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Advanced MalignanciesPhase 1NCT05391022

Study Evaluating Food Effect and QTc in Patients With Advanced Malignancies

A Phase 1 study testing Pelabresib in people with Advanced Malignancies and Solid Tumor, run by Constellation Pharmaceuticals at 10 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Phase 1 2-part study to evaluate the effect of food on pharmacokinetics of pelabresib (CPI-0610) and the effect of pelabresib on QTc in patients with advanced malignancies Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Pelabresib
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
35 participants
Where
10 sitesin 3 countries
Study dates
20 Jul 2021to 29 Feb 2024
Phase
Phase 1
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 18 years of age or older
  • Confirmed diagnosis of an advanced malignancy for which no effective standard treatment options are available
  • Eastern Cooperative Oncology Group (ECOG) performance status of ≤2

Who cannot join

  • Chronic or active conditions and/or concomitant medication use that would prohibit treatment

Trial locations and contacts

10 sites in 3 countries.

10 sites in 3 countries

Spain4 sites
  • Barcelona HM Nou Delfos

    Barcelona, 08023

  • Madrid - FJD

    Madrid, 28040

  • START CIOCC Hospital HM Sanchinarro

    Madrid

  • Hospital Universitario Virgen del Rocío

    Seville, 41013

Other trials in Spain

United States3 sites
  • Gabrail Cancer Center Research

    Canton, Ohio, 44718

  • Gettysburg Cancer Center

    Gettysburg, Pennsylvania, 17325

  • Start Mountain Region

    West Valley City, Utah, 84119

Other trials in United States

Georgia3 sites
  • Hight Technology Hospital Medcenter

    Batumi

  • K. Eristavi National Center of Experimental and Clinical Surgery

    Tbilisi

  • Simon Khechinashvili University Hospital

    Tbilisi

Other trials in Georgia

About this study

Official title: A Phase 1, 2-Part Study to Evaluate the Effect of Food on Pharmacokinetics of Pelabresib (CPI-0610) and the Effect of Pelabresib on QTc in Patients With Advanced Malignancies

Phase 1 2-part study to evaluate the effect of food on pharmacokinetics of pelabresib (CPI-0610) and the effect of pelabresib on QTc in patients with advanced malignancies

Being tested
Pelabresib
Keywords
Pelabresib, CPI 0610
Medical subject headings
Hematologic Neoplasms

What participants receive

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

  • PelabresibDrug

    Also called CPI 0610

    Pelabresib monohydrate tablets

Study groups in NCT05391022
Study groupRoleWhat they receive
Run-In Food Effect PeriodExperimentalUnblinded, open label drug will be administered once in a fasted state and twice in a fed state with a minimum of 5 days between each dose prior to entering the continuous treatment phase.
Receives: Drug: Pelabresib
Continuous Treatment PeriodExperimentalUnblinded, open label drug will be administered once daily for 14 consecutive days followed by a 7 day break, which is considered 1 cycle of treatment (1 cycle = 21 days).
Receives: Drug: Pelabresib

What is being measured

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

  1. Run-In Food Effect Period: Area under the concentration time curve (AUC) based on pelabresib concentrations in plasma measured using validated plasma assay

    The primary endpoint for the food effect is to investigate the effects high and low-fat meals have on the oral bioavailability of single doses of pelabresib

    Measured: 21 days

  2. Run-In Food Effect Period: maximal plasma concentration (Cmax) based on pelabresib concentrations in plasma measured using validated plasma assay

    The primary endpoint for the food effect is to investigate the effects high and low-fat meals have on the oral bioavailability of single doses of pelabresib

    Measured: 21 days

  3. Run-In Food Effect Period: Time to maximal plasma concentration (Tmax) based on pelabresib concentrations in plasma measured using validated plasma assay

    The primary endpoint for the food effect is to investigate the effects high and low-fat meals have on the oral bioavailability of single doses of pelabresib

    Measured: 21 days

  4. Continuous Treatment Period: Changes in QT and QTc intervals

    The primary endpoint of the QT portion is to determine the effect of single and multiple doses of pelabresib on QT/QTc prolongation

    Measured: 12 months

Secondary outcomes (2)
  1. -In Food Effect Period: Total amount (Ae[∞]) and fraction of dose (fe) of pelabresib

    Ae(∞) and fe of pelabresib excreted into urine

    Measured: 24 hours

  2. Run-In Food Effect Period and Continuous Treatment Period: incidence of treatment-emergent adverse events (AEs) and serious adverse events (SAEs)

    Safety: TEAEs and treatment-emergent SAEs

    Measured: 12 months

Timeline

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

  1. First posted25 May 2022
  2. Study start20 Jul 2021
  3. Primary completion8 Mar 2023
  4. Study completion29 Feb 2024

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
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
35 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05391022
Sponsor's protocol ID
CPI 0610-05
Other IDs
2022-000896-38, CDAK539A12106
Status last verified
Jul 2025
First submitted
5 May 2022
Last updated
28 Jul 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Pelabresib in people with Advanced Malignancies and Solid Tumor, run by Constellation Pharmaceuticals at 10 sites in 3 countries.

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 1 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: finished, as of the sponsor's last update on 28 Jul 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 10 sites in Spain, United States, Georgia. 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 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.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Run-In Food Effect Period: Area under the concentration time curve (AUC) based on pelabresib concentrations in plasma measured using validated plasma assay (time frame: 21 days). The study lists 4 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 28 Jul 2025.

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