Advanced Gastric Cancer Clinical Trial
— PF299804-AGCOfficial title:
A Phase II Open Label Trial of PF-00299804 Monotherapy in Patients With HER-2 Positive Advance Gastric Cancer After Failure of At Least One Prior Chemotherapy Regimen
In case of gastric cancer, the incidence of HER-2 positivity (2+, 3+ on IHC and/or FISH (+))
is reported as similar as that of breast cancer, that is 22% of all cases. A recent ToGA
Trial, phase III trial comparing trastuzumab combined with chemotherapy
(fluoropyrimidine+cisplatin) versus chemotherapy alone in chemotherapy-naïve HER-2 (+)
gastric cancer shows the significant benefit of using trastuzumab in terms of overall
survival and progression-free survival. It provides the clinical evidence of HER-2 as a
reasonable and potential therapeutic target in gastric cancer.
Nowadays, lapatinib, HER-1 and HER-2 dual inhibitor, is also testing under the clinical
trial in gastric cancer.
In preclinical study, PF-00299804 is highly active in HER-2 amplified gastric cancer cell
lines.(SNU preclinical data) So, we plan this phase II trial of PF-00299804 monotherapy in
patients with HER-2 positive advance gastric cancer after failure of at least one
chemotherapy regimen.
Status | Completed |
Enrollment | 28 |
Est. completion date | September 2012 |
Est. primary completion date | July 2011 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - Age > 18 years - A patient who is able to walk and should have ECOG performance status of 0-2. - Histologically confirmed adenocarcinoma of the stomach or gastro-oesophageal junction with inoperable locally advanced or recurrent and/or metastatic disease, not amenable to curative therapy. - HER2 positive tumour (primary tumour or metastasis defined as 1) 3+ on IHC and/or 2) FISH (+) - Failure to at least one chemotherapy regimen * trastuzumab or lapatinib-pretreated patient is eligible - Measurable or non-measurable-evaluable disease according to the Response Evaluation Criteria in Solid Tumors (RECIST) - Adequate bone marrow function, including: - Adequate renal function, including: - Adequate liver function, including: - Adequate Cardiac Function, including: 1. 12-Lead electrocardiogram (ECG) with normal tracing or non-clinically significant changes that do not require medical intervention; 2. QTc interval 470 msec and without history of Torsades de Pointes or other symptomatic QTc abnormality; 3. LVEF (by MUGA or echocardiogram) of =50%. - Brain metastasis allowed if any necessary treatment has been completed and the patient is radiologically and neurologically stable off corticosteroids at least 2 weeks prior to enrollment - A patient with the willingness to comply with the study protocol during the study period and capable of complying with it. - A patient who signed the informed consent prior to the participation of the study and who understands that he/she has a right to withdrawal from participation in the study at any time without any disadvantages. Exclusion Criteria: - Patients with known active brain metastases or any leptomeningeal metastases; a. Patients with previously diagnosed brain metastases for which treatment (radiation or surgery) is recommended in judgment of investigator are eligible if they have completed their CNS treatment and have recovered from the acute effects of radiation therapy or surgery prior to the start of study medication, have discontinued corticosteroid treatment for these metastases for at least 2 weeks and are neurologically stable. - Radiotherapy (other than palliative radiotherapy to lesions that will not be followed for tumor assessment on this study, ie, non-target lesions), biological or investigational agents within 2 weeks of baseline disease assessments - Any surgery (not including minor procedures) within 4 weeks of baseline disease assessments; or not fully recovered from any side effects of previous procedures; - Any clinically significant gastrointestinal abnormalities, which may impair intake, transit or absorption of the study drug, such as the inability to take oral medication in tablet form; - Current enrollment in another therapeutic clinical trial; - Any psychiatric or cognitive disorder that would limit the understanding or rendering of informed consent and/or compromise compliance with the requirements of this protocol - Patients with known interstitial lung disease; - Uncontrolled or significant cardiovascular disease - Prior malignancy: Patients will not be eligible if they have evidence of other malignancy (other than non-melanoma skin cancer or in situ cervical cancer, or localized and presumed cured prostate cancer with PSA < ULN) within the last 5 years. - Organ allogenic transplantation requiring immunosuppressive therapy. - A patient who developed uncontrolled serious infection or other uncontrolled serious concomitant diseases. |
Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
Korea, Republic of | Seoul National University Hospital | Seoul |
Lead Sponsor | Collaborator |
---|---|
Seoul National University Hospital | Pfizer |
Korea, Republic of,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | progression-free survival at 4-months (PFS4mo) | PFS is defined as the interval from the date of enrollment to the date of disease progression or death due to any cause, whichever occurs first. PFS4m is defined as the proportion of patients alive and progression-free at 4 months relative to all enrolled patients. | 10 months | No |
Secondary | Overall Response Rate | Overall Response Rate (BOR) per RECIST Confirmed responses are defined as those that persist on a follow-up imaging assessment 4 weeks after the initial objective documentation of response. | 6 months | No |
Secondary | Overall Survival (OS) | Overall Survival (OS), defined as the time from enrollment to the date of death due to any cause. | 2 years | No |
Secondary | toxicity | Overall Safety Profile, as characterized by type, frequency, severity as graded by NCI Common Toxicity Criteria for Adverse Events version 3.0 (NCI CTCAEv3.0), timing and relationship to treatment, and laboratory abnormalities observed. | 12 months | Yes |
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