Overview

Preventive stRategy for IMMU132-relatED AEs in TNBC

Status:
Not yet recruiting
Trial end date:
2025-12-14
Target enrollment:
0
Participant gender:
All
Summary
This is a multicenter, open-label, single-arm, multicohort, two-stage optimal Simon's design, phase II clinical trial that is designed to improve the tolerance of sacituzumab govitecan in patients with unresectable locally advanced or metastatic triple negative breast cancer (TNBC), refractory to at least one, and no more than two, prior standard of care chemotherapy regimens in this setting that is not amenable to resection with curative intent. The goal of this study is to evaluate the safety of sacituzumab govitecan in combination with loperamide and G-CSF in pretreated patients with unresectable locally advanced or metastatic TNBC.
Phase:
Phase 2
Accepts Healthy Volunteers?
No
Details
Lead Sponsor:
MedSIR
Collaborator:
Gilead Sciences
Treatments:
Antidiarrheals
Lenograstim
Loperamide
Criteria
Inclusion Criteria:

1. Signed Informed Consent Form (ICF) prior to participation in any study-related
activities.

2. Patients aged ≥18 years at the time of signing ICF.

3. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.

4. Life expectancy of ≥ 12 weeks.

5. Histologically confirmed TNBC per American Society of Clinical Oncology (ASCO)/College
of American Pathologists (CAP) criteria based on local testing on the most recent
analyzed biopsy. Triple-negative is defined as <1% expression for estrogen receptor
(ER) and progesterone receptor (PgR) and negative for human epidermal growth factor
receptor 2 (HER2) (0-1+ by IHC or 2+ and negative by in situ hybridization [ISH)
test].

6. Unresectable locally advanced or metastatic disease documented by computerized
tomography (CT) scan or magnetic resonance imaging (MRI) that is not amenable to
resection with curative intent.

7. Refractory to at least one, and no more than two, prior standard of care chemotherapy
regimens for unresectable locally advanced or MBC. Earlier adjuvant or neoadjuvant
therapy for more limited disease will be considered as one of the required prior
regimens if the development of unresectable locally advanced or metastatic disease
occurred within a 12-month period after completion of chemotherapy or immunotherapy
(e.g. adjuvant pembrolizumab).

8. All patients must have been previously treated with taxanes regardless of disease
stage (adjuvant, neoadjuvant, or advanced), unless contraindicated for a given
patient.

9. Measurable or non-measurable, but evaluable disease, as per RECIST v.1.1. Patients
with bone-only metastases are also eligible.

10. Brain MRI must be done for patients with suspicion of brain metastases and patient
must have stable central nervous system (CNS) disease for at least 4 weeks after local
therapy, without neurological symptoms, and off anticonvulsants and steroids for at
least 2 weeks before first dose of study treatment.

11. Adequate hematologic counts without transfusional or growth factor support within 2
weeks before of study drug initiation (hemoglobin ≥ 9 g/dL, ANC ≥ 1500/mm3, and
platelets ≥ 100,000/μL).

12. Adequate renal and hepatic function (creatinine clearance of ≥ 60 ml/min, may be
calculated using Cockcroft-Gault equation; bilirubin ≤ 1.5 x ULN, AST and ALT ≤ 3.0 x
ULN or 5 x ULN if known liver metastases).

13. Resolution of all acute AEs of prior anti-cancer therapy to grade 1 as determined by
the NCI-CTCAE v.5.0 (except for alopecia or other toxicities not considered a safety
risk for the patient at investigator discretion).

14. Male patients and female patients of childbearing potential who engage in heterosexual
intercourse must agree to use institution specified method(s) of contraception.

15. Patients must have completed all prior cancer treatments at least 2 weeks* prior to
randomization including chemotherapy (includes also endocrine treatment),
radiotherapy, and major surgery.

- Prior antibody treatment for cancer must have been completed at least 3 weeks
prior to randomization.

Exclusion Criteria:

1. Prior treatment with topoisomerase 1 inhibitors as a free form or as other
formulations.

2. Patients with carcinomatous meningitis or leptomeningeal disease.

3. Known hypersensitivity reaction to any investigational or therapeutic compound or
their incorporated substances.

4. Patients with Gilbert's disease.

5. Patients known to be HIV positive, hepatitis B positive, or hepatitis C positive.

6. Participants with non-melanoma skin cancer or carcinoma in situ of the cervix are
eligible, while participants with other prior malignancies must have had at least a
3-year disease-free interval.

7. Known history of unstable angina, myocardial infarction, or cardiac heart failure
present within 6 months of study initiation or clinically significant cardiac
arrhythmia (other than stable atrial fibrillation) requiring anti-arrhythmia therapy
or history of QT interval prolongation.

8. Known history of clinically significant active Chronic obstructive pulmonary disease
(COPD), or other moderate-to-severe chronic respiratory illness present within 6
months of study initiation.

9. Known history of clinically significant bleeding, intestinal obstruction, or
gastrointestinal perforation within 6 months of study initiation.

10. Active or prior documented inflammatory bowel disease (i.e. Crohn's disease,
ulcerative colitis, or a preexisting chronic condition resulting in baseline grade ≥1
diarrhea).

11. Infection requiring antibiotic use within 1 week of randomization.

12. Other concurrent medical or psychiatric conditions that, in the Investigator's
opinion, may be likely to confound study interpretation or prevent completion of study
procedures and follow-up examinations.

13. Women who are pregnant or lactating.

14. Concomitant participation in other interventional clinical trial. Note: Patients
participating in observational studies are eligible.