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Alpha 1 Anti-Trypsin (AAT) in Treating Patients With Acute Graft-Versus-Host Disease GVHD)

Treatment of Steroid Non-responsive Acute GVHD With Alpha 1 Antitrypsin (AAT). A Phase I/II Study

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01523821
Enrollment
20
Registered
2012-02-01
Start date
2013-10-11
Completion date
2017-01-15
Last updated
2018-10-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Graft-Versus-Host Disease (GVHD) Acute on Chronic

Brief summary

This phase I/II trial evaluates the efficacy and adverse effects of alpha 1 anti-trypsin (AAT) for the treatment of acute graft-versus-host disease (GVHD) after hematopoietic stem cell transplantation.

Detailed description

PRIMARY OBJECTIVES: I. Determine the safety and tolerability of AAT in patients with steroid non-responsive acute GVHD. II. Characterize pharmacodynamic effects of AAT on pro-inflammatory cytokines, heparan sulfate, and the spectrum of peripheral blood T cells. III. Determine clinical responses of GVHD to AAT in patients with steroid non-responsive acute GVHD. OUTLINE: This is a phase I/II dose-escalation study of AAT. Patients will receive AAT intravenously (IV) on study days 1, 3, 5, and 7. Patients who experience no toxicity and in whom GVHD is stable or improved after the day 7 dose can continue therapy with AAT on days 9, 11, 13 and 15 for a total of 8 doses.

Interventions

DRUGAlpha 1-Proteinase Inhibitor, Human 1 MG [Glassia]

Alpha 1-Proteinase Inhibitor, Human 1 MG \[Glassia\] at various levels over different days

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH
Fred Hutchinson Cancer Center
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

The study will have three escalating alpha 1 anti-trypsin (AAT) dose cohorts with six patients in each cohort (Phase I). Based on response and toxicity, an additional six patients will be enrolled in the optimal dose (Phase II).

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients transplanted from related or unrelated, human leukocyte antigen (HLA) matched or mismatched donors * Patients transplanted with hematopoietic stem cells from any source * Patients receiving calcineurin inhibitors as part of graft versus host disease (GVHD) prophylaxis * Patients with acute GVHD grades II-IV developing despite GVHD prophylaxis * Patients who have not shown a satisfactory response to methylprednisolone-equivalent doses at 2 mg/kg/day, based on adjusted body weight * Signed and dated informed consent

Exclusion criteria

* Patients who have received any systemic agents in addition to steroids for treatment of GVHD * Patients unable to give informed consent * Patients with manifestations of classic chronic GVHD * Patients with evidence of recurrent malignancy * Patients with acute/chronic GVHD overlap syndrome * Patients whose GVHD developed after donor lymphocyte infusion (DLI) * Patients with severe organ dysfunction, defined as * On dialysis * Requiring oxygen (O2) at more than 2 l/min * Uncontrolled arrhythmia or heart failure * Veno-occlusive disease (sinusoidal obstruction syndrome) * Patients with uncontrolled infections

Design outcomes

Primary

MeasureTime frameDescription
Number (Percentage) of Patients at Each Dosing Cohort Who Experience no Toxicity and in Whom Graft Versus Host Disease (GVHD) is Stable or ImprovedAdverse events were reported through 15 days after the last dose of AAT. GVHD response assessed at study day 28.Toxicity and adverse events were assessed using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) v4.0. All adverse events were reported regardless of attribution to alpha 1 anti-trypsin (AAT). GVHD response was defined per standard criteria for improvement, no change or progression of signs/symptoms in skin rash (% body surface area), GI (nausea, vomiting, anorexia, diarrhea, GI bleeding, abdominal cramping) and hepatic function (serum bilirubin levels). For this outcome measure, the requirement for additional GVHD treatment beyond AAT was not included in the criteria for response (i.e patients who may have required additional GVHD treatment before study day 28 were not automatically categorized as non-responders or as having progressive GVHD).

Secondary

MeasureTime frameDescription
Number (Percentage) of Patients at Each Dosing Cohort Who Experience One or More Thrombotic or Thrombo-embolic EventsEvents were reported through 15 days after the last dose of AAT.Events were assessed using the NCI CTCAE v4.0.
Number (Percentage) of Patients at Each Dosing Cohort With Occurrence of InfectionsInfections were reported through 15 days after the last dose of AAT.Infections were assessed using NCI CTCAE v4.0.
Number (Percentage) of Patients at Each Dosing Cohort Experiencing an Unexpected Serious Adverse Event (SAE)SAEs were reported through 30 days after the last dose of alpha 1 anti-trypsin (AAT).Serious adverse events included death, a life-threatening adverse drug experience, inpatient hospitalization or prolongation of existing hospitalization, a persistent or significant disability/ incapacity, or congenital anomaly/birth defect. Significant events that do not meet these criteria may be considered serious if they jeopardize the patient and require a medical intervention to prevent one of the outcomes above. An unexpected adverse event is defined as an event that is not identified in nature, severity or frequency in the current investigator brochure/package insert/product information.
Number (Percentage) of Patients at Each Dosing Cohort Who Experience One or More Suspected Serious Adverse Reactions (Infusion Related Reactions)Within 48 hours after each infusionSerious adverse reactions were assessed by the NCI CTCAE v4.0.
Number (Percentage) of Patients at Each Dosing Cohort With Progression of GVHDGVHD responses were assessed on day 28 after starting AAT therapy or at time of death if patient died before study day 28.GVHD responses were assessed using criteria established by the Center for International Blood and Marrow Transplant Research and criteria from the Acute GVHD Activity Index. Patients who required additional systemic GVHD treatment beyond AAT before study day 28 were defined as having progressive GVHD.

Countries

United States

Participant flow

Recruitment details

Patients signed IRB-approved consents during the period of 12/11/13 to 12/22/16. Treatment with alpha 1 anti-trypsin (AAT) typically started within 24 hours of consent. Patients were identified by clinical staff as needing additional treatment for acute graft versus his disease (GVHD) following initial therapy with corticosteroids.

Participants by arm

ArmCount
Cohort 1 (30 mg/kg)
AAT will be administered intravenously at a dose of 90 mg/kg (loading dose) on day 1 followed by 30mg/kg (maintenance dose) QOD on days 3, 5, 7, 9, 11, 13 & 15. Alpha 1-Proteinase Inhibitor, Human 1 MG \[Glassia\]
8
Cohort 2 (60 mg/kg)
AAT will be administered intravenously at a dose of 90 mg/kg (loading dose) on day 1 followed by 60 mg/kg (maintenance dose) QOD on days 3, 5, 7, 9, 11, 13 & 15. Alpha 1-Proteinase Inhibitor, Human 1 MG \[Glassia\]
6
Cohort 3 (90 mg/kg)
AAT will be administered intravenously at a dose of 90 mg/kg on days 1, 3, 5, 7, 9, 11, 13 & 15. Alpha 1-Proteinase Inhibitor, Human 1 MG \[Glassia\]
6
Total20

Baseline characteristics

CharacteristicCohort 2 (60 mg/kg)Cohort 3 (90 mg/kg)Cohort 1 (30 mg/kg)Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
2 Participants0 Participants0 Participants2 Participants
Age, Categorical
Between 18 and 65 years
4 Participants6 Participants8 Participants18 Participants
Age, Continuous40 years51 years49 years48 years
Region of Enrollment
United States
6 participants6 participants8 participants20 participants
Sex: Female, Male
Female
0 Participants6 Participants3 Participants9 Participants
Sex: Female, Male
Male
6 Participants0 Participants5 Participants11 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
6 / 84 / 64 / 6
other
Total, other adverse events
8 / 86 / 66 / 6
serious
Total, serious adverse events
8 / 85 / 64 / 6

Outcome results

Primary

Number (Percentage) of Patients at Each Dosing Cohort Who Experience no Toxicity and in Whom Graft Versus Host Disease (GVHD) is Stable or Improved

Toxicity and adverse events were assessed using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) v4.0. All adverse events were reported regardless of attribution to alpha 1 anti-trypsin (AAT). GVHD response was defined per standard criteria for improvement, no change or progression of signs/symptoms in skin rash (% body surface area), GI (nausea, vomiting, anorexia, diarrhea, GI bleeding, abdominal cramping) and hepatic function (serum bilirubin levels). For this outcome measure, the requirement for additional GVHD treatment beyond AAT was not included in the criteria for response (i.e patients who may have required additional GVHD treatment before study day 28 were not automatically categorized as non-responders or as having progressive GVHD).

Time frame: Adverse events were reported through 15 days after the last dose of AAT. GVHD response assessed at study day 28.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1 (30 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort Who Experience no Toxicity and in Whom Graft Versus Host Disease (GVHD) is Stable or Improved6 Participants
Cohort 2 (60 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort Who Experience no Toxicity and in Whom Graft Versus Host Disease (GVHD) is Stable or Improved2 Participants
Cohort 3 (90 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort Who Experience no Toxicity and in Whom Graft Versus Host Disease (GVHD) is Stable or Improved2 Participants
Secondary

Number (Percentage) of Patients at Each Dosing Cohort Experiencing an Unexpected Serious Adverse Event (SAE)

Serious adverse events included death, a life-threatening adverse drug experience, inpatient hospitalization or prolongation of existing hospitalization, a persistent or significant disability/ incapacity, or congenital anomaly/birth defect. Significant events that do not meet these criteria may be considered serious if they jeopardize the patient and require a medical intervention to prevent one of the outcomes above. An unexpected adverse event is defined as an event that is not identified in nature, severity or frequency in the current investigator brochure/package insert/product information.

Time frame: SAEs were reported through 30 days after the last dose of alpha 1 anti-trypsin (AAT).

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1 (30 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort Experiencing an Unexpected Serious Adverse Event (SAE)2 Participants
Cohort 2 (60 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort Experiencing an Unexpected Serious Adverse Event (SAE)0 Participants
Cohort 3 (90 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort Experiencing an Unexpected Serious Adverse Event (SAE)0 Participants
Secondary

Number (Percentage) of Patients at Each Dosing Cohort Who Experience One or More Suspected Serious Adverse Reactions (Infusion Related Reactions)

Serious adverse reactions were assessed by the NCI CTCAE v4.0.

Time frame: Within 48 hours after each infusion

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1 (30 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort Who Experience One or More Suspected Serious Adverse Reactions (Infusion Related Reactions)0 Participants
Cohort 2 (60 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort Who Experience One or More Suspected Serious Adverse Reactions (Infusion Related Reactions)0 Participants
Cohort 3 (90 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort Who Experience One or More Suspected Serious Adverse Reactions (Infusion Related Reactions)0 Participants
Secondary

Number (Percentage) of Patients at Each Dosing Cohort Who Experience One or More Thrombotic or Thrombo-embolic Events

Events were assessed using the NCI CTCAE v4.0.

Time frame: Events were reported through 15 days after the last dose of AAT.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1 (30 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort Who Experience One or More Thrombotic or Thrombo-embolic Events0 Participants
Cohort 2 (60 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort Who Experience One or More Thrombotic or Thrombo-embolic Events0 Participants
Cohort 3 (90 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort Who Experience One or More Thrombotic or Thrombo-embolic Events0 Participants
Secondary

Number (Percentage) of Patients at Each Dosing Cohort With Occurrence of Infections

Infections were assessed using NCI CTCAE v4.0.

Time frame: Infections were reported through 15 days after the last dose of AAT.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1 (30 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort With Occurrence of Infections7 Participants
Cohort 2 (60 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort With Occurrence of Infections5 Participants
Cohort 3 (90 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort With Occurrence of Infections5 Participants
Secondary

Number (Percentage) of Patients at Each Dosing Cohort With Progression of GVHD

GVHD responses were assessed using criteria established by the Center for International Blood and Marrow Transplant Research and criteria from the Acute GVHD Activity Index. Patients who required additional systemic GVHD treatment beyond AAT before study day 28 were defined as having progressive GVHD.

Time frame: GVHD responses were assessed on day 28 after starting AAT therapy or at time of death if patient died before study day 28.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1 (30 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort With Progression of GVHD4 Participants
Cohort 2 (60 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort With Progression of GVHD5 Participants
Cohort 3 (90 mg/kg)Number (Percentage) of Patients at Each Dosing Cohort With Progression of GVHD4 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026