Immune ThrombocytopeniaPhase 2NCT02338414
An Observational Study to Evaluate the Efficacy of Biweekly Romiplostim in Adult Patients With ITP
A Phase 2 study testing Romiplostim in people with Immune Thrombocytopenia, run by Samsung Medical Center.
Trial summary
The aim of this study is to evaluate the efficacy of romiplostim administered at every other week in ITP patients who attained stable platelet counts ≥ 50 x 109/L for 4 consecutive weeks after weekly doses of romiplostim. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Immune Thrombocytopenia
- What is being tested?
- Romiplostim
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 20 participants
- Where
- No sites listed yet
- Study dates
- Jan 2015to Jan 2016
- Phase
- Phase 2
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Subject has an ability to provide written informed consent prior to participating to the study
- Subject is male or female ≥ 18 years of age
- Subject has a diagnosis of immune thrombocytopenia (ITP) per the American Society of Hematology guidelines.
- Subject received at least 1 prior therapy for ITP including corticosteroids, immunoglobulin, or splenectomy, but had an insufficient response to any of these treatment (PLT count should be < 30x109/L before romiplostim initiation.)
- If subject had ever received TPO receptor agonist before, the patient can participate this study only after 8 weeks' wash out period
Who cannot join
- Subject has a history of hematological malignancy, myeloproliferative disorder, myelodysplastic syndrome (MDS), or bone marrow stem cell disorder
- Subject has participated in any study evaluating PEG-rHuMGDF, recombinant human thrombopoietin (rHuTPO), or related platelet product within 8 weeks
- Subject has a known hypersensitivity to any recombinant E coli-derived product
- Subject has received any therapeutic drug or device that is not approved by the local regulatory health agency for any indication within 4 weeks of Screening
- Subject is of reproductive potential and is not using adequate contraceptive precautions, in the judgment of the investigator
- Subject is pregnant or breast feeding
Trial locations and contacts
No sites are listed yet.
About this study
Official title: An Observational Study to Evaluate the Efficacy of Romiplostim Administered at Every Other Week in Adult Patients With Chronic Immune Thrombocytopenia (ITP) Who Attained Platelet Counts ≥ 50 x 109/L After Weekly Doses of Romiplostim
The aim of this study is to evaluate the efficacy of romiplostim administered at every other week in ITP patients who attained stable platelet counts ≥ 50 x 109/L for 4 consecutive weeks after weekly doses of romiplostim.
Read the detailed description
Regarding the determination of appropriate dose, it is well known that romiplostim resulted in dose-dependent increases in platelet counts, but required dose for raising platelet count is variable between individuals according to each patient's ability to eliminate serum romiplostim. Because of this variability, after administration of initial 1mcg/kg of romiplostim, dose adjustment is recommended based on the platelet response to given dose of romiplostim. However, the optimal dose interval of romiplostim has rarely been studied. In pivotal studies, romiplostim was administered on a weekly schedule, and based on these studies, one dose at every week is being widely used. In one study in which ITP patients received weekly subcutaneous doses of romiplostim at a range from 3 to 15mcg/kg, half life of romiplostim was estimated from 1 to 34 days, suggesting that lengthening the interval between doses more than a week can be potentially possible in some patients.
- Conditions
- Immune Thrombocytopenia
- Being tested
- Romiplostim
- Medical subject headings
- Purpura, Thrombocytopenic, Idiopathic
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
RomiplostimDrug
Also called Nplate
Subcutaneous Romiplostim (weekly injection) -> if titrated with maintaining PLT count between 50-200 x 10^9/L -> Subcutaneous Romiplostim (biweekly injection)
| Study group | Role | What they receive |
|---|---|---|
| Romiplostim | Other | Patients receiving romiplostim due to ITP Receives: Drug: Romiplostim |
What is being measured
The primary outcome is the main question the study is designed to answer.
Efficacy of biweekly romiplostim (platelet counts ≥ 30 x 10^9/L)
To evaluate the proportion of patients who had platelet counts ≥ 30 x 109/L during 4 or more weeks with biweekly romiplostim
Measured: up to 24 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Jan 2015 (estimated)
- Study startJan 2015
- Primary completionDec 2015 (estimated)
- Study completionJan 2016 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Immune ThrombocytopeniaStudies of the same condition, open and under way.
- More trials run by Samsung Medical CenterThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 20 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Samsung Medical Center
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Jun Ho Jang, Samsung Medical Center
- Investigators
- Jong Wook Lee, M.D., Principal investigator, Seoul St. Mary's Hospital, The Catholic University of Korea
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02338414
- Sponsor's protocol ID
- NPT-I001
- Status last verified
- Jan 2015
- First submitted
- 6 Jan 2015
- Last updated
- 14 Jan 2015
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 14 Jan 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- An Observational Study to Evaluate the Efficacy of Romiplostim Administered at Every Other Week in Adult Patients With Chronic Immune Thrombocytopenia (ITP) Who Attained Platelet Counts ≥ 50 x 109/L After Weekly Doses of Romiplostim
- ClinicalTrials.gov ID
- NCT02338414
- Acronym / sponsor ID
- NPT-I001
- Conditions
- Immune Thrombocytopenia
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 20 participants (estimated)
- Lead sponsor
- Samsung Medical CenterUniversity, hospital or other
- Study start
- Jan 2015
- Primary completion
- Dec 2015 (estimated)
- Study completion
- Jan 2016 (estimated)
- First posted
- 14 Jan 2015 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this study is to evaluate the efficacy of romiplostim administered at every other week in ITP patients who attained stable platelet counts ≥ 50 x 109/L for 4 consecutive weeks after weekly doses of romiplostim.
Detailed description
Regarding the determination of appropriate dose, it is well known that romiplostim resulted in dose-dependent increases in platelet counts, but required dose for raising platelet count is variable between individuals according to each patient's ability to eliminate serum romiplostim. Because of this variability, after administration of initial 1mcg/kg of romiplostim, dose adjustment is recommended based on the platelet response to given dose of romiplostim. However, the optimal dose interval of romiplostim has rarely been studied. In pivotal studies, romiplostim was administered on a weekly schedule, and based on these studies, one dose at every week is being widely used. In one study in which ITP patients received weekly subcutaneous doses of romiplostim at a range from 3 to 15mcg/kg, half life of romiplostim was estimated from 1 to 34 days, suggesting that lengthening the interval between doses more than a week can be potentially possible in some patients.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Romiplostim | Other | Drug: RomiplostimPatients receiving romiplostim due to ITP |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Subject has an ability to provide written informed consent prior to participating to the study
- Subject is male or female ≥ 18 years of age
- Subject has a diagnosis of immune thrombocytopenia (ITP) per the American Society of Hematology guidelines.
- Subject received at least 1 prior therapy for ITP including corticosteroids, immunoglobulin, or splenectomy, but had an insufficient response to any of these treatment (PLT count should be < 30x109/L before romiplostim initiation.)
- If subject had ever received TPO receptor agonist before, the patient can participate this study only after 8 weeks' wash out period
Key exclusion criteria (6 listed)
- Subject has a history of hematological malignancy, myeloproliferative disorder, myelodysplastic syndrome (MDS), or bone marrow stem cell disorder
- Subject has participated in any study evaluating PEG-rHuMGDF, recombinant human thrombopoietin (rHuTPO), or related platelet product within 8 weeks
- Subject has a known hypersensitivity to any recombinant E coli-derived product
- Subject has received any therapeutic drug or device that is not approved by the local regulatory health agency for any indication within 4 weeks of Screening
- Subject is of reproductive potential and is not using adequate contraceptive precautions, in the judgment of the investigator
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| RomiplostimAlso: NplateSubcutaneous Romiplostim (weekly injection) -> if titrated with maintaining PLT count between 50-200 x 10^9/L -> Subcutaneous Romiplostim (biweekly injection) | Drug | Romiplostim |
Primary outcome
Efficacy of biweekly romiplostim (platelet counts ≥ 30 x 10^9/L)
Time frame: up to 24 weeks
To evaluate the proportion of patients who had platelet counts ≥ 30 x 109/L during 4 or more weeks with biweekly romiplostim
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Jan 2015.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Jong Wook Lee, M.D. principal investigator
Seoul St. Mary's Hospital, The Catholic University of Korea
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Romiplostim in people with Immune Thrombocytopenia, run by Samsung Medical Center.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 14 Jan 2015. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Jun Ho Jang, M.D. Ph.D. (+82-2-3410-0918, smcjunhojang@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Efficacy of biweekly romiplostim (platelet counts ≥ 30 x 10^9/L) (time frame: up to 24 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Jan 2015.