A Proof-of-concept Trial to Evaluate the Safety and Efficacy of UB-421 Plus Chidamide in Changing HIV Reservoirs

A Phase II Proof-of-concept Trial to Evaluate the Safety and Efficacy of UB-421 Plus Chidamide in Changing HIV Reservoirs Among ART Stabilized HIV-1 Patients Who Undergo ART Interruption

This is a phase II proof-of-concept trial study to assess the safety and efficacy of UB-421 monotherapy plus chidamide in changing the latent HIV reservoir among ART-treated HIV-1 adults with stably viral suppression who undergo ART interruption.

Inclusion Criteria:

1. HIV-1 sero-positive, with documented HIV-1 infection by official, signed, written history
2. Male with body weight ≥ 50 kg or female with body weight ≥ 45 kg, aged 20 years or older.
3. No breastfeeding or pregnancy for women.
4. Have been receiving ART for more than 3 years by screening visit 1 (SV1).
5. Both male and female patients and their partners of childbearing potential must agree to use 2 medically accepted methods of contraception
6. Subjects must sign the informed consent before undergoing any study procedures.

Exclusion Criteria:

1. Subjects with active systemic infections, except for HIV-1
2. Any exposure to a monoclonal antibody within 12 weeks prior to the first dose of study drug.
3. Current receiving treatment regimen for hepatitis B, hepatitis C or latent tuberculosis
4. Any alcohol or illicit drug use
5. Receipt of any other investigational study agent(s) within 90 days before SV2.
6. Currently on the treatment for diabetes.