- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03371485
AST-VAC2 Vaccine in Patients With Non-small Cell Lung Cancer
A Cancer Research UK Phase I Trial of AST-VAC2 (Allogeneic Dendritic Cell Vaccine) Administered Weekly Via Intradermal Injection in Patients With Advanced Non-small Cell Lung Cancer (NSCLC)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
This clinical study is looking at a vaccine called AST-VAC2. AST-VAC2 has been designed to potentially help the immune system attack the cancer. This is a new vaccine which looks promising in laboratory studies but it has never been tested in man.
Dendritic cells occur naturally in your body as part of the immune system however these dendritic cells have a special role in finding proteins in the body which are associated with cancer and it is hoped that the vaccine will train the immune system to recognise these proteins and attack the cancer.
Some cancers tend to have more of a certain type of protein (part of the body's building blocks that make up cells) called 'hTERT' and it has been shown in laboratory studies (and also studies in patients using a similar type of vaccine), that targeting hTERT can lead to destruction of cancer cells by the immune system. AST-VAC2 will target the hTERT protein.
Human Leukocyte Antigen (HLA) is another type of protein. An HLA pre-screening test will be able to show if a person is positive or negative for a specific HLA protein (AST-VAC2 can only work with some types of HLA), as being positive for the protein may mean there is a better chance of the vaccine attacking the cancer. Patients who are positive for the specific HLA type will be asked to consent to the vaccine. Those patients who are negative for the HLA type will not be eligible for the trial.
Study Type
Enrollment (Actual)
Phase
- Phase 1
Contacts and Locations
Study Locations
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Birmingham, United Kingdom
- Birmingham University Hospital
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Southampton, United Kingdom
- Southampton General Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
a) Patients with advanced NSCLC (metastatic or locally advanced), for whom there are no other suitable treatment options.-
- Able to and likely to be well enough to receive six vaccinations i.e. judged by the Investigator to not require alternate treatment for the duration of the vaccination schedule and period to end of vaccination visit.
Has had sufficient wash out periods from previous treatments as follows:
i) four weeks for chemotherapy ii) six weeks for investigational medicinal products (IMPs) iii) eight weeks for immunotherapy (shorter intervals may be acceptable based on half-life of treatment. Eligibility will be confirmed by the Sponsor and CI).
- Measurable disease
- Biopsiable disease is preferable however patients without biopsiable disease can still be considered for the study.
- Written (signed and dated) informed consent and be capable of co-operating with treatment and follow-up.
- Confirmed HLA A*02:01 positive genotype.
- Life expectancy of at least 12 weeks.
- World Health Organisation (WHO) performance status of 0-2.
Haematological and biochemical indices within the ranges shown below. These measurements must be performed prior to the patient receiving the first AST-VAC2 vaccination.
Laboratory Test and Value required
Haemoglobin (Hb) ≥9.0 g/dL; Absolute neutrophil count (ANC) ≥1.5 x 10^9 /L; Platelet count ≥100 x 10 ^9/L; Lymphocyte count ≥1.0 x 10^9 /L; Bilirubin ≤1.5 x upper limit of normal (ULN); Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) and alkaline phosphatase (ALP) ≤ 3.0 x ULN; Calculated creatinine clearance > 30 mL/min
- 18 years or over at the time consent is given.
Exclusion Criteria:
- Radiotherapy (except for palliative reasons) during the previous four weeks before treatment.
- Ongoing toxic manifestations of previous treatments greater than CTCAE Grade 1. Exceptions to this are alopecia or certain Grade 2 toxicities, which in the opinion of the Investigator and the Sponsor should not exclude the patient.
- Systemic steroids or other drugs with a likely effect on immune competence are forbidden during the trial with the exception of replacement treatment. Inhaled and topical steroids are permitted. The predictable need of their use will preclude the patient from trial entry.
- Female patients who are able to become pregnant (or are already pregnant or lactating). However, those patients who have a negative serum or urine pregnancy test before enrolment and agree to use two forms of contraception (one effective form plus a barrier method) [oral, injected or implanted hormonal contraception and condom; intra-uterine device and condom; diaphragm with spermicidal gel and condom] or agree to sexual abstinence*, effective from the first administration of AST-VAC2 throughout the trial and for six months afterwards are considered eligible.
Male patients with partners of child-bearing potential (unless they agree to take measures not to father children by using a barrier method of contraception [condom plus spermicide] or to sexual abstinence* effective from the first administration of AST-VAC2, throughout the trial and for six months afterwards. Men with partners of child-bearing potential must also be willing to ensure that their partner uses an effective method of contraception for the same duration for example, hormonal contraception, intrauterine device, diaphragm with spermicidal gel or sexual abstinence). Men with pregnant or lactating partners must be advised to use barrier method contraception (for example, condom plus spermicidal gel) to prevent exposure of the foetus or neonate.
*Abstinence is only considered to be an acceptable method of contraception when this is in line with the preferred and usual lifestyle of the subject. Periodic abstinence (e.g., calendar, ovulation, symptothermal, post-ovulation methods) and withdrawal are not acceptable methods of contraception.
- Major thoracic or abdominal surgery from which the patient has not yet recovered.
- At high medical risk because of non-malignant systemic disease including active uncontrolled infection.
- Known to be serologically positive for Hepatitis B, Hepatitis C or Human Immunodeficiency Virus (HIV).
- Evidence of any ongoing active autoimmune disease.
- Concurrent congestive heart failure, prior history of class III/ IV cardiac disease (New York Heart Association [NYHA]), prior history of cardiac ischaemia or prior history of cardiac arrhythmia.
- Is a participant or plans to participate in another interventional clinical trial, whilst taking part in this Phase I trial of AST-VAC2. Participation in an observational trial or interventional clinical trial which does not involve administration of an IMP and which would not place an unacceptable burden on the patient in the opinion of the Investigator and Medical Advisor would be acceptable.
- Any vaccination given within four weeks before the first AST-VAC2 vaccination (except for COVID-19 vaccinations which are permitted at investigators discretion).
- Any planned prophylactic vaccination from trial entry until completion of the AST-VAC2 vaccinations (except for COVID-19 vaccinations which are permitted at investigators discretion).
- Any condition which might interfere with the patient's ability to generate an immune response.
- Any other condition which in the Investigator's opinion would not make the patient a good candidate for the clinical trial.
Study Plan
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 |
Intervention / Treatment |
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Experimental: Participants with advanced NSCLC, to receive AST-VAC2
Participants will receive up to a maximum of six vaccinations over six weeks.
Each weekly AST-VAC2 vaccination will be administered as a split dose via two intradermal injections at a target dose defined as 1 x 10^7 viable cells.
There is no dose escalation planned during the study; only one dose level will be explored.
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Allogeneic dendritic cell vaccine.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Frequency and Causality of Serious Adverse Events (SAEs), Non-Serious Adverse Events (NSAEs) and Grade ≥3 Adverse Events (AEs) to AST-VAC2
Time Frame: From the time of informed consent up to 2 years from the first dose of AST-VAC2.
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Number of SAEs, NSAEs and Grade ≥3 AEs overall and number of SAEs, NSAEs and Grade ≥3 AEs related to AST-VAC2.
AEs categorised according to Medical Dictionary for Regulatory Activities version (v) 25.0 and graded for severity according to National Cancer Institute Common Terminology Criteria for Adverse Events v4.02 or protocol specific grading system for injection site reactions (ISRs).
AEs assessed by the reporting study doctors for a causal relationship to AST-VAC2.
Related are those AEs with a causality of possible, probable or highly probable.
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From the time of informed consent up to 2 years from the first dose of AST-VAC2.
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Number of Participants Experiencing ISRs by Grade
Time Frame: From the time of informed consent up to 2 years from the first dose of AST-VAC2.
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Number of participants experiencing ISRs Grade 1 to 4 according to protocol-specific grading of ISRs.
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From the time of informed consent up to 2 years from the first dose of AST-VAC2.
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Participants Showing a Durable Peripheral Immune Response
Time Frame: Screening, vaccination weeks 3, 4 and 6; 2 weeks post last vaccination and 3, 6 and 12 months post first vaccination.
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Immunological response in whole blood (peripheral blood mononuclear cells) by human telomerase reverse transcriptase (hTERT) specific T cells measured by enzyme-linked immunospot (ELISPOT), with a durable peripheral immune response defined as a change in one validated assay at two time points after at least two vaccinations (where a change is defined as 2.5 fold change over baseline [after removal of background], assay control and >35 spots/10^6 cells).
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Screening, vaccination weeks 3, 4 and 6; 2 weeks post last vaccination and 3, 6 and 12 months post first vaccination.
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Mean Fold Change in hTERT Specific T Cells Over Baseline by Timepoint
Time Frame: Screening, vaccination weeks 3, 4 and 6; 2 weeks post last vaccination and 3, 6 and 12 months post first vaccination.
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Immunological response in whole blood (peripheral blood mononuclear cells) by hTERT specific T cells measured by ELISPOT and presented as mean fold change in spots/10^6 cells (after removal of background) from baseline to each timepoint assessed.
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Screening, vaccination weeks 3, 4 and 6; 2 weeks post last vaccination and 3, 6 and 12 months post first vaccination.
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Tumour Response According to Immune-Related Response Criteria (irRC) Post Vaccination
Time Frame: Baseline to End of Vaccination visit (30 days post last vaccination).
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Number of participants with complete response, partial response, stable disease, progressive disease or who were not evaluable at radiological disease assessment (computerised tomography and/or magnetic resonance imaging) at the End of Vaccination visit according to irRC.
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Baseline to End of Vaccination visit (30 days post last vaccination).
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Overall survival at 2 Years Post First Vaccination
Time Frame: From first AST-VAC2 vaccination to 2 years post first vaccination.
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Number of participants alive at 2 years post their first vaccination.
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From first AST-VAC2 vaccination to 2 years post first vaccination.
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- CRUKD/17/003
- 2016-002577-35 (EudraCT Number)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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