Recent Updates
Recently added Catalysts

SKI-606

Phase 2

Breast Neoplasms | Small molecule | Oncology |Pfizer, Inc.|Last Updated: Jun 28, 2016

Target and mechanism

Molecular targetABL1, BCR, HCK, LYN, SRC
Target classInhibitor
ModalitySmall molecule

Also known as Bosutinib

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

UNCONTROLLED
Total Trials1
Total Enrollment75

FDA Designations

No designations recorded

Clinical trial landscape

SKI-606 · 10 trials · 6 indications

Phase 2 2Phase 1 8
NCT00811070Study Evaluating SKI-606 (Bosutinib) In Japanese Subjects With Philadelphia Chromosome Positive LeukemiasChronic Myelogenous Leukemia
COMPLETED63 Analytics
NCT00319254Study Evaluating SKI-606 (Bosutinib) In Subjects With Breast CancerBreast Neoplasms
COMPLETED75 Analytics
PHASE2COMPLETED
Study Evaluating SKI-606 (Bosutinib) In Japanese Subjects With Philadelphia Chromosome Positive Leukemias
Chronic Myelogenous LeukemiaUnlock trial analytics
PHASE2COMPLETED
Study Evaluating SKI-606 (Bosutinib) In Subjects With Breast Cancer
Breast NeoplasmsUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Dose-Limiting Toxicity (DLT) - Part 1
Baseline up to Day 28 (Part 1 )

DLT was defined as any of the following events occurring during the first 28 days of study medication and considered at least possibly-related to study medication: any grade 3 or 4 clinically-relevant non-hematologic toxicity.

Maximum Tolerated Dose (MTD) - Part 1
Baseline up to Day 28 (Part 1 )

MTD was defined as highest dose level for which no more than 1 participant in a dose cohort experienced DLT.

Percentage of Participants With Major Cytogenetic Response (MCyR) at Week 24 in Chronic Phase Second-line Cohort - Part 2
Week 24

Cytogenetic response (CyR) is based on the prevalence of Philadelphia chromosome positive (Ph+) cells. Major cytogenetic response was categorized as either complete cytogenetic response (CCyR) or partial cytogenetic response (PCyR). CCyR was achieved when there was 0 percent (%) Ph+ cells and PCyR was achieved when 1 to 35% Ph+ cells.

Progression-Free Survival (PFS) Rate
Baseline up to Week 16

PFS was based on Kaplan-Meier estimates. PFS was defined as time in weeks from start of study treatment to first documentation of objective tumor progression or death due to any cause. PFS was calculated as (first event date minus the date of first dose of study medication plus 1) divided by 7. Tumor progression was determined from oncologic assessment data (where data meet the criteria for progressive disease \[PD\]), or from death case report forms (CRFs). Percentage of participants who had not experienced progression or death by Week 16 is reported.

Percentage of Participants With Treatment-Emergent Adverse Events (AEs) And Serious Adverse Events (SAEs)
Baseline up to 30 days after last dose of study treatment

An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to 30 days after last dose that were absent before treatment or that worsened relative to pre-treatment state.

Pharmacokinetics, as measured by Cmax, AUC, tmax, t1/2
2 weeks
Pharmacokinetics as measured by Cmax, AUC, tmax, and t1/2
2 weeks
Corrected QT interval, including QTcN, QTcB, and QTcF
6 weeks
Mass Balance and Metabolic Disposition
10 days
The data from this study along with in vitro data will be used to explore in vitro/in vivo correlation for SKI-606 to support formulation development.
Pharmacokinetics; safety and tolerability
Pharmacokinetics; safety and tolerability; influence of food.
Safety as measured by AE information. Tolerability as measured by DLT observation.
2 years

Secondary Endpoints

Maximum Observed Plasma Concentration (Cmax) - Part 1
Before and 1, 2, 3, 4, 6, 8, 24 and 48 hours after administration on Day 1, and before and 1, 2, 3, 4, 6, 8, and 24 hours after administration on Day 15
Time to Reach Maximum Observed Plasma Concentration (Tmax) - Part 1
Before and 1, 2, 3, 4, 6, 8, 24 and 48 hours after administration on Day 1, and before and 1, 2, 3, 4, 6, 8, and 24 hours after administration on Day 15
Plasma Decay Half-Life (t1/2) - Part 1
Before and 1, 2, 3, 4, 6, 8, 24 and 48 hours after administration on Day 1
Unlock Study Endpoints

Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
1EXPERIMENTAL -
Advanced breast cancerEXPERIMENTAL -
2EXPERIMENTALClinical Tablet
3ACTIVE_COMPARATORMoxifloxacin
4EXPERIMENTALSKI-606 plus ketoconazole
5PLACEBO_COMPARATORPlacebo plus ketoconazole
SKI-606EXPERIMENTAL -

Interventions

NameTypeDescription
SKI-606 (Bosutinib)DRUGFormulation: 100 mg Capsule for Part 1, 100 mg tablet for Part1 and Part 2. SKI-606 (Bosutinib) will be taken by mouth with water and food as continuous once-daily dosing.
SKI-606DRUG -
PlaceboDRUG -
MoxifloxacinDRUG -
Unlock Study Design Details

Eligibility Criteria

Age Range20 Years to 74 Years
SexALL
Healthy VolunteersNo
Study Sites23

Inclusion Criteria: * Cytogenetic or Polymerase Chain Reaction based diagnosis of Chronic phase of Philadelphia Chromosome Positive Chronic Myelogenous Leukemia: (Part 1), any phase of Philadelphia Chromosome Positive Chronic Myelogenous Leukemia (Part 2), whose disease is resistant/refractory to ...

Countries:JapanUnited StatesAustraliaFranceHong KongMaltaPolandRussiaUkraineNetherlands
Unlock Eligibility Criteria

Frequently asked questions about SKI-606

What is SKI-606 used for?

SKI-606, also known as bosutinib, is an investigational small molecule being studied for use in breast neoplasms, chronic myelogenous leukemia, solid tumors, and in healthy subjects. It is in clinical development for these oncology indications, though it is not approved for any of them.

What does SKI-606 target?

SKI-606 is a kinase inhibitor, belonging to the -tinib class of drugs. It is designed to inhibit kinase activity, which plays a role in cancer cell growth and survival. Its development focuses on treating cancers such as breast cancer and chronic myelogenous leukemia.

Who makes SKI-606?

SKI-606 is being developed by Pfizer, Inc., a biopharmaceutical company. Pfizer is conducting clinical trials to evaluate the drug's safety and efficacy in various oncology indications, including breast cancer and chronic myelogenous leukemia.

What phase is SKI-606 in?

SKI-606 has been studied in Phase 1 and Phase 2 clinical trials. These trials have been completed, and the drug remains investigational. It has not received FDA approval, and its development status is not currently reported as active in ongoing trials.

What clinical trials has SKI-606 been in?

SKI-606 has been evaluated in several completed clinical trials. These include NCT00319254, a Phase 2 study in subjects with breast cancer; NCT00811070, a Phase 2 study in Japanese subjects with Philadelphia chromosome positive leukemias; NCT01001936, a Phase 1 study in subjects with solid tumors; and NCT01080365, a Phase 1 study comparing tablet formulations in healthy subjects.

Is SKI-606 the same as bosutinib?

Yes, SKI-606 is also known as bosutinib. Both names refer to the same investigational drug being developed by Pfizer. Clinical trials and literature may use either name to describe the compound.