With rezpegaldesleukin (rezpeg) phase IIb data in alopecia areata holding strong over time, backers of Nektar Therapeutics Inc. are hopeful that the biologic can do for the hair loss market what Dupixent (dupilumab, Regeneron Pharmaceuticals Inc./Sanofi SA) did in atopic dermatitis.
Marking an important day for those with atopic dermatitis, shares of two biopharmas surged on clinical data suggesting new biologics are on their way to help address 40% of patients with uncontrolled disease.
Among the strong points of Nektar Therapeutics Inc.’s atopic dermatitis (AD) prospect, rezpegaldesleukin (rezpeg), an IL-2 pathway agonist and regulatory T-cell proliferator, is the drug’s faster onset of action – a feature that experts say may help differentiate the compound from competitors in the OX40 space.
Atopic dermatitis data from Nektar Therapeutics Inc. put investors even more in the mood for further results with rezpegaldesleukin (rezpeg), an IL-2 pathway agonist and regulatory T-cell proliferator, also in the works for severe to very severe alopecia areata.
The sparsity of mid-to-late stage prospects in atopic dermatitis (AD, or eczema) – which has proved an especially challenging indication – plus some newsmaking fizzles in the space have caused developers to probe new targets with particular intensity. Most popular approaches thus far involve IL-4, IL-13, thymic stromal lymphopoietin and JAK. Developers have stumbled for varying reasons such as high placebo response rates, safety or lack of clinical proof of concept. Among the potential AD rescuers is Nektar Therapeutics Inc. with rezpegaldesleukin (rezpeg), which takes aim at IL-2.
When Nektar Therapeutics Inc. decided to push ahead with development of Treg stimulator rezpegaldesleukin (rezpeg) in atopic dermatitis despite what appeared to be middling early stage data, investors weren’t exactly jumping up and down. But it turns out those data are more promising than originally thought.
Nektar Therapeutics Inc. President and CEO Howard Robin didn’t mince words during a call with investors after market close Feb. 23 to disclose top-line data from a phase II study testing rezpegaldesleukin (rezpeg) in systemic lupus erythematosus, which fell short of partner Eli Lilly and Co.’s criteria for advancing to phase III and raised uncertainty as to how the big pharma might proceed in other indications such as atopic dermatitis (AD).
