Pamatolol is a beta-Adrenergic receptor antagonist was studied as an Antiarrhythmic agent. The phase I clinical trial has shown that the drug was relatively cardioselective in man. Information about the further development of this drug is not available.

SP-2086 H3PO4 (Retagliptin Phosphate), tetrahydro-imidazo[1,5-a] pyrazine derivative, is a competitive DPP-4 inhibitor innovated in China under development by Jiangsu Hengrui Medicine for the treatment of Type 2 diabetes. In completed phase II trials, retagliptin monotherapy or in combination with metformin significantly decreased the HbA1c level in type 2 diabetic patients. Two phase III trials for retagliptin monotherapy aCnd in combination with metformin, respectively, were ongoing in China. Jiangsu Hengrui Medicine withdrew its application from the Chinese FDA in April 2016 but is expected to refile the application.

Pargeverine (also known as a propinox) is an antispasmodic drug that was studied for the treatment of disorders of the gastrointestinal tract, the uterus, and the gallbladder. Pargeverine showed a dual mechanism of action, it binds to muscarinic and calcium receptors that can be related to its antispasmodic activity. The clinical trial has shown that pargeverine was an effective drug in the treatment of moderate to severe colic pain of biliary origin. In addition, its efficacy and tolerability were determined in patients with moderate-to-severe acute intestinal colic pain. As a result, no differences in blood pressure or heart rate were found among treatments. The incidence of mouth dryness was significantly more frequent with the 20 mg and 30 mg doses of propinox than with the placebo or the 10 mg dose. Information about the current development of this drug is not available.

Bevirimat (3-O-(3',3'-dimethylsuccinyl) betulinic acid or MPC-4326 or PA-457) potently inhibits replication of both WT and drug-resistant HIV-1 isolates and demonstrate that the compound acts by disrupting a late step in Gag processing involving conversion of the capsid precursor (p25) to mature capsid protein (p24). Bevirimat inhibits replication of both wild-type and drug-resistant HIV-1 isolates in vitro, achieving similar 50% inhibitory concentration values with both categories. Serial drug passage studies have identified six single amino acid substitutions that independently confer bevirimat resistance. These resistance mutations occur at or near the CA-SP1 cleavage site, which is not a known target for resistance to other antiretroviral drugs. Bevirimat has been in phase 2 trial for the treatment of HIV infections. Bevirimat has demonstrated a consistent pharmacokinetic profile in healthy volunteers and HIV-infected patients. The demonstration of an antiviral effect following a single oral dose of bevirimat validates maturation inhibition as a potential target for antiretroviral therapeutics in humans.

Talaglumetad (also known as LY-544344) is a bicyclohexane derivative patented by Eli Lilly and Company as modulators of metabotropic glutamate receptor. Talaglumetad acts as a prodrug of Eglumegad, a selective agonist of metabotropic glutamate receptors (mGluR2/3) and metabolized to release active compound by both human jejunal homogenates and rat liver homogenates. In experiments on mice, Talaglumetad was found to be as effective as diazepam for treating anxiety symptoms in several standard tests, but without producing any of the negative side effects of diazepam such as sedation and memory impairment.

Tezampanel, also known as LY 293558 and NGX-424, is a drug originally developed by Eli Lilly, which is a competitive antagonist of the AMPA and kainate subtypes of the ionotropic glutamate receptor family. Tezampanel was in phase II clinical trial for treatment migraine, but this study was discontinued. Also this drug has several others potential pharmacological actions, one of them is anxiety disorders

Deleobuvir is a drug for the treatment of Hepatitis C, developed by Boehringer Ingelheim. Deleobuvir is a non-nucleoside HCV NS5B polymerase inhibitor that reversibly and noncovalently binds to the thumb pocket 1. It has shown rapid and strong antiviral activity when administered in combination with peginterferon-a2a and ribavirin. In 2014 Boehringer Ingelheim decided to halt further development of deleobuvir because preliminary analysis of phase 3 clinical trials indicated a low efficacy of the drug.

Naronapride (ATI-7505), an orally administered, cisapride analogue and serotonin4 (5HT4) receptor agonist, is being developed by Renexxion for the treatment of multiple gastrointestinal disorders. Sinovant is initially developing naronapride for the treatment of irritable bowel syndrome – constipation (IBS-C), a disease that affects millions of Chinese patients and for which few effective treatment options are available. Naronapride has been evaluated in over 900 subjects in multiple randomized controlled clinical studies and has demonstrated promising results in patients with gastroesophageal reflux disease (GERD), erosive esophagitis (EE), and chronic idiopathic constipation (CIC). Naronapride’s low systemic absorption and high specificity for 5HT4 and D2 receptors is thought to improve its safety and tolerability profile relative to other members of the class.

Rosaprostol is an antiulcer drug. This compound acts on the mucosal barrier in the stomach, preventing a drop in pH. More specifically, rosaprostol exhibits gastric antisecretory activity and cytoprotective action. Importantly, it does not have the undesired side effects (such as diarrhea and uterine stimulation) of other prostanoids. Rosaprostol was found to antagonize gastric acid output induced by NSAID administration and to prevent and treat the digestive disorders that resulted from taking NSAIDs. Furthermore, symptoms in patients with gastritis disappeared after administration of rosaprostol, and the drug was well-tolerated. Positive effects of rosaprostol were also reported in patients with duodenal ulcer. Several stereoisomers of rosaprostol have been synthesized.

SP-2086 H3PO4 (Retagliptin Phosphate), tetrahydro-imidazo[1,5-a] pyrazine derivative, is a competitive DPP-4 inhibitor innovated in China under development by Jiangsu Hengrui Medicine for the treatment of Type 2 diabetes. In completed phase II trials, retagliptin monotherapy or in combination with metformin significantly decreased the HbA1c level in type 2 diabetic patients. Two phase III trials for retagliptin monotherapy aCnd in combination with metformin, respectively, were ongoing in China. Jiangsu Hengrui Medicine withdrew its application from the Chinese FDA in April 2016 but is expected to refile the application.