A Study With CIT-013 in HS Patients (Citylights)

Citryll BV

Status and phase: Enrolling; Phase 2

Conditions: Hidradenitis Suppurativa (HS)

Treatments: Drug: Placebo; Drug: CIT-013 high dose; Drug: CIT-013 medium dose

Study type: Interventional

Funder types: Industry

Identifiers

NCT06993233

CITRYLL003

Details and patient eligibility

About

The goal of this clinical trial is to learn if CIT-013 works to treat Hidradenitis Suppurativa in adults. It will also learn about the safety of CIT-013. The main questions it aims to answer are:

Does CIT-013 lower the disease activity of HS patients? What medical problems do participants have when receiving CIT-013? Researchers will compare CIT-013 to a placebo (a look-alike substance that contains no drug) to see if CIT-013 works to treat the symptoms of HS.

Participants will:

Take receive 50 or 100 mg CIT-013 or placebo every other week for 12 weeks Visit the clinic once every 2 weeks for checkups and tests Keep monitor their symptoms during this period

Enrollment: 96 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Male or female participants with HS of more than 6 months duration,
• 18 years of age at screening visit,
• Hidradenitis suppurativa lesions present in ≥ 2 distinct anatomic areas, one of which is Hurley Stage II or III (according to Hurley classification system),
• A total abscess and inflammatory nodule (AN) count of ≥ 5 at screening and Day 1 prior to enrollment/randomization,
• Participant must have had an inadequate response to oral antibiotics OR exhibited recurrence after discontinuation to, OR demonstrated intolerance to, OR have a contraindication to oral antibiotics for treatment of their HS,
• Total draining tunnel count less than 20

Exclusion criteria

- Participants for whom an approved therapy with demonstrated clinical benefit is indicated, available and expected to be tolerated, OR choose to proceed with standard of care treatment options over the IP (after being appropriately informed of the treatment options, risks, and benefits).

Any current and/or recurrent clinically significant skin condition in the treatment area other than HS,

• Prior treatment with a recombinant therapeutic protein during the 6 weeks before baseline

• Prior treatment with any of the following medications before baseline:

  1. Any other systemic therapy for HS (28 days before baseline)
  2. Any IV anti-infective therapy (14 days before baseline)

• History of malignancy with exception of non-melanoma skin cancer that has been excised and cured,

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

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96 participants in 3 patient groups, including a placebo group

CIT-013 high dose

Experimental group

Description:

6 SC injections with CIT-013 high dose

Treatment:

Drug: CIT-013 high dose

CIT-013 medium dose

Experimental group

Description:

6 SC injections with CIT-013 medium dose

Treatment:

Drug: CIT-013 medium dose

Placebo

Placebo Comparator group

Description:

6 SC injections with placebo

Treatment:

Drug: Placebo