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ABP 959

Phase 3

Paroxysmal Nocturnal Hemoglobinuria | Small molecule | Hematology |Amgen Inc.|Last Updated: May 23, 2023

Success Probability

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Trial Design

RandomizedDouble-BlindCONTROLLEDDMC
Total Trials1
Total Enrollment42

FDA Designations

No designations recorded

Clinical trial landscape

ABP 959 · 1 trial · 1 indication

Phase 3 1
NCT03818607A Study Evaluating the Efficacy and Safety of ABP 959 Compared With Eculizumab in Adult Participants With PNHParoxysmal Nocturnal Hemoglobinuria
COMPLETED42 Analytics
PHASE3COMPLETED
A Study Evaluating the Efficacy and Safety of ABP 959 Compared With Eculizumab in Adult Participants With PNH
Paroxysmal Nocturnal HemoglobinuriaUnlock trial analytics

Study Endpoints

Primary Endpoints

LDH Level at Week 27 (Parallel Comparison)
Week 27

The primary analysis for the parallel comparison was hemolysis as measured by LDH at Week 27 by initial treatment received (Period 1).

Time-adjusted Area Under the Effect Curve (AUEC) of LDH (Crossover Comparison Per Assigned Treatment)
From Week 13 to Week 27, from Week 39 to Week 53, and from Week 65 to Week 79

The primary analysis for the crossover comparison was hemolysis, as measured by the time-adjusted AUEC of LDH, according to treatment assigned during each of the 14-week assessments during Periods 1 and 2.

Secondary Endpoints

Mean Total Complement (50% Total Hemolytic Complement Activity [CH50])
Baseline, Week 27, Week 39, Week 53, Week 65, and Week 79
Mean Total Hemoglobin Levels
Baseline, Week 27, Week 39, Week 53, Week 65, and Week 79
Mean Serum-free Hemoglobin Levels
Baseline, Week 27, Week 39, Week 53, Week 65, and Week 79
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelCROSSOVER
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
T (ABP 959) / R (eculizumab)OTHERABP 959 for 52 weeks in Period 1 followed by eculizumab for 26 weeks in Period 2
R (eculizumab) / T (ABP 959)OTHEREculizumab for 52 weeks in Period 1 followed by ABP 959 for 26 weeks in Period 2

Interventions

NameTypeDescription
ABP 959DRUGintravenous infusion
EculizumabDRUGintravenous infusion
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites24

Inclusion Criteria: * Men and women ≥ 18 years of age. * Historical diagnosis of PNH. * Administration of eculizumab for ≥ 6 months and currently receiving 900 mg of eculizumab. * Hemoglobin ≥ 9.0 g/dL for at least 6 weeks before randomization. * Lactate dehydrogenase \< 1.5 × the upper limit of no...

Countries:United StatesCzechiaFinlandFranceIrelandItalyNetherlandsNorwayPortugalSloveniaSpainSwedenTurkey (Türkiye)United Kingdom
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Frequently asked questions about ABP 959

What is ABP 959 used for?

ABP 959 is an investigational small molecule being developed for the treatment of paroxysmal nocturnal hemoglobinuria (PNH), a rare hematologic disorder. It is currently in Phase 3 clinical development and has not been approved by regulatory authorities.

Who makes ABP 959?

ABP 959 is being developed by Amgen Inc., a biopharmaceutical company traded on the NASDAQ under the ticker symbol AMGN. The company is conducting clinical trials to evaluate the drug's efficacy and safety in patients with paroxysmal nocturnal hemoglobinuria.

What phase is ABP 959 in?

ABP 959 is in Phase 3 clinical development. It is an investigational drug and has not been approved by the FDA or other regulatory agencies. The drug is being studied for the treatment of paroxysmal nocturnal hemoglobinuria, a rare blood disorder.

What clinical trials is ABP 959 in?

ABP 959 has one completed Phase 3 clinical trial, NCT03818607, which evaluated the efficacy and safety of ABP 959 compared with eculizumab in adult participants with paroxysmal nocturnal hemoglobinuria. The trial enrolled 42 participants across multiple countries, including the United States and several European nations.

Is ABP 959 the same as eculizumab?

ABP 959 is not the same as eculizumab. It is an investigational drug being studied as a potential alternative to eculizumab. The Phase 3 trial NCT03818607 directly compared ABP 959 with eculizumab in patients with paroxysmal nocturnal hemoglobinuria to assess its efficacy and safety.