A Study to Investigate AG-236 in Subjects ≥18 Years of Age With Polycythemia Vera

Trial statusNot yet recruiting
Trial phasePhase 2, Phase 3
Trial typeInterventional
Biological sexAll
Age18+
SponsorAgios Pharmaceuticals, Inc.

About this trial

This clinical trial is a Phase 2/3 study that will determine the recommended dose and dose regimen of AG-236 and evaluate the efficacy, safety, and pharmacokinetics of AG-236 in polycythemia vera (PV) by testing how well AG-236 works compared to placebo to increase the number of subjects with no phlebotomy and absence of phlebotomy eligibility over a 13-week period. In addition, the long-term effect of AG-236 on efficacy and safety will be explored in an open-label extension portion.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

PV diagnosis according to 2022 World Health Organization (WHO) criteria.

At least 3 documented phlebotomies in the 6 months before randomization or at least 5 documented phlebotomies in the 12 months before randomization; and

At least 1 documented phlebotomy within the 3 months before randomization.

No phlebotomy within 6 days before randomization (not including the day of phlebotomy and the day of randomization in the 6-day count).

Disqualifiers

Use of any investigational or marketed N-acetylgalactosamine (GalNAc) targeting product less than 48 weeks before randomization or not recovered from effects of prior administration of any investigational or marketed GalNAc targeting product taken more than 48 weeks before randomization.

Currently receiving treatment with a hepcidin mimetic; the last dose must have been administered ≥6 months before randomization.

Currently receiving treatment with or history of any use of TMPRSS6 targeting molecules (antisense oligonucleotide [ASO], siRNA, antibodies) before randomization.

Clinically significant, active and/or uncontrolled hepatobiliary, renal, cardiac, or pulmonary disease.

Trial design

Design model

Sequential

Treatments tested in this trial

  • AG-236

    Drug

    SC Injection

  • Placebo

    Drug

    SC Injection

Treatment groups

245 Participants
are divided into 7 treatment groups

7

Treatment groups

See each treatment group below.

Group A: Phase 2: AG-236 Dose XExperimental treatment 2 interventions
Group B: Phase 2: AG-236 Dose YExperimental treatment 2 interventions
Group C: Phase 2: AG-236 Dose ZExperimental treatment 2 interventions
Group D: Phase 2: AG-236 Dose ZZExperimental treatment 1 intervention
Group E: Phase 2: PlaceboPlacebo comparator 1 intervention
Group F: Phase 3: AG-236Experimental treatment 1 intervention
Group G: Phase 3: PlaceboPlacebo comparator 1 intervention

Trial outcomes

Primary outcomes

1

Phase 2 and Phase 3: Percentage of Subjects With No Phlebotomy and Absence of Phlebotomy Eligibility

Time frame
Week 13 Through Week 26

Secondary outcomes

1

Phase 2 and Phase 3: Number of Phlebotomies During the Double-blind Period

Time frame
Up to Week 26
2

Phase 2: Percentage of Subjects Achieving Hematocrit (HCT) Response During the Double-blind Period

HCT response is defined as having at most one HCT assessment ≥45 percent (%) during the double-blind period.

Time frame
Up to Week 26
3

Phase 2 and Phase 3: Time to First HCT ≥45%

Time frame
Up to Week 26
4

Phase 2 and Phase 3: Number of Subjects With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)

Time frame
Up to Week 130

Other outcomes

Locations

This trial has no locations.

Sponsors and contacts

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