Head and Neck Carcinoma of Unknown Primary, Head and Neck Squamous Cell Carcinoma, Stage III Hypopharyngeal Squamous Cell Carcinoma AJCC v7, Stage III Laryngeal Squamous Cell Carcinoma AJCC v6 and v7, Stage III Oral Cavity Squamous Cell Carcinoma AJCC v6 and v7, Stage III Oropharyngeal Squamous Cell Carcinoma AJCC v7, Stage III Sinonasal Squamous Cell Carcinoma AJCC v6 and v7, Stage IV Hypopharyngeal Squamous Cell Carcinoma AJCC v7, Stage IV Laryngeal Squamous Cell Carcinoma AJCC v7, Stage IV Oral Cavity Squamous Cell Carcinoma AJCC v6 and v7, Stage IV Oropharyngeal Squamous Cell Carcinoma AJCC v7, Stage IV Sinonasal Squamous Cell Carcinoma AJCC v7
Conditions
Brief summary
This phase I trial studies the side effects and best dose of berzosertib (M6620) when given together with cisplatin and radiation therapy in treating patients with head and neck squamous cell carcinoma that has spread from where it started to nearby tissue or lymph nodes (locally advanced). M6620 may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Chemotherapy drugs, such as cisplatin, 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. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Giving M6620 together with cisplatin and radiation therapy may work better in treating patients with locally advanced head and neck squamous cell carcinoma.
Detailed description
PRIMARY OBJECTIVES: I. Assess the safety and tolerability of M6620 (VX-970, berzosertib) when administered along with weekly cisplatin and radiation therapy (XRT) in patients with locoregionally advanced head and neck squamous cell carcinoma (HNSCC). II. Establish the recommended phase 2 dose (RP2D) of the combination. SECONDARY OBJECTIVES: I. Characterize the pharmacokinetic (PK) profile of M6620 (VX-970, berzosertib). II. Assess for potential drug-drug interaction between M6620 (VX-970, berzosertib) and aprepitant. III. To observe and record anti-tumor activity. IV. To assess the rate of complete metabolic response (CMR) at 12 weeks post completion of chemoradiation using 18 fluorodeoxyglucose (FDG) positron emission tomography (PET) scans. V. To collect archival tumor material for retrospective analysis of association between tissue-based biomarkers and clinical outcome. OUTLINE: This is a dose-escalation study of berzosertib. Patients receive berzosertib intravenously (IV) over 60 minutes on day -7 and then weekly on day 2 and cisplatin IV over 30-60 minutes weekly on day 1. Patients also undergo radiation therapy once daily, 5 days a week. Treatment continues for up to 7 weeks in the absence of disease progression or unacceptable toxicity. Additionally, patients undergo computed tomography (CT), PET/CT, or magnetic resonance imaging (MRI) throughout the study. After completion of study treatment, patients are followed up for 30 days, every 2 weeks for 3 months, and then every 3 months for 2 years.
Interventions
Given IV
Given IV
Undergo CT or PET/CT
Correlative studies
Undergo MRI
Undergo PET/CT
Undergo radiation therapy
Sponsors
Study design
Eligibility
Inclusion criteria
* Patients must have histologically or cytologically confirmed head and neck squamous cell cancer (HNSCC) including paranasal sinus cancers but excluding nasopharyngeal carcinomas * Clinical staged III or IV HNSCC, according to American Joint Committee on Cancer (AJCC) 7th Edition, that is not amenable to surgical resection * Carcinoma of the neck of unknown primary site origin (regardless of HPV/p16 status) is eligible * Age \>= 18 years; because no dosing or adverse event data are currently available on the use of M6620 (VX-970, berzosertib) in combination with cisplatin in patients \< 18 years of age, children are excluded from this study, but will be eligible for future pediatric trials * Eastern Cooperative Oncology Group (ECOG) performance status =\< 2 (Karnofsky \>= 60%) * Life expectancy of greater than 3 months * Patients must have measurable disease, defined as at least one lesion that can be accurately measured in at least one dimension (longest diameter to be recorded for non-nodal lesions and short axis for nodal lesions) as \>= 20 mm (\>= 2 cm) with conventional techniques or as \>= 10 mm (\>= 1 cm) with spiral computed tomography (CT) scan, magnetic resonance imaging (MRI), or calipers by clinical exam * Leukocytes \>= 3,000/mcL * Absolute neutrophil count \>= 1,500/mcL * Platelets \>= 100,000/mcL * Total bilirubin within normal institutional limits * Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase \[SGPT\]) =\< 2.5 x institutional upper limit of normal * Creatinine within normal institutional limits OR creatinine clearance \>= 60 mL/min/1.73 m\^2 for patients with creatinine levels above institutional normal * The effects of M6620 (VX-970, berzosertib) on the developing human fetus are unknown; for this reason and because DNA-damage response (DDR) inhibitors as well as other therapeutic agents used in this trial may have teratogenic potential, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation; should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately; men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and for 6 months after completion of M6620 (VX-970, berzosertib) administration * Ability to understand and the willingness to sign a written informed consent document * Women of childbearing potential who are sexually active should be willing and able to use medically acceptable forms of contraception throughout the treatment phase of the trial and for up to 6 months following the last administration of study treatment; men who are sexually active must be willing and able to use medically acceptable forms of contraception throughout the treatment phase of the trial and for 6 months after completion of M6620 (VX-970, berzosertib) administration
Exclusion criteria
* Patients with nasopharyngeal carcinoma, skin squamous cell carcinoma (SCC), and salivary gland carcinomas are not eligible * Patients who are receiving adjuvant chemoradiation after surgical resection of the primary site of disease * Patients who have had chemotherapy or radiotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier * Patients who are receiving any other investigational agents * Patients on tacrolimus or any other immunosuppressants with significant interaction with cisplatin * Patient who requires live vaccine administration * Patients with known brain metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events * History of allergic reactions attributed to compounds of similar chemical or biologic composition to M6620 (VX-970, berzosertib) or cisplatin * Prior systemic chemotherapy for the current cancer (prior chemotherapy for a different cancer is allowed) * Prior receipt of radiotherapy that would result in overlap of the new and old radiation therapy fields * Uncontrolled intercurrent illness including, but not limited to: * Ongoing or active infection requiring intravenous antibiotics at the time of treatment initiation * Symptomatic congestive heart failure (requiring hospital stay within the last 6 months) * Myocardial infarction within the last 6 months * Unstable angina pectoris, cardiac arrhythmia * Psychiatric illness/social situations that would limit compliance with study requirements * Pregnant women are excluded from this study because M6620 (VX-970, berzosertib) as a DNA-damage response (DDR) inhibitor may have the potential for teratogenic or abortifacient effects; because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with M6620 (VX-970, berzosertib), breastfeeding should be discontinued if the mother is treated with M6620 (VX-970, berzosertib); these potential risks may also apply to other agents used in this study * Human immunodeficiency virus (HIV)-positive patients with well-controlled disease, as determined by CD4 count and viral load, who are on antiretroviral therapy that does not contain a strong inducer or inhibitor of CYP3A4 are allowed on trial; HIV-positive patients on combination antiretroviral therapy with strong inducers or inhibitors of CYP3A4 are ineligible because of the potential for pharmacokinetic interactions; patients with poorly controlled HIV are not eligible due to the increased risk of lethal infections when treated with marrow-suppressive therapy * Definitive clinical or radiographic evidence of distant metastasis or adenopathy below the clavicles * M6620 (VX-970, berzosertib) is primarily metabolized by CYP3A4; therefore, concomitant administration with strong inhibitors or inducers of CYP3A4 should be avoided; because the lists of these agents are constantly changing, it is important to regularly consult a frequently-updated medical reference for a list of drugs to avoid or minimize use of; as part of the enrollment/informed consent procedures, the patient will be counseled on the risk of interactions with other agents, and what to do if new medications need to be prescribed or if the patient is considering a new over-the-counter medicine or herbal product
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Up to 6.5 years | According to the Cancer Therapy Evaluation Program National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0 (NCI CTCAE v. 5). The highest grade experienced by the participant will be reported. |
| Number of Participants Experiencing a Dose Limiting Toxicities | Up to 3 weeks after completion of radiation therapy | Dose limiting toxicities are protocol-specific adverse events considered at least possibly related to the study intervention. Graded according to NCI CTCAE v5. |
| Establish the Recommended Phase 2 Dose (RP2D) | Up to 7 weeks | Defined as the highest doses of cisplatin and berzosertib safely combined with radiation. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Number of Participants Experiencing a Metabolic Response | At week 12 after completing intervention | Assessed by fluorodeoxyglucose-positron emission tomography (FDG PET) and measured by Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. Metabolic response are participants demonstrating a complete response (disappearance of all target and non-target lesions) or a partial response (at least a 30% decrease in the sum of diameters of target lesions from baseline). |
| Pharmacokinetic Characteristics of Berzosertib | Up to Day 5 | The maximum concentration ratio between Day -7 collections to Day 2 collections. Collection time points are baseline, 30 and 55 minutes after the start of M6620 infusion, 5, 15, 30 minutes, 1, 2, 4, 23 (Day 3), 48 (Day 4), and 72 hours (Day 5) after the end of M6620 infusion given on Day 2. |
| Expression of Tissue-based Biomarkers as Markers of Deoxyribonucleic Acid Damage and Predictors of Clinical Outcome | Up to 6.5 years | Kaplan-Meier curves for Progression Free Survival (PFS), defined as time to disease progression, and Overall Survival (OS), defined as time until death or off study, were used to evaluate if the gene expression profiles of ERCC1 and XRCC1, and TP53 correlated to these outcomes. |
| Potential Drug-drug Interaction | Up to Day 5 | The maximum concentration of M6620 in the blood when aprepitant is also given. |
| Number of Participants Experiencing a Response | Up to 6.5 years | Evaluated by Response Evaluation Criteria in Solid Tumors 1.1. Response is defined as complete response (disappearance of all target and non-target lesions) or partial response (at least a 30% decrease in the sum of diameters of target lesions from baseline). |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Dose Level 1 Patients received M6620 (VX-970, berzosertib) 120 mg/m2 by infusion in their arm weekly, cisplatin 40 mg/m2 IV weekly starting a week after M6620, and radiation therapy 70 Gy daily Monday-Friday also starting a week after M6620. | 11 |
| Dose Level 2 Patients received M6620 (VX-970, berzosertib) 160 mg/m2 by infusion in their arm weekly, cisplatin 40 mg/m2 IV weekly starting a week after M6620, and radiation therapy 70 Gy daily Monday-Friday also starting a week after M6620. | 6 |
| Dose Level 3 Patients received M6620 (VX-970, berzosertib) 200 mg/m2 by infusion in their arm weekly, cisplatin 40 mg/m2 IV weekly starting a week after M6620, and radiation therapy 70 Gy daily Monday-Friday also starting a week after M6620. | 11 |
| Dose Level 3 Expansion Patients received M6620 (VX-970, berzosertib) 200 mg/m2 by infusion in their arm weekly, cisplatin 40 mg/m2 IV weekly starting a week after M6620, and radiation therapy 70 Gy daily Monday-Friday also starting a week after M6620. | 15 |
| Total | 43 |
Baseline characteristics
| Characteristic | Dose Level 1 | Total | Dose Level 3 Expansion | Dose Level 3 | Dose Level 2 |
|---|---|---|---|---|---|
| Age, Continuous | 69 Years | 61 Years | 59 Years | 59 Years | 65.5 Years |
| Ethnicity (NIH/OMB) Hispanic or Latino | 0 Participants | 1 Participants | 0 Participants | 1 Participants | 0 Participants |
| Ethnicity (NIH/OMB) Not Hispanic or Latino | 11 Participants | 41 Participants | 14 Participants | 10 Participants | 6 Participants |
| Ethnicity (NIH/OMB) Unknown or Not Reported | 0 Participants | 1 Participants | 1 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) American Indian or Alaska Native | 0 Participants | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Asian | 0 Participants | 1 Participants | 1 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Black or African American | 3 Participants | 5 Participants | 2 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) More than one race | 0 Participants | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 0 Participants | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 0 Participants | 2 Participants | 1 Participants | 1 Participants | 0 Participants |
| Race (NIH/OMB) White | 8 Participants | 35 Participants | 11 Participants | 10 Participants | 6 Participants |
| Region of Enrollment United States | 11 participants | 43 participants | 15 participants | 11 participants | 6 participants |
| Sex: Female, Male Female | 5 Participants | 17 Participants | 5 Participants | 5 Participants | 2 Participants |
| Sex: Female, Male Male | 6 Participants | 26 Participants | 10 Participants | 6 Participants | 4 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk | EG003 affected / at risk |
|---|---|---|---|---|
| deaths Total, all-cause mortality | 2 / 11 | 1 / 6 | 2 / 11 | 2 / 15 |
| other Total, other adverse events | 11 / 11 | 6 / 6 | 11 / 11 | 15 / 15 |
| serious Total, serious adverse events | 5 / 11 | 4 / 6 | 7 / 11 | 5 / 15 |
Outcome results
Establish the Recommended Phase 2 Dose (RP2D)
Defined as the highest doses of cisplatin and berzosertib safely combined with radiation.
Time frame: Up to 7 weeks
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Dose Level 1 | Establish the Recommended Phase 2 Dose (RP2D) | 200 mg/m^2 |
Number of Participants Experiencing a Dose Limiting Toxicities
Dose limiting toxicities are protocol-specific adverse events considered at least possibly related to the study intervention. Graded according to NCI CTCAE v5.
Time frame: Up to 3 weeks after completion of radiation therapy
Population: Dose limiting toxicities (DLTs) are only evaluated in participants during dose escalation (i.e. Dose Levels 1, 2, and 3). Participants not completing the treatment for reasons other than an adverse event (i.e. withdrawal or non-compliance with treatment) are excluded from the analysis. DLTs were not evaluated for participants enrolled in Dose Expansion.
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Dose Level 1 | Number of Participants Experiencing a Dose Limiting Toxicities | Experiencing a DLT | 2 Participants |
| Dose Level 1 | Number of Participants Experiencing a Dose Limiting Toxicities | Did not experience a DLT | 7 Participants |
| Dose Level 2 | Number of Participants Experiencing a Dose Limiting Toxicities | Experiencing a DLT | 1 Participants |
| Dose Level 2 | Number of Participants Experiencing a Dose Limiting Toxicities | Did not experience a DLT | 5 Participants |
| Dose Level 3 | Number of Participants Experiencing a Dose Limiting Toxicities | Experiencing a DLT | 2 Participants |
| Dose Level 3 | Number of Participants Experiencing a Dose Limiting Toxicities | Did not experience a DLT | 7 Participants |
Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events
According to the Cancer Therapy Evaluation Program National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0 (NCI CTCAE v. 5). The highest grade experienced by the participant will be reported.
Time frame: Up to 6.5 years
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Dose Level 1 | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grade 3 | 7 Participants |
| Dose Level 1 | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grade 4 | 3 Participants |
| Dose Level 1 | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grades 1-2 | 1 Participants |
| Dose Level 1 | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grade 5 | 0 Participants |
| Dose Level 2 | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grade 5 | 0 Participants |
| Dose Level 2 | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grade 3 | 3 Participants |
| Dose Level 2 | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grades 1-2 | 0 Participants |
| Dose Level 2 | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grade 4 | 3 Participants |
| Dose Level 3 | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grade 5 | 1 Participants |
| Dose Level 3 | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grade 3 | 5 Participants |
| Dose Level 3 | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grade 4 | 4 Participants |
| Dose Level 3 | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grades 1-2 | 1 Participants |
| Dose Level 3 Expansion | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grades 1-2 | 0 Participants |
| Dose Level 3 Expansion | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grade 4 | 3 Participants |
| Dose Level 3 Expansion | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grade 5 | 1 Participants |
| Dose Level 3 Expansion | Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events | Grade 3 | 11 Participants |
Expression of Tissue-based Biomarkers as Markers of Deoxyribonucleic Acid Damage and Predictors of Clinical Outcome
Kaplan-Meier curves for Progression Free Survival (PFS), defined as time to disease progression, and Overall Survival (OS), defined as time until death or off study, were used to evaluate if the gene expression profiles of ERCC1 and XRCC1, and TP53 correlated to these outcomes.
Time frame: Up to 6.5 years
| Arm | Measure | Category | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Dose Level 1 | Expression of Tissue-based Biomarkers as Markers of Deoxyribonucleic Acid Damage and Predictors of Clinical Outcome | Selected Biomarkers did not correlate to Outcome | 8 Participants |
| Dose Level 1 | Expression of Tissue-based Biomarkers as Markers of Deoxyribonucleic Acid Damage and Predictors of Clinical Outcome | Selected Biomarkers correlated to Outcome | 0 Participants |
| Dose Level 2 | Expression of Tissue-based Biomarkers as Markers of Deoxyribonucleic Acid Damage and Predictors of Clinical Outcome | Selected Biomarkers did not correlate to Outcome | 5 Participants |
| Dose Level 2 | Expression of Tissue-based Biomarkers as Markers of Deoxyribonucleic Acid Damage and Predictors of Clinical Outcome | Selected Biomarkers correlated to Outcome | 0 Participants |
| Dose Level 3 | Expression of Tissue-based Biomarkers as Markers of Deoxyribonucleic Acid Damage and Predictors of Clinical Outcome | Selected Biomarkers correlated to Outcome | 0 Participants |
| Dose Level 3 | Expression of Tissue-based Biomarkers as Markers of Deoxyribonucleic Acid Damage and Predictors of Clinical Outcome | Selected Biomarkers did not correlate to Outcome | 9 Participants |
| Dose Level 3 Expansion | Expression of Tissue-based Biomarkers as Markers of Deoxyribonucleic Acid Damage and Predictors of Clinical Outcome | Selected Biomarkers correlated to Outcome | 0 Participants |
| Dose Level 3 Expansion | Expression of Tissue-based Biomarkers as Markers of Deoxyribonucleic Acid Damage and Predictors of Clinical Outcome | Selected Biomarkers did not correlate to Outcome | 9 Participants |
Number of Participants Experiencing a Metabolic Response
Assessed by fluorodeoxyglucose-positron emission tomography (FDG PET) and measured by Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. Metabolic response are participants demonstrating a complete response (disappearance of all target and non-target lesions) or a partial response (at least a 30% decrease in the sum of diameters of target lesions from baseline).
Time frame: At week 12 after completing intervention
Population: Due to funding issues, response was solely assessed by CT scans instead of FDG PET. Metabolic data was therefore not collected.
Number of Participants Experiencing a Response
Evaluated by Response Evaluation Criteria in Solid Tumors 1.1. Response is defined as complete response (disappearance of all target and non-target lesions) or partial response (at least a 30% decrease in the sum of diameters of target lesions from baseline).
Time frame: Up to 6.5 years
| Arm | Measure | Category | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Dose Level 1 | Number of Participants Experiencing a Response | Not Performed | 2 Participants |
| Dose Level 1 | Number of Participants Experiencing a Response | No Response | 0 Participants |
| Dose Level 1 | Number of Participants Experiencing a Response | Response | 9 Participants |
| Dose Level 2 | Number of Participants Experiencing a Response | No Response | 1 Participants |
| Dose Level 2 | Number of Participants Experiencing a Response | Response | 2 Participants |
| Dose Level 2 | Number of Participants Experiencing a Response | Not Performed | 3 Participants |
| Dose Level 3 | Number of Participants Experiencing a Response | Response | 7 Participants |
| Dose Level 3 | Number of Participants Experiencing a Response | No Response | 1 Participants |
| Dose Level 3 | Number of Participants Experiencing a Response | Not Performed | 3 Participants |
| Dose Level 3 Expansion | Number of Participants Experiencing a Response | No Response | 3 Participants |
| Dose Level 3 Expansion | Number of Participants Experiencing a Response | Not Performed | 5 Participants |
| Dose Level 3 Expansion | Number of Participants Experiencing a Response | Response | 7 Participants |
Pharmacokinetic Characteristics of Berzosertib
The maximum concentration ratio between Day -7 collections to Day 2 collections. Collection time points are baseline, 30 and 55 minutes after the start of M6620 infusion, 5, 15, 30 minutes, 1, 2, 4, 23 (Day 3), 48 (Day 4), and 72 hours (Day 5) after the end of M6620 infusion given on Day 2.
Time frame: Up to Day 5
Population: Based on samples collected. PK was only collected in the dose escalation phase. PK was not collected for participants in the dose expansion arm.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Dose Level 1 | Pharmacokinetic Characteristics of Berzosertib | 0.75 ratio | Standard Deviation 1.7 |
| Dose Level 3 | Pharmacokinetic Characteristics of Berzosertib | 1.02 ratio | Standard Deviation 1.5 |
Potential Drug-drug Interaction
The maximum concentration of M6620 in the blood when aprepitant is also given.
Time frame: Up to Day 5
Population: Based on samples collected. PK was only collected in the dose escalation phase. PK was not collected for participants in the dose expansion arm.
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Dose Level 1 | Potential Drug-drug Interaction | 732 ug/L | Standard Deviation 2.5 |
| Dose Level 3 | Potential Drug-drug Interaction | 1149 ug/L | Standard Deviation 1.9 |