RECRUITING

Phase 3 Study to Evaluate the Efficacy and Safety of HER2/neu Peptide GLSI-100 (GP2 + GM-CSF) in HER2/neu Positive Subjects

Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

This is a prospective, randomized, double-blinded, placebo-controlled, multi-center, Phase 3 study of GLSI-100 immunotherapy in HLA-A\*02 positive and HER2/neu positive subjects who are at high risk for disease recurrence and have completed both neoadjuvant and postoperative adjuvant standard of care therapy. Treatment consists of 6 intradermal injections, Primary Immunization Series (PIS), over the first 6 months of treatment and 5 booster intradermal injections spaced 6 months apart. A third open-label arm will explore GLSI-100 immunotherapy in non-HLA-A\*02 positive and HER2/neu positive subjects.

Official Title

A Randomized, Multicenter, Placebo-controlled, Phase 3 Study to Evaluate the Efficacy and Safety of HER2/neu Peptide GLSI-100 (GP2 + GM-CSF) in HER2/neu Positive Subjects with Residual Disease or High-Risk PCR After Both Neoadjuvant and Postoperative Adjuvant Trastuzumab-based Therapy (FLAMINGO-01)

Quick Facts

Study Start:2022-08-11
Study Completion:2026-12
Study Type:Not specified
Phase:Not Applicable
Enrollment:Not specified
Status:RECRUITING

Study ID

NCT05232916

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:18 Years to 100 Years
Sexes Eligible for Study:ALL
Accepts Healthy Volunteers:No
Standard Ages:ADULT, OLDER_ADULT
Inclusion CriteriaExclusion Criteria
  1. * HLA-A\*02-positive, unless being enrolled in the third non-HLA-A\*02 arm
  2. * Histologically confirmed diagnosis of HER2/neu positive primary breast cancer for all tumors biopsied (multifocal, multicentric, or synchronous contralateral disease)
  3. * Completion of both neoadjuvant and adjuvant trastuzumab-based standard of care breast cancer therapy
  4. * Stage I, II, or III at presentation with pathologic evidence of residual invasive carcinoma in the breast or axillary lymph nodes (residual disease) at surgery following completion of neoadjuvant therapy -OR- Stage III at presentation with pathologic complete response (pCR) at surgery following completion of neoadjuvant therapy
  5. * The subject can begin study therapy within one year of completion of adjuvant trastuzumab-based therapy and any other standard therapies, but, study therapy can be administered concurrently with endocrine therapy.
  6. * No clinical evidence of residual or persistent breast cancer per treating physician assessment
  7. * ECOG 0-2
  8. * Adequate organ function
  9. * Negative pregnancy test or evidence of post-menopausal status
  10. * If of childbearing potential, willing to use a form of highly effective contraception
  11. * Subject must both reside in and have been treated for their cancer in the country in which the clinical site is located.
  1. * Stage IV cancer or metastatic breast cancer at any time
  2. * Inflammatory breast cancer
  3. * Receiving other investigational agents
  4. * Receiving chemotherapy
  5. * Requiring long-term systemic treatment with corticosteroids or other immunosuppressive therapy
  6. * History of immunodeficiency or active autoimmune disease
  7. * A history of serious allergic reactions, including anaphylaxis, to human granulocyte-macrophage colony-stimulating factors such as sargramostim, yeast-derived products, or any component of the investigational product
  8. * Other malignancies except adequately treated in situ carcinoma of the cervix or basal cell or squamous cell carcinoma of the skin
  9. * Active infection
  10. * Known HIV infection with a detectable viral load within 6 months of the anticipated start of treatment. Note: Subjects on effective antiretroviral therapy with an undetectable viral load within 6 months of the anticipated start of treatment are eligible for this trial.

Contacts and Locations

Study Contact

Jaye L Thompson, Ph.D.
CONTACT
(832) 791-2542
Jaye.Thompson@GreenwichLifeSciences.com

Principal Investigator

Mothaffar F Rimawi, MD
PRINCIPAL_INVESTIGATOR
Baylor College of Medicine

Study Locations (Sites)

Arizona Oncology Associates
Tucson, Arizona, 85745
United States
Providence St. Jude Medical Center
Fullerton, California, 92835
United States
University of Southern California - Norris Comprehensive Cancer Center
Los Angeles, California, 90033
United States
Stanford University Women's Cancer Center
Palo Alto, California, 74304
United States
University of California San Francisco - Helen Diller Family Comprehensive Cancer Center
San Francisco, California, 94158
United States
University of California Los Angeles Hematology / Oncology Parkside
Santa Monica, California, 90404
United States
Torrance Memorial Physicians Network
Torrance, California, 90505
United States
PIH Health Hospital - Whittier
Whittier, California, 90602
United States
Rocky Mountain Cancer Centers
Denver, Colorado, 80220
United States
Yale University Cancer Center
New Haven, Connecticut, 06511
United States
Johns Hopkins University - Sibley Memorial Hospital
Washington, District of Columbia, 20016
United States
University of Miami Hospital and Clinics - Sylvester Comprehensive Cancer Center
Miami, Florida, 33146
United States
Moffitt Cancer Center
Tampa, Florida, 33612
United States
Northwestern University - Feinberg School of Medicine (Memorial Hospital)
Chicago, Illinois, 60611
United States
Maryland Oncology Hematology
Annapolis, Maryland, 21401
United States
Massachusetts General Hospital Cancer Center
Boston, Massachusetts, 02114
United States
Minnesota Oncology - Maple Grove Clinic
Maple Grove, Minnesota, 55369
United States
Washington University School of Medicine - Siteman Cancer Center
Saint Louis, Missouri, 63110
United States
Nebraska Cancer Specialists - Legacy
Omaha, Nebraska, 68114
United States
University of Nebraska Medical Center
Omaha, Nebraska, 68198
United States
Comprehensive Cancer Centers of Nevada
Henderson, Nevada, 89052
United States
New York Oncology Hematology
Clifton Park, New York, 12065
United States
Columbia University Medical Center
New York, New York, 10032
United States
Stony Brook University Cancer Center
Stony Brook, New York, 11794
United States
Oncology Hematology Care Clinical Trials
Cincinnati, Ohio, 45211
United States
Northwest Cancer Specialists - Compass Oncology
Tigard, Oregon, 97223
United States
Redeemer Health
Meadowbrook, Pennsylvania, 19046
United States
Thomas Jefferson University - Sidney Kimmel Cancer Center
Philadelphia, Pennsylvania, 19107
United States
Texas Oncology - Austin
Austin, Texas, 78745
United States
Texas Oncology - Dallas Presbyterian Hospital
Dallas, Texas, 75231
United States
Texas Oncology - Baylor Charles A. Sammons Cancer Center
Dallas, Texas, 75246
United States
The University of Texas Southwestern Medical Center
Dallas, Texas, 75390
United States
Baylor College of Medicine
Houston, Texas, 77057
United States
Texas Oncology - San Antonio
San Antonio, Texas, 78240
United States
Texas Oncology - Gulf Coast
Sugar Land, Texas, 77479
United States
Texas Oncology - Northeast Texas
Tyler, Texas, 75702
United States
University of Utah - Huntsman Cancer Institute
Salt Lake City, Utah, 84112
United States
Virginia Cancer Specialists
Fairfax, Virginia, 22031
United States

Collaborators and Investigators

Sponsor: Greenwich LifeSciences, Inc.

  • Mothaffar F Rimawi, MD, PRINCIPAL_INVESTIGATOR, Baylor College of Medicine

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2022-08-11
Study Completion Date2026-12

Study Record Updates

Study Start Date2022-08-11
Study Completion Date2026-12

Terms related to this study

Keywords Provided by Researchers

  • HER2/neu positive
  • Residual disease
  • pCR
  • Extended adjuvant
  • GP2
  • Immunotherapy
  • HLA type

Additional Relevant MeSH Terms

  • Breast Cancer