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Phase I Dose-Escalation, Safety, Pharmacokinetic and Pharmacodynamic Study of BVD-523 in Patients With Advanced Malignancies

Phase I Dose-Escalation, Safety, Pharmacokinetic and Pharmacodynamic Study of BVD-523 in Patients With Advanced Malignancies

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01781429
Enrollment
136
Registered
2013-02-01
Start date
2013-03-31
Completion date
2018-09-30
Last updated
2020-03-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumors

Brief summary

This open-label, multi-center Phase 1/2 study will assess the safety, pharmacokinetics, and pharmacodynamics of escalating doses of BVD-523 in patients with advanced malignancies. The study also seeks to demonstrate target modulation and early signs of clinical response in select patient populations.

Detailed description

The study is being performed to assess the safety and tolerability of BVD-523 In Part 1 of the study, an accelerated dose escalation plan will be used to establish dose limiting toxicities, maximum tolerated dose, and the recommended Phase 2 dose. In Part 2 of the study, additional patients with particular tumor types and/or cancers harboring specific genetic mutations will be recruited for treatment at the Recommended Phase 2 Dose. Patients may also be assessed pharmacodynamic measures in healthy or malignant tissues, using biomarker assays for phosphorylation, cytotoxic or cytostatic measures.

Interventions

Oral, multiple escalating doses, twice daily, for 21 days in each treatment cycle

Sponsors

BioMed Valley Discoveries, Inc
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients with metastatic or advanced-stage malignant tumor. Patients may have received up to 2 prior lines of chemotherapy for their metastatic disease * ECOG score of 0 or 1 * Predicted life expectancy of ≥ 3 months * Adequate bone marrow, liver and renal function renal function * Adequate cardiac function * For women: Negative pregnancy test for females of child-bearing potential; must be surgically sterile, postmenopausal, or compliant with a contraceptive regimen during and for 3 months after the treatment period * For men: Must be surgically sterile, or compliant with a contraceptive regimen during and for 3 months after the treatment period * For Part 2 of the Study only, patients must have measurable disease by RECIST 1.1 and be in one of the the groups below. Patients in groups 1, 2, 4, 5 and 6 may not have been previously treated with BRAF and/or MEK inhibitors * Group 1: Patients with BRAF mutated cancer, except those with colorectal or non-small cell lung cancers * Group 2: Patients with BRAF mutated colorectal cancer * Group 3: Patients with BRAF mutated melanoma who have progressed on, or are refractory to BRAF and/or MEK inhibitors * Group 4: Patients with NRAS mutated melanoma * Group 5: Patients with MEK mutated cancer * Group 6: Patients with BRAF mutated non-small cell lung cancer * Group 7: Patients with ERK mutated cancer

Exclusion criteria

* Gastrointestinal condition which could impair absorption of study medication * Uncontrolled or severe intercurrent medical condition * Known uncontrolled brain metastases. Stable brain metastases either treated or being treated with a stable dose of steroids/anticonvulsants * Any cancer-directed therapy (chemotherapy, radiotherapy, hormonal therapy, biologic or immunotherapy, etc.) within 28 days or 5 half-lives, whichever is shorter * Major surgery within 4 weeks prior to first dose * Any use of an investigational drug within 28 days or 5 half-lives (whichever is shorter) prior to the first dose of BVD-523. * Pregnant or breast-feeding women * Any evidence of serious active infections * Any important medical illness or abnormal laboratory finding that would increase the risk of participating in this study * A history or current evidence/risk of retinal vein occlusion or central serous retinopathy * Concurrent therapy with any other investigational agent * Concomitant malignancies or previous malignancies with less than 2 years disease-free interval at the time of enrollment

Design outcomes

Primary

MeasureTime frameDescription
Determination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).As indicated by safety and tolerability during study conduct; ~42 monthsDLT is defined as any BVD-523 related toxicity in the first 21 days of treatment that results in: 1. ≥Grade 4 hematologic toxicity for \>1 day; 2. Grade 3 hematologic toxicity with complications e.g., thrombocytopenia with bleeding; 3. ≥Grade 3 non-hematologic toxicity, except untreated nausea, vomiting, constipation, pain and rash (these become DLTs if the adverse event (AE) persists despite adequate treatment), a doubling of aspartate transaminase (AST)/alanine transaminase (ALT) in patients with grade 2 ALT/AST at baseline; 4. A treatment interruption exceeding 5 days (or an interruption exceeding 7 days for rash, despite adequate treatment) in Cycle 1 (or inability to begin Cycle 2 for \> 7 days) due to BVD-523-related toxicity.

Secondary

MeasureTime frameDescription
Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Samples will be collected on day 1 and day 15 of Cycle 1Data provided is for BVD-523.
Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Patients will be evaluated at baseline & at periodic follow-up visits through the time their participation in the study is completion. The best responses presented occurred at different time points for each patient.At enrollment, all study patients had metastatic or advanced-stage malignant tumor for which no curative therapy was known to exist. Patients entering Part 2 additionally had to have measurable disease by RECIST version 1.1. Data shown is best response.

Other

MeasureTime frameDescription
Pharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Patients will be evaluated at baseline and on ~day 15 of Cycle 1RSK1, a member of the RSK serine/threonine kinase family, is a direct substrate of the MAP Kinases ERK1 & ERK2. RSK1 and ERK1/2 form an inactive complex in unstimulated cells. Upon activation of the mitogenic pathway, ERK1/2 phosphorylates Thr573, Thr359 and Ser363 on RSK1. Thr573 resides in the activation loop of the carboxy terminal kinase domain of RSK1 and once phosphorylated, enables RSK1 to autophosphorylate Ser380. Phosphorylation of Ser380 on RSK1 can therefore be used as a target biomarker for ERK1 and ERK2 activity. BVD-523 inhibits the activity of ERK. In this study, phosphorylation of RSK1 Ser 380 (pRSK) was used as a target biomarker for assessment of ERK inhibition by BVD-523 in human whole blood samples.

Countries

United States

Participant flow

Participants by arm

ArmCount
Dose-escalation 10mg b.i.d. Cohort
Patients received 10mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or a clinical observation satisfying another withdrawal criterion was noted. Treatment cycles occurred consecutively without interruption, except when necessary to manage AEs. All dose-escalation decisions were based on Cycle 1 safety data and doses were not escalated unless the patients receiving the highest current dose had been observed for at least 3 weeks.
1
Dose-escalation 20mg b.i.d. Cohort
Patients received 20mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or a clinical observation satisfying another withdrawal criterion was noted. Treatment cycles occurred consecutively without interruption, except when necessary to manage AEs. All dose-escalation decisions were based on Cycle 1 safety data and doses were not escalated unless the patients receiving the highest current dose had been observed for at least 3 weeks.
1
Dose-escalation 40mg b.i.d. Cohort
Patients received 40mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or a clinical observation satisfying another withdrawal criterion was noted. Treatment cycles occurred consecutively without interruption, except when necessary to manage AEs. All dose-escalation decisions were based on Cycle 1 safety data and doses were not escalated unless the patients receiving the highest current dose had been observed for at least 3 weeks.
1
Dose-escalation 75mg b.i.d. Cohort
Patients received 75mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or a clinical observation satisfying another withdrawal criterion was noted. Treatment cycles occurred consecutively without interruption, except when necessary to manage AEs. All dose-escalation decisions were based on Cycle 1 safety data and doses were not escalated unless the patients receiving the highest current dose had been observed for at least 3 weeks.
1
Dose-escalation 150mg b.i.d. Cohort
Patients received 150mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or a clinical observation satisfying another withdrawal criterion was noted. Treatment cycles occurred consecutively without interruption, except when necessary to manage AEs. All dose-escalation decisions were based on Cycle 1 safety data and doses were not escalated unless the patients receiving the highest current dose had been observed for at least 3 weeks.
1
Dose-escalation 300mg b.i.d. Cohort
Patients received 300mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or a clinical observation satisfying another withdrawal criterion was noted. Treatment cycles occurred consecutively without interruption, except when necessary to manage AEs. All dose-escalation decisions were based on Cycle 1 safety data and doses were not escalated unless the patients receiving the highest current dose had been observed for at least 3 weeks.
4
Dose-escalation 600mg b.i.d. Cohort
Patients received 600mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or a clinical observation satisfying another withdrawal criterion was noted. Treatment cycles occurred consecutively without interruption, except when necessary to manage AEs. All dose-escalation decisions were based on Cycle 1 safety data and doses were not escalated unless the patients receiving the highest current dose had been observed for at least 3 weeks.
7
Dose-escalation 750mg b.i.d. Cohort
Patients received 750mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or a clinical observation satisfying another withdrawal criterion was noted. Treatment cycles occurred consecutively without interruption, except when necessary to manage AEs. All dose-escalation decisions were based on Cycle 1 safety data and doses were not escalated unless the patients receiving the highest current dose had been observed for at least 3 weeks.
4
Dose-escalation 900mg b.i.d. Cohort
Patients received 900mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or a clinical observation satisfying another withdrawal criterion was noted. Treatment cycles occurred consecutively without interruption, except when necessary to manage AEs. All dose-escalation decisions were based on Cycle 1 safety data and doses were not escalated unless the patients receiving the highest current dose had been observed for at least 3 weeks.
7
Cohort-expansion Group 1
Patients with BRAF mutated cancer, except those with colorectal or non-small cell lung cancers, not previously treated with BRAF and/or MEK inhibitors. Patients received 600mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or another withdrawal criterion was met. Treatment cycles occurred consecutively without interruption except when necessary to manage AEs.
24
Cohort-expansion Group 2
Patients with BRAF mutated colorectal cancer, not previously treated with BRAF and/or MEK inhibitors. Patients received 600mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or another withdrawal criterion was met. Treatment cycles occurred consecutively without interruption except when necessary to manage AEs.
17
Cohort-expansion Group 3
Patients with BRAF mutated melanoma who had progressed or were refractory to BRAF and/or MEK inhibitors. Patients received 600mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or another withdrawal criterion was met. Treatment cycles occurred consecutively without interruption except when necessary to manage AEs.
21
Cohort-expansion Group 4
Patients with NRAS mutated melanoma, not previously treated with BRAF and/or MEK inhibitors. Patients received 600mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or another withdrawal criterion was met. Treatment cycles occurred consecutively without interruption except when necessary to manage AEs.
22
Cohort-expansion Group 5
Patients with MEK mutated cancer, not previously treated with BRAF and/or MEK inhibitors. Patients received 600mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or another withdrawal criterion was met. Treatment cycles occurred consecutively without interruption except when necessary to manage AEs.
8
Cohort-expansion Group 6
Patients with BRAF mutated non-small cell lung cancer, not previously treated with BRAF and/or MEK inhibitors. Patients received 600mg oral doses of BVD 523 b.i.d. for 21 days (a Cycle). Patients received doses of BVD-523 until disease progression, unacceptable toxicity, or another withdrawal criterion was met. Treatment cycles occurred consecutively without interruption except when necessary to manage AEs.
16
Total135

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010FG011FG012FG013FG014FG015
Overall StudyDeath0000000001001010
Overall StudyDisease Progression101114746151515154110
Overall StudyEnrolled, but not treated0000000000100000
Overall StudyOther - as entered by PI in eCRF0100000001121110
Overall StudyPatient Condition Changed0000000004010100
Overall StudyUnacceptable Toxicity0000000000020000
Overall StudyWithdrawal by Subject0000000013115230

Baseline characteristics

CharacteristicTotalDose-escalation 20mg b.i.d. CohortDose-escalation 40mg b.i.d. CohortDose-escalation 75mg b.i.d. CohortDose-escalation 150mg b.i.d. CohortDose-escalation 300mg b.i.d. CohortDose-escalation 600mg b.i.d. CohortDose-escalation 750mg b.i.d. CohortDose-escalation 900mg b.i.d. CohortDose-escalation 10mg b.i.d. CohortCohort-expansion Group 1Cohort-expansion Group 2Cohort-expansion Group 3Cohort-expansion Group 4Cohort-expansion Group 5Cohort-expansion Group 6
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
63 Participants0 Participants0 Participants1 Participants1 Participants4 Participants4 Participants1 Participants1 Participants1 Participants12 Participants10 Participants5 Participants11 Participants2 Participants10 Participants
Age, Categorical
Between 18 and 65 years
72 Participants1 Participants1 Participants0 Participants0 Participants0 Participants3 Participants3 Participants6 Participants0 Participants12 Participants7 Participants16 Participants11 Participants6 Participants6 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants3 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
121 Participants1 Participants1 Participants1 Participants1 Participants4 Participants7 Participants4 Participants7 Participants1 Participants19 Participants15 Participants21 Participants16 Participants8 Participants15 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
11 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants5 Participants2 Participants0 Participants3 Participants0 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
6 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants2 Participants1 Participants0 Participants0 Participants2 Participants0 Participants
Race (NIH/OMB)
Black or African American
6 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants1 Participants0 Participants2 Participants0 Participants0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
6 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants1 Participants1 Participants3 Participants0 Participants0 Participants
Race (NIH/OMB)
White
117 Participants1 Participants1 Participants1 Participants1 Participants3 Participants7 Participants4 Participants5 Participants1 Participants19 Participants15 Participants20 Participants18 Participants6 Participants15 Participants
Region of Enrollment
United States
135 participants1 participants1 participants1 participants1 participants4 participants7 participants4 participants7 participants1 participants24 participants17 participants21 participants22 participants8 participants16 participants
Sex: Female, Male
Female
52 Participants0 Participants0 Participants0 Participants0 Participants1 Participants5 Participants1 Participants5 Participants1 Participants8 Participants7 Participants9 Participants5 Participants1 Participants9 Participants
Sex: Female, Male
Male
83 Participants1 Participants1 Participants1 Participants1 Participants3 Participants2 Participants3 Participants2 Participants0 Participants16 Participants10 Participants12 Participants17 Participants7 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
deaths
Total, all-cause mortality
0 / 10 / 10 / 10 / 10 / 10 / 40 / 70 / 40 / 73 / 108
other
Total, other adverse events
1 / 11 / 11 / 11 / 11 / 14 / 47 / 74 / 47 / 7107 / 108
serious
Total, serious adverse events
0 / 11 / 11 / 11 / 11 / 12 / 42 / 71 / 45 / 757 / 108

Outcome results

Primary

Determination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).

DLT is defined as any BVD-523 related toxicity in the first 21 days of treatment that results in: 1. ≥Grade 4 hematologic toxicity for \>1 day; 2. Grade 3 hematologic toxicity with complications e.g., thrombocytopenia with bleeding; 3. ≥Grade 3 non-hematologic toxicity, except untreated nausea, vomiting, constipation, pain and rash (these become DLTs if the adverse event (AE) persists despite adequate treatment), a doubling of aspartate transaminase (AST)/alanine transaminase (ALT) in patients with grade 2 ALT/AST at baseline; 4. A treatment interruption exceeding 5 days (or an interruption exceeding 7 days for rash, despite adequate treatment) in Cycle 1 (or inability to begin Cycle 2 for \> 7 days) due to BVD-523-related toxicity.

Time frame: As indicated by safety and tolerability during study conduct; ~42 months

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Dose-escalation 10mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsYes0 Participants
Dose-escalation 10mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityNo1 Participants
Dose-escalation 10mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTNo1 Participants
Dose-escalation 10mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTYes0 Participants
Dose-escalation 10mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityYes0 Participants
Dose-escalation 10mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsNo1 Participants
Dose-escalation 20mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityNo1 Participants
Dose-escalation 20mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityYes0 Participants
Dose-escalation 20mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTNo1 Participants
Dose-escalation 20mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsNo1 Participants
Dose-escalation 20mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsYes0 Participants
Dose-escalation 20mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTYes0 Participants
Dose-escalation 40mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsYes0 Participants
Dose-escalation 40mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityYes0 Participants
Dose-escalation 40mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityNo1 Participants
Dose-escalation 40mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsNo1 Participants
Dose-escalation 40mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTYes0 Participants
Dose-escalation 40mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTNo1 Participants
Dose-escalation 75mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTNo1 Participants
Dose-escalation 75mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTYes0 Participants
Dose-escalation 75mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsYes0 Participants
Dose-escalation 75mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsNo1 Participants
Dose-escalation 75mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityYes0 Participants
Dose-escalation 75mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityNo1 Participants
Dose-escalation 150mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTYes0 Participants
Dose-escalation 150mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityYes0 Participants
Dose-escalation 150mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsYes0 Participants
Dose-escalation 150mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsNo1 Participants
Dose-escalation 150mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityNo1 Participants
Dose-escalation 150mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTNo1 Participants
Dose-escalation 300mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsNo4 Participants
Dose-escalation 300mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTYes0 Participants
Dose-escalation 300mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityYes0 Participants
Dose-escalation 300mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityNo4 Participants
Dose-escalation 300mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsYes0 Participants
Dose-escalation 300mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTNo4 Participants
Dose-escalation 600mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsYes0 Participants
Dose-escalation 600mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTNo6 Participants
Dose-escalation 600mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityNo6 Participants
Dose-escalation 600mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsNo7 Participants
Dose-escalation 600mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityYes1 Participants
Dose-escalation 600mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTYes1 Participants
Dose-escalation 750mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityYes2 Participants
Dose-escalation 750mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsNo3 Participants
Dose-escalation 750mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsYes1 Participants
Dose-escalation 750mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTNo2 Participants
Dose-escalation 750mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityNo2 Participants
Dose-escalation 750mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTYes2 Participants
Dose-escalation 900mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityNo5 Participants
Dose-escalation 900mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).≥Grade 3 Non-Hematologic ToxicityYes2 Participants
Dose-escalation 900mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTYes2 Participants
Dose-escalation 900mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsNo5 Participants
Dose-escalation 900mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Grade 3 Hematologic Toxicity with ComplicationsYes2 Participants
Dose-escalation 900mg b.i.d. CohortDetermination of Recommended Phase 2 Dose (RP2D) of BVD-523 by Dose-limiting Toxicities (DLT).Any DLTNo5 Participants
Secondary

Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.

Data provided is for BVD-523.

Time frame: Samples will be collected on day 1 and day 15 of Cycle 1

Population: Day 1 - Dose-escalation 10mg b.i.d. patient was not calculable. Cohort-expansion numbers do not include those patients that were dose reduced and/or were not at a steady state with 600mg b.i.d. for the Day 15 draw.

ArmMeasureGroupValue (MEAN)Dispersion
Dose-escalation 10mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 1NA ng/mL
Dose-escalation 10mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 1545.7 ng/mL
Dose-escalation 20mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 114.9 ng/mL
Dose-escalation 20mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 1515.8 ng/mL
Dose-escalation 40mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 1100 ng/mL
Dose-escalation 40mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 15191 ng/mL
Dose-escalation 75mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 1133 ng/mL
Dose-escalation 75mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 15326 ng/mL
Dose-escalation 150mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 15459 ng/mL
Dose-escalation 150mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 1216 ng/mL
Dose-escalation 300mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 15586 ng/mLStandard Deviation 257
Dose-escalation 300mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 1765 ng/mLStandard Deviation 234
Dose-escalation 600mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 11110 ng/mLStandard Deviation 589
Dose-escalation 600mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 153090 ng/mLStandard Deviation 1570
Dose-escalation 750mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 11450 ng/mLStandard Deviation 539
Dose-escalation 750mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 152290 ng/mLStandard Deviation 1790
Dose-escalation 900mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 11430 ng/mLStandard Deviation 1010
Dose-escalation 900mg b.i.d. CohortCharacterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 151730 ng/mLStandard Deviation 401
Cohort-expansion Group 1Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 152440 ng/mLStandard Deviation 900
Cohort-expansion Group 1Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 11180 ng/mLStandard Deviation 501
Cohort-expansion Group 2Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 11260 ng/mLStandard Deviation 474
Cohort-expansion Group 2Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 151890 ng/mLStandard Deviation 953
Cohort-expansion Group 3Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 152340 ng/mLStandard Deviation 962
Cohort-expansion Group 3Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 11190 ng/mLStandard Deviation 467
Cohort-expansion Group 4Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 151890 ng/mLStandard Deviation 1060
Cohort-expansion Group 4Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 11230 ng/mLStandard Deviation 840
Cohort-expansion Group 5Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 11140 ng/mLStandard Deviation 423
Cohort-expansion Group 5Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 152050 ng/mLStandard Deviation 1570
Cohort-expansion Group 6Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 152680 ng/mLStandard Deviation 1520
Cohort-expansion Group 6Characterization of the Time Versus Plasma Concentration Profiles of BVD-523 and Selected Metabolites.Cmax Day 11560 ng/mLStandard Deviation 885
Secondary

Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.

At enrollment, all study patients had metastatic or advanced-stage malignant tumor for which no curative therapy was known to exist. Patients entering Part 2 additionally had to have measurable disease by RECIST version 1.1. Data shown is best response.

Time frame: Patients will be evaluated at baseline & at periodic follow-up visits through the time their participation in the study is completion. The best responses presented occurred at different time points for each patient.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Dose-escalation 10mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease1 Participants
Dose-escalation 10mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response0 Participants
Dose-escalation 10mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Dose-escalation 10mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease0 Participants
Dose-escalation 20mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response0 Participants
Dose-escalation 20mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease0 Participants
Dose-escalation 20mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Dose-escalation 20mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease1 Participants
Dose-escalation 40mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease0 Participants
Dose-escalation 40mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease1 Participants
Dose-escalation 40mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Dose-escalation 40mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response0 Participants
Dose-escalation 75mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response0 Participants
Dose-escalation 75mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Dose-escalation 75mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease0 Participants
Dose-escalation 75mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease1 Participants
Dose-escalation 150mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease0 Participants
Dose-escalation 150mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease1 Participants
Dose-escalation 150mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Dose-escalation 150mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response0 Participants
Dose-escalation 300mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease2 Participants
Dose-escalation 300mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response0 Participants
Dose-escalation 300mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease2 Participants
Dose-escalation 300mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Dose-escalation 600mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease1 Participants
Dose-escalation 600mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Dose-escalation 600mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response1 Participants
Dose-escalation 600mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease5 Participants
Dose-escalation 750mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease0 Participants
Dose-escalation 750mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response1 Participants
Dose-escalation 750mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Dose-escalation 750mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease3 Participants
Dose-escalation 900mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease4 Participants
Dose-escalation 900mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Dose-escalation 900mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response1 Participants
Dose-escalation 900mg b.i.d. CohortClinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease2 Participants
Cohort-expansion Group 1Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Cohort-expansion Group 1Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease4 Participants
Cohort-expansion Group 1Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response4 Participants
Cohort-expansion Group 1Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease14 Participants
Cohort-expansion Group 2Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response0 Participants
Cohort-expansion Group 2Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease5 Participants
Cohort-expansion Group 2Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Cohort-expansion Group 2Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease8 Participants
Cohort-expansion Group 3Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response1 Participants
Cohort-expansion Group 3Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease8 Participants
Cohort-expansion Group 3Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Cohort-expansion Group 3Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease6 Participants
Cohort-expansion Group 4Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease7 Participants
Cohort-expansion Group 4Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Cohort-expansion Group 4Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease9 Participants
Cohort-expansion Group 4Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response3 Participants
Cohort-expansion Group 5Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease3 Participants
Cohort-expansion Group 5Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Cohort-expansion Group 5Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response0 Participants
Cohort-expansion Group 5Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease2 Participants
Cohort-expansion Group 6Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Stable Disease9 Participants
Cohort-expansion Group 6Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Partial Response3 Participants
Cohort-expansion Group 6Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Complete Response0 Participants
Cohort-expansion Group 6Clinical Evidence of Tumor Response Assessed by Physical or Radiological Exam.Progressive Disease2 Participants
Other Pre-specified

Pharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)

RSK1, a member of the RSK serine/threonine kinase family, is a direct substrate of the MAP Kinases ERK1 & ERK2. RSK1 and ERK1/2 form an inactive complex in unstimulated cells. Upon activation of the mitogenic pathway, ERK1/2 phosphorylates Thr573, Thr359 and Ser363 on RSK1. Thr573 resides in the activation loop of the carboxy terminal kinase domain of RSK1 and once phosphorylated, enables RSK1 to autophosphorylate Ser380. Phosphorylation of Ser380 on RSK1 can therefore be used as a target biomarker for ERK1 and ERK2 activity. BVD-523 inhibits the activity of ERK. In this study, phosphorylation of RSK1 Ser 380 (pRSK) was used as a target biomarker for assessment of ERK inhibition by BVD-523 in human whole blood samples.

Time frame: Patients will be evaluated at baseline and on ~day 15 of Cycle 1

Population: The protocol was amended to stop collecting PD samples unless the patient consented to a tumor biopsy. Therefore, some patients did not have PD samples collected or did not consent to optional research tests involving collection of tumor tissue and blood/plasma samples.

ArmMeasureGroupValue (MEAN)Dispersion
Dose-escalation 10mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 1; pre-dose0.000 Enzyme inhibition (%)Standard Deviation 0
Dose-escalation 10mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 1; 4 hours post-dose82.162 Enzyme inhibition (%)Standard Deviation 27.3012
Dose-escalation 10mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 15; pre-dose94.607 Enzyme inhibition (%)Standard Deviation 9.9291
Dose-escalation 10mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 15; 4 hours post-dose91.419 Enzyme inhibition (%)Standard Deviation 13.9282
Dose-escalation 20mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 15; pre-dose66.667 Enzyme inhibition (%)Standard Deviation 57.735
Dose-escalation 20mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 1; 4 hours post-dose69.989 Enzyme inhibition (%)Standard Deviation 36.9362
Dose-escalation 20mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 1; pre-dose0.000 Enzyme inhibition (%)Standard Deviation 0
Dose-escalation 20mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 15; 4 hours post-dose56.554 Enzyme inhibition (%)Standard Deviation 51.2962
Dose-escalation 40mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 15; 4 hours post-dose87.624 Enzyme inhibition (%)Standard Deviation 26.0916
Dose-escalation 40mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 15; pre-dose78.679 Enzyme inhibition (%)Standard Deviation 37.6286
Dose-escalation 40mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 1; 4 hours post-dose87.563 Enzyme inhibition (%)Standard Deviation 26.8634
Dose-escalation 40mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 1; pre-dose0.000 Enzyme inhibition (%)Standard Deviation 0
Dose-escalation 75mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 1; pre-dose0.000 Enzyme inhibition (%)Standard Deviation 0
Dose-escalation 75mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 15; 4 hours post-dose98.902 Enzyme inhibition (%)Standard Deviation 3.4722
Dose-escalation 75mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 1; 4 hours post-dose96.868 Enzyme inhibition (%)Standard Deviation 5.8054
Dose-escalation 75mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 15; pre-dose91.955 Enzyme inhibition (%)Standard Deviation 21.5915
Dose-escalation 150mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 15; pre-dose89.050 Enzyme inhibition (%)Standard Deviation 18.966
Dose-escalation 150mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 15; 4 hours post-dose92.640 Enzyme inhibition (%)Standard Deviation 12.7479
Dose-escalation 150mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 1; 4 hours post-dose93.910 Enzyme inhibition (%)Standard Deviation 12.18
Dose-escalation 150mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 1; pre-dose0.000 Enzyme inhibition (%)Standard Deviation 0
Dose-escalation 300mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 1; 4 hours post-dose80.214 Enzyme inhibition (%)Standard Deviation 28.9393
Dose-escalation 300mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 15; pre-dose99.447 Enzyme inhibition (%)Standard Deviation 1.4627
Dose-escalation 300mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 15; 4 hours post-dose85.329 Enzyme inhibition (%)Standard Deviation 27.2781
Dose-escalation 300mg b.i.d. CohortPharmacodynamic (PD) Response Measured as Percentage Enzyme Inhibition of RSK1 Ser 380 (pRSK)Cycle 1, Day 1; pre-dose0.000 Enzyme inhibition (%)Standard Deviation 0

Source: ClinicalTrials.gov · Data processed: Mar 4, 2026