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A Phase II Randomized, Double-Blind, Two-Period Cross-Over Study to Evaluate the Pharmacokinetics, Safety and Tolerability of a Liquid Formulation of Palizvizumab (MEDI-493, Synagis)

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MedImmune

Status and phase

Completed
Phase 2

Conditions

-Unhealthy Children With a History of Prematurity

Treatments

Drug: MEDI-493

Study type

Interventional

Funder types

Industry

Identifiers

NCT00240929
MI-CP097

Details and patient eligibility

About

A total of 150 children who meet the entry criteria will be randomized 1:1 to receive one of the following treatment sequence A or B.

Full description

Phase II, Double-blind, two-period, cross-over study to be conducted at 20 sites the U.S. A total of 150 children who meet the entry criteria will be randomized 1:1 to receive one of the following treatment sequence: Sequence A (single dose of the liquid formulation on Study Day 0 and a single dose of the lyophilized formulation on Study Day 30) or Sequence B (single dose of the lyophized forumation on Study Day 0 and single dose of the liquid formulation on Study Day 30). Children will be followed for adverse events through 30 days after each injection of study drug and will have blood collected for determination of palivizumab concentrations in serum.

Enrollment

150 patients

Sex

All

Ages

5 to 6 months old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • The child must have been born at greater than or equal to 35 weeks gestation and be greater than or equal to 6 months of age at the time of randomization (child must be randomized on or before their 6-month birthday)
  • The child's parent or legal guardian must provide written informed consent; and
  • The child must be able to complete the follow-up visits on Study Days 30 and 60 within the protocol specified windows (±2 days)
  • Parent/legal guardian of patient has available telephone access.

Exclusion criteria

  • Be hospitalized;
  • Birth hospitalization > 6 weeks duration;
  • Be receiving mechanical ventilation at the time of study entry (including CPAP);
  • Bronchopulmonary dysplasia (BPD), defined as history of prematurity and associated chronic lung disease with oxygen requirement for >28 days;
  • Congenital heart disease (CHD). (Children with medically or surgically corrected [closed] patent ductus arteriosus and no other CHD may be enrolled.)
  • Known renal impairment, hepatic dysfunction, chronic seizure disorder, or immunodeficiency;
  • Any of the following laboratory findings in blood obtained within 7 days prior to study entry:
  • BUN or creatinine >1.5´ the upper limit of normal for age
  • AST (SGOT) or ALT (SGPT) >1.5´ the upper limit of normal for age
  • hemoglobin <9.0 gm/dL
  • white blood cell count <4,000 cells/mm3
  • platelet count <110,000 cells/mm3
  • Acute illness or progressive clinical disorder;
  • History of recent difficult venous access;
  • Active infection, including acute RSV infection;
  • Previous reaction to IGIV, blood products, or other foreign proteins;
  • Received within the past 120 days or currently receiving IGIV, other immunoglobulin products, or any investigational agents;
  • Have ever received palivizumab;
  • Currently participating in any investigational study; or
  • Previously participated in any investigational study of RSV vaccines or monoclonal antibodies.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Crossover Assignment

Masking

Double Blind

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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