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PF-04950615

Phase 2

Hypercholesterolemia | Monoclonal antibody | Cardiovascular |Pfizer, Inc.|Trials Updated: Jan 22, 2019

PF-04950615 development status

Highest phase Phase 2
Registered trials 2 across 1 sponsor since May 2012

PF-04950615 target and mechanism

Molecular targetPCSK9
Target classProtein
ModalityMonoclonal antibody

Also known as PF-04950615 (RN316)

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials4
Total Enrollment256

FDA Designations

No designations recorded

PF-04950615 clinical trials

PF-04950615 · 4 trials · 6 indications

Phase 2 2Phase 1 2
NCT01342211A Multiple Dose Study of PF-04950615 (RN316) in Subjects on High Doses of StatinsHypercholesterolemia
COMPLETED93 Analytics
NCT01350141A Multiple Dose Study Of PF-04950615 (RN316) In Subjects On Maximum Doses Of StatinsHypercholesterolemia
COMPLETED46 Analytics
PHASE2COMPLETED
A Multiple Dose Study of PF-04950615 (RN316) in Subjects on High Doses of Statins
HypercholesterolemiaUnlock trial analytics
PHASE2COMPLETED
A Multiple Dose Study Of PF-04950615 (RN316) In Subjects On Maximum Doses Of Statins
HypercholesterolemiaUnlock trial analytics

Study Endpoints

Primary Endpoints

Percent Change From Baseline in Low-density Lipoprotein Cholesterol (LDL-C) at Day 85
Baseline, Day 85

Baseline value was calculated as the average of Day 7 and Day 1 measurements collected prior to study drug administration.

Maximum Observed Plasma Concentration (Cmax) of PF-04950615
Pre-dose, 30 minutes, 1, 8, 24, 48, 72, 96, 120, 168, 336, 504, 672, 840, 1008, 1176, 1344, 1512, 1680, 2016 hours post-dose
Time to Reach Maximum Observed Plasma Concentration (Tmax) of PF-04950615
Pre-dose, 30 minutes, 1, 8, 24, 48, 72, 96, 120, 168, 336, 504, 672, 840, 1008, 1176, 1344, 1512, 1680, 2016 hours post-dose
Area Under the Plasma Concentration-Time Curve From Time Zero to Time of Last Quantifiable Concentration (AUClast) of PF-04950615
Pre-dose, 30 minutes, 1, 8, 24, 48, 72, 96, 120, 168, 336, 504, 672, 840, 1008, 1176, 1344, 1512, 1680, 2016 hours post-dose
Area Under the Plasma Concentration-Time Curve From Time Zero To Infinity (AUCinf) of PF-04950615
Pre-dose, 30 minutes, 1, 8, 24, 48, 72, 96, 120, 168, 336, 504, 672, 840, 1008, 1176, 1344, 1512, 1680, 2016 hours post-dose
Apparent Clearance (CL/F) of PF-04950615 Subcutaneous Groups
Pre-dose, 30 minutes, 1, 8, 24, 48, 72, 96, 120, 168, 336, 504, 672, 840, 1008, 1176, 1344, 1512, 1680, 2016 hours post-dose

Clearance (CL) of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Apparent clearance (CL/F) is influenced by the fraction of the dose absorbed from plasma after SC administration of drug.

Clearance (CL) of PF-04950615 Intravenous Group
Pre-dose, 30 minutes, 1, 8, 24, 48, 72, 96, 120, 168, 336, 504, 672, 840, 1008, 1176, 1344, 1512, 1680, 2016 hours post-dose

Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes.

Apparent Volume of Distribution (Vz/F) of PF-04950615 Subcutaneous Groups
Pre-dose, 30 minutes, 1, 8, 24, 48, 72, 96, 120, 168, 336, 504, 672, 840, 1008, 1176, 1344, 1512, 1680, 2016 hours post-dose

Volume of distribution (Vz) is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Vz/F is influenced by the fraction of the dose absorbed from plasma after SC administration of drug.

Volume of Distribution at Steady State (Vss) of PF-04950615 Intravenous Group
Pre-dose, 30 minutes, 1, 8, 24, 48, 72, 96, 120, 168, 336, 504, 672, 840, 1008, 1176, 1344, 1512, 1680, 2016 hours post-dose

Volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Vss is determined when overall intake of drug is in dynamic equilibrium with its elimination.

Terminal Elimination Half-life (t1/2) of PF-04950615
Pre-dose, 30 minutes, 1, 8, 24, 48, 72, 96, 120, 168, 336, 504, 672, 840, 1008, 1176, 1344, 1512, 1680, 2016 hours post-dose

t1/2 is the time measured for the plasma concentration of drug to decrease by one half.

Absolute Bioavailability of PF-04950615 Subcutaneous Groups
Pre-dose, 30 minutes, 1, 8, 24, 48, 72, 96, 120, 168, 336, 504, 672, 840, 1008, 1176, 1344, 1512, 1680, 2016 hours post-dose

Bioavailability is defined as the rate and extent to which the active moiety administered drug reaches the systemic circulation. Absolute bioavailability of the subcutaneous doses was estimated by comparing log-transformed dose-normalized AUClast for subcutaneous to intravenous dose.

Number of Participants With Dose Limiting and Intolerable Treatment-Related Adverse Events (AEs)
Baseline up to Follow-up period (Day 78)

An AE was any untoward medical occurrence attributed to study drug in a participant who received study drug. Dose limiting and intolerable treatment-related AEs were the AEs resulting from drug overdose, drug withdrawal, drug abuse, drug misuse, drug interactions, drug dependency, extravasation, exposure in utero, exposure during breast feeding.

Number of Participants With Treatment-Emergent Adverse Events (AEs), Serious Adverse Events (SAEs) and Treatment-Related Adverse Events (AEs)
Baseline up to Follow-up period (Day 78)

An AE was any untoward medical occurrence in 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-related AE was any untoward medical occurrence attributed to study drug in a participant who received study drug. Treatment-emergent are events between first dose of study drug and up to Day 78 that were absent before treatment or that worsened relative to pretreatment state.

Number of Participants With Adverse Events (AEs) by Severity
Baseline up to Follow-up period (Day 78)

An AE was any untoward medical occurrence in a participant who received study drug. AE was assessed according to common terminology criteria for adverse events (CTCAE) version 4.0 severity grades- Grade 1: mild (asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated); Grade 2: moderate (minimal, local or non invasive intervention indicated); Grade 3: severe (medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling); Grade 4: Life-threatening consequences; urgent intervention indicated and Grade 5: Death related to AE.

Number of Participants With Laboratory Test Abnormalities
Baseline up to Follow-up period (Day 78)

Criteria: Haemoglobin(Hgb), hematocrit, RBC: \<0.8\*lower limit of normal(LLN),mean corpuscular volume, mean corpuscular Hgb concentration \<0.9\*LLN or\>1.1\*upper limit of normal(ULN), platelet\<0.5\*LLN or\>1.75\*ULN, WBC\<0.6\*LLN or\>1.5\*ULN, lymphocyte, neutrophil\<0.8\*LLN or\>1.2\*ULN, basophil, eosinophil, monocyte\>1.2\*ULN; bilirubin\>1.5\*ULN, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, gamma glutamyl transferase, lactate dehydrogenase\>3.0\*ULN,total protein,albumin\<0.8\*LLN or\>1.2\*ULN; blood urea nitrogen, creatinine\>1.3\*ULN,uric acid\>1.2\*ULN;sodium\<0.95\*LLNor\>1.05\*ULN,potassium,chloride,calcium,bicarbonate\<0.9\*LLN or\>1.1\*ULN; glucose\<0.6\*LLN or \>1.5\*ULN, urine specific gravity\<1.003 or\>1.030,urine pH\<4.5or\>8,urine glucose, ketones, urine protein,urine blood/Hgb,urobilinogen,bilirubin,nitrite, leukocyte esterase\>=1; urine RBC,WBC\>=20,urine epithelial cells\>=6,urine granular casts,hyaline casts\>1,urine bacteria\>20,partial thromboplastin time,prothrombin:\>1.1\*ULN.

Number of Participants With Clinically Relevant Changes in Vital Signs
Baseline up to Follow-up period (Day 78)

Criteria for clinically relevant vital signs: supine and standing systolic blood pressure (SBP): less than (\<) 90 millimeter of mercury (mmHg); supine and standing diastolic blood pressure (DBP): \<50 mmHg. Maximum increase from baseline (IFB) or decrease from baseline (DFB) in supine and standing SBP: greater than or equal to (\>=) 30 mmHg and maximum IFB or DFB in supine and standing DBP: \>=20 mmHg. Supine pulse rate: \<40 and greater than (\>) 120 beats per minute (bpm); standing pulse rate: \<40 and \>140 bpm.

Number of Participants With Clinically Relevant Changes in Electrocardiogram (ECG) Parameters
Baseline up to Follow-up period (Day 78)

Criteria for clinically relevant ECG parameters: PR interval: maximum IFB of \>=25 percent or 50 percent; QRS complex: maximum IFB of \>=25 or 50 percent; QTcF interval (Fridericia's Correction): maximum IFB of \>=30 millisecond (msec) to \<60 msec and maximum IFB of \>=60 msec.

Number of Participants With Anti-drug Antibodies (ADA)
Baseline up to Follow-up period (Day 78)

The number of participants with at least one positive ADA were summarized for each treatment arm. Participants with positive antibody titer of \>4.32 milligram/milliliter (mg/mL) were considered as ADA positive.

Secondary Endpoints

Percentage of Participants Achieving Low-density Lipoprotein Cholesterol (LDL-C) Less Than (<) 70 and <100 Milligram Per Deciliter (mg/dL)
Day 29, 57, 85
Percentage of Participants Achieving at Least 30 Percent Decrease in Low-density Lipoprotein Cholesterol (LDL-C)
Day 29, 57, 85
Change From Baseline in Lipid Parameters at Day 29, 57 and 85
Baseline, Day 29, 57, 85
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Treatment APLACEBO_COMPARATOR -
Treatment BEXPERIMENTAL -
Treatment CEXPERIMENTAL -
Treatment DEXPERIMENTAL -
Treatment EEXPERIMENTAL -
Group AEXPERIMENTAL -
Group BEXPERIMENTAL -
Group CEXPERIMENTAL -
Group DEXPERIMENTAL -
APLACEBO_COMPARATOR -
BEXPERIMENTAL -
CEXPERIMENTAL -
DEXPERIMENTAL -
EEXPERIMENTAL -

Interventions

NameTypeDescription
PlaceboBIOLOGICALIntravenous placebo monthly during treatment phase.
StatinDRUGSingle daily dose of atorvastatin (40 or 80 mg), rosuvastatin (20 or 40 mg) or simvastatin (40 or 80 mg) from Day 1 to Day 141/ET.
PF-04950615 (RN316)BIOLOGICALIntravenous 10mg/mL based on weight monthly during treatment phase.
SatinDRUGSingle daily dose of atorvastatin (40 or 80 mg), rosuvastatin (20 or 40 mg) or simvastatin (40 or 80 mg) from Day 1 to Day 141/ET.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites44

Inclusion Criteria: * On a stable daily dose of atorvastatin, rosuvastatin or simvastatin. * Lipids meet the following criteria at screening and prior to dosing: Fasting LDL-C greater than 100 mg/dL and fasting TG less than 400 mg/dL Exclusion Criteria: * History of a cardiovascular or cerebrovas...

Countries:United StatesCanada
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Frequently asked questions about PF-04950615

What is PF-04950615 used for?

PF-04950615 is an investigational monoclonal antibody being studied for hypercholesterolemia, a condition of elevated cholesterol. It was evaluated in patients with hypercholesterolemia and dyslipidemia, including those already taking maximum or high doses of statins. It is not an approved therapy.

What does PF-04950615 target?

PF-04950615 targets PCSK9, a protein involved in regulating cholesterol levels. By binding to PCSK9, the antibody is designed to affect cholesterol handling in the body. This mechanism underlies its development for lowering cholesterol in patients with hypercholesterolemia.

Who is developing PF-04950615?

PF-04950615 is developed by Pfizer, Inc., which trades on the New York Stock Exchange under the ticker PFE. Pfizer sponsored the clinical program evaluating the antibody in patients with hypercholesterolemia and dyslipidemia.

What phase is PF-04950615 in?

PF-04950615 is in Phase 2 development. It is an investigational monoclonal antibody and has not been approved for any indication. Four clinical trials have been completed, including two Phase 1 studies and two Phase 2 studies, with no active trials ongoing.

What clinical trials is PF-04950615 in?

Four completed trials studied PF-04950615: NCT01435382 and NCT01243151 were Phase 1 studies, while NCT01350141 and NCT01342211 were Phase 2 studies in patients on statins. All were randomized, double-blind, and placebo-controlled, enrolling 256 participants total across the United States and Canada.

Is PF-04950615 the same as RN316?

Yes, PF-04950615 is also known as RN316. The names PF-04950615 (RN316), PF-04950615 Dose A, and 200mg PF-04950615 (RN316) refer to the same Pfizer monoclonal antibody targeting PCSK9 for hypercholesterolemia.