Title

Safety and Tolerability of PRO 140 in HIV Uninfected Male Volunteers
A Phase I, Randomized, Double Blind, Placebo Controlled, Single-Dose, Rising Dose Cohort Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of PRO 140 in Healthy Volunteers
  • Phase

    Phase 1
  • Study Type

    Interventional
  • Study Participants

    20
The purpose of the study is to determine the safety and tolerability of PRO 140, an investigational anti-HIV drug, administered via intravenous infusion.

Study hypothesis: Single intravenous doses of PRO 140 can be safely administered to humans and will result in measurable concentrations of the product in serum.
PRO 140 is a man-made monoclonal antibody to the chemokine receptor CCR5, which serves as a co-receptor for HIV. In numerous preclinical models of HIV infection, PRO 140 broadly and potently blocks CCR5-mediated HIV entry without blocking the natural activity of CCR5. PRO 140 is being developed for therapy of HIV infected individuals. The purpose of this study is to evaluate the safety and tolerability of PRO 140 in HIV uninfected male volunteers. The pharmacokinetics and pharmacodynamics of PRO 140 will also be assessed in this study.

Participants in this study will be randomly assigned to receive a single dose of one of several possible doses of PRO 140 or placebo. Participants will remain in the clinic for observation and evaluation for 24 hours after the single-dose administration. Follow-up visits will occur at 2, 3, 5, 7, 10, 14, 28, 42, and 60 days post-treatment. Physical exams, electrocardiograms (ECGs), vital signs measurement, adverse event reporting, and blood and urine collection will occur at most visits.
Study Started
Apr 16
2004
Primary Completion
Nov 07
2005
Study Completion
Mar 31
2008
Results Posted
Mar 14
2023
Last Update
Mar 14
2023

Drug PRO 140

Monoclonal antibody to CCR5

  • Other names: Humanized monoclonal antibody to CCR5

Placebo Placebo Comparator

Intravenous placebo for PRO 140

PRO 140 dose 1 Experimental

0.1 mg/kg PRO 140 by intravenous infusion

PRO 140 dose 2 Experimental

0.5 mg/kg PRO 140 by intravenous infusion

PRO 140 dose 3 Experimental

2.0 mg/kg PRO 140 by intravenous infusion

PRO 140 dose 4 Experimental

5.0 mg/kg PRO 140 by intravenous infusion

Criteria

Inclusion Criteria:

Not more than 20% below or 20% above ideal weight for height and estimated frame size
Good health, with no clinically significant abnormal findings on the physical examination, medical history, or laboratory tests

Exclusion Criteria:

History of clinically significant disease
History of clinically significant allergies, including drug allergy
Participated in another clinical trial within the 3 months prior to study entry
HIV infected
Hepatitis B or C virus infected
Active significant infection
Prior exposure, allergy, or known hypersensitivity to PRO 140

Summary

PRO 140 Dose 2

Placebo

PRO 140 Dose 1

PRO 140 Dose 3

PRO 140 Dose 4

All Events

Event Type Organ System Event Term Placebo PRO 140 Dose 1 PRO 140 Dose 2 PRO 140 Dose 3 PRO 140 Dose 4

Safety and Tolerability of PRO 140

Placebo

4.0
number of subjects reporting AEs

PRO 140 Dose 1

4.0
number of subjects reporting AEs

PRO 140 Dose 2

PRO 140 Dose 3

4.0
number of subjects reporting AEs

PRO 140 Dose 4

3.0
number of subjects reporting AEs

Total

20
Participants

Age, Continuous

27
years (Mean)
Standard Deviation: 9

Age, Categorical

Region of Enrollment

Sex: Female, Male

Overall Study

Placebo

PRO 140 Dose 1

PRO 140 Dose 2

PRO 140 Dose 3

PRO 140 Dose 4