A Randomized, Double-Blind, Placebo-Controlled, Multiple Dose Escalation Study to Evaluate the Safety and Pharmacokinetics of ELX-02 in Healthy Subjects.

ELX-02 is an investigational compound being developed as a therapy for genetic diseases caused by nonsense mutations such as cystic fibrosis. Structurally, ELX-02 is an aminoglycoside analogue that induces read-through of nonsense mutations through interaction with the ribosome, resulting in the production of full-length functional proteins. This phase 1 multiple-ascending-dose trial evaluated the safety and pharmacokinetics of ELX-02 in 62 healthy volunteers.

Phase 1 Renal Impairment Trial Results Supports Targeted Individualized Dosing of ELX-02 in Patients With Nephropathic Cystinosis.

The aim of this study was to assess the pharmacokinetics (PK) and safety of ELX-02 in a renally impaired population and apply these findings to the individualized dosing of patients with nephropathic cystinosis. This phase 1 renal impairment (RI; mild, moderate, or severe), single-dose, PK, and safety evaluation included 6 participants assigned to each RI group. Six healthy controls with normal renal function were matched to participants with renal impairment.

Rebound eosinophilia after treatment of hypereosinophilic syndrome and eosinophilic gastroenteritis with monoclonal anti-IL-5 antibody SCH55700.

Background: Hypereosinophilic syndrome and eosinophilic gastroenteritis with peripheral eosinophilia are characterized by sustained eosinophilia and eosinophil-mediated tissue damage. Although treatment with the humanized monoclonal anti-IL-5 antibody SCH55700 resulted in improvement of eosinophilia and clinical symptoms in 6 of 8 of patients with hypereosinophilic syndrome or eosinophilic gastroenteritis with peripheral eosinophilia for as long as 12 weeks, eosinophil counts subsequently rose above baseline levels, accompanied by an exacerbation of symptoms.

Objective: To identify the mechanism underlying this rebound eosinophilia.

Safety and efficacy of the monoclonal anti-interleukin-5 antibody SCH55700 in the treatment of patients with hypereosinophilic syndrome.

Four patients with hypereosinophilic syndrome (HES) refractory to or intolerant of treatment with conventional therapy were treated with a single 1 mg/kg dose of SCH55700. SCH55700 was extremely well tolerated. Two of the 4 patients responded with a fall in eosinophil counts to within the normal range within 48 hours of receiving the drug, accompanied by marked improvement in clinical signs and symptoms.

Phase I trial of a humanized, Fc receptor nonbinding OKT3 antibody, huOKT3gamma1(Ala-Ala) in the treatment of acute renal allograft rejection.

Background: HuOKT3gamma1(Ala-Ala) is a genetically-engineered derivative of the parental murine OKT3 monoclonal antibody, in which the six complementarity-determining regions have been grafted within a human IgG1 mAb, and whose C(H)2 region has been altered by site-directed mutagenesis to alter FcR-binding activity, thereby eliminating T cell activation properties. This report describes the results of a phase I trial of huOKT3gamma1(Ala-Ala) treatment of acute renal allograft rejection.

Methods: Acute renal allograft rejection in kidney and kidney-pancreas transplant recipients was treated with huOKT3gamma1(Ala-Ala).