This Phase I clinical trial aims to evaluate the safety of the investigational drug TG-1701 both as a single-agent and in combination with other investigational drugs, specifically ublituximab and umbralisib. As per protocol v6.0, combination therapy (TG-1701 + Ublituximab + Umbralisib) will be discontinued and the participants from Arm 1 and 2 will be transitioned to the long-term extension period to receive TG-1701 monotherapy.
