A Phase 1 Study of APX-343A as Monotherapy or in Combination With Pembrolizumab in Subjects With Advanced Solid Tumors

Trial statusRecruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexAll
Age19+
SponsorAptabio Therapeutics, Inc.

About this trial

This is a Phase 1, open-label, dose-escalation study to assess the safety, tolerability, pharmacokinetics (PK), and preliminary efficacy of APX-343A monotherapy (Part A) and in combination with pembrolizumab (Part B) in subjects with advanced solid tumors.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Male or female subjects aged ≥19 years, inclusive, at the time of informed consent.

Willing and able to give informed consent and to comply with the requirements of the study.

Histologically or cytologically confirmed advanced solid tumor.

Life expectancy of at least 3 months in the judgment of the investigator.

Disqualifiers

Received any prior immunotherapy.

Received prior systemic anticancer therapy including investigational agents.

Received prior radiotherapy.

Received a live or live-attenuated vaccine .

Trial design

Design model

Parallel

Treatments tested in this trial

  • APX-343A

    Drug

    Oral administration twice daily

  • Pembrolizumab

    Drug

    intravenous \[IV\]

Treatment groups

110 Participants
are divided into 2 treatment groups
Group A: Part A : APX-343AExperimental treatment 1 intervention
Group B: Part BExperimental treatment 2 interventions

Trial outcomes

Primary outcomes

1

To assess the safety and tolerability and to determine the MTD and/or RP2D of APX-343A monotherapy and in combination with pembrolizumab

Number and severity of TEAEs according to NCI-CTCAE v5.0

Time frame
From enrollment to 90 days after End Of Treatment

Secondary outcomes

1

Cmax of APX-343A

To characterize the PK of APX 343A monotherapy

Time frame
From enrollment to 3 weeks
2

AUC of APX-343A

To characterize the PK of APX-343A monotherapy

Time frame
From enrollment to 3 weeks
3

Tmax of APX-343A

To characterize the PK of APX-343A monotherapy

Time frame
From enrollment to 3 weeks
4

t1/2 of APX-343A

To characterize the PK of APX-343A monotherapy

Time frame
From enrollment to 3 weeks

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Aptabio Therapeutics, Inc.

Lead sponsor

Merck Sharp & Dohme LLC

Collaborator