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Hidradenitis SuppurativaPhase 1NCT03972280

Safety and Pharmacokinetics of Repeat Doses of CSL324 in Subjects With Hidradenitis Suppurativa and Palmoplantar Pustulosis

A Phase 1 study testing Recombinant anti-granulocyte colony-stimulating factor (G-CSF) receptor monoclonal antibody in people with Hidradenitis Suppurativa and Palmoplantar Pustulosis, run by CSL Behring at 11 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Study CSL324_1002 will investigate the safety and pharmacokinetics of repeat doses of CSL324 in subjects with hidradenitis suppurativa and palmoplantar pustulosis. CSL324 is a novel, recombinant therapy that may treat diseases caused by increased numbers of neutrophils at sites of inflammation. Read more about this study

Who is it for?
Ages 18 to 75 years
What is being tested?
Recombinant anti-granulocyte colony-stimulating factor (G-CSF) receptor monoclonal antibody
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
39 participants
Where
11 sitesin 3 countries
Study dates
4 Jul 2019to 4 Oct 2022
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female subjects between 18 and 75 years of age, inclusive
  • Confirmed clinical diagnosis of moderate to severe HS as per International Hidradenitis Suppurativa Severity Score System (IHS4) guidelines (ie, IHS4 ≥ 4)
  • PPP differentiated from other forms of pustulosis
  • Psoriasis with a Palmoplantar Pustulosis Psoriasis Area and Severity Index (ppPASI) score of ≥ 12.
  • Subjects with HS only: inadequate response to at least a 3-month (90 days) trial of oral antibiotics for treatment of HS
  • Subjects with PPP only: confirmed clinical diagnosis of PPP at least 6 months before Screening and inadequate response to topical therapy, phototherapy, and / or previous systemic therapy for the treatment of PPP

Who cannot join

  • Treatment with any medications and therapies not permitted during the study.
  • History of myeloproliferative disease.
  • Malignancy within 5 years at Screening with the exception of nonmelanoma skin cancer, carcinoma in situ, or prostate cancer not requiring treatment.
  • Current, or a recent clinically significant history of, uncontrolled renal, hepatic(including currently active hepatitis B virus and / or hepatitis C virus), hematologic, endocrine, pulmonary, psychiatric, or cardiac disease, assessed as potentially having an effect on study outcomes as determined by the Investigator and / or Sponsor.
  • Congenital or acquired immunosuppressive condition(s), including human immunodeficiency virus infection.
  • Clinical signs of active infection and / or fever > 38°C during the 7 days before Day 1.
Show all 9Show fewer
  • Clinically significant abnormalities on physical examination, ECG, or laboratory assessments, or neutropenia (defined as absolute neutrophil count < 2.0 × 109/L) at Screening.
  • Subjects with PPP only: concurrent psoriasis vulgaris (not including scaly scalp and / or ears).
  • Subjects with HS only: > 20 draining fistulas."

Trial locations and contacts

11 sites in 3 countries.

11 sites in 3 countries

Australia4 sites
  • Holdsworth House Medical Practice

    Darlinghurst, 2010

  • Fremantle Dermatology

    Fremantle, 6160

  • The Royal Melbourne Hospital

    Parkville, 3052

  • Westmead Hospital

    Westmead, 2145

Other trials in Australia

Germany4 sites
  • Charité - Universitätsmedizin Berlin

    Berlin, 10117

  • St. Josef Hospital

    Bochum, 44791

  • Klinikum Darmstadt

    Darmstadt, 64283

  • Universitätsklinikum Carl Gustav Carus

    Dresden, 01307

Other trials in Germany

Denmark3 sites
  • Bispebjerg Hospital

    Copenhagen, 2400

  • Gentofte Hospital

    Hellerup, 2900

  • Zealand University Hospital

    Roskilde, 4000

Other trials in Denmark

About this study

Official title: A Multicenter, Open-label, 2-regimen, Repeat-dose Study to Assess the Safety and Pharmacokinetics of Intravenous CSL324 in Subjects With Hidradenitis Suppurativa and Palmoplantar Pustulosis

Study CSL324_1002 will investigate the safety and pharmacokinetics of repeat doses of CSL324 in subjects with hidradenitis suppurativa and palmoplantar pustulosis. CSL324 is a novel, recombinant therapy that may treat diseases caused by increased numbers of neutrophils at sites of inflammation.

Being tested
Recombinant anti-granulocyte colony-stimulating factor (G-CSF) receptor monoclonal antibody
Medical subject headings
Hidradenitis Suppurativa, Psoriasis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Recombinant anti-granulocyte colony-stimulating factor (G-CSF) receptor monoclonal antibodyBiological

    Also called CSL324

    Recombinant anti-G-CSF receptor monoclonal antibody is a preservative-free, sterile liquid formulation that is suitable for intravenous infusion

Study groups in NCT03972280
Study groupRoleWhat they receive
Dose Level 1 (HS)ExperimentalDose 1 of recombinant anti-G-CSF receptor monoclonal antibody administered intravenously to subjects with HS
Receives: Biological: Recombinant anti-granulocyte colony-stimulating factor (G-CSF) receptor monoclonal antibody
Dose Level 1 (PPP)ExperimentalDose 1 of recombinant anti-G-CSF receptor monoclonal antibody administered intravenously to subjects with PPP
Receives: Biological: Recombinant anti-granulocyte colony-stimulating factor (G-CSF) receptor monoclonal antibody
Dose Level 1 (Total)ExperimentalDose 1 of recombinant anti-G-CSF receptor monoclonal antibody administered intravenously to subjects with HS or PPP
Receives: Biological: Recombinant anti-granulocyte colony-stimulating factor (G-CSF) receptor monoclonal antibody
Dose Level 2 (HS)ExperimentalDose 2 of recombinant anti-G-CSF receptor monoclonal antibody administered intravenously to subjects with HS
Receives: Biological: Recombinant anti-granulocyte colony-stimulating factor (G-CSF) receptor monoclonal antibody
Dose Level 2 (PPP)ExperimentalDose 2 of recombinant anti-G-CSF receptor monoclonal antibody administered intravenously to subjects with PPP
Receives: Biological: Recombinant anti-granulocyte colony-stimulating factor (G-CSF) receptor monoclonal antibody
Dose Level 2 (Total)ExperimentalDose 2 of recombinant anti-G-CSF receptor monoclonal antibody administered intravenously to subjects with HS or PPP
Receives: Biological: Recombinant anti-granulocyte colony-stimulating factor (G-CSF) receptor monoclonal antibody

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of treatment-emergent adverse events (TEAEs)

    Measured: Up to 24 weeks

  2. TEAEs by severity

    Measured: Up to 24 weeks

  3. TEAEs by casuality

    Measured: Up to 24 weeks

  4. Incidence of adverse events of special interest (AESIs): Grade 3 and 4 neutropenia

    Measured: Up to 24 weeks

  5. AESIs: Grade 3 and 4 neutropenia by causality

    Measured: Up to 24 weeks

  6. Incidence of AESIs: Grade 3 and 4 infection

    Measured: Up to 24 weeks

  7. AESIs: Grade 3 and 4 infection by causality

    Measured: Up to 24 weeks

Secondary outcomes (12)
  1. Maximum concentration (Cmax) of CSL324 in serum for the first dose administered

    Measured: Up to 22 days after dose

  2. Time to maximum concentration (Tmax) of CSL324 in serum for the first dose administered

    Measured: Up to 22 days after dose

  3. Area under the concentration-time curve during a dosing interval (AUCtau) of CSL324 in serum for the first dose administered

    Measured: Up to 22 days after dose

  4. Cmax of CSL324 in serum for the last dose administered

    Measured: Up to 22 days after dose

  5. Tmax of CSL324 in serum for the last dose administered

    Measured: Up to 84 days after dose

  6. AUCtau of CSL324 in serum for the last dose administered

    Measured: Up to 22 days after dose

  7. Half life (t½) of CSL324 in serum for the last dose administered

    Measured: Up to 84 days after dose

  8. Total systemic clearance (CLtot) after intravenous dosing of CSL324 in serum for the last dose administered

    Measured: Up to 22 days after dose

  9. Volume of distribution after intravenous dosing during the terminal elimination phase ( Vz) of CSL324 in serum for the last dose administered

    Measured: Up to 22 days after dose

  10. Ctrough of CSL324 for each dose of CSL324 administered

    Measured: Up to 22 days after each dose

  11. Accumulation ratio for AUCtau (ratio between AUCtau of the last dose and of the first dose) and accumulation ratio for Cmax (ratio between Cmax of the last dose and of the first dose)

    Measured: Up to 22 days after each dose

  12. Presence of anti-CSL324 antibodies in serum

    Measured: Up to 168 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Jun 2019
  2. Study start4 Jul 2019
  3. Primary completion4 Oct 2022
  4. Study completion4 Oct 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
39 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03972280
Sponsor's protocol ID
CSL324_1002
Other IDs
2018-002871-17, 2018
Status last verified
May 2023
First submitted
31 May 2019
Last updated
26 May 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: CSL will consider requests to share Individual Patient Data (IPD) from systematic review groups or bona-fide researchers. For information on the process and requirements for submitting a voluntary data sharing request for IPD, please contact CSL at clinicaltrials@cslbehring.com. Applicable country specific privacy and other laws and regulations will be considered and may prevent sharing of IPD. If the request is approved and the researcher has executed an appropriate data sharing agreement, IPD that has been appropriately anonymized will be available.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Recombinant anti-granulocyte colony-stimulating factor (G-CSF) receptor monoclonal antibody in people with Hidradenitis Suppurativa and Palmoplantar Pustulosis, run by CSL Behring at 11 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 May 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites in Australia, Germany, Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of treatment-emergent adverse events (TEAEs) (time frame: Up to 24 weeks). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 May 2023.

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