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ThrombocytopeniaPhase 2/3Haplo-HSCTNCT06202625

Efficacy and Safety of Avatrombopag in the Treatment of Thrombocytopenia After Haplo-HSCT

A Phase 2/3 study testing avatrombopag in people with Thrombocytopenia and Stem Cell Transplant Complications, run by Peking University People's Hospital at 14 sites in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

In this study, investigators aim to evaluate the efficacy of avatrombopag in thrombocytopenic patients after haploidentical hematopoietic stem cell transplantation (haplo-HSCT) through a prospective, multi-center, double-blinded, randomized placebo-controlled clinical trial. Read more about this study

Who is it for?
Ages 18 to 65 years
What is being tested?
avatrombopag
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
142 participants
Where
14 sitesChina
Study dates
13 May 2024to 30 Oct 2025
Phase
Phase 2/3
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 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female, aged between 18-65 years;
  • PLT<20×10^9/L or transfusion dependent on +D7 after haplo-HSCT;
  • Agree to receive the treatment of avatrombopag after Haplo-HSCT and sign the informed consent form.

Who cannot join

  • With active infection;
  • ALT or AST>3ULN, or total Bil>2ULN
  • Ccr<50 mL/min;
  • With the history of arteriovenous thrombosis;
  • With history of cardiovascular disease (such as NYHA Class III/IV congestive heart failure, arrhythmia that increases the risk of thromboembolic events [such as atrial fibrillation] and angina), and subjects who have undergone coronary stent implantation, angioplasty, or coronary artery bypass grafting;
  • With treatment of drugs to promote platelet production two weekes before enrollment, including but not limited to rhTPO and TPO-RA;
Show all 13Show fewer
  • HBsAg or anti-HCV or anti-HIV positive;
  • Known to be allergic to avatrombopag and any of its excipients;
  • With secondary or multiple HSCT;
  • Females who were pregnant or breastfeeding or who had fertile ability but refuse to take effective contraceptive measures during and one month after this trial;
  • With any other clinical trial of investigational product or device within 30 days prior to the baseline visit, except for observational study;
  • Deemed unsuitable for enrollment by the investigator for any history of or concomitant medical condition.
  • Concomitant medication:The rhIL-11, rhTPO or TPO-RA(such as eltrombopag, hetrombopag and romiplostim) and desitabine, etc. were not allowed for use during this trial.

Trial locations and contacts

14 sites in 1 country.

14 sites in 1 country

China14 sites, 14 recruiting
  • Peking University People's Hospital

    Beijing, Beijing Municipality, 100044

    Xiaohui Zhang, MD, zhangxiaohui@bjmu.edu.cn

    Haixia Fu, MD, 13581830157, fuhaixia_210@163.com

    Recruiting
  • Xiangya Hospital, Central South University

    Changsha, Hunan, 410008

    Yajing Xu

    Not yet recruiting
  • Xinqiao Hospital, Army Military Medical University

    Chongqing, Sichuan

    Xi Zhang

    Not yet recruiting
  • Guangzhou First People's Hospital, School of Medicine, South China University of Technology

    Guangzhou, Guangdong

    Shunqing Wang

    Not yet recruiting
  • The First Affiliated Hospital, Harbin Medical University

    Harbin, Heilongjiang

    Shengjin Fan

    Not yet recruiting
  • 920th Hospital of Joint Logistics Support Force of People's Liberation Army of China

    Kunming, Yunnan, 650100

    Sanbin Wang, Sanbin1011@163.com

    Not yet recruiting
  • The First Affiliated Hospital of Nanchang University

    Nanchang, Jiangxi

    Fei Li

    Not yet recruiting
  • Peking University Shenzhen Hospital

    Shenzhen, Guangdong

    Hongyu Zhang

    Recruiting
  • Shanxi Tumor Hospital Affiliated to Shanxi Medical University

    Taiyuan, Shanxi

    Liping Su

    Not yet recruiting
  • Chinese Academy of Medical Sciences & Peking Union Medical College

    Tianjin

    Erlie Jiang

    Not yet recruiting
  • Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology

    Wuhan, Hubei

    Yicheng Zhang

    Not yet recruiting
  • Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

    Wuhan, Hubei

    Linghui Xia

    Not yet recruiting
  • Tangdu Hospital, PLA Air Force Military Medical University

    Xi’an, Shanxi

    Li Liu

    Not yet recruiting
  • The First Affiliated Hospital of Zhengzhou University

    Zhengzhou, Henan

    Zhongxing Jiang

    Not yet recruiting

Other trials in China

About this study

Official title: Efficacy and Safety of Avatrombopag in the Treatment of Thrombocytopenia After Haploidentical Hematopoietic Stem Cell Transplantation: Prospective, Multi-center, Double-blinded, Randomized Placebo-controlled Study

In this study, investigators aim to evaluate the efficacy of avatrombopag in thrombocytopenic patients after haploidentical hematopoietic stem cell transplantation (haplo-HSCT) through a prospective, multi-center, double-blinded, randomized placebo-controlled clinical trial.

Read the detailed description

Thrombocytopenia is a common and severe complication after haplo-HSCT, including primary isolated thrombocytopenia (PIT) and secondary failure of platelet recovery (SFPR), which may cause bleeding and infection, and thus influence the OS, DFS, and NRM of the patients. Avatrombopag has been proved effective and safe in patients with chronic liver disease(CLD) and immune thrombocytopenia (ITP) and have been approved for CLD-associated thrombocytopenia undergoing elective invasive procedure (FDA\&NMPA) and ITP(FDA). Chinese consensus has recommended avatrombopag and some other thrombopoietin receptor agonists (TPO-RAs) to treat thrombocytopenia after haplo-HSCT. However, it lacks prospective studies to support that.Investigators aim to evaluate the efficacy of avatrombopag in thrombocytopenic patients after haplo-HSCT through a prospective, multi-center, double-blinded, randomized placebo-controlled clinical trial.

The patients with PLT<20×10^9/L or transfusion dependent on the 7th day (+D7) after haplo-HSCT are included and assigned in a 1:1 randomization schedule to the avatrombopag group (receiving avatrombopag, n=71)and the placebo group (receiving placebo, n=71). The primary endpoint is the proportion of participants whose PLT≥50×10^9/L on +D60 after haplo-HSCT without the need for PLT transfusion for 7 consecutive days or above. Second endpoints includ the proportion of participants whose PLT≥100×10^9/L on +D60 after haplo-HSCT without the need for PLT transfusion for 7 consecutive days or above, the proportion of participants whose PLT≥20×10^9/L and whose PLT≥50×10^9/L on +D30 after haplo-HSCT without the need for PLT transfusion for 7 consecutive days or above, the proportion of participants whose PLT≥50×10^9/L and whose PLT≥100×10^9/L on +D90 after haplo-HSCT without the need for PLT transfusion for 7 consecutive days or above, the first day to achieve PLT≥20×10^9/L and PLT≥50×10^9/L and PLT≥100×10^9/L without the need for PLT transfusion for consecutive 7 days and above within +D60 after haplo-HSCT, the percentage of participants who need PLT transfusion and the average count of PLT from +D7 to + D60 after haplo-HSCT, the first day and the percentage of participants to achieve absolute neutrophil≥500/μL for consecutive 3 days within +D30 after haplo-HSCT, the graft-versus-host disease(GVHD), infection, the overall survival(OS),the disease free survival(DFS) and the non-relapse mortality(NRM) rates of participants within the first year after haplo-HSCT.

Being tested
avatrombopag, Placebo
Keywords
Thrombocytopenia, hematopoietic stem cell transplantation, haploidentical
Medical subject headings
Thrombocytopenia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • avatrombopagDrug

    Also called Doptelet

    The avatrombopag 20mg/d will be orally taken from +D7 after haplo-HSCT until meeting the adjustment indication or to +D60 after haplo-HSCT; When PLT<50×10^9/L or PLT transfusion-dependent on the +D30 after haplo-HSCT, increase avatrombopag dosage to 40 mg/d; When PLT≥80×10^9/L and without PLT transfusion within avatrombopag dosage at 40 mg/d, decrease avatrombopag dosage to 20 mg/d; When PLT≥80×10^9/L for 7 consecutive days or PLT≥300×10^9/L and without PLT transfusion, stop avatrombopag; When PLT<50×10^9/L or PLT transfusion-dependent after stopping avatrombopag , reuse avatrombopag at 40 mg/d.

  • PlaceboDrug

    The placebo 20mg/d will be orally taken from +D7 after haplo-HSCT until meeting the adjustment indication or to +D60 after haplo-HSCT; When PLT<50×10^9/L or PLT transfusion-dependent on the +D30 after haplo-HSCT, increase placebo dosage to 40 mg/d; When PLT≥80×10^9/L and without PLT transfusion within placebo dosage at 40 mg/d, decrease placebo dosage to 20 mg/d; When PLT≥80×10^9/L for 7 consecutive days or PLT≥300×10^9/L and without PLT transfusion, stop placebo; When PLT<50×10^9/L or PLT transfusion-dependent after stopping placebo, reuse placebo at 40 mg/d.

Study groups in NCT06202625
Study groupRoleWhat they receive
avatrombopagExperimentalAvatrombopag 20 mg/d will be taken orally from +D7 after haplo-HSCT until reaching the adjustment indication or to +D60 after haplo-HSCT. Routine treatment is allowed. Adjustment indication: When PLT<50×10^9/L or PLT transfusion dependent on the +D30 after haplo-HSCT, increase the dosage to 40 mg/d; When the dosage has been increased to 40 mg/d, and PLT≥80×10^9/L excluding the factor of PLT transfusion, decrease the dosage to 20 mg/d; When PLT≥80×10^9/L for 7 consecutive days excluding the factor of PLT transfusion, or PLT≥300×10^9/L excluding the factor of PLT transfusion, stop administration; When PLT<50×10^9/L or become PLT transfusion dependent after stopping administration, initiate administration again at the dosage 40 mg/d. PLT transfusion Indication: When PLT<20×10^9/L, and/or with the symptom or risk of bleeding.
Receives: Drug: avatrombopag
PlaceboPlacebo comparatorPlacebo 20 mg/d will be taken orally from +D7 after haplo-HSCT until reaching the adjustment indication or to +D60 after haplo-HSCT. Routine treatment is allowed. Adjustment indication: When PLT<50×10^9/L or PLT transfusion dependent on the +D30 after haplo-HSCT, increase the dosage to 40 mg/d; When the dosage has been increased to 40 mg/d, and PLT≥80×10^9/L excluding the factor of PLT transfusion, decrease the dosage to 20 mg/d; When PLT≥80×10^9/L for 7 consecutive days excluding the factor of PLT transfusion, or PLT≥300×10^9/L excluding the factor of PLT transfusion, stop administration; When PLT<50×10^9/L or become PLT transfusion dependent after stopping administration, initiate administration again at the dosage 40 mg/d. PLT transfusion Indication: When PLT<20×10^9/L, and/or with the symptom or risk of bleeding.
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. the proportion of complete response(CR) on day 60 after haplo-HSCT

    the proportion of participants whose PLT≥50×10^9/L on day 60 after haplo-HSCT independent of PLT transfusion for 7 consecutive days or above

    Measured: from randomization to day 60 after haplo-HSCT

Secondary outcomes (10)
  1. the proportion of resonse(R)/remission on day 60 after haplo-HSCT

    the proportion of participants whose PLT≥20×10^9/L or PLT≥100×10^9/L on day 60 after haplo-HSCT independent of PLT transfusion for 7 consecutive days or above

    Measured: from randomization to day 60 after haplo-HSCT

  2. the proportion of R/CR on day 30 after haplo-HSCT

    the proportion of participants whose PLT≥20×10^9/L or PLT≥50×10^9/L on day 30 after haplo-HSCT independent of PLT transfusion for 7 consecutive days or above,respectively

    Measured: from randomization to day 30 after haplo-HSCT

  3. the proportion of CR/remission on day 90 after haplo-HSCT

    the proportion of participants whose PLT≥50×10^9/L or PLT≥100×10^9/L on day 90 after haplo-HSCT independent of PLT transfusion for 7 consecutive days or above

    Measured: from randomization to day 90 after haplo-HSCT

  4. Time to R/CR/remission

    the first day of the time to achieve PLT≥20×10^9/L and PLT≥50×10^9/L or PLT≥100×10^9/L independent of PLT transfusion for consecutive 7 days and above within 60 days after haplo-HSCT,respectively

    Measured: from randomization to day 60 after haplo-HSCT

  5. PLT transfusion dependence

    the percentage of participants who need PLT transfusion and the average volume of transfused PLT from day 7 to day 60 after haplo-HSCT

    Measured: from randomization to day 60 after haplo-HSCT

  6. neutrophil engraftment

    the first day and the percentage of participants to achieve absolute neutrophil≥500/μL for consecutive 3 days within 30 days after haplo-HSCT

    Measured: from randomization to day 30 after haplo-HSCT

  7. GVHD

    the incidece of graft versus host disease(GVHD)

    Measured: from randomization to 1 year after haplo-HSCT

  8. overall survival(OS)

    the 1-year OS of participants

    Measured: from randomization to 1 year after haplo-HSCT

  9. disease free survival(DFS)

    the 1-year DFS of participants

    Measured: from randomization to 1 year after haplo-HSCT

  10. non-relapse mortality(NRM)

    the 1-year NRM of participants

    Measured: from randomization to 1 year after haplo-HSCT

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Jan 2024
  2. Study start13 May 2024
  3. Primary completion30 Oct 2024 (estimated)
  4. Study completion30 Oct 2025 (estimated)

Resources

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 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
142 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06202625
Sponsor's protocol ID
2023PHD009-001
Acronym
Haplo-HSCT
Status last verified
Sep 2024
First submitted
14 Dec 2023
Last updated
1 Oct 2024
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing avatrombopag in people with Thrombocytopenia and Stem Cell Transplant Complications, run by Peking University People's Hospital at 14 sites in China.

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 3 inclusion and 13 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 1 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 14 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined 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.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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 Haixia Fu (13581830157, fuhaixia_210@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

the proportion of complete response(CR) on day 60 after haplo-HSCT (time frame: from randomization to day 60 after haplo-HSCT). 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 1 Oct 2024.

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