Mechanism of Action of Interferon in the Treatment of Myeloproliferative Neoplasms

NCT05850273 | Recruiting

• 2 other identifiers: C21-462021-A03067-34
• Study Type: observational
• Target: 80
• Locations: 1 country
• Sites: 1

Brief Summary

Classical BCR-ABL-negative myeloproliferative neoplasms (MPN) include: Polycythemia Vera (PV), Essential Thrombocythemia (ET) and Primary Myelofibrosis (PMF). They are myeloid malignancies resulting from the transformation of a multipotent hematopoietic stem cell (HSC) caused by mutations activating the JAK2/STAT pathway. The most prevalent mutation is JAK2V617F. Type 1 and Type 2 calreticulin (CALR) and thrombopoietin receptor (MPL) mutations are also observed in ET and PMF. Additional non-MPN mutations affecting different pathways are also found, particularly in PMF, and are involved in disease initiation and/or in phenotypic changes and /or disease progression and/or response to therapy. There is an obvious and urgent need for an efficient therapy for MPN. In particular, PMF remain without curative treatment, except allogeneic HSC transplantation and JAK inhibitors have limited effects on the disease outcome. Among novel therapeutic approaches, Peg-IFNα2a (IFN) is the most efficient harboring both high rates of hematological responses in JAK2V617F and CALRmut MPN patients and some molecular responses mainly in JAK2V617F patients including deep molecular response (DMR). Nevertheless, several studies, including our own, have demonstrated that the IFN molecular response in CALRmut patients is heterogeneous and overall much lower than in JAK2V617F patients. Moreover, some JAK2V617F MPN patients do not respond to IFN, and DMR is only observed in around 20% of JAK2V617F patients. Finally, long-term treatments are needed (2-5 years) to obtain a DMR, jeopardizing its success due to possible long-term toxicity. The underlying reasons for failure, drug resistance, heterogeneous molecular response in CALRmut patients and the long delays for DMR in JAK2V617F patients remain unclear, largely because the mechanisms by which IFNα targets MPN malignant clones remain elusive. Significant improvement of IFN efficacy cannot be achieved without basic and clinical research. Hence our two lines of research are to

• Understand how IFNα specifically targets neoplastic HSCs
• Predicting and improving patient response during IFNα therapy

Conditions

Myeloproliferative Neoplasm

Keywords

interferon alpha; Hematopoietic stem cell; mechanism of action

Outcome Measures

Primary Outcomes (3)

• Clonal architecture of hematopoietic progenitors of patients

  Blood samples are processed to separate mature cells (granulocytes) from progenitors (CD34+ marker). Progenitors are isolated and separated by FACS according to their more or less mature CD34+/CD38±/CD90± phenotype and then cultured for 14 days at the single-cell level. The cells resulting from their differentiation in culture are lysed and their DNA is isolated and stored for PCR or NGS analysis in order to define their mutational profile. Once the genotyping of these cells is established, the DNA is destroyed and nothing remains of the initial biological sample.

  During 5 years from day 0 of IFN treatment, 3 to 4 times per year

• Single cell RNA sequencing coupled to genotyping

  Blood samples are processed to separate mature cells (granulocytes) from progenitors (CD34+ marker). Progenitors are isolated and subjected to scRNA-seq using long-read techniques (PromethION). The trajectories of hematopoietic differentiation and RNA sequencing will be analyzed in each cell

  at day 0 of IFN treatment and at two other time point (between 3 and 24 months of treatment)

• Culture of progenitors in vitro

  Blood samples are processed to separate mature cells (granulocytes) from progenitors (CD34+ marker). Progenitors (CD34+) are then cultured in serum free medium with cytokines or in semisolid medium in the presence of IFN alone or in association.

  during 5 years from day 0

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

The studied population will be all men and women of legal age who were not vulnerable and whose diagnosis of MPN had been previously established by the referring physician. They are therefore voluntary patients of legal age who are not vulnerable and who suffer from PV, ET or MF. The selection of patients is according to the availability of the caregivers for this study but with a preference for this second study towards CALRm patients (rarer) rather than JAK2V617F. Our wish is to integrate a maximum of 50 patients (10/year) knowing that the limitation is the capacity (personnel and finance) of our INSERM laboratory to study this high number of patients.

You may qualify if:

• Adult male or female 18 years of age or older
• These patients will be affiliated with or benefit from a social security plan
• For all these patients an additional 20-40 mL will be collected except for some PV patients who are treated conventionally by phlebotomy. In this case, we will collect blood bags from these patients. The volumes vary between 300 and 450 mL of blood depending on the weight and size of the patients.
• We will also include in this protocol any patient whose MPN, either PV, TE or MF, will have progressed to acute leukemia (AL) during treatment. These will be patients with AP of MPN (MPN can also progress to acute myeloid leukemia (AML) by acute transformation (AT) of MPN).
• Patient with signed informed consent

You may not qualify if:

• Persons under court protection, guardianship or curatorship

Sponsors & Collaborators

• Institut National de la Santé Et de la Recherche Médicale, France: lead

Study Sites (1)

Inserm U1287

Villejuif, Île-de-France Region, 94805, France

RECRUITING

Related Publications (8)

• James C, Ugo V, Le Couedic JP, Staerk J, Delhommeau F, Lacout C, Garcon L, Raslova H, Berger R, Bennaceur-Griscelli A, Villeval JL, Constantinescu SN, Casadevall N, Vainchenker W. A unique clonal JAK2 mutation leading to constitutive signalling causes polycythaemia vera. Nature. 2005 Apr 28;434(7037):1144-8. doi: 10.1038/nature03546.

  PMID: 15793561 RESULT

• Klampfl T, Gisslinger H, Harutyunyan AS, Nivarthi H, Rumi E, Milosevic JD, Them NC, Berg T, Gisslinger B, Pietra D, Chen D, Vladimer GI, Bagienski K, Milanesi C, Casetti IC, Sant'Antonio E, Ferretti V, Elena C, Schischlik F, Cleary C, Six M, Schalling M, Schonegger A, Bock C, Malcovati L, Pascutto C, Superti-Furga G, Cazzola M, Kralovics R. Somatic mutations of calreticulin in myeloproliferative neoplasms. N Engl J Med. 2013 Dec 19;369(25):2379-90. doi: 10.1056/NEJMoa1311347. Epub 2013 Dec 10.

  PMID: 24325356 RESULT

• Mascarenhas J, Kosiorek HE, Prchal JT, Rambaldi A, Berenzon D, Yacoub A, Harrison CN, McMullin MF, Vannucchi AM, Ewing J, O'Connell CL, Kiladjian JJ, Mead AJ, Winton EF, Leibowitz DS, De Stefano V, Arcasoy MO, Kessler CM, Catchatourian R, Rondelli D, Silver RT, Bacigalupo A, Nagler A, Kremyanskaya M, Levine MF, Arango Ossa JE, McGovern E, Sandy L, Salama ME, Najfeld V, Tripodi J, Farnoud N, Penson AV, Weinberg RS, Price L, Goldberg JD, Barbui T, Marchioli R, Tognoni G, Rampal RK, Mesa RA, Dueck AC, Hoffman R. A randomized phase 3 trial of interferon-alpha vs hydroxyurea in polycythemia vera and essential thrombocythemia. Blood. 2022 May 12;139(19):2931-2941. doi: 10.1182/blood.2021012743.

  PMID: 35007321 RESULT

• Mosca M, Hermange G, Tisserand A, Noble R, Marzac C, Marty C, Le Sueur C, Campario H, Vertenoeil G, El-Khoury M, Catelain C, Rameau P, Gella C, Lenglet J, Casadevall N, Favier R, Solary E, Cassinat B, Kiladjian JJ, Constantinescu SN, Pasquier F, Hochberg ME, Raslova H, Villeval JL, Girodon F, Vainchenker W, Cournede PH, Plo I. Inferring the dynamics of mutated hematopoietic stem and progenitor cells induced by IFNalpha in myeloproliferative neoplasms. Blood. 2021 Dec 2;138(22):2231-2243. doi: 10.1182/blood.2021010986.

  PMID: 34407546 RESULT

• Dagher T, Maslah N, Edmond V, Cassinat B, Vainchenker W, Giraudier S, Pasquier F, Verger E, Niwa-Kawakita M, Lallemand-Breitenbach V, Plo I, Kiladjian JJ, Villeval JL, de The H. JAK2V617F myeloproliferative neoplasm eradication by a novel interferon/arsenic therapy involves PML. J Exp Med. 2021 Feb 1;218(2):e20201268. doi: 10.1084/jem.20201268.

  PMID: 33075130 RESULT

• Gisslinger H, Klade C, Georgiev P, Krochmalczyk D, Gercheva-Kyuchukova L, Egyed M, Rossiev V, Dulicek P, Illes A, Pylypenko H, Sivcheva L, Mayer J, Yablokova V, Krejcy K, Grohmann-Izay B, Hasselbalch HC, Kralovics R, Kiladjian JJ; PROUD-PV Study Group. Ropeginterferon alfa-2b versus standard therapy for polycythaemia vera (PROUD-PV and CONTINUATION-PV): a randomised, non-inferiority, phase 3 trial and its extension study. Lancet Haematol. 2020 Mar;7(3):e196-e208. doi: 10.1016/S2352-3026(19)30236-4. Epub 2020 Jan 31.

  PMID: 32014125 RESULT

• Verger E, Cassinat B, Chauveau A, Dosquet C, Giraudier S, Schlageter MH, Ianotto JC, Yassin MA, Al-Dewik N, Carillo S, Legouffe E, Ugo V, Chomienne C, Kiladjian JJ. Clinical and molecular response to interferon-alpha therapy in essential thrombocythemia patients with CALR mutations. Blood. 2015 Dec 10;126(24):2585-91. doi: 10.1182/blood-2015-07-659060. Epub 2015 Oct 20.

  PMID: 26486786 RESULT

• Knudsen TA, Skov V, Stevenson K, Werner L, Duke W, Laurore C, Gibson CJ, Nag A, Thorner AR, Wollison B, Hansen DL, Ellervik C, El Fassi D, de Stricker K, Ocias LF, Brabrand M, Bjerrum OW, Overgaard UM, Frederiksen M, Kristensen TK, Kruse TA, Thomassen M, Mourits-Andersen T, Severinsen MT, Stentoft J, Starklint J, Neuberg DS, Kjaer L, Larsen TS, Hasselbalch HC, Lindsley RC, Mullally A. Genomic profiling of a randomized trial of interferon-alpha vs hydroxyurea in MPN reveals mutation-specific responses. Blood Adv. 2022 Apr 12;6(7):2107-2119. doi: 10.1182/bloodadvances.2021004856.

  PMID: 34507355 RESULT

Biospecimen

Retention: SAMPLES WITH DNA

Blood will be sampled and fractionated into different types of progenitors based on CD34, CD38 and CD90 markers, granulocytes, platelets,plasma. The progenitor cells will be single cell sequenced or genotyped. Alternatively the progenitor cells will be cultured in vitro. The DNA and RNA will be extracted from granulocytes and platelets respectively

MeSH Terms

Conditions

Myeloproliferative Disorders

Condition Hierarchy (Ancestors)

Bone Marrow Diseases; Hematologic Diseases; Hemic and Lymphatic Diseases

Study Officials

• Florence Pasquier, MD,PhD

  florence.pasquier@gustaveroussy.fr

  PRINCIPAL INVESTIGATOR

Central Study Contacts

isabelle Plo, PhD

CONTACT

+33 1 42 11 54 93; isabelle.plo@gustaveroussy.fr

Léa Durix, MD,PhD

CONTACT

lea.durix@gustaveroussy.fr

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER GOV
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: April 28, 2023
• First Posted: May 9, 2023
• Study Start: March 16, 2023
• Primary Completion (Estimated): March 16, 2028
• Study Completion (Estimated): March 16, 2033
• Last Updated: April 14, 2026

Record last verified: 2026-04

Data Sharing

• IPD Sharing: Will not share

Locations

FR (1)