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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT03725436
Other study ID # 2018-0561
Secondary ID NCI-2018-0219220
Status Active, not recruiting
Phase Phase 1
First received
Last updated
Start date January 24, 2019
Est. completion date April 30, 2025

Study information

Verified date April 2024
Source M.D. Anderson Cancer Center
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This phase Ib trial studies the side effects and best dose of ALRN-6924 when given together with paclitaxel in treating patients with solid tumors that have spread to other places in the body or cannot be removed by surgery. Drugs used in chemotherapy, such as ALRN-6924 and paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading.


Description:

Primary Objectives: - Determine the dose-limiting toxicities (DLT) and the maximum tolerated dose (MTD) or recommended phase 2 dose (RP2D) of ALRN-6924 in combination with paclitaxel in adult patients with advanced or metastatic solid tumors with wild-type (WT) TP53. - Evaluate the safety and tolerability of ALRN-6924 in combination with paclitaxel in patients with advanced or metastatic WT TP53 solid tumors. Secondary Objective: • Evaluate the anti-tumor activity of ALRN-6924 in combination with paclitaxel in solid tumors (in dose escalation) and hormone-receptor positive breast cancer (in expansion). Exploratory objective: - Assess predictive and pharmacodynamic (PD) markers of response. - Assess the effects of ALRN-6924 and paclitaxel on cell proliferation and apoptosis. - Assess the effects of ALRN-6924 and paclitaxel on cell-free DNA (cfDNA) dynamics and macrophage inhibitory cytokine-1 (MIC-1) OUTLINE: This is a dose-escalation study of MDM2/MDMX inhibitor ALRN-6924. Patients receive paclitaxel intravenously (IV) over 1 hour and MDM2/MDMX inhibitor ALRN-6924 IV over 1 hour on days 1, 8, and 15. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up every 2 months for 1 year and then every 3 months thereafter.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 35
Est. completion date April 30, 2025
Est. primary completion date April 30, 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: In order to be eligible to participate in this study, an individual must meet all of the following criteria: 1. 18 years of age or older 2. Histologically- or cytologically-confirmed solid tumors (excluding lymphomas) that are metastatic or unresectable and that meet the following criteria: 1. Escalation and expansion cohorts: wild type (WT) TP53 status defined as no mutation on a Clinical Laboratory Improvement Amendments (CLIA)-certified next-generation sequencing (NGS) assay that has sequenced the full length TP53 gene. Patients can be enrolled based on tissue testing or liquid biopsies. If enrolled based on liquid biopsies, testing should have detected other somatic mutations. 2. Expansion cohort A only: estrogen receptor (ER) positive (> 1%), human epidermal growth factor 2 (HER2) negative, WT TP53 metastatic or inoperable locally advanced or locally recurrent breast cancer regardless of progresterone receptor (PR) status, HER2 status will be defined according to the ASCO/CAP 2018 recommendationa (Patients can be HER2 0+ or 1+ by immunohistochemistry (IHC), 2+ by IHC and fluorescent in situ hybridization (FISH) non-amplified to be considered HER2 negative). Standard treatment with therapies known to confer a survival benefit does not exist, is no longer effective or tolerated, or the patient declines standard treatment. For the dose expansion cohort only, breast cancer patients with ER+, HER2- status must have received prior endocrine therapy and CDK4/6 inhibitors 3. Expansion cohort B only: advanced or metastatic solid tumors with MDM2 or MDM4 amplifications and WT TP53 metastatic for which standard treatment with therapies known to confer a survival benefit does not exist, is no longer effective or tolerated, or the patient declines standard treatment. 3. Measurable disease by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1. In the dose escalation stage, patients without measurable disease by RECIST 1.1, but evaluable disease are also eligible. 4. Eastern Cooperative Oncology Group (ECOG) performance status of 0-1 (see Section 12, Appendix A). 5. Demonstrate adequate organ function as defined by the parameters listed below: 1. Serum creatinine = 1.5 x upper limit of normal (ULN) or = 45 mL/min/1.73m2 by CKD-EPI equation for subjects with creatinine levels > 1.5 x institutional ULN. 2. Total bilirubin = 1.5 x ULN, or direct bilirubin = ULN for subjects with total bilirubin levels > 1.5 x ULN, or unless due to Gilbert's Syndrome. 3. Alanine aminotransferase (ALT)/ aspartate aminotransferase (AST) = 2.5 x ULN or = 5 x ULN if hepatic abnormalities are related to underlying liver metastases or liver/biliary primary. 4. Absolute neutrophil count (ANC) =1500/mm3(without G-CSF in the 2 weeks prior to treatment start) 5. Platelet count = 100,000/mm3 6. Hemoglobin = 9 g/dL (without blood transfusion in the 2 weeks prior to treatment start) 6. All patients (males and females) of childbearing potential must agree to use medically effective contraception during the study and for 6 months after the last dose of study drugs. A negative urine or serum pregnancy test in women of childbearing potential is required within 72 hours prior to first dose of study medication. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required. 7. Have no concomitant medical condition (including, but not limited to, ongoing or active infection or any psychiatric disorder), that in the judgment of the investigator will interfere with the patient's ability to participate in the study or render such participation medically inappropriate. 8. No medical history of another cancer (except basal or squamous cell skin cancer or in situ cervical cancer, or carcinomas in situ or other malignancies with a =95% 5-year survival) within 2 years of the start of study treatment. 9. No investigational drug or other anticancer treatments (including chemotherapy or radiation, except palliative radiation) within 21 days or at least 5 half-lives, whichever is shorter, of the start of the study treatment. No palliative radiation within 2 weeks prior to the start of the study treatment. Supportive treatments such as LHRH agonists can be continued for patients with castration-resistant prostate cancer or pre-menopausal breast cancer while on treatment. 10. No major surgery within 1 month of treatment and fully recovered. 11. Willing and able to provide informed consent. Exclusion Criteria: An individual who meets any of the following criteria will be excluded from participation in this study: 1. Previous treatment with investigational agents that inhibit MDM2 or MDMX activity. 2. Known active hepatitis B, hepatitis C and/or human immunodeficiency virus (HIV)-positive patients who have a cluster of differentiation 4 (CD4) count < 200. No antiretroviral medications that are CYP3A4 substrates will be allowed. 3. Pre-existing history of or known cardiovascular risk: 1. History of acute coronary syndromes within 6 months prior to the first dose of ALRN-6924 (including myocardial infarction, unstable angina, coronary artery bypass graft, angioplasty, or stenting). 2. Uncontrolled hypertension 3. Pre-existing cardiac failure (New York Heart Association class III-IV) 4. Clinically significant uncontrolled arrhythmias 5. Corrected QTcF interval on screening ECG =450 msec for males and =470 msec for females (QTcF >480 msec for any patient with a bundle branch block). 4. Clinically significant gastrointestinal bleeding within 6 months prior to the start of study treatment. 5. Females who are pregnant or nursing. 6. Symptomatic central nervous system (CNS) metastases by history, clinical signs or radiologic findings. Patients with previously treated brain metastases are eligible if clinically stable and off steroid treatment for 2 weeks prior to study enrollment. Patients with new or progressive brain metastases (active brain metastases) are eligible if the treating physician determines that immediate CNS specific treatment is not required. 7. Known hypersensitivity to any study drug component. 8. The required use of any concomitant medications that are predominantly cleared by hepatobiliary transporters, OATP members OATP1B1 and OATP1B3, on the day of the ALRN-6924 infusion or within 48 hours after an ALRN-6924 infusion. 9. Patients with Grade =2 neuropathy will be excluded. 10. Patients with a known Human Papilloma Virus (HPV)-positive malignancy will be excluded from enrollment. This is owing to the fact that HPV-infected tumor cells continue to express the viral E6 protein, which is known to cause degradation of p53, hence rendering the expected ALRN-6924 - mediated dual inhibition of MDM2/MDMX very unlikely to restore p53 function.

Study Design


Related Conditions & MeSH terms

  • Advanced Malignant Solid Neoplasm
  • Anatomic Stage III Breast Cancer AJCC v8
  • Anatomic Stage IIIA Breast Cancer AJCC v8
  • Anatomic Stage IIIB Breast Cancer AJCC v8
  • Anatomic Stage IIIC Breast Cancer AJCC v8
  • Breast Neoplasms
  • Estrogen Receptor Positive
  • HER2/Neu Negative
  • Metastatic Malignant Solid Neoplasm
  • Neoplasms
  • Prognostic Stage III Breast Cancer AJCC v8
  • Prognostic Stage IIIA Breast Cancer AJCC v8
  • Prognostic Stage IIIB Breast Cancer AJCC v8
  • Prognostic Stage IIIC Breast Cancer AJCC v8
  • Recurrent Breast Carcinoma
  • TP53 wt Allele
  • Unresectable Malignant Solid Neoplasm

Intervention

Drug:
MDM2/MDMX Inhibitor ALRN-6924
Given IV
Paclitaxel
Given IV

Locations

Country Name City State
United States M D Anderson Cancer Center Houston Texas

Sponsors (2)

Lead Sponsor Collaborator
M.D. Anderson Cancer Center National Cancer Institute (NCI)

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Other Response Will assess correlation of response with p53 status, p21 status, murine double minute 2 (MDM2) and murine double minute X (MDMX) expression by immunohistochemistry (IHC) and by reverse phase proteomic array (RPPA) in pre- and on-treatment tumor biopsy samples. Up to 4 years
Other Gene mutations Will use whole exome sequencing on pre-treatment biopsy and at progression for TP53 mutations, MDM2 and MDMX copy number and other genomic alterations. Up to 4 years
Other Gene expression profiling Will use ribonucleic acid sequencing for gene expression profiling pre-treatment, on-treatment and at progression. Up to 4 years
Other Cell proliferation and apoptosis assays Will apply cell proliferation and apoptosis assays (Ki67, cleaved caspase3) on pre- and on-treatment tumor biopsy samples. Up to 4 years
Other Cell-free deoxyribonucleic acid (DNA) Will assess cell-free DNA (cfDNA) in blood, and serum concentrations of MIC-1. Up to 4 years
Other Pharmacokinetics parameters Will assess maximum concentration (Cmax) Up to 4 years
Other Pharmacokinetics parameters Will assess time to Cmax (Tmax) up to 4 years
Other Pharmacokinetics parameters Will assess half-life (t1/2) for ALRN-6924 and paclitaxel. up to 4 years
Primary Maximum tolerated dose (MTD) of combination of ALRN-6924 and paclitaxel, defined as the isotonic estimate of the toxicity rate closest to 0.30 Up to 28 days
Secondary Objective response rate (ORR) defined as the proportion of patients with complete response (CR) or partial response (PR), as determined by investigator assessment using Response Evaluation Criteria in Solid Tumors (RECIST version 1.1) Descriptive statistics will be used to summarize all patient data. When applicable, t-tests or Wilcoxon rank-sum tests will be used to make comparisons between patient subgroups of interest for continuous variables for parametric and non-parametric outcomes, respectively. Categorical data will be summarized using frequencies and percentages. Chi-square tests or Fisher's exact tests will be used to make comparisons between patient subgroups of interest for categorical variables. Will be estimated for the expansion cohort of 15 patients treated at the MTD, with corresponding exact 95% confidence intervals. Up to 4 years
Secondary Duration of response (DoR) Descriptive statistics will be used to summarize all patient data. When applicable, t-tests or Wilcoxon rank-sum tests will be used to make comparisons between patient subgroups of interest for continuous variables for parametric and non-parametric outcomes, respectively. Categorical data will be summarized using frequencies and percentages. Chi-square tests or Fisher's exact tests will be used to make comparisons between patient subgroups of interest for categorical variables. Median DoR will be presented with corresponding Kaplan-Meier curves. Time from documentation of tumor response to disease progression, assessed up to 4 years
Secondary Progression-free survival (PFS) Descriptive statistics will be used to summarize all patient data. When applicable, t-tests or Wilcoxon rank-sum tests will be used to make comparisons between patient subgroups of interest for continuous variables for parametric and non-parametric outcomes, respectively. Categorical data will be summarized using frequencies and percentages. Chi-square tests or Fisher's exact tests will be used to make comparisons between patient subgroups of interest for categorical variables. Median PFS will be presented with corresponding Kaplan-Meier curves. Time from the start of treatment to disease progression or death, whichever occurs first, assessed up to 4 years
Secondary Clinical benefit rate Will be defined as the proportion of patients with CR, PR, or stable disease (SD). Descriptive statistics will be used to summarize all patient data. When applicable, t-tests or Wilcoxon rank-sum tests will be used to make comparisons between patient subgroups of interest for continuous variables for parametric and non-parametric outcomes, respectively. Categorical data will be summarized using frequencies and percentages. Chi-square tests or Fisher's exact tests will be used to make comparisons between patient subgroups of interest for categorical variables. At 24 weeks
Secondary Overall survival (OS) Descriptive statistics will be used to summarize all patient data. When applicable, t-tests or Wilcoxon rank-sum tests will be used to make comparisons between patient subgroups of interest for continuous variables for parametric and non-parametric outcomes, respectively. Categorical data will be summarized using frequencies and percentages. Chi-square tests or Fisher's exact tests will be used to make comparisons between patient subgroups of interest for categorical variables. Time from the start of treatment to death from any cause, assessed up to 4 years
Secondary Pharmacokinetics parameters Will assess area under the curve (AUC). Up to 4 years
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