Across rheumatic diseases

Eltrombopag for the treatment of refractory connective tissue disease-related thrombocytopenia: a pilot study of 52 cases

Arthritis Res TherPublished Pilot observational study

Authors' conclusion

For refractory CTD-ITP patients, Eltrombopag demonstrated significant clinical improvement, safety, and a steroid-sparing effect with prolonged use.

Study context

Population
Refractory CTD-ITP patients unresponsive to or intolerant of conventional medicationsmedian follow-up 6 months
Participants
52 participants
Outcome
Therapeutic effectiveness (durable overall remission)
Methodological detailssingle-arm
  • Single-arm

Main finding

As reported in the abstract

Durable overall remission

Patients achieving durable overall remission

36

90%

Observational data: associations, not effects.

Further findings

Remission rates over time

Remission rate at month 1
67.5%
Remission rate at month 2
87.5%
Remission rate at month 3
97.5%
Remission rate at month 6
95%

Platelet count · within 2 weeks

Median platelet count reached (significant improvement, p = 0.003)
50 × 109/L

Disease activity indices in SLE and pSS

Disease activity indices reduced in SLE and pSS (p = 0.016)

GC tapering

Reduced disease activity allowed GC tapering (p = 0.004)

No response and relapse

No response
1
Relapsed
4

Factors associated with efficacy

Protopathy, comorbidity and prior treatment associated with efficacy

Safety

Patients with clinically relevant adverse events
15 (28.8%)

Original publication

Eltrombopag for the treatment of refractory connective tissue disease-related thrombocytopenia: a pilot study of 52 cases. Arthritis Res Ther. Published 10 January 2025. doi:10.1186/s13075-024-03472-w

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