Safety and Tolerability of M254 in Healthy Volunteers and Immune Thrombocytopenic Purpura (ITP) Patients
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ClinicalTrials.gov Identifier: NCT03866577 |
Recruitment Status :
Recruiting
First Posted : March 7, 2019
Last Update Posted : December 16, 2020
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Immune Thrombocytopenic Purpura (ITP) | Biological: Biological: M254 Drug: Placebo Biological: Intravenous immunoglobulin (IVIg) | Phase 1 Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 70 participants |
Allocation: | Randomized |
Intervention Model: | Sequential Assignment |
Masking: | None (Open Label) |
Masking Description: | Part A: Double (Subject, Investigator); Part B, C, and D: Open Label Investigations |
Primary Purpose: | Treatment |
Official Title: | A 4-part Phase 1/2 Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of M254 in Healthy Volunteers and in Patients With Immune Thrombocytopenic Purpura |
Actual Study Start Date : | January 28, 2019 |
Estimated Primary Completion Date : | April 2022 |
Estimated Study Completion Date : | June 2022 |

Arm | Intervention/treatment |
---|---|
Experimental: Part A
Healthy volunteers will receive a single ascending dose of M254 or placebo
|
Biological: Biological: M254
M254 administered as intravenous infusion Drug: Placebo Placebo administered as intravenous infusion |
Experimental: Part B
Immune thrombocytopenic purpura (ITP) patients will receive a single ascending dose of M254 followed by IVIg
|
Biological: Biological: M254
M254 administered as intravenous infusion Biological: Intravenous immunoglobulin (IVIg) IVIg administered as intravenous infusion |
Experimental: Part C
ITP patients will receive a single dose of M254 or IVIg, followed by a single dose of the other drug approximately 28 days later
|
Biological: Biological: M254
M254 administered as intravenous infusion Biological: Intravenous immunoglobulin (IVIg) IVIg administered as intravenous infusion |
Experimental: Part D
ITP patients will receive repeated doses of M254
|
Biological: Biological: M254
M254 administered as intravenous infusion |
- Number and Severity of Adverse Events (AEs) - Part A [ Time Frame: Up to approximately Day 29 ]
- Frequency of Clinically Significant Abnormalities in Clinical Safety Laboratory Values - Part A [ Time Frame: Up to approximately Day 29 ]
- Shift From Baseline in Clinically Significant Abnormalities for Clinical Safety Laboratory Values - Part A [ Time Frame: Up to approximately Day 29 ]
- Frequency of Clinically Significant Abnormalities in Vital Signs - Part A [ Time Frame: Up to approximately Day 29 ]
- Shift From Baseline in Clinically Significant Abnormalities for Vital Signs - Part A [ Time Frame: Up to approximately Day 29 ]
- Frequency of Clinically Significant Abnormalities in Electrocardiograms (ECGs) - Part A [ Time Frame: Up to approximately Day 29 ]
- Shift From Baseline in Clinically Significant Abnormalities for Electrocardiograms (ECGs) - Part A [ Time Frame: Up to approximately Day 29 ]
- Number and Severity of AEs - Part B [ Time Frame: Up to approximately Day 29 ]
- Frequency of Clinically Significant Abnormalities in Clinical Safety Laboratory Values - Part B [ Time Frame: Up to approximately Day 29 ]
- Shift From Baseline in Clinically Significant Abnormalities for Clinical Safety Laboratory Values - Part B [ Time Frame: Up to approximately Day 29 ]
- Frequency of Clinically Significant Abnormalities in Vital Signs - Part B [ Time Frame: Up to approximately Day 29 ]
- Shift From Baseline in Clinically Significant Abnormalities for Vital Signs - Part B [ Time Frame: Up to approximately Day 29 ]
- Frequency of Clinically Significant Abnormalities in ECGs - Part B [ Time Frame: Up to approximately Day 29 ]
- Shift From Baseline in Clinically Significant Abnormalities for ECGs - Part B [ Time Frame: Up to approximately Day 29 ]
- Number and Severity of AEs - Part C [ Time Frame: Up to approximately Day 29 ]
- Frequency of Clinically Significant Abnormalities in Clinical Safety Laboratory Values - Part C [ Time Frame: Up to approximately Day 29 ]
- Shift From Baseline in Clinically Significant Abnormalities for Clinical Safety Laboratory Values - Part C [ Time Frame: Up to approximately Day 29 ]
- Frequency of Clinically Significant Abnormalities in Vital Signs - Part C [ Time Frame: Up to approximately Day 29 ]
- Shift From Baseline in Clinically Significant Abnormalities for Vital Signs - Part C [ Time Frame: Up to approximately Day 29 ]
- Frequency of Clinically Significant Abnormalities in ECGs - Part C [ Time Frame: Up to approximately Day 29 ]
- Shift From Baseline in Clinically Significant Abnormalities for ECGs - Part C [ Time Frame: Up to approximately Day 29 ]
- Measurement of Changes in Platelet Counts After M254 Administration Compared to IVIg - Part C [ Time Frame: Baseline to approximately Day 29 ]
- Number and Severity of AEs - Part D [ Time Frame: Up to approximately Day 71 ]
- Frequency of Clinically Significant Abnormalities in Clinical Safety Laboratory Values - Part D [ Time Frame: Up to approximately Day 71 ]
- Shift From Baseline in Clinically Significant Abnormalities for Clinical Safety Laboratory Values - Part D [ Time Frame: Up to approximately Day 71 ]
- Frequency of Clinically Significant Abnormalities in Vital Signs - Part D [ Time Frame: Up to approximately Day 71 ]
- Shift From Baseline in Clinically Significant Abnormalities for Vital Signs - Part D [ Time Frame: Up to approximately Day 71 ]
- Frequency of Clinically Significant Abnormalities in ECGs - Part D [ Time Frame: Up to approximately Day 71 ]
- Shift From Baseline in Clinically Significant Abnormalities for ECGs - Part D [ Time Frame: Up to approximately Day 71 ]
- Maximum Plasma Concentration (Cmax) of M254 - Part A, B, and C [ Time Frame: Day 1 to Day 29 ]
- Time to Maximum Plasma Concentration (Tmax) of M254 - Part A, B, and C [ Time Frame: Day 1 to Day 29 ]
- Area Under the Concentration-time Curve From Zero to Time of Last Measurable Concentration Area [AUC(0 last)] of M254 - Part A, B, and C [ Time Frame: Day 1 to Day 29 ]
- Area Under the Concentration-time Curve From Zero to Infinity [AUC(0 ∞)] of M254 - Part A, B, and C [ Time Frame: Day 1 to Day 29 ]
- Volume of Distribution (Vd) of M254 - Part A, B, and C [ Time Frame: Day 1 to Day 29 ]
- Clearance of Drug (CL) M254 - Part A, B, and C [ Time Frame: Day 1 to Day 29 ]
- Mean Residence Time (MRT) of M254 - Part A, B, and C [ Time Frame: Day 1 to Day 29 ]
- Apparent Terminal-phase Half-life (t½) of M254 - Part A, B, and C [ Time Frame: Day 1 to Day 29 ]
- Cmax of M254 - Part D [ Time Frame: Day 1 to Day 71 ]
- Tmax of M254 - Part D [ Time Frame: Day 1 to Day 71 ]
- AUC(0 last) of M254 - Part D [ Time Frame: Day 1 to Day 71 ]
- AUC(0 ∞) of M254 - Part D [ Time Frame: Day 1 to Day 71 ]
- Vd of M254 - Part D [ Time Frame: Day 1 to Day 71 ]
- CL of M254 - Part D [ Time Frame: Day 1 to Day 71 ]
- MRT of M254 - Part D [ Time Frame: Day 1 to Day 71 ]
- t½ of M254 - Part D [ Time Frame: Day 1 to Day 71 ]
- Measurements of Changes in Platelet Counts After M254 Administration - Part D [ Time Frame: Baseline to approximately Day 71 ]

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Key Criteria for Healthy Volunteers: Subject must be between the ages of 18 and 55 years; healthy as indicated by medical history, physical examination, vital signs, clinical laboratory tests, and 12-lead electrocardiogram, and all abnormal findings are assessed as not clinically significant by the Investigator; not pregnant or breastfeeding; and no other clinically relevant abnormalities currently or in their history that the Investigator would deem them ineligible to participate.
Key Criteria for Immune Thrombocytopenic Purpura (ITP) Patients: Patient must be aged ≥18 years and diagnosed with ITP at least 3 months prior to screening, stable maintenance therapy for at least 4 weeks prior to the first study visit, not pregnant or breastfeeding, and no other clinically relevant abnormalities currently or in their history that the Investigator would deem them ineligible to participate.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03866577
Contact: Momenta General Queries | +1 617-491-9700 | ClinicalTrialInfo@momentapharma.com |
United States, California | |
Momenta Investigational Site | Not yet recruiting |
Los Angeles, California, United States, 90089 | |
United States, Florida | |
Momenta Investigational Site | Recruiting |
Miami Lakes, Florida, United States, 33176 | |
Momenta Investigational Site | Recruiting |
Saint Petersburg, Florida, United States, 33701 | |
United States, North Carolina | |
Momenta Investigational Site | Not yet recruiting |
Durham, North Carolina, United States, 27705 | |
United States, Ohio | |
Momenta Investigational Site | Recruiting |
Cleveland, Ohio, United States, 44106 | |
Momenta Investigational Site | Not yet recruiting |
Cleveland, Ohio, United States, 44195 | |
Belgium | |
Momenta Investigational Site | Recruiting |
Yvoir, Namur, Belgium, 5530 | |
France | |
Momenta Investigational Site | Withdrawn |
Le Mans Cedex 9, Pays De La Loire, France, 72037 | |
Germany | |
Momenta Investigational Site | Withdrawn |
Aschaffenburg, Bayern, Germany, 63739 | |
Hungary | |
Momenta Investigational Site | Recruiting |
Pecs, Baranya, Hungary, 7643 | |
Momenta Investigational Site | Recruiting |
Debrecen, Hajdu-Bihar, Hungary, 4032 | |
Momenta Investigational Site | Recruiting |
Kaposvar, Somogy, Hungary, 7400 | |
Italy | |
Momenta Investigational Site | Recruiting |
San Giovanni Rotondo, Foggia, Italy, 71013 | |
Momenta Investigational Site | Recruiting |
Meldola, Forli-Cesena, Italy, 47014 | |
Momenta Investigational Site | Recruiting |
Reggio emilia, Reggio Nella Emilia, Italy, 42123 | |
Momenta Investigational Site | Recruiting |
Ravenna, Italy, 48100 | |
Momenta Investigational Site | Recruiting |
Roma, Italy, 86100 | |
Netherlands | |
Momenta Investigational Site | Recruiting |
Groningen, Netherlands, 9713 GZ | |
Momenta Investigational Site | Completed |
Groningen, Netherlands, 9728 NZ | |
Poland | |
Momenta Investigational Site | Recruiting |
Wroclaw, Dolnoslaskie, Poland, 50-367 | |
Momenta Investigational Site | Recruiting |
Lublin, Lubelskie, Poland, 20-001 | |
Momenta Investigational Site | Recruiting |
Chorzow, Slaskie, Poland, 41-503 | |
Momenta Investigational Site | Recruiting |
Poznan, Wielkopolskie, Poland, 61-828 | |
Momenta Investigational Site | Recruiting |
Opole, Poland, 45-061 | |
Spain | |
Momenta Investigational Site | Recruiting |
Barcelona, Spain, 08035 | |
Momenta Investigational Site | Recruiting |
Burgos, Spain, 09006 | |
Momenta Investigational Site | Recruiting |
Malaga, Spain, 29010 | |
Momenta Investigational Site | Recruiting |
Murcia, Spain, 30008 | |
Momenta Investigational Site | Recruiting |
Salamanca, Spain, 37007 | |
Momenta Investigational Site | Recruiting |
Valencia, Spain, 46017 |
Study Director: | Momenta General Queries | Momenta Pharmaceuticals, Inc. |
Responsible Party: | Momenta Pharmaceuticals, Inc. |
ClinicalTrials.gov Identifier: | NCT03866577 |
Other Study ID Numbers: |
MOM-M254-001 2018-003534-32 ( EudraCT Number ) |
First Posted: | March 7, 2019 Key Record Dates |
Last Update Posted: | December 16, 2020 |
Last Verified: | December 2020 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Immune thrombocytopenic purpura Healthy subjects M254 Intravenous immunoglobulin (IVIg) |
Purpura Purpura, Thrombocytopenic Purpura, Thrombocytopenic, Idiopathic Blood Coagulation Disorders Hematologic Diseases Hemorrhage Pathologic Processes Skin Manifestations Thrombotic Microangiopathies Thrombocytopenia Blood Platelet Disorders |
Immune System Diseases Hemorrhagic Disorders Autoimmune Diseases Immunoglobulins Immunoglobulins, Intravenous Antibodies gamma-Globulins Rho(D) Immune Globulin Immunologic Factors Physiological Effects of Drugs |