Australian headquartered pharmaceutical giant, SUDA Pharmaceuticals Ltd (ASX: SUD) is an oro-mucosal drug delivery leader, engaged in the reformulation of existing medications into oral sprays. The company aims to boost the lifestyle and health of the people worldwide by offering novel, innovative, high-grade, oro-mucosal spray pharmaceutical products to support in the treatment of several health conditions while sustaining steady growth and investment value for its shareholders.
SUDAâs OroMistÂ® Technology
SUDA is reformulating the existing billion-dollar drugs for oral delivery by using its unique platform technology, OroMistÂ®. The companyâs proprietary technology has the potential to deliver a wide range of drug classes via gums, tongue, cheeks or floor of the mouth. Also, the technology is compatible with, and patented for, use in either aerosol (propellant-driven) or pump (air-activated) spray systems, and can be delivered in either unit or multi-dose containers contingent on the marketing requirements and medical need for each product.
SUDAâs oral sprays have increased the bioavailability of administered medications to up to 95 per cent, relative to pills, tablets or capsules with less than 25% bioavailability.
Why Oro-Mucosal Drug Delivery?
According to SUDA, the oral route is perhaps one of the most preferred and studied one by patients and clinicians among the various routes of drug delivery. Around 70 per cent of the drugs are delivered orally, primarily in capsule or tablet form. However, there are multiple disadvantages connected to solid-oral administration, including:
- Hepatic first-pass metabolism.
- Acidic and enzymatic degradation within the GI (Gastrointestinal) tract.
- Relatively lengthy onset time.
- Intensification of erratic absorption patterns.
- Requires patientsâ consciousness.
- Needs access to drinking water.
- Creates problem in patients with swallowing difficulties.
SUDAâs OroMistÂ® technology overcomes these disadvantages by modifying the drug delivery, allowing the drug to be directly absorbed into the blood stream via the oral mucosa. As per the company, the oral cavity is an attractive place for the delivery of drugs, with the oro-mucosal membrane being easily accessible to carers and/or patients. Also, the high vascularisation can stimulate a faster onset of action and can avoid or lower the hepatic and intestinal degradation processes.
Advantages of SUDAâs Oro-Mucosal Spray Delivery
SUDA oro-mucosal drug delivery is one of the most efficient ways of administering a drug, that offers the following advantages:
It has been observed in clinical tests that SUDAâs oral sprays outperform the tablet form of administered medications in various diseases. Let us take a quick look at the clinical test results of some of these oral sprays below:
Oral Sprays Resulting in Enhanced Bioavailability
17-? Estradiol OroMistÂ® vs EstraceÂ® Tablet for Post-Menopausal HRT
Estradiol OroMistÂ® achieved estradiol blood levels faster than EstraceÂ® tablet, with oral spray delivering 76 times more drug in the blood stream than the tablet. The AUC was ten times higher for Estradiol OroMistÂ® in comparison to the EstraceÂ® tablet in the clinical tests. Also, the Tmax for EstraceÂ® tablet was greater (8.3 hours) than the Tmax for Estradiol OroMistÂ® (42 minutes).
Clemastine Fumarate 2.7mg OroMistÂ® vs TavistÂ® Tablet for Allergic Conditions
Clemastine Fumarate 2.7mg OroMistÂ® blood levels were three times higher when compared to TavistÂ® 2.7mg tablet, and therapeutic levels were reached in 5 to 7 minutes with OroMistÂ® vs 25 to 30 minutes for the tablet. The rapid absorption of the drug via OroMistÂ® resulted in a faster onset of action. There were no greater sedating effects observed with the oral spray than the tablet.
Loratadine OroMistÂ® (SUD-011) vs ClaritinÂ® Tablet for Allergic Condition
Loratadine OroMistÂ® (SUD-011) 2.5mg and 5mg achieved therapeutic plasma levels earlier and maintained it for a longer time than ClaritinÂ® 10mg tablet using less API.
Oral Sprays Resulting in Linear Dose Response
Sildenafil OroMistÂ® (SUD-003) vs ViagraÂ® 25mg Tablet for ED
Sildenafil OroMistÂ® (SUD-003) dose adjusted 10, 20 and 30mg PK curves confirmed that OroMistÂ® provides a linear dose response. SUD-003 is a first-in-class oral spray formulation of Sildenafil used for the treatment of Erectile Dysfunction or ED.
Oral Sprays Resulting in Bioequivalence with Enhanced Properties
Ondansetron OroMistÂ® (SUD-002) vs ZofranÂ® Tablet for CINV/PONV
Ondansetron 8mg OroMistÂ® (SUD-002) was found to be bioequivalent to ZofranÂ® 8mg tablet with the advantage that nauseous and vomiting patients are not required to swallow. SUD-002 is a first-in-class oral spray formulation of Ondansetron used to treat post-operative nausea and vomiting (PONV) and chemotherapy-induced nausea and vomiting (CINV).
ZolpiMistTM OroMistÂ® vs AmbienÂ® Tablet for Insomnia
SUDAâs USFDA approved drug, ZolpiMistTM resulted in a faster onset of action in comparison to AmbienÂ® Tablet in clinical tests. Also, ZolpiMistTM demonstrated a significant faster onset of sedation with less API relative to AmbienÂ®.
In the latest scientific report, ZolpiMistTM was reported to deliver more rapid sleep onset (based on efficacy parameters and pharmacokinetics) in comparison to the tablet form of Zolpidem in patients looking for short-term treatment for insomnia. The below figure summarises the latest clinical study results of ZolpiMistTM that recently got published in Pharmacy and Pharmacology journal:
SUDAâs unique and proprietary OroMistÂ® technology has the potential result in faster onset, potentially smaller doses and safer delivery for ex-blockbuster drugs. The companyâs OroMistÂ® technology has enabled it to attain key development goals in a shorter time frame.
On 12th September 2019, SUDAâs stock settled the dayâs trading session at AUD 0.003 on ASX with around 3.56 billion outstanding shares.
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