Fluorfenidine F-18 is a radionucleotide used in positron emission tomography (PET) imaging procedures.

D-Methyldopa is an inactive isomer of methyldopa. It is known, that only L-isomer has the ability to inhibit dopa decarboxylase and possesses the antihypertensive activity in man. Moreover, about twice the dose of the racemate (DL-form of methyldopa) is required for the equal antihypertensive effect.

Kirax Corporation (formerly Tigris Pharmaceuticals) was developing AFP-464, a lysyl prodrug of aminoflavone for the treatment of solid tumours. AFP-464 is an antitumor agent which was in phase II clinical trials, acts against estrogen-positive breast cancer (ER+). AFP-464, has a unique mechanism of action by activating aryl hydrocarbon receptor (AhR) signaling pathway. Preclinical studies into AFP-464's mechanism of action have shown that AFP-464 is converted to metabolites, which bind covalently to DNA, resulting in p53 activation and apoptosis. AFP-464 has shown a unique pattern of growth inhibitory activity in the NCI's 60 tumor cell line screen, with breast, ovarian, lung and renal tumor cell lines exhibiting particular sensitivity to the compound. In vivo anti-tumor activity of AFP-464 has been demonstrated in several xenograft studies in mice bearing renal and breast cancer. Preclinical studies have shown that tumors (breast, ovarian, pancreatic and renal) with AhR localized in the cytoplasm are very sensitive to AFP-464 while those with AhR localized in the nucleus are more resistant. AFP-464 was being studied by Tigris Pharmaceuticals in a randomized Phase 2 clinical trial with ER-positive breast cancer patients. However, AFP-464 development was discontinued.

Linarotene is arotinoid derivative. It is an antikeratolytic agent. Linarotene had been in preclinical phase by Ortho Pharmaceutical (Johnson & Johnson) and BASF Pharma for the treatment of skin disorders. However, this research was discontinued.

AZD-8330 is a potent, selective, orally active MEK inhibitor that blocks signal transduction pathways implicated in cancer cell proliferation and survival. AZD-8330 has shown tumor suppressive activity in multiple preclinical models of human cancer including melanoma, pancreatic, colon, lung, and breast cancers. AZD-8330 specifically inhibits mitogen-activated protein kinase kinase 1 (MEK or MAP/ERK kinase1), resulting in inhibition of growth factor-mediated cell signaling and tumor cell proliferation. MEK is a key component of the RAS/RAF/MEK/ERK signaling pathway that regulates cell growth; constitutive activation of this pathway has been implicated in many cancers. AZD-8330 had been in phase I clinical trials by AstraZeneca for the treatment of malignancies. However, this research has been discontinued.

Talopram (Lu 3-010) is a selective inhibitor norepinephrine transporter belonging to the antidepressants of the thymoleptic group.