PROCLAIM-CX-072: A Trial to Find Safe and Active Doses of an Investigational Drug CX-072 for Patients With Solid Tumors or Lymphomas

NCT ID: NCT03013491

Last Updated: 2025-06-17

Study Results

Results available

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE1/PHASE2

Total Enrollment

196 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-01-19

Study Completion Date

2020-10-27

Brief Summary

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The purpose of this first-in-human study of CX-072 is to characterize the safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD) and antitumor activity of CX-072 administered intravenously (IV) as a single agent or in combination with ipilimumab or vemurafenib in adult subjects with advanced or recurrent solid tumors or lymphomas. PROCLAIM-CX-072: PRObody CLinical Assessment In Man CX-072 clinical trial

CX-072 is a Probody® therapeutic directed against PD-L1 (programmed cell death ligand 1). Probody therapeutics are proteolytically-activatable antibodies (Abs) designed to widen the therapeutic index by minimizing drug interaction with normal tissue while retaining anti-tumor activity. Probody therapeutics are "masked" to attenuate binding to target in healthy tissue but can become "unmasked" in the tumor microenvironment by tumor-specific protease activity.

PROBODY is a U.S. registered trademark of CytomX Therapeutics, Inc.

Detailed Description

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Conditions

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Solid Tumor Lymphoma

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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CX-072 #1

Monotherapy CX-072 (Part A)

Group Type EXPERIMENTAL

CX-072

Intervention Type DRUG

Solution for infusion

CX-072 #2

Monotherapy CX-072 (Part A2)

Group Type EXPERIMENTAL

CX-072

Intervention Type DRUG

Solution for infusion

CX-072 with Ipilimumab #1

Combination CX-072 + ipilimumab (Part B1)

Group Type EXPERIMENTAL

CX-072

Intervention Type DRUG

Solution for infusion

ipilimumab

Intervention Type DRUG

Solution for infusion

CX-072 with Ipilimumab #2

Combination CX-072 + ipilimumab (Part B2)

Group Type EXPERIMENTAL

CX-072

Intervention Type DRUG

Solution for infusion

ipilimumab

Intervention Type DRUG

Solution for infusion

CX-072 with Vemurafenib

Combination CX-072 + vemurafenib (Part C)

Group Type EXPERIMENTAL

CX-072

Intervention Type DRUG

Solution for infusion

vemurafenib

Intervention Type DRUG

Tablet

CX-072 expansion

Monotherapy CX-072 (Part D)

Group Type EXPERIMENTAL

CX-072

Intervention Type DRUG

Solution for infusion

CX-072 long-term extension

Monotherapy CX-072

Group Type EXPERIMENTAL

CX-072

Intervention Type DRUG

Solution for infusion

Interventions

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CX-072

Solution for infusion

Intervention Type DRUG

ipilimumab

Solution for infusion

Intervention Type DRUG

vemurafenib

Tablet

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Histologically confirmed diagnosis of metastatic or advanced unresectable tumors that progressed on standard therapy
2. Agreement to provide mandatory archival tissue or fresh biopsy.
3. At least 18 years of age.

Exclusion Criteria

1. Prior therapy with a chimeric antigen receptor (CAR) T-cell containing regimen.
2. History of severe allergic or anaphylactic reactions to human monoclonal antibody therapy or known hypersensitivity to any Probody therapeutic.
3. Active or history of uveal, mucosal, or ocular melanoma. Human immunodeficiency virus (HIV) or acquired immune deficiency syndrome (AIDS)-related illness, chronic hepatitis B or C.
4. History of or current active autoimmune diseases, including but not limited to inflammatory bowel diseases, rheumatoid arthritis, autoimmune thyroiditis, autoimmune hepatitis, systemic sclerosis, systemic lupus erythematosus, autoimmune vasculitis, autoimmune neuropathies, or type 1 insulin dependent diabetes mellitus.
5. History of syndrome or medical condition(s) that requires systemic steroids (\> 10 mg daily prednisone equivalents) or immunosuppressive medications.
6. History of allogeneic tissue/solid organ transplant, prior stem cell or bone marrow transplant.
7. Chemotherapy, biochemotherapy, radiation or immunotherapy or any investigational treatment within 30 days prior to receiving any study drug.
8. Major surgery (requiring general anesthesia) within 3 months or minor surgery (excluding biopsies conducted with local/topical anesthesia) or gamma knife treatment within 14 days (with adequate healing) of administration of any study drug.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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CytomX Therapeutics

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Monika Vainorius, M.D.

Role: STUDY_DIRECTOR

CytomX Therapeutics

Locations

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PROCLAIM Investigative Site

Los Angeles, California, United States

Site Status

PROCLAIM Investigative Site

Los Angeles, California, United States

Site Status

PROCLAIM Investigative Site

New Haven, Connecticut, United States

Site Status

PROCLAIM Investigative Site

Chicago, Illinois, United States

Site Status

PROCLAIM Investigative Site

Indianapolis, Indiana, United States

Site Status

PROCLAIM Investigative Site

Boston, Massachusetts, United States

Site Status

PROCLAIM Investigative Site

Detroit, Michigan, United States

Site Status

PROCLAIM Investigative Site

New York, New York, United States

Site Status

PROCLAIM Investigative Site

New York, New York, United States

Site Status

PROCLAIM Investigative Site

New York, New York, United States

Site Status

PROCLAIM Investigative Site

Portland, Oregon, United States

Site Status

PROCLAIM Investigative Site

Nashville, Tennessee, United States

Site Status

PROCLAIM Investigative Site

Dallas, Texas, United States

Site Status

PROCLAIM Investigative Site

Houston, Texas, United States

Site Status

PROCLAIM Investigative Site

Fairfax, Virginia, United States

Site Status

PROCLAIM Investigative Site

Madison, Wisconsin, United States

Site Status

PROCLAIM Investigative Site

Amsterdam, , Netherlands

Site Status

PROCLAIM Investigative Site

Groningen, , Netherlands

Site Status

PROCLAIM Investigative Site

Rotterdam, , Netherlands

Site Status

PROCLAIM Investigative Site

Katowice, , Poland

Site Status

PROCLAIM Investigative Site

Pamplona, Navarre, Spain

Site Status

PROCLAIM Investigative Site

Barcelona, , Spain

Site Status

PROCLAIM Investigative Site

Barcelona, , Spain

Site Status

PROCLAIM Investigative Site

Madrid, , Spain

Site Status

PROCLAIM Investigative Site

Madrid, , Spain

Site Status

PROCLAIM Investigative Ssite

Valencia, , Spain

Site Status

PROCLAIM Investigative Site

Dnipro, , Ukraine

Site Status

PROCLAIM Invetigative Site

Glasgow, , United Kingdom

Site Status

PROCLAIM Investigative Site

London, , United Kingdom

Site Status

PROCLAIM Investigative Site

Manchester, , United Kingdom

Site Status

PROCLAIM Investigative Site

Newcastle upon Tyne, , United Kingdom

Site Status

Countries

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United States Netherlands Poland Spain Ukraine United Kingdom

References

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Naing A, Thistlethwaite F, De Vries EGE, Eskens FALM, Uboha N, Ott PA, LoRusso P, Garcia-Corbacho J, Boni V, Bendell J, Autio KA, Randhawa M, Durm G, Gil-Martin M, Stroh M, Hannah AL, Arkenau HT, Spira A. CX-072 (pacmilimab), a Probody (R) PD-L1 inhibitor, in advanced or recurrent solid tumors (PROCLAIM-CX-072): an open-label dose-finding and first-in-human study. J Immunother Cancer. 2021 Jul;9(7):e002447. doi: 10.1136/jitc-2021-002447.

Reference Type DERIVED
PMID: 34301809 (View on PubMed)

Sanborn RE, Hamid O, de Vries EG, Ott PA, Garcia-Corbacho J, Boni V, Bendell J, Autio KA, Cho DC, Plummer R, Stroh M, Lu L, Thistlethwaite F. CX-072 (pacmilimab), a Probody PD-L1 inhibitor, in combination with ipilimumab in patients with advanced solid tumors (PROCLAIM-CX-072): a first-in-human, dose-finding study. J Immunother Cancer. 2021 Jul;9(7):e002446. doi: 10.1136/jitc-2021-002446.

Reference Type DERIVED
PMID: 34301808 (View on PubMed)

Giesen D, Broer LN, Lub-de Hooge MN, Popova I, Howng B, Nguyen M, Vasiljeva O, de Vries EGE, Pool M. Probody Therapeutic Design of 89Zr-CX-072 Promotes Accumulation in PD-L1-Expressing Tumors Compared to Normal Murine Lymphoid Tissue. Clin Cancer Res. 2020 Aug 1;26(15):3999-4009. doi: 10.1158/1078-0432.CCR-19-3137. Epub 2020 Jan 17.

Reference Type DERIVED
PMID: 31953313 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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CTMX-M-072-001

Identifier Type: -

Identifier Source: org_study_id

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