Hansa Biopharma AB

The goal of this clinical trial is to learn about the efficacy and safety of imlifidase in highly sensitized paediatric patients, 1-17 years old, with end stage renal disease (ESRD). The main questions it aims to answer are: * Does imlifidase treatment result in crossmatch conversion that enables transplantation? * How is the function of the transplanted kidney? The participants will be hospitalised in accordance with the normal routines for transplanted patients. The patients will receive medication to prevent rejection of the donor kidney, and because such treatment make the body more vulnerable medications to prevent infections.Show more

Clinical trial rationale: CNS is an ultra-rare (\<1/1 million newborns), autosomal recessive disorder of bilirubin conjugation caused by mutation in the gene coding for uridine 5'-diphosphate glucuronosyltransferase (UGT1A1), that causes the accumulation of neurotoxic unconjugated bilirubin (UCB). Reduction of UCB is managed with phenobarbital in mild CNS, and daily phototherapy in severe CNS. There is no authorized curative medical treatment for CNS. Liver transplantation is currently the only curative treatment for severe CNS. GNT0003 is a genetically modified recombinant (r) viral vector composed of the AAV8 viral capsid carrying the UGT1A1 transgene which aims to correct the dysfunction of the mutated gene by achieving durable expression of a functional copy of the affected gene. Imlifidase (IgG-degrading enzyme) has demonstrated its efficacy in highly sensitized adult kidney transplant patients. To give participants with pre-existing anti-AAV8 antibodies access to gene therapy treatments, this trial aims to demonstrate the safety and efficacy of GNT0003 following imlifidase pre-treatment in adult participants with severe CNS requiring daily phototherapy and presenting with pre-existing anti-AAV8 antibodies. Primary objective: to assess efficacy of a single intravenous administration of GNT0003 following imlifidase pre-treatment in participants with severe CNS requiring phototherapy and pre-existing AAV8 antibodies Secondary objective: to collect data on safety and tolerability of GNT0003 and imlifidase, efficacy of imlifidase, pharmacokinetic and pharmacodynamic profile of GNT0003, and Quality of Life. The trial will include 3 parts: * A baseline period for at least 3 months * A treatment period * A follow-up period: * Initial post-treatment follow-up over 48 weeks * Long-term follow-up for 4 additional years This trial will be conducted in accordance with the International Conference on Harmonization Guideline for Good Clinical Practice and the Declaration of Helsinki. Participants must be consented using the approved Informed Consent Form before any procedures specified in the protocol are performed.Show more

A prospective, post-authorisation long-term follow-up trial of patients previously treated with imlifidase prior to kidney transplantation, including a non-comparative concurrent reference cohort.

The goal of this follow-up study is to learn about long-term patient survival and graft function in highly sensitized patients who have received desensitization treatment with imlifidase or standard of care (SoC) in order to enable kidney transplantation in clinical study ConfIdeS (20-HMedIdeS-17, NCT04935177).Show more

None that we track as of October 2026. No Hansa Biopharma AB label in the FDA's openFDA database matches a rare disease on Trial Friend, which usually means the company has no approved product yet or its approved drugs are for common conditions.

In development: the trials list on this page shows what Hansa Biopharma AB is recruiting for now, and the FDA calendar lists any application once a decision date is public.