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Polycythemia VeraPhase 1/2NCT04051307

Dual Vaccine Trial in Myeloproliferative Neoplasms

A Phase 1/2 study testing PD-L1 peptide: PD-L1 Long(19-27) Peptide sequence: FMTYWHLLNAFTVTVPKDL and Arginase1 peptide: ArgLong2(169-206) Peptide sequence ISAKDIVYIGLRDVDPGEHYILKTLGIKYFSMTEVDRL in people with Polycythemia Vera and Essential Thrombocythemia, run by Inge Marie Svane at 2 sites in Denmark.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A phase I-II study in patients with mutated MPN by vaccinating with PD-L1 and Aginase1 peptides with Montanide ISA-51 as adjuvant, to monitor the immunological response to vaccination and subsequently safety, toxicity and clinical effect. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Polycythemia Vera, Essential Thrombocythemia
What is being tested?
PD-L1 peptide: PD-L1 Long(19-27) Peptide sequence: FMTYWHLLNAFTVTVPKDL and Arginase1 peptide: ArgLong2(169-206) Peptide sequence ISAKDIVYIGLRDVDPGEHYILKTLGIKYFSMTEVDRL
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
9 participants
Where
2 sitesDenmark
Study dates
10 Jul 2019to 10 Jul 2022
Phase
Phase 1/2
Are there results?
None posted in the registry

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

  • 1. Diagnosis of essential thrombocythemia or Polycythemia Vera, according to the WHO criteria123,124 2. Age ≥18 years 3. Performance status ≤ 2 (ECOG-scale) 4. Expected survival > 3 months 5. Sufficient bone marrow function 6. Creatinine < 2.5 upper normal limit, i.e. < 300 µmol/l 7. Sufficient liver function, i.e.
  • ALAT < 2.5 upper normal limit, i.e. ALAT <112 U/l
  • Bilirubin < 30 U/l 8. For women: Agreement to use contraceptive methods with a failure rate of < 1% per year during the treatment period and for at least 120 days after the last treatment.
  • 9. For men: Agreement to use contraceptive measures and agreement to refrain from donating sperm.

Who cannot join

  • Other malignancies in the medical history excluding basal cell carcinoma. Patients cured for another malignant disease with no sign of relapse five years after ended treatment is allowed to enter the protocol.
  • Significant medical condition per investigators judgement e.g. severe Asthma/COPD, poorly regulated heart condition, insulin dependent diabetes mellitus.
  • Acute or chronic viral or bacterial infection e.g. HIV, hepatitis or tuberculosis
  • Serious known allergies or earlier anaphylactic reactions.
  • Known sensibility to Montanide ISA-51
  • Any active autoimmune diseases e.g. autoimmune neutropenia, thrombocytopenia or hemolytic anemia, systemic lupus erythematosus, scleroderma, myasthenia gravis, autoimmune glomerulonephritis, autoimmune adrenal deficiency, autoimmune thyroiditis etc.
Show all 14Show fewer
  • Pregnant and breastfeeding women.
  • Fertile women not using secure contraception with a failure rate less than < 1%
  • Patients taking immune suppressive medications incl. systemic corticosteroids and methotrexate at the time of enrollment
  • Psychiatric disorders that per investigator judgment could influence compliance.
  • Treatment with other experimental drugs
  • Treatment with other anti-cancer drugs - except IFN-a, hydroxyurea or anagrelide.
  • Treatment with ruxolitinib.
  • Treatment with chemotherapy or immune therapy (excluding IFN-a, hydroxyurea or anagrelide) within the last 28 days.

Trial locations and contacts

2 sites in 1 country.

Denmark2 sites
  • Herlev Hospital

    Herlev, Capital Region, 2730

  • National Center for Cancer Immune Therapy (CCIT-DK)

    Herlev, 2730

Other trials in Denmark

About this study

A phase I-II study in patients with mutated MPN by vaccinating with PD-L1 and Aginase1 peptides with Montanide ISA-51 as adjuvant, to monitor the immunological response to vaccination and subsequently safety, toxicity and clinical effect.

Being tested
PD-L1 peptide: PD-L1 Long(19-27) Peptide sequence: FMTYWHLLNAFTVTVPKDL, Arginase1 peptide: ArgLong2(169-206) Peptide sequence ISAKDIVYIGLRDVDPGEHYILKTLGIKYFSMTEVDRL
Medical subject headings
Polycythemia Vera, Thrombocythemia, Essential

What participants receive

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

  • PD-L1 peptide: PD-L1 Long(19-27) Peptide sequence: FMTYWHLLNAFTVTVPKDLDrug

    Also called PD-L1Long

    Peptide vaccination

  • Arginase1 peptide: ArgLong2(169-206) Peptide sequence ISAKDIVYIGLRDVDPGEHYILKTLGIKYFSMTEVDRLDrug

    Also called ARGLong2

    Peptide vaccination

Study groups in NCT04051307
Study groupRoleWhat they receive
interventionExperimentalVaccination with: PD-L1 peptide: PD-L1 Long(19-27) Peptide sequence: FMTYWHLLNAFTVTVPKDL Dose: 100 µg PD-L1 long1 dissolved in DMSO/water - Total volume: 0,5 ml. Arginase1 peptide: ArgLong2(169-206) Peptide sequence ISAKDIVYIGLRDVDPGEHYILKTLGIKYFSMTEVDRL Dose: 200 µg ARGLong2 dissolved in DMSO/water - Total volume: 0,5 ml. Both vaccines are given at a treatment. Adjuvant Montanide ISA 51 0,5ml is mixed with the peptides before treatment To be administered every second week - a total of twelve times, with a possibility of additional six treatments.
Receives: Drug: PD-L1 peptide: PD-L1 Long(19-27) Peptide sequence: FMTYWHLLNAFTVTVPKDL; Drug: Arginase1 peptide: ArgLong2(169-206) Peptide sequence ISAKDIVYIGLRDVDPGEHYILKTLGIKYFSMTEVDRL

What is being measured

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

  1. Immune response

    T-cell cytokine release towards target antigens

    Measured: 1 year

Secondary outcomes (2)
  1. Adverse events evaluated by CTCAE v. 5.0

    Adverse events are graded 1-5 according to the criteria

    Measured: 1 year

  2. Clinical response

    Vaccinations will induce clinical response in 2 patients, either partial response or better, according response criteria for PV and ET or clinical response as a reduction of mutated allelic burden - 10% from baseline at any time.

    Measured: 10 year

Timeline

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

  1. First posted9 Aug 2019
  2. Study start10 Jul 2019
  3. Primary completion10 Jul 2022
  4. Study completion10 Jul 2022

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 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
9 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04051307
Sponsor's protocol ID
MPN19H2
Status last verified
Jul 2023
First submitted
11 Jul 2019
Last updated
13 Jul 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Grauslund JH, Holmstrom MO, Martinenaite E, Lisle TL, Glockner HJ, El Fassi D, Klausen U, Mortensen REJ, Jorgensen N, Kjaer L, Skov V, Svane IM, Hasselbalch HC, Andersen MH. An arginase1- and PD-L1-derived peptide-based vaccine for myeloproliferative neoplasms: A first-in-man clinical trial. Front Immunol. 2023 Feb 23;14:1117466. doi: 10.3389/fimmu.2023.1117466. eCollection 2023.

    PubMed 36911725

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing PD-L1 peptide: PD-L1 Long(19-27) Peptide sequence: FMTYWHLLNAFTVTVPKDL and Arginase1 peptide: ArgLong2(169-206) Peptide sequence ISAKDIVYIGLRDVDPGEHYILKTLGIKYFSMTEVDRL in people with Polycythemia Vera and Essential Thrombocythemia, run by Inge Marie Svane at 2 sites in Denmark.

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 4 inclusion and 14 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: finished, as of the sponsor's last update on 13 Jul 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Denmark. 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 combined 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.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Immune response (time frame: 1 year). 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 NCT04051307, 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 13 Jul 2023.

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