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Lung NeoplasmsPhase 1NCT03212404

Phase 1 Study of CK-301 (Cosibelimab) as a Single Agent in Subjects With Advanced Cancers

A Phase 1 study testing CK-301 (cosibelimab) in people with Lung Neoplasms and Carcinoma, Non-Small-Cell Lung, run by Checkpoint Therapeutics, Inc. at 48 sites in 9 countries.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
Search all trials

Trial summary

CK-301 (cosibelimab) is a fully human monoclonal antibody of IgG1 subtype that directly binds to Programmed Death-Ligand 1 (PD-L1) and blocks its interactions with the Programmed Death-1 (PD-1) and B7.1 receptors. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
CK-301 (cosibelimab)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
272 participants
Where
48 sitesin 9 countries
Study dates
20 Sep 2017to Dec 2025
Phase
Phase 1
Are there results?
Not yet: the study is under way

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

  • Signed written informed consent.
  • Male or female subjects aged greater than or equal to 18 years.
  • For NSCLC: Histologically or cytologically confirmed diagnosis of unresectable recurrent or metastatic non-small cell lung cancer.
  • For CRC: Histologically confirmed diagnosis of recurrent or metastatic colorectal cancer assessed as microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR).
  • For EC: Histologically or cytologically confirmed advanced, recurrent or metastatic endometrial carcinoma.
  • For cSCC: Histologically confirmed diagnosis of unresectable or metastatic cutaneous squamous cell carcinoma not amenable to local therapy.
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  • For SCLC: Histologically or cytologically confirmed diagnosis of unresectable small cell lung cancer.
  • For MPM: Histologically or cytologically confirmed diagnosis of unresectable malignant pleural or peritoneal mesothelioma.
  • For HNSCC: Histologically or cytologically confirmed diagnosis of recurrent or metastatic HNSCC (oral cavity, pharynx, larynx), stage III/IV and not amenable to local therapy with curative intent (surgery or radiation therapy with or without chemotherapy).
  • For MEL: Histologically confirmed diagnosis of unresectable Stage III or metastatic melanoma not amenable to local therapy (excluding uveal or ocular melanoma).
  • For MCC: Histologically confirmed diagnosis of metastatic Merkel cell carcinoma not amenable to local therapy.
  • For RCC: Histologically confirmed diagnosis of renal cell carcinoma (with clear cell component) with advanced or metastatic disease that is not amenable to cure by surgery or other means.
  • For UC: Histologically or cytologically documented locally advanced or metastatic transitional cell carcinoma of the urothelium (including renal pelvis, ureters, urinary bladder, urethra) not amenable to cure by surgery or other means.
  • For HL: Histologically confirmed primary diagnosis of classical Hodgkin's lymphoma.
  • For B-cell NHL: Histologically confirmed diagnosis of non-Hodgkin lymphoma.
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1 at trial entry and an estimated life expectancy of at least 3 months
  • Must have at least one measurable lesion based on RECIST 1.1.
  • Have provided a formalin fixed tumor tissue sample from a biopsy of a tumor lesion either at the time of or after the diagnosis of metastatic disease has been made AND from a site not previously irradiated.
  • Adequate hematological, hepatic and renal function as defined in the protocol.
  • Effective contraception for both male and female subjects if the risk of conception exists.
  • Other protocol defined inclusion criteria could apply.

Who cannot join

  • Prior therapy with an anti-PD-1, anti-PD-L1, anti-PD-L2, anti-CD137, anti-CTLA-4 antibody, or any other antibody or drug specifically targeting T-cell co-stimulation or immune checkpoint pathways.
  • Concurrent treatment with a non-permitted drug.
  • History of severe hypersensitivity reactions to other monoclonal antibodies.
  • Prior malignancy active within the previous 2 years except for locally curable cancers that have been apparently cured, such as basal or squamous cell skin cancer, superficial bladder cancer or carcinoma in situ of the cervix or breast, or localized prostate cancer.
  • Chemotherapy, radioactive, biological cancer therapy, or tyrosine kinase inhibitor (TKI) therapy, within four weeks prior to the first dose of study drug, or who has not recovered to NCI CTCAE Grade 1 or better from the AEs due to cancer therapeutics administered more than four weeks earlier.
  • Significant acute or chronic infections as defined in the protocol.
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  • Active or history of interstitial lung disease (ILD), or has had a history of pneumonitis that has required oral or IV steroids.
  • Active or suspected autoimmune disease or a documented history of autoimmune disease.
  • Known current drug or alcohol abuse.
  • Underlying medical conditions that will make the administration of study drug hazardous or obscure the interpretation of toxicity determination or adverse events.
  • Use of other investigational therapy within 28 days before study drug administration.
  • Pregnant or breastfeeding.
  • Uncontrolled or significant cardiovascular disease.
  • Psychiatric illness or social situation that would preclude study compliance.
  • Receipt of live, attenuated vaccine within 28 days prior to the first dose of study drug.

Trial locations and contacts

48 sites in 9 countries.

48 sites in 9 countries

Russia9 sites
  • Research Site

    Chelyabinsk, 454087

  • Research Site

    Kazan', 420029

  • Research Site

    Murmansk, 183047

  • Research Site

    Novosibirsk, 630108

  • Research Site

    Omsk, 644013

  • Research Site

    Saint Petersburg, 197022

  • Research Site

    Saint Petersburg, 197758

  • Research Site

    Tyumen, 625041

  • Research Site

    Volgograd, 400138

Other trials in Russia

Australia8 sites
  • Research Site

    Benowa, Queensland, 4217

  • Research Site

    Box Hill, Victoria, 3128

  • Research Site

    Buderim, Queensland, 4556

  • Research Site

    Greenslopes, Queensland, 4120

  • Research Site

    Malvern, Victoria, 3144

  • Research Site

    South Brisbane, Queensland, 4101

  • Research Site

    Wollongong, New South Wales, 2500

  • Research Site

    Woolloongabba, Queensland, 4102

Other trials in Australia

Spain7 sites
  • Research Site

    Barcelona

  • Research Site

    Madrid

  • Research Site

    Málaga

  • Research Site

    Pamplona, 31008

  • Research Site

    San Cristóbal de La Laguna, 38320

  • Research Site

    Seville

  • Research Site

    Valencia

Other trials in Spain

France5 sites
  • Research Site

    Besançon, 25030

  • Research Site

    Bordeaux, 33075

  • Research Site

    Grenoble, 38700

  • Research Site

    Lyon, 69495

  • Research Site

    Nice

Other trials in France

Poland5 sites
  • Research Site

    Krakow, 31-826

  • Research Site

    Lodz, 90302

  • Research Site

    Lublin, 20064

  • Research Site

    Poznan, 60693

  • Research Site

    Warsaw, 02-781

Other trials in Poland

South Africa5 sites
  • Research Site

    Cape Town, 7700

  • Research Site

    George, 6529

  • Research Site

    Port Elizabeth

  • Research Site

    Pretoria, 0081

  • Research Site

    Soweto, 2013

Other trials in South Africa

Thailand5 sites
  • Research Site

    Bangkok, 10210

  • Research Site

    Bangkok, 10330

  • Research Site

    Chiang Mai, 50200

  • Research Site

    Hat Yai, Changwat Songkhla, 90110

  • Research Site

    Khon Kaen, 40002

Other trials in Thailand

Ukraine3 sites
  • Research Site

    Chernivtsi, 58013

  • Research Site

    Kharkiv, 61103

  • Research Site

    Sumy, 40022

Other trials in Ukraine

New Zealand1 site
  • Research Site

    Christchurch, 8140

Other trials in New Zealand

About this study

Official title: A Phase 1, Open-label, Multicenter, Dose-escalation Study of CK-301 Administered Intravenously as a Single Agent to Subjects With Advanced Cancers

CK-301 (cosibelimab) is a fully human monoclonal antibody of IgG1 subtype that directly binds to Programmed Death-Ligand 1 (PD-L1) and blocks its interactions with the Programmed Death-1 (PD-1) and B7.1 receptors. The primary objectives of this study are to assess the safety, tolerability and efficacy of CK-301 when administered intravenously as a single agent to subjects with selected recurrent or metastatic cancers.

Read the detailed description

This is a first-in-human, Phase 1, open-label, multicenter, dose-escalation study of CK-301 (cosibelimab), a fully human monoclonal IgG1 antibody targeting PD-L1. The study will consist of 3 periods: Screening (up to 28 days), Treatment (28-day cycles), and Follow-up (up to 6 months of visits with survival follow-up for select cohorts). Following the dose escalation portion of the study, additional evaluable subjects may be included in order to further characterize safety and efficacy at selected doses and/or in specific patient sub-groups.

Being tested
CK-301 (cosibelimab)
Keywords
Cancer, PD-L1, PDL1, PD-1, PD1, Solid tumors, Anti PD-L1, Non-small cell lung cancer, NSCLC, CK-301, CSCC, Skin cancer
Medical subject headings
Lung Neoplasms, Carcinoma, Non-Small-Cell Lung, Carcinoma, Small Cell, Mesothelioma, Malignant, Head and Neck Neoplasms, Melanoma, Carcinoma, Merkel Cell, Carcinoma, Renal Cell

What participants receive

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

  • CK-301 (cosibelimab)Drug

    CK-301 will be administered in periods of 28-day cycles.

Study groups in NCT03212404
Study groupRoleWhat they receive
CK-301 (cosibelimab)ExperimentalPart 1 - Dose Escalation; Part 2 - Dose Expansion
Receives: Drug: CK-301 (cosibelimab)

What is being measured

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

  1. Dose Limiting Toxicity

    Measured: Up to 4 weeks

  2. Number of subjects with Treatment-Emergent Adverse Events according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) Version 4.03 (or most current version)

    Measured: Screening through 4 weeks after study completion, an average of 6 months

  3. Confirmed Objective Response Rate (ORR) as per Response Evaluation Criteria in Solid Tumors (RECIST Version 1.1)

    Measured: Part 2 Only: Average of 6 months

Secondary outcomes (10)
  1. Confirmed Best Overall Response (BOR) as per Response Evaluation Criteria in Solid Tumors (RECIST Version 1.1)

    Measured: Every 8 weeks for first 32 weeks, then 12 weeks through study completion, an average of 6 months

  2. Duration of Response (DoR) as per Response Evaluation Criteria in Solid Tumors (RECIST Version 1.1)

    Measured: Every 8 weeks for first 32 weeks, then 12 weeks through study completion, an average of 6 months

  3. Objective response rate and duration of response (DOR) based on Modified RECIST 1.1 for immune based therapeutics

    Measured: Part 2 Only: Every 8 weeks for first 32 weeks, then 12 weeks through study completion, an average of 6 months

  4. Overall Survival (OS)

    Measured: Part 2 Only: Every 8 weeks for first 32 weeks, then 12 weeks through study completion, an average of 6 months

  5. Pharmacokinetic parameter: AUC (0-t) of CK-301

    Measured: Baseline up to 12 weeks after study completion, an average of 6 months

  6. Pharmacokinetic parameter: AUC (0-infinity) of CK-301

    Measured: Baseline up to 12 weeks after study completion, an average of 6 months

  7. Pharmacokinetic parameter: Cmax of CK-301

    Measured: Baseline up to 12 weeks after study completion, an average of 6 months

  8. Pharmacokinetic parameter: Tmax of CK-301

    Measured: Baseline up to 12 weeks after study completion, an average of 6 months

  9. Pharmacokinetic parameter: T(1/2) of CK-301

    Measured: Baseline up to 12 weeks after study completion, an average of 6 months

  10. Number of subjects with anti-CK-301 antibodies

    Measured: Baseline up to 12 weeks after study completion, an average of 6 months

Timeline

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

  1. First posted11 Jul 2017
  2. Study start20 Sep 2017
  3. Primary completion18 Nov 2021
  4. Study completionDec 2025 (estimated)

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
272 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03212404
Sponsor's protocol ID
CK-301-101
Status last verified
Jan 2025
First submitted
6 Jul 2017
Last updated
3 Feb 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Publications

  • Clingan P, Ladwa R, Brungs D, Harris DL, McGrath M, Arnold S, Coward J, Fourie S, Kurochkin A, Malan DR, Mant A, Sharma V, Shue H, Tazbirkova A, Berciano-Guerrero MA, Charoentum C, Dalle S, Dechaphunkul A, Dudnichenko O, Koralewski P, Lugowska I, Montaudie H, Munoz-Couselo E, Sriuranpong V, Oliviero J, Desai J. Efficacy and safety of cosibelimab, an anti-PD-L1 antibody, in metastatic cutaneous squamous cell carcinoma. J Immunother Cancer. 2023 Oct;11(10):e007637. doi: 10.1136/jitc-2023-007637.

    PubMed 37848259

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing CK-301 (cosibelimab) in people with Lung Neoplasms and Carcinoma, Non-Small-Cell Lung, run by Checkpoint Therapeutics, Inc. at 48 sites in 9 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 21 inclusion and 15 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: under way, not looking for participants, as of the sponsor's last update on 3 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 48 sites in Russia, Australia, Spain, France, Poland and 4 more countries. 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?

This study is still under way. Results are not available in the source record yet.

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?

Dose Limiting Toxicity (time frame: Up to 4 weeks). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03212404, which also lists 1 linked publication.

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 3 Feb 2025.

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