PLCG2 mutation

Allelic expression bias was also documented in phenotypically discordant family members with mutations in STAT1 and CARD11. This study highlights the importance of considering both the genotype and the 'transcriptotype' in analyses of the penetrance and expressivity of monogenic disorders.

Oral health care providers should include CLL in the differential diagnosis for multiple erythematous papules of the palatal mucosa, particularly in the presence of absolute lymphocytosis. Early recognition of oral manifestations associated with CLL can prompt a timely referral.

One acalabrutinib-treated patient and 4 ibrutinib-treated patients had emergent BTK/PLCG2 co-mutations. While common BTK C481 mutations were observed with both treatments, patterns of mutation and co-mutation frequency, mutation VAF, and uncommon BTK variants varied with acalabrutinib (T474I and E41V) and ibrutinib (L528W, A428D) in this patient population.

P1/2, N=209, Recruiting, Juno Therapeutics, a Subsidiary of Celgene | Active, not recruiting --> Recruiting | Trial completion date: Jul 2026 --> Nov 2027 | Trial primary completion date: Jul 2026 --> Nov 2027

P1, N=110, Recruiting, Carna Biosciences, Inc. | Phase classification: P1b --> P1

Re-emergent clones lacked BTK mutation and retained sensitivity to ibrutinib upon retreatment. NCT02251548.

Acquired mutations in BTK, PLCG2 and BCL2 are associated with resistance to continuous targeted agent therapy in chronic lymphocytic leukemia (CLL). Here, we discuss new evidence that limiting the duration of CLL therapy may prevent the evolution of such resistance mutations, potentially facilitating effective re-treatment strategies.

The results of Western blot showed that the protein expression levels of P65PI3K and p53 in the single drug group and the combination group were down-regulated in varying degrees, especially in the combination group（Figure 2). ConclusionIbrutinib combined with curcumin has synergistic killing effect on TP53- mutated CLL cells; Curcumin increases the killing effect of ibrutinib on TP53-mutated CLL cells by inhibiting PI3K and NFκB pathway, and degrading p53mt protein.

Of the 29 patients with PD, 19 have required retreatment (single-agent ibrutinib, n = 16, or ibrutinib plus venetoclax, n = 3); 17 achieved partial response or better, 1 achieved stable disease, and 1 is pending response assessment. First-line fixed-duration combination treatment with ibrutinib plus venetoclax may mitigate development of resistance mechanisms associated with continuous single-agent targeted therapies, allowing for effective retreatment.

Ibrutinib, Zanubrutinib, Orelabrutinib were administered in 55.3%,18.3% and 17.9% of patients respectively, in addition to 6 patients with Acalabrutinib and one with Loxo-305, among them 47.7% (125/262) received BTKi as first line treatment...Venetoclax-based regimen might be an effective salvage therapy which could showed a benefit trend in PFS as compared to other post BTKi therapy (10.1 months vs 3.1 months, p= 0.1818)...Acquired BTK/PLCG2 mutations remained to be key drivers of BTKis resistance and BTKC481S mutation was the dominant mutation, while BTKT474 mutation was only detected in Orelabrutinib-resistant patients. The prognosis was rather poor for relapsed patients especially for RTs, treatment strategy after disease progression remains to be optimized.