ClinicalTrials.gg
CompletedNCT03896152Updated Jun 18, 2024Results posted

Efficacy, Safety, Pharmacokinetics and Pharmacodynamics Study, Assessing Multiple LNP023 Doses in Adult Patients With Paroxysmal Nocturnal Hemoglobinuria

A Phase 2 interventional study of LNP023 in Paroxysmal Nocturnal Hemoglobinuria, sponsored by Novartis Pharmaceuticals. Completed at 5 sites in 4 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-06-18.

Sponsored by Novartis Pharmaceuticals (part of Novartis) · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
13
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This was a Phase II randomized, open-label, multicenter, efficacy, safety, pharmacokinetic and pharmacodynamic study assessing four iptacopan doses in adult Paroxysmal nocturnal hemoglobinuria (PNH) patients with active hemolysis who were not on eculizumab or any other complement inhibitor less than 3 months prior to first iptacopan dose. Active hemolysis was defined by a lactate dehydrogenase (LDH) value ≥ 1.5 × ULN.

Read the detailed description

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

The total study duration from Screening until end of study (EOS) was approximately 28 months. This three-period study included:

  • Screening phase: of up to 8 weeks
  • Period 1: a 4-week treatment period of iptacopan at the first dose in the assigned sequence
  • Period 2: an 8-week treatment period at the second dose in the assigned sequence
  • Period 3: an approximate 2-year treatment extension period for patients who responded to iptacopan treatment
  • Taper down period of 2 weeks was applicable only for patients discontinuing iptacopan treatment (Week 13 for non-responders or Week 109 for responders who did not enter the rollover extension program (REP) (Study CLNP023C12001B / NCT04747613)). During this taper down period, patients were to receive 25 mg qd (once a day) of iptacopan for 7 days, followed by 10 mg qd for 7 additional days.
  • An EOS visit that took place 1 week after the last iptacopan administration for patients not joining the REP. For patients joining the REP, the last treatment visit was the EOS visit.
  • A safety follow-up call 30 days after the last administration of iptacopan was performed for patients not joining the REP.

Patients were randomized to Sequence 1 or Sequence 2 in a 1:1 ratio. Sequence 1: Four weeks of treatment with iptacopan 25 mg bid (Twice daily) in Period 1 followed by treatment with 100 mg bid in Period 2 and Period 3. If during Period 1, LDH was not reduced by ≥ 40% from the mean of pretreatment values by Week 2 (Day 15 study visit), the iptacopan dose was to be up-titrated to 100 mg bid (starting from Study Day 17). If LDH was not reduced by ≥ 40% from the mean of pretreatment values at Week 4 (Day 29), the iptacopan dose was to be up-titrated to 200 mg bid in Period 2 and Period 3 (starting from Study Day 30). In the approximate 2-year treatment extension (Period 3), patients maintained the same treatment regimen as used in Period 2.

Sequence 2: Four weeks of treatment with iptacopan 50 mg bid in Period 1 followed by treatment with 200 mg bid in Period 2 and Period 3. If during Period 1, LDH was not reduced by ≥ 40% from the mean of pretreatment values by Week 2 (Day 15 study visit), the iptacopan dose was to be up-titrated to 200 mg bid (starting from Study Day 17). In the approximate 2-year treatment extension (Extension Period 3), patients remained on 200 mg bid. No further up-titration was possible

02

Conditions studied

  • Paroxysmal Nocturnal Hemoglobinuria

Keywords

  • Complement
  • alternative pathway
  • paroxysmal nocturnal hemoglobinuria
  • hemolysis
  • LNP023
  • PNH
  • LDH
  • hemoglobin
  • Iptacopan
03

In context

Hemoglobinuria, Paroxysmal

191 studies on the registry are indexed under Hemoglobinuria, Paroxysmal; 49 are open to participants now.

This study's enrollment of 13 is below the median of 33 across 150 interventional studies indexed under Hemoglobinuria, Paroxysmal.

Browse Hemoglobinuria, Paroxysmal studies →

Lead sponsor

Novartis Pharmaceuticals is the lead sponsor of 2,718 studies on the registry; 221 are open to participants now.

Of its 585 completed or terminated interventional studies of FDA-regulated products, 438 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Written must be obtained before any assessment is performed.
  2. Male and female patients at least 18 years old at baseline.
  3. Diagnosis of active PNH based on documented clone size of ≥10% by RBCs and/or granulocytes, measured by GPI-deficiency on flow cytometry (screening or medical history data acceptable).
  4. LDH values > 1.5 x (ULN) for at least 3 measurements over a maximum of 8 weeks prior to Day 1 (Screening, baseline or medical history data acceptable).
  5. level \< 10.5 g/dL at Baseline.
  6. For Period 3 of the study, patients who as per judgment of Investigator benefit from LNP023 treatment based on reduced hemolytic parameters as compared to Screening and Baseline.
  7. Vaccinations against N. meningitidis, S. pneumoniae and H. influenzae is required at least 4 weeks prior to first dosing with LNP023 (existing vaccinations should provide effective titers at time of LNP023 treatment start). If LNP023 treatment has to start earlier than 4 weeks post vaccination, prophylactic antibiotic treatment must be initiated.
  8. Able to communicate well with the investigator, to understand and comply with the requirements of the study. -

Exclusion criteria

Exclusion Criteria:

  1. Participation in any other drug trial or use of other investigational drugs at the time of enrollment, or within 5 elimination half-lives of enrollment, or within 30 days, whichever is longer; or longer if required by local regulations.
  2. Patients treated with eculizumab or any other complement inhibitor less than 3 months prior to study Day 1
  3. Known or suspected hereditary or acquired complement deficiency.
  4. History of currently active primary or secondary immunodeficiency.
  5. History of splenectomy.
  6. History of bone marrow/ hematopoietic stem cell or solid organ transplants (e.g. heart, lung, kidney, liver).
  7. Evidence of malignant disease, or diagnosed within the previous 5 years.
  8. Patients with laboratory evidence of bone marrow failure (reticulocytes \< 60x10E9/L, or \< 50x10E9/L or neutrophils \< 1x10E9/L) verified both at screening and baseline.
  9. History of recurrent meningitis, history of meningococcal infections despite vaccination, as verified at both screening and baseline.
  10. Presence or suspicion (based on judgment of the investigator) of active infection within 2 weeks prior to first dose of LNP023, or history of severe recurrent bacterial infections.
  11. A positive , (HBV) or (HCV) test result at screening.
  12. Patients on agents such, as but not limited to, cyclosporine, tacrolimus, mycophenolate or mycophenolic acid, cyclophosphamide, methotrexate or IV immunoglobulins, less than 8 weeks prior to first treatment with LNP023, unless on a stable regimen for at least 3 months prior to first LNP023 dose.
  13. Systemic unless on a stable dose for at least 4 weeks before randomization.
  14. Severe concurrent co-morbidities not amenable to active treatment; e.g., patients with severe kidney disease (CKD stage 4, dialysis), advanced cardiac disease ( class IV), severe pulmonary arterial hypertension (WHO class IV), or unstable thrombotic event, as judged by the investigator, both at screening and baseline (unless baseline was skipped).
  15. Any medical condition deemed likely to interfere with the patient's participation in the study, or likely to cause serious adverse events during the study.
  16. History of to the study treatment or its or to drugs of similar chemical classes.
  17. Female patients who are pregnant or breastfeeding, or intending to conceive during the course of the study.
  18. Women of , defined as all women physiologically capable of becoming pregnant, unless they are using highly effective methods of during dosing and for 1 week after stopping of investigational drug
Terms in these criteria, in plain language(16)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
13 participants (actual)

Study arms

  • Experimental
    LNP023 25 mg bid/100 mg bid

    Four weeks of treatment with iptacopan 25 mg bid in Period 1 followed by treatment with 100 mg bid in Period 2 and Period 3.

    Drug: LNP023

  • Experimental
    LNP023 50 mg bid/200 mg bid

    Four weeks of treatment with iptacopan 50 mg bid in Period 1 followed by treatment with 200 mg bid in Period 2 and Period 3.

    Drug: LNP023

Interventions

  • DrugLNP023

    approximately 2 year of Treatment with LNP023

    Also known as: iptacopan

06

What researchers measure

Primary outcomes

  1. Summary of Lactate Dehydrogenase (LDH) Responders

    A responder was defined as a patient with at least 60% reduction in LDH compared to Baseline or LDH below the upper limit of normal at any time up to and including Week 12 for that patient.

    Time frame: Week 2, week 4, week 8 and week 12

Secondary outcomes

  1. Percent Change From Baseline in LDH Levels

    LDH was used as a hemolysis marker to determine the dose-response effect of iptacopan on the reduction of Paroxysmal nocturnal hemoglobinuria (PNH)-associated hemolysis. Active hemolysis is defined by an LDH value ≥ 1.5x upper limit of normal (ULN) Baseline LDH was calculated as the average of the last three screening values prior to randomization. Serum was used to calculate the LDH values

    Time frame: Baseline, week 2, week 4, week 8 and week 12

  2. Change From Baseline in Hemoglobin

    Hemoglobin was used as a hemolysis marker to determine the dose-response effect of iptacopan on the reduction of PNH-associated hemolysis. Whole blood was used to calculate the hemoglobin values.

    Time frame: Baseline, Week 2, week 4, week 8 and week 12

  3. Change From Baseline in Free Hemoglobin

    Free hemoglobin was used as a hemolysis marker to determine the dose-response effect of iptacopan on the reduction of PNH-associated hemolysis. Whole blood was used to calculate the hemoglobin values.

    Time frame: Baseline, Week 2, week 4, week 8 and week 12

  4. Change From Baseline in Carboxyhemoglobin

    Carboxyhemoglobin was used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Whole blood was used to calculate the carboxyhemoglobin values.

    Time frame: Baseline, Week 2, week 4, week 8 and week 12

  5. Change From Baseline in Absolute Reticulocyte Count (ARC)

    Reticulocyte count was used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Whole blood was used to calculate the absolute reticulocyte count.

    Time frame: Baseline, week 2, week 4, week 8 and week 12

  6. Red Blood Cell Count: Change From Baseline in Erythrocytes

    Erythrocytes were used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Whole blood was used to calculate erythrocytes values.

    Time frame: Baseline, week 2, week 4, week 8 and week 12

  7. Change From Baseline in C3 Fragment Deposition on PNH RBC

    C3 fragment deposition on paroxysmal nocturnal hemoglobinuria red blood cell (PNH RBC) was used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Accumulation of C3 fragments on red blood cells make them prone to phagocytosis causing extravascular hemolysis. Whole blood was used to calculate C3 fragment deposition on PNH RBC values.

    Time frame: Baseline, week 2, week 4, week 8 and week 12

  8. Mean Haptoglobin Levels

    Haptoglobin levels were used as a hemolysis marker to determine the effect of iptacopan on the reduction of PNH-associated hemolysis. Serum was used to calculate haptoglobin levels.

    Time frame: Baseline, week 2, week 4, week 8 and week 12

  9. Change From Baseline in Total Bilirubin

    Bilirubin levels were used as a hemolysis marker to determine the effect of iptacopan on the reduction of PNH-associated hemolysis. Serum was used to calculate bilirubin levels.

    Time frame: Baseline, week 2, week 4, week 8 and week 12

  10. Mean Platelets Count

    Platelet counts were used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Whole blood was used to calculate platelets count.

    Time frame: Baseline, week 2, week 4, week 8 and week 12

  11. Mean Ferritin Levels

    Ferritin levels were used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Serum was used to calculate ferritin levels.

    Time frame: Baseline, Week 4, Week 8 and week 12

  12. Mean Clone Size

    PNH clone size was used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Whole blood was used to calculate clone size values.

    Time frame: Baseline, week 2, week 4, week 8 and week 12

  13. Pharmacokinetics Profile: Maximum Plasma Concentration (Cmax)

    Cmax is the maximum (peak) observed plasma drug concentration after single dose administration (mass x volume-1). PK parameters were determined, using non-compartmental method(s) with Phoenix WinNonlin (Version 8.3), from the plasma concentration-time data.

    Time frame: Day 29 and 57

  14. Pharmacokinetics Profile: Area Under the Curve Tau (AUCtau)

    The AUCtau is the area under the plasma concentration-time curve calculated to the end of a dosing interval (tau) at steady-state (amount x time x volume-1). AUCtau was estimated by imputing the 12-hour iptacopan plasma concentration as the PK profile's corresponding pre-dose (0-hour) value, that is, by assuming that at steady-state the iptacopan plasma concentration is the same as the beginning (pre-dose) and end (12 hours postdose) of the dosing interval. PK parameters were determined, using non-compartmental method(s) with Phoenix WinNonlin (Version 8.3), from the plasma concentration-time data.

    Time frame: Days 29 and 57

  15. Pharmacokinetics Profile: Minimum Plasma Concentration (Cmin)

    Cmin is the lowest plasma concentration observed during a dosing interval at steady state \[mass / volume\]. PK parameters were determined, using non-compartmental method(s) with Phoenix WinNonlin (Version 8.3), from the plasma concentration-time data.

    Time frame: Days 29 and 57

  16. 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 parameters were determined, using non-compartmental method(s) with Phoenix WinNonlin (Version 8.3), from the plasma concentration-time data.

    Time frame: Days 29 and 57

  17. Mean Fibrinogen Levels

    Fibrinogen level was used as a marker associated with risk of thrombosis. Plasma was used to calculate fibrinogen levels.

    Time frame: Baseline, week 2, week 4, week 8 and week 12

  18. Mean Prothrombin Time (PT)

    Prothrombin time was used as a marker associated with risk of thrombosis. Plasma was used to calculate prothrombin time.

    Time frame: Baseline, week 2, week 4, week 8 and week 12

  19. Mean Activated Partial Thromboplastin Time (aPTT)

    Activated partial thromboplastin time was used as a marker associated with risk of thrombosis. Plasma was used to calculate activated partial thromboplastin time.

    Time frame: Baseline, week 2, week 4, week 8 and week 12

  20. Mean D-dimer Levels

    D-dimer levels were used as a marker associated with risk of thrombosis. Plasma was used to calculate D-dimer levels.

    Time frame: Baseline, week 2, week 4, week 8 and week 12

  21. Mean Thrombin Clotting Time

    thrombin clotting time was used as a marker associated with risk of thrombosis. Plasma was used to calculate thrombin clotting time.

    Time frame: Baseline, Week 4, Week 8 and Week 12

07

Results

Posted Dec 18, 2023

Participant flow

Participants took part in 5 investigative sites in 4 countries

Participant flow — Overall Study
MilestoneLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Started76
Completed44
Not completed32
Withdrew: Patient/guardian decision11
Withdrew: Adverse event01
Withdrew: Physician decision10
Withdrew: Technical problems10

Outcome measures

PrimarySummary of Lactate Dehydrogenase (LDH) Responders

A responder was defined as a patient with at least 60% reduction in LDH compared to Baseline or LDH below the upper limit of normal at any time up to and including Week 12 for that patient.

Time frame:
Week 2, week 4, week 8 and week 12
Reported as:
Count of participants · Participants
Summary of Lactate Dehydrogenase (LDH) Responders
ParticipantsLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Responders at week 265
Responders at week 475
Responders at week 875
Responders at week 1275
SecondaryPercent Change From Baseline in LDH Levels

LDH was used as a hemolysis marker to determine the dose-response effect of iptacopan on the reduction of Paroxysmal nocturnal hemoglobinuria (PNH)-associated hemolysis. Active hemolysis is defined by an LDH value ≥ 1.5x upper limit of normal (ULN) Baseline LDH was calculated as the average of the last three screening values prior to randomization. Serum was used to calculate the LDH values

Time frame:
Baseline, week 2, week 4, week 8 and week 12
Reported as:
Mean · Percent change in LDH levels
Percent Change From Baseline in LDH Levels
Percent change in LDH levelsLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Week 2-76.52 ± 18.478-84.98 ± 8.186
Week 4-79.75 ± 16.025-89.72 ± 5.430
Week 8-81.73 ± 22.832-88.30 ± 8.744
Week 12-86.17 ± 8.896-85.92 ± 9.013
SecondaryChange From Baseline in Hemoglobin

Hemoglobin was used as a hemolysis marker to determine the dose-response effect of iptacopan on the reduction of PNH-associated hemolysis. Whole blood was used to calculate the hemoglobin values.

Time frame:
Baseline, Week 2, week 4, week 8 and week 12
Reported as:
Mean · g/L
Change From Baseline in Hemoglobin
g/LLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Week 26.88 ± 5.81231.83 ± 10.362
Week 49.61 ± 11.85736.58 ± 17.875
Week 815.02 ± 9.15438.08 ± 25.956
Week 1223.36 ± 14.37837.11 ± 26.171
SecondaryChange From Baseline in Free Hemoglobin

Free hemoglobin was used as a hemolysis marker to determine the dose-response effect of iptacopan on the reduction of PNH-associated hemolysis. Whole blood was used to calculate the hemoglobin values.

Time frame:
Baseline, Week 2, week 4, week 8 and week 12
Reported as:
Mean · mg/dL
Change From Baseline in Free Hemoglobin
mg/dLLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Week 2-39.84 ± 26.521-13.53 ± 5.093
Week 4-31.88 ± 35.314-29.26 ± 24.218
Week 8-31.85 ± 27.517-16.31 ± 48.877
Week 12-39.58 ± 31.612-14.75 ± 6.293
SecondaryChange From Baseline in Carboxyhemoglobin

Carboxyhemoglobin was used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Whole blood was used to calculate the carboxyhemoglobin values.

Time frame:
Baseline, Week 2, week 4, week 8 and week 12
Reported as:
Mean · Percentage of carboxyhemoglobin
Change From Baseline in Carboxyhemoglobin
Percentage of carboxyhemoglobinLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Week 2-0.01 ± 0.516-0.72 ± 0.697
Week 4-0.36 ± 0.472-0.98 ± 0.582
Week 8-0.50 ± 0.664-1.12 ± 0.916
Week 12-0.95 ± 0.316-0.78 ± 1.704
SecondaryChange From Baseline in Absolute Reticulocyte Count (ARC)

Reticulocyte count was used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Whole blood was used to calculate the absolute reticulocyte count.

Time frame:
Baseline, week 2, week 4, week 8 and week 12
Reported as:
Mean · 10^9 cells/L
Change From Baseline in Absolute Reticulocyte Count (ARC)
10^9 cells/LLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Week 2-83.00 ± 78.750-94.23 ± 112.649
Week 4-118.44 ± 76.736-132.63 ± 91.109
Week 8-113.71 ± 72.300-119.43 ± 117.048
Week 12-93.00 ± 93.425-84.92 ± 123.408
SecondaryRed Blood Cell Count: Change From Baseline in Erythrocytes

Erythrocytes were used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Whole blood was used to calculate erythrocytes values.

Time frame:
Baseline, week 2, week 4, week 8 and week 12
Reported as:
Mean · 10^12 cells/L
Red Blood Cell Count: Change From Baseline in Erythrocytes
10^12 cells/LLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Week 20.49 ± 0.1941.02 ± 0.407
Week 40.74 ± 0.4011.26 ± 0.619
Week 81.16 ± 0.3961.38 ± 0.796
Week 121.38 ± 0.5311.38 ± 0.770
SecondaryChange From Baseline in C3 Fragment Deposition on PNH RBC

C3 fragment deposition on paroxysmal nocturnal hemoglobinuria red blood cell (PNH RBC) was used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Accumulation of C3 fragments on red blood cells make them prone to phagocytosis causing extravascular hemolysis. Whole blood was used to calculate C3 fragment deposition on PNH RBC values.

Time frame:
Baseline, week 2, week 4, week 8 and week 12
Reported as:
Mean · % C3 fragment deposition on PNH RBC
Change From Baseline in C3 Fragment Deposition on PNH RBC
% C3 fragment deposition on PNH RBCLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Week 2-1.31 ± 0.932-1.88 ± 1.457
Week 4-1.43 ± 1.217-2.74 ± 2.584
Week 8-1.85 ± 1.293-2.90 ± 2.654
Week 12-1.65 ± 1.221-2.75 ± 3.002
SecondaryMean Haptoglobin Levels

Haptoglobin levels were used as a hemolysis marker to determine the effect of iptacopan on the reduction of PNH-associated hemolysis. Serum was used to calculate haptoglobin levels.

Time frame:
Baseline, week 2, week 4, week 8 and week 12
Reported as:
Mean · g/L
Mean Haptoglobin Levels
g/LLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Baseline0.05 ± 0.0000.05 ± 0.000
Week 20.27 ± 0.2510.41 ± 0.499
Week 40.24 ± 0.2550.49 ± 0.490
Week 80.38 ± 0.4560.41 ± 0.374
Week 120.25 ± 0.3560.18 ± 0.225
SecondaryChange From Baseline in Total Bilirubin

Bilirubin levels were used as a hemolysis marker to determine the effect of iptacopan on the reduction of PNH-associated hemolysis. Serum was used to calculate bilirubin levels.

Time frame:
Baseline, week 2, week 4, week 8 and week 12
Reported as:
Mean · umol/L
Change From Baseline in Total Bilirubin
umol/LLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Week 2-19.81 ± 7.855-23.93 ± 16.735
Week 4-19.95 ± 10.620-25.93 ± 15.992
Week 8-20.24 ± 12.612-25.53 ± 16.471
Week 12-21.61 ± 5.998-23.17 ± 18.195
SecondaryMean Platelets Count

Platelet counts were used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Whole blood was used to calculate platelets count.

Time frame:
Baseline, week 2, week 4, week 8 and week 12
Reported as:
Mean · 10^9 cells/L
Mean Platelets Count
10^9 cells/LLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Baseline190.45 ± 59.938156.42 ± 52.321
Week 2223.71 ± 76.707158.20 ± 62.683
Week 4203.17 ± 68.520138.20 ± 57.085
Week 8184.43 ± 50.856141.20 ± 46.569
Week 12189.33 ± 54.617140.75 ± 59.618
SecondaryMean Ferritin Levels

Ferritin levels were used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Serum was used to calculate ferritin levels.

Time frame:
Baseline, Week 4, Week 8 and week 12
Reported as:
Mean · ug/L
Mean Ferritin Levels
ug/LLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Baseline176.97 ± 404.254258.90 ± 418.114
Week 4174.21 ± 431.042287.88 ± 517.901
Week 8178.31 ± 443.346304.74 ± 521.535
Week 12203.22 ± 454.296320.40 ± 526.783
SecondaryMean Clone Size

PNH clone size was used as a marker of intravascular and extravascular hemolysis to assess the effect of iptacopan. Whole blood was used to calculate clone size values.

Time frame:
Baseline, week 2, week 4, week 8 and week 12
Reported as:
Mean · Percentage of PNH Red Blood Cells
Mean Clone Size
Percentage of PNH Red Blood CellsLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Baseline33.63 ± 18.14949.13 ± 29.701
Week 254.95 ± 12.94365.65 ± 29.279
Week 465.88 ± 12.90773.74 ± 24.616
Week 879.62 ± 14.30885.06 ± 16.381
Week 1282.87 ± 11.90391.08 ± 7.842
SecondaryPharmacokinetics Profile: Maximum Plasma Concentration (Cmax)

Cmax is the maximum (peak) observed plasma drug concentration after single dose administration (mass x volume-1). PK parameters were determined, using non-compartmental method(s) with Phoenix WinNonlin (Version 8.3), from the plasma concentration-time data.

Time frame:
Day 29 and 57
Reported as:
Mean · ng/mL
Pharmacokinetics Profile: Maximum Plasma Concentration (Cmax)
ng/mLLNP023 25 mg BidLNP023 50 mg BidLNP023 100 mg BidLNP023 200 mg Bid
Day 291240 ± 3721800 ± 368——
Day 57——2640 ± 5904520 ± 1520
SecondaryPharmacokinetics Profile: Area Under the Curve Tau (AUCtau)

The AUCtau is the area under the plasma concentration-time curve calculated to the end of a dosing interval (tau) at steady-state (amount x time x volume-1). AUCtau was estimated by imputing the 12-hour iptacopan plasma concentration as the PK profile's corresponding pre-dose (0-hour) value, that is, by assuming that at steady-state the iptacopan plasma concentration is the same as the beginning (pre-dose) and end (12 hours postdose) of the dosing interval. PK parameters were determined, using non-compartmental method(s) with Phoenix WinNonlin (Version 8.3), from the plasma concentration-time data.

Time frame:
Days 29 and 57
Reported as:
Mean · h*ng/mL
Pharmacokinetics Profile: Area Under the Curve Tau (AUCtau)
h*ng/mLLNP023 25 mg BidLNP023 50 mg BidLNP023 100 mg BidLNP023 200 mg Bid
Day 299630 ± 387015200 ± 2390——
Day 57——19800 ± 490033300 ± 8830
SecondaryPharmacokinetics Profile: Minimum Plasma Concentration (Cmin)

Cmin is the lowest plasma concentration observed during a dosing interval at steady state \[mass / volume\]. PK parameters were determined, using non-compartmental method(s) with Phoenix WinNonlin (Version 8.3), from the plasma concentration-time data.

Time frame:
Days 29 and 57
Reported as:
Mean · ng/mL
Pharmacokinetics Profile: Minimum Plasma Concentration (Cmin)
ng/mLLNP023 25 mg BidLNP023 50 mg BidLNP023 100 mg BidLNP023 200 mg Bid
Day 29520 ± 299809 ± 239——
Day 57——931 ± 4601510 ± 416
SecondaryPharmacokinetics 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 parameters were determined, using non-compartmental method(s) with Phoenix WinNonlin (Version 8.3), from the plasma concentration-time data.

Time frame:
Days 29 and 57
Reported as:
Median · hours
Pharmacokinetics Profile: Time to Reach Maximum Plasma Concentration (Tmax)
hoursLNP023 25 mg BidLNP023 50 mg BidLNP023 100 mg BidLNP023 200 mg Bid
Day 291.50 (1.00 to 4.00)2.00 (1.00 to 2.00)——
Day 57——1.53 (0.830 to 2.00)2.00 (1.00 to 4.13)
SecondaryMean Fibrinogen Levels

Fibrinogen level was used as a marker associated with risk of thrombosis. Plasma was used to calculate fibrinogen levels.

Time frame:
Baseline, week 2, week 4, week 8 and week 12
Reported as:
Mean · g/L
Mean Fibrinogen Levels
g/LLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Baseline3.44 ± 0.8513.50 ± 1.178
Week 23.27 ± 0.9352.93 ± 0.445
Week 42.80 ± 0.3382.78 ± 0.566
Week 82.77 ± 0.3993.19 ± 0.531
Week 122.94 ± 0.8023.09 ± 0.699
SecondaryMean Prothrombin Time (PT)

Prothrombin time was used as a marker associated with risk of thrombosis. Plasma was used to calculate prothrombin time.

Time frame:
Baseline, week 2, week 4, week 8 and week 12
Reported as:
Mean · seconds
Mean Prothrombin Time (PT)
secondsLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Baseline10.04 ± 0.4749.84 ± 0.210
Week 210.51 ± 0.42610.18 ± 0.179
Week 410.29 ± 0.59310.22 ± 0.311
Week 810.66 ± 0.66510.98 ± 1.678
Week 1210.33 ± 0.50110.13 ± 0.359
SecondaryMean Activated Partial Thromboplastin Time (aPTT)

Activated partial thromboplastin time was used as a marker associated with risk of thrombosis. Plasma was used to calculate activated partial thromboplastin time.

Time frame:
Baseline, week 2, week 4, week 8 and week 12
Reported as:
Mean · seconds
Mean Activated Partial Thromboplastin Time (aPTT)
secondsLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Baseline23.63 ± 2.28023.32 ± 2.470
Week 225.83 ± 2.03925.66 ± 1.454
Week 426.10 ± 2.15626.46 ± 1.802
Week 827.04 ± 2.91426.84 ± 3.389
Week 1226.48 ± 3.39624.95 ± 1.279
SecondaryMean D-dimer Levels

D-dimer levels were used as a marker associated with risk of thrombosis. Plasma was used to calculate D-dimer levels.

Time frame:
Baseline, week 2, week 4, week 8 and week 12
Reported as:
Mean · mg fibrinogen-equivalent unit (FEU)/L
Mean D-dimer Levels
mg fibrinogen-equivalent unit (FEU)/LLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Baseline0.39 ± 0.2360.84 ± 0.345
Week 20.32 ± 0.2300.49 ± 0.189
Week 40.29 ± 0.1990.43 ± 0.172
Week 80.24 ± 0.2250.36 ± 0.215
Week 120.25 ± 0.1840.31 ± 0.147
SecondaryMean Thrombin Clotting Time

thrombin clotting time was used as a marker associated with risk of thrombosis. Plasma was used to calculate thrombin clotting time.

Time frame:
Baseline, Week 4, Week 8 and Week 12
Reported as:
Mean · seconds
Mean Thrombin Clotting Time
secondsLNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg Bid
Baseline14.77 ± 1.99414.83 ± 0.916
Week 414.93 ± 0.64215.58 ± 1.293
Week 814.90 ± 0.62415.48 ± 0.923
Week 1216.08 ± 1.53015.35 ± 0.526

Adverse events

Collected over Adverse events were reported from first dose of study treatment until end of study treatment plus 7 days post treatment, up to a maximum duration of 115 weeks.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
LNP023 25mg Bid - Period 10/7 (0%)0/7 (0%)2/7 (28.6%)
LNP023 50mg Bid - Period 10/6 (0%)0/6 (0%)4/6 (66.7%)
LNP023 100mg Bid - Period 20/7 (0%)0/7 (0%)3/7 (42.9%)
LNP023 200mg Bid - Period 20/5 (0%)0/5 (0%)1/5 (20%)
LNP023 100mg Bid - Period 30/7 (0%)0/7 (0%)4/7 (57.1%)
LNP023 200mg Bid - Period 30/5 (0%)0/5 (0%)4/5 (80%)
Most frequent other events
Showing 10 of 52
Most frequent other events
EventLNP023 25mg Bid - Period 1LNP023 50mg Bid - Period 1LNP023 100mg Bid - Period 2LNP023 200mg Bid - Period 2LNP023 100mg Bid - Period 3LNP023 200mg Bid - Period 3
HeadacheNervous system disorders0/73/60/70/51/71/5
Abdominal discomfortGastrointestinal disorders0/70/60/70/52/70/5
Abdominal painGastrointestinal disorders0/70/60/70/52/70/5
PyrexiaGeneral disorders1/70/60/70/52/71/5
Upper respiratory tract infectionInfections and infestations0/70/62/70/50/70/5
CoughRespiratory, thoracic and mediastinal disorders2/70/61/70/51/70/5
EosinophiliaBlood and lymphatic system disorders0/70/60/70/50/71/5
VertigoEar and labyrinth disorders0/70/60/70/50/71/5
EnterocolitisGastrointestinal disorders0/70/60/70/50/71/5
COVID-19Infections and infestations0/70/60/70/50/71/5

Baseline characteristics

Age, Continuous
Age, Continuous(years)LNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg BidTotal
Mean34.4 ± 15.2742.5 ± 11.9838.2 ± 13.93
Sex: Female, Male
Sex: Female, Male(Participants)LNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg BidTotal
Female257
Male516
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)LNP023 25 mg Bid/100 mg BidLNP023 50 mg Bid/200 mg BidTotal
Asian7613
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Study locations

5 sites
  • Novartis Investigative Site
    Seoul, 03080, Korea, Republic of
  • Novartis Investigative Site
    Seoul, 06351, Korea, Republic of
  • Novartis Investigative Site
    Kota Kinabalu, Sabah 88586, Malaysia
  • Novartis Investigative Site
    Singapore, 119228, Singapore
  • Novartis Investigative Site
    Taipei, 10002, Taiwan
09

References and documents

Publications

  • Jang JH, Wong L, Ko BS, Yoon SS, Li K, Baltcheva I, Nidamarthy PK, Chawla R, Junge G, Yap ES. Iptacopan monotherapy in patients with paroxysmal nocturnal hemoglobinuria: a 2-cohort open-label proof-of-concept study. Blood Adv. 2022 Aug 9;6(15):4450-4460. doi: 10.1182/bloodadvances.2022006960. PubMed 35561315 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — 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.

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Apr 2019 to primary completion in Apr 2020, 12 months.

Results were first posted in Dec 2023, 3 years 8 months after primary completion.

Of 26 industry-sponsored phase 2 interventional studies under Hemoglobinuria, Paroxysmal, half reached primary completion within 16 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 25. This study's 12 months is below that.

Counting every sponsor, half of 34 studies reached it within 24 months; a quarter within 12 and three quarters within 80.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 28, 2019
First posted
Mar 29, 2019
StartActual
Apr 5, 2019
Primary completionActual
Apr 7, 2020
CompletionActual
Feb 9, 2022
Results first posted
Dec 18, 2023
Last update
Jun 18, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 18, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03896152
Responsible party
Sponsor
First posted
Mar 29, 2019
Start date
Apr 5, 2019
Primary completion
Apr 7, 2020
Completion
Feb 9, 2022
Results posted
Dec 18, 2023
Last update
Jun 18, 2024

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Iptacopan

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