PF-05231023

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 events were between first dose of study drug and up to 28 days after last dose that were absent before treatment or that worsened relative to pre-treatment state.

Criteria for laboratory test abnormality: Hematology (hemoglobin, hematocrit, red blood corpuscles \[RBC\] count: less than \[\<\]0.8\*lower limit of normal \[LLN\], platelets: \<0.5\*LLN/greater than \[\>\]1.75\*upper limit of normal \[ULN\], leukocytes: \<0.6\*LLN or \>1.5\*ULN, lymphocytes, total neutrophils: \<0.8\*LLN or \>1.2\*ULN, basophils, eosinophil: \<0.8\*LLN, monocytes: \>1.2\*ULN); Liver Function (aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase: \>0.3\*ULN, total protein, albumin: \<0.8\*LLN or \>1.2\*ULN); total bilirubin, direct bilirubin, indirect bilirubin: \>1.5\*ULN; Renal Function (blood urea nitrogen, creatinine: \>1.3\*ULN, uric acid: \>1.2\*ULN); Electrolytes (sodium: \<0.95\*LLN or \>1.05\*ULN, potassium, chloride, calcium, bicarbonate: \<0.9\*LLN or \>1.1\*ULN; creatine kinase: \>2.0\*ULN; glucose fasting: \<0.6\*LLN or \>1.5\*ULN, urine white blood corpuscles \[WBC\] and RBC: greater than or equal to (\>=) 20/High Power Field \[HPF\]).

Criteria for clinically significant vital signs abnormalities included supine/sitting pulse rate of \<40 beats per minute (bpm) or \>120 bpm, supine systolic blood pressure (SBP) of \<90 millimeter of mercury (mmHg), \>=30 mmHg maximum increase and decrease from baseline in same posture, supine diastolic blood pressure (DBP) of \<50 mmHg; \>=20 mmHg maximum increase and decrease from baseline in same posture.

Clinically significant ECG findings included PR interval \>=300 milliseconds (msec) or \>=25 percent (%) increase from baseline (if baseline PR interval \>200 msec) or \>=50% increase (if baseline PR interval less than or equal to \[\<=\] 200 msec); QRS interval \>=140 msec or \>=50% increase from baseline; QT interval \>=500 msec, corrected QT interval based on Fridericia's formula (QTcF) 450 to \<480 msec, 480 to \<500 msec, \>=500 msec or \>=30 msec but \<60 msec increase from baseline or \>=60 msec increase from baseline.

Physical examination included general examination and examination of head, ears, eyes, nose, mouth, throat, neck, abdomen, skin, heart, lungs, lymph nodes, and gastrointestinal and musculoskeletal and neurological system.

Results are reported in micro international units per milliliter (mcIU/mL).

Anti-PF-05231023 antibodies and neutralizing antibodies were analyzed only for participants who received PF-05231023 as per planned analysis. One sample at Day 1 was inadvertently tested for neutralizing antibody even though the corresponding anti-PF-05231023 antibody was negative.

Anti-PF-05231023 antibodies and neutralizing antibodies were analyzed only for participants who received PF-05231023 as per planned analysis. One sample at Day 39 was inadvertently tested for neutralizing antibody even though the corresponding anti-PF-05231023 antibody was negative.

Physical examination included assessment of height, weight, blood pressure, pulse rate and body temperature. Criteria for abnormal physical findings was based on investigator's discretion and were reported as adverse event (AE), as planned.

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 Day 77 which were absent before treatment or that worsened relative to pretreatment state.

Criteria for laboratory tests abnormalities included: hemoglobin, hematocrit and red blood cells (RBCs)(less than \[\<\] 0.8\*lower limit of normal\[LLN\]); leucocytes (\<0.6/greater than \[\>\]1.5\*upper limit of normal \[ULN\]); platelets (\<0.5\*LLN\>\</0\>1.75\*ULN); neutrophils, lymphocytes (\<0.8\*LLN\>\</0\>1.2\*ULN); eosinophils, basophils, monocytes (\>1.2\*ULN); total bilirubin, direct bilirubin, indirect bilirubin (\>1.5\*ULN); aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (\>3\*ULN), total protein, albumin (\<0.8\*LLN\>\</0\>1.2\*ULN); creatinine, urea (\>1.3\*ULN); glucose (\<0.6\*LLN\>\</0\>1.5\*ULN); uric acid (\>1.2\*ULN); sodium, potassium, chloride, calcium, bicarbonate (\<0.9\*LLN\>\</0\>1.1\*ULN); urine RBCs, urine white blood cells (WBCs) (\> or equal\[=\]20 high-powered field), urine bacteria \>20 high-powered field. Total number of participants with any laboratory abnormalities were reported.

Criteria for vital signs abnormalities: supine systolic blood pressure (SBP) \<90 millimeter of mercury (mm Hg), supine diastolic BP (DBP) \<50 mm Hg, supine pulse rate \<40 beats per minute (bpm), \> 120 bpm. Maximum increase or decrease from baseline in supine SBP \>=30 mm Hg and maximum increase or decrease from baseline in supine DBP \>=20 mm Hg.

Criteria for potential clinical concern in ECG parameters: maximum PR interval of greater than or equal to (\>=) 300 milliseconds (msec), maximum QRS interval \>=140 msec, maximum QTCF interval (Fridericia's Correction) of 450 to \<480 msec, 480 to \<500 msec and \>=500 msec, maximum increase of \>=25 percent (%) for baseline value of \>200 msec and \>=50% for baseline value of less than or equal to (\<=) 200 msec for PR interval, maximum increase from baseline of \>=50% for QRS interval, maximum increase from baseline of \>=30 msec to \<60 msec and maximum increase from baseline of \>60 msec in QTCF interval (Fridericia's Correction).

Criteria for blood glucose abnormality: Blood glucose levels \<0.6\* LLN or \>1.5\* ULN.

Capillary blood glucose levels were collected to observe any hypoglycemic adverse events. Hypoglycemia was assessed as following categories; Severe hypoglycemia (1. Participant was unable to treat himself/herself, requiring assistance of another person to actively administer carbohydrate, glucagon 2. Exhibited one of following neurological symptoms memory loss, uncontrollable behavior, irrational behavior, unusual difficulty in awakening, suspected seizure, seizure or loss of consciousness, 3. Glucose \<50 mg/dL confirmed on repeat measure); Documented symptomatic hypoglycemia (1. Symptoms of hypoglycaemia accompanied by a measured glucose concentration \<=70 mg/dL); asymptomatic hypoglycemia (not accompanied by typical symptoms of hypoglycaemia but with a measured glucose concentration \<=70 mg/dL), and probable hypoglycemia (typical symptoms of hypoglycaemia are not accompanied by a glucose determination, but was presumably caused by a plasma glucose concentration \<=70 mg/dL).

Assays for the determination of human anti-drug (Anti-PF-05231023) antibodies (ADA) was performed.

Assays for the determination of human anti-drug (Anti-PF-05231023) antibodies (ADA) was performed.

Assays for the determination of human anti-drug (Anti-PF-05231023) antibodies (ADA) was performed.

Assays for the determination of human anti-drug (Anti-PF-05231023) antibodies (ADA) was performed.

Assays for the determination of human anti-drug (Anti-PF-05231023) antibodies (ADA) was performed.

Plasma samples for IGF-1, and GH were analyzed using a validated, sensitive, and specific immunochromatographic membrane assay (ICMA) fluorescence method. Plasma samples for IGFBP-1, IGFBP-2 were assayed using a validated, sensitive, and specific colorimetric sandwich (enzyme-linked immunosorbent assay) ELISA method.

Plasma samples for IGF-1, and GH were analyzed using a validated, sensitive, and specific immunochromatographic membrane assay (ICMA) fluorescence method. Plasma samples for IGFBP-1, IGFBP-2 were assayed using a validated, sensitive, and specific colorimetric sandwich ELISA method.

Plasma samples for IGF-1, and GH were analyzed using a validated, sensitive, and specific immunochromatographic membrane assay (ICMA) fluorescence method. Plasma samples for IGFBP-1, IGFBP-2 were assayed using a validated, sensitive, and specific colorimetric sandwich ELISA method.

Plasma samples for IGF-1, and GH were analyzed using a validated, sensitive, and specific immunochromatographic membrane assay (ICMA) fluorescence method. Plasma samples for IGFBP-1, IGFBP-2 were assayed using a validated, sensitive, and specific colorimetric sandwich ELISA method.

Plasma samples for IGF-1, and GH were analyzed using a validated, sensitive, and specific immunochromatographic membrane assay (ICMA) fluorescence method. Plasma samples for IGFBP-1, IGFBP-2 were assayed using a validated, sensitive, and specific colorimetric sandwich ELISA method.

Plasma samples for IGF-1, and GH were analyzed using a validated, sensitive, and specific immunochromatographic membrane assay (ICMA) fluorescence method. Plasma samples for IGFBP-1, IGFBP-2 were assayed using a validated, sensitive, and specific colorimetric sandwich ELISA method.

Plasma samples were assayed using a validated, sensitive, and specific ICMA fluorescence method.

Plasma samples were assayed using a validated, sensitive, and specific ICMA fluorescence method.

Plasma samples were assayed using a validated, sensitive, and specific ICMA fluorescence method.

Plasma samples were assayed using a validated, sensitive, and specific ICMA fluorescence method.

Plasma samples were assayed using a validated, sensitive, and specific ICMA fluorescence method.

Plasma samples were assayed using a validated, sensitive, and specific ICMA fluorescence method.

Criteria for abnormal cardiac rhythms was based on investigator's discretion and were reported as adverse event (AE), as planned.