Phase 2a, Double-Blind, Randomized Adaptive Design, Placebo-Controlled, Parallel Group Study to Evaluate the Safety, Tolerability, Efficacy, PK and Biomarkers With Oral Colon Delivery PL8177 in Adult Subjects With Active Ulcerative Colitis

The purpose of this study is to compare PL8177 (a melanocortin receptor agonist) to placebo (in a 3:1 ratio-meaning that for every 3 people that get the active drug, one will receive placebo). The study treatment will be for 8 weeks. The study will measure safety and the body's ability to handle PL8177 and look at the improvement and healing of the intestine after 8 weeks of treatment. The study will include adult males and nonpregnant, nonlactating females with acute Ulcerative Colitis (UC).

开始日期2022-09-15

申办/合作机构

Palatin Technologies, Inc.

EUCTR2019-003197-24-GB / Not yet recruiting临床2期

A Phase 2, Randomized, 3-Arm Parallel Group, Placebo and Active-Controlled Study of the Effect of PL8177 Administered via Subcutaneous Injection in Healthy Male Volunteers on Inflammatory Onset and Resolution - SCION

开始日期2020-03-16

申办/合作机构

Palatin Technologies, Inc.

NL-OMON46068 / CompletedN/A

A Phase 0, Open-label Study to Evaluate the Release and Absorption of the Polymer-bound Form of [14C]-PL8177 in the Distal Gastrointestinal Tract Following a Single Oral Dose in Healthy Male Subjects - PL8177 Microtracer study

开始日期2018-09-20

申办/合作机构

Palatin Technologies, Inc.

100 项与 PL-8177 相关的临床结果

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100 项与 PL-8177 相关的转化医学

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100 项与 PL-8177 相关的专利（医药）

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项与 PL-8177 相关的文献（医药）

2022-05-01·Experimental eye research3区 · 医学

Melanocortin receptor agonists suppress experimental autoimmune uveitis

3区 · 医学

Article

作者: Dawit, Kaleb ; Taylor, Andrew W ; Ng, Tat Fong

The melanocortin system plays an essential role in the regulation of immune activity. The anti-inflammatory microenvironment of the eye is dependent on the expression of the melanocortin-neuropeptide alpha-melanocyte stimulating hormone (α-MSH). In addition, the melanocortin system may have a role in retinal development and retinal cell survival under conditions of retinal degeneration. We have found that treating experimental autoimmune uveitis (EAU) with α-MSH suppresses retinal inflammation. Also, this augmentation of the melanocortin system promotes immune tolerance and protection of the retinal structure. The benefit of α-MSH-therapy appears to be dependent on different melanocortin receptors. Therefore, we treated EAU mice with α-MSH-analogs with different melanocortin-receptor targets. This approach demonstrated which melanocortin-receptors suppress inflammation, preserve retinal structure, and induce immune tolerance in uveitis. At the chronic stage of EAU the mice were injected twice 1 day apart with 50 μg of α-MSH or an α-MSH-analog. The α-MSH-analogs were a pan-agonist PL8331, PL8177 (potent MC1r-only agonist), PL5000 (a pan-agonist with no MC5r functional activity), MT-II (same as PL5000) and PG901 (MC5r agonist, but also an antagonist to MC3r, and MC4r). Clinical EAU scores were measured until resolution in the α-MSH-treated mice, when the eyes were collected for histology, and spleen cells collected for retinal-antigen-stimulated cytokine production. Significant suppression of EAU was seen with α-MSH or PL8331 treatment. This was accompanied with significant preservation of retinal structure. A similar effect was seen in EAU-mice that were treated with PL8177, except the suppression of EAU was temporary. In EAU mice treated with PL5000, MTII, or PG901, there was no suppression of EAU with a significant loss in whole retina and outer-nuclear layer thickness. There was significant suppression of IL-17 with induction of IL-10 by retinal-antigen stimulated spleen T cells from EAU mice treated with α-MSH, PL8331, PL8177, or PL5000, but not from EAU mice treated with MT-II, or PG901. Our previous studies show the melanocortin system's importance in maintaining ocular immune privilege and that α-MSH-treatment accelerates recovery and induces retinal-antigen-specific regulatory immunity in EAU. Our current results show that this activity is centered around MC1r and MC5r. In addition, the results suggest that a therapeutic potential to target MC1r and MC5r together to suppress uveitis induces regulatory immunity with potentially maintaining a normal retinal structure.

2021-12-01·Drugs in R&D4区 · 医学

Pharmacokinetics of the Melanocortin Type 1 Receptor Agonist PL8177 After Subcutaneous Administration

4区 · 医学

ArticleOA

作者: Pesco Koplowitz, Luana ; Barnett, Keith ; Makhlina, Marie ; Yang, Wei H ; Koplowitz, Barry ; Jordan, Robert ; Spana, Carl ; Dodd, John

BACKGROUND AND OBJECTIVE:

PL8177 is a selective melanocortin 1 receptor agonist in development for the treatment of various immunologic and inflammatory conditions. Here we describe the pharmacokinetics of PL8177 after subcutaneous (sc) delivery in animals and humans.

METHODS:

Mice, rats, and dogs were administered sc PL8177 at single doses of 1.0 and 3.0 mg/kg (mice); 1.0, 5.0, and 25.0 mg/kg/day (rats); or 1.5, 8.0, and 40.0 mg/day (dogs). Blood was collected over 24 h (mice) or 28 days (rats and dogs). Safety and pharmacokinetics of single and multiple sc doses were also examined in human volunteers. Two dose levels were tested in two dosing cohorts of 1.0 and 3.0 mg/day for 7 days. Blood samples were collected through Day 1 and on Days 2 to 6 at peak and trough times based on analysis of the first two single-dose cohorts.

RESULTS:

In mice, 3 mg/kg PL8177 resulted in an area under the plasma concentration-time curve from 0 to infinity (AUC_∞) of 1727 ng·h/mL, a maximum plasma concentration (C_max) of 2440 ng/mL, an elimination half-life (t_½) of 0.5 h, and a time to maximum concentration (t_max) of 0.25 h. Results for the 1-mg/kg dose were generally proportional. In rats, mean t_max values were independent of dose and ranged from 0.25 to 1.0 h for single and multiple dosing. C_max values ranged from 516 to 695 ng/mL (1-mg/kg dose) and from 666 to 1180 ng/mL (25-mg/kg dose). In dogs, mean t_max values ranged from 0.4 to 1.3 h for single and multiple dosing. Values for t_max decreased with increasing dose and mean plasma C_max increased less than dose proportionally (96-129 ng·h/mL [1.5 mg], 275-615 ng·h/mL [8.0 mg], and 633-1280 ng·h/mL [40.0 mg]). In humans, PL8177 was observed in the plasma within 15 min after a single dose and persisted for up to 48 h at higher doses. The t_max was 30-45 min (single dose) and 15-45 min (multiple doses). In multiple-dose studies, maximum steady-state plasma concentration (C_max,ss) and AUC_∞ increased with dose. Geometric mean C_max,ss values were 20.1 ng/mL (1.0 mg) and 57.2 ng/mL (3.0 mg). AUC_∞ values were 54.3 ng·h/mL (1.0 mg) and 199 ng·h/mL (3.0 mg). Unchanged PL8177 excreted in the urine was ≤ 1%, and accumulation was minimal.

CONCLUSION:

PL8177 administration resulted in a consistent pharmacokinetic profile. The measured exposure levels resulted in pharmacologically active PL8177 concentrations at the targeted MC1R. Rapid absorption was seen in healthy volunteers, and multiple-dose administration over 7 days resulted in pharmacokinetic characteristics similar to those observed after single-dose administration. Results support the continued development of PL8177 to treat immunologic and inflammatory conditions.

Frontiers in pharmacology2区 · 医学

Probing the Role of Melanocortin Type 1 Receptor Agonists in Diverse Immunological Diseases

2区 · 医学

ArticleOA

作者: Dodd, John ; Spana, Carl ; Yang, Wei ; Makhlina, Marie ; Taylor, Andrew W ; Yee, David G

Background: The melanocortin α-melanocyte stimulating hormone (α-MSH), an endogenous peptide with high affinity for the melanocortin 1 receptor (MC1r), has demonstrated prevention and reversal of intestinal and ocular inflammation in animal models. Preclinical studies were performed to determine whether two MC1r receptor agonists, PL-8177 and PL-8331, exhibit actions and efficacy similar to α-MSH in preventing and reversing intestinal and ocular inflammation. Methods: Both PL-8177 and PL-8331 were assessed in a Eurofins LeadProfilingScreen selectivity panel including 72 in vitro assays. PL-8177 and PL-8331 were evaluated in an in vitro assay using human whole blood stimulated by lipopolysaccharide to determine inhibition of tumor necrosis factor alpha (TNF-α); for comparison, adrenocorticotropic hormone (ACTH) and α-MSH were used as positive controls. PL-8177, dosed at 0.5, 1.5, and 5.0 μg, was assessed in a cannulated rat model of dinitrobenzene sulfonic acid (DNBS)-induced bowel inflammation versus vehicle and oral sulfasalazine. PL-8177 was also dosed at 0.3 mg/kg/mouse injected intraperitoneally versus untreated controls and α-MSH treatment in mice with experimental autoimmune uveitis (EAU). PL-8331 at 3 doses, 3 times daily, was evaluated in a murine model of scopolamine-induced dry eye disease (SiccaSystem^TM model), versus twice-daily Restasis^® and Xiidra^®. Results: Both PL-8177 and PL-8331 demonstrated no significant activity at the 1 μm concentration in any of the 72 in vitro assays. PL-8177 and PL-8331 inhibited lipopolysaccharide-induced TNF-α to a similar degree as ACTH and α-MSH. In the DNBS rat model of bowel inflammation, PL-8177 was significantly superior to untreated controls at all 3 doses (P < 0.05) in reducing bowel inflammation parameters, with effects similar to sulfasalazine. In the murine EAU model, PL-8177 significantly reduced retinal inflammation scores versus untreated controls (P = 0.0001) over 3-5 weeks, and to a similar degree as α-MSH. In the murine scopolamine-induced model of dry eye disease, PL-8331 reduced corneal fluorescein staining scores at all doses, significantly (P = 0.02) for the highest dose (1 × 10^-5 mg⋅mL^-1), and similarly to Restasis^®; Xiidra^® demonstrated no effect. Conclusion: The MC1r receptor agonists PL-8177 and PL-8331 exhibited actions similar to those of α-MSH in preventing and reversing intestinal and ocular inflammation in preclinical disease models.

项与 PL-8177 相关的新闻（医药）

2024-11-14

·PRNewswire

Palatin Reports First Quarter Fiscal Year 2025 Operating/Financial Results

Obesity programs: Core focus on obesity includes exploratory co-administration BMT-801 study and two novel development drug candidates Phase 2 BMT-801 clinical study with MC4R agonist bremelanotide plus GLP-1/GIP dual agonist tirzepatide Patient enrollment completed October 2024 Topline results expected 1Q calendar year 2025 Multiple clinical trials targeted in calendar year 2025 with long-acting MC4R peptide and oral small molecule compounds General obesity, weight loss management, and rare MC4R pathway diseases like hypothalamic obesity Dry eye disease (DED) and other ocular programs, ulcerative colitis (UC), male sexual dysfunction, and diabetic nephropathy programs: Investment bank engaged as a financial advisor to explore strategic options for non-obesity programs Teleconference and Webcast to be held on November 14, 2024, at 11:00 AM ET CRANBURY, N.J., Nov. 14, 2024 /PRNewswire/ -- Palatin Technologies, Inc. (NYSE American: PTN), a biopharmaceutical company developing first-in-class medicines based on molecules that modulate the activity of the melanocortin receptor system, today announced operating and financial results for its fiscal first quarter ended September 30, 2024. "With the establishment of pharmacotherapy as the primary treatment for the millions of obese patients and the high discontinuation rate (67%) of obese patients on current therapies resulting from side effects and a weight-loss plateau effect in the first year, we believe our MC4R long-acting peptide and oral small molecule compounds could address the unmet needs and challenges of these treatments," said Carl Spana, Ph.D., President and Chief Executive Officer of Palatin. "We look forward to releasing topline data results from our Phase 2 BMT-801 clinical study of our melanocortin-4 receptor (MC4R) agonist, bremelanotide, plus a glucagon like peptide-1/gastric inhibitory polypeptide (GLP-1/GIP) dual agonist, tirzepatide, in the first quarter of calendar year 2025. Furthermore, we are excited to advance our obesity programs and start multiple clinical trials in 2025 aimed at treating general obesity, weight loss management, and rare MC4R pathway diseases like hypothalamic obesity." Dr. Spana noted, "We believe focusing on our core and most valuable programs in obesity is the right course of action for the long-term success of Palatin. We have retained an investment bank to conduct, explore, and evaluate strategic options for our non-obesity programs. At this stage, there has been significant interest in and ongoing discussions for our Phase 3 DED program, early-stage glaucoma and retina development programs, and our Phase 2 UC program from multiple parties." The MC4R pathway plays a key role in the regulation of energy storage and food intake. The novel MC4R selective agonists being developed by Palatin could potentially play a vital role in treating obesity as monotherapy and/or combination therapy. Program Updates and Anticipated Milestones Obesity Programs: Phase 2 BMT-801 clinical study for the co-administration of melanocortin agonist bremelanotide (MC4R) with tirzepatide (GLP-1/GIP dual agonist) in obese patients: Patient enrollment completed October 2024 The study enrolled approximately twice the target of 60 patients at four sites in the U.S, primarily due to strong patient demand and efficiency of the clinical trial sites Primary endpoint: Demonstrate the safety and increased efficacy of co-administration of bremelanotide with tirzepatide on reducing body weight Patients will be treated with tirzepatide-only for four weeks, have eligibility confirmed, then randomized to one of four treatment arms Patients will undergo multiple assessments of safety and efficacy to help profile the effectiveness of bremelanotide in treating general obesity as a stand-alone treatment or in conjunction with GLP-1 therapy Topline results expected in 1Q calendar year 2025 Additional trial information, including inclusion and exclusion criteria, can be found at via the identifier NCT06565611 Presented a poster titled "Structural Modification Allows the Removal of Melanocortin Receptor 1 Agonism From Melanocortin Receptor 4 Agonists," at the 19th Annual Peptide Therapeutics Symposium in October 2024: MC4R selectivity significantly reduces potential for skin pigmentation Presented data on novel melanocortin-4 receptor selective oral small molecule PL7737 obesity program at ObesityWeek® 2024 in November 2024: Oral PL7737 significantly decreased food intake and body weight Novel MC4R selective long-acting peptide and oral small molecule agonists: Potential for monotherapy or combination (with a GLP-1 agonist) therapy Initiation of investigational new drug (IND) enabling activities expected to commence 1Q calendar year 2025 Filing of INDs anticipated 2H of calendar year 2025 Commencement of Phase 1 clinical studies targeted for 4Q of calendar year 2025 Ocular Programs (melanocortin receptor agonists): Phase 3 PL9643 clinical program for the treatment of dry eye disease (DED): MELODY-1 pivotal study successfully completed Statistical significance (p<0.025) met for co-primary symptom endpoint of pain Statistical significance (p<0.05) met for 7 of 11 secondary symptom endpoints at the 12-week treatment period Rapid onset of efficacy in multiple symptom endpoints at 2 weeks and continued improvement to 12 weeks with statistical significance (p<0.05) met Statistical significance (p<0.05) met for multiple sign endpoints, including 4 fluorescein staining endpoints at the 2-week treatment period Corneal fluorescein staining is used to measure corneal epithelial damage and reductions in corneal fluorescein staining with treatments like PL9643, indicating improvement in corneal health Excellent safety and tolerability profile MELODY-2 & MELODY-3 clinical studies Concluded positive Type C meeting with the FDA and reached agreement on sign and symptom endpoints for remaining two Phase 3 pivotal trial protocols Subject to funding, patient enrollment ready to begin 1Q calendar year 2025 Potential collaboration and funding discussions ongoing Glaucoma (PL9588) and retina (PL9654) development programs Development candidates ready for IND-enabling toxicology studies Glaucoma drug candidate shows lack of adverse events and potential for neuroprotection as differentiating factors Retina drug candidate provides potential differentiating factors Male Sexual Dysfunction Program: Historical data show that approximately 35% of men with ED have an inadequate response to PDE5i treatments, which represents a large underserved market Palatin previously conducted clinical trials showing the synergistic effects of combining bremelanotide with a PDE5i as a treatment for ED Palatin initiated a clinical development program for the evaluation of bremelanotide co-formulated with a PDE5 inhibitor (PDE5i) for the treatment of ED in patients that do not respond to PDE5i monotherapy: Subject to funding, pharmacokinetics (PK) study ready to start 1Q of calendar year 2025 Patient recruitment in Phase 2/3 clinical study could start 2H calendar year 2025 Ulcerative Colitis Program (melanocortin receptor agonist): Phase 2 PL8177 oral formulation for the treatment of ulcerative colitis (UC): Enrollment near complete / interim analysis expected 1Q calendar year 2025 Additional trial information, including inclusion and exclusion criteria, can be found at via the identifier NCT05466890 Potential collaboration and funding discussions ongoing Diabetic Nephropathy Program – The BREAKOUT Study (melanocortin receptor agonist): Phase 2 BREAKOUT study of bremelanotide (BMT 701) study in patients with diabetic kidney disease: Topline results expected 4Q calendar year 2024 Additional trial information, including inclusion and exclusion criteria, can be found at via the identifier NCT05709444 Vyleesi® (bremelanotide injection) for Hypoactive Sexual Desire Disorder: Asset sale to Cosette Pharmaceuticals for up to $171 million closed in December 2023: Potential milestones of up to $159 million based on annual net sales ranging from $15 million to $200 million Palatin retains rights to and use of bremelanotide for obesity and male ED Received $2.5 million deferred upfront payment in November 2024 Fiscal First Quarter Ended September 30, 2024 Financial Results Revenue Total revenue consists of gross product sales of Vyleesi, net of expenses, allowances and accruals, and license and contract revenue. Pursuant to the completion of the sale of Vyleesi's worldwide rights for female sexual dysfunction to Cosette Pharmaceuticals for up to $171 million in December 2023, Palatin did not record any product sales to pharmacy distributors, for the first quarter ended September 30, 2024. For the first quarter ended September 30, 2023, gross product sales were $4.6 million and net product revenue was $2.1 million. Operating Expenses Total operating expenses were $7.8 million for the first quarter ended September 30, 2024, compared to $8.2 million for the comparable quarter last year. The decrease was mainly the result of the elimination of selling expenses related to Vyleesi offset by greater spending on our MCR programs. Other (Expense) / Income Total other (expense) / income, net, consists mainly of foreign currency transaction (loss) and gains and the change in fair value of warrant liabilities, which Palatin had recorded as a liability on the consolidated financial statements, including the revisions of certain prior period amounts to correct a misstatement with respect to classifying warrants as equity instead of a liability. The statement of operations was adjusted each quarter through fiscal year ended June 30, 2024 to reflect changes in the fair value of these warrants. For the quarter ended September 30, 2023, Palatin recorded a fair value adjustment gain of $0.7 million. Cash Flows Palatin's net cash used in operations for the quarter ended September 30, 2024, was $7.0 million, compared to net cash used in operations of $5.9 million for the same period in 2023. The increase in net cash used in operations is mainly due to the increase in the net loss during the period and secondarily to working capital changes. Net Loss Palatin's net loss for the quarter ended September 30, 2024, was $7.8 million, or $(0.39) per basic and diluted common share, compared to a net loss of $5.2 million, or $(0.43) per basic and diluted common share, for the same period in 2023. The increase in net loss for the quarter ended September 30, 2024, over the quarter ended September 30, 2023, was mainly due to the elimination of Vyleesi net product revenue, offset by the elimination of Vyleesi selling expenses and the recognition of the change in fair value of warrant liabilities for the quarter ended September 30, 2023. Cash Position As of September 30, 2024, Palatin's cash and cash equivalents were $2.4 million, compared to cash and cash equivalents of $9.5 million as of June 30, 2024. Palatin received a scheduled $2.5 million deferred upfront payment in November 2024 related to the sale of Vyleesi to Cosette Pharmaceuticals. The Company is actively engaged with multiple potential funding sources for future operating cash needs. Conference Call / Webcast Palatin will host a conference call and audio webcast on November 14, 2024, at 11:00 a.m. Eastern Time to discuss the results of operations in greater detail and provide an update on corporate developments. Individuals interested in listening to the conference call live can dial 1-888-506-0062 (US) or 1-973-528-0011 (International), conference ID 176159. The audio webcast and replay can be accessed by logging on to the "Investor-Webcasts" section of Palatin's website at . A telephone and audio webcast replay will be available one hour after the completion of the call. To access the telephone reply, dial 1-877-481-4010 (US) or 1-919-882-2331 (International), passcode 51641. The webcast and telephone replay will be available through November 28, 2024. About Melanocortin Receptor Agonists The melanocortin receptor ("MCR") system has effects on inflammation, immune system responses, metabolism, food intake, and sexual function. There are five melanocortin receptors, MC1R through MC5R. Modulation of these receptors, through use of receptor-specific agonists, which activate receptor function, or receptor-specific antagonists, which block receptor function, can have medically significant pharmacological effects. Many tissues and immune cells located in the eye (and other places, for example the gut and kidney) express melanocortin receptors, empowering our opportunity to directly activate natural pathways to resolve disease inflammation. About Palatin Palatin is a biopharmaceutical company developing first-in-class medicines based on molecules that modulate the activity of the melanocortin receptor systems, with targeted, receptor-specific product candidates for the treatment of diseases with significant unmet medical need and commercial potential. Palatin's strategy is to develop products and then form marketing collaborations with industry leaders to maximize their commercial potential. For additional information regarding Palatin, please visit Palatin's website at and follow Palatin on Twitter at @PalatinTech. Forward-looking Statements Statements in this press release that are not historical facts, including statements about future expectations of Palatin Technologies, Inc., such as statements about Palatin products in development, clinical trial results, potential actions by regulatory agencies including the FDA, regulatory plans, development programs, proposed indications for product candidates, and market potential for product candidates are "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934 and as that term is defined in the Private Securities Litigation Reform Act of 1995. Palatin intends that such forward-looking statements be subject to the safe harbors created thereby. Such forward-looking statements involve known and unknown risks, uncertainties and other factors that could cause Palatin's actual results to be materially different from its historical results or from any results expressed or implied by such forward-looking statements. Palatin's actual results may differ materially from those discussed in the forward-looking statements for reasons including, but not limited to, results of clinical trials, regulatory actions by the FDA and other regulatory and the need for regulatory approvals, Palatin's ability to fund development of its technology and establish and successfully complete clinical trials, the length of time and cost required to complete clinical trials and submit applications for regulatory approvals, products developed by competing pharmaceutical, biopharmaceutical and biotechnology companies, commercial acceptance of Palatin's products, and other factors discussed in Palatin's periodic filings with the Securities and Exchange Commission. Palatin is not responsible for updating events that occur after the date of this press release. Palatin Technologies® is a registered trademark of Palatin Technologies, Inc. (Financial Statement Data Follows) SOURCE Palatin Technologies, Inc. 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临床结果临床2期财报临床3期临床1期

2024-09-09

·PRNewswire

Palatin Provides Update on Clinical Programs, Strategic Priorities, and Anticipated Milestones

Dry Eye Disease (DED): PL9643 MELODY-2 & MELODY-3 Phase 3 Pivotal Clinical Studies FDA Confirms Protocols and Endpoints Targeting Enrollment Start in 4Q Calendar Year 2024 Topline Results Anticipated 4Q Calendar Year 2025 Potential Collaboration/Funding Discussions Ongoing Obesity: Phase 2 Clinical Study with Melanocortin-4 Receptor (MC4R) Agonist + Glucagon Like Peptide-1 (GLP-1) Patient Dosing Commenced 3Q Calendar Year 2024 Topline Results Expected 1Q Calendar Year 2025 Male Sexual Dysfunction: Development and Clinical Program with Bremelanotide Co-Formulated with a PDE5i for the Treatment of Erectile Dysfunction (ED) in Patients That Do Not Respond to PDE5i Monotherapy Pharmacokinetics Study Expected to Start 1Q Calendar Year 2025 Patient Recruitment in Phase 3 Study Anticipated in 2H Calendar Year 2025 Ulcerative Colitis (UC): Oral PL8177 Phase 2 Clinical Study in Active UC Patients Interim Analysis Readout Expected in 4Q Calendar Year 2024 Topline Results Anticipated 1Q Calendar Year 2025 Potential Collaboration Discussions Ongoing CRANBURY, N.J. , Sept. 9, 2024 /PRNewswire/ -- Palatin Technologies, Inc. (NYSE American: PTN), a biopharmaceutical company developing first-in-class medicines based on molecules that modulate the activity of the melanocortin receptor system, today provided an update on its clinical programs, strategic priorities, and anticipated milestones. "We continue to execute on the clinical development front and expect several key milestones from multiple programs over the next twelve months," said Carl Spana, Ph.D., President and Chief Executive Officer of Palatin. "Patient dosing has commenced in our Phase 2 clinical study of an MC4R agonist plus a GLP-1 in obese patients. Our clinical program evaluating bremelanotide co-formulated with a PDE5i for the treatment of ED in patients who do not respond to PDE5i monotherapy is expected to begin in the first half of calendar year 2025. An interim analysis readout on our Phase 2 clinical trial of PL8177 in patients with UC is expected later this calendar year. Additionally, as a result of a positive Type C meeting with the FDA and agreement on PL9643 for DED Phase 3 trial protocols and endpoints, we anticipate the initiation of pivotal clinical studies MELODY-2 and MELODY-3 in the fourth quarter of this calendar year." Dr. Spana further commented, "We are focused on the continued development of melanocortin receptor system treatments for obesity and male sexual dysfunction. We are actively engaging in discussions with potential partners and companies that have the financial and operational resources to progress PL9643 for DED, our other ocular programs, and our ulcerative colitis program, through development, approval, and into commercialization. Program Updates and Anticipated Milestones Ocular Programs (melanocortin receptor agonists): Phase 3 PL9643 clinical program for the treatment of dry eye disease (DED): Potential collaboration/funding discussions ongoing MELODY-2 & MELODY-3 Phase 3 pivotal clinical studies Concluded a positive Type C meeting with the FDA and reached an agreement on sign and symptom endpoints on the remaining two Phase 3 pivotal trial protocols Targeting 4Q calendar year 2024 to begin patient enrollment Topline results anticipated 4Q calendar year 2025 Potential NDA submission 1H calendar year 2026 Successful Phase 3 MELODY-1 pivotal study successfully completed Statistical significance (p<0.025) met for co-primary symptom endpoint of pain Statistical significance (p,0.05) met for 7 of 11 secondary symptom endpoints at the 12-week treatment period Statistical significance (p<0.05) met for rapid onset of efficacy and multiple symptom endpoints, including the co-primary pain endpoint at the 2-week treatment period and continued to improve over the 12-week treatment period Statistical significance (p<0.05) met for multiple sign endpoints, including 4 fluorescein staining endpoints at the 2-week treatment period Corneal fluorescein staining is used to measure corneal epithelial damage and reductions in corneal fluorescein staining with treatments like PL9643 indicate improvement in corneal health Excellent safety and tolerability profile Obesity Program: Phase 2 clinical study for the co-administration of melanocortin agonist bremelanotide (MC4R) with tirzepatide (GLP-1) in obese patients for the treatment of obesity: Initiated 2Q of calendar year 2024 Patient dosing commenced 3Q calendar year 2024 Topline results expected 1H calendar year 2025 The study is designed to enroll up to 60 patients at four trial sites in the United States with the Primary endpoint of the trial to demonstrate the safety and increased efficacy of co-administration of bremelanotide with tirzepatide on reducing body weight Patients will be treated with tirzepatide-only for four weeks, have eligibility confirmed, then randomized to one of four treatment regimens Patients will undergo multiple assessments of safety and efficacy to help profile the effectiveness of bremelanotide in treating general obesity as a stand-alone treatment or in conjunction with GLP-1/GIP therapy Additional trial information, including inclusion and exclusion criteria, can be found at via the identifier NCT06565611 Novel MC4R selective long-acting agonist: Initiation of investigational new drug (IND) enabling activities expected 4Q of calendar year 2024 Filing of IND anticipated 2H of calendar year 2025 Male Sexual Dysfunction Program: Initiated a development and clinical program for the evaluation of bremelanotide co-formulated with PDE5 inhibitor (PDE5i), for the treatment of erectile dysfunction (ED) in patients that do not respond to PDE5i monotherapy: Pharmacokinetics study initiation expected to start 1Q of calendar year 2025 Patient recruitment in Phase 3 clinical study anticipated 2H calendar year 2025 Topline results targeted for 1H calendar year 2026 Approximately 35% of men with ED have an inadequate response to PDE5i treatments and represent a large underserved market Palatin previously conducted clinical trials showing the synergistic effects of combining bremelanotide with a PDE5i as a treatment for ED Ulcerative Colitis Program (melanocortin receptor agonist): Phase 2 PL8177 oral formulation for the treatment of ulcerative colitis (UC): Potential collaboration discussions ongoing Interim analysis expected in 4Q calendar year 2024 Topline results anticipated 1Q calendar year 2025 Additional trial information, including inclusion and exclusion criteria, can be found at via the identifier NCT05466890 Diabetic Nephropathy Program (melanocortin receptor agonist): Phase 2 bremelanotide BREAKOUT study (BMT 701) in patients with diabetic kidney disease: Topline results expected in the fourth quarter of calendar year 2024 Additional trial information, including inclusion and exclusion criteria, can be found at via the identifier NCT05709444 Vyleesi® (bremelanotide injection) / Hypoactive Sexual Desire Disorder: Asset sale to Cosette Pharmaceuticals for up to $171 million closed in December 2023: $12 million upfront, plus potential sales-based milestones of up to $159 million based on annual net sales ranging from $15 million to $200 million Palatin retained rights and use of bremelanotide for obesity and male erectile dysfunction indications About Melanocortin Receptor Agonists The melanocortin receptor ("MCR") system has effects on inflammation, immune system responses, metabolism, food intake, and sexual function. There are five melanocortin receptors, MC1R through MC5R. Modulation of these receptors, through use of receptor-specific agonists, which activate receptor function, or receptor-specific antagonists, which block receptor function, can have medically significant pharmacological effects. Many tissues and immune cells located in the eye (and other places, for example the gut and kidney) express melanocortin receptors, empowering our opportunity to directly activate natural pathways to resolve disease inflammation. About Palatin Palatin is a biopharmaceutical company developing first-in-class medicines based on molecules that modulate the activity of the melanocortin receptor systems, with targeted, receptor-specific product candidates for the treatment of diseases with significant unmet medical need and commercial potential. Palatin's strategy is to develop products and then form marketing collaborations with industry leaders to maximize their commercial potential. For additional information regarding Palatin, please visit Palatin's website at and follow Palatin on Twitter at @PalatinTech. Forward-looking Statements Statements in this press release that are not historical facts, including statements about future expectations of Palatin Technologies, Inc., such as statements about Palatin products in development, clinical trial results, potential actions by regulatory agencies including the FDA, regulatory plans, development programs, proposed indications for product candidates, and market potential for product candidates are "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934 and as that term is defined in the Private Securities Litigation Reform Act of 1995. Palatin intends that such forward-looking statements be subject to the safe harbors created thereby. Such forward-looking statements involve known and unknown risks, uncertainties and other factors that could cause Palatin's actual results to be materially different from its historical results or from any results expressed or implied by such forward-looking statements. Palatin's actual results may differ materially from those discussed in the forward-looking statements for reasons including, but not limited to, results of clinical trials, regulatory actions by the FDA and other regulatory and the need for regulatory approvals, Palatin's ability to fund development of its technology and establish and successfully complete clinical trials, the length of time and cost required to complete clinical trials and submit applications for regulatory approvals, products developed by competing pharmaceutical, biopharmaceutical and biotechnology companies, commercial acceptance of Palatin's products, and other factors discussed in Palatin's periodic filings with the Securities and Exchange Commission. Palatin is not responsible for updating events that occur after the date of this press release. Palatin Technologies® is a registered trademark of Palatin Technologies, Inc. SOURCE Palatin Technologies, Inc.

临床结果临床2期临床3期寡核苷酸

2024-05-15

·PRNewswire

Palatin Reports Third Quarter Fiscal Year 2024 Financial Results and Provides Corporate Update

Positive Phase 3 PL9643 MELODY-1 Pivotal Study Results Co-Primary Symptom Endpoint of Pain Met Statistical Significance (P<0.025) and 7 of 11 Secondary Symptom Endpoints Met Statistical Significance (P<0.05), at the12-Week Treatment Period Rapid Onset of Efficacy and Multiple Symptom Endpoints, Including the Co-Primary Pain Endpoint, Met Statistical Significance (P<0.05) at the 2-Week Treatment Period and Continued to Improve Over the 12-Week Treatment Period At the 2-Week Treatment Period, Multiple Sign Endpoints, Including All 4 Fluorescein Staining Endpoints, Met Statistical Significance (P<0.05) Excellent Safety and Tolerability Profile Oral Phase 2 PL8177 Clinical Study in Patients with Ulcerative Colitis Interim Analysis Expected in 2Q Calendar Year 2024 Topline Results Expected in 2H Calendar Year 2024 Obesity: Melanocortin Receptor 4 (MCR4) Agonist + Glucagon Like Peptide-1 (GLP-1) Phase 2 Clinical Study Targeted to Start 2Q Calendar Year 2024 Male Sexual Dysfunction: Bremelanotide Co-Formulated with a PDE5i for the Treatment of Erectile Dysfunction (ED) in Patients that do not Respond to PDE5i Monotherapy Phase 2 Clinical Study Targeted to Start 2Q Calendar Year 2024 Teleconference and Webcast to be held on May 15, 2024, at 11:00 AM ET CRANBURY, N.J., May 15, 2024 /PRNewswire/ -- Palatin Technologies, Inc. (NYSE American: PTN), a biopharmaceutical company developing first-in-class medicines based on molecules that modulate the activity of the melanocortin receptor system, today announced financial results for its fiscal third quarter ended March 31, 2024. "Study results of our successful Phase 3 MELODY-1 clinical trial for DED demonstrate that PL9643, with its early onset of efficacy for multiple symptoms and signs of dry eye disease and the excellent ocular safety and tolerability profile, has the potential to be a highly differentiated product," said Carl Spana, Ph.D., President and Chief Executive Officer of Palatin. "The efficacy results were statistically significant for the co-primary symptom endpoint of pain and 7 of 11 exploratory secondary endpoints, including eye dryness, as early as two weeks, which was the first time point measured. We are advancing discussions with potential collaboration partners and actively preparing for a meeting with the FDA later this year to discuss the remaining studies for the PL9643 program required to support an NDA submission." Dr. Spana further commented, "We are excited to launch two new therapeutic area clinical trials in the second quarter of calendar year 2024, with topline data readouts in the second half of calendar year 2024. The first is a Phase 2 clinical study of a MCR4 agonist plus a GLP-1 in obese patients. The second is a Phase 2 clinical study evaluating bremelanotide co-formulated with a PDE5i, for the treatment of erectile dysfunction in patients that do not respond to PDE5i monotherapy." Fiscal Third Quarter Ended March 31, 2024 Business Highlights and Recent Updates Anti-Inflammatory / Autoimmune Programs (melanocortin receptor agonists) Phase 3 PL9643 for the treatment of dry eye disease (DED): Successful Phase 3 MELODY-1 pivotal study completed Co-primary symptom endpoint of pain met statistical significance (P<0.025) and 7 of 11 secondary symptom endpoints met statistical significance (P<0.05), at the 12-week treatment period Rapid onset of efficacy and multiple symptom endpoints, including the co-primary pain endpoint, met statistical significance (P<0.05) at the 2-week treatment period and continued to improve over the 12-week treatment period At the 2-week treatment period, multiple sign endpoints, including all 4 fluorescein staining endpoints, met statistical significance (P<0.05) Excellent safety and tolerability profile After two weeks of treatment with PL9643, multiple sign endpoints, including all 4 fluorescein staining endpoints, were statistically significant Corneal fluorescein staining is used to measure corneal epithelial damage and reductions in corneal fluorescein staining with treatments like PL9643 indicate improvement in corneal health Positive results presented at the American Society of Cataract and Refractive Surgery (ASCRS) 2024 A Type C meeting with the FDA on key elements of the pivotal Phase 3 clinical program is expected in the third quarter of calendar year 2024 MELODY-2 & MELODY-3 initiation targeted for the second half of calendar year 2024 with an NDA submission targeted for second half of calendar year 2025 Additional trial information, including inclusion and exclusion criteria, can be found at via the identifier NCT04268069 Phase 2 PL8177 oral formulation for the treatment of ulcerative colitis (UC): Interim assessment expected in the second quarter of calendar year 2024 Topline data readout expected in the second half of calendar year 2024 Additional trial information, including inclusion and exclusion criteria, can be found at via the identifier NCT05466890 Phase 2 bremelanotide BREAKOUT study (BMT 701) in patients with diabetic kidney disease: Enrollment completed Topline results expected in the second quarter of calendar year 2024 Additional trial information, including inclusion and exclusion criteria, can be found at via the identifier NCT05709444 Metabolic Program (Obesity): Hosted a virtual KOL event "Beyond GLPs: The Multiple Roles for Novel Melanocortin Receptor 4 Agonists in treating Obesity & Weight Loss Maintenance" on May 8, 2024, which discussed the multiple clinical uses for MCR4 agonists in treating weight loss and weight loss maintenance Announced FDA clearance of IND application for the co-administration of melanocortin agonist bremelanotide with tirzepatide (GLP-1) in obese patients for the treatment of obesity Phase 2 clinical study targeted to start in the second quarter of calendar year 2024 and is designed to enroll up to 60 patients actively on tirzepatide with the primary endpoint of the trial to demonstrate the safety and increased efficacy of co-administration of bremelanotide with tirzepatide on reducing body weight Topline data readout expected in the second half calendar year 2024 Initiation of investigational new drug (IND) enabling activities for a novel MCR4 selective long-acting agonist expected in the second half of calendar 2024 The use of bremelanotide in combination therapy is supported by preclinical data with MCR4 agonist PL8905 and two previous clinical studies with bremelanotide demonstrating statistically significant effects on reducing food intake and weight loss in obese patients (published data; Spana C, Jordan R, Fischkoff S. Effect of Bremelanotide on Body Weight of Obese Women: Data from two Phase 1 Randomized Controlled Trials. Diabetes Obes Metab. 2022;1-10. doi:10.1111/dom.14672 is available at ) and published case report data combining an MCR4 agonist plus glucagon like peptide-1 (GLP-1) showing increased weight loss and greater glucose control above either monotherapy (McCorkle, C. et. al. Poster Obesity Week 2023) Male Sexual Dysfunction Program: Initiation of clinical program framework for the evaluation of bremelanotide co-formulated with PDE5 inhibitor (PDE5i), for the treatment of erectile dysfunction (ED) in patients that do not respond to PDE5i monotherapy: Phase 2 clinical study in PDE5i non-responder ED patients expected to commence in the second quarter of calendar year 2024 Topline data readout expected in the second half of calendar year 2024 Approximately 35% of men with ED fail or have an inadequate response to PDE5i treatments and represent a large underserved market Palatin previously conducted clinical trials showing the synergistic effects of combining bremelanotide with a PDE5i as a treatment for ED Other: Registered Direct Offering: On January 30, 2024, Palatin entered into a securities purchase agreement with healthcare-focused institutional investors, selling and issuing an aggregate of 1,831,503 shares of Palatin common stock, $0.01 par value per share, at a purchase price of $5.46 per share of common stock. Palatin also agreed to issue in a private placement warrants to purchase up to an aggregate of 1,831,503 shares of Palatin common stock at an exercise price of $5.46 per share. The Offering was completed on February 1, 2024, with the Company receiving gross proceeds of $10 million. The Common Warrants are exercisable beginning six months after the date of issuance and will expire on the date that is four years after the closing date. Fiscal Third Quarter Ended March 31, 2024 Financial Results Revenue Total revenue consists of gross product sales of Vyleesi, net of allowances and accruals. Pursuant to the completion of the sale of Vyleesi's worldwide rights for female sexual dysfunction to Cosette Pharmaceuticals for up to $171 million in December 2023, Palatin did not record any product sales to pharmacy distributors for the quarter ended March 31, 2024. For the quarter ended March 31, 2023, gross product sales were $3.4 million, with net product revenue of $1.2 million. Operating Expenses Total operating expenses were $9.2 million compared to $8.5 million for the comparable quarter last year. The increase was related to greater spending on our MCR programs, offset partially by the elimination of selling expenses related to Vyleesi. Other Income / (Expense) Total other income / (expense), net, consists mainly of the change in fair value of warrant liabilities, which Palatin had recorded as a liability on the consolidated financial statements, including the revisions of certain prior period amounts to correct a misstatement with respect to classifying warrants as equity instead of a liability. The statement of operations was adjusted each quarter to reflect changes in the fair value of these warrants. For the quarters ended March 31, 2024, and 2023, Palatin recorded a fair value adjustment gain of $0.4 million and a loss of $1.5 million, respectively. Warrant Liabilities Palatin had assessed the impact of improperly classifying the warrants related to the October 2022 financing within equity, rather than as a warrant liability that is adjusted through charges or credits to the statement of operations to reflect changes in the fair value of the warrants, and determined the impact was not material to any prior period impacted. Accordingly, the Company adjusted prior periods as those financial statements are presented for comparative purposes in future filings. On January 24, 2024, the Company and warrant holders amended the terms of the warrants related to the October 2022 and October 2023 financings. As a result, the $1.9 million of warrant liabilities as of June 30, 2023, was reclassified to additional paid-in capital upon amendment. Cash Flows Palatin's net cash used in operations was $8.6 million, compared to net cash used in operations of $1.4 million for the same period last year. The increase is mainly due to changes in working capital. Net Loss Palatin's net loss was $8.4 million, or $(0.53) per common share, compared to a net loss of $8.7 million, or $(0.76) per common share for the comparable period last year. The decrease over the comparable quarter last year was mainly due to a larger operating loss in fiscal 2024 offset by the higher other income primarily from changes in the fair value of warrant liabilities. Cash Position As of March 31, 2024, Palatin's cash, cash equivalents and marketable securities were $10.0 million, compared to cash, cash equivalents and marketable securities of $9.5 million plus $2.3 million of accounts receivable, as of December 31, 2023, and $5.5 million plus $1.3 million of accounts receivable, as of September 30, 2023, and cash, cash equivalents and marketable securities of $11.0 million plus $2.9 million of accounts receivable, as of June 30, 2023. The Company believes that existing cash, cash equivalents, marketable securities and accounts receivable, will be sufficient to fund currently anticipated operating expenses and disbursements into the second half of calendar year 2024. Conference Call / Webcast Palatin will host a conference call and audio webcast on May 15, 2024, at 11:00 a.m. Eastern Time to discuss the results of operations in greater detail and provide an update on corporate developments. Individuals interested in listening to the conference call live can dial 1-877-545-0523 (US) or 1-973-528-0016 (International), conference ID 720217. The audio webcast and replay can be accessed by logging on to the "Investor-Webcasts" section of Palatin's website at or by clicking here. A telephone and audio webcast replay will be available one hour after the completion of the call. To access the telephone replay, dial 1-877-481-4010 (US) or 1-919-882-2331 (International), passcode 50601. The webcast and telephone replay will be available through May 29, 2024. About Melanocortin Receptor Agonists The melanocortin receptor ("MCR") system has effects on inflammation, immune system responses, metabolism, food intake, and sexual function. There are five melanocortin receptors, MCR1 through MCR5. Modulation of these receptors, through use of receptor-specific agonists, which activate receptor function, or receptor-specific antagonists, which block receptor function, can have medically significant pharmacological effects. Many tissues and immune cells located in the eye (and other places, for example the gut and kidney) express melanocortin receptors, empowering our opportunity to directly activate natural pathways to resolve disease inflammation. About Palatin Palatin is a biopharmaceutical company developing first-in-class medicines based on molecules that modulate the activity of the melanocortin receptor systems, with targeted, receptor-specific product candidates for the treatment of diseases with significant unmet medical need and commercial potential. Palatin's strategy is to develop products and then form marketing collaborations with industry leaders to maximize their commercial potential. For additional information regarding Palatin, please visit Palatin's website at and follow Palatin on Twitter at @PalatinTech. Forward-looking Statements Statements in this press release that are not historical facts, including statements about future expectations of Palatin Technologies, Inc., such as statements about Palatin products in development, clinical trial results, potential actions by regulatory agencies including the FDA, regulatory plans, development programs, proposed indications for product candidates, and market potential for product candidates are "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934 and as that term is defined in the Private Securities Litigation Reform Act of 1995. Palatin intends that such forward-looking statements be subject to the safe harbors created thereby. Such forward-looking statements involve known and unknown risks, uncertainties and other factors that could cause Palatin's actual results to be materially different from its historical results or from any results expressed or implied by such forward-looking statements. Palatin's actual results may differ materially from those discussed in the forward-looking statements for reasons including, but not limited to, results of clinical trials, regulatory actions by the FDA and other regulatory and the need for regulatory approvals, Palatin's ability to fund development of its technology and establish and successfully complete clinical trials, the length of time and cost required to complete clinical trials and submit applications for regulatory approvals, products developed by competing pharmaceutical, biopharmaceutical and biotechnology companies, commercial acceptance of Palatin's products, and other factors discussed in Palatin's periodic filings with the Securities and Exchange Commission. Palatin is not responsible for updating events that occur after the date of this press release. Palatin Technologies® is a registered trademark of Palatin Technologies, Inc. (Financial Statement Data Follows) SOURCE Palatin Technologies, Inc.

临床结果临床2期临床3期临床1期财报

100 项与 PL-8177 相关的药物交易

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适应症	最高研发状态	国家/地区	公司	日期
重度慢性溃疡性结肠炎	临床2期	美国	Palatin Technologies, Inc.	2022-09-15
溃疡	临床2期	美国	Palatin Technologies, Inc.	2022-09-15
关节炎	临床前	美国	Palatin Technologies, Inc.	2022-11-24

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研究	分期	人群特征	评价人数	分组	结果	评价	发布日期


UEGW	N/A	结肠炎	-	PL8177 50 Î¼g	壓鬱製廠壓蓋鹹鏇網艱(繭鏇餘窪願糧鑰網獵壓) = 餘憲淵蓋積鏇廠構淵獵廠選遞淵淵壓鹹鬱艱選 (顧選選選獵遞醖鹽遞蓋 )	-	2023-10-15