Study of Safety, Efficacy, Tolerability, Pharmacokinetics and Pharmacodynamics of LNP023 in in Patients With Paroxysmal Nocturnal Hemoglobinuria (PNH)

An Open Label, Single Arm, Multiple Dose Study to Assess Efficacy, Safety, Pharmacokinetics and Pharmacodynamics of LNP023 When Administered in Addition to Standard of Care (SoC) in Patients With Paroxysmal Nocturnal Hemoglobinuria (PNH) With Signs of Active Hemolysis

This was a Phase 2, open label, single arm, multiple dose study to assess efficacy, safety, pharmacokinetics and pharmacodynamics of iptacopan when administered in addition to Standard of care (SoC) in patients with paroxysmal nocturnal hemoglobinuria (PNH) with signs of active hemolysis.

Study Overview

• Status: Completed
• Conditions: Paroxysmal Nocturnal Hemoglobinuria (PNH) With Signs of Active Hemolysis
• Intervention / Treatment: Drug: iptacopan; Combination product: Standard of Care

Detailed Description

LNP023 is a novel oral small molecular weight compound that inhibits factor B (FB) of the alternative pathway (AP). Blockade of the AP with oral LNP023 has the potential to prevent both intra - and extravascular hemolysis.

This two-cohort study consisted of a screening period of up to 68 days, a baseline visit, and Treatment periods Part 1 and Part 2. The planned duration of Treatment Part 1 was 13 weeks; the planned duration of Treatment Part 2 (treatment extension for patients who benefit from LNP023 treatment in Part 1 of the study based on reduced hemolytic parameters) was between approximately 2 to 3 years.

Cohort 1: Orally administered iptacopan 200 mg b.i.d. in Part 1 and Part 2 in addition to SoC.

Cohort 2: Orally administered iptacopan 50 mg b.i.d. for a minimum of 2 weeks in addition to SoC; this could be increased to iptacopan 200 mg b.i.d. at study day 15 or at any time later in the study if LDH was not within limit of normal or reduced by at least 60% as compared to baseline values.

End of Study (EoS) visit happened 2 weeks after last LNP023 administration for patients not joining the roll over extension program (REP).

A safety follow-up call was conducted 30 days after last administration of study treatment (applicable only for patients not joining the REP).

• Study Type: Interventional
• Enrollment (Actual): 16
• Phase: Phase 2

Contacts and Locations

Study Locations

• France
  • Paris Cedex 10, France, 75475
    • Novartis Investigative Site
• Germany
  • Essen, Germany, 45147
    • Novartis Investigative Site
• Italy
  • Napoli, Italy, 80131
    • Novartis Investigative Site

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 80 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Male and female patients between the age of 18-80 (inclusive) at Baseline with a diagnosis of PNH based on documented clone size of ≥10% by RBCs and/or granulocytes, measured by glycosylphosphatidylinositol (GPI)-deficiency on flow cytometry (screening or medical history data acceptable).
2. For Cohort 1 only: LDH values ≥1.5 × Upper limit of normal (ULN) range for at least 3 pre-SoC dosing measurements taken in relation to 3 different SoC dosing dates over a maximum of 10 weeks prior to Day 1 (Screening, Baseline, or medical history data acceptable). All other Screening pre-SoC LDH values must be >1 × ULN range (for pre-SoC samples collected at the same day as SoC administration).
3. For Cohort 2 only: LDH values ≥1.25 × ULN range for at least 3 pre-SoC dosing measurements taken in relation to 3 different SoC dosing dates over a maximum of 10 weeks prior to Day 1 (Screening, Baseline, or medical history data acceptable). All other Screening pre-SoC LDH values must be >1 × ULN range (for pre-SoC samples collected at the same day as SoC administration).
4. For Cohort 2 only: Hemoglobin level <10.5 g/dL at Baseline.
5. PNH patients on stable regimen of SoC complement blockade (monoclonal antibody with anti C5 activity) for at least 3 months prior to first treatment with iptacopan.
6. Previous vaccination against N. meningitidis types A, C, Y and W-135 is required at least 4 weeks prior to first dosing with iptacopan. Vaccination against N. meningitidis type B should be conducted if available and acceptable by local regulations, at least 4 weeks prior to first dosing with iptacopan. If iptacopan treatment must start earlier than 4 weeks post vaccination, prophylactic antibiotic treatment must be initiated.
7. Previous vaccination for the prevention of S. pneumoniae and H. influenzae at least 4 weeks prior to first dosing with iptacopan. If iptacopan treatment must start earlier than 4 weeks post vaccination, prophylactic antibiotic treatment must be initiated.

Exclusion Criteria:

1. Known or suspected hereditary complement deficiency at Screening.
2. History of hematopoietic stem cell transplantation as verified both at Screening and at Baseline (unless baseline was skipped).
3. Patients with laboratory evidence of bone marrow failure.
4. A positive Human immunodeficiency virus (HIV), Hepatitis B or Hepatitis C test result at Screening.
5. Presence or suspicion (based on judgment of the Investigator) of active infection within 2 weeks prior to first dose of iptacopan, or history of severe recurrent bacterial infections.
6. History of recurrent meningitis, history of meningococcal infections despite vaccination as verified both at Screening and at Baseline (unless Baseline was skipped).
7. Patients on immunosuppressive agents such as (but not limited to) cyclosporine, mycophenolate mofetil, tacrolimus, cyclophosphamide, methotrexate less than 8 weeks prior to first treatment with iptacopan unless on a stable regimen for at least 3 months prior to first iptacopan dose.
8. Systemic corticosteroids administered at the dose of ≥10 mg per day prednisone equivalent within less than 4 weeks prior to first treatment with iptacopan.
9. Severe concurrent co-morbidities; e.g., patients with severe kidney disease (dialysis), advanced cardiac disease (New York Heart disease Association (NYHA) class IV), severe pulmonary arterial hypertension (World Health Organization (WHO) class IV), unstable thrombotic event not amenable to active treatment as judged by the Investigator both at Screening and at Baseline (unless Baseline was skipped).

Study Plan

How is the study designed?

Design Details

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

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Cohort 1: LNP023 200mg bid + SoC; Orally administered iptacopan 200 mg b.i.d. in Part 1 and Part 2	Drug: iptacopan; iptacopan bid orally administered; Other Names: LNP023; Combination product: Standard of Care; Standard of Care (SoC) is defined as an antibody with anti C5 activity. At the time of study start, eculizumab was the only available SoC; eculizumab will be hereafter referred to as SoC.
Experimental: Cohort 2: LNP023 50mg/200mg bid + SoC; Orally administered iptacopan 50 mg b.i.d. for a minimum of 2 weeks in addition to SoC; this could be increased to iptacopan 200 mg b.i.d. at study day 15 or at any time later in the study if LDH was not within limit of normal or reduced by at least 60% as compared to baseline values.	Drug: iptacopan; iptacopan bid orally administered; Other Names: LNP023; Combination product: Standard of Care; Standard of Care (SoC) is defined as an antibody with anti C5 activity. At the time of study start, eculizumab was the only available SoC; eculizumab will be hereafter referred to as SoC.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Percent Change From Baseline in Lactate Dehydrogenase (LDH) Level at Day 92	Serum LDH was used as an intravascular hemolysis marker to assess the effect of iptacopan on the reduction of chronic hemolysis in paroxysmal nocturnal hemoglobinuria (PNH) patients when administered in addition to SoC (monoclonal antibody with anti C5 activity) Baseline is defined as the mean of the last 3 measurements prior to dose administration.	Baseline and Day 92

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Absolute Change From Baseline in Lactate Dehydrogenase (LDH) Level	Serum LDH was used as an intravascular hemolysis marker to assess the effect of iptacopan on the reduction of chronic hemolysis in paroxysmal nocturnal hemoglobinuria (PNH) patients when administered in addition to SoC (monoclonal antibody with anti C5 activity) Baseline is defined as the mean of the last 3 measurements prior to dose administration.	Baseline, day 8, 15, 29, 57 and 92
Absolute Change From Baseline in Hemoglobin	Hemoglobin was used as a marker of intra and extravascular hemolysis when administered in addition to SoC (monoclonal antibody with anti C5 activity) to assess the effect of iptacopan. Baseline is defined as the mean of all pre-dose measurements.	Baseline; day 1, 2, 8, 15, 22, 29, 36, 43, 57, 71, 85, 92, 113, 127, 141, 155, 169, 197, 225, 253, 281, 309, 337, 393, 449, 505, 561, 617, 673, 729, 785, 841, 897, 953, 1009, 1065, 1121, 1177, 1233
Absolute Change From Baseline in Free Hemoglobin	Free hemoglobin was used as a marker of intra and extravascular hemolysis when administered in addition to SoC (monoclonal antibody with anti C5 activity) to assess the effect of iptacopan. Baseline is defined as the mean of all pre-dose measurements.	Baseline; day 1, 2, 8, 15, 22, 29, 36, 43, 57, 71, 85, 92, 113, 127, 141, 155, 169, 197, 225, 253, 281, 309, 337, 393, 449, 505, 561, 617, 673, 729, 785, 841, 897, 953, 1009, 1065, 1121, 1177, 1233
Absolute Change From Baseline in Reticulocytes Count	Reticulocytes count was used as a marker of intra and extravascular hemolysis when administered in addition to SoC (monoclonal antibody with anti C5 activity) to assess the effect of iptacopan. Baseline is defined as the mean of all pre-dose measurements.	Baseline; day 1, 2, 8, 15, 22, 29, 36, 43, 57, 71, 85, 92, 113, 127, 141, 155, 169, 197, 225, 253, 281, 309, 337, 393, 449, 505, 561, 617, 673, 729, 785, 841, 897, 953, 1009, 1065, 1121, 1177, 1233
Absolute Change From Baseline in C3 Fragment Deposition on PNH RBC	C3 fragment deposition on PNH Red blood cell (RBC) was used as a marker of intra and extravascular hemolysis when administered in addition to SoC (monoclonal antibody with anti C5 activity) to assess the effect of iptacopan. Baseline is defined as Day 1 pre-dose measurement.	Day 1 pre dose, day 8, 22, 29, 57, 92, 113, 141, 169, 253, 337, 505, 673, 785, 953, 1121, 1233
Mean PNH Clone Size	Mean PNH clone size on Red Blood Cells (RBC) was used as a marker of intra and extravascular hemolysis when administered in addition to SoC (monoclonal antibody with anti C5 activity) to assess the effect of iptacopan. Baseline is defined as the mean of all pre-dose measurements.	Day 1 pre dose, day 8, 22, 29, 57, 92, 113, 141, 169, 253, 337, 505, 673, 785, 953, 1121, 1233
Mean Haptoglobin Levels	Haptoglobin level was used as a marker of intra and extravascular hemolysis when administered in addition to SoC (monoclonal antibody with anti C5 activity) to assess the effect of iptacopan. Baseline is defined as the mean of all pre-dose measurements.	Day 2, 8, 15, 22, 29, 36, 43, 57, 71, 85, 92, 113, 127, 141, 155, 169, 197, 225, 253, 281, 309, 337, 393, 449, 505, 561, 617, 673, 729, 785, 841, 897, 953, 1009, 1065, 1121, 1177, 1233
Absolute Change From Baseline in Total Bilirubin	Bilirubin was used as a marker of intra and extravascular hemolysis when administered in addition to SoC (monoclonal antibody with anti C5 activity) to assess the effect of iptacopan. Baseline is defined as the mean of all pre-dose measurements.	Baseline; day 1, 2, 8, 15, 22, 29, 36, 43, 57, 71, 85, 92, 113, 127, 141, 155, 169, 197, 225, 253, 281, 309, 337, 393, 449, 505, 561, 617, 673, 729, 785, 841, 897, 953, 1009, 1065, 1121, 1177, 1233
Number of Participants With on Study Transfusions From Packed RBC Units	Number of participants with on study transfusions from packed RBC units was collected.	Up to 46 months
Pharmacokinetics Profile: Maximum Plasma Concentration (Cmax)	Cmax is the maximum (peak) observed plasma drug concentration after single dose administration (mass x volume-1). PK assessment parameters were determined using the actual recorded sampling times and non-compartmental methods. In Cohort 2, patients were supposed to be orally administered iptacopan 50 mg b.i.d. in addition to SoC; this was increased to iptacopan 200 mg b.i.d. at study day 15 or at any time later in the study if LDH was not within limit of normal or reduced by at least 60% as compared to baseline values. One patient in Cohort 2 was orally administered iptacopan 25 mg at day 1 due to a dosing error.	Day 1, 29, 169, 337
Pharmacokinetics Profile: Area Under the Curve (AUC) Tau	The AUCtau is the area under the plasma concentration-time curve calculated to the end of a dosing interval (tau) at steady-state. PK assessment parameters were determined using the actual recorded sampling times and non-compartmental methods. In Cohort 2, patients were supposed to be orally administered iptacopan 50 mg b.i.d. in addition to SoC; this was increased to iptacopan 200 mg b.i.d. at study day 15 or at any time later in the study if LDH was not within limit of normal or reduced by at least 60% as compared to baseline values. One patient in Cohort 2 was orally administered iptacopan 25 mg at day 1 due to a dosing error.	day 1, 29, 169, 337
Pharmacokinetics Profile: Time to Reach Maximum Plasma Concentration (Tmax)	Tmax is the time to reach maximum (peak) plasma drug concentration after single dose administration (time). PK assessment parameters were determined using the actual recorded sampling times and non-compartmental methods. In Cohort 2, patients were supposed to be orally administered iptacopan 50 mg b.i.d. in addition to SoC; this was increased to iptacopan 200 mg b.i.d. at study day 15 or at any time later in the study if LDH was not within limit of normal or reduced by at least 60% as compared to baseline values. One patient in Cohort 2 was orally administered iptacopan 25 mg at day 1 due to a dosing error.	Day 1, 29, 169, 337
Red Blood Cell Count: Mean Erythrocytes Levels	Erythrocytes levels were used as a marker of intra and extravascular hemolysis when administered in addition to SoC (monoclonal antibody with anti C5 activity) to assess the effect of iptacopan.	Screening, Baseline, Day 2,8,15,22,29,36,43,57,71,85,92,113,127,141,155,169,197,225,253,281,309,337,393,449,505,561,617,673,729,729,785,841,897,953,1009,1065,1121,1177,1233

Collaborators and Investigators

• Sponsor: Novartis Pharmaceuticals
• Investigators: Study Director: Novartis Pharmaceuticals, Novartis Pharmaceuticals

Publications and helpful links

General Publications

• Risitano AM, Roth A, Soret J, Frieri C, de Fontbrune FS, Marano L, Alashkar F, Benajiba L, Marotta S, Rozenberg I, Milojevic J, End P, Nidamarthy PK, Junge G, Peffault de Latour R. Addition of iptacopan, an oral factor B inhibitor, to eculizumab in patients with paroxysmal nocturnal haemoglobinuria and active haemolysis: an open-label, single-arm, phase 2, proof-of-concept trial. Lancet Haematol. 2021 May;8(5):e344-e354. doi: 10.1016/S2352-3026(21)00028-4. Epub 2021 Mar 23.

Helpful Links

• Patient Lay Trial Summary

Study record dates

Study Major Dates

• Study Start (Actual): April 9, 2018
• Primary Completion (Actual): April 22, 2020
• Study Completion (Actual): February 28, 2022

Study Registration Dates

• First Submitted: February 14, 2018
• First Submitted That Met QC Criteria: February 14, 2018
• First Posted (Actual): February 20, 2018

Study Record Updates

• Last Update Posted (Actual): June 12, 2024
• Last Update Submitted That Met QC Criteria: June 10, 2024
• Last Verified: June 1, 2024

More Information

Terms related to this study

• Keywords: Complement; hemolysis; paroxysmal nocturnal hemoglobinuria; alternative pathway
• Additional Relevant MeSH Terms: Pathologic Processes; Urologic Diseases; Urological Manifestations; Bone Marrow Diseases; Hematologic Diseases; Urination Disorders; Anemia; Proteinuria; Anemia, Hemolytic; Myelodysplastic Syndromes; Female Urogenital Diseases; Female Urogenital Diseases and Pregnancy Complications; Urogenital Diseases; Male Urogenital Diseases; Hemoglobinuria; Hemoglobinuria, Paroxysmal; Hemolysis
• Other Study ID Numbers: CLNP023X2201; 2017-000888-33 (EudraCT Number)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES

IPD Plan Description

Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations.

This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com

Drug and device information, study documents

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