ELA026 for Hemophagocytic Lymphohistiocytosis

Recruiting in Palo Alto (17 mi)

+13 other locations

Age: Any Age

Sex: Any

Travel: May Be Covered

Time Reimbursement: Varies

Trial Phase: Phase 2 & 3

Waitlist Available

Sponsor: Electra Therapeutics Inc.

No Placebo Group

Prior Safety Data

Approved in 1 Jurisdiction

Trial Summary

What is the purpose of this trial?

This trial tests ELA026, a medicine designed to reduce harmful inflammation, in patients with secondary hemophagocytic lymphohistiocytosis (HLH). The treatment aims to calm the overactive immune system by targeting specific cells causing the inflammation.

Do I have to stop taking my current medications for this trial?

The trial requires that you stop ongoing administration of any therapies used to treat HLH, except for dexamethasone. The protocol does not specify about other medications, so it's best to discuss with the trial team.

What data supports the idea that ELA026 for Hemophagocytic Lymphohistiocytosis is an effective treatment?

The available research does not provide specific data on the effectiveness of ELA026 for Hemophagocytic Lymphohistiocytosis. Instead, it discusses other treatments like dexamethasone and etoposide, which are commonly used and have shown some success, with 46.3% of patients achieving remission. However, the overall mortality rate remains high, indicating the need for more effective treatments. Without specific data on ELA026, it's unclear how it compares to these existing treatments. ^{1 2 3 4 5}

What safety data exists for ELA026 treatment in clinical trials?

The provided research does not contain specific safety data for ELA026 or its evaluation under different names. The studies focus on other treatments like tocilizumab, belimumab, and adalimumab for different conditions. ^{6 7 8 9 10}

Is the drug ELA026 a promising treatment for Hemophagocytic Lymphohistiocytosis?

ELA026 is considered a promising treatment for Hemophagocytic Lymphohistiocytosis because it addresses the severe immune system problems associated with the disease. This condition is rare and serious, often requiring complex treatments like stem cell transplants. ELA026 offers hope as it could potentially improve the management of this challenging disease. ^{1 2 11 12 13}

Research Team

Medical Director

Principal Investigator

Electra Therapeutics Inc.

Eligibility Criteria

This trial is for people aged 12 and older diagnosed with secondary hemophagocytic lymphohistiocytosis (HLH), a severe immune activation condition. Participants can be treatment-naive or have relapsed/refractory HLH, must meet specific diagnostic criteria, and be hospitalized. Those with primary HLH, uncontrolled conditions, recent investigational treatments or stem cell transplants are excluded.

Inclusion Criteria

I was 12 years or older when diagnosed with HLH.

I was diagnosed with HLH at an age that fits the study's requirements.

I have not received any treatment for my condition.

Exclusion Criteria

I had a stem cell transplant less than 100 days ago.

Any other significant concurrent, uncontrolled medical condition that in the opinion of the Investigator contraindicates participation in this study

I have received CAR T-Cell therapy within the last 3 months.

Treatment Details

Interventions

• ELA026 (Monoclonal Antibodies)

Trial Overview The study tests ELA026, an antibody aimed at reducing inflammation caused by myeloid and T cells in patients with secondary HLH. It evaluates the safety and effectiveness of this drug as well as how it's processed by the body.

Participant Groups

Group I: Part 2 ELA026 Experimental Treatment 1 Intervention

Cohort A and Cohort B: priming dose: 0.1 mg/kg IV on Day 1; loading dose 0.3 mg/kg IV on Days 2- 4, followed by twice weekly maintenance doses of 0.5 mg/kg (IV/SC) from Day 8 to Day 81.

Group II: Part 1 ELA026 Experimental Treatment 1 Intervention

Cohort 1: Single dose escalation up to 3.0 mg/kg IV or SC. Cohort 2: priming dose: 0.1 mg/kg IV on Day 1; 0.3 mg/kg IV on Day 2 - 4, followed by weekly maintenance doses of 1 mg/kg IV/SC from Day 8 to Day 81. Cohort 3: priming dose: 0.1 mg/kg IV on Day 1; 0.3 mg/kg IV on Days 2 - 4, followed by twice weekly maintenance doses of 0.5 mg/kg IV/SC from Day 8 to Day 81.

Who Is Running the Clinical Trial?

Electra Therapeutics Inc.

Lead Sponsor

Trials

2

Recruited

250+

Findings from Research

In a retrospective study of 66 patients with hemophagocytic lymphohistiocytosis (HLH), the overall mortality rate was 45.9%, highlighting the severe prognosis associated with this rare syndrome.

The study identified lymphoma as the most common cause of HLH, with advanced age and the presence of severe cytopenias linked to poorer outcomes, confirming and expanding upon existing literature on the disease.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

[Hemophagocytic lymphohistiocytosis: A retrospective analysis of 66 patients]. Thiebaut, L., Pasquier, G., Theret, S., et al.[2023]

In a study of 94 children, serum levels of soluble CD163 were found to be significantly elevated in those with hemophagocytic lymphohistiocytosis (HLH), indicating its potential as a diagnostic marker for this condition, especially in EBV-positive patients.

The study suggests that higher levels of soluble CD163 (>10,000 ng/mL) correlate with disease severity in HLH, and monitoring these levels can help evaluate prognosis and treatment response, as seen in follow-up cases.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

[Expression of CD163 in children with Epstein-Barr virus infection]. Chen, YL., Chen, FX., Deng, CB., et al.[2015]

In a study of 41 patients diagnosed with hemophagocytic lymphohistiocytosis (HLH) at the University of Arkansas, the overall mortality rate was high at 54%, highlighting the severity of this disorder.

Patients with malignancy-related HLH had a significantly worse prognosis, with a mortality rate of 73.33%, compared to 34.62% for those without malignancies, indicating that underlying conditions greatly affect outcomes.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Hemophagocytic lymphohistiocytosis in adults. Pandey, Y., Atwal, D., Konda, M., et al.[2020]

The implementation of an evidence-based guideline (EBG) for managing hemophagocytic lymphohistiocytosis (HLH) and macrophage activation syndrome (MAS) significantly reduced mortality from 50% to 6% in children, indicating improved safety and efficacy of treatment protocols.

Post-EBG, there was a notable improvement in clinical outcomes, including faster diagnosis and treatment initiation, as well as quicker reduction in inflammation markers, suggesting that a multidisciplinary approach enhanced patient care.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

An Evidence-Based Guideline Improves Outcomes for Patients With Hemophagocytic Lymphohistiocytosis and Macrophage Activation Syndrome. Taylor, ML., Hoyt, KJ., Han, J., et al.[2023]

The HLH-2004 study expanded the diagnostic criteria for hemophagocytic lymphohistiocytosis (HLH) to include three additional markers, improving the accuracy of diagnosis by requiring five out of eight criteria to be met.

The treatment protocol for HLH-2004 includes a combination of chemotherapy and immunotherapy, with specific recommendations for hematopoietic stem cell transplantation in severe cases, highlighting a comprehensive approach to managing this serious condition.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

HLH-2004: Diagnostic and therapeutic guidelines for hemophagocytic lymphohistiocytosis. Henter, JI., Horne, A., Aricó, M., et al.[2022]

In a pooled analysis of 4170 patients from six trials, belimumab showed similar safety and efficacy profiles in older adults (≥65 years) with systemic lupus erythematosus (SLE) compared to the overall patient population, indicating it can be a viable treatment option for this age group.

While older adults had lower disease activity but more organ damage, the rates of serious adverse events were comparable between older adults and the overall population, suggesting that belimumab is generally safe for use in older patients.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Safety and efficacy of belimumab in older adults with SLE: results of an integrated analysis of clinical trial data. D'Cruz, D., Eriksson, G., Green, Y., et al.[2023]

Alemtuzumab, natalizumab, and fingolimod are the most effective immunotherapies for preventing relapses in patients with relapsing-remitting multiple sclerosis, although their impact on preventing disability worsening is uncertain.

Fingolimod carries a high risk of treatment discontinuation due to adverse events, highlighting the importance of monitoring for side effects in patients undergoing this therapy.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Association of Immunotherapies With Outcomes in Relapsing-Remitting Multiple Sclerosis. Tramacere, I., Del Giovane, C., Filippini, G.[2016]

A 9-month-old boy with hemophagocytic lymphohistiocytosis (HLH) underwent successful allogeneic stem cell transplantation (SCT) using a reduced-intensity conditioning regimen, leading to normal recovery and no signs of HLH or graft-versus-host disease (GVHD) after 20 months.

The study suggests that reduced-intensity conditioning for SCT may be a safer and effective option for treating HLH in children, as it minimizes toxicity while still achieving successful outcomes without the need for complete myeloablation.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Successful father-to-son stem cell transplantation in a child with hemophagocytic lymphohistiocytosis using a reduced-intensity conditioning regimen. Gonzalez-Llano, O., Jaime-Pérez, J., Cantu-Rodríguez, O., et al.[2013]

Two cases of hemophagocytic lymphohistiocytosis (HLH) progressed to acute leukemia, highlighting a rare but significant connection between HLH and malignancy.

Patients with genetic mutations related to HLH or impaired natural killer (NK) cell function should be closely monitored for potential future cancers, even after HLH symptoms have resolved.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Hemophagocytic lymphohistiocytosis with MUNC13-4 gene mutation or reduced natural killer cell function prior to onset of childhood leukemia. Chang, TY., Jaffray, J., Woda, B., et al.[2021]

In a study of 343 patients with acute myeloid leukemia undergoing intensive chemotherapy, 9.3% developed hemophagocytic lymphohistiocytosis (HLH), which is linked to severe infections and characterized by symptoms like fever and very high ferritin levels.

Patients with HLH had a significantly shorter median overall survival of 14.9 months compared to 22.1 months for those without HLH, highlighting the condition's serious impact on treatment outcomes and the need for prompt diagnosis and management.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Hemophagocytic syndrome in patients with acute myeloid leukemia undergoing intensive chemotherapy. Delavigne, K., Bérard, E., Bertoli, S., et al.[2021]

References

1. France pubmed.ncbi.nlm.nih.gov

[Hemophagocytic lymphohistiocytosis: A retrospective analysis of 66 patients]. [2023]

2. China pubmed.ncbi.nlm.nih.gov

[Expression of CD163 in children with Epstein-Barr virus infection]. [2015]

3. United States pubmed.ncbi.nlm.nih.gov

Hemophagocytic lymphohistiocytosis in adults. [2020]

4. Canada pubmed.ncbi.nlm.nih.gov

An Evidence-Based Guideline Improves Outcomes for Patients With Hemophagocytic Lymphohistiocytosis and Macrophage Activation Syndrome. [2023]

5. United States pubmed.ncbi.nlm.nih.gov

HLH-2004: Diagnostic and therapeutic guidelines for hemophagocytic lymphohistiocytosis. [2022]

6. England pubmed.ncbi.nlm.nih.gov

Risk of adverse events including serious infections in rheumatoid arthritis patients treated with tocilizumab: a systematic literature review and meta-analysis of randomized controlled trials. [2022]

7. England pubmed.ncbi.nlm.nih.gov

Safety and efficacy of belimumab in older adults with SLE: results of an integrated analysis of clinical trial data. [2023]

8. United States pubmed.ncbi.nlm.nih.gov

Association of Immunotherapies With Outcomes in Relapsing-Remitting Multiple Sclerosis. [2016]

9. Canada pubmed.ncbi.nlm.nih.gov

A proposal for developing a large patient population cohort for longterm safety monitoring in rheumatoid arthritis. OMERACT Drug Safety Working Party. [2007]

10. England pubmed.ncbi.nlm.nih.gov

Safety analyses of adalimumab (HUMIRA) in global clinical trials and US postmarketing surveillance of patients with rheumatoid arthritis. [2022]

11. England pubmed.ncbi.nlm.nih.gov

Successful father-to-son stem cell transplantation in a child with hemophagocytic lymphohistiocytosis using a reduced-intensity conditioning regimen. [2013]

12. United States pubmed.ncbi.nlm.nih.gov

Hemophagocytic lymphohistiocytosis with MUNC13-4 gene mutation or reduced natural killer cell function prior to onset of childhood leukemia. [2021]

13. Italy pubmed.ncbi.nlm.nih.gov

Hemophagocytic syndrome in patients with acute myeloid leukemia undergoing intensive chemotherapy. [2021]