Mustang Bio Announces Updated Results from Waldenstrom Macroglobulinemia Cohort of Ongoing Phase 1/2 Clinical Trial of MB-106, CD20-Targeted Autologous CAR T Therapy

On June 12, 2023 Mustang Bio, Inc. ("Mustang" or the "Company") (Nasdaq: MBIO), a clinical-stage biopharmaceutical company focused on translating today’s medical breakthroughs in cell and gene therapies into potential cures for difficult-to-treat cancers and rare genetic diseases, reported that updated data from the ongoing Phase 1/2 clinical trial of MB-106, a CD20-targeted, autologous CAR T cell therapy, show a favorable safety and efficacy profile in patients with Waldenstrom macroglobulinemia ("WM"), a rare form of blood cancer (Press release, Mustang Bio, JUN 12, 2023, View Source [SID1234632674]). MB-106 is being developed in a collaboration between Mustang and Fred Hutchinson Cancer Center ("Fred Hutch") to treat patients with relapsed or refractory B-cell non-Hodgkin lymphomas ("B-NHLs") and chronic lymphocytic leukemia ("CLL").

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The updated results from the single-institution Phase 1/2 clinical trial were presented during a poster session at the European Hematology Association (EHA) (Free EHA Whitepaper) 2023 Hybrid Congress ("EHA2023") by Mazyar Shadman, M.D., M.P.H., Associate Professor and physician at Fred Hutch and University of Washington.

"As we continue to evaluate MB-106 in this single-institution study, we’re encouraged by its potential to become an outpatient treatment option for WM and other B-cell malignancies, including indolent and aggressive non-Hodgkin lymphomas," said Dr. Shadman. "We have observed ongoing responses to MB-106 with improvements in the quality of response over time, along with a favorable safety profile."

All six patients in the study were previously treated with Bruton’s tyrosine kinase inhibitors ("BTKi"), and their disease continued to progress while on BTKi’s. Overall, 83% (5/6) of the patients treated with MB-106 responded to treatment, including 2 complete responses, 1 very good partial response, 1 partial response, and 1 minor response. In addition, 1 patient experienced stable disease. One of the patients who achieved a complete response has remained in remission for 22 months, with an immunoglobulin M (IgM) level that decreased rapidly to the normal range after treatment with MB-106 and has remained normal since. No patient has started additional anti-WM treatment after being treated with MB-106. From a safety perspective, cytokine release syndrome (CRS) occurred in five patients: two patients with grade 1 and three patients with grade 2. One patient experienced grade 1 immune effector cell-associated neurotoxicity syndrome (ICANS). No grade 3 or 4 CRS or grade 2, 3 or 4 ICANS has been observed.

Manuel Litchman, M.D., President and Chief Executive Officer of Mustang, commented, "MB-106 has the potential to fill a significant unmet need, as there are currently no CAR T treatments for WM approved by the U.S. Food and Drug Administration ("FDA"). The MB-106 data from the Phase 1/2 clinical trial taking place at Fred Hutch continue to be encouraging for WM and other B-NHLs. The positive data from this study and the FDA Orphan Drug Designation MB-106 received for WM support the treatment of patients with WM in the Phase 1 portion of our multicenter Phase 1/2 clinical trial which is underway and also support a fast-to-market Phase 2 strategy for this indication. We plan to report initial clinical data from the multicenter program shortly."

For more information on the clinical trials, please visit www.clinicaltrials.gov using the identifier NCT05360238 for the multicenter trial and NCT03277729 for the ongoing trial at Fred Hutch.

Scientists at Fred Hutch played a role in developing these discoveries, and Fred Hutch and certain of its scientists may benefit financially from this work in the future.

About MB-106 (CD20-targeted autologous CAR T Cell Therapy)
CD20 is a membrane-embedded surface molecule which plays a role in the differentiation of B-cells into plasma cells. The CAR T was developed by Mustang’s research collaborator, Fred Hutch, in the laboratories of the late Oliver Press, M.D., Ph.D., and Brian Till, M.D., Associate Professor in the Clinical Research Division at Fred Hutch, and was exclusively licensed to Mustang in 2017. The lentiviral vector drug substance used to transduce patients’ cells to create the MB-106 drug product produced at Fred Hutch has been optimized as a third-generation CAR derived from a fully human antibody, and MB-106 is currently in a Phase 1/2 open-label, dose-escalation trial at Fred Hutch in patients with B-NHLs and CLL. The same lentiviral vector drug substance produced at Fred Hutch is being used to transduce patients’ cells to create the MB-106 drug product produced at Mustang Bio’s Worcester, MA, cell processing facility for administration in the multicenter Phase 1/2 clinical trial that is now open to enrollment under Mustang Bio’s IND. It should be noted that Mustang Bio has introduced minor improvements to its cell processing to facilitate eventual commercial launch of the product. In addition, prior to commercial launch, Mustang Bio will replace the Fred Hutch lentiviral vector drug substance with vector produced at a commercial manufacturer. Additional information on the trials can be found at View Source using the identifier NCT05360238 for the multicenter trial and NCT03277729 for the ongoing trial at Fred Hutch. Mustang Bio has entered into an Asset Purchase Agreement pursuant to which it has agreed to sell, subject to the satisfaction of certain conditions, its leasehold interest in its cell processing facility and expects to enter into a manufacturing services agreement with the prospective purchaser to provide for the continued production of the MB-106 drug product. For additional information, please refer to the Current Report on Form 8-K filed by Mustang Bio with the U.S. Securities and Exchange Commission ("SEC") on May 22, 2023.

Theratechnologies June 13 Oncology Investigator Call to Update Investors & Analysts on Phase 1 Sudocetaxel Zendusortide Trial

On June 12, 2023 Theratechnologies Inc. ("Theratechnologies" or the "Company") (TSX: TH) (NASDAQ: THTX), a biopharmaceutical company focused on the development and commercialization of innovative therapies, reported that it will hold a video conference call on Tuesday, June 13, 2023, to update investors and analysts on the Phase 1 trial of its lead peptide-drug conjugate (PDC) candidate, sudocetaxel zendusortide (formerly TH1902), for the treatment of solid tumors (Press release, Theratechnologies, JUN 12, 2023, View Source [SID1234632671]).

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During the call, Theratechnologies will provide insights on preliminary Phase 1 safety and efficacy data that were presented at the 2023 annual meeting of the American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper), as well as the U.S. Food and Drug Administration’s (FDA) recent agreement to the Company’s amended Phase 1 trial protocol. Both events are significant milestones in the development of sudocetaxel zendusortide, a PDC that targets the sortilin (SORT1) receptor, and a product of Theratechnologies’ SORT1+ Technology platform.

Paul Lévesque, President and Chief Executive Officer of Theratechnologies, will host the call, which will feature presentations from the Company’s Senior Vice President and Chief Medical Officer, Christian Marsolais, Ph.D., as well as from investigators from the Phase 1 trial. Presenters will be available to answer questions following prepared remarks.

Registration information:

Title: Oncology Investigator Call for Investors & Analysts: Phase 1 Trial Update
Date: June 13, 2023
Time: 10:00 AM EDT
Webcast link: View Source
Dial in: 1-888-317-6003 (toll free) or 1-412-317-6061 (International)
(Participant entry #: 2792560)
An archived webcast will also be available on the Company’s Investor Relations website under ‘Past Events’.

About SORT1+ Technology and Sudocetaxel Zendusortide (TH1902)
Theratechnologies has established its SORT1+ Technology platform as an engine for the development of proprietary peptide-drug conjugates (PDCs) that target the sortilin (SORT1) receptor, which is expressed in multiple tumor types. SORT1 is a "scavenger" receptor that plays a significant role in protein internalization, sorting, and trafficking. Expression of SORT1 is associated with aggressive disease, poor prognosis, and decreased survival. It is estimated that SORT1 is expressed in 40% to 90% of endometrial, ovarian, colorectal, triple-negative breast (TNBC), and pancreatic cancers, making this receptor an attractive target for anticancer drug development.

Sudocetaxel zendusortide is a first-of-its-kind SORT1-targeting PDC, and the first compound to emerge from the SORT1+ Technology platform. A new chemical entity, sudocetaxel zendusortide employs a cleavable linker to conjugate (attach) a proprietary peptide to docetaxel, a well-established cytotoxic chemotherapeutic agent used to treat many cancers. The FDA granted Fast Track designation to sudocetaxel zendusortide as a single agent for the treatment of all sortilin-positive recurrent advanced solid tumors that are refractory to standard therapy. Sudocetaxel zendusortide is currently being evaluated in a Phase 1 clinical trial.

TriSalus Life Sciences Presents Additional Data for SD-101 Delivered by the Proprietary PEDD™ Method with the TriNav™ Device for Uveal Melanoma Liver Metastases at the ASCO 2023 Annual Meeting

On June 12, 2023 TriSalus Life Sciences Inc., (TriSalus or the Company), an oncology company in the process of going public through a business combination transaction (the Business Combination) with MedTech Acquisition Corporation (Nasdaq: MTAC) (MedTech or MTAC), reported additional Phase 1 clinical data presented at the American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) 2023 Annual Meeting taking place in Chicago, Illinois, from June 2-6, 2023 (Press release, TriSalus Life Sciences, JUN 12, 2023, View Source [SID1234632669]).

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TriSalus’ ongoing Phase 1 Pressure-Enabled Regional Immuno-Oncology (PERIO-01) (NCT04935229) clinical study for uveal melanoma with liver metastases (UMLM) is studying an investigational class C toll-like receptor-9 agonist, SD-101, delivered intravascularly by TriSalus’ TriNav Infusion System (TriNav) using the Company’s proprietary Pressure-Enabled Drug Delivery (PEDD) method of administration. PERIO-01 is evaluating whether this platform approach can improve the performance of systemic checkpoint inhibitors in patients with UMLM.

"The data presented by Dr. Kamaneh Montazeri from Mass General Brigham at ASCO (Free ASCO Whitepaper) reflect important clinical progress of our Phase 1 PERIO-01 trial and builds on the promising data released in April," said Steven C. Katz, MD, FACS, Chief Medical Officer at TriSalus. "We are pleased that SD-101 in combination with systemic checkpoint inhibition and delivered with TriNav was well tolerated based on a low treatment related serious adverse event rate of 5% and resulted in immune cell activation and natural killer cell expansion. We look forward to moving into Phase 2 later this year and are optimistic about the potential of SD-101 playing an important role in the management of patients with UMLM."

Pharmacokinetic data indicate that the strategy of delivering a toll-like receptor-9 agonist with the PEDD method results in high drug levels in the liver, while the drug is undetectable after four hours in the serum in 97% of patients with available data. The immune effects in liver metastases and the blood are consistent with broad tumor microenvironment modulation and the ability of SD-101 to deplete myeloid derived suppressor cells (MDSCs) in the liver.

PERIO-01 is an open-label, first-in-human Phase 1 trial of SD-101, administered by hepatic arterial infusion with TriNav using PEDD in UMLM. The study consists of dose-escalation cohorts of SD-101 (2, 4, or 8 mg) alone or with immune checkpoint inhibition. At the data cutoff as of May 12, 2023, 39 patients were enrolled in the PERIO-01 trial, with each having received at least one dose of SD-101. Of the patients with available data, five patients were treatment-naïve and 81% had failed at least one prior line of therapy, including three patients on their sixth-line of treatment.

Following receipt of SD-101, patients demonstrated a statistically significant expansion of peripheral natural killer cells, along with evidence of decreased expression of exhaustion markers on these cells. Increases in serum cytokines, including IFNg and IL-18, also supported systemic immune activation. Additionally, decreased levels of ctDNA levels were observed within eight out of 13 evaluable patients. Stable disease was noted as the best on-treatment response for target lesions in 15 out of 25 patients, with one partial response.

These findings, along with reductions of intratumoral MDSCs and decreases in ARG-1 (arginase 1) and IDO-1 (indoleamine 2,3-dioxygenase-1) gene levels, support the hypothesis that SD-101 delivered via PEDD may have favorable immune effects within the liver and systemically.

Overall, the data emerging from the PERIO-01 trial continues to indicate immunologic changes are occurring within the liver, with decreases in ctDNA and disease control observed across a group of heavily pre-treated patients with UMLM, as well as a low treatment-related serious adverse event rate.

The data were also selected for presentation at the Developmental Therapeutics – Immunotherapy Poster Discussion Session on June 3, 2023 at 3:00pm CT.

RedHill Biopharma Announces Q1/2023 Financial Results and Operational Highlights

On June 12, 2023 RedHill Biopharma Ltd. (Nasdaq: RDHL) ("RedHill" or the "Company"), a specialty biopharmaceutical company, reported its first quarter 2023 financial results and operational highlights (Press release, RedHill Biopharma, JUN 12, 2023, View Source [SID1234632667]).

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Dror Ben-Asher, RedHill’s Chief Executive Officer, said: "2023 has commenced with purpose and clarity, with a streamlined cost-base and without the restrictive burden of debt. Commercial focus, once the Movantik transition period is complete, will see all efforts aligning to maximize Talicia and potentially secure additional revenue-generating products to further augment our commercial portfolio. There is equal clarity on the R&D front with full focus being applied to opaganib, RHB-107 and RHB-102. Opaganib’s current development for Acute Radiation Syndrome is under the guidance and full financial support of the NIH Radiation and Nuclear Countermeasures Program product development contract, while RHB-107’s late-stage development for non-hospitalized COVID-19 will benefit from the resources we are able to redirect from the terminated RHB-204 Phase 3 study. Additional antiviral research with NIH and the US Army also continues for both product candidates for pandemic preparedness purposes."
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1 Including cash, cash equivalents, short-term bank deposits and restricted cash.
2 Including all principal, interest, revenue interest, prepayment premiums and exit fees under the Credit Agreement between RedHill’s U.S. subsidiary RedHill Biopharma Inc. and HCR Collateral Management LLC ("HCR"). Remaining pre-closing liabilities related to Movantik as of March 31, 2023, estimated at $27 million.
Financial results for the three months ended March 31, 2023 (Unaudited)3

Net Revenues for the first quarter of 2023 were $3.6 million, as compared to $12.8 million for the fourth quarter of 2022. The decrease is primarily related to the divestiture of Movantik, resulting in the discontinuation of revenue recognition from this product starting from February 2, 2023. Talicia net revenues for the first quarter of 2023 were $3.4 million, as compared to $2.2 million for the fourth quarter of 2022, primarily due to an increase of 20% in units sold.

Cost of Revenues for the first quarter of 2023 were $1.6 million, as compared to $8.6 million for the fourth quarter of 2022. This decrease can be primarily attributed to the divestiture of Movantik. As a result of this divestiture, both the recognition of revenue and the associated cost of revenues for this product were discontinued starting from February 2, 2023. Additionally, the amortization of the intangible asset related to Movantik was also discontinued as of that date.

Gross Profit for the first quarter of 2023 was $2.0 million, as compared to $4.2 million for the fourth quarter of 2022, in line with the decrease in Net Revenues and Cost of Revenues as explained above and primarily attributed to the divestiture of Movantik.

Research and Development Expenses for the first quarter of 2023 were $1.1 million, consistent with the fourth quarter of 2022.

Selling, Marketing and General and Administrative Expenses for the first quarter of 2023 were $10.9 million, as compared to $13.0 million for the fourth quarter of 2022. The difference was primarily attributable to the successful ongoing cost-reduction measures.

Other Income for the first quarter of 2023 was $39.1 million, as compared to no other income recognized for the fourth quarter of 2022. The other income was comprised of (i) $35.5 million from the sale of Movantik, calculated as the difference between the fair value of the rights and the carrying amount of this asset; and (ii) from transitional services fees provided to the buyer of Movantik.

Operating Income for the first quarter of 2023 was $29.1 million, as compared to an operating loss of $9.9 million for the fourth quarter of 2022, primarily attributed to the changes resulting from the sale of Movantik, as detailed above.

Financial Income, net for the first quarter of 2023 was $21.2 million, as compared to Financial Income, net of $6.2 million for the fourth quarter of 2022. The income recognized in the first quarter of 2023 was primarily related to gain resulting from the extinguishment of the HCR Collateral Management LLC ("HCR") debt in exchange for the transfer of rights to Movantik, calculated as the difference between the carrying amount of the financial liability and the fair value of the rights transferred.
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3 All financial highlights are approximate and are rounded to the nearest hundreds of thousands.
Net Income for the first quarter of 2023 was $50.2 million, as compared to Net Loss of $3.7 million for the fourth quarter of 2022, primarily attributed to the changes resulting from the sale of Movantik, as detailed above.

Total Assets as of March 31, 2023, were $58.8 million, as compared to $158.9 million as of December 31, 2022. The decrease was primarily attributable to the sale of Movantik, resulting in the transfer of the rights to Movantik, as well as to a significant decrease in the Trade Receivables balance following the sale of Movantik.

Total Liabilities as of March 31, 2023, were $56.8 million, as compared to $207.3 million as of December 31, 2022. This decrease was primarily due to the extinguishment of HCR debt in exchange for the transfer of Movantik rights, assumption of certain liabilities by HCR, and payments made towards pre-closing liabilities related to Movantik.

Net Cash Used in Operating Activities for the first quarter of 2023 was $7.2 million, as compared to $2.4 million for the fourth quarter of 2022. The difference was primarily attributed to the payments made towards the pre-closing liabilities related to Movantik.

Net Cash Provided by Financing Activities for the first quarter of 2023 was $4.8 million comprised primarily of prepayment from the registered direct offering that closed on April 3, 2023, and the decrease in restricted cash offset by payment in respect of intangible assets purchases.

Cash Balance as of March 31, 2023, was $28.8 million4.

Business updates

On May 15, 2023, the Company announced that it had received a written notification from the Nasdaq Stock Market LLC ("Nasdaq") dated May 9, 2023, indicating that the Company is not in compliance with the minimum Market Value of Publicly Held Shares ("MVPHS") set forth in the Nasdaq Rules for continued Nasdaq listing. Nasdaq Listing Rule 5450(b)(3)(C) requires companies to maintain a minimum MVPHS of US$15 million, and Listing Rule 5810(c)(3)(D) provides that a failure to meet the MVPHS requirement exists if the deficiency continues for a period of 30 consecutive business days. Pursuant to Nasdaq Listing Rule 5810(c)(3)(D), the Company has a compliance period of 180 calendar days (or until November 6, 2023) to regain compliance. If at any time during this compliance period the Company’s MVPHS closes at US$15 million or more for a minimum of ten consecutive business days, Nasdaq will notify the Company that it has achieved compliance with the MVPHS requirement, and the MVPHS matter will be closed. In the event the Company does not regain compliance with Rule 5450(b)(3)(C) prior to the expiration of the compliance period, it will receive written notification that its securities are subject to delisting. Alternatively, the Company may consider applying to transfer its securities to the Nasdaq Capital Market. This notification does not impact the listing and trading of the Company’s securities at this time.
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4 Including cash, cash equivalents, short-term bank deposits and restricted cash.
On April 11, 2023, the Company announced that it had received confirmation from Nasdaq that it had regained compliance with the minimum bid price requirement under Nasdaq Listing Rule 5450(a)(1) for continued Nasdaq listing. To regain compliance with Nasdaq Listing Rule 5450(a)(1), the Company was required to maintain a minimum closing bid price of $1.00 or more for at least 10 consecutive trading days, which was achieved on April 5, 2023. Listing compliance follows the Company’s implementation of a ratio change of the Company’s American Depositary Shares ("ADSs") to its non-traded ordinary shares from the previous ratio of one (1) ADS representing ten (10) ordinary shares to a new ratio of one (1) ADS representing four hundred (400) ordinary shares, which the Company announced on March 16, 2023. The ratio change came into effect on March 23, 2023, and the Company’s ADSs continue to be traded on Nasdaq under the symbol "RDHL" with a new CUSIP Number 757468202.

On April 3, 2023, the Company announced the closing of a $6 million registered direct offering for the purchase and sale of 1,500,000 of the Company’s ADSs (or ADS equivalents), Series A warrants to purchase up to an aggregate of 1,500,000 ADSs and Series B warrants to purchase up to an aggregate of 1,500,000 ADSs. The Series A warrants have an exercise price of $4.75 per ADS, are exercisable immediately and have a term of five years following issuance, and the Series B warrants have an exercise price of $4.00 per ADS, are exercisable immediately and have a term of nine months following issuance. 811,000 ADSs underlying pre-funded warrants purchased at the registered direct offering were exercised following the closing of the offering, announced April 3, 2023. The Company expects to recognize $1.1 million as a financial expense in the second quarter of 2023 due to the difference between the fair value of the warrants arising from the registered direct offering to the transaction price.

On February 6, 2023, the Company announced the extinguishment of all RedHill’s debt obligations (including all principal, interest, revenue interest, prepayment premiums and exit fees) under the Credit Agreement between RedHill’s U.S. subsidiary, RedHill Biopharma Inc., and HCR, announced February 25, 2020, as amended, in exchange for the transfer of its rights in Movantik (naloxegol) to Movantik Acquisition Co., an affiliate of HCR. HCR assumed substantially all post-closing liabilities, and RedHill retained substantially all pre-closing liabilities relating to Movantik. As part of the parties’ arrangement, and to ensure continuous patient care, RedHill provides HCR with transition services for up to 12 months, paid for by HCR. HCR will retain security interests in certain RedHill assets until substantially all pre-closing liabilities relating to Movantik have been paid or other specific conditions are met.

In the first quarter of 2023, the Company sold 2,625 ADSs through its at-the-market facility at an average price of $7.34 per ADS, for aggregate net proceeds of approximately $20,000.
RedHill continues its litigation against Kukbo Co. Ltd. ("Kukbo") which was filed on September 2022 as a result of Kukbo’s default in delivering to RedHill a total of $6.5 million under the Subscription Agreement, dated October 25, 2021 and the Exclusive License Agreement, dated March 14, 2022. Following a recent court decision on RedHill’s motion to dismiss Kukbo’s counterclaims, which accepted certain claims of RedHill and rejected others, RedHill filed a motion to reargue (a motion to clarify and correct some of the court’s rulings). RedHill further plans to continue to rigorously pursue the Kukbo litigation.

RedHill is actively pursuing strategic business development transactions, including potential in-licensing revenue-generating assets in the U.S. and out-licensing certain RedHill development pipeline assets.

Commercial Highlights

Talicia (omeprazole magnesium, amoxicillin and rifabutin)5


Q1/23 saw Talicia recording a 9.6% increase in new prescriptions compared to the same period last year, maintaining its place as the leading prescribed branded H. pylori therapy by U.S. gastroenterologists6.


On May 9, 2023, the Company announced new Talicia PBPK modeling data, published in AP&T Journal7, showing that generically substituted regimens are non-bioequivalent to Talicia. Separately, new Talicia PBPK modeling data, presented at Digestive Diseases Week (DDW) 2023, supports bioequivalence between TID and Q8H dosing regimens for Helicobacter pylori (H. pylori) eradication therapy; TID dosing is thought to promote patient adherence without impacting efficacy.


On March 21, 2023, the Company announced the establishment of a warranty program for Talicia, in which RedHill committed to reimburse patient out of pocket costs should Talicia not work. This warranty commitment extends to all commercially insured and non-insured Talicia patients who complete the full 14-day treatment course and whose infection is not eradicated based on post-treatment confirmation testing8. It is believed that this is the first time a warranty program has been offered for a widespread community (non-hospital) treated condition, lowering the bar for patient access.


Total Talicia coverage stood at more than 202 million American lives as of March 31, 2023.
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5 Talicia (omeprazole magnesium, amoxicillin and rifabutin) is indicated for the treatment of H. pylori infection in adults. For full prescribing information see: www.Talicia.com.
6 IQVIA XPO Data on file
7 Howden et al. Physiologically based pharmacokinetic modelling to predict intragastric rifabutin concentrations in the treatment of Helicobacter pylori infection. Alimentary Pharmacology and Therapeutics, April 2023. View Source
8 Talicia Warranty Program eligibility: View Source
Aemcolo (rifamycin)9


On December 5, 2022, the Company announced that the FDA Exclusivity Board has granted Aemcolo five years’ exclusivity under the FDA’s Qualified Infectious Disease Product (QIDP) designation in addition to the five years NCE data exclusivity, extending regulatory exclusivity through to 2028.

Movantik (naloxegol)10


On February 6, 2023, the ownership of Movantik was transitioned to Movantik Acquisition Co., an affiliate of HCR, in exchange for extinguishment of all RedHill’s debt obligations with HCR. Movantik is no longer a RedHill product. Revenues for Movantik were recorded up to and including February 1, 2023.


As part of the agreement, and to ensure continuous patient care, RedHill is providing HCR with transition services for up to 12 months, paid for by HCR.

R&D Highlights

Opaganib (ABC294640)11 – A novel broad-acting, host-directed oral antiviral targeting radioprotection, COVID-19, other viruses as part of a pandemic preparedness approach, inflammatory indications and oncology.

Nuclear Medical Countermeasures (Acute Radiation Syndrome):


On February 28, 2023, the Company announced that the Radiation and Nuclear Countermeasures Program (RNCP), of the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health, has selected opaganib for the nuclear medical countermeasures product development pipeline as a potential treatment for Acute Radiation Syndrome (ARS). As part of this collaboration, contractors directed and supported by the RNCP will undertake studies, designed in collaboration with RedHill, to test opaganib in established ARS models. This follows the February 15, 2023, announcement that the FDA provided guidance on the use of the Animal Rule for opaganib’s developmental pathway for Acute Radiation Syndrome (ARS), utilizing pivotal animal model efficacy studies instead of human clinical trials. Sponsors of approved medical countermeasures are eligible for a Priority Review Voucher. These announcements followed publication of data from eight U.S. government-funded in vivo studies, and additional experiments, indicating that opaganib was associated with:

o
Protection of normal tissue, including gastrointestinal, from radiation damage due to ionizing radiation exposure or cancer radiotherapy.

o
Improvement of antitumor activity, response to chemoradiation, and enhancement of tolerability and survival.


Additional collaboration discussions with U.S. and other governments are ongoing.
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9 Aemcolo (rifamycin) is indicated for the treatment of travelers’ diarrhea caused by noninvasive strains of Escherichia coli in adults. For full prescribing information see: www.aemcolo.com.
10 Movantik (naloxegol) is indicated for opioid-induced constipation (OIC). Full prescribing information see: www.movantik.com.
11 Opaganib is an investigational new drug, not available for commercial distribution.
Pandemic preparedness and oncology:


Preclinical development of opaganib, in collaboration with the US Army and NIAID, for various antiviral indications is ongoing.


On May 1, 2023, the Company announced that the U.S. Patent and Trademark Office (USPTO) had granted a new patent for opaganib in respect to combination compositions for treatment of cancer, extending protection to October 2036.

RHB-107 (upamostat)12 – A novel broad-acting, host-directed oral antiviral targeting COVID-19, other viruses as part of a pandemic preparedness approach, inflammatory and oncology indications.

Outpatient treatment of COVID-19:


On January 3, 2023, the Company announced publication of positive data from a Phase 2 study of once-daily oral investigational RHB-107 (upamostat) in non-hospitalized symptomatic COVID-19 patients, in the peer-reviewed International Journal of Infectious Diseases13. The study showed that RHB-107 successfully met the primary endpoint of safety and tolerability and delivered promising efficacy results, despite the small number of patients in each treatment group, including faster recovery from severe COVID-19 symptoms and 100% reduction in hospitalization due to COVID-19.


Discussions are ongoing for external non-dilutive funding for additional late-stage COVID-19 clinical development.

Pandemic preparedness / additional viral indications:


RHB-107 is also the subject of several cooperative research projects with government and non-government bodies, evaluating RHB-107 against multiple viral targets, including influenza and Ebola (amongst others).

RHB-102 (BEKINDA) – Oncology Support


On May 1, 2023, the Company announced that the European Patent Office granted RHB-102 (BEKINDA), a 24-hr bimodal release, once-daily oral tablet formulation of ondansetron, a patent covering antiemetic extended-release solid dosage forms for the prevention of nausea and vomiting (CINV/RINV). The patent provides the potential for UK and EU protection of RHB-102 to March 2034.


On February 16, 2023, the Company announced that it held a positive pre-Marketing Authorisation Application meeting with the UK Medicines & Healthcare products Regulatory Agency (MHRA) with regard to seeking marketing approval for RHB-102 (BEKINDA) for oncology support (management of nausea and vomiting induced by cytotoxic chemotherapy and radiotherapy, also referred to as CINV and RINV).


Discussions for potential commercialization partners are ongoing.

RHB-204 – Pulmonary Nontuberculous Mycobacteria (NTM) Disease14 (NTM)


On May 22, 2023, the Company announced the termination of RHB-204’s U.S. Phase 3 study for non-tuberculosis mycobacteria (NTM) disease due to a very low accrual rate. This decision is intended to enable the Company to better focus its resources on key pipeline catalysts and revenue-generating product acquisition, while searching for out-licensing partners for RHB-204.
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14 RHB-204 is an investigational new drug, not available for commercial distribution.

Marker Therapeutics Announces First Lymphoma Patient Treated with MT-601 in Phase 1 Clinical Trial

On June 12, 2023 Marker Therapeutics, Inc. (Nasdaq: MRKR), a clinical-stage immuno-oncology company focusing on developing next-generation T cell-based immunotherapies for the treatment of hematological malignancies and solid tumor indications, reported that the first patient has been treated in the company sponsored Phase 1 multicenter APOLLO trial investigating MT-601, a multi-tumor-associated antigen (multiTAA)-specific T cell product targeting six antigens, for the treatment of patients with lymphoma who have failed or are ineligible to receive anti-CD19 CAR T cell treatment (Press release, Marker Therapeutics, JUN 12, 2023, View Source [SID1234632664]).

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Adoptive T cell transfer, such as genetically modified T cells expressing anti-CD19 chimeric antigen receptors (CARs) targeting CD19 antigens, is a therapeutic modality that has recently demonstrated impressive clinical impact in patients with large B-cell malignancies who have failed more than two lines of treatment. Administration of anti-CD19 CAR T cells to patients with relapsed/refractory B-cell lymphomas have been a transformative treatment paradigm because of their significant benefit relative to the standard of care. However, for various reasons, including low antigen levels and loss of CD19 antigen expression, anti-CD19 CAR T cell therapy is associated with relapse rates of up to 60%, within one year (Chong et al, N Engl J Med, 2021). In addition, a number of patients with relapsed/refractory B-cell lymphomas are ineligible for anti-CD19 CAR T cell therapy due to the associated toxicities.

A recent Phase 1 study conducted by Baylor College of Medicine (TACTAL) investigated the safety and efficacy of a multiTAA-specific T cell product that recognizes five tumor antigens in both Hodgkin’s lymphoma and non-Hodgkin’s lymphoma (Vasileiou et al, J Clin Oncol, 2021). Treatment with this multiTAA-specific T cell product resulted in positive patient outcomes with some patients remaining in complete remission at the 72 months follow-up.

Marker is developing MT-601, an autologous T cell product that is directed against six tumor associated antigens for the treatment of patients with relapsed/refractory lymphoma who are either ineligible to receive or have failed anti-CD19 CAR T cell therapy. Given the positive TACTAL trial results, which targeted five tumor associated antigens, Marker believes broadening its multiTAA-specific T cell product to target six antigens could result in better and more durable responses due to its ability to overcome antigen loss by targeting more than one antigen.

The recent press release issued by Marker on May 31, 2023, referenced in vitro nonclinical data indicating that MT-601 prevented growth of lymphoma cells regardless of CD19 expression and prevented growth of CD19 expressing lymphoma cells that had become resistant to CAR T infusion. These data demonstrate the therapeutic potential of MT-601.

The APOLLO trial (clinicaltrials.gov Identifier: NCT05798897) sponsored by Marker is assessing MT-601 in patients with lymphoma who have either relapsed after anti-CD19 CAR T cell therapy or were ineligible to receive it. The primary objective of this exploratory Phase 1 clinical trial is to evaluate the optimum dose, safety, and preliminary efficacy of MT-601 in patients with various lymphoma subtypes. Data from the APOLLO trial will guide Marker Therapeutics on the future development of MT-601.

The first patient in the APOLLO trial recently received MT-601 at the 200 million cell dose level. This patient was monitored for 18 days after being dosed and showed no treatment-related adverse events, indicating that the therapy was well tolerated. This observation is consistent with the favorable safety profile and tolerability previously reported for lymphoma patients in the TACTAL study. Under the APOLLO trial, eight clinical sites across the United States will cumulatively enroll up to 30 patients during the dose escalation phase.

"The initiation of clinical treatment under the APOLLO trial represents not just a major achievement for our team at Marker, but a beacon of hope for countless individuals with lymphoma who are confronting the reality of disease progression," said Monic Stuart, M.D., Chief Medical Officer of Marker Therapeutics. "Our vision with MT-601 is to fundamentally change the treatment landscape of lymphoma, providing a solution that could drastically enhance the lives of patients."

"Phase 1 of the clinical trial is a critical period," continued Dr. Stuart. "This stage will provide us with key insights into the safety, optimal dosage range, and initial efficacy of MT-601. The collected data will serve as a foundation for refining our understanding of the performance of MT-601 and its potential outcomes in patients with lymphoma who have relapsed after anti-CD19 CAR T therapy."

"We are grateful to our dedicated team of scientists, clinicians, and trial participants who have made this significant step possible," said Juan F. Vera, M.D., Chief Executive Officer of Marker Therapeutics. "Behind this milestone is an extensive body of research and a rigorous development process. The initiation of this clinical trial is rooted in a set of scientific data, which has shown compelling signs of potential clinical impact of MT-601 in attacking anti-CD19 CAR T refractory lymphoma cells. These promising nonclinical results, together with previous clinical observations from the TACTAL study, have given us confidence in the potential for multiTAA-specific T cell therapies to target lymphoma cells."

"The initiation of clinical treatment under the Phase 1 trial of MT-601 is a major step in our mission to bring forward transformative advancements in lymphoma treatment, with the goal of significantly improving patient outcomes. We are committed to diligently monitoring and analyzing the data from this Phase 1 clinical trial to ensure we continue making informed decisions that prioritize patient safety and therapeutic effectiveness," concluded Dr. Vera.

About multiTAA-specific T cells

The multi-tumor associated antigen (multiTAA)-specific T cell platform is a novel, non-genetically modified cell therapy approach that selectively expands tumor-specific T cells from a patient’s blood capable of recognizing a broad range of tumor antigens. Clinical trials that enrolled more than 180 patients with various hematological malignancies and solid tumors showed that the multiTAA-specific T cell product was well tolerated, demonstrated durable clinical responses, and consistent epitope spreading. The latter is typically not observed with other T cell therapies and enables the patient’s own T cells to expand, potentially contributing to a lasting anti-tumor effect. Unlike other cell therapies which require hospitalization and close monitoring, multiTAA-specific T cells are designed to be administered in an outpatient setting.