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PF-06751979 multiple dose

Phase 1

Healthy | Small molecule | Other |Pfizer, Inc.|Last Updated: Sep 17, 2018

Target and mechanism

ModalitySmall molecule

Also known as PF-06751979, PF-06751979 single dose

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment12

FDA Designations

No designations recorded

Clinical trial landscape

PF-06751979 multiple dose · 2 trials · 2 indications

Phase 1 2
NCT03126721The Study is to Evaluate the Effect of Multiple Doses PF-06751979 on the Pharmacokinetics of Midazolam in Healthy AdultsHealthy
COMPLETED12 Analytics
NCT02793232Clinical Trial In Healthy Volunteers And Health Elderly Volunteers To Evaluate The Safety, Tolerability And Blood Concentration After Single And Multiple Escalating Oral Doses Of PF-06751979.Healthy Subjects
COMPLETED46 Analytics
PHASE1COMPLETED
The Study is to Evaluate the Effect of Multiple Doses PF-06751979 on the Pharmacokinetics of Midazolam in Healthy Adults
HealthyUnlock trial analytics
PHASE1COMPLETED
Clinical Trial In Healthy Volunteers And Health Elderly Volunteers To Evaluate The Safety, Tolerability And Blood Concentration After Single And Multiple Escalating Oral Doses Of PF-06751979.
Healthy SubjectsUnlock trial analytics

Study Endpoints

Primary Endpoints

midazolam Area Under the Curve from time 0 to last quantifiable concentration (AUClast) in Period 1
0, 0.5, 1, 2, 4, 6, 8, 10, 12, 16, 24 hrs post-dose

the plasma midazolam AUC from 0 to tlast (time of last quantifiable concentration) when a single oral midazolam dose given alone

midazolam Cmax on Day 1 in Period 1
0, 0.5, 1, 2, 4, 6, 8, 10, 12, 16, 24 hrs post-dose

the midazolam Cmax when single oral midazolam dose given alone

midazolam Area Under the Curve from time 0 to infinite (AUCinf) in Period 1
0, 0.5, 1, 2, 4, 6, 8, 10, 12, 16, 24 hrs post-dose

the plasma midazolam AUC from 0 to infinity when a single oral midazolam dose given alone

midazolam AUClast in Period 2
0, 0.5, 1, 2, 4, 6, 8, 10, 12, 16, 24, 48 hrs post-dose

the plasma midazolam AUC from 0 to tlast (time of the last quantifiable concentration) when a single oral midazolam given in presence of steady state PF-06751979

midazolam Cmax in Period 2
0, 0.5, 1, 2, 4, 6, 8, 10, 12, 16, 24, 48 hrs post-dose

the midazolam Cmax when a single oral midazolam given in presence of steady state PF-06751979

midazolam AUCinf in Period 2
0, 0.5, 1, 2, 4, 6, 8, 10, 12, 16, 24, 48 hrs post-dose

the plasma midazolam AUC from 0 to infinity when a single oral midazolam given in presence of steady state PF-06751979

Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
Part A: Baseline up to 36 days; Part B and C: Baseline up to 49 days

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 were events between first dose of study drug and up to the follow up visit (up to 36 days in Part A, 49 days in Part B and C), that were absent before treatment or that worsened relative to pretreatment state.

Number of Participants With Abnormal Physical Examinations Findings
Part A: Baseline up to 36 days; Part B and C: Baseline up to 49 days

Full physical examination included head, ears, eyes, nose, mouth, skin, heart, lung, lymph nodes, gastrointestinal, musculoskeletal, and neurological systems. Abnormality in physical examinations was based on investigator's discretion.

Number of Participants With Abnormal Neurological Examinations Findings
Part A: Baseline up to 36 days; Part B and C: Baseline up to 49 days

The neurological examination included the assessment of higher cortical function, the cranial nerves, motor function, deep tendon reflexes, sensory exam, and coordination and gait. Abnormality in neurological examinations was based on investigator's discretion.

Part B and C: Number of Participants With Positive Response on the Columbia Suicide Severity Rating Scale (C-SSRS) at Baseline
Baseline

C-SSRS is a questionnaire to assess suicidal ideation and suicidal behavior. C-SSRS assessed whether participant experienced following: completed suicide; suicide attempt (response of "Yes" on "actual attempt"); preparatory acts toward imminent suicidal behavior ("Yes" on "preparatory acts or behavior", "aborted attempt" or "interrupted attempt"), suicidal ideation ("Yes" on "wish to be dead", "non-specific active suicidal thoughts", "active suicidal ideation with methods without intent to act or some intent to act, without specific plan or with specific plan and intent, any self-injurious behavior with no suicidal intent). In this outcome measure, number of participants with positive response (response of "yes") to suicidal behavior, ideation or any non-suicidal self-injurious behavior, at baseline were reported.

Part B and C: Number of Participants With Positive Response on the Columbia Suicide Severity Rating Scale (C-SSRS) at Day 7
Day 7

C-SSRS is a questionnaire to assess suicidal ideation and suicidal behavior. C-SSRS assessed whether participant experienced following: completed suicide; suicide attempt (response of "Yes" on "actual attempt"); preparatory acts toward imminent suicidal behavior ("Yes" on "preparatory acts or behavior", "aborted attempt" or "interrupted attempt"), suicidal ideation ("Yes" on "wish to be dead", "non-specific active suicidal thoughts", "active suicidal ideation with methods without intent to act or some intent to act, without specific plan or with specific plan and intent, any self-injurious behavior with no suicidal intent). In this outcome measure, number of participants with positive response (response of "yes") to suicidal behavior, ideation or any non-suicidal self-injurious behavior, at Day 7 were reported.

Part B and C: Number of Participants With Positive Response on the Columbia Suicide Severity Rating Scale (C-SSRS) at Day 14
Day 14

C-SSRS is a questionnaire to assess suicidal ideation and suicidal behavior. C-SSRS assessed whether participant experienced following: completed suicide; suicide attempt (response of "Yes" on "actual attempt"); preparatory acts toward imminent suicidal behavior ("Yes" on "preparatory acts or behavior", "aborted attempt" or "interrupted attempt"), suicidal ideation ("Yes" on "wish to be dead", "non-specific active suicidal thoughts", "active suicidal ideation with methods without intent to act or some intent to act, without specific plan or with specific plan and intent, any self-injurious behavior with no suicidal intent). In this outcome measure, number of participants with positive response (response of "yes") to suicidal behavior, ideation or any non-suicidal self-injurious behavior, at Day 14 were reported.

Part B and C: Number of Participants With Positive Response on the Columbia Suicide Severity Rating Scale (C-SSRS) at Day 19
Day 19

C-SSRS is a questionnaire to assess suicidal ideation and suicidal behavior. C-SSRS assessed whether participant experienced following: completed suicide; suicide attempt (response of "Yes" on "actual attempt"); preparatory acts toward imminent suicidal behavior ("Yes" on "preparatory acts or behavior", "aborted attempt" or "interrupted attempt"), suicidal ideation ("Yes" on "wish to be dead", "non-specific active suicidal thoughts", "active suicidal ideation with methods without intent to act or some intent to act, without specific plan or with specific plan and intent, any self-injurious behavior with no suicidal intent). In this outcome measure, number of participants with positive response (response of "yes") to suicidal behavior, ideation or any non-suicidal self-injurious behavior, at Day 19 were reported.

Number of Participants With Abnormal Electrocardiogram (ECG) Findings
Part A: Baseline up to 36 days; Part B and C: Baseline up to 49 days

Criteria for abnormal values of ECG parameters: maximum pulse rate (PR) interval greater than or equal to (\>=)300 milliseconds (msec); maximum PR interval increase from baseline (IFB): \>=25 percent (%) when baseline was greater than (\>)200 msec; or \>=50 % when baseline was greater than (\>)200 msec, maximum QRS interval \>=140 msec and QRS interval IFB: \>=50%. QT interval using Fridericia's correction (QTcF) ranges from 450 msec to maximum less than (\<)480 msec, less than or equal to (\<=) 480 msec to maximum \<500 msec and maximum \>=500 msec, maximum QTcF interval IFB range from \<=30 to \<60 msec and maximum \>=60 msec. Only categories which included at least 1 participant with abnormality are reported in this outcome measure.

Part A: Number of Participants With Cardiac Rhythms of Potential Clinical Concern Assessed By Telemetry
Day 1

In all Periods of Part A, continuous cardiac monitoring was maintained for 8 hours (or longer if considered clinically necessary by the investigator) following dose administration on Day 1. All abnormal cardiac rhythms were recorded and reviewed by the study physician for the presence of rhythms of potential clinical concern.

Number of Participants With Vital Sign Abnormalities
Part A: Baseline up to 36 days; Part B and C: Baseline up to 49 days

Criteria for vital signs abnormalities: systolic blood pressure (SBP) \<90 millimeter of mercury (mmHg), diastolic blood pressure (DBP) \<50 mmHg, supine pulse rate \<40 beats per minute (bpm). Maximum IFB in Supine SBP \>=30 mmHg, Maximum decrease from baseline (DFB) in Supine SBP \>=30 mmHg, maximum DFB in Supine DBP \>=20 mmHg.

Number of Participants With Laboratory Abnormalities
Part A: Baseline up to 36 days; Part B and C: Baseline up to 49 days

Abnormalities criteria:hematology(hemoglobin; hematocrit; RBC\<0.8\*lower limit of normal \[LLN\]; platelets\<0.5\*LLN,\>1.75\*upper limit of normal \[ULN\]; WBC\<0.6\*LLN,\>1.5\*ULN; lymphocytes; neutrophils; basophils; eosinophils; monocytes\<0.8\*LLN,\>1.2\*ULN; coagulation(prothrombin ratio\>1.1\*ULN), liver(bilirubin\>1.5\*ULN; aspartate aminotransferase; alanine aminotransferase; alkaline phosphatase; gamma GT\>0.3\*ULN; protein; albumin\<0.8\*LLN,\>1.2\*ULN); renal(blood urea nitrogen, creatinine\>1.3\*ULN; uric acid\>1.2\*ULN); electrolytes(sodium\<0.95\*LLN,\>1.05\*ULN; potassium; chloride; calcium; bicarbonate\<0.9\*LLN,\>1.1\*ULN), chemistry(glucose\<0.6\*LLN,\>1.5\* ULN); urinalysis(pH \<4.5,\>8; glucose, ketones, protein, blood, urobilinogen, nitrite, bilirubin, leukocyte, esterase\>1; WBC; bacteria\>=20, epithelial cells\>=6; granular casts, hyaline casts, red cell casts, white cell casts\>1; lipids(cholesterol\[C\], LDL-C\>1.3\*ULN; HDL-C\<0.8\*LLN, triglycerides\>1.3\*ULN); hormones(T4, T3, T4, TSH\<0.8\*LLN,\>1.2\*ULN).

Secondary Endpoints

Part A: Maximum Observed Plasma Concentration (Cmax) of PF-06751979
pre-dose, 0.5, 1, 2, 4, 8, 12, 16, 24, 36, 48, 72 and 96 hours post dose on Day 1
Part A: Area Under the Curve From Time Zero to Time of Last Quantifiable Concentration (AUClast) of PF-06751979
pre-dose, 0.5, 1, 2, 4, 8, 12, 16, 24, 36, 48, 72 and 96 hours post dose on Day 1
Part A: Area Under the Plasma Concentration-Time Curve From Time Zero Extrapolated to Infinite Time (AUCinf) of PF-06751979
pre-dose, 0.5, 1, 2, 4, 8, 12, 16, 24, 36, 48, 72 and 96 hours post dose on Day 1
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
oral midazolam aloneEXPERIMENTALsingle dose of oral midazolam administered alone in period 1
oral midazolam administered with multiple doses of PF-06751979EXPERIMENTALsingle dose of midazolam on day 10 with multiple doses of PF-06751979 once a day on Days 1-11 in period 2
Single Ascending Dose CrossoverEXPERIMENTALSingle Ascending Dose in 4-way cross-over design (PF-06751979/Placebo).
Multiple Ascending DoseEXPERIMENTALMultiple dose administration to Healthy Subjects in parallel cohorts (PF-06751979).
Multiple Dose ElderlyEXPERIMENTALMultiple dose administration to Healthy Elderly Subjects (PF-06751979). This cohort is optional.

Interventions

NameTypeDescription
midazolamDRUGa single oral dose of 2 mg midazolam
PF-06751979DRUGmultiple oral doses of PF-06751979 100 mg a day
PF-06751979 single doseDRUGPF-06751979 administered as a single dose suspension in cross-over fashion. Each subject may receive up to 4 study treatments (placebo and up to 3 doses of PF 06751979). The planned dose levels are 200 mg, 400 mg, 700 mg, 200 mg fed (these doses are subject to change based on emerging data).
Placebo single doseDRUGMatched Placebo suspension administered as single dose
PF-06751979 multiple ascending doseDRUGPF-06751979 suspension administered daily for 14 consecutive days to parallel cohorts. The planned dose levels are mg, 100 mg, 200 mg, 340 mg (these are subject to change based on emerging data).
Placebo multiple ascending doseDRUGMatched placebo suspension administered daily for 14 consecutive days.
PF-06751979 multiple doseDRUGPF-06751979 suspension administered daily for 14 consecutive days. The planned dose level is 340 mg (this is subject to change based on emerging data).
Placebo multiple elderly doseDRUGMultiple dose administration to Healthy Elderly Subjects (Placebo)
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Healthy female subjects of nonchildbearing potential and male subjects who, at the time of screening, are between the ages of 18 and 55 years, inclusive. Healthy is defined as no clinically relevant abnormalities identified by a detailed medical history, full physical examinat...

Countries:Belgium
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Frequently asked questions about PF-06751979 multiple dose

What is PF-06751979 used for?

PF-06751979 is an investigational small molecule being studied in healthy subjects and healthy elderly volunteers. It was evaluated in Phase 1 clinical trials to assess its safety, tolerability, and blood concentration after single and multiple escalating oral doses. The drug is not approved and remains in clinical development.

Who makes PF-06751979?

PF-06751979 is being developed by Pfizer, Inc. (NYSE: PFE). The company sponsored Phase 1 clinical trials of the drug in healthy volunteers.

What phase is PF-06751979 in?

PF-06751979 is in Phase 1 clinical development. It has completed two Phase 1 trials, and no active trials are currently listed. The drug is investigational and has not been approved by regulatory authorities.

What clinical trials is PF-06751979 in?

PF-06751979 has been studied in two completed Phase 1 trials. NCT02793232 evaluated safety, tolerability, and blood concentration after single and multiple ascending oral doses in healthy and healthy elderly volunteers. NCT03126721 evaluated the effect of multiple doses on the pharmacokinetics of midazolam in healthy adults.

Is PF-06751979 the same as another drug?

PF-06751979 is the only name provided for this investigational drug. No alternative names have been reported for this compound.