A Phase II Study in Patients With Moderate to Severe Active Ulcerative Colitis.

Reistone Biopharma

Status and phase: Completed; Phase 2

Conditions: Ulcerative Colitis

Treatments: Drug: Placebo; Drug: SHR0302

Study type: Interventional

Funder types: Industry

Identifiers

NCT03675477

RSJ10101

2018-003364-31 (EudraCT Number)

Details and patient eligibility

About

The proposed study is a randomized, double-blind,placebo-controlled, multicenter phase II study to investigate the safety and efficacy of SHR0302 in patients with moderate to severe active ulcerative colitis. The study aims to evaluate the optimal dose of SHR0302 and time needed to induce clinical response in active ulcerative colitis patients.

This is an 8+8 weeks study, in which participants who complete the first 8 weeks treatment phase, will have the option to enter a blinded active arms 8-week extension phase. Early withdrawn subjects during the first treatment phase can not enter the extension phase. The total duration of the study participation, including extension and follow-up, will be approximately 18 weeks.

SHR0302 is a Janus kinase 1(JAK1) inhibitor, capable of blocking Janus kinase-signal transducer and activator of transcription (JAK-STATs) pathway and controlling inflammation. Therefore it has the potential to be a treatment for ulcerative colitis.

Enrollment: 164 patients

Sex: All

Ages: 18 to 75 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Male and Female subject age ≥ 18 and ≤75 years of age at randomization.
• Active ulcerative colitis with a 9-point modified Mayo score of 5 to 9 points and endoscopic subscore of 2 to 3 (The duration of the time between endoscopy and baseline should not exceed 10 days and allow central over read turn over before randomization).
• Subject should have at least three-month history of Ulcerative Colitis diagnosis at randomization.

Exclusion criteria

• Diagnosis of indeterminate colitis, or clinical findings suggestive of Crohn's disease.
• Subjects with ulcerative colitis, which is confined to a proctitis (distal 15 cm or less).
• Treatment naïve subjects diagnosed with ulcerative colitis (without previous exposure to treatment).

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

---

164 participants in 4 patient groups, including a placebo group

SHR0302 8mg QD

Experimental group

Description:

Participants randomized in this arm will receive SHR0302 8mg QD for the treatment phase. All participants that had completed the 8-week treatment phase (non-responders or responders) had the option to enter a blinded 8-week extension phase to continue to receive SHR0302 8mg QD. Those who had completed the first 8-week of the treatment phase, but decided not to enter into the extension phase were also required to attend the 2-week follow-up visit. Participants who immaturely withdrew during the first treatment phase could not enter the extension phase. SHR0302: The study drug, SHR0302, is designed to block the activity of an enzyme protein called JAK (known as a JAK inhibitor).

Treatment:

Drug: SHR0302

SHR0302 4mg BD

Experimental group

Description:

Participants randomized in this arm will receive SHR0302 4mg BD for the treatment phase. All participants that had completed the 8-week treatment phase (non-responders or responders) had the option to enter a blinded 8-week extension phase to continue to receive SHR0302 4mg BD. Those who had completed the first 8-week of the treatment phase, but decided not to enter into the extension phase were also required to attend the 2-week follow-up visit. Participants who immaturely withdrew during the first treatment phase could not enter the extension phase. SHR0302: The study drug, SHR0302, is designed to block the activity of an enzyme protein called JAK (known as a JAK inhibitor).

Treatment:

Drug: SHR0302

SHR0302 4mg QD

Experimental group

Description:

Participants randomized in this arm will receive SHR0302 4mg QD for the treatment phase. All participants that had completed the 8-week treatment phase (non-responders or responders) had the option to enter a blinded 8-week extension phase to continue to receive SHR0302 4mg QD. Those who had completed the first 8-week of the treatment phase, but decided not to enter into the extension phase were also required to attend the 2-week follow-up visit. Participants who immaturely withdrew during the first treatment phase could not enter the extension phase. SHR0302: The study drug, SHR0302, is designed to block the activity of an enzyme protein called JAK (known as a JAK inhibitor).

Treatment:

Drug: SHR0302

placebo

Placebo Comparator group

Description:

Participants randomized in this arm will receive the placebo until week 8, and then will be re-randomized into one of the 3 active arms ( 4mg QD, 4mg BD, 8mg QD of SHR0302) in a 1:1:1 allocation ratio until the end of the study at week 16. Those who had completed the first 8-week of the treatment phase, but decided not to enter into the extension phase were also required to attend the 2-week follow-up visit. Participants who immaturely withdrew during the first treatment phase could not enter the extension phase. SHR0302: The study drug, SHR0302, is designed to block the activity of an enzyme protein called JAK (known as a JAK inhibitor). Placebos: Placebo Oral Tablet

Treatment:

Drug: Placebo

Drug: SHR0302