A Study of STAR-0215 in Participants With Hereditary Angioedema
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ClinicalTrials.gov Identifier: NCT05695248 |
Recruitment Status :
Recruiting
First Posted : January 23, 2023
Last Update Posted : March 13, 2023
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Hereditary Angioedema | Drug: STAR-0215 | Phase 1 Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 18 participants |
Allocation: | Non-Randomized |
Intervention Model: | Sequential Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase 1b/2 Single and Multiple Dose Study to Assess the Safety, Tolerability, Clinical Activity, Pharmacokinetics, Pharmacodynamics, and Immunogenicity of STAR-0215 in Participants With Hereditary Angioedema (The ALPHA-STAR Trial) |
Actual Study Start Date : | February 21, 2023 |
Estimated Primary Completion Date : | November 2024 |
Estimated Study Completion Date : | November 2024 |

Arm | Intervention/treatment |
---|---|
Experimental: Cohort 1 - Single Dose
Participants will receive 1 dose of STAR-0215.
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Drug: STAR-0215
STAR-0215 will be administered as a subcutaneous bolus injection. |
Experimental: Cohort 2 - Multiple Dose
Participants will receive 2 doses of STAR-0215 administered 3 months apart.
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Drug: STAR-0215
STAR-0215 will be administered as a subcutaneous bolus injection. |
- Number of Participants Experiencing Treatment-emergent Adverse Events [ Time Frame: Day 1 through Day 168 (Cohort 1) and Day 251 (Cohort2) ]
- Change From Baseline In Monthly HAE Attack Rate [ Time Frame: Baseline through Day 168 (Cohort 1) and Day 251 (Cohort 2) ]
- Severity Of HAE Attacks Experienced By Participants [ Time Frame: Cohort 1: Day 1 through Day 168; Cohort 2: Day 1 through Day 251 ]All HAE attacks will be classified according to severity (mild, moderate, and severe).
- Duration Of HAE Attacks [ Time Frame: Cohort 1: Day 1 through Day 168; Cohort 2: Day 1 through Day 251 ]Duration will be reported as shorter than 12 hours, 12 to 24 hours, 24 to 48 hours, and longer than 48 hours.
- Number of Participants Experiencing HAE Attacks Requiring On-demand Therapy [ Time Frame: Cohort 1: Day 1 through Day 168; Cohort 2: Day 1 through Day 251 ]
- Time To First HAE Attack After First And Last Dosing [ Time Frame: Cohort 1: Day 1 through Day 168; Cohort 2: Day 1 through Day 251 ]
- Serum Concentration Of STAR-0215 [ Time Frame: Cohort 1: Day 1 (pre-infusion, up to 4 hours post dose); Days 2, 7, 14, 28, 56, 84, 112, 140, and 168; Cohort 2: Days 1 and 84 (pre-infusion, up to 4 hours post dose); Days 2, 7, 14, 28, 56, 85, 90, 97, 111, 139, 167, 209, and 251 ]Blood samples will be collected to measure the serum concentration of STAR-0215 before and after study drug administration.
- Plasma Levels Of Cleaved High-molecular-weight Kininogen [ Time Frame: Cohort 1: Day 1 (pre-infusion, up to 4 hours post dose); Days 2, 7, 14, 28, 56, 84, 112, 140, and 168; Cohort 2: Days 1 and 84 (pre-infusion, up to 4 hours post dose); Days 2, 7, 14, 28, 56, 85, 90, 97, 111, 139, 167, 209, and 251 ]Blood samples will be collected to measure the plasma levels of cleaved high-molecular-weight kininogen (a measure of plasma kallikrein activity).
- Number Of Participants With Anti-drug Antibodies To STAR-0215 [ Time Frame: Cohort 1: Day 1 (pre-infusion); Days 14, 28, 56, 84, 112, 140, and 168; Cohort 2: Days 1 and 84 (pre-infusion); Days 14, 28, 56, 111, 167, and 251 ]Blood samples will be collected to assess the formation of STAR-0215 anti-drug antibodies in serum before and after study drug administration.

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
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Documented diagnosis of HAE (type I or II). The following must be met:
a. Documented clinical history consistent with HAE (for example, subcutaneous or mucosal, nonpruritic swelling episodes without accompanying urticaria).
- Experienced at least 4 HAE attacks within the 12 months prior to Screening, per participant report.
- Experienced at least 2 HAE attacks during the Run-In period, as confirmed by an investigator based on meeting the protocol-specified definition of an HAE attack.
Exclusion Criteria:
- Any concomitant diagnosis of another form of chronic angioedema, such as acquired C1 inhibitor deficiency, HAE with normal C1-INH (also known as HAE type III), idiopathic angioedema, or angioedema associated with urticaria.
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Use of therapies prescribed for the prevention of HAE attacks prior to Screening:
- lanadelumab within 90 days
- berotralstat within 21 days
- all other prophylactic therapies, within 7 days
- Any exposure to angiotensin-converting enzyme inhibitors or any estrogen containing medications with systemic absorption (such as hormonal contraceptives or hormone replacement therapy) within 28 days prior to Screening.
- Any exposure to androgens (for example, stanozolol, danazol, oxandrolone, methyltestosterone, testosterone) within 7 days prior to Screening.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05695248
Contact: Christopher Morabito, MD | 1-617-349-1971 | cmorabito@astriatx.com |
United States, Arkansas | |
Little Rock Allergy & Asthma Clinical Research Center | Recruiting |
Little Rock, Arkansas, United States, 72205 | |
United States, California | |
Allergy & Asthma Clinical Research | Recruiting |
Walnut Creek, California, United States, 94598 |
Responsible Party: | Astria Therapeutics, Inc. |
ClinicalTrials.gov Identifier: | NCT05695248 |
Other Study ID Numbers: |
STAR-0215-201 2022-502953-32 ( EudraCT Number ) |
First Posted: | January 23, 2023 Key Record Dates |
Last Update Posted: | March 13, 2023 |
Last Verified: | March 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
HAE Angioedema |
Angioedema Angioedemas, Hereditary Vascular Diseases Cardiovascular Diseases Urticaria Skin Diseases, Vascular Skin Diseases |
Hypersensitivity, Immediate Hypersensitivity Immune System Diseases Hereditary Complement Deficiency Diseases Primary Immunodeficiency Diseases Genetic Diseases, Inborn Immunologic Deficiency Syndromes |