defined as the time from the date that measurement criteria are first met for CR or PR until the first subsequent date that progressive disease or death is documented. CR is defined as the disappearance of all target and non-target lesions. Any pathological lymph nodes must have a reduction in the short axis to \<10 mm. PR is defined as at least a 30% decrease in the sum of diameters of all target lesions, taking as reference the baseline sum of diameters, in the absence of CR. Disease progression is defined as ≥20% increase in the sum of diameters of target lesions, unequivocal progression in non-target lesions, and/or appearance of new lesions.
Time frame: Up to 17 months
Progression Free Survival (PFS)
PFS was the duration of time from first administration of study treatment to date of first documented disease progression or death from any cause. Per RECIST v1.1 for target lesions, PD was defined as ≥20% increase in the sum of diameters of target lesions, unequivocal progression in non-target lesions, and/or appearance of new lesions.
Time frame: Up to 17 months
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