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Primary Haemophagocytic LymphohistiocytosisPhase 2/3NCT01818492

Study to Investigate Safety, Efficacy of an Anti-IFNγ mAb in Children With Primary Haemophagocytic Lymphohistiocytosis

A Phase 2/3 study testing NI-0501 in people with Primary Haemophagocytic Lymphohistiocytosis, run by Swedish Orphan Biovitrum at 20 sites in 6 countries.

Completed

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

Official record
Search all trials

Trial summary

The purpose of this study is to assess the safety, tolerability and efficacy of a new drug aimed at controlling disease activity in patients diagnosed with primary haemophagocytic lymphohistiocytosis. Read more about this study

Who is it for?
Ages Up to 18 years
What is being tested?
NI-0501
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
45 participants
Where
20 sitesin 6 countries
Study dates
Jul 2013to Jan 2019
Phase
Phase 2/3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 Up to 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Gender: male and female
  • Age: up to and including 18 years at diagnosis of Haemophagocytic Lymphohistiocytosis
  • Primary HLH patients
  • Patient (if ≥ 18 years old), or patient's legal representative(s) must have signed informed consent

Who cannot join

  • Diagnosis of secondary Haemophagocytic Lymphohistiocytosis consequent to a proven rheumatic or neoplastic disease.
  • Body weight < 3 kg.
  • Patients treated with biologics within a specific timeframe
  • Active Mycobacteria, Histoplasma Capsulatum, Shigella, Salmonella, Campylobacter and Leishmania infections.
  • Presence of malignancy.
  • Concomitant disease or malformation severely affecting the cardiovascular, pulmonary, liver or renal function

Trial locations and contacts

20 sites in 6 countries.

20 sites in 6 countries

United States8 sites
  • Children's Healthcare of Atlanta

    Atlanta, Georgia, 30329

  • Children's Hospital Colorado

    Aurora, Colorado, 80045-7106

  • Dana-Farber Cancer Institute (DFCI)

    Boston, Massachusetts, 02115

  • University of North Carolina at Chapel Hill

    Chapel Hill, North Carolina, 27599

  • Cincinnati Children's Hospital - Division of Immunobiology - Department of Pediatrics

    Cincinnati, Ohio, 45229-3039

  • Texas Children's Cancer Center

    Houston, Texas, 77030

  • Primary Children's Hospital

    Salt Lake City, Utah, 84113

  • Alfred I. duPont Hospital for Children - Nemours Center for Cancer and Blood Disorders - Division of Pediatric Hematology Oncology

    Wilmington, Delaware, 19803

Other trials in United States

Italy6 sites
  • Azienda Ospedaliero Universitaria Meyer

    Florence, 50139

  • Istituto Giannina Gaslini

    Genoa, 16147

  • Azienda Ospedaliera San Gerardo

    Monza, 20900

  • Azienda Ospedaliera Padova - Clinica di Oncoematologia Pediatrica

    Padua, 35128

  • Ospedale Pediatrico Bambino Gesu'

    Roma, 00165

  • Ospedale Donna Bambino - U.O.C. Oncoematologia Pediatrica

    Verona, 37126

Other trials in Italy

Spain3 sites
  • Hospital Sant Joan de Déu

    Barcelona, 08950

  • Hospital Universitario Vall d'Hebron

    Barcelona, 119-129

  • Hospital Universitario Niño Jesús

    Madrid, 28009

Other trials in Spain

Germany1 site
  • University Children's Hospital

    Münster, 48149

Other trials in Germany

Sweden1 site
  • Karolinska University Hospital

    Stockholm, 17176

Other trials in Sweden

United Kingdom1 site
  • Great Ormond Street Hospital - Department of Haematology

    London, WC1N 3JH

Other trials in United Kingdom

About this study

Official title: A Phase 2/3 Open-label Single Arm Multicentre Study to Assess Safety Tolerability Pharmacokinetics and Efficacy of i.v. Administrations of NI-0501 an Anti-IFNγ mAb in Paediatric Patients With Primary Haemophagocytic Lymphohistiocytosis

The purpose of this study is to assess the safety, tolerability and efficacy of a new drug aimed at controlling disease activity in patients diagnosed with primary haemophagocytic lymphohistiocytosis. The new drug can be administered as the first-line therapy, to patients not previously treated with the current standard of care, or can be given to patients who have either failed or were unable to tolerate the current standard of care. Administration will be on top of a glucocorticosteroid, which is usually part of the current recommended treatment.

Read the detailed description

The purpose of this study is to assess the safety, tolerability and efficacy of a new drug aimed at controlling disease activity in patients diagnosed with primary haemophagocytic lymphohistiocytosis. The new drug can be administered as the first-line therapy, to patients not previously treated with the current standard of care, or can be given to patients who have either failed or were unable to tolerate the current standard of care. Administration will be on top of a glucocorticosteroid, which is usually part of the current recommended treatment.

All participants in the NI-0501-04 study (NCT01818492) were invited to participate in the long-term follow-up study NI-0501-05 (NCT02069899). For the primary completion date, mentioned here, we refer to the NI-0501-04 study, even though in accordance with the NI-0501-04 study objectives, namely the assessment of long-term efficacy and safety endpoints, the study analyses also included data collected in the long-term follow-up study NI-0501-05. Hence these data are reported together. Study NI-0501-05 accepts patients from NI-0501-04 and NI-0501-06. Data collection for the patients from NI-0501-04 is completed.

The primary efficacy and safety analyses are based on the regulatory cut-off date of 20 July 2017. Refer to the publication in N Engl J Med 2020 May 7; 382 (19):1811-1822. Follow-on analyses have been conducted on all patients enrolled in the study, i.e. including the patients enrolled after the cut-off date of 20 July 2017. The results reported here refer to the totality of the 45 patients enrolled.

Being tested
NI-0501
Keywords
Emapalumab
Medical subject headings
Lymphohistiocytosis, Hemophagocytic

What participants receive

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

  • NI-0501Biological

Study groups in NCT01818492
Study groupRoleWhat they receive
NI-0501ExperimentalNI-0501 administered by IV infusion at a starting dose of 1 mg/kg.
Receives: Biological: NI-0501

What is being measured

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

  1. Overall Response Rate (ORR) Second Line

    Achievement of either Complete (CR) or Partial Response (PR), or HLH Improvement (HI) at End of Treatment of Study NI 0501-04 (EOT 04), based on pre-specified algorithm.

    CR: no fever, normal spleen size, no cytopenia (ANC ≥ 1.0x109/L and platelet count ≥ 100x109/L), no hyperferritinemia (serum ferritin <2000 μg), no coagulopathy (normal D-dimer and/or fibrinogen >150 mg/dL), no neurological and CSF abnormalities attributed to HLH, no sustained worsening of sCD25.

    PR: at least 3 HLH clinical and laboratory criteria (including CNS abnormalities) met the CR criteria, no progression of other aspects of HLH disease pathology.

    HI: improvement (>50% change from baseline) of at least 3 HLH clinical and laboratory criteria (including CNS involvement).

    Measured: End of Treatment (3 days after the last infusion of emapalumab in study NI-0501-04, occurring between 4 and 8 weeks)

  2. Overall Response Rate (ORR) All Treated

    Achievement of either Complete (CR) or Partial Response (PR), or HLH Improvement (HI) at End of Treatment of Study NI 0501-04 (EOT 04), based on pre-specified algorithm.

    CR: no fever, normal spleen size, no cytopenia (ANC ≥ 1.0x109/L and platelet count ≥ 100x109/L), no hyperferritinemia (serum ferritin <2000 μg), no coagulopathy (normal D-dimer and/or fibrinogen >150 mg/dL), no neurological and CSF abnormalities attributed to HLH, no sustained worsening of sCD25.

    PR: at least 3 HLH clinical and laboratory criteria (including CNS abnormalities) met the CR criteria, no progression of other aspects of HLH disease pathology.

    HI: improvement (>50% change from baseline) of at least 3 HLH clinical and laboratory criteria (including CNS involvement).

    Measured: End of Treatment (3 days after the last infusion of emapalumab in study NI-0501-04, occurring between 4 and 8 weeks)

  3. Overall Response Rate (ORR) Follow-on Analysis Set:

    Achievement of either Complete (CR) or Partial Response (PR), or HLH Improvement (HI) at End of Treatment of Study NI 0501-04 (EOT 04), based on pre-specified algorithm.

    CR: no fever, normal spleen size, no cytopenia (ANC ≥ 1.0x109/L and platelet count ≥ 100x109/L), no hyperferritinemia (serum ferritin <2000 μg), no coagulopathy (normal D-dimer and/or fibrinogen >150 mg/dL), no neurological and CSF abnormalities attributed to HLH, no sustained worsening of sCD25.

    PR: at least 3 HLH clinical and laboratory criteria (including CNS abnormalities) met the CR criteria, no progression of other aspects of HLH disease pathology.

    HI: improvement (>50% change from baseline) of at least 3 HLH clinical and laboratory criteria (including CNS involvement).

    Measured: End of Treatment (3 days after the last infusion of emapalumab in study NI-0501-04, occurring between 4 and 8 weeks)

  4. Overall Response Rate (ORR) at End of Treatment in Study NI-0501-04 (EOT 04) Follow-on Analysis Set: All Treated

    Achievement of either Complete (CR) or Partial Response (PR), or HLH Improvement (HI) at End of Treatment of Study NI 0501-04 (EOT 04), based on pre-specified algorithm.

    CR: no fever, normal spleen size, no cytopenia (ANC ≥ 1.0x109/L and platelet count ≥ 100x109/L), no hyperferritinemia (serum ferritin <2000 μg), no coagulopathy (normal D-dimer and/or fibrinogen >150 mg/dL), no neurological and CSF abnormalities attributed to HLH, no sustained worsening of sCD25.

    PR: at least 3 HLH clinical and laboratory criteria (including CNS abnormalities) met the CR criteria, no progression of other aspects of HLH disease pathology.

    HI: improvement (>50% change from baseline) of at least 3 HLH clinical and laboratory criteria (including CNS involvement).

    Measured: End of Treatment (3 days after the last infusion of emapalumab in study NI-0501-04, occurring between 4 and 8 weeks)

Secondary outcomes (7)
  1. Time to Response

    Time from the date of the first dose of emapalumab to first achievement of response (at least HLH improvement)

    Measured: Assessed up to End of Treatment (3 days after the last infusion of emapalumab in study NI-0501-04, occurring between 4 and 8 weeks)

  2. Durability of First Response

    Maintenance of response achieved any time during the study

    Measured: Assessed up to End of Treatment (3 days after the last infusion of emapalumab in study NI-0501-04, occurring between 4 and 8 weeks)

  3. Overall Survival

    Number of patients being alive at end of treatment or at week 8, pending on which comes first.

    Measured: Time from the date of first dose to last dose, or 8 weeks after first dose.

  4. Number of Patients Able to Reduce Glucocorticoids

    Number of patients able to reduce glucocorticoids by 50% or more and between ≥30%-<50%, of baseline dose at EOT 04.

    Measured: End of Treatment (3 days after the last infusion of emapalumab in study NI-0501-04, occurring between 4 and 8 weeks.

  5. Cumulative Duration of Response

    Percent of treatment time in response from the first achievement of an Overall Response until HSCT conditioning, or End of Treatment 04/05 (if the patient did not have HSCT performed) Where applicable, data were collected in both NI-0501-04 and long-term follow-up study NI-0501-05.

    Measured: up to start of HSCT conditioning, whenever HSCT conditioning is scheduled (at least 4 weeks after treatment start), or End of Treatment 04/05 (if the patient did not have HSCT performed)

  6. Survival Pre-HSCT

    Time from the date of first dose to the date of death, expressed in Kaplan-Meier survival probability estimates. Patients who receive HSCT will be censored at that date; patients who did not receive HSCT will be censored at last date of contact.

    Where applicable, data were collected in both NI-0501-04 and long-term follow-up study NI-0501-05.

    Measured: Assessed up to HSCT, whenever HSCT occurred (up to approximately 6 months after treatment initiation)

  7. Survival Post-HSCT

    Time from the date of first dose to the date of death, expressed in Kaplan-Meier survival probability estimates. Patients without an event will be censored at last assessment date in either the NI-0501-04 or NI-0501-05 study. Patients who do not proceed to HSCT will be excluded from this analysis.

    Measured: Assessed up to Last Observation (up to 1 year after transplant, or up to approximately 18 months after treatment initiation)

Timeline

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

  1. First posted26 Mar 2013 (estimated)
  2. Study startJul 2013
  3. Primary completionJan 2019
  4. Study completionJan 2019

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
45 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01818492
Sponsor's protocol ID
NI-0501-04
Other IDs
2012-003632-23
Status last verified
Apr 2021
First submitted
21 Mar 2013
Last updated
21 Feb 2023
Data monitoring committee
Yes

Publications

  • Brossard P, Laveille C. Population Pharmacokinetics of the Anti-Interferon-Gamma Monoclonal Antibody Emapalumab: An Updated Analysis. Rheumatol Ther. 2024 Jun;11(3):869-880. doi: 10.1007/s40744-024-00669-y. Epub 2024 Apr 25.

    PubMed 38662147
  • Locatelli F, Jordan MB, Allen C, Cesaro S, Rizzari C, Rao A, Degar B, Garrington TP, Sevilla J, Putti MC, Fagioli F, Ahlmann M, Dapena Diaz JL, Henry M, De Benedetti F, Grom A, Lapeyre G, Jacqmin P, Ballabio M, de Min C. Emapalumab in Children with Primary Hemophagocytic Lymphohistiocytosis. N Engl J Med. 2020 May 7;382(19):1811-1822. doi: 10.1056/NEJMoa1911326.

    PubMed 32374962

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing NI-0501 in people with Primary Haemophagocytic Lymphohistiocytosis, run by Swedish Orphan Biovitrum at 20 sites in 6 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 4 inclusion and 6 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 21 Feb 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 20 sites in United States, Italy, Spain, Germany, Sweden and 1 more country. 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 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?

Yes. Results are posted in the registry (first posted 4 Sep 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Overall Response Rate (ORR) Second Line (time frame: End of Treatment (3 days after the last infusion of emapalumab in study NI-0501-04, occurring between 4 and 8 weeks)). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01818492, which also lists 2 linked publications.

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 21 Feb 2023.

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