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Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT04510285
Other study ID # 20-158
Secondary ID
Status Terminated
Phase Phase 2
First received
Last updated
Start date August 10, 2020
Est. completion date December 30, 2022

Study information

Verified date January 2023
Source Memorial Sloan Kettering Cancer Center
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to find out whether treatment with trastuzumab combined with pembrolizumab will improve the clearance of tumor DNA from participants' bodies after surgery.


Recruitment information / eligibility

Status Terminated
Enrollment 1
Est. completion date December 30, 2022
Est. primary completion date December 30, 2022
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Age 18 years or older. - ECOG performance status 0-2. - Sign informed consent within 8 months after curative surgery and completion of standard of care perioperative and/or adjuvant therapy. - HER2+ esophageal, GEJ, or gastric adenocarcinoma biopsy or resection specimen as defined by local HER2 IHC3+ or IHC 2+/FISH>2.0 expression. - Must have genetic testing of DNA from primary tumor for somatic genomic alterations across a minimum of 50 genes. - Must have undergone a complete curative surgical resection (R0). - Must have completed standard of care (SOC) surgery, neoadjuvant or adjuvant therapy - CtDNA will be tested at a minimum of four weeks after completion of surgery and standard perioperative and/or adjuvant therapy. To be eligible for trastuzumab/pembrolizumab or trastuzumab therapy, the patients must have positive ctDNA (as defined in section 7.0) within 8 months after completion of appropriate standard of care therapy (surgery, chemotherapy, radiation as appropriate). For all patients, if the initial ctDNA has a negative result, ctDNA can be re-tested 4 weeks later, within 9 months of completion of standard therapy. - Demonstrate adequate organ function as defined in Table 1. Hematological Absolute neutrophil Count (ANC): = 1,500 /mcL Platelets: = 100,000 /mcL Hemoglobin: = 9 g/dL Renal Serum creatinine = 1.5 X upper limit of normal (ULN) Hepatic Serum total bilirubin = 1.5 X ULN OR Direct bilirubin = ULN for subjects with total bilirubin levels > 1.5 ULN. Except patients with Gilbert's disease (= 3 x ULN) AST and ALT = 2.5 X ULN Albumin = 3 mg/dL Exclusion Criteria: - Patients who have not recovered from serious adverse events (as determined by treating MD) related to surgery. - Presence of metastatic or recurrent disease. - Had R1 (microscopic residual tumor) or R2 resection (macroscopic residual tumor at resection margin). - Left ventricular ejection fraction <50% within 1 month of screening by MUGA or echocardiogram. - Is currently participating and receiving study therapy or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the first dose of treatment. - Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of trial treatment. - Patients who have received acute, low dose, systemic immunosuppressant medications (e.g., dexamethasone containing antiemetic regimen or steroids as CT scan contrast premedication) may be enrolled. - The use of inhaled corticosteroids and mineralocorticoids (e.g., fludrocortisone) for patients with orthostatic hypotension or adrenocortical insufficiency is allowed. - Has a known history of active TB (Bacillus tuberculosis) - Hypersensitivity to pembrolizumab or any of its excipients. - Has had prior chemotherapy, targeted small molecule therapy, or radiation therapy within 2 weeks prior to study Day 1 or who has not recovered (i.e., = Grade 1 or at baseline) from adverse events due to a previously administered agent. ° Note: If subject received major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting therapy. - Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis - Has known history of, or any evidence of active, non-infectious pneumonitis. - Has an active infection requiring systemic therapy. - Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator. - Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial. - Is pregnant or breastfeeding, or expecting to conceive or father children within the projected duration of the trial, starting with the pre-screening or screening visit through 120 days after the last dose of trial treatment. - Has received prior therapy with an anti-PD-1, anti-PD-L1, or anti-CTLA-4 agent. - Active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease; systemic lupus erythematosus; Wegener syndrome [granulomatosis with polyangiitis]; myasthenia gravis; Graves' disease; rheumatoid arthritis, hypophysitis, uveitis) within the past 3 years prior to the start of treatment. The following are exceptions to this criterion: - Subjects with vitiligo or alopecia - Subjects with hypothyroidism (e.g., following Hashimoto syndrome) stable on hormone replacement or psoriasis not requiring systemic treatment. - Has a known history of Human Immunodeficiency Virus (HIV) (HIV 1/2 antibodies). - Has known active Hepatitis B (e.g., HBsAg reactive) or Hepatitis C (e.g., HCV RNA [qualitative] is detected). - Has received a live vaccine within 30 days of planned start of study therapy. ° Note: Seasonal influenza vaccines for injection are generally inactivated flu vaccines and are allowed; however intranasal influenza vaccines (e.g., Flu-Mist®) are live attenuated vaccines, and are not allowed. - Is unwilling to give written informed consent, unwilling to participate, or unable to comply with the protocol for the duration of the study.

Study Design


Intervention

Drug:
Trastuzumab
Trastuzumab (8mg/kg loading dose; 6mg/kg maintenance) will be administered on day 1 of each 3-week dosing cycle (21 days).
Pembrolizumab
Pembrolizumab 200 mg IV will be administered on day 1 of each 3-week dosing cycle (21 days).

Locations

Country Name City State
United States Memorial Sloan Kettering Basking Ridge (Limited Protocol Activities) Basking Ridge New Jersey
United States Memorial Sloan Kettering Commack (Limited Protocol Activities) Commack New York
United States Memorial Sloan Kettering Westchester (Limited Protocol Activities) Harrison New York
United States Memorial Sloan Kettering Monmouth (Limited Protocol Activities) Middletown New Jersey
United States Memorial Sloan Kettering Bergen (Limited Protocol Activities) Montvale New Jersey
United States Memorial Sloan Kettering Cancer Center (All Protocol Activities) New York New York
United States Memorial Sloan Kettering Nassau (Limited Protocol Activities) Uniondale New York

Sponsors (1)

Lead Sponsor Collaborator
Memorial Sloan Kettering Cancer Center

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Rate of ctDNA Clearance at 6 Months The primary endpoint of the study is the proportion of patients with ctDNA clearance at 6 months with trastuzumab/pembrolizumab or trastuzumab/placebo in patients with HER2+ esophagogastric cancer with persistent ctDNA despite curative surgery and standard perioperative/adjuvant therapy.
CtDNA clearance is the conversion of detectable to undetectable ctDNA
6 months
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