First in Human Study of QLS5316 in Solid Tumors

January 13, 2026 updated by: Qilu Pharmaceutical Co., Ltd.

A Phase 1 Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Preliminary Efficacy of QLS5316 Monotherapy in Patients With Advanced Solid Tumors

This is a first-in-human (FIH) Phase I, multi-center, open-label, study of QLS5316, in patients with advanced solid tumors. The study aim to evaluating the safety, tolerability, preliminary efficacy, pharmacokinetics (PK), and immunogenicity of QLS5316 as monotherapy.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
300

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Age ≥ 18 years
  2. Eastern Cooperative Oncology Group (ECOG) Performance Status: 0-1
  3. Life expectancy ≥ 3 months;
  4. Measurable disease per RECIST v1.1
  5. Adequate organ and marrow function as defined in the protocol
  6. Dose escalation and PK expansion stages: Histologically or cytologically confirmed locally advanced or metastatic malignant solid tumors that cannot undergo radical surgery or radiotherapy, who have failed SOC or SOC is not available
  7. Cohort expansion stage: Patients with histologically or cytologically confirmed locally advanced or metastatic malignant solid tumors that cannot undergo radical surgery or radiotherapy, including CRC, GC/GEJ, HNSCC (mouth, oropharynx, hypopharynx or larynx), EGFR-sensitive mutant NSCLC and EGFR wild-type NSCLC or other advanced malignant solid tumors who have failed SOC or SOC is not available.

Exclusion Criteria:

  1. Prior treatment with antibody-drug conjugates (ADCs) containing topoisomerase I inhibitors, or prior treatment with EGFR and/or c-MET targeted ADCs
  2. Untreated or active brain metastasis
  3. Presence of Grade ≥ 2 toxicity (according to the Common Terminology Criteria for Adverse Events (CTCAE Version 5.0) ) left over from prior therapy
  4. Patients with a history of interstitial lung disease (ILD)/non-infectious pneumonia, or patients whose suspected ILD/non-infectious pneumonia cannot be ruled out by imaging examination at screening; patients with radiation pneumonitis who do not require steroid treatment are allowed to be enrolled;
  5. Patients with a history of active tuberculosis, active autoimmune diseases or autoimmune diseases that may recur
  6. Patients with a history of severe cardiovascular and cardiovascular diseases
  7. Clinically uncontrollable third space effusion
  8. Presence of persistent uncontrolled systemic bacterial, fungal or viral infections or severe infections within 4 weeks before the first dose in the study, or active infections requiring systematic antibiotic treatment within 1 week before the first dose in the study;
  9. Known hypersensitivity reactions or delayed-type sensitization to some components or analogues of the investigational drug

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: QLS5316
patients with advanced solid tumors were administrated with varying doses of QLS5316 specified in protocol
Drug: QLS5316
Varying doses of QLS5316

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of participants with adverse events as assessed by NCI-CTCAE v5.0
Time Frame: From time of Informed Consent to 30 days post last dose of QLS5316
To evaluate the safety and tolerability of QLS5316
From time of Informed Consent to 30 days post last dose of QLS5316
Number of Participants With Clinical Laboratory Test Abnormalities
Time Frame: From time of Informed Consent to 30 days post last dose of QLS5316
Clinical laboratory test included Hematology, Blood and serum chemistry, Coagulation function, and Fecal occult blood.
From time of Informed Consent to 30 days post last dose of QLS5316
12-lead ECG(Including heart rate, QT interval, QTc interval, and P-R interval)
Time Frame: From time of Informed Consent to 30 days post last dose of QLS5316
Assessment of abnormal electrocardiogram parameters before and after treatment
From time of Informed Consent to 30 days post last dose of QLS5316
Number of participants with physical examination abnormalities
Time Frame: From time of Informed Consent to 30 days post last dose of QLS5316
Including general conditions, skin and mucosa, systemic superficial lymph nodes, head and neck, chest, abdomen, spine and extremities, nervous system, and other examinations.
From time of Informed Consent to 30 days post last dose of QLS5316
Number of participants with vital signs abnormalities
Time Frame: From time of Informed Consent to 30 days post last dose of QLS5316
Including body temperature, respiratory rate, pulse, blood pressure, and oxygen saturation
From time of Informed Consent to 30 days post last dose of QLS5316
DLT
Time Frame: From time of first dose of QLS5316 to end of DLT period (21 days)
Number of patients with at least 1 dose-limiting toxicity (DLT), which is any toxicity defined as a DLT in the Protocol
From time of first dose of QLS5316 to end of DLT period (21 days)
MTD
Time Frame: 1 year
the maximum tolerated dose (MTD) or maximum administered dose (MAD, if MTD fails to be determined) of QLS5316 monotherapy
1 year
RP2D
Time Frame: 2 year
the recommended phase II dose of QLS5316 monotherapy
2 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Qilu Pharmaceutical Co., Ltd.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 5, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 13, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 22, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 22, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 13, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • QLS5316-101

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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