Effects of anagrelide: A Synthesis of Findings from 24 Studies
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Main Research Findings
Anagrelide has been studied for its efficacy, safety, and tolerability as a second-line treatment for essential thrombocythemia (ET) in high-risk Japanese patients. 3 A single-arm study involving 53 patients found that 67.9% experienced a platelet response (<60 × 10(4)/μL) and 45.3% achieved platelet count normalization (≤40 × 10(4)/μL) after receiving anagrelide therapy. 1 Anagrelide has been evaluated for its efficacy, safety, and tolerability in Japanese ET patients as both a monotherapy and in combination with hydroxycarbamide. These studies suggest that anagrelide can effectively reduce platelet counts in Japanese ET patients.
While anagrelide can be effective in lowering platelet counts in ET patients, it comes with potential side effects. Common side effects reported include anemia, headache, palpitations, and diarrhea. 3 In addition, 7 reported a case of Takotsubo cardiomyopathy developing during anagrelide therapy, highlighting the potential for cardiovascular side effects.
Anagrelide may be a viable treatment option for ET patients, but its use should be approached cautiously. Factors such as platelet count levels, patient history, and interactions with other medications should be carefully considered before administering anagrelide. 15 reports a case of anagrelide-induced nonischemic cardiomyopathy.
Benefits and Risks
Benefits Summary
Anagrelide has shown potential for reducing platelet counts in ET patients. 3 , 1 This reduction may help minimize the risk of thrombosis and bleeding associated with ET.
Risks Summary
Anagrelide use comes with the risk of side effects, including anemia, headache, palpitations, and diarrhea. 3 There is also a potential for serious adverse events like Takotsubo cardiomyopathy and nonischemic cardiomyopathy. 7 , 15 Caution is necessary when using anagrelide.
Study Comparison
Study Commonalities
These studies suggest that anagrelide can effectively reduce platelet counts in Japanese ET patients. 3 , 1 They also indicate that anagrelide can cause side effects like anemia, headache, palpitations, and diarrhea. 3 These side effects are often mild or moderate.
Study Differences
3 was a single-arm study involving high-risk ET patients, while 1 was a retrospective study comparing anagrelide as a monotherapy and in combination therapy. The studies differed in their approach to anagrelide administration and the endpoints they evaluated. Therefore, direct comparisons of these research findings are not feasible.
Consistency and Discrepancies of Findings
These studies suggest that anagrelide can effectively reduce platelet counts in ET patients. However, research on anagrelide's safety and effectiveness remains ongoing and more extensive investigation is needed. 7 , 15 These studies point to the potential of anagrelide to impact the heart, and its use requires careful consideration.
Real-World Application Considerations
Anagrelide has shown potential for reducing platelet counts in ET patients. 3 , 1 However, the possibility of cardiovascular complications associated with anagrelide use necessitates cautiousness. 7 , 15 Before considering anagrelide treatment, a thorough discussion with a physician to understand the benefits and risks is crucial.
Limitations of Current Research
These studies, while informative, are relatively small and lack comprehensive data on anagrelide's long-term safety and effectiveness. 3 , 1 Further research is necessary to gain a deeper understanding of anagrelide's long-term effects and optimize its use.
Future Research Directions
Future studies should investigate the long-term safety and effectiveness of anagrelide. Research focused on determining the optimal dosage and administration methods for anagrelide is also warranted. 3 , 1 Furthermore, more in-depth research on anagrelide's impact on the cardiovascular system is needed. These research efforts could pave the way for anagrelide to become a safer and more effective treatment option for ET patients.
Conclusion
Anagrelide demonstrates the potential to reduce platelet counts in ET patients. 3 , 1 However, its use should be approached with caution due to potential cardiac complications. 7 , 15 Before considering anagrelide treatment, it is vital to consult with a physician to understand the benefits and risks associated with its use.
Benefit Keywords
Risk Keywords
Article Type
Author: SekiguchiYasunobu, WakabayashiMutsumi, TakizawaHaruko, IizukaHiroko, SakajiriSakura, SugimotoKeiji, InanoTadaaki, FukudaYasutaka, HamanoYasuharu, TomitaShigeki, IzumiHiroshi, OkuboMitsuo, NakamuraNoriko, SawadaTomohiro, NoguchiMasaaki
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Author: ReyJérôme, ViallardJean-François, KeddadKarim, SmithJonathan, WildePaul, KiladjianJean-Jacques,
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Author: AhluwaliaM, DonovanH, SinghN, ButcherL, ErusalimskyJ D
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Author: NagashimaTakahiro, HaradaShinpei, KimuraHiroyuki
Language : Japanese
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Author: PenkaM, SchwarzJ, OvesnáP, HlusíA, KorístekZ, DoubekM, DulícekP, PospísilováD, KissováJ, BulikováA, PavlíkT,
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Author: Vygovs'kaIa I, Karol'Iu S, IevstakhevichIu L, DiakivH L, BuzherakN F, Vygovs'kaO Ia, MasliakZ V
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Author: HwangJae Ha, KimDong Wan, KimKwang Seog, LeeSam Yong
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Author: IványiJános László, MartonÉva, PlanderMárk, SzendreiTamás
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Author: Martínez-SellésManuel, DatinoTomás, Figueiras-GrailletLourdes, GamaJoubert G, JonesChristopher, FranklinRichard, Fernández-AvilésFrancisco
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Author: KiladjianJean-Jacques, BessesCarlos, GriesshammerMartin, GugliottaLuigi, HarrisonClaire, CollRuth, SmithJonathan, BirgegårdGunnar
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Author: BessesCarlos, ZellerWolfgang, Alvarez-LarránAlberto, CollRuth, TroySteven, PurkayasthaJaideep, MartinPatrick, FreitagChristian
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Author: ThieleJuergen, KvasnickaHans Michael, Schmitt-GraeffAnnette
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Author: SakuraiKazuki, FujiwaraTohru, HasegawaShin, OkitsuYoko, FukuharaNoriko, OnishiYasushi, Yamada-FujiwaraMinami, IchinohasamaRyo, HarigaeHideo
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Cardiovascular Safety of Anagrelide Hydrochloride versus Hydroxyurea in Essential Thrombocythaemia.
Author: GoticMirjana, EgyedMiklos, GerchevaLiana, WarzochaKrzysztof, KvasnickaHans Michael, AchenbachHeinrich, WuJingyang
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Author: CozzaniEmanuele, IurloAlessandra, MerloGiulia, CattaneoDaniele, BurlandoMartina, PierriIvana, GugliottaLuigi, ParodiAurora
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Author: Almeida-DiasRaquel, GarroteMarta, CidJoan, MustielesMaria-Jesús, AlbaCristina, LozanoMiquel
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Author: GugliottaLuigi, BessesCarlos, GriesshammerMartin, HarrisonClaire, KiladjianJean-Jacques, CollRuth, SmithJonathan, AbhyankarBrihad, BirgegårdGunnar
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Author: BirgegårdGunnar, BessesCarlos, GriesshammerMartin, GugliottaLuigi, HarrisonClaire N, HamdaniMohamed, WuJingyang, AchenbachHeinrich, KiladjianJean-Jacques
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Author: SugawaraMasafumi, OkadaSho, KandaMasato, IsekiTohru, SakaidaEmiko, KobayashiYoshio
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