C4 Therapeutics Outlines Strategic Milestones to Advance Cemsidomide as a Potential Best-in-Class IKZF1/3 Degrader and Discovery Strategy Focused on Novel Targets in Clinically Validated Pathways

On January 14, 2026 C4 Therapeutics, Inc. (C4T) (Nasdaq: CCCC), a clinical-stage biopharmaceutical company dedicated to advancing targeted protein degradation science, reported milestones through 2028 and highlighted recent achievements.

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"We begin 2026 with compelling opportunities ahead, anchored by cemsidomide’s path to become a foundational medicine for multiple myeloma by reaching patients across multiple lines of therapy. As we prepare to initiate two cemsidomide trials in the coming months, we believe the emerging data exploring the class in combination with BiTE therapies derisks our strategy to rapidly advance cemsidomide through registrational development," said Andrew Hirsch, president and chief executive officer of C4 Therapeutics. "We are equally excited about our new discovery strategy that leverages a decade of learnings in the TPD field as well as the strengths of our platform to address unmet needs for inflammation, neuro-inflammation and neuro-degenerative diseases by degrading novel targets that modulate validated inflammatory pathways. Our strong balance sheet provides cash runway through key inflection points, keeping us positioned to advance our portfolio and create transformative medicines for patients."

Anticipated Key Strategic Milestones
C4T’s vision is to become a fully integrated biopharmaceutical company leveraging the benefits of targeted protein degradation across drug discovery, clinical development and commercialization to create and deliver breakthrough therapies for patients. To achieve this vision, C4T’s strategy centers around rapidly advancing cemsidomide to become the IKZF1/3 degrader of choice across lines of therapy and progressing its early portfolio of high-value degraders pursuing novel targets. The following anticipated key strategic milestones through 2028 support this strategy.

Cemsidomide
Relapsed/Refractory Multiple Myeloma: Fourth Line or Later

In Q1 2026, initiate the Phase 2 MOMENTUM trial of cemsidomide and dexamethasone and complete enrollment within 12 months.
In mid-2026, present further analysis of the data from the ongoing Phase 1 trial of cemsidomide and dexamethasone.
In 2H 2027, present initial overall response rate (ORR) data for the MOMENTUM trial.
In mid-2028, present efficacy and safety for the MOMENTUM trial.
By year-end 2028, submit new drug application evaluating cemsidomide and dexamethasone for potential accelerated approval in fourth line or later.
Relapsed/Refractory Multiple Myeloma: Second Line or Later

In Q2 2026, initiate the Phase 1b trial of cemsidomide in combination with elranatamab and provide incremental updates throughout dose escalation.
In mid-2026, share the plan to initiate an additional Phase 1b trial to evaluate cemsidomide in combination with other anti-myeloma agents.
In mid-2027, present Phase 1b data from all cohorts evaluating cemsidomide in combination with elranatamab.
By early 2028, initiate the Phase 3 trial evaluating cemsidomide in combination with a BCMA BiTE.
Early Portfolio: CFT8919

In Q1 2026, utilize data from the Phase 1 dose escalation trial to inform ex-China clinical development.
Early Portfolio: Internal Discovery Projects Focused on Inflammation, Neuro-inflammation and Neuro-degenerative Diseases

By year-end 2028, deliver up to three investigational new drug applications.
Early Portfolio: Discovery Collaborations

Earn additional research milestones and potential licensing fees from collaborations with Merck KGaA, Darmstadt, Germany, Roche and Biogen.
By year-end 2026, deliver at least one development candidate to a collaboration partner.
By year-end 2026, advance existing collaborations toward key milestones.
2025 Achievements
Cemsidomide

Completed enrollment in the Phase 1 trial of cemsidomide and dexamethasone and presented data demonstrating that the two highest dose levels (75 µg and 100 µg) achieved a 40% and 53% ORR, respectively. This compelling anti-myeloma activity in a heavily pretreated patient population reinforces cemsidomide’s potential best-in-class profile.
Developed a regulatory path incorporating FDA feedback that positions cemsidomide to potentially receive two distinct accelerated approvals in (1) fourth line or later for cemsidomide and dexamethasone, and (2) second line or later for cemsidomide in combination with a BCMA BiTE.
Selected 100 µg dose for the MOMENTUM trial as the recommended Phase 2 dose after discussions with FDA.
CFT8919

Advanced the Phase 1 dose escalation trial in China with partner Betta Pharmaceuticals to generate data that will inform C4T’s next steps.
Internal Discovery Pipeline

Implemented new discovery strategy focused on developing degrader medicines for five novel targets that modulate three clinically validated pathways for inflammation, neuro-inflammation and neuro-degenerative diseases to potentially deliver new therapies with enhanced efficacy for patients with unmet needs. This strategy leverages C4T’s expertise in developing highly catalytic orally bioavailable degraders that penetrate the blood brain barrier to achieve high central nervous system exposures and compelling efficacy in central nervous system models as well as C4T’s ability to control targeted protein levels through finely tuned degrader kinetics.
Extended capabilities to identify molecular glue degraders for targets with and without G- and RT-loops by utilizing DNA-encoded library (DEL) technology.
About Cemsidomide
Cemsidomide is an investigational, orally bioavailable molecular glue degrader of IKZF1/3, transcription factors that drive multiple myeloma. Data from the Phase 1 trial, which has completed enrollment, show cemsidomide’s differentiated safety and tolerability profile and potentially class-leading anti-myeloma activity that support the potential for durable outcomes.

About the MOMENTUM Trial
MOMENTUM (Multi-center trial Of cemsidoMidE iN relapsed/refracTory mUltiple Myeloma) is a Phase 2, open-label, single-arm study to evaluate the efficacy, safety, pharmacokinetics and pharmacodynamics of cemsidomide in combination with dexamethasone in patients with relapsed/refractory multiple myeloma. Data from the Phase 1 trial identified 100 µg as the recommended Phase 2 dose. The primary endpoint is overall response rate per International Myeloma Working Group response criteria, as assessed by an independent review committee. Approximately 100 patients who have received at least three prior anti-myeloma regimens that must have included an IKZF1/3 degrader, a proteasome inhibitor, an anti-CD38 antibody, and a T-cell engager or CAR-T therapy will be enrolled in the trial. More information is available at clinicaltrials.gov (NCT07284758).

About Cemsidomide in Combination With Elranatamab (ELREXFIO)
The Phase 1b trial is designed to evaluate the safety, tolerability and preliminary efficacy of cemsidomide in combination with elranatamab, an FDA-approved B-cell maturation antigen CD3 targeted bispecific antibody. The study will evaluate different cemsidomide dose levels (beginning with 75 µg, with the opportunity to simultaneously explore 50 µg and 100 µg) in patients who have received one to four prior lines of therapy, which must have consisted of at least one IKZF1/3 degrader. Exclusion criteria for patients include those who have received prior treatment with a BCMA-directed T-cell engager or BCMA-directed CAR-T therapy. More information is available at clinicaltrials.gov (NCT07280013).

About Multiple Myeloma
Multiple myeloma (MM) is a rare blood cancer affecting plasma cells. Approximately 36,000 people in the United States are diagnosed with MM each year. Despite advances in treatment, MM remains incurable. Treatment combinations include IKZF1/3 degraders, which are established backbone therapies, across lines of therapy.

(Press release, C4 Therapeutics, JAN 14, 2026, View Source [SID1234662035])

BriaCell Therapeutics Announces Pricing of $30 million Public Offering

On January 13, 2026 BriaCell Therapeutics Corp. (Nasdaq: BCTX, BCTXL) (TSX: BCT) ("BriaCell" or the "Company"), a clinical-stage biotechnology company that develops novel immunotherapies to transform cancer care, reported the pricing of a best-efforts public offering of 5,366,726 units. Each unit consists of one common share (or pre-funded warrant ("Pre-Funded Warrant") in lieu thereof) and one warrant (the "Warrants"). Each unit is being sold to the public at a price of $5.59 per unit (inclusive of the Pre-Funded Warrant exercise price) for gross proceeds of approximately $30 million, before deducting placement agent fees and offering expenses. The Warrants included in the units have been approved for listing on the Nasdaq Capital Market and are expected to commence trading under the symbol "BCTXL" on January 14, 2026. Each Warrant is immediately exercisable, will entitle the holder to purchase one common share at an exercise price of $6.93 per share and will expire five years from the date of issuance. The common shares (or Pre-Funded Warrants) and Warrants can only be purchased together in the offering but will be issued separately.

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The offering is expected to close on January 15, 2026, subject to satisfaction of customary closing conditions. The Company is relying upon the exemption set forth in Section 602.1 of the TSX Company Manual, which provides that the TSX will not apply its standards to certain transactions involving eligible interlisted issuers on a recognized exchange, such as Nasdaq.

The Company intends to use the net proceeds from the offering to fund working capital requirements, general corporate purposes and the advancement of the Company’s business objectives.

ThinkEquity is acting as the sole placement agent for the offering.

A registration statement on Form S-1 (File No. 333-292388) relating to the securities was filed with the Securities and Exchange Commission ("SEC") on December 23, 2025, and became effective on January 13, 2026, and a related registration statement was filed pursuant to Rule 462(b) under the Securities Act of 1933, as amended, on January 13, 2026. This offering is being made only by means of a prospectus. Copies of the final prospectus, when available, may be obtained from ThinkEquity, 17 State Street, 41st Floor, New York, New York 10004. The final prospectus will be filed with the SEC and will be available on the SEC’s website located at View Source

This press release shall not constitute an offer to sell or a solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

(Press release, BriaCell Therapeutics, JAN 13, 2026, View Source [SID1234662206])

BriaCell Reports Sustained Complete Resolution of Lung Metastasis in Bria-OTS(TM) Patient

On January 13, 2026 BriaCell Therapeutics Corp. (Nasdaq: BCTX, BCTXW, BCTXZ) (TSX: BCT) ("BriaCell" or the "Company"), a clinical-stage biotechnology company developing novel immunotherapies to transform cancer care, reported the durable and sustained complete resolution of a lung metastasis in a patient with metastatic breast cancer (MBC) treated with Bria-OTS, BriaCell’s personalized off the shelf immunotherapy. The patient is hormone receptor-positive (HR+), HER2-negative.

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The first patient enrolled in the Bria-OTS study, a 78-year-old woman with advanced metastatic breast cancer and multiple prior treatment failures, achieved complete (100%) resolution of a lung metastasis following four doses of Bria-OTS single agent therapy. The complete response, initially observed at 2 months (previously reported), was subsequently confirmed at 4 months (previously reported), 6 months (previously reported), and now at 11 months. The patient received 17 cycles of Bria-OTS, completed 12 months of the study, and remains in survival follow-up.

The Phase 1 dose escalation portion of the study is complete and the Phase 2a portion, evaluating combination of Bria-OTS with an immune checkpoint inhibitor, is now underway.

"The sustained clinical response observed in this late-stage MBC patient, who had previously progressed through multiple prior treatments is remarkable," stated Neal S. Chawla MD, Director at the Sarcoma Oncology Center, Santa Monica, CA, and Principal Investigator for the Bria-OTS study. "We are excited to further evaluate Bria-OTS in combination with an immune checkpoint inhibitor in metastatic breast cancer."

"These clinical findings reinforce our confidence in the therapeutic potential and safety of the Bria-OTS platform," added Dr. William V. Williams, BriaCell’s President and CEO. "Our team remains committed to advancing our novel therapeutic approach with the goal of making a meaningful difference for patients with metastatic breast cancer, particularly those with limited treatment options."

About Bria-OTS

Bria-OTS is a next generation, off-the-shelf personalized immunotherapy based on BriaCell’s lead candidate Bria-IMT currently being evaluated in a Phase 1/2a study (ClinicalTrials.gov identifier: NCT06471673) in patients with metastatic recurrent breast cancer. The trial includes both monotherapy dose escalation and checkpoint inhibitor combination dose expansion cohorts. The Company has recently entered the dose expansion phase.

(Press release, BriaCell Therapeutics, JAN 13, 2026, View Source [SID1234662205])

Vivere Oncotherapies Announces >$10M Funding to Develop Targeted Therapies for Solid Tumors

On January 13, 2026 Vivere Oncotherapies, a UC Berkeley spin-out developing cancer therapies that activate the immune system to detect and destroy cancer cells in immunologically cold tumors, reported over $10M in funding from YK Bioventures, Pillar, Berkeley Frontier Fund, Freeflow Ventures and The National Cancer Institute. Leveraging technology that enables engineering of targeted immunotherapies, Vivere will develop transformative treatments for difficult-to-treat cancers that otherwise evade immune system detection and for which there are few effective treatments.

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Solid tumors such as colorectal and ovarian are among the most difficult cancers to treat. These tumors are characterized by their lack of immune-cell infiltration, making them resistant to conventional immunotherapies like checkpoint inhibitors. Despite decades of research, there has been limited success in cracking the code on cold tumors, leaving patients with few options and poor prognosis.

"Vivere’s goal is to empower the patients’ immune systems to fight off cancer. Our team is united by a belief that cold tumors are not inherently untreatable, just misunderstood," said Melissa Kotterman, Ph.D., CEO of Vivere Oncotherapies. "We’ve spent years building a platform capable of breaking through the immunological invisibility of these tumors. With the support of our investors, we’re now poised to bring a new generation of targeted immunotherapies to patients who currently have no effective options."

"Building Vivere’s platform has been about rethinking what’s possible in cancer therapy. From its early days, the vision was to build a platform that could finally unmask cold tumors to the immune system through improved delivery of targeted and safe therapies," said David Schaffer, Ph.D., Co-founder of Vivere Oncotherapies and Professor of Chemical and Biomolecular Engineering, Bioengineering, and Molecular and Cell Biology at UC Berkeley and Director of QB3 and Bakar Labs. "Our team’s rare combination of engineering, immunology, and translational expertise paired with our experience in building clinical-stage biotech companies gives us the tools to tackle problems others have deemed intractable."

(Press release, Vivere Oncotherapies, JAN 13, 2026, View Source [SID1234662034])

ESTEVE to Acquire TerSera Therapeutics’ Infusion Specialty Therapies Business Unit, Expanding U.S. Presence

On January 13, 2026 ESTEVE and TerSera Therapeutics LLC reported that they have entered into an agreement in which ESTEVE will acquire TerSera’s Infusion Specialty Therapies Business Unit (IST). This strategic acquisition enables ESTEVE to expand its U.S. presence, with two highly specialized on-market assets and a dedicated team of sales, marketing and medical professionals.

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TerSera’s IST business unit includes two specialty medications, Prialt (ziconotide intrathecal infusion) and Quzyttir (cetirizine hydrochloride injection). Prialt is the only FDA-approved, non-opioid agent indicated for the management of severe chronic pain in adult patients for whom intrathecal therapy is warranted, and who are intolerant of or refractory to other treatment, such as systemic analgesics, adjunctive therapies, or intrathecal morphine.1 Prialt is currently marketed in Europe by ESTEVE.2 Quzyttir is the first and only injectable second-generation H1 antihistamine approved by the FDA for the treatment of acute urticaria in adults and children six months of age and older.3

With this transaction, ESTEVE will obtain worldwide rights for Quzyttir in all territories (except for China) and consolidates its rights for Prialt worldwide.

Staffan Schüberg, ESTEVE’s Chief Executive Officer stated: "We are excited to welcome the Infusion Specialty Therapies Business Unit and look forward to welcoming TerSera’s talented team to ESTEVE. This acquisition perfectly aligns with our strategic vision of providing highly specialized solutions where there is a significant unmet medical need. By adding Quzyttir to our portfolio and expanding to the US market with Prialt, we not only strengthen our expertise in highly specialized therapies but also accelerate our expansion in the United States—the world’s largest pharmaceutical market."

"ESTEVE has been our long-term partner for Prialt in Europe. Their expertise and core areas of focus make them the ideal future owner for IST," said Edward Donovan, Chief Executive Officer of TerSera. "We believe this transaction provides an excellent home for Prialt and Quzyttir to continue the strong momentum we have established with these medicines, while we sharpen our focus on our core therapeutic areas of oncology and rare disease."

This deal reinforces ESTEVE’s growth in the United States, a growth that began with the acquisition in 2024 of a business specialized in rare and ultra-rare diseases in the areas of endocrinology and onco-endocrinology. ESTEVE’s highly specialized portfolio has been further strengthened by the subsequent expansion in 2025: licensing-in for Ex US a biologic product used to treat children and adolescents from 2 to 18 years-old who suffer from severe primary insulin-like growth factor 1 deficiency4; an adjuvant treatment being investigated in the U.S. and considered standard of care outside of the U.S. where it is approved for high-grade resectable non-metastatic osteosarcoma in patients aged between 2 and 30 years5 ; and a medicine that is used in adults and children above 5 years of age to treat aggressive and symptomatic medullary thyroid cancer.6

The current transaction is expected to close in the first quarter of 2026, subject to regulatory clearances.

Perella Weinberg Partners are the financial advisor to ESTEVE on this transaction, and Arnold & Porter are serving as legal counsel. Leerink Partners acted as the lead financial advisor to TerSera, and Kirkland & Ellis LLP is serving as legal counsel.

About PRIALT (Ziconotide Intrathecal Infusion)

PRIALT is a non-opioid intrathecal analgesic indicated for the management of severe chronic pain in patients for whom intrathecal therapy is warranted and who are intolerant of or refractory to other treatments. Derived from a marine snail peptide, ziconotide acts as a selective N-type calcium channel blocker, interrupting pain signal transmission in the spinal cord. Ziconotide is administered via continuous intrathecal infusion and is not associated with the risk of addiction or respiratory depression commonly seen with opioid therapies.1

IMPORTANT SAFETY INFORMATION

WARNING: NEUROPSYCHIATRIC ADVERSE REACTIONS

PRIALT is contraindicated in patients with a preexisting history of psychosis. Severe psychiatric symptoms and neurological impairment may occur during treatment with PRIALT. Monitor all patients frequently for evidence of cognitive impairment, hallucinations, or changes in mood or consciousness. Discontinue PRIALT therapy in the event of serious neurological or psychiatric signs or symptoms.

Contraindications

PRIALT is contraindicated in patients with:

A known hypersensitivity to ziconotide or any of its formulation components.
Any other concomitant treatment or medical condition that would render intrathecal administration hazardous, such as the presence of infection at the microinfusion injection site, uncontrolled bleeding diathesis, and spinal canal obstruction that impairs circulation of cerebrospinal fluid (CSF).
A pre-existing history of psychosis.
Warnings and Precautions

Cognitive and Neuropsychiatric Adverse Reactions

Severe psychiatric symptoms and neurological impairment may occur during treatment. Monitor all patients frequently for cognitive impairment, hallucinations, or changes in mood or consciousness. PRIALT may cause or worsen depression, with the risk of suicide in susceptible patients.

In clinical trials, 12% of patients reported hallucinations; other acute psychiatric events included paranoid reactions (3%), hostility (2%), delirium (2%), psychosis (1%), and manic reactions (0.4%).

Patients with pretreatment psychiatric disorders may be at increased risk. Management of psychiatric complications may need to include discontinuation of PRIALT, treatment with psychotherapeutic agents and/or short-term hospitalization.

In clinical trials, cognitive adverse reactions included confusion (33%), memory impairment (22%), speech disorder (14%), aphasia (12%), thinking abnormal (8%), and amnesia (1%). Cognitive impairment may appear gradually after several weeks of treatment. Reduce the dose of PRIALT or discontinue the use of PRIALT if signs or symptoms of cognitive impairment develop, but other contributing causes must also be considered. The cognitive effects of PRIALT are generally reversible within 2 weeks after drug discontinuation. The elderly (≥65 years) are at higher risk for confusion. Concomitant use of central nervous system (CNS) depressants with PRIALT may have additive effects.

Meningitis and Other Infections

Meningitis can occur due to inadvertent contamination of the microinfusion device and other means. In clinical trials, the rate of meningitis was 3% (40 cases) in the PRIALT group using either internal or external microinfusion devices and 1% (1 case) with placebo. In patients with external microinfusion devices and catheters, meningitis occurred in 38 out of 41 patients (93%), 37 of whom received PRIALT and one who received placebo. Patients, caregivers, and healthcare providers must be particularly vigilant for the signs and symptoms of meningitis including, but not limited to, fever, headache, stiff neck, altered mental status (e.g., lethargy, confusion, disorientation), nausea or vomiting, and occasionally seizures.

Strict aseptic procedures must be used during the preparation of the PRIALT solution and refilling of the microinfusion device.

Reduced Level of Consciousness

In clinical trials, 2% of PRIALT-treated patients became unresponsive or stuporous. If reduced levels of consciousness occur, discontinue PRIALT until the event resolves, and other etiologies (e.g., meningitis) must be considered.

Elevation of Creatine Kinase

In clinical trials, serum creatine kinase (CK) levels above the upper limit of normal (ULN) were reported in 40% of patients, with 11% of patients having CK levels >3 times ULN. Incidences were higher during the first 2 months of treatment. Serum CK should be monitored periodically. In the setting of new neuromuscular symptoms, evaluate patients, obtain CK measurements, and if symptoms continue and CK levels remain elevated or continue to rise, reduce the dose or discontinue the use of PRIALT.

Withdrawal From Opiates

PRIALT is not an opiate and cannot prevent or relieve the symptoms associated with the withdrawal of opiates. To avoid withdrawal syndrome when opiate withdrawal is necessary, do not abruptly reduce or withdraw opioid medications.

Driving and Operating Machinery

Use of PRIALT has been associated with cognitive impairment and decreased alertness/unresponsiveness. Caution patients against engaging in hazardous activities that require complete mental alertness or motor coordination.

Most Common Adverse Reactions

The most frequently reported adverse reactions (≥25%) in clinical trials (n=1254 PRIALT-treated patients) were dizziness, nausea, confusional state, and nystagmus. Slower titration of PRIALT may result in fewer serious adverse reactions and discontinuations for adverse reactions.

Indication

PRIALT (ziconotide) solution, intrathecal infusion is indicated for the management of severe chronic pain in adult patients for whom intrathecal (IT) therapy is warranted, and who are intolerant of or refractory to other treatment, such as systemic analgesics, adjunctive therapies, or IT morphine.

To report suspected adverse reactions, contact the FDA at 1-800-FDA-1088 or www.FDA.gov/medwatch. You may also contact TerSera Therapeutics at 1-844-334-4035 or [email protected].

Please see PRIALT Full Prescribing Information, including BOXED Warning.

About QUZYTTIR (Cetirizine Hydrochloride Injection)

QUZYTTIR is a second-generation intravenous antihistamine indicated for the treatment of acute urticaria in adults and children six months of age and older. As a selective H1 receptor antagonist, cetirizine works by blocking histamine activity, helping to rapidly relieve symptoms of allergic reactions. QUZYTTIR is administered via intravenous infusion and offers fast onset of action with less sedation compared to first-generation antihistamines.2

IMPORTANT SAFETY INFORMATION

Contraindications

Known hypersensitivity to QUZYTTIR or any of its ingredients, to levocetirizine, or hydroxyzine.

Warnings and Precautions

The occurrence of somnolence/sedation has been reported in some patients. Advise patients to exercise due caution when driving or operating potentially dangerous machinery. Avoid concurrent use of QUZYTTIR with alcohol or other CNS depressants because additional reduction in alertness and additional impairment of CNS performance may occur.

Adverse Reactions

The most common adverse reactions (incidence <1%) with QUZYTTIR are dysgeusia, headache, paresthesia, presyncope, dyspepsia, feeling hot, and hyperhidrosis.

The most common adverse reactions (incidence ≥2%) with chronic dosing of oral cetirizine hydrochloride in adults are somnolence, fatigue, dry mouth, pharyngitis and dizziness. Adverse reactions observed in pediatric patients with chronic use of oral cetirizine hydrochloride are headache, pharyngitis, abdominal pain, coughing, somnolence, diarrhea, epistaxis, bronchospasm, nausea, and vomiting.

Indication and Usage

QUZYTTIR is indicated for the treatment of acute urticaria in adults and children 6 months of age and older.

Limitations of Use: QUZYTTIR is not recommended in pediatric patients <6 years of age with impaired renal or hepatic function.

To report suspected adverse reactions, contact the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. You may also contact TerSera Therapeutics at 1-844-334-4035 or [email protected].

Please see QUZYTTIR Full Prescribing Information.

(Press release, Esteve, JAN 13, 2026, View Source [SID1234662033])