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A Phase 1, Open Label Study of Intravenous GSK3745417 to Evaluate Safety, Tolerability, Pharmacokinetics, Pharmacodynamics and Determine RP2D & Schedule in Participants With Relapsed or Refractory Myeloid Malignancies Including AML and HR MDS

A Phase 1, Open Label Study of Intravenous GSK3745417 to Evaluate Safety, Tolerability, Pharmacokinetics, Pharmacodynamics and Determine RP2D and Schedule in Participants With Relapsed or Refractory Myeloid Malignancies Including Acute Myeloid Leukemia (AML) and High-risk Myelodysplastic Syndrome (HR-MDS)

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05424380
Enrollment
18
Registered
2022-06-21
Start date
2022-09-20
Completion date
2024-03-04
Last updated
2025-03-25

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

Conditions

Leukemia, Myeloid, Acute

Keywords

GSK3745417, Acute myeloid leukemia, AML, high-risk myelodysplastic syndrome, HR-MDS

Brief summary

This is a Phase 1, open label, two-part study to determine recommended phase 2 dose (RP2D) and schedule of GSK3745417 administration in participants with relapsed/refractory AML or HR-MDS.

Interventions

GSK3745417 will be administered

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Participants must be ≥18 years of age and ≤75 years of age at the time of signing the informed consent for dose escalation and \>18 years of age at the time of signing the informed consent for the dose expansion. * Participants must be capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in the protocol. * Participants must have Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. * Participants with AML/HR MDS are eligible for participation in Part 1 and Part 2 if they have: 1. A diagnosis of AML according to the World Health Organization 2016 criteria with relapsed or refractory disease and ineligible for or have exhausted standard therapeutic options. 2. Have high-risk or high/very high by Revised International Prognostic Scoring System (IPSS-R) for MDS (restricted to Part 1) that has relapsed after or been refractory to prior therapy with hypomethylating agent. * Participants with a prior history of stem cell transplant (autologous and/or allogeneic) are allowed if: No clinical signs or symptoms of graft versus host disease (other than Grade 1 GVHD (\<25% skin surface affected) and the participant is off all systemic immunosuppression. (Note: topical steroids for G1 skin GVHD are permitted on study) * Participants must agree to abide by the gender specific contraceptive requirements below: Female participants are eligible to participate if they are not either pregnant or breastfeeding, and at least one of the following conditions applies: 1. Is not a woman of childbearing potential (WOCBP), or 2. Is a WOCBP and using a contraceptive method that is highly effective (with a failure rate of \<1% per year), The effectiveness of the contraceptive method will be evaluated by the investigator in relationship to the first dose of study treatment.

Exclusion criteria

* Diagnosis of acute promyelocytic leukemia (APML or t(15;17) PML-RARA fusion). Patients with biphenotypic disease are excluded. * Active central nervous system (CNS) involvement or disorder; and well controlled with ongoing treatment * Participants with Immediate life-threatening, severe complications of leukemia (sepsis, hemorrhage). * Participants with extramedullary disease as the sole site of AML * Participants with active severe or uncontrolled infection, * Participants with active autoimmune disease that has required systemic disease modifying or immunosuppressive treatment within the last 2 years. * Participants with concurrent medical condition requiring the use of systemic immunosuppressive treatment within 28 days before the first dose of study treatment. * Participants with history of vasculitis at any time prior to study treatment. * Participant with a history of other malignancies less than 2 years prior to study entry, * Participants with QT interval corrected using Fridericia's formula (QTcF) \>450 millisecond (msec) for male participants, \>470 msec for female participants, or \>480 msec for participants with bundle branch block. * Participants with recent history of allergen desensitization therapy within 4 weeks of starting study treatment. * Participants with history or evidence of cardiovascular (CV) risk history of immune myocarditis or pericarditis. * Participants with prior STING therapy. * Participants with prior solid organ transplantation. * Participants with recent prior therapy defined as follows: any non-monoclonal anti-cancer therapy within 14 days or 5 half-lives, whichever is longer, prior to start of study treatment; prior therapy with biological agents (including monoclonal antibodies) within 28 days prior to start of study treatment; any radiotherapy or major surgery within 14 days prior to start of study treatment; currently receiving investigational therapy in a clinical trial * Participants with immune-related toxicity related to prior treatment that has not resolved to Grade ≤1 (except alopecia, hearing loss or Grade ≤2 neuropathy or endocrinopathy managed with replacement therapy).

Design outcomes

Primary

MeasureTime frameDescription
Part 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)Up to 11.3 weeksAn AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. SAE is defined as any untoward medical occurrence that, at any dose resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, or is a congenital anomaly/birth defect, other situations which involved medical or scientific judgment. A TEAE is an event that emerges during treatment having been absent pretreatment or worsens relative to the pretreatment state.
Part 1: Number of Participants With TEAEs and TESAEs by Severity GradesUp to 11.3 weeksAE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. SAE is defined as any untoward medical occurrence that, at any dose resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, or is a congenital anomaly/birth defect, other situations which involved medical or scientific judgment. TEAE is an event that emerges during treatment having been absent pretreatment or worsens relative to the pretreatment state. AEs were graded by the investigator according to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) (version 5.0): Grade(G) 1=Mild, G2=Moderate, G3=Severe or medically significant but not immediately life-threatening, G4=Life-threatening consequences, G5=Death related AE.
Part 1: Number of Participants With Dose Limiting Toxicities (DLT)Up to 28 daysAn AE is considered to be a DLT if it is considered by the investigator to be clinically relevant and attributed (definitely, probably, or possibly) to the study intervention and meets at least 1 of the criteria listed below. Criteria for DLT included Grade(G)3 or 4 Cytokine Release Syndrome (CRS); G3 or 4 tumor lysis syndrome (TLS) that cannot be managed/ is not resolved within 72 hours (h); Liver Toxicity included Alanine aminotransferase (ALT)\>=3\* upper limit of normal (ULN), plus bilirubin\>=2\* ULN (\>35 percent \[%\] direct) or plus international normalized ratio (INR)\>1.5 (Possible Hy's law); G\>=3 non-hematologic toxicity of any duration; G\>=3 immune-related toxicity that does not resolve to G\<=1 or Baseline within 8 days despite adequate immune suppressive therapy. Any other event which in the judgment of the investigator and GSK Medical Monitor is considered to be a DLT.
Part 1: Number of Participants With Withdrawals Due to AEsUp to 11.3 weeksAn AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment.
Part 2: Objective Response Rate (ORR)Up to Day 84Overall response rate (ORR) defined as the percentage of participants with a complete remission (CR), CR with incomplete platelet recovery (CRp), incomplete count recovery (CRi), or a partial remission (PR) as per response criteria for AML and HR-MDS. CR=The participant must achieve a morphologic leukemia-free state (\<= 5% blasts) and have no evidence of extramedullary disease. The participant must be free of all symptoms related to leukemia, have an absolute neutrophil count \>= 1\*10\^9/Liter (L) and platelet count \>=100\*10\^9/L, and be transfusion independent. CRp: Marrow response as per CR but platelet count \<100 × 10\^9/L. CRi: Marrow response as per CR but platelet count \<100\*10\^9/L or neutrophil count \<1\*10\^9/L. PR=A decrease from Baseline of at least 50% in the number of bone marrow blasts, to between 5% and 25% of the bone marrow aspirate.
Part 2: Number of Participants With TEAEs and TESAEsUp to 49 weeksAn AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. SAE is defined as any untoward medical occurrence that, at any dose resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, or is a congenital anomaly/birth defect, other situations which involved medical or scientific judgment. A TEAE is an event that emerges during treatment having been absent pretreatment or worsens relative to the pretreatment state.
Part 2: Number of Participants With TEAEs and TESAEs by Severity GradesUp to 49 weeksAE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. SAE is defined as any untoward medical occurrence that, at any dose resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, or is a congenital anomaly/birth defect, other situations which involved medical or scientific judgment. TEAE is an event that emerges during treatment having been absent pretreatment or worsens relative to the pretreatment state. AEs were graded by the investigator according to NCI-CTCAE (version 5.0): G1=Mild, G2=Moderate, G3=Severe or medically significant but not immediately life-threatening, G4=Life-threatening consequences, G5=Death related AE.
Part 2: Number of Participants With Dose Limiting Toxicities (DLT)Up to 28 daysAn AE is considered to be a DLT if it is considered by the investigator to be clinically relevant and attributed (definitely, probably, or possibly) to the study intervention and meets at least 1 of the criteria listed below. Criteria for DLT included Grade(G)3 or 4 Cytokine Release Syndrome (CRS); G3 or 4 TLS that cannot be managed/ is not resolved within 72 hours (h); Liver Toxicity included ALT\>=3\*upper limit of normal (ULN), plus bilirubin\>=2\*ULN (\>35% direct) or plus international normalized ratio (INR)\>1.5 (Possible Hy's law); G\>=3 non-hematologic toxicity of any duration; G\>=3 immune-related toxicity that does not resolve to G\<=1 or Baseline within 8 days despite adequate immune suppressive therapy. Any other event which in the judgment of the investigator and GSK Medical Monitor is considered to be a DLT.
Part 2: Number of Participants With Withdrawals Due to AEsUp to 49 weeksAn AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment.

Secondary

MeasureTime frameDescription
Part 1: AUC(0-infinity) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: AUC(0-infinity) Following Administration of GSK3745417 100 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: AUC(0-infinity) Following Administration of GSK3745417 300 µgPre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 100 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 300 µgPre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 100 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 300 µgPre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 100 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 300 µgPre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Volume of Distribution (V) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Volume of Distribution (V) Following Administration of GSK3745417 100 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Volume of Distribution (V) Following Administration of GSK3745417 300 µgPre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 2: Number of Participants With AEs, SAEs and Adverse Events of Special Interest (AESIs) Leading to Dose Modification and Dose DelaysUp to 49 weeksAn AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. SAE is defined as any untoward medical occurrence that, at any dose resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, or is a congenital anomaly/birth defect, other situations which involved medical or scientific judgment. AESI includes events that were immune-related or related to Cytokine Release Syndrome or tumor lysis syndrome.
Part 2: Cmax Following Administration of GSK3745417Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 12.5 µg, 25 ug, 50 µg and 200 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5Blood samples were collected at indicated time points for pharmacokinetic (PK) analysis of GSK3745417.
Part 2: AUC(0-tau) Following Administration of GSK3745417Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 2: AUC(0-infinity) Following Administration of GSK3745417Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 2: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 2: Terminal Phase Half-life (t1/2) Following Administration of Single Dose GSK3745417Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 2: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 2: Volume of Distribution (V) Following Administration of GSK3745417Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 2: AUC(0-t) Following Administration of GSK3745417Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 100 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 300 µgPre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 100 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 300 µgPre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: AUC (0-tau) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: AUC (0-tau) Following Administration of GSK3745417 100 µgPre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.
Part 1: AUC (0-tau) Following Administration of GSK3745417 300 µgPre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Countries

Canada, Germany, Italy, Netherlands, Spain

Participant flow

Recruitment details

The study conducted in a staged approach consisting of 2 parts. This study was terminated due to termination of asset after Part 1. Hence, no participants were enrolled in Part 2 of the study.

Pre-assignment details

A total of 18 participants were enrolled in Part 1 of the study.

Participants by arm

ArmCount
Part 1: Cohort 1: GSK3745417 12.5 ug Followed by 25 ug Followed by 50 ug
Participants with relapsed or refractory acute myeloid leukemia (AML) and high-risk myelodysplastic syndrome (HR-MDS) received GSK3745417 12.5 microgram (ug), powder for solution as intravenous (IV) injection from Days 1 to 28 (Cycle 1) followed by GSK3745417 25 ug, powder for solution as IV injection from Days 29 to 57 (Cycle 2); further followed by GSK3745417 50 ug, powder for solution as IV injection from Days 58 to 86 (Cycle 3). Each cycle was of 28 days.
4
Part 1: Cohort 2: GSK3745417 25 ug Followed by 50 ug Followed by 100 ug
Participants with relapsed or refractory AML and HR-MDS received GSK3745417 25 ug, powder for solution as IV injection from Days 1 to 28 (Cycle 1) followed by GSK3745417 50 ug, powder for solution as IV injection from Days 29 to 57 (Cycle 2); further followed by GSK3745417 100 ug, powder for solution as IV injection from Days 58 to 86 (Cycle 3). Each cycle was of 28 days.
3
Part 1: Cohort 3: GSK3745417 50 ug Followed by 100 ug Followed by 200 ug
Participants with relapsed or refractory AML and HR-MDS received GSK3745417 50 ug, powder for solution as IV injection from Days 1 to 28 (Cycle 1) followed by GSK3745417 100 ug, powder for solution as IV injection from Days 29 to 57 (Cycle 2); further followed by GSK3745417 200 ug, powder for solution as IV injection from Days 58 to 86 (Cycle 3). Each cycle was of 28 days.
3
Part 1: Cohort 4: GSK3745417 100 ug Followed by 200 ug Followed by 300 ug
Participants with relapsed or refractory AML and HR-MDS received GSK3745417 100 ug, powder for solution as IV injection from Days 1 to 28 (Cycle 1) followed by GSK3745417 200 ug, powder for solution as IV injection from Days 29 to 57 (Cycle 2); further followed by GSK3745417 300 ug, powder for solution as IV injection from Days 58 to 86 (Cycle 3). Each cycle was of 28 days.
3
Part 1: Cohort 5: GSK3745417 200 ug Followed by 300 ug Followed by 300 ug
Participants with relapsed or refractory AML and HR-MDS received GSK3745417 200 ug, powder for solution as IV injection from Days 1 to 28 (Cycle 1) followed by GSK3745417 300 ug, powder for solution as IV injection from Days 29 to 57 (Cycle 2); further followed by GSK3745417 300 ug, powder for solution as IV injection from Days 58 to 86 (Cycle 3). Each cycle was of 28 days.
5
Part 2: GSK3745417
Participants in Part 2 with relapsed or refractory AML and HR-MDS were planned to receive GSK3745417 starting at the maximum tolerated dose determined from Part 1 of the study.
0
Total18

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Part 1: Cohort 1: 12.5 ug (Days 1 to 28)Death100000
Part 1: Cohort 1: 25 ug (Days 29 to 57)Death100000
Part 1: Cohort 1: 50 ug (Days 58 to 86)Death100000
Part 1: Cohort 2: 100 ug (Days 58 to 86)Death010000
Part 1: Cohort 2: 25 ug (Days 1 to 28)Death010000
Part 1: Cohort 3: 100 ug (Days 29 to 57)Death001000
Part 1: Cohort 3: 100 ug (Days 29 to 57)Withdrawal by Subject001000
Part 1: Cohort 3: 200 ug (Days 58 to 86)Death001000
Part 1: Cohort 4:100 ug (Days 1 to 28)Withdrawal by Subject000100
Part 1: Cohort 4: 200 ug (Days 29 to 57)Death000100
Part 1: Cohort 4: 300 ug (Days 58 to 86)Withdrawal by Subject000100
Part 1: Cohort 5: 200 ug (Days 1 to 28)Death000030
Part 1: Cohort 5: 200 ug (Days 1 to 28)Withdrawal by Subject000010
Part 1: Cohort 5: 300 ug (Days 58 to 86)Death000010

Baseline characteristics

CharacteristicPart 1: Cohort 1: GSK3745417 12.5 ug Followed by 25 ug Followed by 50 ugPart 1: Cohort 2: GSK3745417 25 ug Followed by 50 ug Followed by 100 ugPart 1: Cohort 3: GSK3745417 50 ug Followed by 100 ug Followed by 200 ugPart 1: Cohort 4: GSK3745417 100 ug Followed by 200 ug Followed by 300 ugPart 1: Cohort 5: GSK3745417 200 ug Followed by 300 ug Followed by 300 ugTotal
Age, Continuous44.0 YEARS
STANDARD_DEVIATION 17.11
71.3 YEARS
STANDARD_DEVIATION 4.73
69.7 YEARS
STANDARD_DEVIATION 4.04
53.7 YEARS
STANDARD_DEVIATION 15.31
67.0 YEARS
STANDARD_DEVIATION 7.07
60.8 YEARS
STANDARD_DEVIATION 14.69
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants3 Participants3 Participants3 Participants5 Participants18 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Sex/Gender, Customized
Female
2 Participants2 Participants1 Participants1 Participants2 Participants8 Participants
Sex/Gender, Customized
Male
2 Participants1 Participants2 Participants2 Participants3 Participants10 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
deaths
Total, all-cause mortality
1 / 42 / 61 / 62 / 85 / 81 / 20 / 0
other
Total, other adverse events
3 / 45 / 65 / 67 / 88 / 82 / 20 / 0
serious
Total, serious adverse events
4 / 44 / 61 / 65 / 85 / 81 / 20 / 0

Outcome results

Primary

Part 1: Number of Participants With Dose Limiting Toxicities (DLT)

An AE is considered to be a DLT if it is considered by the investigator to be clinically relevant and attributed (definitely, probably, or possibly) to the study intervention and meets at least 1 of the criteria listed below. Criteria for DLT included Grade(G)3 or 4 Cytokine Release Syndrome (CRS); G3 or 4 tumor lysis syndrome (TLS) that cannot be managed/ is not resolved within 72 hours (h); Liver Toxicity included Alanine aminotransferase (ALT)\>=3\* upper limit of normal (ULN), plus bilirubin\>=2\* ULN (\>35 percent \[%\] direct) or plus international normalized ratio (INR)\>1.5 (Possible Hy's law); G\>=3 non-hematologic toxicity of any duration; G\>=3 immune-related toxicity that does not resolve to G\<=1 or Baseline within 8 days despite adequate immune suppressive therapy. Any other event which in the judgment of the investigator and GSK Medical Monitor is considered to be a DLT.

Time frame: Up to 28 days

Population: DLT-evaluable Population included all participants who took at least 1 dose of study intervention and followed for the DLT observation period or were withdrawn within the DLT observation period due to meeting the DLT criteria.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With Dose Limiting Toxicities (DLT)0 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With Dose Limiting Toxicities (DLT)0 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With Dose Limiting Toxicities (DLT)0 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With Dose Limiting Toxicities (DLT)0 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With Dose Limiting Toxicities (DLT)0 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With Dose Limiting Toxicities (DLT)0 Participants
Primary

Part 1: Number of Participants With TEAEs and TESAEs by Severity Grades

AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. SAE is defined as any untoward medical occurrence that, at any dose resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, or is a congenital anomaly/birth defect, other situations which involved medical or scientific judgment. TEAE is an event that emerges during treatment having been absent pretreatment or worsens relative to the pretreatment state. AEs were graded by the investigator according to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) (version 5.0): Grade(G) 1=Mild, G2=Moderate, G3=Severe or medically significant but not immediately life-threatening, G4=Life-threatening consequences, G5=Death related AE.

Time frame: Up to 11.3 weeks

Population: Safety Population

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 41 Participants
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 33 Participants
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 50 Participants
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 40 Participants
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 33 Participants
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 21 Participants
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 20 Participants
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 10 Participants
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 10 Participants
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 50 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 22 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 10 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 31 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 41 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 52 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 11 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 20 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 31 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 40 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 52 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 42 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 30 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 10 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 50 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 31 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 22 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 11 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 40 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 50 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 20 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 20 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 33 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 20 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 51 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 40 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 11 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 11 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 51 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 40 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 36 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 21 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 42 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 51 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 10 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 11 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 32 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 51 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 41 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 33 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 21 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 10 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 50 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 20 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 31 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 50 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 20 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 41 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 31 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTEAEs, Grade 10 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With TEAEs and TESAEs by Severity GradesTESAEs, Grade 40 Participants
Primary

Part 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. SAE is defined as any untoward medical occurrence that, at any dose resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, or is a congenital anomaly/birth defect, other situations which involved medical or scientific judgment. A TEAE is an event that emerges during treatment having been absent pretreatment or worsens relative to the pretreatment state.

Time frame: Up to 11.3 weeks

Population: Safety Population included all participants who took at least 1 dose of study intervention.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)TEAEs4 Participants
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)TESAEs4 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)TEAEs6 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)TESAEs4 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)TEAEs5 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)TESAEs1 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)TEAEs8 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)TESAEs5 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)TEAEs8 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)TESAEs5 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)TEAEs2 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With Treatment-emergent (TE) Adverse Events (AEs) and TE Serious AEs (SAEs)TESAEs1 Participants
Primary

Part 1: Number of Participants With Withdrawals Due to AEs

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment.

Time frame: Up to 11.3 weeks

Population: Safety Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part 1: GSK3745417 12.5 ugPart 1: Number of Participants With Withdrawals Due to AEs0 Participants
Part 1: GSK3745417 25 ugPart 1: Number of Participants With Withdrawals Due to AEs0 Participants
Part 1: GSK3745417 50 ugPart 1: Number of Participants With Withdrawals Due to AEs0 Participants
Part 1: GSK3745417 100 ugPart 1: Number of Participants With Withdrawals Due to AEs0 Participants
Part 1: GSK3745417 200 ugPart 1: Number of Participants With Withdrawals Due to AEs0 Participants
Part 1: GSK3745417 300 ugPart 1: Number of Participants With Withdrawals Due to AEs0 Participants
Primary

Part 2: Number of Participants With Dose Limiting Toxicities (DLT)

An AE is considered to be a DLT if it is considered by the investigator to be clinically relevant and attributed (definitely, probably, or possibly) to the study intervention and meets at least 1 of the criteria listed below. Criteria for DLT included Grade(G)3 or 4 Cytokine Release Syndrome (CRS); G3 or 4 TLS that cannot be managed/ is not resolved within 72 hours (h); Liver Toxicity included ALT\>=3\*upper limit of normal (ULN), plus bilirubin\>=2\*ULN (\>35% direct) or plus international normalized ratio (INR)\>1.5 (Possible Hy's law); G\>=3 non-hematologic toxicity of any duration; G\>=3 immune-related toxicity that does not resolve to G\<=1 or Baseline within 8 days despite adequate immune suppressive therapy. Any other event which in the judgment of the investigator and GSK Medical Monitor is considered to be a DLT.

Time frame: Up to 28 days

Population: Safety Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Primary

Part 2: Number of Participants With TEAEs and TESAEs

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. SAE is defined as any untoward medical occurrence that, at any dose resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, or is a congenital anomaly/birth defect, other situations which involved medical or scientific judgment. A TEAE is an event that emerges during treatment having been absent pretreatment or worsens relative to the pretreatment state.

Time frame: Up to 49 weeks

Population: Safety Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Primary

Part 2: Number of Participants With TEAEs and TESAEs by Severity Grades

AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. SAE is defined as any untoward medical occurrence that, at any dose resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, or is a congenital anomaly/birth defect, other situations which involved medical or scientific judgment. TEAE is an event that emerges during treatment having been absent pretreatment or worsens relative to the pretreatment state. AEs were graded by the investigator according to NCI-CTCAE (version 5.0): G1=Mild, G2=Moderate, G3=Severe or medically significant but not immediately life-threatening, G4=Life-threatening consequences, G5=Death related AE.

Time frame: Up to 49 weeks

Population: Safety Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Primary

Part 2: Number of Participants With Withdrawals Due to AEs

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment.

Time frame: Up to 49 weeks

Population: Safety Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Primary

Part 2: Objective Response Rate (ORR)

Overall response rate (ORR) defined as the percentage of participants with a complete remission (CR), CR with incomplete platelet recovery (CRp), incomplete count recovery (CRi), or a partial remission (PR) as per response criteria for AML and HR-MDS. CR=The participant must achieve a morphologic leukemia-free state (\<= 5% blasts) and have no evidence of extramedullary disease. The participant must be free of all symptoms related to leukemia, have an absolute neutrophil count \>= 1\*10\^9/Liter (L) and platelet count \>=100\*10\^9/L, and be transfusion independent. CRp: Marrow response as per CR but platelet count \<100 × 10\^9/L. CRi: Marrow response as per CR but platelet count \<100\*10\^9/L or neutrophil count \<1\*10\^9/L. PR=A decrease from Baseline of at least 50% in the number of bone marrow blasts, to between 5% and 25% of the bone marrow aspirate.

Time frame: Up to Day 84

Population: Safety Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Secondary

Part 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 100 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 100 µgDAY 173.7605 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 102.0968
Part 1: GSK3745417 12.5 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 100 µgDAY 5129.1817 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 133.3992
Part 1: GSK3745417 12.5 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 100 µgDAY 888.3060 Hour*nanogram/milliliter (h*ng/mL)
Part 1: GSK3745417 12.5 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 100 µgDAY 12246.3285 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 273.1186
Secondary

Part 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 121.7427 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 57.6324
Part 1: GSK3745417 12.5 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 524.5192 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 70.8547
Part 1: GSK3745417 25 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 553.4229 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 75.0209
Part 1: GSK3745417 25 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 118.3426 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 105.4447
Part 1: GSK3745417 50 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 139.7661 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 86.7711
Part 1: GSK3745417 50 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 540.3425 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 46.5663
Part 1: GSK3745417 100 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 1115.7833 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 86.2087
Part 1: GSK3745417 100 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 5269.2527 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 97.8566
Secondary

Part 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 300 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 300 µgDAY 1111.0980 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 17.4746
Part 1: GSK3745417 12.5 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 300 µgDAY 5156.7682 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 21.7702
Part 1: GSK3745417 12.5 ugPart 1: Area Under the Concentration-time Curve AUC(0-t) Following Administration of GSK3745417 300 µgDAY 8177.0957 Hour*nanogram/milliliter (h*ng/mL)
Secondary

Part 1: AUC(0-infinity) Following Administration of GSK3745417 100 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 100 µgDAY 182.4501 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 122.0638
Part 1: GSK3745417 12.5 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 100 µgDAY 5149.6791 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 171.2285
Part 1: GSK3745417 12.5 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 100 µgDAY 891.6906 Hour*nanogram/milliliter (h*ng/mL)
Part 1: GSK3745417 12.5 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 100 µgDAY 1292.8915 Hour*nanogram/milliliter (h*ng/mL)
Secondary

Part 1: AUC(0-infinity) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 124.1814 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 58.7275
Part 1: GSK3745417 12.5 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 532.1932 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 85.8221
Part 1: GSK3745417 25 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 561.4040 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 89.9314
Part 1: GSK3745417 25 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 119.7396 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 111.3832
Part 1: GSK3745417 50 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 144.1762 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 110.0662
Part 1: GSK3745417 50 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 542.2109 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 48.0113
Part 1: GSK3745417 100 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 1124.8946 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 103.5148
Part 1: GSK3745417 100 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 5302.1566 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 119.5787
Secondary

Part 1: AUC(0-infinity) Following Administration of GSK3745417 300 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 300 µgDAY 1113.4262 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 17.3464
Part 1: GSK3745417 12.5 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 300 µgDAY 5161.3749 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 23.9753
Part 1: GSK3745417 12.5 ugPart 1: AUC(0-infinity) Following Administration of GSK3745417 300 µgDAY 8179.2585 Hour*nanogram/milliliter (h*ng/mL)
Secondary

Part 1: AUC (0-tau) Following Administration of GSK3745417 100 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 100 µgDAY 175.4673 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 103.4499
Part 1: GSK3745417 12.5 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 100 µgDAY 5129.6654 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 134.9177
Part 1: GSK3745417 12.5 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 100 µgDAY 888.4344 Hour*nanogram/milliliter (h*ng/mL)
Part 1: GSK3745417 12.5 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 100 µgDAY 12247.2046 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 272.271
Secondary

Part 1: AUC (0-tau) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 122.0086 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 58.5871
Part 1: GSK3745417 12.5 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 524.4250 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 71.8245
Part 1: GSK3745417 25 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 553.6275 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 75.3947
Part 1: GSK3745417 25 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 118.6671 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 101.466
Part 1: GSK3745417 50 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 140.4989 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 86.3765
Part 1: GSK3745417 50 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 540.5395 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 46.3785
Part 1: GSK3745417 100 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 1116.0595 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 86.0517
Part 1: GSK3745417 100 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 5267.9373 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 98.1167
Secondary

Part 1: AUC (0-tau) Following Administration of GSK3745417 300 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 300 µgDAY 1111.2544 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 17.7235
Part 1: GSK3745417 12.5 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 300 µgDAY 5157.0654 Hour*nanogram/milliliter (h*ng/mL)Geometric Coefficient of Variation 21.6207
Part 1: GSK3745417 12.5 ugPart 1: AUC (0-tau) Following Administration of GSK3745417 300 µgDAY 8177.2807 Hour*nanogram/milliliter (h*ng/mL)
Secondary

Part 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 100 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 100 µgDAY 123.4043 Nanogram/milliliter (ng/mL)Geometric Coefficient of Variation 34.986
Part 1: GSK3745417 12.5 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 100 µgDAY 527.9947 Nanogram/milliliter (ng/mL)Geometric Coefficient of Variation 33.7584
Part 1: GSK3745417 12.5 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 100 µgDAY 820.7000 Nanogram/milliliter (ng/mL)
Part 1: GSK3745417 12.5 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 100 µgDAY 1237.9700 Nanogram/milliliter (ng/mL)Geometric Coefficient of Variation 50.5418
Secondary

Part 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 12.5 µg, 25 ug, 50 µg and 200 µg

Blood samples were collected at indicated time points for pharmacokinetic (PK) analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5

Population: Pharmacokinetic (PK) Population included all participants from the Safety Analysis Set for whom a PK sample was obtained and analyzed. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 12.5 µg, 25 ug, 50 µg and 200 µgDAY 14.0437 Nanogram/milliliter (ng/mL)Geometric Coefficient of Variation 63.1268
Part 1: GSK3745417 12.5 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 12.5 µg, 25 ug, 50 µg and 200 µgDAY 53.3922 Nanogram/milliliter (ng/mL)Geometric Coefficient of Variation 76.7856
Part 1: GSK3745417 25 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 12.5 µg, 25 ug, 50 µg and 200 µgDAY 59.9633 Nanogram/milliliter (ng/mL)Geometric Coefficient of Variation 50.2486
Part 1: GSK3745417 25 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 12.5 µg, 25 ug, 50 µg and 200 µgDAY 15.3407 Nanogram/milliliter (ng/mL)Geometric Coefficient of Variation 18.6391
Part 1: GSK3745417 50 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 12.5 µg, 25 ug, 50 µg and 200 µgDAY 111.4244 Nanogram/milliliter (ng/mL)Geometric Coefficient of Variation 15.6862
Part 1: GSK3745417 50 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 12.5 µg, 25 ug, 50 µg and 200 µgDAY 511.7986 Nanogram/milliliter (ng/mL)Geometric Coefficient of Variation 12.9766
Part 1: GSK3745417 100 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 12.5 µg, 25 ug, 50 µg and 200 µgDAY 149.8671 Nanogram/milliliter (ng/mL)Geometric Coefficient of Variation 25.7641
Part 1: GSK3745417 100 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 12.5 µg, 25 ug, 50 µg and 200 µgDAY 555.8182 Nanogram/milliliter (ng/mL)Geometric Coefficient of Variation 32.3703
Secondary

Part 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 300 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 300 µgDAY 160.0576 Nanogram/milliliter (ng/mL)Geometric Coefficient of Variation 18.6563
Part 1: GSK3745417 12.5 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 300 µgDAY 583.6227 Nanogram/milliliter (ng/mL)Geometric Coefficient of Variation 13.7291
Part 1: GSK3745417 12.5 ugPart 1: Maximum Concentration (Cmax) Following Administration of GSK3745417 300 µgDAY 895.6000 Nanogram/milliliter (ng/mL)
Secondary

Part 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 100 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 100 µgDAY 11.2121 Liter/hour (L/h)Geometric Coefficient of Variation 121.9357
Part 1: GSK3745417 12.5 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 100 µgDAY 50.6681 Liter/hour (L/h)Geometric Coefficient of Variation 171.2285
Part 1: GSK3745417 12.5 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 100 µgDAY 81.0906 Liter/hour (L/h)
Part 1: GSK3745417 12.5 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 100 µgDAY 120.2935 Liter/hour (L/h)Geometric Coefficient of Variation 532.2277
Secondary

Part 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 10.5169 Liter/hour (L/h)Geometric Coefficient of Variation 58.7275
Part 1: GSK3745417 12.5 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 50.3883 Liter/hour (L/h)Geometric Coefficient of Variation 85.8221
Part 1: GSK3745417 25 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 50.4090 Liter/hour (L/h)Geometric Coefficient of Variation 89.8847
Part 1: GSK3745417 25 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 11.2669 Liter/hour (L/h)Geometric Coefficient of Variation 110.9895
Part 1: GSK3745417 50 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 11.1313 Liter/hour (L/h)Geometric Coefficient of Variation 109.9904
Part 1: GSK3745417 50 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 51.1870 Liter/hour (L/h)Geometric Coefficient of Variation 48.4302
Part 1: GSK3745417 100 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 11.5982 Liter/hour (L/h)Geometric Coefficient of Variation 103.1281
Part 1: GSK3745417 100 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 50.8532 Liter/hour (L/h)Geometric Coefficient of Variation 140.7702
Secondary

Part 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 300 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 300 µgDAY 12.6516 Liter/hour (L/h)Geometric Coefficient of Variation 17.5162
Part 1: GSK3745417 12.5 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 300 µgDAY 51.8769 Liter/hour (L/h)Geometric Coefficient of Variation 22.2726
Part 1: GSK3745417 12.5 ugPart 1: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417 300 µgDAY 81.6736 Liter/hour (L/h)
Secondary

Part 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 100 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 100 µgDAY 10.1400 1/hourGeometric Coefficient of Variation 114.8419
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 100 µgDAY 50.0862 1/hourGeometric Coefficient of Variation 43.9385
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 100 µgDAY 80.1300 1/hour
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 100 µgDAY 120.0603 1/hourGeometric Coefficient of Variation 100.8393
Secondary

Part 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 10.0958 1/hourGeometric Coefficient of Variation 14.0287
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 50.0564 1/hourGeometric Coefficient of Variation 23.4595
Part 1: GSK3745417 25 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 50.0902 1/hourGeometric Coefficient of Variation 41.2921
Part 1: GSK3745417 25 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 10.1879 1/hourGeometric Coefficient of Variation 122.94
Part 1: GSK3745417 50 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 10.1614 1/hourGeometric Coefficient of Variation 100.3767
Part 1: GSK3745417 50 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 50.1233 1/hourGeometric Coefficient of Variation 7.5634
Part 1: GSK3745417 100 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 10.1106 1/hourGeometric Coefficient of Variation 98.3724
Part 1: GSK3745417 100 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 50.0924 1/hourGeometric Coefficient of Variation 36.4027
Secondary

Part 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 300 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 300 µgDAY 10.0978 1/hourGeometric Coefficient of Variation 39.1392
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 300 µgDAY 50.1237 1/hourGeometric Coefficient of Variation 39.151
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417 300 µgDAY 80.1512 1/hour
Secondary

Part 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 100 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 100 µgDAY 14.9494 Hour (h)Geometric Coefficient of Variation 114.8419
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 100 µgDAY 58.0420 Hour (h)Geometric Coefficient of Variation 43.9385
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 100 µgDAY 85.3318 Hour (h)
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 100 µgDAY 1211.4948 Hour (h)Geometric Coefficient of Variation 100.8393
Secondary

Part 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 17.2332 Hour (h)Geometric Coefficient of Variation 14.0287
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 512.2931 Hour (h)Geometric Coefficient of Variation 23.4595
Part 1: GSK3745417 25 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 57.6835 Hour (h)Geometric Coefficient of Variation 41.2921
Part 1: GSK3745417 25 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 13.6895 Hour (h)Geometric Coefficient of Variation 122.94
Part 1: GSK3745417 50 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 14.2938 Hour (h)Geometric Coefficient of Variation 100.3767
Part 1: GSK3745417 50 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 55.6202 Hour (h)Geometric Coefficient of Variation 7.5634
Part 1: GSK3745417 100 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 16.2658 Hour (h)Geometric Coefficient of Variation 98.3724
Part 1: GSK3745417 100 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 57.4977 Hour (h)Geometric Coefficient of Variation 36.4027
Secondary

Part 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 300 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 300 µgDAY 17.0877 Hour (h)Geometric Coefficient of Variation 39.1392
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 300 µgDAY 55.6013 Hour (h)Geometric Coefficient of Variation 39.151
Part 1: GSK3745417 12.5 ugPart 1: Terminal Phase Half-life (t1/2) Following Administration of GSK3745417 300 µgDAY 84.5845 Hour (h)
Secondary

Part 1: Volume of Distribution (V) Following Administration of GSK3745417 100 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 12 and 24 hours on Day 8; Pre-dose, 5 minutes, 4, 8 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 100 µgDAY 16.8614 Liter (L)Geometric Coefficient of Variation 41.4133
Part 1: GSK3745417 12.5 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 100 µgDAY 56.2891 Liter (L)Geometric Coefficient of Variation 42.2982
Part 1: GSK3745417 12.5 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 100 µgDAY 87.0024 Liter (L)
Part 1: GSK3745417 12.5 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 100 µgDAY 125.4797 Liter (L)Geometric Coefficient of Variation 38.0866
Secondary

Part 1: Volume of Distribution (V) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30 and 45 minutes, 1, 2, 4, 6, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 5

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 15.1242 Liter (L)Geometric Coefficient of Variation 62.5343
Part 1: GSK3745417 12.5 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 57.9543 Liter (L)Geometric Coefficient of Variation 44.7917
Part 1: GSK3745417 25 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 54.0818 Liter (L)Geometric Coefficient of Variation 48.7367
Part 1: GSK3745417 25 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 16.1162 Liter (L)Geometric Coefficient of Variation 15.1427
Part 1: GSK3745417 50 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 16.2318 Liter (L)Geometric Coefficient of Variation 23.2325
Part 1: GSK3745417 50 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 56.7901 Liter (L)Geometric Coefficient of Variation 18.9568
Part 1: GSK3745417 100 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 17.2915 Liter (L)Geometric Coefficient of Variation 35.8656
Part 1: GSK3745417 100 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 12.5 µg, 25 µg, 50 µg and 200 µgDAY 56.0176 Liter (L)Geometric Coefficient of Variation 30.5236
Secondary

Part 1: Volume of Distribution (V) Following Administration of GSK3745417 300 µg

Blood samples were collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 1; Pre-dose, 5 minutes, 1, 4, 8, 12, 24 hours on Day 5; Pre-dose, 5 minutes, 4, 8, 24 hours on Day 8

Population: Pharmacokinetic (PK) Population. Only those participants who were measured and analyzed (i.e., contributed data reported in the table) were included in the 'Overall Number of Participants Analyzed' field. 'Number Analyzed' signifies participants evaluable for the specified time points.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part 1: GSK3745417 12.5 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 300 µgDAY 17.9354 Liter (L)Geometric Coefficient of Variation 16.5438
Part 1: GSK3745417 12.5 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 300 µgDAY 56.6325 Liter (L)Geometric Coefficient of Variation 29.824
Part 1: GSK3745417 12.5 ugPart 1: Volume of Distribution (V) Following Administration of GSK3745417 300 µgDAY 84.5465 Liter (L)
Secondary

Part 2: AUC(0-infinity) Following Administration of GSK3745417

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Secondary

Part 2: AUC(0-tau) Following Administration of GSK3745417

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Secondary

Part 2: AUC(0-t) Following Administration of GSK3745417

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Secondary

Part 2: Cmax Following Administration of GSK3745417

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Secondary

Part 2: Number of Participants With AEs, SAEs and Adverse Events of Special Interest (AESIs) Leading to Dose Modification and Dose Delays

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. SAE is defined as any untoward medical occurrence that, at any dose resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, or is a congenital anomaly/birth defect, other situations which involved medical or scientific judgment. AESI includes events that were immune-related or related to Cytokine Release Syndrome or tumor lysis syndrome.

Time frame: Up to 49 weeks

Population: Safety Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Secondary

Part 2: Systemic Clearance of Parent Drug (CL) Following Administration of GSK3745417

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Secondary

Part 2: Terminal Phase Elimination Rate Constant (Lambda Z) Following Administration of GSK3745417

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Secondary

Part 2: Terminal Phase Half-life (t1/2) Following Administration of Single Dose GSK3745417

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Secondary

Part 2: Volume of Distribution (V) Following Administration of GSK3745417

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of GSK3745417.

Time frame: Pre-dose, 5, 15, 30, 45 minutes, 1, 2, 4, 6, 8, 12 and 24 hours on Day 1; Predose on Day 4; Pre-dose and 5 minutes, 4, 8, 24 hours on Day 5; Predose and 4, 8, 12 and 24 hours on Day 8; Pre-dose, 1, 4, 8, 12 and 24 hours on Day 12

Population: Pharmacokinetic (PK) Population. No participants were enrolled in Part 2 of the study. Hence, data was not collected for Part 2 of the study.

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026