In clinical trials of romidepsin in patients with CTLC and PTLC, the rates of serum enzyme elevations during therapy ranged from 7% to 20%, but the abnormalities were usually transient and mild and did not require dose modifications. Serum ALT elevations above 5 times ULN occurred in 6% of patients. In the preregistration clinical trials of romidepsin, there were no reports of hepatitis, jaundice or clinically apparent liver injury among the treated subjects. Romidepsin has had limited clinical use, but there is no evidence that it is associated with significant liver injury.
Romidepsin also has immunomodulatory activities and has been reported to cause reactivation of latent DNA viruses including Epstein-Barr, varicella zoster and hepatitis B virus. Reactivation of hepatitis B occurred in a patient who was initially negative for HBsAg, but reactive for anti-HBc and anti-HBs. Nevertheless, the clinical features of hepatitis B reactivation were mild and responded to oral antiviral therapy. In patients with EBV associated lymphoma, romidepsin has been associated with severe reactivation of EBV infection and acute hepatitis that can be severe and even fatal.
Likelihood score: C (probable cause of clinically apparent liver injury, which can be due to reactivation of hepatitis B or EBV infection).
Interleukin-2:remodeling and glycoconjugation of interleukin-2
申请人:DeFrees Shawn
公开号:US20050031584A1
公开(公告)日:2005-02-10
The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
1,5-DIHYDRO-2H-PYRROL-2-ONE COMPOUNDS AND METHODS OF USING SAME
申请人:Frequency Therapeutics, Inc.
公开号:US20180214458A1
公开(公告)日:2018-08-02
The present invention relates to 1,5-dihydro-2H-pyrrol-2-one compounds and methods of using them to induce self-renewal of stem/progenitor supporting cells, including inducing the stem/progenitor cells to proliferate while maintaining, in the daughter cells, the capacity to differentiate into tissue cells.
1,2-DIHYDRO-3H-PYRAZOL-3-ONE COMPOUNDS AND METHODS OF USING SAME
申请人:Frequency Therapeutics, Inc.
公开号:US20200316089A1
公开(公告)日:2020-10-08
The present disclosure relates to 1,2-dihydro-3H-pyrazol-3-one compounds and methods of using them to induce self-renewal of stem/progenitor supporting cells, including inducing the stem/progenitor cells to proliferate while maintaining, in the daughter cells, the capacity to differentiate into tissue cells.
The invention relates to a pharmaceutical composition, particularly oral dosage forms, comprising a DAC inhibitor in combination with an enhancer to promote absorption of the DAC inhibitor at the GIT cell lining. The enhancer is a medium chain fatty acid or derivative thereof having a carbon chain length of from 6 to 20 carbon atoms. In certain embodiments, the solid oral dosage form is a controlled release dosage form such as a delayed release dosage form.
The invention provides an improved process for preparing romidepsin. The process involves producing, purifying, or storing romidepsin under conditions that prevent the formation of undesired adducts. Purifying romidepsin at an apparent pH lower than approximately 6.0 (e.g., between an apparent pH of 4.0 and 6.0) has been discovered to prevent the reduction of the disulfide bond of romidepsin and the subsequent formation of dimerized, oligomerized or polymerized adducts. The invention also provides pharmaceutical compositions of monomeric romidepsin free of dimerized, oligomerized, or polymerized adducts.