Clinical trial Recruiting at 4 sites Phase 1 Interventional Ages 18 and up

Tolerability of trichostatin A for people with relapsed or refractory blood cancers

Official title: Tolerability Study of Trichostatin A In Subjects With Relapsed or Refractory Hematologic Malignancies

Run by Vanda Pharmaceuticals · NCT03838926 · Data updated 2026-11-12

This trial will test whether trichostatin A is safe and tolerable for adults whose blood cancers have come back or stopped responding to treatment.

More Relapsed/Refractory B-cell Malignancies trials

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment42 (estimated)
SponsorVanda Pharmaceuticals
Industry-sponsored
Locations11 sites (Washington D.C., District of Columbia and 10 other locations)
StatusRecruiting
StartedSeptember 27, 2018
Main results expectedDecember 2027
Study endsDecember 2027
Registry record updatedMarch 16, 2026
Trial IDNCT03838926 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (≥18 years) with relapsed or refractory hematologic malignancies who have measurable disease, ECOG ≤2, have exhausted standard therapies, and are not receiving other anti-cancer treatments are the intended candidates.

Probably not a fit

Patients with active graft-versus-host disease requiring immunosuppression, uncontrolled medical conditions, recent major surgery, bleeding, significant cardiac impairment, or those receiving other anti-cancer therapies are unlikely to benefit from participation.

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

What this trial studies

This is a Phase 1, open-label, single-agent trial giving trichostatin A to adults with relapsed or refractory hematologic malignancies to characterize safety and tolerability. Participants must have measurable or evaluable disease, an ECOG performance status of 0–2, and have exhausted available standard therapies. Study procedures include regular clinical exams, laboratory monitoring, cardiac monitoring, and disease assessments to track adverse events and any signs of response. The trial is conducted at Vanda investigational sites and will follow participants through dosing and predefined safety follow-up periods.

Why it matters

Potential benefit: If tolerated and safe, this drug could offer a new treatment option or lead to later trials testing its effectiveness in certain blood cancers.

How similar studies have gone: Other histone deacetylase inhibitors have shown activity and have approvals for some hematologic cancers, but trichostatin A itself is largely preclinical with limited clinical data, making this an early-stage effort.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Subject is ≥ 18 years at the time of signing informed consent;
* Confirmed malignant hematologic disease or lymphoid malignancy that has relapsed or is refractory to standard therapy and has exhausted all available therapies;
* Presence of measurable or evaluable disease;
* Eastern Cooperative Oncology Group (ECOG) performance status of ≤ 2;
* Contraceptives or other approved avoidance of pregnancy measures

Exclusion Criteria:

* Allogeneic stem cell transplant recipient presenting with graft versus host disease (GVHD) either active or requiring immunosuppression;
* Concomitantly taking anti-cancer therapy (bisphosphonates are permitted);
* Undergone major surgery ≤ 2 weeks prior to starting study drug;
* Evidence of mucosal or internal bleeding;
* Impaired cardiac function or conduction defect;
* Concurrent severe and/or uncontrolled medical conditions

Where it's running

  • Vanda Investigational Site
    Biała Podlaska, Poland
    Recruiting
  • Vanda Investigational Site
    Katowice, Poland
    Recruiting
  • Vanda Investigational Site
    Opole, Poland
    Recruiting
  • Vanda Investigational Site
    Warsaw, Poland
    Recruiting
  • Vanda Investigational Site
    Washington D.C., District of Columbia, United States
    Withdrawn
  • Vanda Investigational Site
    Lafayette, Indiana, United States
    Completed
Show 5 more locations
  • Vanda Investigational Site
    Hackensack, New Jersey, United States
    Withdrawn
  • Vanda Investigational Site
    Seattle, Washington, United States
    Completed
  • Vanda Investigational Site
    Krakow, Poland
    Completed
  • Vanda Investigational Site
    Skorzewo, Poland
    Completed
  • Vanda Investigational Site
    Wroclaw, Poland
    Completed

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.