Watchers of the Bruton’s kinase (BTK) inhibitor space may be casting renewed skepticism in that direction after Merck KGaA disclosed April 12 that the U.S. FDA placed a partial clinical hold on the sign-up of more patients in work testing evobrutinib in relapsing multiple sclerosis (MS) – but BTK efforts in MS continue in various quarters.

While sorting out a second phase III study design for its cancer therapy and light device with the U.S. FDA, Soligenix Inc. produced positive results from a compatibility study evaluating Hybryte (synthetic hypericin sodium) for treating early stage cutaneous T-cell lymphoma (CTCL). That data, according to Soligenix, bolster findings from the phase III FLASH study, which used the same combination in treating CTCL. According to Christopher Schaber, Soligenix CEO, the important corporate objectives for the compatibility study were to replicate results seen in the FLASH study.

In January, a Wall Street analyst predicted the U.S. FDA’s rejection of Eli Lilly and Co.’s application seeking accelerated approval of amyloid beta-targeting Alzheimer’s candidate, donanemab, would be a “mere footnote” in the drug’s development, a forecast confirmed in the wake of positive top-line phase III data showing donanemab significantly slowed cognitive and functional decline in people with early symptomatic disease.

Saddled with disappointing results from a phase III trial with Filspari (sparsentan) in focal segmental glomerulosclerosis (FSGS), officials of Travere Therapeutics Inc. stressed the differences between that disorder and IgA nephropathy (IgAN) – for which the drug was cleared by the U.S. FDA in February. Two-year IgAN efficacy data are due in the fourth quarter of this year.

A precancerous condition caused by the human papillomavirus (HPV) affects up to 300,000 American women who are diagnosed each year, and yet there are no treatments, just preventive vaccines introduced in 2006 – targeted to younger generations prior to the first sexual encounter. That leaves a large proportion of the female population stuck with a “wait-and-see” approach that involves continuous monitoring of their HPV infection through pap smears to detect cellular changes that could lead to cervical cancer. South San Francisco-based Antiva Biosciences Inc. is seeking to find a better response to this condition known as high-grade cervical intraepithelial neoplasia (CIN2,3) with its lead topical therapeutic, ABI-2280, a prodrug of an acyclic nucleoside phosphonate that is currently in phase I trials.