Breast Cancer, Cervical Cancer, Esophageal Cancer, Head and Neck Cancer, Lung Cancer, Melanoma, Sarcoma
Conditions
Keywords
MCL1
Brief summary
This is a Phase 1 dose-escalation study of PRT1419, a myeloid cell leukemia 1 (MCL1) inhibitor, in patients with advanced solid tumors. The purpose of this study is to define the dosing schedule, maximally tolerated dose and/or estimate the optimal biological dose to be used in subsequent development of PRT1419.
Detailed description
This is a multicenter, open-label, dose-escalation Phase 1 study of PRT1419, a MCL1 inhibitor, evaluating patients with relapsed or refractory solid tumors, including breast, lung, sarcoma and melanoma as part of a 28-day treatment cycle. The study will employ a 3+3 dose escalation design. The dose may be escalated until a dose limiting toxicity is identified.
Interventions
PRT1419 will be administered by intravenous infusion
Sponsors
Study design
Eligibility
Inclusion criteria
* Eastern Cooperative Oncology Group (ECOG) performance status of ≤ 2 * Adequate organ function (bone marrow, hepatic, renal, cardiovascular) * Left ventricular ejection fraction of ≥ 50% * Female patients of childbearing potential must have a negative pregnancy test within 7 days of the start of treatment and must agree to use a highly effective method of contraception during the trial * Patients must have recovered from the effects of any prior cancer related therapy, radiotherapy or surgery (toxicity ≤ Grade 1) * All patients on prior investigational agents must wait at least 5 half-lives of the agent in question, or 28 days, whichever is longer before study entry * Most recent lab values meet the following criteria: * Absolute neutrophil count \> 1.0 x 10\^3/μL; * Platelet count \> 75,000/μL; * Hemoglobin \> 9.0 g/dL * Histologically confirmed advanced or metastatic solid tumor indicated below that is relapsed, refractory, or intolerant to available therapies with known benefit: * Sarcoma not amendable to curative treatment with surgery or radiotherapy; * Melanoma (non-resectable or metastatic); * Small cell lung cancer (extensive-stage); * Non-small cell lung cancer; * Triple negative breast cancer (histopathologically or cytologically confirmed). * Esophageal cancer * Cervical cancer * Head and neck cancer
Exclusion criteria
* Known hypersensitivity to any of the components of PRT1419 * Primary malignancies of the CNS, or uncontrolled CNS metastases, including impending spinal cord compression * Female patients who are pregnant or lactating * Inflammatory disorders of the gastrointestinal tract, or subjects with GI malabsorption * Mean QTcF interval of \>480 msec * History of heart failure, additional risk factors for arrhythmias or requiring concomitant medications that prolong the QT/QTc interval * HIV positive; known active hepatitis B or C * Uncontrolled intercurrent illnesses * Treatment with strong inhibitors of CYP2C8 * Prior exposure to an MCL1 inhibitor * History of another malignancy except: * Malignancy treated with curative intent with no known active disease for \>2 years at study entry; * Adequately treated non-melanoma skin cancer or lentigo maligna without evidence of disease; * Adequately treated carcinoma in situ without evidence of disease; * Other concurrent low-grade malignancies (i.e chronic lymphocytic leukemia (Rai 0)) may be considered after consultation with Sponsor.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Dose limiting toxicities (DLT) of PRT1419 | Baseline through Day 28 | Dose limiting toxicities will be evaluated through the first cycle |
| Maximally tolerated dose (MTD) and/or optimal biological dose (OBD) | Baseline through approximately 2 years | The MTD and/or OBD will be established for further investigation in participants with advanced solid tumors. |
| Recommended phase 2 dose (RP2D) and schedule of PRT1419 | Baseline through approximately 2 years | The RP2D will be established for further investigation in participants with advanced solid tumors. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Safety and tolerability of PRT1419: AEs, SAEs, CTCAE assessments | Baseline through approximately 2 years | Safety and tolerability will be assessed by recording adverse events (AEs) and serious adverse events (SAEs) according to Common Terminology Criteria for Adverse Events (CTCAE) |
| Progression-free survival | Baseline through approximately 2 years | Progression-free survival will be calculated from the first administration of PRT1419 until death or until the criteria for disease progression are met |
| Pharmacokinetic profile of PRT1419: maximum observed plasma concentration | Baseline through approximately 2 years | PRT1419 pharmacokinetics will be calculated including the maximum observed plasma concentration |
| Anti-tumor activity of PRT1419: measurement of objective responses | Baseline through approximately 2 years | Anti-tumor activity of PRT1419 will be based on the measurement of objective responses |
Countries
United States