Skip to content

A Study of SB-743921 in Non-Hodgkin Lymphoma and Hodgkin Lymphoma

A Phase I-II Study to Determine the Safety, Pharmacokinetics and Potential Efficacy of Intravenous Administration of SB-743921 on Days 1 and 15 of a 28-Day Dosing Schedule in Patients With Non-Hodgkin Lymphoma and Hodgkin Lymphoma

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00343564
Enrollment
68
Registered
2006-06-23
Start date
2006-04-30
Completion date
2010-07-31
Last updated
2020-01-13

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

Conditions

Hodgkin's Disease, Non-Hodgkin's Lymphoma

Brief summary

This study was an early-phase trial arranged into two phases. The Phase I portion was a dose-escalation study designed to assess the safety, tolerability and to identify the maximum tolerated dose of SB-743921 in patients with Non-Hodgkin Lymphoma and Hodgkin Lymphoma. Phase II was intended to assess the activity, safety and tolerability of SB-743921 in patients with Indolent and Aggressive Non-Hodgkin's Lymphomas exclusively. The Phase II portion of the study was not initiated.

Interventions

Phase 1: I.V. dose on Days 1 and 15 of a 28 day cycle starting at 2mg/m2 and increasing by 1 mg/m2 with possible prophylactic granulopoietic support until unacceptable toxicity develops.

Sponsors

Cytokinetics
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

Phase 1: Patients with evaluable or measurable (by MRI or CT) Hodgkin's Disease or Non-Hodgkin's Lymphoma. Phase 2: Patients with Measurable Non-Hodgkin's Lymphomas (Indolent or Aggressive) only. - Patients with Indolent NHL must be relapsed or refractory to at least one prior line of therapy (CHOP, CVP, chlorambucil or fludaribine). Prior treatment with Rituximab is required. - Patients with Aggressive NHL refractory to (or relapsed from) at least one CHOP-based therapy who have had prior treatment with Rituximab and who are not candidates for high-dose chemotherapy or autologous stem cell transplantation. - ECOG performance status 0-2 - Autologous stem cell transplant recipients are eligible if 100 days have elapsed since procedure.

Exclusion criteria

Phase 1: History of prior radioimmunotherapy (Bexxar, Zevalin); These patients ARE permitted in the Phase 2 trial. - Current active malignancy besides NHL, except excised non-melanoma skin cancer, in-situ cervical or bladder cancer or early stage prostate cancer. - Patients with leptomeningeal of CNS lymphoma - Known allergy to and/or receipt of treatments contraindicated by administration of G-CSF - Patients with active Hepatitis B or C, or patients with HIV infection. - Pregnant or breast-feeding females. - Previous treatment with a KSP inhibitor

Design outcomes

Primary

MeasureTime frameDescription
Phase 1: Determination of Maximum Tolerated Dose (MTD) First Without and Then With Administration of Prophylactic G-CSF.28 daysMaximum Tolerated Dose (MTD) was determined by testing increasing doses in cohorts with at least 3 patients each. MTD reflects the highest dose of drug that did not cause dose limiting toxicity (DLT).

Secondary

MeasureTime frame
Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day1Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose
Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose
Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose
Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose
Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose
Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose
Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose
Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose

Countries

Russia, United States

Participant flow

Participants by arm

ArmCount
2 mg/m2 Without GCSF
Phase 1 dose escalation cohort 1 without GCSF support
6
3 mg/m2 Without GCSF
Phase 1 dose escalation cohort 2 without GCSF support
7
4 mg/m2 Without GCSF
Phase 1 dose escalation cohort 3 without GCSF support
3
5 mg/m2 Without GCSF
Phase 1 dose escalation cohort 4 without GCSF support
7
6 mg/m2 Without GCSF
Phase 1 dose escalation cohort 5 without GCSF support
10
7 mg/m2 Without GCSF
Phase 1 dose escalation cohort 6 without GCSF support
9
6 mg/m2 With GCSF
Phase 1 dose escalation cohort 1 with GCSF support
4
7 mg/m2 With GCSF
Phase 1 dose escalation cohort 2 with GCSF support
3
8 mg/m2 With GCSF
Phase 1 dose escalation cohort 3 with GCSF support
3
9 mg/m2 With GCSF
Phase 1 dose escalation cohort 4 with GCSF support
8
10 mg/m2 With GCSF
Phase 1 dose escalation cohort 5 with GCSF support
8
Total68

Baseline characteristics

Characteristic8 mg/m2 With GCSF9 mg/m2 With GCSF2 mg/m2 Without GCSF3 mg/m2 Without GCSF4 mg/m2 Without GCSF5 mg/m2 Without GCSF6 mg/m2 Without GCSF7 mg/m2 Without GCSF6 mg/m2 With GCSF7 mg/m2 With GCSF10 mg/m2 With GCSFTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants1 Participants
Age, Categorical
>=65 years
2 Participants4 Participants2 Participants0 Participants0 Participants4 Participants2 Participants2 Participants3 Participants1 Participants4 Participants24 Participants
Age, Categorical
Between 18 and 65 years
1 Participants4 Participants4 Participants7 Participants3 Participants3 Participants8 Participants6 Participants1 Participants2 Participants4 Participants43 Participants
Age, Continuous63 years
STANDARD_DEVIATION 17
48 years
STANDARD_DEVIATION 22
62 years
STANDARD_DEVIATION 9
43 years
STANDARD_DEVIATION 13
33 years
STANDARD_DEVIATION 9
57 years
STANDARD_DEVIATION 22
48 years
STANDARD_DEVIATION 16
42 years
STANDARD_DEVIATION 24
69 years
STANDARD_DEVIATION 12
63 years
STANDARD_DEVIATION 11
56 years
STANDARD_DEVIATION 20
52 years
STANDARD_DEVIATION 19
Region of Enrollment
Russian Federation
1 participants0 participants0 participants3 participants2 participants2 participants3 participants3 participants0 participants0 participants1 participants15 participants
Region of Enrollment
United States
2 participants8 participants6 participants4 participants1 participants5 participants7 participants6 participants4 participants3 participants7 participants53 participants
Sex: Female, Male
Female
1 Participants3 Participants4 Participants6 Participants1 Participants2 Participants4 Participants4 Participants2 Participants1 Participants1 Participants29 Participants
Sex: Female, Male
Male
2 Participants5 Participants2 Participants1 Participants2 Participants5 Participants6 Participants5 Participants2 Participants2 Participants7 Participants39 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
EG010
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
5 / 56 / 63 / 36 / 610 / 108 / 94 / 43 / 33 / 37 / 77 / 7
serious
Total, serious adverse events
2 / 50 / 60 / 30 / 63 / 101 / 91 / 41 / 30 / 31 / 73 / 7

Outcome results

Primary

Phase 1: Determination of Maximum Tolerated Dose (MTD) First Without and Then With Administration of Prophylactic G-CSF.

Maximum Tolerated Dose (MTD) was determined by testing increasing doses in cohorts with at least 3 patients each. MTD reflects the highest dose of drug that did not cause dose limiting toxicity (DLT).

Time frame: 28 days

Population: Safety population; all patients who received at least 1 dose of study drug were included in the intent-to-treat/safety populations. Efficacy evaluable; any patient who received both cycles of treatment.

ArmMeasureValue (NUMBER)
Dose Escalation Cohort 1 2 mg/m2 (w/o GCSF)Phase 1: Determination of Maximum Tolerated Dose (MTD) First Without and Then With Administration of Prophylactic G-CSF.2 mg/m2
Dose Escalation Cohort 2 3 mg/m2 (w/o GCSF)Phase 1: Determination of Maximum Tolerated Dose (MTD) First Without and Then With Administration of Prophylactic G-CSF.3 mg/m2
Dose Escalation Cohort 3 4 mg/m2 (w/o GCSF)Phase 1: Determination of Maximum Tolerated Dose (MTD) First Without and Then With Administration of Prophylactic G-CSF.4 mg/m2
Dose Escalation Cohort 4 5 mg/m2 (w/o GCSF)Phase 1: Determination of Maximum Tolerated Dose (MTD) First Without and Then With Administration of Prophylactic G-CSF.5 mg/m2
Dose Escalation Cohort 5 6 mg/m2 (w/o GCSF)Phase 1: Determination of Maximum Tolerated Dose (MTD) First Without and Then With Administration of Prophylactic G-CSF.6 mg/m2
Dose Escalation Cohort 6 7 mg/m2 (w/o GCSF)Phase 1: Determination of Maximum Tolerated Dose (MTD) First Without and Then With Administration of Prophylactic G-CSF.6 mg/m2
Dose Escalation Cohort 1 6 mg/m2 (w/ GCSF)Phase 1: Determination of Maximum Tolerated Dose (MTD) First Without and Then With Administration of Prophylactic G-CSF.6 mg/m2
Dose Escalation Cohort 2 7mg/m2 (w/GCSF)Phase 1: Determination of Maximum Tolerated Dose (MTD) First Without and Then With Administration of Prophylactic G-CSF.7 mg/m2
Dose Escalation Cohort 3 8 mg/m2 (w/GCSF)Phase 1: Determination of Maximum Tolerated Dose (MTD) First Without and Then With Administration of Prophylactic G-CSF.8 mg/m2
Dose Escalation Cohort 4 9 mg/m2 (w/GCSF)Phase 1: Determination of Maximum Tolerated Dose (MTD) First Without and Then With Administration of Prophylactic G-CSF.9 mg/m2
Dose Escalation Cohort 5 10 mg/m2 (w/GCSF)Phase 1: Determination of Maximum Tolerated Dose (MTD) First Without and Then With Administration of Prophylactic G-CSF.9 mg/m2
Secondary

Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1

Time frame: Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose

ArmMeasureValue (MEAN)Dispersion
Dose Escalation Cohort 1 2 mg/m2 (w/o GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 11807 hr*ng/mLStandard Deviation 1104
Dose Escalation Cohort 2 3 mg/m2 (w/o GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 12800 hr*ng/mLStandard Deviation 988.6
Dose Escalation Cohort 3 4 mg/m2 (w/o GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 13269 hr*ng/mLStandard Deviation 950.2
Dose Escalation Cohort 4 5 mg/m2 (w/o GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 13707 hr*ng/mLStandard Deviation 1750
Dose Escalation Cohort 5 6 mg/m2 (w/o GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15838 hr*ng/mLStandard Deviation 2588
Dose Escalation Cohort 6 7 mg/m2 (w/o GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15359 hr*ng/mLStandard Deviation 3028
Dose Escalation Cohort 1 6 mg/m2 (w/ GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 16270 hr*ng/mLStandard Deviation 2751
Dose Escalation Cohort 2 7mg/m2 (w/GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15875 hr*ng/mLStandard Deviation 3483
Dose Escalation Cohort 3 8 mg/m2 (w/GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 111570 hr*ng/mLStandard Deviation 6318
Secondary

Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15

Time frame: Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose

ArmMeasureValue (MEAN)Dispersion
Dose Escalation Cohort 1 2 mg/m2 (w/o GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 151809 hr*ng/mLStandard Deviation 464.1
Dose Escalation Cohort 2 3 mg/m2 (w/o GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 152363 hr*ng/mLStandard Deviation 1187
Dose Escalation Cohort 3 4 mg/m2 (w/o GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 153380 hr*ng/mLStandard Deviation 1456
Dose Escalation Cohort 4 5 mg/m2 (w/o GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 154105 hr*ng/mLStandard Deviation 2190
Dose Escalation Cohort 5 6 mg/m2 (w/o GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 155869 hr*ng/mLStandard Deviation 3417
Dose Escalation Cohort 6 7 mg/m2 (w/o GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 155116 hr*ng/mLStandard Deviation 1728
Dose Escalation Cohort 1 6 mg/m2 (w/ GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 156041 hr*ng/mLStandard Deviation 3010
Dose Escalation Cohort 2 7mg/m2 (w/GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 156178 hr*ng/mLStandard Deviation 3630
Dose Escalation Cohort 3 8 mg/m2 (w/GCSF)Characterization of PK (AUClast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1512590 hr*ng/mLStandard Deviation 17850
Secondary

Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1

Time frame: Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose

ArmMeasureValue (MEAN)Dispersion
Dose Escalation Cohort 1 2 mg/m2 (w/o GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 136.9 ng/mLStandard Deviation 23.6
Dose Escalation Cohort 2 3 mg/m2 (w/o GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 161.6 ng/mLStandard Deviation 29.4
Dose Escalation Cohort 3 4 mg/m2 (w/o GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 159.5 ng/mLStandard Deviation 39.9
Dose Escalation Cohort 4 5 mg/m2 (w/o GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 179.1 ng/mLStandard Deviation 51.9
Dose Escalation Cohort 5 6 mg/m2 (w/o GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1133 ng/mLStandard Deviation 64.7
Dose Escalation Cohort 6 7 mg/m2 (w/o GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1103 ng/mLStandard Deviation 48.3
Dose Escalation Cohort 1 6 mg/m2 (w/ GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1144 ng/mLStandard Deviation 97.6
Dose Escalation Cohort 2 7mg/m2 (w/GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1122 ng/mLStandard Deviation 69.6
Dose Escalation Cohort 3 8 mg/m2 (w/GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1245 ng/mLStandard Deviation 134
Secondary

Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15

Time frame: Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose

ArmMeasureValue (MEAN)Dispersion
Dose Escalation Cohort 1 2 mg/m2 (w/o GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1529.2 ng/mLStandard Deviation 11.8
Dose Escalation Cohort 2 3 mg/m2 (w/o GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1584.2 ng/mLStandard Deviation 60.8
Dose Escalation Cohort 3 4 mg/m2 (w/o GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1558.5 ng/mLStandard Deviation 29.8
Dose Escalation Cohort 4 5 mg/m2 (w/o GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1584.6 ng/mLStandard Deviation 47.9
Dose Escalation Cohort 5 6 mg/m2 (w/o GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15138 ng/mLStandard Deviation 103
Dose Escalation Cohort 6 7 mg/m2 (w/o GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1592.4 ng/mLStandard Deviation 50.5
Dose Escalation Cohort 1 6 mg/m2 (w/ GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15138 ng/mLStandard Deviation 94.9
Dose Escalation Cohort 2 7mg/m2 (w/GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15150 ng/mLStandard Deviation 105
Dose Escalation Cohort 3 8 mg/m2 (w/GCSF)Characterization of PK (Clast) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15285 ng/mLStandard Deviation 290
Secondary

Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1

Time frame: Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose

ArmMeasureValue (MEAN)Dispersion
Dose Escalation Cohort 1 2 mg/m2 (w/o GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1172 ng/mLStandard Deviation 40.7
Dose Escalation Cohort 2 3 mg/m2 (w/o GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1348 ng/mLStandard Deviation 86.6
Dose Escalation Cohort 3 4 mg/m2 (w/o GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1357 ng/mLStandard Deviation 50.4
Dose Escalation Cohort 4 5 mg/m2 (w/o GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1514 ng/mLStandard Deviation 177
Dose Escalation Cohort 5 6 mg/m2 (w/o GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1600 ng/mLStandard Deviation 175
Dose Escalation Cohort 6 7 mg/m2 (w/o GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1689 ng/mLStandard Deviation 401
Dose Escalation Cohort 1 6 mg/m2 (w/ GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 11130 ng/mLStandard Deviation 189
Dose Escalation Cohort 2 7mg/m2 (w/GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 1805 ng/mLStandard Deviation 501
Dose Escalation Cohort 3 8 mg/m2 (w/GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 11180 ng/mLStandard Deviation 682
Secondary

Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15

Time frame: Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose

ArmMeasureValue (MEAN)Dispersion
Dose Escalation Cohort 1 2 mg/m2 (w/o GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15220 ng/mLStandard Deviation 51.2
Dose Escalation Cohort 2 3 mg/m2 (w/o GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15323 ng/mLStandard Deviation 120
Dose Escalation Cohort 3 4 mg/m2 (w/o GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15365 ng/mLStandard Deviation 45.2
Dose Escalation Cohort 4 5 mg/m2 (w/o GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15599 ng/mLStandard Deviation 383
Dose Escalation Cohort 5 6 mg/m2 (w/o GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15717 ng/mLStandard Deviation 278
Dose Escalation Cohort 6 7 mg/m2 (w/o GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15835 ng/mLStandard Deviation 442
Dose Escalation Cohort 1 6 mg/m2 (w/ GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15685 ng/mLStandard Deviation 163
Dose Escalation Cohort 2 7mg/m2 (w/GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15706 ng/mLStandard Deviation 344
Dose Escalation Cohort 3 8 mg/m2 (w/GCSF)Characterization of PK (Cmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 151430 ng/mLStandard Deviation 1620
Secondary

Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day1

Time frame: Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose

ArmMeasureValue (MEAN)Dispersion
Dose Escalation Cohort 1 2 mg/m2 (w/o GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day11.20 hrStandard Deviation 0.45
Dose Escalation Cohort 2 3 mg/m2 (w/o GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day11.00 hrStandard Deviation 0
Dose Escalation Cohort 3 4 mg/m2 (w/o GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day11.00 hrStandard Deviation 0
Dose Escalation Cohort 4 5 mg/m2 (w/o GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day11.00 hrStandard Deviation 0
Dose Escalation Cohort 5 6 mg/m2 (w/o GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day11.08 hrStandard Deviation 0.28
Dose Escalation Cohort 6 7 mg/m2 (w/o GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day11.00 hrStandard Deviation 0.43
Dose Escalation Cohort 1 6 mg/m2 (w/ GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day11.00 hrStandard Deviation 0
Dose Escalation Cohort 2 7mg/m2 (w/GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day11.00 hrStandard Deviation 0
Dose Escalation Cohort 3 8 mg/m2 (w/GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day11.17 hrStandard Deviation 0.41
Secondary

Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 15

Time frame: Pre-dose, immediately post-dose, between 2 and 4 hours post-dose and between 24 and 36 hours post-dose

ArmMeasureValue (MEAN)Dispersion
Dose Escalation Cohort 1 2 mg/m2 (w/o GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 151.00 hrStandard Deviation 0
Dose Escalation Cohort 2 3 mg/m2 (w/o GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 151.00 hrStandard Deviation 0
Dose Escalation Cohort 3 4 mg/m2 (w/o GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 151.00 hrStandard Deviation 0
Dose Escalation Cohort 4 5 mg/m2 (w/o GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 151.00 hrStandard Deviation 0
Dose Escalation Cohort 5 6 mg/m2 (w/o GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 151.00 hrStandard Deviation 0
Dose Escalation Cohort 6 7 mg/m2 (w/o GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 151.00 hrStandard Deviation 0
Dose Escalation Cohort 1 6 mg/m2 (w/ GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 151.00 hrStandard Deviation 0
Dose Escalation Cohort 2 7mg/m2 (w/GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 151.00 hrStandard Deviation 0
Dose Escalation Cohort 3 8 mg/m2 (w/GCSF)Characterization of PK (Tmax) of SB-743921 Administered as a 1-hour Intravenous Infusion on Day 151.00 hrStandard Deviation 0

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