ClinicalTrials.gg
CompletedNCT01313065Updated Aug 13, 2014

Evaluation of Safety, Tolerability, PK & PD of Intravenous VX15/2503 in Patients With Advanced Solid Tumors

A Phase 1 interventional study of VX15/2503 in Solid Tumors, sponsored by Vaccinex Inc.. Completed at 2 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2014-08-13.

Sponsored by Vaccinex Inc. · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
42
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to evaluate the safety and tolerability of IV administration of VX15/2503 in patients with advanced solid tumors. The escalation part of the study will determine the maximum tolerated dose (MTD).

Read the detailed description

VX15/2503-01 is a dose-escalation, open label study to evaluate the safety and tolerability of IV administered VX15/2503 in patients with advanced solid tumors. This will be accomplished by using a dose escalation procedure starting at low doses of VX15/2503 and will continue based on predefined parameters until the maximum tolerated dose is identified.

The study drug, VX15/2503, is a monoclonal antibody that binds to the semaphorin 4D (SEMA4D; CD100) antigen. Semaphorins have been shown to play an important role in certain physiological processes such as vascular growth, tumor progression and immune cell regulation. Experimental evidence suggests that SEMA4D has two mechanisms of action that result in angiogenesis and tumor proliferation and invasion. Antibody neutralization of SEMA4D thus may represent a new therapeutic strategy for cancer treatment.

02

Conditions studied

  • Solid Tumors

Keywords

  • VX15/2503
  • Semaphorin 4D
  • SEMA4D
  • CD100
  • safety
  • tolerability
  • pharmacokinetics
  • pharmacodynamics
  • advanced solid tumors
03

In context

Lead sponsor

Vaccinex Inc. is the lead sponsor of 7 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Main Inclusion Criteria:

  • Patients 18 yrs or older with confirmed histological or cytological advanced solid tumors, to standard treatment for which no curative therapy is available; patients must demonstrate progressive disease prior to entry
  • Has as defined by RECIST1.1
  • of at least 3 months (per investigator assessment)
  • performance status of 0-2
  • Adequate bone marrow, renal and liver function
  • Recovered from any significant prior toxicity of previous anti-neoplastic therapy
  • For patients of , is willing to use a medically acceptable form of throughout the study period and for at least 4 weeks after the last dose of VX15/2503
  • Expansion cohort - patients in this cohort must have one of the following characteristics:
  • A diagnosis of a pancreatic neuroendocrine tumor OR
  • A diagnosis of a soft tissue sarcoma OR
  • A diagnosis of a bone OR
  • A diagnosis of advanced solid tumor AND a T cell count of at least 1500 cells/uL OR a B cell count of at least 250 cells/uL at screening

Main Exclusion Criteria:

  • Treatment with anti-neoplastic agents (chemotherapy, immunotherapy, radiotherapy or endocrine therapy) within 3 weeks prior to start of study treatment
  • Treatment with an agent within 4 weeks prior to start of study treatment
  • Is on concurrent anti-neoplastic therapy with the exception of continuing luteinizing hormone-releasing hormone agonist/antagonist therapy for patients with castrate-resistant prostate cancer
  • Treatment with oral or parenteral in excess of 10mg/day of prednisolone or equivalent for more than 5 days within 4 weeks prior to start of study treatment or a requirement for systemic therapy for any reason
  • Untreated brain Mets or CNS tumor involvement
  • Any other intercurrent illness or condition which could impact patient compliance or ability to complete the study
  • Sensitivity to VX15/2503 or the ingredients or of VX15/2503
  • Pregnant or breast-feeding women (women of must have negative serum pregnancy test within 3 days prior to receiving the first dose of VX15/2503)
Terms in these criteria, in plain language(12)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Reproductive potential

Able to have children. For women this usually means from the first period until menopause, unless permanently unable to through surgery; for men, unless permanently sterile. Read who the line is about — participants, women, men, or their partners.

Criteria about it usually ask for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
42 participants (actual)

Study arms

  • Experimental
    VX15/2503

    VX15/2503 monoclonal antibody at a concentration of 0.3 mg/kg - 20 mg/kg to be administered intravenously on a weekly dosing cycle.

    Drug: VX15/2503

Interventions

  • DrugVX15/2503

    Drug page: Pepinemab

    Dose escalation will begin at low doses and will gradually increase in each future cohort. The current trial design provides for 7 study cohorts with a 20 mg/kg expansion phase.

06

What researchers measure

Primary outcomes

  1. Safety/tolerability as measured by number of patients with adverse events

    Subject incidence of treatment-emergent adverse events

    Time frame: Up to 18 months

  2. Maximum tolerated dose as measured by frequency of dose limiting toxicities

    Time frame: Four (4) weeks after first dose

Secondary outcomes

  1. Peak plasma concentration (Cmax) of VX15/2503

    Time frame: Four (4) hours after start of infusion

  2. Area under the plasma concentration versus time curve (AUC) of VX15/2503

    Time frame: Up to seven (7) days after first dose

  3. Half-life of VX15/2503

    Time frame: Up to 14 days after first dose

Other outcomes

  1. SEMA4D T cell percent saturation of VX15/2503

    Time frame: Up to 18 months

  2. Number of patients who develop anti-drug antibody

    Time frame: Up to 18 months

  3. Overall response rate (ORR) using RECIST 1.1

    Time frame: Up to 18 months

  4. Progression-free survival (PFS) using RECIST 1.1

    Time frame: Up to 18 months

07

Study locations

2 sites
  • Virginia G. Piper Cancer Center at Scottsdale Healthcare
    Scottsdale, Arizona 85258, United States
  • South Texas Accelerated Research Therapeutics, LLC
    San Antonio, Texas 78229, United States
08

References and documents

Publications

  • Worzfeld T, Offermanns S. Semaphorins and plexins as therapeutic targets. Nat Rev Drug Discov. 2014 Aug;13(8):603-21. doi: 10.1038/nrd4337. PubMed 25082288 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 13, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01313065
Lead sponsor
Vaccinex Inc.
Collaborators
PPD DEVELOPMENT, LP
Responsible party
Sponsor
First posted
Mar 11, 2011
Start date
Jan 2011
Primary completion
Jun 2014
Completion
Jun 2014
Last update
Aug 13, 2014

Study contacts

Amita Patnaik, MD
principal investigator · South Texas Accelerated Research Therapeutics, LLC
Ramesh K Ramanathan, MD
principal investigator · TGen Clinical Research Service at Scottsdale Healthcare

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2014. You cannot join it, but the record below documents what was studied.

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Studies of the drug tested here: Pepinemab

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