Abemaciclib and Pembrolizumab in Locally Advanced Unresectable or Metastatic Gastroesophageal Adenocarcinoma: Big Ten Cancer Research Consortium BTCRC-GI18-149

• ClinicalTrials.gov Identifier: NCT03997448
• Recruitment Status: Terminated
• First Posted: June 25, 2019
• Last Update Posted: January 23, 2023
• Sponsor: Nataliya Uboha
• Collaborator: Eli Lilly and Company
• Information provided by (Responsible Party): Nataliya Uboha, Big Ten Cancer Research Consortium

Study Description

Brief Summary:

This study will test the combination of abemaciclib with pembrolizumab in patients with gastric, gastroesophageal junction, or esophageal adenocarcinoma that is metastatic or cannot be surgically removed, and who have progressed on, or were unable to tolerate, at least 2 earlier courses of treatment for their advanced disease.

Condition or disease	Intervention/treatment	Phase
Gastroesophageal Cancer; Adenocarcinoma	Drug: Pembrolizumab; Drug: Abemaciclib	Phase 2

Detailed Description:

This is a Phase II non-randomized, single arm, open label study of abemaciclib in combination with pembrolizumab in patients with unresectable or metastatic gastric, gastroesophageal junction, or esophageal adenocarcinoma who have received at least two lines of prior therapy. Treatment will be administered in 21-day cycles. Pembrolizumab will be administered intravenously (IV) at a dose of 200 mg on day 1 of each cycle. Abemaciclib will be taken orally twice a day on each day of the cycle, 150 mg per dose. Treatment will continue until disease progression or development of unacceptable toxicities.

Study Design

• Study Type: Interventional (Clinical Trial)
• Actual Enrollment: 3 participants
• Allocation: N/A
• Intervention Model: Single Group Assignment
• Masking: None (Open Label)
• Primary Purpose: Treatment
• Official Title: Phase II Study of the Combination of Abemaciclib and Pembrolizumab in Locally Advanced Unresectable or Metastatic Gastroesophageal Adenocarcinoma: Big Ten Cancer Research Consortium BTCRC-GI18-149
• Actual Study Start Date: August 26, 2019
• Actual Primary Completion Date: February 14, 2020
• Actual Study Completion Date: May 31, 2022

Arms and Interventions

Arm	Intervention/treatment
Experimental: Abemaciclib and Pembrolizumab; Abemaciclib 150mg days 1-21, and Pembrolizumab 200mg IV, Day 1	Drug: Pembrolizumab; Pembrolizumab 200mg IV; Drug: Abemaciclib; Abemiciclib 150mg PO

Outcome Measures

Primary Outcome Measures :

1. Progression-Free Survival [ Time Frame: 24 months ]
   PFS is defined as the time of treatment initiation until the criteria for disease progression per RECIST1.1 are met or until the date of a death event (any cause).

Secondary Outcome Measures :

1. Progression-Free Survival Rate at 6 Months [ Time Frame: 6 Months ]
   PFS is defined as the percent of patients without a progression (or death event) at month 6 after treatment initiation.
2. Disease Control Rate [ Time Frame: 24 Months ]
   DCR is defined as percent of patients with stable disease, partial response and complete response after treatment initiation per RECIST 1.1 and irRECIST.
3. Overall Survival [ Time Frame: 24 Months ]
   OS is defined as the time of treatment initiation until death from any cause.
4. Objective Response Rate [ Time Frame: 24 Months ]
   ORR as measured as percent of patients who achieved objective response per RECIST 1.1 and irRECIST criteria while on treatment
5. Summarize Adverse Events [ Time Frame: 24 Months ]
   All adverse events summarized and assessed by NCI CTCAE version 5

Eligibility Criteria

• Ages Eligible for Study: 18 Years and older (Adult, Older Adult)
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: No

Criteria

Inclusion Criteria:

• Patients with histologically confirmed metastatic or locally advanced unresectable gastric, gastroesophageal junction or esophageal adenocarcinoma.
• Be willing and able to provide written informed consent for the trial.
• Age >= 18 years at the time of consent.
• Prior treatment with at least two lines of systemic therapy for advanced disease. Patients who have received neoadjuvant or adjuvant therapy or definitive chemoradiation and had recurrence during or within 6 months of completion of all treatments may count adjuvant therapy as one chemotherapy line.
• Presence of measurable disease based on RECIST 1.1 as determined by local site investigator/radiology assessment.
• ECOG PS 0-1.
• Patients must have discontinued all previous treatments for cancer (including cytotoxic chemotherapy, molecularly targeted therapy, radiotherapy, and investigational therapy).
• Patients who received chemotherapy must have recovered (CTCAE Grade ≤1) from the acute effects of chemotherapy except for residual alopecia or Grade 2 peripheral neuropathy. A washout period of at least 21 days is required between last systemic therapy dose and treatment initiation per protocol.
• A washout period of at least 14 days is required between end of radiotherapy and treatment initiation.
• The patient is able to swallow oral medications.
• Demonstrate adequate organ function as defined in the table in the protocol.
• Females of childbearing potential must have a negative serum pregnancy test within 7 days prior to registration. NOTE: Females are considered of child bearing potential unless they are surgically sterile (have undergone a hysterectomy, bilateral tubal ligation, or bilateral oophorectomy) or they are naturally postmenopausal for at least 12 consecutive months.
• Females of childbearing potential must be willing to abstain from heterosexual activity or to use 2 forms of effective methods of contraception from the time of informed consent until 60 days after treatment discontinuation. The two contraception methods can be comprised of two barrier methods, or a barrier method plus a hormonal method.
• Men who are not surgically sterile (vasectomy) must agree to use an acceptable method of contraception. Male subjects with female sexual partners who are pregnant, possibly pregnant, or who could become pregnant during the study must agree to use condoms from the first dose of study drug through at least 60 days after the last dose of study drug. Total abstinence for the same time period is an acceptable alternative.
• As determined by the enrolling physician or protocol designee, ability of the subject to understand and comply with study procedures for the entire length of the study.
• Provided written informed consent and HIPAA authorization for release of personal health information, approved by an Institutional Review Board (IRB). NOTE: HIPAA authorization may be included in the informed consent or obtained separately.

Exclusion Criteria:

• Active autoimmune disease that has required systemic treatment in past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment.
• History of prior therapy with CDK4 or CDK6 inhibitors or prior immune checkpoint inhibitors.
• Patients with known microsatellite instability will be excluded.
• 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. The use of physiologic doses of corticosteroids may be approved after consultation with the study PI.
• Serious preexisting medical condition(s) that would preclude participation in this study (for example, interstitial lung disease, severe dyspnea at rest or requiring oxygen therapy, history of major surgical resection involving the stomach or small bowel, or a preexisting chronic condition resulting in baseline Grade 2 or higher diarrhea).
• Symptomatic central nervous system metastasis. Screening of asymptomatic patients is not required for enrollment.
• Personal history of any of the following conditions: syncope of cardiovascular etiology, ventricular arrhythmia of pathological origin (including, but not limited to, ventricular tachycardia and ventricular fibrillation), or sudden cardiac arrest.
• Known additional malignancy that progressed or required active treatment within the last 2 years. Exceptions include curatively treated basal cell and squamous cell carcinoma of the skin, curatively resected in situ cervical and/or breast cancers, in situ or intramucosal pharyngeal cancer, and Gleason 6 prostate cancer with PSA <10.
• Patients who have received a live vaccine within 30 days of planned start of pembrolizumab.

Note: The killed virus vaccines used for seasonal influenza vaccines for injection are allowed; however intranasal influenza vaccines (e.g., FluMist®) are live attenuated vaccines, and are not allowed.

• History of (non-infectious) pneumonitis that required steroids or current pneumonitis.
• Active infection requiring systemic therapy.
• Patients who are pregnant or breastfeeding or expecting to conceive or father children within the projected duration of the trial, starting with the screening visit through 60 days after the last dose of pembrolizumab or abemaciclib. (NOTE: breast milk cannot be stored for future use while the mother is being treated on study.)

Contacts and Locations

Locations

United States, Indiana

Indiana University Melvin and Bren Simon Cancer Center

Indianapolis, Indiana, United States, 46202

United States, Iowa

Univerisy of Iowa Hospital and Clinics

Iowa City, Iowa, United States, 52242

United States, New Jersey

Rutgers Cancer Institute of NewJjersey

New Brunswick, New Jersey, United States, 08903

United States, Wisconsin

University of Wisconsin

Madison, Wisconsin, United States, 53705

Sponsors and Collaborators

Nataliya Uboha

Eli Lilly and Company

Investigators

• Principal Investigator: Nataliya Uboha, MD, PhD; University of Wisconsin, Madison

More Information

• Responsible Party: Nataliya Uboha, Faculty, University of Wisconsin School of Medicine and Public Health, Big Ten Cancer Research Consortium
• ClinicalTrials.gov Identifier: NCT03997448
• Other Study ID Numbers: BTCRC-GI18-149
• First Posted: June 25, 2019
• Last Update Posted: January 23, 2023
• Last Verified: January 2023

• Studies a U.S. FDA-regulated Drug Product: Yes
• Studies a U.S. FDA-regulated Device Product: No
• Product Manufactured in and Exported from the U.S.: No

Additional relevant MeSH terms:

Adenocarcinoma; Carcinoma; Neoplasms, Glandular and Epithelial; Neoplasms by Histologic Type; Neoplasms; Pembrolizumab; Antineoplastic Agents, Immunological; Antineoplastic Agents