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Study of HXN6005 in Healthy Participants and Patients With Moderate-to-Severe Atopic Dermatitis

19 augustus 2026 bijgewerkt door: Helixon Biotechnology (Suzhou) Co., Ltd

A Phase I/II, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Efficacy of HXN6005 in Healthy Participants and Patients With Moderate-to-Severe Atopic Dermatitis

This is a Phase I/II, multicenter, randomized, double-blind, placebo-controlled study evaluating HXN6005 in healthy participants and patients with moderate-to-severe atopic dermatitis (AD).

The study consists of three parts: Part A (single ascending dose in healthy participants), Part B (multiple ascending dose in AD patients), and Part C (multiple-dose efficacy and safety assessment in AD patients).

The primary objectives are to assess the safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD), and preliminary efficacy of HXN6005.

Studie Overzicht

Gedetailleerde beschrijving

Part A (Single Ascending Dose, SAD) is a randomized, double-blind, placebo-controlled, single-dose escalation design conducted in healthy participants. It includes two sequential dose cohorts. A total of 16 healthy participants are planned, with 8 participants per cohort (6 receiving HXN6005 and 2 receiving placebo). Participants receive a single subcutaneous injection of HXN6005 or placebo. All participants are followed for safety, PK, PD, and anti-drug antibody (ADA) assessments.

Part B (Multiple Ascending Dose, MAD) is a randomized, double-blind, placebo-controlled study conducted in patients with moderate-to-severe AD. Part B enrolls 16 patients across two dose cohorts, with 8 patients per cohort (6 receiving HXN6005 and 2 receiving placebo). Patients receive multiple subcutaneous injections of HXN6005 or placebo according to the study schedule.

Part C is a multicenter, randomized, double-blind, placebo-controlled study conducted in patients with moderate-to-severe AD. A total of 35 patients are planned to be randomized into two HXN6005 dose groups and one placebo group, receiving multiple subcutaneous doses according to the study schedule. Regular follow-up visits are conducted to collect efficacy data, safety data, and blood samples for assessment of systemic exposure, immunogenicity, and biomarkers.

Studietype

Ingrijpend

Inschrijving (Geschat)

67

Fase

  • Fase 2
  • Fase 1

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Locaties

    • Zhejiang
      • Hangzhou, Zhejiang, China, 310006

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen
  • Oudere volwassene

Accepteert gezonde vrijwilligers

Ja

Beschrijving

Inclusion Criteria:

  1. Participants must be able to understand and comply with the study requirements and voluntarily sign the informed consent form (ICF).
  2. (Healthy Participants) Male or female participants aged 18 to 55 years (inclusive) at the time of signing the ICF.
  3. (Healthy Participants) Male participants weighing ≥ 50.0 kg and female participants weighing ≥ 45.0 kg, with a body mass index (BMI) between 18.0 and 28.0 kg/m² (inclusive).
  4. (Patients with AD) Male or female participants aged 18 to 70 years (inclusive) .
  5. (Patients with AD) Participants must have documented AD history, moderate-to-severe disease, and inadequate response to topical therapy at screening.

Exclusion Criteria:

  1. Presence of any clinically significant disease at randomization, as judged by the investigator.
  2. Known or suspected allergy or intolerance to any component or excipient of HXN6005 injection or placebo.
  3. History of severe drug allergy or systemic anaphylactic reactions, such as anaphylactic shock, laryngeal edema, etc.
  4. Known or suspected history of immunosuppression, or history of invasive opportunistic infections, including infections that are unusually frequent, recurrent, or prolonged in duration as judged by the investigator, even after resolution of the infection.
  5. History of malignancy or malignant disease, with the exception of surgically excised cutaneous squamous cell carcinoma in situ, basal cell carcinoma, and cervical carcinoma in situ that have been in complete remission for more than 5 years without any evidence of recurrence.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Verdrievoudigen

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Part A Single Ascending Dose (SAD)
Participants will receive a single subcutaneous dose of HXN6005
Participants will be enrolled sequentially into one of two ascending dose cohorts and will receive a single subcutaneous dose of HXN6005.
Participants will be enrolled sequentially into one of two ascending dose cohorts and will receive multiple subcutaneous doses of HXN6005.
Participants will be enrolled in parallel into one of two dose cohorts and will receive multiple subcutaneous doses of HXN6005.
Placebo-vergelijker: Part A Placebo (SAD)
Participants will receive a single subcutaneous dose of placebo
Participants will be enrolled sequentially into one of two ascending dose cohorts and will receive a single subcutaneous dose of placebo.
Participants will be enrolled sequentially into one of two ascending dose cohorts and will receive multiple subcutaneous doses of placebo.
Participants will be enrolled in a single cohort and will receive multiple subcutaneous doses of placebo.
Experimenteel: Part B Multiple Ascending Dose (MAD)
Participants will receive multiple subcutaneous doses of HXN6005
Participants will be enrolled sequentially into one of two ascending dose cohorts and will receive a single subcutaneous dose of HXN6005.
Participants will be enrolled sequentially into one of two ascending dose cohorts and will receive multiple subcutaneous doses of HXN6005.
Participants will be enrolled in parallel into one of two dose cohorts and will receive multiple subcutaneous doses of HXN6005.
Placebo-vergelijker: Part B Placebo (MAD)
Participants will receive multiple subcutaneous doses of placebo
Participants will be enrolled sequentially into one of two ascending dose cohorts and will receive a single subcutaneous dose of placebo.
Participants will be enrolled sequentially into one of two ascending dose cohorts and will receive multiple subcutaneous doses of placebo.
Participants will be enrolled in a single cohort and will receive multiple subcutaneous doses of placebo.
Experimenteel: Part C Multiple Dose efficacy exploration
Participants will receive multiple subcutaneous doses of HXN6005
Participants will be enrolled sequentially into one of two ascending dose cohorts and will receive a single subcutaneous dose of HXN6005.
Participants will be enrolled sequentially into one of two ascending dose cohorts and will receive multiple subcutaneous doses of HXN6005.
Participants will be enrolled in parallel into one of two dose cohorts and will receive multiple subcutaneous doses of HXN6005.
Placebo-vergelijker: Part C Multiple Dose placebo-controlled
Participants will receive multiple subcutaneous doses of placebo
Participants will be enrolled sequentially into one of two ascending dose cohorts and will receive a single subcutaneous dose of placebo.
Participants will be enrolled sequentially into one of two ascending dose cohorts and will receive multiple subcutaneous doses of placebo.
Participants will be enrolled in a single cohort and will receive multiple subcutaneous doses of placebo.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Part A Adverse events
Tijdsspanne: Up to day 141
Incidence, severity, and causal relationship of Adverse Events (AEs)
Up to day 141
Part B Adverse Events
Tijdsspanne: Up to day 197
Incidence, severity, and causal relationship of Adverse Events (AEs)
Up to day 197
Part C Efficacy
Tijdsspanne: Up to day 113
Change from baseline to Week 16 in the Eczema Area and Severity Index (EASI; range 0-72; higher scores indicate more severe disease) total score among AD participants
Up to day 113

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Maximum Observed Plasma Concentration (Cmax)
Tijdsspanne: Up to day 197
The maximum (peak) observed drug concentration in plasma after administration
Up to day 197
Area Under the Plasma Concentration-Time Curve from Time 0 to the Last Quantifiable Concentration (AUC0-t)
Tijdsspanne: Up to day 197
Area under the plasma concentration-time curve from time 0 (pre-dose) to the time of the last measurable (quantifiable) plasma concentration
Up to day 197
Incidence of antidrug antibodies (ADA) against HXN6005
Tijdsspanne: Up to day 197
The incidence of treatment-emergent ADA against HXN6005 was assessed in serum samples
Up to day 197

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Geschat)

1 september 2026

Primaire voltooiing (Geschat)

1 oktober 2027

Studie voltooiing (Geschat)

1 januari 2028

Studieregistratiedata

Eerst ingediend

13 augustus 2026

Eerst ingediend dat voldeed aan de QC-criteria

19 augustus 2026

Eerst geplaatst (Werkelijk)

24 augustus 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

24 augustus 2026

Laatste update ingediend die voldeed aan QC-criteria

19 augustus 2026

Laatst geverifieerd

1 augustus 2026

Meer informatie

Termen gerelateerd aan deze studie

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

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