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Hoth Therapeutics Reports Positive Preclinical Safety Data for Cancer Fighting HT-KIT -- Dose-Dependent Liver Activity with No Observed Toxicity Supports IND Pathway

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Hoth Therapeutics (NASDAQ: HOTH) reported positive preclinical safety data for its cancer therapeutic candidate HT-KIT. The multi-dose study demonstrated dose-dependent liver activity with no observable toxicity, marking a significant milestone toward clinical trials. Key findings showed liver weight increased from 1.11g to 1.32g across dosing from 0 to 3.0 mg/kg, with no adverse effects on kidney, spleen, thymus, or other organs. The study validated HT-KIT's safety profile in vivo with no visible lesions or gross pathology. CEO Robb Knie emphasized these results support their advancement toward GLP studies and IND submission, highlighting the clear biological response without organ damage as a positive indicator for the drug's development pathway.
Hoth Therapeutics (NASDAQ: HOTH) ha riportato dati preclinici positivi sulla sicurezza del suo candidato terapeutico contro il cancro HT-KIT. Lo studio a dosi multiple ha mostrato un'attività epatica dipendente dalla dose senza tossicità osservabile, rappresentando un importante traguardo verso le sperimentazioni cliniche. I risultati principali hanno evidenziato un aumento del peso epatico da 1,11 g a 1,32 g con dosaggi da 0 a 3,0 mg/kg, senza effetti negativi su reni, milza, timo o altri organi. Lo studio ha confermato il profilo di sicurezza di HT-KIT in vivo, senza lesioni visibili o patologie macroscopiche. Il CEO Robb Knie ha sottolineato come questi risultati supportino il passaggio a studi GLP e alla presentazione dell'IND, evidenziando la risposta biologica chiara senza danni agli organi come indicatore positivo per lo sviluppo del farmaco.
Hoth Therapeutics (NASDAQ: HOTH) informó datos preclínicos positivos sobre la seguridad de su candidato terapéutico contra el cáncer HT-KIT. El estudio de dosis múltiples demostró una actividad hepática dependiente de la dosis sin toxicidad observable, marcando un hito importante hacia los ensayos clínicos. Los hallazgos clave mostraron un aumento del peso hepático de 1,11 g a 1,32 g con dosis de 0 a 3,0 mg/kg, sin efectos adversos en riñón, bazo, timo u otros órganos. El estudio validó el perfil de seguridad de HT-KIT in vivo sin lesiones visibles ni patología macroscópica. El CEO Robb Knie enfatizó que estos resultados respaldan su avance hacia estudios GLP y la presentación del IND, destacando la clara respuesta biológica sin daño a órganos como un indicador positivo para el desarrollo del fármaco.
Hoth Therapeutics(NASDAQ: HOTH)는 암 치료 후보물질 HT-KIT에 대한 긍정적인 전임상 안전성 데이터를 보고했습니다. 다회 투여 연구에서 용량 의존적 간 활성은 관찰되었으나 독성은 없었으며, 이는 임상 시험으로 나아가는 중요한 이정표입니다. 주요 결과로는 0에서 3.0 mg/kg 용량 범위에서 간 무게가 1.11g에서 1.32g으로 증가했으며, 신장, 비장, 흉선 및 기타 장기에 부작용이 없었습니다. 연구는 HT-KIT의 생체 내 안전성 프로필을 확인했으며, 육안 병변이나 거대 병리학적 이상이 없었습니다. CEO Robb Knie는 이러한 결과가 GLP 연구와 IND 제출로의 진행을 뒷받침하며, 장기 손상 없는 명확한 생물학적 반응이 약물 개발 경로에 긍정적인 신호임을 강조했습니다.
Hoth Therapeutics (NASDAQ : HOTH) a rapporté des données précliniques positives sur la sécurité de son candidat thérapeutique contre le cancer HT-KIT. L'étude à doses multiples a démontré une activité hépatique dépendante de la dose sans toxicité observable, marquant une étape importante vers les essais cliniques. Les résultats clés ont montré une augmentation du poids du foie de 1,11 g à 1,32 g pour des doses allant de 0 à 3,0 mg/kg, sans effets indésirables sur les reins, la rate, le thymus ou d'autres organes. L'étude a validé le profil de sécurité de HT-KIT in vivo, sans lésions visibles ni pathologie macroscopique. Le PDG Robb Knie a souligné que ces résultats soutiennent leur progression vers des études GLP et le dépôt de l'IND, mettant en avant la réponse biologique claire sans dommage aux organes comme un indicateur positif pour le développement du médicament.
Hoth Therapeutics (NASDAQ: HOTH) berichtete positive präklinische Sicherheitsdaten für seinen Krebswirkstoffkandidaten HT-KIT. Die Mehrfachdosisstudie zeigte eine dosisabhängige Leberaktivität ohne beobachtbare Toxizität und markiert damit einen wichtigen Meilenstein auf dem Weg zu klinischen Studien. Die wichtigsten Ergebnisse zeigten eine Zunahme des Lebergewichts von 1,11 g auf 1,32 g bei Dosierungen von 0 bis 3,0 mg/kg, ohne negative Auswirkungen auf Niere, Milz, Thymus oder andere Organe. Die Studie bestätigte das Sicherheitsprofil von HT-KIT in vivo ohne sichtbare Läsionen oder grobpathologische Veränderungen. CEO Robb Knie betonte, dass diese Ergebnisse die Fortschritte zu GLP-Studien und IND-Einreichung unterstützen und hob die klare biologische Reaktion ohne Organschäden als positives Zeichen für den Entwicklungsweg des Medikaments hervor.
Positive
  • Clear dose-dependent biological response demonstrated through liver weight increase
  • 100% clean safety profile with no observable toxicity across all tested organs
  • No adverse effects or visible lesions in any treated animal
  • Results support advancement to GLP toxicology studies and IND submission
Negative
  • Early-stage preclinical data - still requires completion of GLP studies and IND approval
  • Limited to safety data only - efficacy in cancer treatment not yet demonstrated

Insights

Hoth's HT-KIT shows promising preclinical safety with dose-dependent liver engagement and zero toxicity, advancing toward IND filing.

The preclinical data for Hoth's oncology candidate HT-KIT demonstrates two critical elements that investors should understand: dose-dependent biological response and clean safety profile. The observed liver weight increase (from 1.11g to 1.32g) across dosing levels (0 to 3.0 mg/kg) indicates the compound is actively engaging with hepatic tissue in a predictable manner - this is precisely what researchers want to see at this stage. More importantly, this engagement occurred without any observable toxicity in vital organs including kidney, spleen, and thymus, suggesting a potentially favorable therapeutic window.

From a drug development perspective, these findings represent a meaningful de-risking event. Many oncology candidates fail due to toxicity issues that emerge during development. The absence of gross pathology or visible lesions across all treatment groups positions HT-KIT well for the upcoming GLP (Good Laboratory Practice) toxicology studies, which are more rigorous and required for FDA submission. The c-KIT pathway that HT-KIT targets is implicated in multiple cancer types including gastrointestinal stromal tumors, melanoma, and certain leukemias, making this a potentially versatile therapeutic approach if successful in further development.

While these results are encouraging, it's important to contextualize that this remains early-stage data. The company must still complete formal GLP toxicology studies, submit an IND application, and receive FDA clearance before entering human clinical trials - each representing significant regulatory hurdles that many candidates fail to overcome.

HOTH ALERT: Hoth Therapeutics Reports Positive Preclinical Safety Data for HT-KIT — Dose-Dependent Activity, No Toxicity, IND on Deck

HOTH announces strong preclinical data for HT-KIT showing dose-dependent liver activity with zero observed toxicity – key milestone as the company prepares for IND filing.

Study Results:

  • Liver weight increased from 1.11g → 1.32g across 0 → 3.0 mg/kg
  • No adverse effects on kidney, spleen, or thymus
  • 100% clean safety profile — no visible lesions or gross pathology
  • Validates safety of HT-KIT in vivo

Robb Knie, CEO: "These results strengthen our confidence in HT-KIT as we advance toward clinical trials. A strong safety signal with dose responsiveness and no toxicity gives us a clear path forward."

NEW YORK, June 18, 2025 /PRNewswire/ -- Hoth Therapeutics, Inc. (NASDAQ: HOTH), a patient-focused biopharmaceutical company developing innovative therapeutics for rare and inflammatory diseases, today announced encouraging preclinical results from a multi-dose study of HT-KIT, its investigational oncology candidate targeting the c-KIT pathway.

The study demonstrated a clear dose-responsive effect on liver mass with no observable toxicity or organ pathology, reinforcing the favorable safety profile of HT-KIT as the Company prepares for further toxicology studies and regulatory advancement.

Key Preclinical Findings (HT-KIT):

  • Liver weight increased from 1.11g at 0 mg/kg to 1.32g at 3.0 mg/kg, consistent with pharmacological engagement.
  • Kidney and spleen weights remained stable, indicating no off-target or systemic toxicity.
  • Thymus and other critical organ weights were within normal range across all groups.
  • No gross pathology or visible lesions observed in any treated animal.

"These clean and compelling safety results validate our confidence in HT-KIT," said Robb Knie, CEO of Hoth Therapeutics. "A dose-dependent biological signal without organ damage strongly supports our plan to move forward with GLP studies and an IND submission."

Hoth Therapeutics expects to initiate GLP toxicology studies, with plans to submit an Investigational New Drug (IND) application soon after.

About Hoth Therapeutics, Inc.

Hoth Therapeutics is a clinical-stage biopharmaceutical company dedicated to developing innovative, impactful, and ground-breaking treatments with a goal to improve patient quality of life. We are a catalyst in early-stage pharmaceutical research and development, elevating drugs from the bench to pre-clinical and clinical testing. Utilizing a patient-centric approach, we collaborate and partner with a team of scientists, clinicians, and key opinion leaders to seek out and investigate therapeutics that hold immense potential to create breakthroughs and diversify treatment options. To learn more, please visit https://ir.hoththerapeutics.com/ .

Forward-Looking Statement

This press release includes forward-looking statements based upon Hoth's current expectations, which may constitute forward-looking statements for the purposes of the safe harbor provisions under the Private Securities Litigation Reform Act of 1995 and other federal securities laws, and are subject to substantial risks, uncertainties, and assumptions. These statements concern Hoth's business strategies; the timing of regulatory submissions; the ability to obtain and maintain regulatory approval of existing product candidates and any other product candidates we may develop, and the labeling under any approval we may obtain; the timing and costs of clinical trials, and the timing and costs of other expenses; market acceptance of our products; the ultimate impact of any health epidemic, on our business, our clinical trials, our research programs, healthcare systems, or the global economy as a whole; our intellectual property; our reliance on third-party organizations; our competitive position; our industry environment; our anticipated financial and operating results, including anticipated sources of revenues; our assumptions regarding the size of the available market, benefits of our products, product pricing, and timing of product launches; management's expectation with respect to future acquisitions; statements regarding our goals, intentions, plans, and expectations, including the introduction of new products and markets; and our cash needs and financing plans. There are a number of factors that could cause actual events to differ materially from those indicated by such forward-looking statements. You should not place reliance on these forward-looking statements, which include words such as "could," "believe," "anticipate," "intend," "estimate," "expect," "may," "continue," "predict," "potential," "project" or similar terms, variations of such terms, or the negative of those terms. Although the company believes that the expectations reflected in the forward-looking statements are reasonable, the company cannot guarantee such outcomes. Hoth may not realize its expectations, and its beliefs may not prove correct. Actual results may differ materially from those indicated by these forward-looking statements as a result of various important factors, including, without limitation, market conditions and the factors described in the section titled "Risk Factors" in Hoth's most recent Annual Report on Form 10-K and Hoth's other filings made with the U. S. Securities and Exchange Commission. All such statements speak only as of the date made. Consequently, forward-looking statements should be regarded solely as Hoth's current plans, estimates, and beliefs. Investors should not place undue reliance on forward-looking statements. Hoth cannot guarantee future results, events, levels of activity, performance, or achievements. Hoth does not undertake and specifically declines any obligation to update, republish, or revise any forward-looking statements to reflect new information, future events, or circumstances or to reflect the occurrences of unanticipated events, except as may be required by applicable law.

Investor Contact:
LR Advisors LLC
Email: investorrelations@hoththerapeutics.com
www.hoththerapeutics.com
Phone: (678) 570-6791

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SOURCE Hoth Therapeutics, Inc.

FAQ

What are the key findings from HOTH's preclinical safety study for HT-KIT?

The study showed dose-dependent liver activity with liver weight increasing from 1.11g to 1.32g, and importantly, demonstrated no toxicity or adverse effects on organs including kidney, spleen, and thymus.

How did HT-KIT perform in terms of safety in Hoth Therapeutics' preclinical trials?

HT-KIT demonstrated a 100% clean safety profile with no visible lesions or gross pathology, and showed no adverse effects on kidney, spleen, thymus, or other organs.

What is the next step for Hoth Therapeutics' HT-KIT development?

Hoth Therapeutics plans to initiate GLP toxicology studies and subsequently submit an Investigational New Drug (IND) application.

What is HT-KIT designed to treat?

HT-KIT is an investigational oncology candidate that targets the c-KIT pathway for cancer treatment.

What was the dosing range used in HOTH's preclinical study of HT-KIT?

The study tested doses ranging from 0 mg/kg to 3.0 mg/kg, with liver weight increasing from 1.11g to 1.32g across this range.
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