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Relapsed/Refractory Peripheral T-Cell Lymphoma (R/R PTCL)Phase 1/2NCT06909877

Study to Evaluate Efficacy and Safety of HH2853 in Relapsed/Refractory Peripheral T-cell Lymphoma

A Phase 1/2 study testing HH2853 Tablets in people with Relapsed/Refractory Peripheral T-Cell Lymphoma (R/R PTCL), run by Haihe Biopharma Co., Ltd. at 1 site in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This study is a an open-label, multinational, multicenter, single-arm Phase Ⅰb/Ⅱ Study to Evaluate Efficacy and Safety of Oral HH2853 in Patients with Relapsed/Refractory Peripheral T-cell Lymphoma. Read more about this study

Who is it for?
Ages 18 to 75 years
What is being tested?
HH2853 Tablets
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
100 participants
Where
1 siteChina
Study dates
27 Jul 2022to 30 Jul 2027
Phase
Phase 1/2
Are there results?
Not yet: the study is under way

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 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • main inclusion:
  • Tumor types and prior antitumor therapy: Phase Ib:Dose Escalation: All enrolled patients must have histologically confirmed diagnosis NHL who have received at least one line of prior systematic treatment (and ≤ 5 lines) and relapses or refractory. Phase Ib dose expansion part: All enrolled patients must have histologically confirmed diagnosis of PTCL, including subtypes: PTCL-NOS, AITL, ALK + ALCL, ALK-ALCL, NKTCL, enteropathy associated T-cell lymphoma (EATL), monomorphic epitheliotropic internal T-cell lymphoma (MEITL), Hepatosplenic T-cell lymphoma (HSTCL), follicular T-cell lymphoma (FTCL), Nodal peripheral T-cell lymphoma with TFH phenotype (Nodal PTCL-TFH) and other invasive T-cell sources NHL at the investigator and sponsor's discretion (except highly invasive). All enrolled patients had relapsed or refractory diseases after receiving 1-line systematic treatment (≤ 3 lines). Phase II: All enrolled patients must have histologically confirmed diagnosis of PTCL, including subtypes: PTCL-NOS, AITL, ALK+ALCL, ALK-ALCL, NKTCL, EATL, MEITL, HSTCL, FTCL, Nodal PTCL-TFH et al. Patients must have histologically confirmed diagnosis of R/R PTCL who have received at least one line of prior systematic combination chemotherapy and at least one new drug therapy (prior antitumor treatment lines ≤4 lines) : relapse and/or refractory.
  • Availability of qualified tissue samples by patient for pathological diagnosis by the central laboratory.
  • The Eastern cooperative oncology group (ECOG) score 0-1.
  • Life expectancy ≥ 3 months before starting HH2853 treatment.
  • Sufficient bone marrow, liver and renal functions.

Who cannot join

  • main criteria:
  • Previous treatment with EZH2 or EZH1/2 inhibitors.
  • Central nervous system invasion.
  • Any previous history of bone marrow malignancy, including myelodysplastic syndrome (MDS).
  • Received medications that are known potent CYP3A4 inducers/inhibitors within 1 week prior to first dose.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

China1 site, 1 recruiting
  • Sichuan Cancer Hospital

    Chengdu, Chengdu

    Huangming Hong, MD, 86-13570431657, honghm3@mail.sysu.edu.cn

    Recruiting

Other trials in China

About this study

Official title: An Open-label, Multinational, Multicenter, Single-arm Phase Ⅰb/Ⅱ Study to Evaluate Efficacy and Safety of Oral HH2853, a Selective EZH1/2 Inhibitor, in Patients With Relapsed/Refractory Peripheral T-cell Lymphoma

This study is a an open-label, multinational, multicenter, single-arm Phase Ⅰb/Ⅱ Study to Evaluate Efficacy and Safety of Oral HH2853 in Patients with Relapsed/Refractory Peripheral T-cell Lymphoma.

Read the detailed description

This study includes Phase Ib and Phase II. In the Phase Ib, patients with R/R NHL (dose escalation) or R/R PTCL (dose expansion) who have received at least 1 line of prior systematic treatment and meet the inclusion/exclusion criteria in the protocol will be enrolled. Safety run-in study (Japan only): The objective of the safety run-in study in Japan is to evaluate the safety, tolerability, and PK profile of HH2853 in Japanese patients. The primary objective of the Phase Ib study is to determine the RP2D of HH2853 in PTCL patients. The secondary objectives are to evaluate the safety, preliminary efficacy and characterize the pharmacokinetic profile of HH2853 in R/R PTCL patients. A "3+3" design will be used in the dose escalation part with a starting dose of 400 mg BID. Based on the safety, efficacy and PK/PD data and HH2853-G101 data, 1-2 dose levels could be expanded, 10-15 R/R PTCL patients for each dose level. Approximately 21-48 patients will be enrolled in total.

In the Phase II (multi-national): patients with R/R PTCL who have received at least one prior systemic combination chemotherapy and at least one new drug therapy and meet the inclusion/exclusion criteria in the protocol will be enrolled. The Phase II study will be started once the RP2D is determined. The Phase II study is a single-arm study and will be enrolled in approximately 66 efficacy-evaluable R/R PTCL patients who had received at least one prior systemic combination chemotherapy and at least one new drug therapy. The primary objective of the Phase II study is to evaluate the efficacy of HH2853 of R/R PTCL patients who have received at least one prior systemic combination chemotherapy and at least one new drug therapy (ORR, BIRC evaluation); The secondary objectives will be continued to further evaluate the efficacy, safety, tolerability and PK characteristics of HH2853 of R/R PTCL patients who have received at least 1 line of prior systemic therapy.

Being tested
HH2853 Tablets
Keywords
Relapsed/Refractory, Peripheral T-cell Lymphoma
Medical subject headings
Recurrence, Lymphoma, T-Cell, Peripheral

What participants receive

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

  • HH2853 TabletsDrug

    Also called HH2853

    25mg, 100mg and 200 mg BID oral administration

Study groups in NCT06909877
Study groupRoleWhat they receive
Dose escalation and expansion study of HH2853ExperimentalTo determine the RP2D of HH2853 in PTCL patients.
Receives: Drug: HH2853 Tablets

What is being measured

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

  1. Phase Ib: To determine the RP2D of HH2853 in PTCL patients

    Determine RP2D of HH2853

    Measured: 28-day treatment cycles

  2. Phase II: To evaluate the efficacy of HH2853 of R/R PTCL patients who have received at least one prior systemic combination chemotherapy and at least one new drug

    ORR will be based on the blinded independent review committee (BIRC). Assessment of oncologic response will be performed according to the 2014 edition of the Lugano Criteria for Efficacy [Lugano]

    Measured: 28-day treatment cycles

Secondary outcomes (25)
  1. Phase Ib: 1. Preliminary efficacy of HH2853 in R/R PTCL patients;

    Investigator assessed: complete response rate (CRR)

    Measured: 28-day treatment cycles

  2. Phase Ib: 1. Preliminary efficacy of HH2853 in R/R PTCL patients;

    Duration of response (DoR)

    Measured: 28-day treatment cycles

  3. Phase Ib: 1. Preliminary efficacy of HH2853 in R/R PTCL patients;

    Disease control rate (DCR)

    Measured: 28-day treatment cycles

  4. Phase Ib: 1. Preliminary efficacy of HH2853 in R/R PTCL patients;

    Time to response (TTR)

    Measured: 28-day treatment cycles

  5. Phase Ib: 2.To characterize the pharmacokinetic profile of HH2853

    Area under the concentration-time curve (AUC)

    Measured: 28-day treatment cycles

  6. Phase Ib: 2.To characterize the pharmacokinetic profile of HH2853

    Maximum plasma concentration (Cmax)

    Measured: 28-day treatment cycles

  7. Phase Ib: 2.To characterize the pharmacokinetic profile of HH2853

    Trough concentration (Cmin)

    Measured: 28-day treatment cycles

  8. Phase Ib: 2.To characterize the pharmacokinetic profile of HH2853

    Time to maximum plasma concentration (Tmax)

    Measured: 28-day treatment cycles

  9. Phase Ib: 2.To characterize the pharmacokinetic profile of HH2853

    Apparent clearance (CL/F)

    Measured: 28-day treatment cycles

  10. Phase Ib: 2.To characterize the pharmacokinetic profile of HH2853

    Terminal half-life (t1/2)

    Measured: 28-day treatment cycles

  11. Phase II: 1.To further assess the other efficacy of HH2853 of R/R PTCL patients who have received at least one prior systemic combination chemotherapy and at least one new drug (such as Chidamide, Pralatrexate and Brentuximab vedotin, et al.) therapy

    ORR assessed by investigator

    Measured: 28-day treatment cycles

  12. Phase II: 1.To further assess the other efficacy of HH2853 of R/R PTCL patients who have received at least one prior systemic combination chemotherapy and at least one new drug (such as Chidamide, Pralatrexate and Brentuximab vedotin, et al.) therapy

    Complete response rate (CRR)

    Measured: 28-day treatment cycles

  13. Phase II: 1.To further assess the other efficacy of HH2853 of R/R PTCL patients who have received at least one prior systemic combination chemotherapy and at least one new drug (such as Chidamide, Pralatrexate and Brentuximab vedotin, et al.) therapy

    Progression-free survival (PFS)

    Measured: 28-day treatment cycles

  14. Phase II: 1.To further assess the other efficacy of HH2853 of R/R PTCL patients who have received at least one prior systemic combination chemotherapy and at least one new drug (such as Chidamide, Pralatrexate and Brentuximab vedotin, et al.) therapy

    Duration of response (DoR)

    Measured: 28-day treatment cycles

  15. Phase II: 1.To further assess the other efficacy of HH2853 of R/R PTCL patients who have received at least one prior systemic combination chemotherapy and at least one new drug (such as Chidamide, Pralatrexate and Brentuximab vedotin, et al.) therapy

    Disease control rate (DCR)

    Measured: 28-day treatment cycles

  16. Phase II: 1.To further assess the other efficacy of HH2853 of R/R PTCL patients who have received at least one prior systemic combination chemotherapy and at least one new drug (such as Chidamide, Pralatrexate and Brentuximab vedotin, et al.) therapy

    Time to response (TTR)

    Measured: 28-day treatment cycles

  17. Phase II: 1.To further assess the other efficacy of HH2853 of R/R PTCL patients who have received at least one prior systemic combination chemotherapy and at least one new drug (such as Chidamide, Pralatrexate and Brentuximab vedotin, et al.) therapy

    Overall survival (OS) by BIRC

    Measured: 28-day treatment cycles

  18. Phase II: 1.To further assess the other efficacy of HH2853 of R/R PTCL patients who have received at least one prior systemic combination chemotherapy and at least one new drug (such as Chidamide, Pralatrexate and Brentuximab vedotin, et al.) therapy

    Overall survival (OS) by investigator

    Measured: 28-day treatment cycles

  19. Phase II: 2. To evaluate the safety and tolerability of HH2853

    Duration and severity of adverse events (AEs)

    Measured: 28-day treatment cycles

  20. Phase II: 3. To characterize the population pharmacokinetic profile of HH2853

    Area under the concentration-time curve (AUC)

    Measured: 28-day treatment cycles

  21. Phase II: 3. To characterize the population pharmacokinetic profile of HH2853

    Maximum plasma concentration (Cmax)

    Measured: 28-day treatment cycles

  22. Phase II: 3. To characterize the population pharmacokinetic profile of HH2853

    Steady-state trough concentration (Cmin)

    Measured: 28-day treatment cycles

  23. Phase II: 3. To characterize the population pharmacokinetic profile of HH2853

    Time to maximum plasma concentration (Tmax)

    Measured: 28-day treatment cycles

  24. Phase II: 3. To characterize the population pharmacokinetic profile of HH2853

    Apparent clearance (CL/F)

    Measured: 28-day treatment cycles

  25. Phase II: 3. To characterize the population pharmacokinetic profile of HH2853

    Half life (t1/2)

    Measured: 28-day treatment cycles

Timeline

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

  1. First posted4 Apr 2025
  2. Study start27 Jul 2022
  3. Primary completion31 Oct 2025
  4. Study completion30 Jul 2027 (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 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06909877
Sponsor's protocol ID
HH2853-G202
Status last verified
Jan 2026
First submitted
20 Mar 2025
Last updated
30 Jan 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: There is no plan to share IPD based on business strategy.

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing HH2853 Tablets in people with Relapsed/Refractory Peripheral T-Cell Lymphoma (R/R PTCL), run by Haihe Biopharma Co., Ltd. at 1 site 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 6 inclusion and 5 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: looking for participants now, as of the sponsor's last update on 30 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Haiying Jia (86-20568888, haiying.jia@haihepharma.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Phase Ib: To determine the RP2D of HH2853 in PTCL patients (time frame: 28-day treatment cycles). The study lists 2 primary outcomes in all. 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 30 Jan 2026.

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