Title

Pharmacokinetics and Pharmacodynamics of RPH-104 in Healthy Subjects
A Randomized, Double-blind, Placebo-controlled, Single-center, Phase I, Single-dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of RPH-104 in Healthy Subjects
  • Phase

    Phase 1
  • Study Type

    Interventional
  • Study Participants

    35
The purpose of this first in human study is to evaluate the safety and tolerability of RPH-104 in humans.
RPH-104 is a macromolecular compound with a molecular weight of 152.715 kilodalton (Data on file) and is capable of binding human interleukin-1 beta (IL-1β). It has also been shown in vitro to be a highly potent inhibitor of IL-1β signalling pathway, with low picomolar inhibitor activity. In this First in Human study, RPH-104 will be evaluated primarily for its safety and tolerability. In a phase I study conducted with health volunteers, a similar monoclonal antibody, canakinumab, was investigated in terms of pharmacokinetics and pharmacodynamics besides efficacy and safety. Similarly, this aimed to investigate effects of RPH-104 on selected pharmacodynamic parameters, including Anti-Drug Antibodies (ADA) along with obtaining first human data on pharmacokinetics of RPH-104 in humans will be investigated in the same study.
Study Started
Jan 31
2016
Primary Completion
Jun 30
2017
Study Completion
Jun 30
2017
Results Posted
Oct 04
2019
Last Update
Dec 28
2021

Biological RPH-104

Anti-IL-1 Mab

Other Sodium chloride Sterile Injection 0.9% w/v

Sterile saline solution

Treatment Active Comparator

A single dose of RPH-104 (4, 20, 40, 80 or 160 mg) will be administered subcutaneously.

Placebo Placebo Comparator

A single 0.9% sodium chloride injection will be administered subcutaneously.

Criteria

Inclusion Criteria:

Healthy subjects.
Male or female subjects between 18 and 35 years old (inclusive).
Subject who has normal body weight as determined by a body mass index (BMI) of between 18 kg/m² and 30 kg/m² (inclusive) and within a body weight of ≥50kg and ≤120kg.

Exclusion Criteria:

Subject who has a history or presence of cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrinological, dermatological, neurological, psychiatric, and hematological or immunological disorder(s), and/or any condition that could constitute a potential safety risk factor or could alter the absorption, distribution, metabolism or elimination of the study drugs.
Subject who has positive immunoglobulin-M (IgM) antibodies against Epstein-Barr virus (EBV)-viral capsid antigen (VCA) (IgM-anti-EBV-VCA) and Cytomegalovirus (CMV).
Subject who has a positive Quantiferon TB-Gold (TB) test
Subject who is positive to Human Immunodeficiency Virus-1/2 antibody (HIV-1/2Ab).
Subject who has serum hepatitis, or is a carrier of the Hepatitis B surface antigen (HBsAg), or is Hepatitis C virus antibody (HCV-Ab) positive.

Summary

Treatment

Placebo

All Events

Event Type Organ System Event Term Treatment Placebo

Adverse Events

Number of participants with study drug related adverse events

Treatment

Placebo

Serious Adverse Events

Number of Participants with Study Drug Related Serious Adverse Events

Treatment

Placebo

Respiratory Rate

Percentage of participants with abnormal respiratory rate. The normal respiration rate for an adult at rest is 12 to 20 breaths per minute.

Treatment

Placebo

Blood Pressure

Percentage of participants with abnormal blood pressure. An optimal blood pressure level is a reading under 120/80 mmHg

Treatment

Placebo

Oxygen Saturation

Percentage of participants with abnormal oxygen saturation. Normal pulse oximeter readings usually range from 95 to 100 percent. Values under 90 percent are considered low.

Treatment

Placebo

Body Temperature

Percentage of participants with abnormal body temperature. Among adults, the average body temperature ranges from 97°F (36.1°C) to 99°F (37.2°C).

Treatment

Placebo

Clinical Laboratory Tests

Percentage of participants with abnormal clinical laboratory tests. Normal laboratory ranges of the central laboratory were used.

Treatment

Placebo

RPH-104 - Area Under the Curve (AUC)

Mean AUC 0-t (area under the concentration- time curve from time zero to day 30)

Treatment

160 mg

3390000.0
hr*ng/mL (Mean)
Standard Deviation: 1450000

20 mg

430000.0
hr*ng/mL (Mean)
Standard Deviation: 95700

40 mg

661000.0
hr*ng/mL (Mean)
Standard Deviation: 158000

4 mg

74500.0
hr*ng/mL (Mean)
Standard Deviation: 24700

80 mg

1610000.0
hr*ng/mL (Mean)
Standard Deviation: 317000

Placebo

160 mg

20 mg

40 mg

4 mg

80 mg

RPH-104 - Time to Maximum Concentration (Tmax)

Median Tmax. Definition of Tmax is time at which Cmax occurs.

Treatment

160 mg

120.0
hr (Median)
Full Range: 72.0 to 120.0

20 mg

96.0
hr (Median)
Full Range: 48.0 to 96.2

40 mg

120.0
hr (Median)
Full Range: 96.0 to 192.0

4 mg

96.0
hr (Median)
Full Range: 94.4 to 192.0

80 mg

96.0
hr (Median)
Full Range: 72.0 to 120.0

Placebo

160 mg

20 mg

40 mg

4 mg

80 mg

RPH-104 - Elimination Half-life (t1/2)

Mean t½. Definition of t½ is terminal elimination half-life.

Treatment

160 mg

243.0
hr (Mean)
Standard Deviation: 40.4

20 mg

249.0
hr (Mean)
Standard Deviation: 6.08

40 mg

255.0
hr (Mean)
Standard Deviation: 43.1

4 mg

245.0
hr (Mean)
Standard Deviation: 9.50

80 mg

235.0
hr (Mean)
Standard Deviation: 22.8

Placebo

160 mg

20 mg

40 mg

4 mg

80 mg

RPH-104 - Maximum Plasma Concentration (Cmax)

Mean Cmax. Highest concentration determined in the measuring interval.

Treatment

160 mg

10300.0
ng/mL (Mean)
Standard Deviation: 4470

20 mg

1280.0
ng/mL (Mean)
Standard Deviation: 402

40 mg

1650.0
ng/mL (Mean)
Standard Deviation: 257

4 mg

198.0
ng/mL (Mean)
Standard Deviation: 89.1

80 mg

5120.0
ng/mL (Mean)
Standard Deviation: 1410

Placebo

160 mg

20 mg

40 mg

4 mg

80 mg

Total

35
Participants

Race and Ethnicity Not Collected

0
Participants

Age, Customized

Region of Enrollment

Sex: Female, Male

Overall Study

Treatment

Placebo