Purinostat mesylate injections versus oral selinexor for relapsed or refractory diffuse large B‑cell lymphoma

A Randomized, Controlled, Multicenter Phase III Clinical Study Evaluating the Efficacy and Safety of the Purinostat Mesylate for Injection (PM) Compared to Selinexor in Patients With Relapsed/Refractory Diffuse Large B-cell Lymphoma (R/R DLBCL)

PHASE3 · Chengdu Zenitar Biomedical Technology Co., Ltd · NCT07011056

This study tests whether purinostat mesylate injections work better than oral selinexor for adults with relapsed or refractory diffuse large B‑cell lymphoma.

Quick facts

PhasePHASE3
Study typeInterventional
Enrollment390 (estimated)
Ages18 Years and up
SexAll
SponsorChengdu Zenitar Biomedical Technology Co., Ltd (industry)
Locations1 site (Chengdu, Sichuan)
Trial IDNCT07011056 on ClinicalTrials.gov

What this trial studies

Adults with relapsed or refractory diffuse large B‑cell lymphoma who have received at least two prior systemic therapies are enrolled and assigned to receive one of two treatments. The experimental arm receives purinostat mesylate intravenously (11.2 mg/m2 on days 1, 4, 8 and 11 of a 21‑day cycle) for up to six cycles, while the control arm receives oral selinexor 60 mg twice weekly in 4‑week cycles. The main outcomes are objective response rate and overall survival as determined by a blinded independent central review (BICR). Safety and tolerability are monitored throughout treatment.

Who should consider this trial

Good fit: Adults aged 18 or older with histologically confirmed relapsed or refractory DLBCL after at least two prior systemic therapies, measurable disease, ECOG performance status ≤2, and adequate organ function are appropriate candidates.

Not a fit: Patients with double/triple‑hit B‑cell lymphoma, prior transplantation, active or reactivated infections, pregnancy or breastfeeding, or other serious illnesses that make participation unsafe are unlikely to benefit from this protocol.

Why it matters

Potential benefit: If successful, this treatment could provide higher response rates and longer survival than current selinexor therapy for people with relapsed or refractory DLBCL.

How similar studies have performed: Selinexor has shown activity in relapsed/refractory DLBCL in prior studies, while purinostat mesylate has more limited early‑phase data and this Phase III comparison aims to clarify its benefit.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age ≥ 18 years, no gender restrictions;
2. Histologically-confirmed DLBCL, Participants must have relapsed or failed to respond to at least two lines of prior systemic therapy (2-5 lines);
3. Participants must have measurable disease;
4. ECOG≤2;
5. Adequate organ function

Exclusion Criteria:

1. Pregnancy or breastfeeding;
2. Previous history of transplantation;
3. Double/Triple Hit B cell lymphoma;
4. Patient with known active infection, or reactivation of a latent infection;
5. Any serious diseases that investigator deems inappropriate to participate.

Where this trial is running

Chengdu, Sichuan

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Recurrent and Refractory Diffuse Large B-cell Lymphoma

Last reviewed 2026-05-15 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.