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Rare DiseasesPhase 2/3GNETNCT04651439

Severe Bullous Drug Eruption and Filgrastim

A Phase 2/3 study testing Filgrastim in people with Rare Diseases and Toxic Epidermal Necrolyses, run by Hospices Civils de Lyon at 3 sites in France.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Toxic epidermal necrolysis (TEN) including Stevens Johnson (SJS) and Lyell syndromes represent the most severe drug eruptions. It is an allergic disorder caused by cytotoxic T lymphocytes, specific of drugs, responsible for the destruction of keratinocytes by apoptosis. Read more about this study

Who is it for?
Ages 6 years and older
Conditions the study is for
Rare Diseases, Toxic Epidermal Necrolyses
What is being tested?
Filgrastim
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
42 participants
Where
3 sitesFrance
Study dates
13 May 2022to 13 May 2026
Phase
Phase 2/3
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 6 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Patient aged of 6 years old or more, presenting SJS/TEN, drug or infectious origin proofed and very strongly suspected (indirect certainty argument), confirmed by evaluator.
  • SJS or TEN evolving since less than 7 days with a progression of the detachment or the eruption observed dating less than 48 hours.
  • Patient and/or have right able to understand the objectives of the trial and having given their written consent to participate (parents for minors, have right for patients in immediate life-saving emergency).
  • Patient registered with a social security scheme or benefiting from a similar scheme.
  • Pregnancy test beta HCG negative for women of childbearing age

Who cannot join

  • Patient weighing less than 20kg
  • Chronic myeloid pathology such as myeloid leukemia or AML (acute myeloid leukemia)
  • Thrombophilia or thrombotic pathology in progress
  • PNN (polymorphonuclear neutrophils) > 50.000/mm3 on the CBC (Complete Blood Count) during the inclusion visit
  • Administration of G-CSF or GM-CSF within 5 days of inclusion
  • Patient who received cyclosporine, anti-TNFalpha or intravenous immunoglobulins or lithium in the month prior the inclusion
Show all 13Show fewer
  • Pregnant or breastfeeding woman
  • Patient under protective measure (safeguard measure, curatorship, guardianship) or deprived of liberty
  • Patient in exclusion period after participation at other interventional clinical trial
  • Known hypersensitivity to the active substance (FILGRASTIM) or to the one of the excipients (glutamine acid, sorbitol E420, Polysorbate 80)
  • Patient presenting a known glucose intolerance or hereditary fructose intolerance
  • Patient with a traumatic brain injury less than 24 hours
  • Patient admitted with septic shock

Trial locations and contacts

3 sites in 1 country.

France3 sites, 3 recruiting
  • Département d'Anesthésie-Réanimation , Hôpital Edouard Herriot, Hospices Civils de Lyon

    Lyon, 69437

    Anne-Claire LUKASZEWICZ, MD

    Anne-Claire LUKASZEWICZ, MD

    Recruiting
  • Reference center for toxic bullous dermatoses and severe drug eruptions, Edouard Herriot Hospital, Hospices Civils de Lyon

    Lyon, 69437

    Benoit BEN SAID, MD, 472 117 211 ext. +33, benoit.ben-said@chu-lyon.fr

    Benoit BEN SAID, MD

    Recruiting
  • Service de Médecine Interne, Hôpital Edouard Herriot, Hospices Civils de Lyon

    Lyon, 69437

    Solène POUTREL, MD

    Solène POUTREL, MD

    Recruiting

Other trials in France

About this study

Official title: Evaluating the Therapeutic Efficacy of Filgrastim in Severe Bullous Drug Eruptions (Lyell and Stevens-Johnson Syndromes)

Toxic epidermal necrolysis (TEN) including Stevens Johnson (SJS) and Lyell syndromes represent the most severe drug eruptions. It is an allergic disorder caused by cytotoxic T lymphocytes, specific of drugs, responsible for the destruction of keratinocytes by apoptosis. Regulatory T cell (CD25 high CD4+), normally responsible for controlling the activation of cytotoxic T lymphocytes, have altered function. Despite the progress made in the pathophysiological understanding of TEN, there is currently no effective treatment.

The main symptom is bullous and skin peeling > 10% giving the appearance of great burns. The death rate is estimated between 30 and 40% due to visceral inflammatory injuries and bacterial superinfection. The risk of mortality is estimated during the initial treatment by calculating the SCORTEN (mortality>10% if SCORTEN>2, mortality>90% if SCORTEN>5). The morbidity is also very important (92% at 1 year), especially ophthalmologic with high risk of blindness...

Read more

The therapeutic potential of G-CSF (Granulocyte-Colony Stimulating Factor) in TEN is supported by several observations.

The G-CSF promotes skin healing. This has been shown in human burns, with a significant reduction in healing time under G-CSF. The mechanisms associate the growth factor effect on keratinocytes, macrophages stimulation and metalloprotease activity allowing tissue remodeling limiting sequels onset. Otherwise, healing altered in deficient G-CSF mice is corrected by the growth factor injection.

The G-CSF is an immunomodulator whose activities appear to justify use in TEN :

  • Polarization of immune response to Th2 non-cytotoxic (anti Th1),
  • Preferential differentiation of naive LT (T lymphocytes) in regulator LT (CD25 high CD4+) and mobilization of regulator LT of the spinal cord to altered tissues.

The G-CSF was used in a few cases of TEN with great efficacy. No data is available concerning sequels of SJS/TEN in treated patients.

This clinical trial program, by providing proof of the efficacy of filgrastim in SJS/TEN, should allow progress in care of this serious toxics diseases. In the future, it could thus reduce the significant morbidity of these syndromes with a high rate of sequelae.

Being tested
Filgrastim, Placebo
Keywords
Toxic Epidermal Necrolysis (TEN), Stevens-Johnson syndrome (SJS), Lyell's syndrome, Ganulocyte-Colony Stimulating Factor (G-CSF), Filgrastim, Randomized controlled trial (RCT)
Medical subject headings
Rare Diseases, Stevens-Johnson Syndrome

What participants receive

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

  • FilgrastimDrug

    Also called ZARZIO

    Injection of ZARZIO 30 MU/0,5mL and/or ZARZIO 48 MU/0,5mL, over a period of 5 consecutive days (1 injection per day during 30 minutes - - day 1 : set up standard treatment). The filgrastim solution will be diluted in 20 mL of 5% Glucose. The dose of ZARZIO administrated depends of the patient's weight :

    • 20 to < 30kg = 0,3 mL of ZARZIO 48 MU/0,5mL (subcutaneous route)
    • 30 to < 60kg = 0,5 mL of ZARZIO 30 MU/0,5mL (by IV)
    • 60 to < 90kg = 0,5 mL of ZARZIO 48 MU/0,5mL (by IV)
    • 90 to < 120kg = 2x0,5 mL of ZARZIO 30 MU/0,5mL (by IV)
    • 120 to 150kg = 0,5 mL of ZARZIO 30 MU/0,5mL + 0,5 mL of ZARZIO 48 MU/0,5mL (by IV)
    • > 150kg = 2x0,5 mL of ZARZIO 48 MU/0,5mL (by IV)
  • PlaceboDrug

    Also called GLUCOSE 5%

    Injection of 20 mL of Glucose 5% solution over a period of 5 consecutive days (1 injection per day during 30 minutes - day 1 : set up standard treatment). The dose given is equivalent to that used for filgrastim :

    • 20 to < 30kg = placebo not available because the injection must be done subcutaneously so the blind cannot be respected.
    • 30 to < 60kg = 20mL of Glucose 5% solution (by IV)
    • 60 to < 90kg = 20mL of Glucose 5% solution (by IV)
    • 90 to < 120kg = 20mL of Glucose 5% solution (by IV)
    • 120 to 150kg = 20mL of Glucose 5% solution (by IV)
    • > 150kg = 20mL of Glucose 5% solution (by IV)
Study groups in NCT04651439
Study groupRoleWhat they receive
FILGRASTIMExperimentalStandard symptomatic treatment of the SJS/NET (until the reepidermization of the patient) + ZARZIO@ (30 MU/0,5mL and/or 48 MU/0,5mL - solution of 20 ml diluted in GLUCOSE 5%) administrated by IV or subcutaneous route over a period of 5 consecutive days (1 injection per day during 30 minutes)
Receives: Drug: Filgrastim
PLACEBOPlacebo comparatorStandard symptomatic treatment of the SJS/NET (until the reepidermization of the patient) + 20 ml GLUCOSE 5% administrated by IV route over a period of 5 consecutive days (1 injection per day during 30 minutes)
Receives: Drug: Placebo

What is being measured

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

  1. Arrest of the SJS/NET progression at day 5

    Comparison between the 2 arms of the proportion of patients with arrest of progression of skin detachment defined by a peeled surface and/or bullous and/or associated at a NIKOLSKY sign determined according to the stable burn table - Evaluation done by the Outcomes Assessor and the adjudication committee.

    Measured: On day 5 (after 5 injections of ZARZIO or PLACEBO - D0: initiation of treatment)

Secondary outcomes (11)
  1. Arrest of the SJS/NET progression

    Comparison between the 2 arms of the time until the arrest of the SJS/NET progression defined by a peeled surface and/or bullous and/or associated at a NIKOLSKY sign determined according to the stable burn table - Evaluation done by the Outcomes Assessor and the adjudication committee.

    Measured: At day 3, day 7 and day 15

  2. Complete re-epidermization

    Comparison between the 2 arms of the time until the complete re-epidermization defined by the disappearance of skin rashes and return to normal skin. Evaluation done by the Outcomes Assessor and the adjudication committee.

    Measured: At day 3, day 5, day 7, day 15 and day 45

  3. Overall survival

    Comparison between the 2 arms of the overall survival

    Measured: Until 30 days

  4. Overall survival

    Comparison between the 2 arms of the overall survival

    Measured: Until 1 year

  5. Duration of hospitalization

    Comparison between the 2 arms of the number days of hospitalization corresponding to the duration of SJS/NET episode's hospitalization.

    Measured: 15 days (maximal of SJS/NET episode's hospitalization)

  6. Premature discontinuation of experimental treatment

    Number of clinical and biological adverse event leading to stop the filgrastim treatment (per patient, nature and grade of the AE (adverse event ) - repository CTCAE version 5.0)

    Measured: Between day 0 and day 5

  7. Adverse events

    Comparison between the 2 arms of the number of clinical and biological adverse event (by organ systems - repository CTCAE version 5.0)..

    Measured: Until 1 year

  8. Use of systemic corticosteroid therapy

    Study of the nature, cumulative doses and indications objectifying a corticosteroid prescription. A comparison between the 2 arms will be done.

    Measured: Between day 0 and day 15

  9. Evaluation of sequels

    Determination of the proportion of patients with at least one sequel among the following specialty : ophthalmology, stomatology/ORL(otorhinolaryngology), gastroenterology, gynecology, urology and psychiatry, researched during specialized consultations during the remote monitoring phase. A comparison between the 2 arms will be done.

    Measured: At day 45, day 60, day 90, day 180 and 1 year

  10. Quality of life evolution

    Quality of life evolution assessed with Dermatology Life Quality Index (DLQI) or Children's Dermatology Life Quality Index (CDLQI).

    DLQI is calculated by adding the score of each question, resulting in a maximum of 30 and a minimum of 0. The higher the score, the more quality of life is impaired.

    CDLQI is used in the same way. It is documented in 5 minutes. Each question is illustrated by a cartoon based on the theme of the question, making it more fun for younger children. The scoring for each question is "Very much"[Score = 3], "Quite a lot"[2], "Only a little"[1], "Not at all"[0], "Blank"[0], and Q7 - "prevented school"[3]. The 10 individual question scores are summed to provide a total CDLQI score. The maximum possible score is 30, indicating maximum impact on QoL.

    A comparison between the 2 arms will be done.

    Measured: At day 60, day 180 and 1 year

  11. Risk of developing Post Traumatic Stress Disorder (PTSD)

    Determination of the proportion of patients with high risk of developing PTSD measured with Impact of Event Scale Revised (IES-R) or Children's Revised Impact of Event Scale (CRIES).

    IES-R is a 22-item self-administered questionnaire that measures symptoms of intrusion, avoidance and over-arousal experienced during the past 7 days. Patients rate each item on a 0-5 point Likert scale. The total score, between 0 and 88, is obtained by adding all the ratings for each item: low risk (score less than 12), moderate (score between 12 and 34 inclusive) or at high risk (score strictly greater than 34) of developing PTSD.

    CRIES-13 is a revised scale to measure the impact of events on children from 8 years old. Items are rated on a 4-point scale, with scores of 0, 1, 3 and 5 points. The maximum score is 65. The score is obtained by adding the responses to each item. A score of 30 or more would be effective in screening for PTSD.

    A comparison between the 2 arms will be done.

    Measured: At day 0, day 7 and day 15

Timeline

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

  1. First posted3 Dec 2020
  2. Study start13 May 2022
  3. Primary completion18 May 2025 (estimated)
  4. Study completion13 May 2026 (estimated)

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 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
42 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04651439
Sponsor's protocol ID
69HCL19_0375
Acronym
GNET
Status last verified
May 2024
First submitted
25 Nov 2020
Last updated
8 May 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Filgrastim in people with Rare Diseases and Toxic Epidermal Necrolyses, run by Hospices Civils de Lyon at 3 sites in France.

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 5 inclusion and 13 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: status not confirmed, as of the sponsor's last update on 8 May 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in France. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

Results are not available in the source record.

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

Contact Benoit BEN SAID, MD (472 117 211 ext. +33, benoit.ben-said@chu-lyon.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Arrest of the SJS/NET progression at day 5 (time frame: On day 5 (after 5 injections of ZARZIO or PLACEBO - D0: initiation of treatment)). 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 8 May 2024.

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