Clinical trial No longer in our active list Observational Ages 18 and up

Orelabrutinib treatment for patients with difficult-to-treat B-cell lymphoma

Official title: Observational Study of Orelabrutinib Therapy in Patients With Relapsed or Refractory B-cell Lymphoma Intolerant to Other Bruton Tyrosine Kinase Inhibitors

Run by Peking University People's Hospital · NCT05495828 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study is testing a new treatment called Orelabrutinib for patients with hard-to-treat B-cell lymphoma who can't tolerate other similar medications.

More B-cell Lymphoma trials

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment30 (estimated)
SponsorPeking University People's Hospital
Academic / other
Drugs / interventionsibrutinib, zanubrutinib, Orelabrutinib, obrutinib
Locations1 site (Beijing, Beijing)
Trial IDNCT05495828 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with relapsed or refractory B-cell lymphoma who have previously experienced poor tolerance to ibrutinib or zanubrutinib.

Probably not a fit

Patients who have not previously been treated with BTK inhibitors or those with other types of lymphoma may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the safety and efficacy of Orelabrutinib therapy in patients with relapsed or refractory B-cell lymphoma who are intolerant to other Bruton Tyrosine Kinase inhibitors like ibrutinib and zanubrutinib. The focus is on patients who have experienced significant adverse reactions to these treatments, which often lead to discontinuation. Orelabrutinib is designed to be highly selective, potentially reducing the incidence of severe side effects compared to first-generation BTK inhibitors. The study aims to provide insights into the effectiveness of this therapy in a population that has limited treatment options.

Why it matters

Potential benefit: If successful, this treatment could offer a safer and more effective option for patients with B-cell lymphoma who cannot tolerate existing therapies.

How similar studies have gone: While the approach of using Orelabrutinib is relatively novel, previous studies have indicated its potential effectiveness and safety in similar patient populations.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 1) Age ≥18 years, both sexes; 2) Confirmed by the following diagnostic criteria CLL/SLL: relapsed or refractory chronic lymphocytic leukemia/small lymphocytic lymphoma confirmed by flow cytometry or histopathology according to iwCLL2018 criteria MCL: Recurrent or refractory mantle cell lymphoma histopathologically confirmed: including cytogenetic testing T (11;14) Mantle cell lymphoma with positive/high immunohistochemical expression of Cyclin D1 3) Previous treatment with ibrutinib/zanubrutinib/or other BTK inhibitors and any of the following conditions were defined by the investigator as poor tolerance to ibrutinib/zanubrutinib or other BTK inhibitors: A) Grade ≥2 nonhematologic toxicity lasting \>7 days with or without treatment; B) any non-hematological toxicity of ≥ grade 3 ; C) Grade 3 neutropenia with infection or fever; D) Grade 4 hematologic toxicity that persisted until the investigator chose to discontinue ibrutinib/ zanubrutinib or other BTK inhibitors due to toxicity rather than disease progression 4) The investigator-initiated treatment decision to use Orelabrutinib (before study enrollment); 5) Life expectancy ≥3 months; 6) The patient or his or her legal representative voluntarily signed written informed consent

Exclusion Criteria:

* 1) Richter conversion (CLL/SLL) or disease progression during treatment with ibrutinib/ zanubrutinib or other BTK inhibitors; 2) Past treatment with Orelabrutinib; 3) Absolute neutrophil ANC\<0.75×109/L, platelet PLT\<50×109/L; 4) Blood biochemistry: total bilirubin (TBIL) \>2 times the upper limit of normal ULN (unless Gilbert syndrome is diagnosed), AST or ALT\>2.5× ULN; Serum creatinine (Cr) \>1.5×ULN 5) Coagulation function: INR and APTT ≤1.5 × ULN; 6) Grade 3 or 4 adverse events related to ongoing unresponded treatment with ibrutinib/ zanubrutinib or other BTK inhibitors 7) Participate in research projects that use interventions outside the scope of routine clinical practice

Where it's running

  • Deparment of Hematology, Peking University People's Hospital
    Beijing, Beijing, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.