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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03996096
Other study ID # 18-206
Secondary ID
Status Completed
Phase
First received
Last updated
Start date April 23, 2019
Est. completion date March 16, 2023

Study information

Verified date March 2023
Source University Hospital, Caen
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Patients who suffer from chronic myeloid leukemia are treated by tyrosin kinase inhibitors (TKI) saying imatinib, nilotinib, dasatinib, bosutinib and ponatinib. These drugs are highly efficient with excellent response allowing some patients to definitely stop their cancer treatment. However, in 30% of cases, when the treatment is stopped, pains could arise in shoulders, hips, joints… These symptoms occurring after the withdrawal of a drug are odd and biologically unexplained so far. This study seeks to discover the biological factors behind these symptoms called 'TKI withdrawal syndrome' by the scientific community.


Description:

The success of TKI in the treatment of chronic myeloid leukemia is undeniable. Indeed, since the advent of imatinib in 2000 and the subsequent 4 other TKIs, this once fatal disease has become just another chronic disease with patient life expectancy close to the general population. Lifelong TKI therapy offers an 'operational cure' which means quiescent BCR-ABL leukemic stem cells are not eradicated but only controlled. This statement was challenged in 2008 by the French 'STIM' study in which patients with undetectable BCR-ABL were proposed to discontinue their imatinib: 40% of these patients successfully achieved treatment free remission (TFR) with no recurrence of the disease. These figures are confirmed by the Australian 'TWISTER' study. The resumption of Imatinib therapy was triggered by the positivity of BCR-ABL. In the A-STIM study, the loss of major molecular response is the main criteria to resume imatinib. Accordingly, TFR was a success in 60% of patients. Similar figures was published with second generation TKIs with the same criteria. In the light of these studies, it is clear that the fields have moved to a more ambitious goal than the operational cure, without the need for remaining on TKI. Paradoxically, a new syndrome emerged from the Sweden group in 2014: 'the TKI withdrawal syndrome. It consisted of musculoskeletal pains resembling the Polymyalgia Rheumatica in CML patients after discontinuation of Imatinib. It occurred within 6 weeks in 30% of the patients who went on stopping imatinib. Patients with severe pain responded to 10-20 mg of prednisolone. Similar manifestations were described in the European 'EuroSki' study. No explanation was found. It is well known that TKIs have off-target effects. In addition to BCR-ABL, they inhibit c-Kit, SRC, PDGFR, BTK, TEC, NFKB pathways resulting in anti-inflammatory effects. They can also cause disturbances in electrolyte balance (hypophosphatemia) and bone metabolism. Some research teams have correlated the success of TFR to the increase in cytotoxic NK cells and production IFN and TNFα. Is the TKI withdrawal syndrome a rebound phenomenon from these off-target effects with excessive release of some cytokines? Of note, an Italian team showed in 4 out of 8 patients with WS an increase of PDGFβ (in 1 patient there was also increase in IL6, TGFβ and VEGF). But no tests were performed in the other patients who stopped TKI and did not presented with the WS as comparison. Here, the proposed study concerns any CML patient candidate for TKI discontinuation. Will prospectively be checked a number of cytokines and biological factors susceptible to contribute to the clinical features taking into account the off-target effects of TKIs. Therefore, the investigators could compare the variation in a potentially involved cytokine within patients with or without withdrawal syndrome. In addition, the study will prospectively provide a broader description of TKI WS using Brief pain Inventory (BPI) questionnaire. Eventually, cytokines, inflammatory and bone markers will be dosed at diagnosis and every month during 3 months corresponding to the timeframe in which the withdrawal syndrome is due to occur. A variation of 20% (increase or decrease) in whatever marker(s) will be considered significant if it is (or they are) observed in the group with "TKI withdrawal (TKI WS)" but not in the group without "TKI WS". Pathophysiological explanation of this syndrome could be assumed later taking into account the clinical presentation partly explored by the pain questionnaires


Recruitment information / eligibility

Status Completed
Enrollment 50
Est. completion date March 16, 2023
Est. primary completion date March 16, 2023
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Adult CML patient candidate for TKI discontinuation. - Performans status : 0-2 - Patient provided with information Exclusion Criteria: - Patient unable to fulfill the questionnaires - Patient suffering from demantia - Patient treated with any cytokine antagonist

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
France University hospital Caen

Sponsors (1)

Lead Sponsor Collaborator
University Hospital, Caen

Country where clinical trial is conducted

France, 

References & Publications (4)

Galimberti S, Fontanelli G, Barsotti S, Ricci F, Guerrini F, Barate C. Increased values of the circulating PDGFbeta sustains the "withdrawal syndrome" after tyrosine kinase inhibitor discontinuation in patients affected by chronic myeloid leukemia. Blood Cells Mol Dis. 2015 Oct;55(3):211-2. doi: 10.1016/j.bcmd.2015.06.010. Epub 2015 Jun 23. No abstract available. — View Citation

Mahon FX, Rea D, Guilhot J, Guilhot F, Huguet F, Nicolini F, Legros L, Charbonnier A, Guerci A, Varet B, Etienne G, Reiffers J, Rousselot P; Intergroupe Francais des Leucemies Myeloides Chroniques. Discontinuation of imatinib in patients with chronic myeloid leukaemia who have maintained complete molecular remission for at least 2 years: the prospective, multicentre Stop Imatinib (STIM) trial. Lancet Oncol. 2010 Nov;11(11):1029-35. doi: 10.1016/S1470-2045(10)70233-3. Epub 2010 Oct 19. — View Citation

Richter J, Soderlund S, Lubking A, Dreimane A, Lotfi K, Markevarn B, Sjalander A, Saussele S, Olsson-Stromberg U, Stenke L. Musculoskeletal pain in patients with chronic myeloid leukemia after discontinuation of imatinib: a tyrosine kinase inhibitor withdrawal syndrome? J Clin Oncol. 2014 Sep 1;32(25):2821-3. doi: 10.1200/JCO.2014.55.6910. Epub 2014 Jul 28. No abstract available. — View Citation

Rousselot P, Charbonnier A, Cony-Makhoul P, Agape P, Nicolini FE, Varet B, Gardembas M, Etienne G, Rea D, Roy L, Escoffre-Barbe M, Guerci-Bresler A, Tulliez M, Prost S, Spentchian M, Cayuela JM, Reiffers J, Chomel JC, Turhan A, Guilhot J, Guilhot F, Mahon FX. Loss of major molecular response as a trigger for restarting tyrosine kinase inhibitor therapy in patients with chronic-phase chronic myelogenous leukemia who have stopped imatinib after durable undetectable disease. J Clin Oncol. 2014 Feb 10;32(5):424-30. doi: 10.1200/JCO.2012.48.5797. Epub 2013 Dec 9. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Measurement of cytokines: Measurement of cytokines: A variation of 20% in a given marker will be significant if it is observed in the group with "TKI WS" but not in the group without "TKI WS". Of note, the patient will be his own witness.
. In picogram/milliliter (pg/ml): IL2,IL 6, IL10, IL15, TGFß,TNFa, IFN?, VEGF, PDGFß,
at diagnosis and every month during 3 months
Primary Measurement of cytokines: In nanogram/milliliter (ng/ml) : Osteoprotegerin at diagnosis and every month during 3 months
Primary Measurement of cytokines: • In microgram/liter (µg/l): Tryptase at diagnosis and every month during 3 months
Primary Inflammatory markers: C reactive protein (milligramme/liter) at diagnosis and every month during 3 months
Primary Inflammatory markers: In international Unit/ liter (IU/l) Rheumatoid factor, at diagnosis and every month during 3 months
Primary Inflammatory markers: In international Unit/ liter (IU/l) Creatinine phosphokinase at diagnosis and every month during 3 months
Primary bone metabolism markers In microgram/ liter : Cross-laps at diagnosis and every month during 3 months.
Primary bone metabolism markers In microgram/ liter : Procollagen 1 at diagnosis and every month during 3 months.
Primary bone metabolism markers PTH (ParaTHormon) (nanogram/Liter) at diagnosis and every month during 3 months.
Primary bone metabolism markers In millimole/Liter: Phosphates at diagnosis and every month during 3 months.
Primary bone metabolism markers In millimole/Liter: Calcium. at diagnosis and every month during 3 months.
Secondary Brief Pain Inventory (BPI) questionnaire It will help to define the WS thanks to the calculation of the score of pain intensity. The score will be checked at the time the TKI is stopped (baseline) and then every month. Any increase of at least 2 points compared to the baseline will be significant enough to conclude to the TKI WS.
Pain intensity score is the mean of the scores of the four following questions in which the number 0 confers to "No pain" and 10 to "Pain as bad as the patient can imagine":
Please rate your pain by marking the box beside the number that best describes your pain at its worst in the last week.
Please rate your pain by marking the box beside the number that best describes your pain at its least in the last week
Please rate your pain by marking the box beside the number that best describes your pain on average
Please rate your pain by marking the box beside the number that tells how much pain you have right now
12 months
Secondary QDSA questionnaire It derives from the McGill questionnaire and describes the type of pain rated by the patient: None = 0; Mild = 1 Moderate =2 Severe = 3. It will complete the BPI questionnaire by giving precision on the type of pain:
-Throbbing, Shooting, Stabbing, Sharp ...
12 months
Secondary QLQ C-30 questionnaire It will explore the quality of life every 3 months 12 months
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