Approval Probability
TA Base Rate
Adjusted LOA
ML Risk
GSK2636771 · 2 trials · 2 indications
An adverse event (AE) is any untoward medical occurrence in a participant or clinical investigation participants, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An SAE is any untoward medical occurrence that, at any dose: results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect, protocol-specific SAEs: All events of possible study treatment-induced liver injury with hyperbilirubinemia defined as alanine aminotransferase (ALT) \>=3 times upper limit of normal (ULN), and bilirubin \>=2 times ULN (\>35 percent \[%\] direct) (or ALT \>=3 times ULN and international normalized ratio (INR) \>1.5 if INR is measured) or termed 'Hy's Law' events (INR measurement is not required and the threshold value stated did not apply to participants receiving anticoagulants) or any new primary cancer.
An AE is any untoward medical occurrence in a participant or clinical investigation participants, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An SAE is any untoward medical occurrence that, at any dose: results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect, protocol-specific SAEs: All events of possible study treatment-induced liver injury with hyperbilirubinemia defined as ALT \>=3 times ULN, and bilirubin \>=2 times ULN (\>35% direct) (or ALT \>=3 times ULN and INR \>1.5 if INR is measured) or termed 'Hy's Law' events (INR measurement is not required and the threshold value stated did not apply to participants receiving anticoagulants) or any new primary cancer.
An event was considered as DLT if the event was attributed (definitely, probably or possibly) to study treatment, occured within the first 28 days of combination treatment (DLT reporting period), and met one of the following criteria: Febrile neutropenia of any grade or duration as per Common Terminology Criteria for Adverse Events (CTCAE) version 4.0, Grade 4 neutropenia lasting \>5 days, Grade 3 or greater non-hematologic toxicity that cannot be controlled with routine supportive measures, Grade 4 thrombocytopenia, ALT \>3 times ULN with bilirubin \>2 times ULN or ALT \>=3 times ULN and \>=1.5 times Baseline ALT value, if enrolled with liver metastases/tumor infiltration at Baseline), together with bilirubin \>=2 times ULN.
Blood samples were collected to analyze the hematology parameters: basophils, eosinophils, hematocrit, hemoglobin, lymphocytes, mean corpuscular hemoglobin (MCH), mean corpuscular volume (MCV), monocytes, total neutrophils, platelet count and white blood cells (WBCs) count. Baseline value is the latest GSK2636771 pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value. Percent change from Baseline was calculated as 100 multiplied by (post-Baseline visit value minus Baseline divided by Baseline).
Blood samples were collected to analyze the hematology parameters: INR, PT and PTT. Baseline value is the latest GSK2636771 pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value. Percent change from Baseline was calculated as 100 multiplied by (post-Baseline visit value minus Baseline divided by Baseline).
Blood samples were collected to analyze the chemistry parameters: ALT, Albumin, Alkaline phosphatase (ALP), Aspartate amino transferase (AST), Calcium, Carbon dioxide (CO2), Chloride, Creatinine, Direct bilirubin, Glucose, Lactate dehydrogenase, Magnesium, Potassium, Sodium, Total bilirubin and Total protein. Baseline value is the latest GSK2636771 pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value. Percent change from Baseline was calculated as 100 multiplied by (post-Baseline visit value minus Baseline divided by Baseline).
Blood samples were collected to analyze the chemistry parameters: BUN and uric acid. Baseline value is the latest GSK2636771 pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value. Percent change from Baseline was calculated as 100 multiplied by (post-Baseline visit value minus Baseline divided by Baseline).
Urine samples were collected to analyze the urinalysis parameters: Calcium, Creatinine concentration (conc), Magnesium, Phosphate and Protein. Baseline value is the latest GSK2636771 pre-dose assessment with a non-missing value, including those from unscheduled visits. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value. Percent change from Baseline was calculated as 100 multiplied by (post-Baseline visit value minus Baseline divided by Baseline).
A 12-lead ECG was obtained after the participant had rested at least 5 minutes in a semi-recumbent or supine position at each time point during the study using ECG machine that automatically measured PR, QRS, QT and Corrected QT interval (QT duration corrected for heart rate by Bazett's formula \[QTcB\] and Fridericia's formula \[QTcF\]). Clinically significant abnormal findings are those which are not associated with the underlying disease, unless judged by the investigator to be more severe than expected for the participant's condition. Number of participants with abnormal clinical significant ECG findings are presented.
SBP and DBP were measured after resting for 5 minutes in semi-supine position. SBP and DBP were graded according to Common Toxicity Criteria for Adverse Events (CTCAE) version 4. 'Any grade increase' is defined as an increase in CTCAE grade relative to Baseline grade. For SBP, Grade 0: \<120 millimeters of mercury \[mmHg\]), Grade 1: 120-139 mmHg, Grade 2: 140-159 mmHg, Grade 3:\>=160 mmHg. For DBP, Grade 0: \<80 mmHg, Grade 1: 80-89 mmHg, Grade 2: 90-99 mmHg, Grade 3: \>=100 mmHg. Higher grade indicate worst outcome. Data for worst-case post-Baseline is reported.
Heart rate was measured after resting for 5 minutes in semi-supine position. The clinical concern range for heart rate was: low: decrease to \<60 beats per minute (bpm) and high: increase to \>100 bpm. Participants were counted in the worst case category that their value changed to (low, within range or no change, or high) unless there was no change in their category. Participants whose value category was unchanged (e.g., High to High), or whose value became within range, were recorded in the 'Change to normal or No Change' category. Participants were counted twice if the participant had both values 'decrease to \<60 bpm' and 'increase to \>100 bpm' during post-Baseline visits. Data for worst case post-Baseline is reported.
Temperature was measured after resting for 5 minutes in semi-supine position. The clinical concern range for body temperature was: low: decrease to \<=35 degrees celsius, high: increase to \>=38 degrees celsius. Participants were counted in the worst case category that their value changed to (low, within range or no change, or high) unless there was no change in their category. Participants whose value category was unchanged (e.g., High to High), or whose value became within range, were recorded in the 'Change to normal or No Change' category. Participants were counted twice if the participant had both values 'decreased to \<=35 degree celsius' and 'increased to \>=38 degrees celsius' during post-Baseline visits. Data for worst-case post-Baseline is presented.
The 12-week non-PD rate was defined as percentage of participants without progression(non-PD) at Week12 as determined from Prostate-specific antigen(PSA) results, radiographic assessment per Response Evaluation Criteria In Solid Tumors(RECIST)1.1 and bone scan.Disease progression was defined by 1 or more of the following:PSA progression alone; PSA progression according to the PCWG2 criteria with accompanying progression by RECIST1.1 or bone scan for participants with soft tissue Baseline disease; Bone progression on bone scan according to PCWG2 criteria; or Radiographic progression in soft tissue or bone by RECIST1.1 for participants with Baseline disease.Modified All Treated Clinical Activity Population consisted of all participants who received at least 1 dose of GSK2636771 and who were treated at the same dose as dose expansion cohort and have been on study drug for at least 12weeks or have discontinued study treatment due to disease progression, died or withdrawn for any reason.
Pharmacokinetic parameters including AUC, Cmax, tmax, and t1/2; adverse events, serious adverse events, changes in laboratory values, ECG parameters, and vital signs; median and maximum AUC(0-24)
Pharmacokinetic parameters including AUC, Cmax, tmax, and t1/2; adverse events, serious adverse events, changes in laboratory values, ECG parameters, and vital signs; dose-limiting toxicities and/or biological activity in tumor or anti-tumor efficacy
Overall Response Rate (ORR): defined as the percentage of subjects with a confirmed complete response (CR) or partial response (PR) as per RECIST 1.1 criteria
| Arm | Type | Description |
|---|---|---|
| Phase 1-Dose Escalation | EXPERIMENTAL | Subject receiving a stable dose of enzalutamide 160 mg once daily will receive GSK2636771 following a modified 3+3 dose escalation procedure (Cohort -1: 200 mg, Cohort 1: 300 mg and Cohort 2: 400 mg) to evaluate the safety and PK for each combination dose level and to guide selection of the RP2D of the combination. If the combination doses in Cohort 1 are not tolerable, lower doses as defined in the de-escalation cohort (Cohort -1) will be evaluated. If the de-escalation cohort (Cohort -1) is not tolerable, further dose-escalation using a continuous daily dosing schedule for both compounds simultaneously will be terminated. Additional dose levels of GSK2636771 or alternative dosing schedules may be explored based upon ongoing assessment of safety and PK. Dose modification decisions will be made utilizing all available data at the end of each DLT determination period (28 days). |
| Phase 2- Dose Expansion | EXPERIMENTAL | Additional 20 subjects will be assigned to receive GSK2636771 at the MTD or RP2D determined in the Dose-Escalation Phase while continuing treatment with enzalutamide to evaluate the long-term safety of the combination as well as the 12-week non-PD rate |
| Part 1 | EXPERIMENTAL | GSK2636771 single dose and then daily dosing after approximately 1 week |
| Part 2 | EXPERIMENTAL | GSK2636771 single dose and then daily dosing starting on Day 4 |
| Part 3 | EXPERIMENTAL | GSK2636771 daily dosing |
| Name | Type | Description |
|---|---|---|
| GSK2636771 | DRUG | GSK is available as 100 mg hard gelatin oral capsule to be taken once daily/continuous until treatment withdrawal under fasting conditions for at least 1hour (h) before and 2h after dosing with approximately 200 mL of water |
| Enzalutamide | DRUG | Enzalutamide will be sourced locally from commercial stock for sites in countries where it is approved |
Inclusion Criteria: * Signed written informed consent provided * Males \>=18 years of age (at the time consent is obtained) * Histologically or cytologically confirmed diagnosis of prostate adenocarcinoma, surgically castrated or continuous medical castration (for \>=8 weeks prior to Screening) * S...
| Company | Ticker | Trials | Lead Phase | Drugs |
|---|---|---|---|---|
| GE Healthcare Technologies Inc. | GEHC | 1 | PHASE1 | GEH200520/ GEH200521- Part A |
| Zimmer Biomet Holdings, Inc. | ZBH | 1 | - | Undisclosed |
| Ascentage Pharma Group International Unsponsored ADR | AAPG | 1 | PHASE1 | Olverembatinib |
GSK2636771 is an investigational small molecule being studied for the treatment of cancer and neoplasms. It has been evaluated in clinical trials for advanced solid tumors and metastatic castration-resistant prostate cancer. The drug is currently in Phase 1 clinical development.
GSK2636771 targets the PI3K pathway, specifically the beta isoform of phosphatidylinositol 3-kinase (PI3K-beta). This pathway is involved in tumor growth and survival, particularly in cancers with PTEN deficiency. The drug is designed to inhibit this target to potentially slow cancer progression.
GSK2636771 is being developed by GSK plc, a global pharmaceutical company traded on the London Stock Exchange under the ticker GSK. The drug is an investigational oncology therapy currently in Phase 1 clinical trials.
GSK2636771 is in Phase 1 clinical development. It has completed two Phase 1 trials, one as a single agent and one in combination with enzalutamide. The drug is not approved and remains investigational.
GSK2636771 has been studied in two completed Phase 1 trials. NCT01458067 evaluated the drug in patients with advanced solid tumors and PTEN deficiency. NCT02215096 studied GSK2636771 in combination with enzalutamide in men with metastatic castration-resistant prostate cancer.
GSK2636771 is also known by its code name GSK2636771. It is a distinct investigational compound and is not the same as other marketed drugs. It is being studied under its own clinical trial protocols.