A Double-blind Placebo-controlled Randomized Trial Evaluating the Efficacy and Safety of a Novel HSP90 Inhibitor (RGRN-305) in the Treatment of Moderate to Severe Hidradenitis Supppurativa.

NCT05286567 | Completed Phase 1 DMC

• 2 other identifiers: RGRN-305-0022021-000881-13
• Study Type: interventional
• Target: 15
• Locations: 1 country
• Sites: 1

Brief Summary

This is a 16-week treatment, randomized, double-blind, proof-of-concept study designed to assess the safety and efficacy of RGRN-305 compared to placebo for use in future efficacy Phase 2 trials. Male or female subjects aged 18 years or older with moderate to severe hidradenitis suppurativa will be included in this study. Objectives are to determine the efficacy and safety of RGRN-305 in patients with moderate to severe hidradenitis supppurativa.

Conditions

Hidradenitis Suppurativa

Outcome Measures

Primary Outcomes (1)

• Percentage of subjects achieving Hidradenitis Suppurativa Clinical Response 50 (HiSCR-50) score

  Week 16

Secondary Outcomes (9)

• Percentage of subjects with Hidradenitis Suppurativa Physician's Global Assessment (HS-PGA) scores of clear or minimal

  Week 2, 4, 8, 12, 14, 16, and 20.

• Percentage of subjects achieving HiSCR-50, HiSCR-75, and HiSCR-90

  Week 2, 4, 8, 12, 14, 16, and 20.

• Changes from Baseline in the Dermatology Life Quality Index (DLQI) total score

  Week 4, 8, 12, 16, and 20.

• Changes from Baseline in the Pain Numerical Ranging score

  Weeks 4, 8, 12, 16, and 20

• Change and percent change from Baseline in lesion counts (abscess count, inflammatory nodule count, AN count, and draining tunnel count).

  Week 2, 4, 8, 12, 14, 16, and 20.

Study Arms (2)

RGRN-305

EXPERIMENTAL

1 tablet of 250mg RGRN-305 once daily for 16 weeks

Drug: RGRN-305

Placebo

PLACEBO COMPARATOR

1 tablet of placebo once daily for 16 weeks

Drug: Placebo

Interventions

RGRN-305 DRUG

Heat shock protein 90 inhibitor

RGRN-305

Placebo DRUG

Placebo (blinded)

Placebo

Eligibility Criteria

• Age: 18 Years - 99 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Subjects will be eligible to be enrolled in the study if they meet all of the following criteria at the Screening and Baseline (Day 0) Visits, unless specified otherwise:
• Men or women aged 18 years or older at the time of consent.
• Subject has a history of onset of hidradenitis suppurativa for at least 6 months prior to Baseline (Day 0) Visit.
• Subject has hidradenitis suppurativa with at least 5 inflammatory nodules or abscesses (total AN count) in at least 2 distinct anatomic areas, both at Screening and Baseline (Day 0) Visits. Furthermore, one additional inflammatory nodule must be present for collection of skin biopsies.
• Subjects (women and men) involved in any sexual intercourse that could lead to pregnancy must agree to use an effective contraceptive method from at least 4 weeks before Baseline (Day 0) until at least 4 weeks after the last study product administration for the duration of the study. Effective contraceptive methods are: systemic hormonal contraceptives (oral contraceptive, patch, vaginal ring, injectables, or implants), intrauterine devices, vasectomy, or barrier methods of contraception in conjunction with spermicide. Hormonal contraceptives must be on a stable dose for at least 4 weeks before Baseline (Day 0).
• Note: Woman of non-childbearing potential are as follows:
• Women who have had surgical sterilization (hysterectomy, bilateral oophorectomy, bilateral salpingectomy, or bilateral tubal ligation).
• Women ≥ 60 years of age.
• Women \> 40 and \< 60 years of age who have had a cessation of menses for at least 12 months and a follicle-stimulating hormone (FSH) test confirming non-childbearing potential (FSH ≥ 40 mIU/mL) or cessation of menses for at least 24 months without FSH levels confirmed.
• Protocol RGRN-305 - Safety and Efficacy of RGRN-305 in HS Page 13 of 61 Protocol version 3.2: 13 September 2021
• Women of childbearing potential must have a negative serum pregnancy test at screening and negative urine pregnancy test at Baseline (Day 0).
• Subject must have negative tuberculosis (TB) infection tests. Subjects will be evaluated for latent TB infection with a purified protein derivative (PPD) test, T-spot test or a Quantiferon Gold test, and with a chest x-ray, if one has not been performed in the last 6 months. Subject who demonstrates evidence of latent TB infection (either PPD ≥ 5 mm of induration or positive Quantiferon Gold or T-spot test, irrespective of Bacillus Calmette-Guérin (BCG) vaccination status and negative chest x-rays findings for active TB, or suspicious chest x-ray findings) will not be allowed to participate in the study.
• Subject must be willing to participate and must be capable of giving informed consent, and the consent must be obtained prior to any study-related procedures.

You may not qualify if:

• Female subject who is breastfeeding, pregnant, or who is planning a pregnancy during the study.
• Subject has a history of skin disease or presence of a skin condition that, in the opinion of the investigator, would interfere with the study assessments.
• Subject is known to have immune deficiency or is immunocompromised.
• Subject has a history of cancer or lymphoproliferative disease within 5 years prior to Baseline (Day 0). Subjects with successfully treated non-metastatic cutaneous squamous cell or basal cell carcinoma and/or localized carcinoma in situ of the cervix are not to be excluded.
• Subject has had a major surgery within 8 weeks prior to Baseline (Day 0) or has a major surgery planned during the study.
• Subject has any clinically significant medical condition including ongoing infections, or physical/laboratory/ECG/vital signs abnormality that would, in the opinion of the investigator, put the subject at undue risk or interfere with interpretation of study results.
• Subject has alanine aminotransferase (ALT) or aspartate aminotransferase (AST) values ≥ 2 times the upper limit of normal (ULN) at Screening.
• Subject has absolute neutrophil count ≤ 1.5 X 109/L or platelet count ≤ 100 X 109/L at Screening.
• Subject has a history of clinically significant anemia or hemoglobin (Hgb) value ≤ 10 g/dL (6.21 mmol/dL) at Screening.
• Subject has a creatine clearance ≤ 60 mL/min at Screening (calculated with Cockcroft-Gault formula).
• Subject with positive results for hepatitis B surface antigens (HBsAg), anti-hepatitis B core antibodies (anti-HBc), hepatitis C virus (HCV), or human immunodeficiency virus (HIV).
• Subject has a known or suspected allergy to RGRN-305 or any component of the investigational product.
• Subject has a history of clinically significant drug or alcohol abuse in the last year prior to Baseline (Day 0) Visit.
• Subject is currently receiving an investigational product or device or has received one within 4 weeks prior to Baseline (Day 0) Visit.
• Subject has received a live attenuated vaccine within 4 weeks prior to Baseline (Day 0) Visit or plan to receive a live attenuated vaccine during the study and up to 1 month after the last study drug administration.

Sponsors & Collaborators

• Aarhus University Hospital: lead

Study Sites (1)

Aarhus University Hospital

Aarhus, 8200, Denmark

Location

Related Publications (1)

• Ben Abdallah H, Bregnhoj A, Emmanuel T, Ghatnekar G, Johansen C, Iversen L. Efficacy and Safety of the Heat Shock Protein 90 Inhibitor RGRN-305 in Hidradenitis Suppurativa: A Parallel-Design Double-Blind Trial. JAMA Dermatol. 2024 Jan 1;160(1):63-70. doi: 10.1001/jamadermatol.2023.4800.

  PMID: 38055242 DERIVED

MeSH Terms

Conditions

Hidradenitis Suppurativa

Condition Hierarchy (Ancestors)

Skin Diseases, Bacterial; Bacterial Infections; Bacterial Infections and Mycoses; Infections; Skin Diseases, Infectious; Suppuration; Skin Diseases; Skin and Connective Tissue Diseases; Hidradenitis; Sweat Gland Diseases

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: RANDOMIZED
• Masking: QUADRUPLE
• Who Masked: PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: M.D.

Study Record Dates

• First Submitted: March 10, 2022
• First Posted: March 18, 2022
• Study Start: September 1, 2021
• Primary Completion: August 29, 2022
• Study Completion: August 29, 2022
• Last Updated: January 31, 2023

Record last verified: 2023-01

Locations

DK (1)