Study of NM8074 in Patients With aHUS With Evidence of Ongoing Thrombotic Microangiopathy

A Phase II, Open-Label Study of NM8074 in Patients With Atypical Hemolytic Uremic Syndrome (aHUS)

This is a Phase II, open-label study designed to determine if intravenously administered NM8074 results in remission from TMA in treatment-naïve aHUS patients.

Study Overview

• Status: Not yet recruiting
• Conditions: aHUS - Atypical Hemolytic Uremic Syndrome
• Intervention / Treatment: Drug: NM8074

Detailed Description

The proposed study, NM8074-aHUS-401,will initially assign six (6) patients per cohort in a 2-cohort trial. In the first cohort, we will evaluate a biweekly dosing regimen whereas in the second cohort, we will evaluate a weekly dose (10 mg/kg) followed by the biweekly dose (20 mg/kg) over a 3-month period. These studies will determine if NM8074 results in remission from TMA in aHUS patients. If the study shows efficacy in aHUS, additional patients may be added per cohort.

• Study Type: Interventional
• Enrollment (Estimated): 12
• Phase: Phase 2

Contacts and Locations

• Study Contact: Name: Rekha Bansal, PhD; Phone Number: 2164402696; Email: clinicalsae@novelmed.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 65 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Patients ≥ 18 years at the time of consent
• Patients with evidence of resistant or relapsed complement-mediated aHUS with symptoms of Thrombocytopenia, hemolysis, ongoing Thrombotic Microangiopathy and acute kidney injury.
• Evidence of ongoing Thrombotic Microangiopathy which includes Haptoglobin <LLN or undetectable and/or presence of schistocytes
• Acute kidney injury (proteinuria/creatinuria > ULN and/or reduced eGFR)
• Platelets less than 150,000 per microliter (Thrombocytopenia)
• Anemia (Hemoglobin ≤10 g/dL) due to hemolysis
• Lactate dehydrogenase (LDH) level ≥ 1.5 times the upper limit of normal (xULN) during Screening
• All patients must be vaccinated prior to dosing with MenACWY Menactra® polysaccharide diphtheria toxoid conjugate vaccination against Neisseria meningitidis serogroups A, C, Y, and W-135 and MenB meningococcal serogroup B vaccine (Bexsero®). If the window of vaccination is short, then patients will be prophylactically treated with appropriate antibiotics
• Willing and able to understand and complete informed consent procedures, including signing and dating the informed consent form (ICF), and comply with the study visit schedule.
• Male patients and partners of child-bearing potential must agree to use contraceptives and male patients must agree to refrain from donating sperm for the duration of the study.
• Female partners of child-bearing potential (WOCBP), defined as all women physiologically capable of becoming pregnant, must have a negative pregnancy test at screening and must agree to use highly effective methods of contraception during dosing and for 1 month after stopping the investigational drug.

Exclusion Criteria:

• History of bone marrow, hematopoietic stem cell, or solid organ transplantation
• Treatment with complement blockers
• Patients with infections
• HUS due to ADAMTS-13 deficiency (<5%)
• Kidney disease other than aHUS
• Chronic dialysis (hemo or peritoneal)
• Liver disease or other major autoimmune diseases
• Typical HUS (Shiga toxin +)
• Known Systemic Lupus Erythematosus (SLE), Systemic Sclerosis, or antiphospholipid antibody positivity or syndrome
• History of currently active primary or secondary immunodeficiency
• Currently active systemic infection or suspicion of active bacterial, viral, or fungal infection within 2 weeks prior to first dose, or history of unexplained, recurrent bacterial infections
• Has a currently active or known history of meningococcal disease or N. meningitidis infection
• Severe concurrent co-morbidities not amenable to active treatment, e.g., patients with severe kidney disease (CKD stage 4, chronic dialysis)
• Females who have a positive pregnancy test result at Screening or on Day 1.
• Pregnant, planning to become pregnant, or nursing female subjects.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Sequential Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Cohort 1; 6 subjects will receive an intravenous (IV) infusion of NM8074 at every two weeks for a total of 7 doses	Drug: NM8074; NM8074 will be administered as an intravenous infusion. In Cohort 1, all subjects will be administered 20 mg/kg of NM8074 intravenously every two weeks for a total of 7 doses from Day 1 to Day 85 of the Treatment Period. Patients in Cohort 2 will receive weekly doses of 10 mg/kg for a total of 4 doses from Day 1 to Day 22 followed by biweekly doses at 20 mg/kg for a total of 5 doses from Day 29 to Day 85.
Experimental: Cohort 2; 6 subjects will receive weekly doses of 10 mg/kg for a total of 4 doses followed by biweekly doses at 20 mg/kg for a total of 5 doses	Drug: NM8074; NM8074 will be administered as an intravenous infusion. In Cohort 1, all subjects will be administered 20 mg/kg of NM8074 intravenously every two weeks for a total of 7 doses from Day 1 to Day 85 of the Treatment Period. Patients in Cohort 2 will receive weekly doses of 10 mg/kg for a total of 4 doses from Day 1 to Day 22 followed by biweekly doses at 20 mg/kg for a total of 5 doses from Day 29 to Day 85.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Normalization of platelet count (≥150 x 10^9/L)		Up to Study Day 120
Normalization of LDH levels to below ULN		Up to Study Day 120
Normalization of Schistocyte levels (<1%)		Up to Study Day 120
Change from Baseline or Percent Change from Baseline in renal function	Assessed via the change from baseline or percent change from baseline in serum creatinine level.	Up to Study Day 120
Change from Baseline or Percent Change from Baseline in Haptoglobin		Up to Study Day 120
Change from Baseline or Percent Change from Baseline in Hemoglobin		Up to Study Day 120
Change from Baseline or Percent Change from Baseline in proteinuria/creatininuria		Up to Study Day 120

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Time to achieve complete TMA response		Baseline through Study Day 120
Time to achieve higher hemoglobin from baseline		Baseline through Study Day 120
Change from Baseline or Percent Change from Baseline in blood clots		Up to Study Day 120
Change from Baseline or Percent Change from Baseline in the total number of plasma infusions or exchanges		Baseline through Study Day 120
Change from Baseline or Percent Change from Baseline in eGFR (estimated glomerular filtration rate)		Baseline through Study Day 120
Change from Baseline or Percent Change from Baseline in dialysis requirement		Baseline through Study Day 120
Change from Baseline or Percent Change from Baseline in quality of life (QoL) Assessed via the Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue Scale, Version 4.	The FACIT-fatigue scale is a 13-item patient-reported measure of fatigue with a 7-day recall period. Items are scored on a 0 - 4 response scale ranging from "Not at all" to "Very much so". All items are summed to create a single fatigue score with a range from 0 to 52 with a better quality of life indicated by a higher score.	Baseline through Study Day 120
Change from Baseline or Percent Change from Baseline in Quality of Life (QoL) Assessed via the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 Scale (QLQ- C30), Version 3.0	All EORTC QLQ-C30 scales and single-item measures range from 0 to 100. This includes 3 symptom scales (fatigue, pain, nausea and vomiting), 5 functional scales (physical, role, cognitive, emotional, and social), single-item questions addressing symptoms like insomnia, dyspnea, loss of appetite, and others that are commonly reported by cancer patients, and the perceived financial impact of the disease. A higher score is associated with a greater quality of life for global health status.	Baseline through Study Day 120

Other Outcome Measures

Outcome Measure	Time Frame
Change from Baseline or Percent Change from Baseline in CP modulation	Baseline through Study Day 120
Change from Baseline or Percent Change from Baseline in Factor B levels	Baseline through Study Day 120
Change from Baseline or Percent Change from Baseline in plasma concentration of NM8074	Baseline through Study Day 120
Maximum plasma concentration (Cmax)	Baseline through Study Day 120
Time corresponding to Cmax (tmax)	Baseline through Study Day 120
Area under the drug concentration-time curves (AUC0-t)	Baseline through Study Day 120

Collaborators and Investigators

• Sponsor: NovelMed Therapeutics

Publications and helpful links

General Publications

• Barbour T, Scully M, Ariceta G, Cataland S, Garlo K, Heyne N, Luque Y, Menne J, Miyakawa Y, Yoon SS, Kavanagh D; 311 Study Group Members. Long-Term Efficacy and Safety of the Long-Acting Complement C5 Inhibitor Ravulizumab for the Treatment of Atypical Hemolytic Uremic Syndrome in Adults. Kidney Int Rep. 2021 Mar 24;6(6):1603-1613. doi: 10.1016/j.ekir.2021.03.884. eCollection 2021 Jun.
• Cofiell R, Kukreja A, Bedard K, Yan Y, Mickle AP, Ogawa M, Bedrosian CL, Faas SJ. Eculizumab reduces complement activation, inflammation, endothelial damage, thrombosis, and renal injury markers in aHUS. Blood. 2015 May 21;125(21):3253-62. doi: 10.1182/blood-2014-09-600411. Epub 2015 Apr 1.
• Pugh D, O'Sullivan ED, Duthie FA, Masson P, Kavanagh D. Interventions for atypical haemolytic uraemic syndrome. Cochrane Database Syst Rev. 2021 Mar 23;3(3):CD012862. doi: 10.1002/14651858.CD012862.pub2.
• Cammett TJ, Garlo K, Millman EE, Rice K, Toste CM, Faas SJ. Exploratory Prognostic Biomarkers of Complement-Mediated Thrombotic Microangiopathy (CM-TMA) in Adults with Atypical Hemolytic Uremic Syndrome (aHUS): Analysis of a Phase III Study of Ravulizumab. Mol Diagn Ther. 2023 Jan;27(1):61-74. doi: 10.1007/s40291-022-00620-3. Epub 2022 Nov 4.

Study record dates

Study Major Dates

• Study Start (Estimated): November 1, 2027
• Primary Completion (Estimated): April 1, 2030
• Study Completion (Estimated): February 1, 2031

Study Registration Dates

• First Submitted: January 4, 2023
• First Submitted That Met QC Criteria: January 12, 2023
• First Posted (Actual): January 13, 2023

Study Record Updates

• Last Update Posted (Actual): April 13, 2026
• Last Update Submitted That Met QC Criteria: April 7, 2026
• Last Verified: April 1, 2026

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Urogenital Diseases; Cytopenia; Male Urogenital Diseases; Kidney Diseases; Urologic Diseases; Female Urogenital Diseases; Female Urogenital Diseases and Pregnancy Complications; Hematologic Diseases; Anemia, Hemolytic; Anemia; Blood Platelet Disorders; Thrombotic Microangiopathies; Thrombocytopenia; Uremia; Hemic and Lymphatic Diseases; Hemolytic-Uremic Syndrome; Atypical Hemolytic Uremic Syndrome
• Other Study ID Numbers: NM8074-aHUS-401

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No