Company: PTHS
Filing Date: 2025-05-27
Form Type: DEFM14C
Source: 0001140361-25-020509
Chunk: 344

Company: Pelthos Therapeutics Inc.
Filing Date: 2025-05-27
Form: DEFM14C
Chunk 344
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 marketed under additional brand names including Voltaren and Cataflam in its pill form. A single Phase 1 trial of the Diclofenac Spray Formulation was completed in 24 healthy volunteers wherein a single dose of 50mg diclofenac-potassium was compared to 25 mg of Diclofenac Spray Formulation. In this trial, the blood plasma concentrations of Diclofenac rose more quickly with the Diclofenac Spray Formulation than with the diclofenac administered orally by approximately 15 minutes. This suggests that the Diclofenac Spray Formulation may have a faster onset of analgesia; however, additional trials may be needed to confirm this effect. Additionally, the initial pharmacokinetic study demonstrated that a 25mg dose of Diclofenac Spray Formulation resulted in lower systemic exposure to Diclofenac than the oral dose of 50mg diclofenac-potassium which means that an additional Phase I pharmacokinetic study exploring additional higher doses of the sublingual diclofenac spray will likely be necessary to determine the appropriate dose.

Rizatriptan, whose brand name is Maxalt, is used for the acute treatment of migraines as a pill. By a number of clinical measures it is thought to be superior to Sumatriptan. Both Rizatriptan and Sumatriptan belong to a family of tryptamine-based medications named “triptans” that work as serotonin 1A receptor (or 5-HT1A-receptor) agonists and are indicated for the treatment of migraine. An intranasal spray formulation of Rizatriptan (the “Rizatriptan Spray Formulation”) may potentially have a faster onset of action than an oral form and may be easier to tolerate than swallowing a pill when patients are experiencing nausea as a result of the migraine headache. According to a study that was reported in 2001, Rizatriptan has a higher bioavailability and a more rapid onset of action which may be responsible for better results in resolving migraines as well as better results in patients reporting that they are “pain free” after 2 hours. Both Sumatriptan and Rizatriptan are competitors for the same indication, though neither are widely marketed because they are generic drugs.

Ondansetron is an anti-emetic that is available in oral and intravenous form. An Ondansetron sublingual spray formulation (