TAK-243 (MLN7243) is a small molecule inhibitor of ubiquitin-activating enzyme (UAE), with potential antineoplastic activity, which was developed by Takeda Oncology, Millennium. MLN7243 binds to and inhibits UAE, which prevents both protein ubiquitination and subsequent protein degradation by the proteasome. This inhibits tumor cell proliferation and survival. UAE, also called ubiquitin E1 enzyme (UBA1; E1), is more active in cancer cells than in normal, healthy cells. Currently, TAK-243 is in phase I clinical trial evaluating safety, tolerability, pharmacokinetics, pharmacodynamics against advanced malignant solid tumors phase.

Dexecadotril is powerful and selective inhibitor of neprilysin. It is anti-hypotensive agent. Dexecadotril was found to possess chemoprotective activity. It might be biologically active against multiple myeloma. It was under clinical evaluation as an intestinal antisecretatory agent.

Ampion (LMWF-5A) is a low molecular weight fraction of human serum albumin (HSA) currently being developed for the treatment of pain due to osteoarthritis of the knee. The primary constituent ingredient of Ampion is aspartyl-alanyl diketopiperazine, or DA-DKP, an endogenous immunomodulatory molecule derived from the N-terminus of HSA. Based on published pre-clinical and clinical research, DA-DKP plays a significant role in the regulation of inflammation. DA-DKP is believed to reduce inflammation by suppressing pro-inflammatory cytokine production in T-cells. Ampion also contains other known small molecules that confer anti-inflammatory effects to complement the activity of DA-DKP and derive demonstrated in-vitro and in-vivo effects. Ampio is currently developing Ampion as an intra-articular injection to treat osteoarthritis of the knee, and the final US pivotal trial is underway. Additional pre-clinical and clinical studies have been completed or are underway for Ampion and other chronic inflammatory conditions.

Thiorphan is the first potent synthetic inhibitor of enkephalinase. Thiorphan displays antinociceptive activity after systemic administration. Thiorphan also inhibits to a lesser extent the widely distributed angiotensin-converting enzyme, a carboxydipeptidase implicated in blood pressure regulation. Thiorphan failed to potentiate allergen-induced airway responses in asthma. Thiorphan significantly reduced the castor oil-induced diarrhea in rats when administered intravenously but not when administered intracerebroventricularly. Racecadotril, via its active metabolite thiorphan, was consistently effective in animal models and patients with various forms of acute diarrhea by inhibiting pathologic (but not basal) secretion from the gut without changing gastro-intestinal transit time or motility.

Betanin (betanidin-5-O-beta-glucoside, Beetroot Red) is a red glycosidic food dye obtained from beets. Betanin is the most common betacyanin in the plant kingdom. According to the regulation on food additives betanin is permitted quantum satis as a natural red food colorant (E162). Moreover, betanin is used as colorant in cosmetics and pharmaceuticals. Recently, potential health benefits of betalains and betalain-rich foods (e.g. red beet, Opuntia sp.) have been discussed. Betanin is a scavenger of reactive oxygen species and exhibits gene-regulatory activity partly via nuclear factor (erythroid-derived 2)-like 2-(Nrf2) dependent signaling pathways. Betanin may induce phase II enzymes and antioxidant defense mechanisms. Furthermore, betanin possibly prevents LDL oxidation and DNA damage. Potential blood pressure lowering effects of red beet seem to be mainly mediated by dietary nitrate rather than by betanin per se.