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Scleroderma Treatment With Autologous Transplant (STAT) Study

A Phase II Multi-center Study of High-Dose Cyclophosphamide and Antithymocyte Globulin Followed by Autologous Hematopoietic Cell Transplantation With Post Transplant Maintenance for the Treatment of Systemic Sclerosis

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01413100
Acronym
STAT
Enrollment
21
Registered
2011-08-10
Start date
2011-09-15
Completion date
2024-09-11
Last updated
2025-01-07

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

Conditions

Systemic Scleroderma

Brief summary

This phase II trial studies how well giving cyclophosphamide and anti-thymocyte globulin together followed by peripheral blood stem cell transplant (PBSCT) and mycophenolate mofetil works in treating patients with systemic scleroderma (SSc). Stem cells are collected from the patient's blood and stored prior to treatment. To store the stem cells patients are given colony-stimulating factors, such as filgrastim (G-CSF) or chemotherapy (cyclophosphamide) to help stem cells move from the bone marrow to the blood so they can be collected and stored. After storage, patients are then given high-dose chemotherapy, cyclophosphamide, and immunosuppression with anti-thymocyte globulin to suppress the immune system to prepare for the transplant. The stem cells are then returned to the patient to replace the blood-forming cells that were destroyed by the chemotherapy and immunosuppression. After the stem cells have engrafted and have matured enough to support the immune system at approximately 2-3 months, patients are given a medication called mycophenolate mofetil (MMF) or Myfortic. This medication is given to prevent worsening or reactivation of SSc and is referred to as maintenance therapy.

Detailed description

OUTLINE: STEM CELL MOBILIZATION AND PREPARATION: Patients receive filgrastim subcutaneously (SC) on mobilization days 1-4 followed by apheresis until a target dose of CD34+ cells \>= 2.5 x 10\^6/kg are collected. Patients difficult to mobilize with filgrastim alone receive cyclophosphamide intravenously (IV) or \*plerixafor subcutaneously (SC) on mobilization days 1-2 and filgrastim SC on mobilization days 5-7. HDIT CONDITIONING: Patients receive high-dose cyclophosphamide IV over 1-2 hours on days -5 to -2 and anti-thymocyte globulin IV on days -5, -3, -1, 1, 3, and 5. TRANSPLANTATION: Patients undergo autologous PBSCT on day 0. MAINTENANCE THERAPY: Beginning 2-3 months after transplant, patients receive mycophenolate mofetil orally (PO) twice daily (BID) for 2 years. NOTE: \*Plerixafor is an alternative to the cyclophosphamide based mobilization. After completion of study treatment, patients are followed at 1 month, weeks 12 and 26, and then annually for 5 years.

Interventions

BIOLOGICALAnti-Thymocyte Globulin

Given IV

PROCEDUREAutologous Hematopoietic Stem Cell Transplantation

Undergo autologous PBSCT

DRUGCyclophosphamide

Given IV

BIOLOGICALFilgrastim

Given SC

OTHERLaboratory Biomarker Analysis

Correlative studies

DRUGMycophenolate Mofetil

Given PO

PROCEDUREPeripheral Blood Stem Cell Transplantation

Undergo autologous PBSCT

DRUGPlerixafor

Given SC

OTHERQuality-of-Life Assessment

Ancillary studies

OTHERQuestionnaire Administration

Ancillary studies

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Fred Hutchinson Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
No minimum to 70 Years
Healthy volunteers
No

Inclusion criteria

* Patients with SSc as defined by the American College of Rheumatology with diffuse cutaneous disease (except Group 5) at risk of disease progression * Patients must have failed a prior \>= 4-mponth course of either MMF/Myfortic or cyclophosphamide before being eligible for the study (determined at \>= 1 week before start of mobilization); failure is defined as evidence of disease progression or absence of improvement; the response prior to MMF of cyclophosphamide will be assessed by the participating site study rheumatologist * Patients must meet eligibility in at least 1 of the following 6 groups: * GROUP 1: * Patients must have 1) both a and b below; and 2) either c, or d * a) Diffuse cutaneous scleroderma as defined by skin thickening proximal to the elbows and knees and/or involving the torso in addition to distal extremity involvement; a skin score will be obtained but not used to determine eligibility * b) Duration of systemic sclerosis =\< 7 years from the onset of first non-Raynaud's symptom; for those patients with disease activity between 5-7 years from the onset of first non-Raynaud's symptom, recent progression or activity of disease must be documented * c) Presence of SSc-related pulmonary disease with forced vital capacity (FVC) \< 80% or hemoglobin-adjusted diffusing capacity for carbon monoxide (DLCO) \< 70% of predicted AND evidence of alveolitis or SSc-related interstitial lung disease by high-resolution chest computed tomography (CT) scan and/or by bronchoalveolar lavage (BAL) (interstitial lung disease may be nonspecific interstitial pneumonia \[NSIP\] or usual interstitial pneumonia \[UIP\]; a bronchoalveolar lavage \[BAL\] should be done to confirm the findings of alveolitis only if the high resolution CT scan \[HRCT\] fails to show findings typically associated with systemic sclerosis changes \[ground glass NSIP, UIP, SSc related interstitial lung disease\]); alveolitis by BAL cell count will be defined based on a BAL cell differential count (\> 3% neutrophils and/or \> 2% eosinophils) from any lavaged lobe * d) History of SSc-related renal disease that may not be active at the time of screening; stable serum creatinine must be documented for a minimum of 3 months post-renal crisis at the time of the baseline visit; history of scleroderma hypertensive renal crisis is included in this criterion and is defined as follows: * History of new-onset hypertension based on any of the following (measurements must be repeated and confirmed at least 2 hours apart within 3 days of first event-associated observation, with a change from baseline): * Systolic blood pressure (SBP) \>= 140 mmHg * Diastolic blood pressure (DBP) \>= 90 mmHg * Rise in SBP \>= 30 mmHg compared to baseline * Rise in DBP \>= 20 mmHg compared to baseline * AND one of the following 5 laboratory criteria: * Increase of \>= 50 % above baseline in serum creatinine * Proteinuria: \>= 2+ by dipstick confirmed by protein:creatinine ratio \> 2.5 * Hematuria: \>= 2+ by dipstick or \> 10 red blood cell (RBC)s/hematopoietic-promoting factor (HPF) (without menstruation) * Thrombocytopenia: \< 100,000 platelets/mm\^3 * Hemolysis: by blood smear or increased reticulocyte count * The above definition of SSc hypertensive renal crisis is independent of whether concomitant anti-hypertensive medications are used * Subjects who present with solely skin and renal disease in the absence of other organ involvement, except classic SSc renal crisis as described above and including non-hypertensive renal crisis, must see a nephrologist to confirm that their renal disease is secondary to only SSc * Note: Subjects may be re-screened if they fail to meet inclusion criteria on initial evaluation * GROUP 2: * Progressive pulmonary disease as defined by a decrease in the FVC or DLCO-adjusted by 10 or 15 percent or greater, respectively, from a prior FVC or DLCO-adjusted in the previous 18-month period * Patients will have diffuse cutaneous disease and may have both FVC and DLCOcorr \>= 70% at screening for the study * Patients must also have evidence of alveolitis as defined by abnormal chest computed tomography (CT) or bronchoalveolar lavage (BAL) * GROUP 3: Diffuse scleroderma with disease duration =\< 2 years since development of first sign of skin thickening plus modified Rodnan skin score \>= 25 plus either * Erythrocyte sedimentation rate (ESR) \> 25 mm/1st hour and/or hemoglobin (Hb) \< 11 g/dL, not explained by causes other than active scleroderma * Lung involvement (either FVC or DLCO \< 80% and evidence of interstitial lung disease by CT scan or alveolitis by BAL) * GROUP 4: Diffuse scleroderma with disease duration =\< 2 years and skin score \>= 30 * GROUP 5: * Limited cutaneous scleroderma and SSc-related pulmonary disease with FVC \< 80% or hemoglobin-adjusted DLCO \< 70% of predicted * AND evidence of alveolitis/interstitial lung disease by high-resolution chest CT scan and/or by BAL (interstitial lung disease may be nonspecific interstitial pneumonia \[NSIP\] or usual interstitial pneumonia \[UIP\]; A bronchoalveolar lavage \[BAL\] should be done to confirm the findings of alveolitis only if the high resolution CT scan \[HRCT\] fails to show findings typically associated with systemic sclerosis changes \[ground glass, NSIP, UIP, SSc related interstitial lung disease\]) * Alveolitis by BAL cell count will be defined based on a BAL cell differential count (\> 3% neutrophils and/or \> 2% eosinophils) from any lavaged lobe * GROUP 6: Progressive gastrointestinal disease as defined by all of the following items: * Disease duration of scleroderma =\< 2 years. * Documented severe malabsorption syndrome requiring nutritional support; severe malabsorption syndrome is \> 10% weight loss and on total parenteral nutrition (TPN) or enteral feedings * High score on distention/ bloating scale (\>= 1.60 out of 3.00) on gastrointestinal (GI) questionnaire

Exclusion criteria

* Subjects with pulmonary, cardiac, hepatic, or renal impairment that would limit their ability to receive cytoreductive therapy and compromise their survival; this includes, but is not restricted to, subjects with any of the following: * Pulmonary dysfunction defined as: * Severe pulmonary dysfunction with (1) a hemoglobin corrected DLCO \< 40% of predicted at the Baseline Screening visit, or (3) FVC \< 45% of predicted Baseline Screening visit, or * Partial pressure (pO2) \< 70 mmHg or pCO2 \>= 45 mmHg without supplemental oxygen, or * O2 saturation \< 92% at rest without supplemental oxygen as measured by forehead pulse oximeter * Significant pulmonary artery hypertension (PAH) defined as: * Peak systolic pulmonary artery pressure \> 50 mmHg by resting echocardiogram will require right heart catheterization; if pulmonary artery pressure (PAP) is not evaluable on echocardiogram due to lack of a Tricuspid regurgitant jet, then normal anatomy and function as evidenced by normal right atrium and ventricle size, shape and wall thickness and septum shape must be documented to rule-out PAH; otherwise, right heart catheterization is indicated; prior history of PAH but controlled with medications will not exclude patients from the protocol; PAH is considered controlled with medications if peak systolic pulmonary artery pressure is \< 45 mmHg or mean pulmonary artery pressure by right heart catheterization is \< 30 mmHg at rest * Mean pulmonary artery pressure by right heart catheterization exceeding 30 mmHg at rest; if mean PAP is elevated and pulmonary vascular resistance and transpulmonary gradient are normal then the patient is eligible for the protocol * New York Heart Association (NYHA)/World Health Organization Class III or IV * Cardiac: Uncontrolled clinically significant arrhythmias; clinical evidence of significant congestive heart failure (CHF) (NYHA Class III or IV); left ventricular ejection fraction (LVEF) \< 50% by echocardiogram * History/presence of arrhythmia (even controlled) on chemical anti-arrhythmic(s) must have cardiac consult to ensure the subject could safely proceed with protocol requirements * Significant renal pathology defined as: * Estimated creatinine clearance (CrCl) \< 40 mL/min (using Cockcroft-Gault formula based on actual body weight) and serum creatinine \> 2.0 mg/dL; OR * Active, untreated SSc renal crisis at the time of enrollment; presence of nephrotic range proteinuria (defined as \>= 3.5 gms/24 hours, or protein:creatinine ratio \>= 3.5), active urinary sediment, urinary RBCs \> 25 per HPF, or red cell casts require further investigation by a nephrologist to rule out glomerulonephritis, overlap syndromes, or other causes of renal disease in all subjects; subjects with glomerulonephritis or overlap syndromes will be excluded * Hepatic: Active hepatitis (alanine aminotransferase \[ALT\], aspartate aminotransferase \[AST\], or bilirubin \> 2 times the upper limit of normal \[ULN\]) or evidence of moderate to severe periportal fibrosis by liver biopsy * Active or clinically significant Gastric Antral Vascular Ectasia (GAVE, watermelon stomach) * Unwilling or unable to discontinue disallowed disease-modifying antirheumatic drugs (DMARDs) for treatment of SSc prior to mobilization * History or presence of a 2nd autoimmune disease requiring immunosuppressive therapy that has substantial risk of immunosuppressive treatment beyond transplant with the following exceptions: * History and/or presence of Sjogren's Syndrome is allowed * Stable myositis (A history of myositis that is clinically stable as defined by lack of progressive proximal muscle weakness and a stable or decreasing creatine phosphokinase \[CPK\] \< 3 x ULN) is allowed * The presence of anti-double stranded (ds)-deoxyribonucleic acid (DNA) without clinical systemic lupus erythematosus in a patient with a diagnosis of otherwise pure SSc is allowed * Concomitant rheumatoid arthritis without extra-articular disease characteristic of rheumatoid arthritis is allowed * Active uncontrolled infection that would be a contraindication to safe use of high-dose therapy * Positive study for Hepatitis B surface antigen or Hepatitis B or C confirmed by polymerase chain reaction (PCR) * Positive serology for human immunodeficiency virus (HIV) * Absolute neutrophil count (ANC) \< 1500 cells/uL * Platelets \< 100,000 cells/uL * Hematocrit \< 27% * Hemoglobin \< 9.0 g/dL * Malignancy within the 2 years prior to entry in study, excluding adequately treated squamous cell skin cancer, basal cell carcinoma, and carcinoma in situ; treatment must have been completed (with the exception of hormonal therapy for breast cancer) with cure/remission status verified for at least 2 years prior to entry in this study * Presence of other comorbid illnesses with an estimated median life expectancy \< 5 years * Evidence of myelodysplasia (MDS); subjects with history of receiving any prior chemotherapy and/or radiotherapy for the treatment of malignant disease, history of greater than 2 months total prior cyclophosphamide for any condition (regardless of dose and route) and/or subjects presenting with abnormal peripheral blood counts require unilateral bone marrow aspiration for pathology, flow cytometry, cytogenetics, and fluorescence in situ hybridization (FISH) MDS panel (per institutional profile) to rule out MDS * Pregnancy * Inability to give voluntary informed consent * Unwilling to use contraceptive methods for at least 15 months after starting treatment * History of smoking tobacco (or other related/herbal products) in the prior 3 months * History of prior autologous hematopoietic cell transplantation

Design outcomes

Primary

MeasureTime frameDescription
EFS of Patients Undergoing TransplantAt 5 yearsEvent Free Survival (EFS) was defined as survival without meeting the protocol defined endpoint of organ injury (kidney injury requiring renal replacement dialysis for \>6 months, sustained LVEF \<30%, or sustained decline of FVC \>20%).

Secondary

MeasureTime frameDescription
The Number of Participants With Stable or Improved LVEFFrom baseline to year 5By echocardiogram, left ventricle ejection fraction (LVEF) greater than or equal to 30% for greater than or equal to 3 months
Number of Participants Requiring DialysisFrom baseline to year 5Measured by requiring chronic dialysis greater than or equal to 6 months after transplant or required kidney transplant.
The Number of Participants With Disease Progressionbaseline to year 5Chronic renal dysfunction requiring dialysis greater than or equal to 6 months post transplant or requiring kidney transplant, sustained by echo LVEJF \<30% for at least 3 months post transplant, or sustained greater than or equal to 3 months decrease of FVC on pulmonary function test (PFT) \> 20% post transplant.
The Number of Participants Who Completed ALL Health Care Utilization as Assessed by UCSD Healthcare Utilization SurveysFrom baseline to 5 yearsUCSD healthcare utilization is a self-report instrument that asks the patient about outpatient and inpatient visits, prescription and non-prescription medications, any surgeries, and major medical expenses during the last 3 months.
The Median SHAQ ScoreBaseline to year 4Scleroderma Health Assessment Questionnaire (SHAQ) is a self reported questionnaire with 8 domains including the following scales: pain, patient global assessment, vascular digital ulcers, lung involvement, and gastrointestinal involvement. The SHAQ is a quality of life measure. Each question is scored from 0 (defined as without difficulty), to 3 (defined as unable to do). Some domains are visual analog scales that are measured first and then changed to the 0-3 scale. The individual scores are combined and divided by 8. A higher score indicates worse functionality and changes in the SHAQ is measured as medium change from baseline. The reported medium change can range from -3 to 3. A negative medium change indicates a better outcome.
The Number of Participants With Improvement in Pulmonary FunctionFrom baseline to year 5Outcome measure was assessed as the number of participants who had greater than or equal to 3 months a \> 10% improvement in predicted FVC or a \> 15% improvement in DLCO.
The Number of Participants With Significant Infectious ComplicationsMobilization to Day + 100 post transplantInfections of grade 3 or above
All-cause MortalityAt 5 yearsDefined as any death.
The Number of Participants Who SurvivedBaseline to year 5
The Number of Participants Who Had Regimen-related ToxicitiesBaseline to 1 year post-transplant, grade 3 or higher adverse eventsDefined as adverse events (AEs) \>= Grade 3 and assessed by the investigator as 1 of the following: unrelated, unlikely, or possibly related to treatment; probably related to treatment; definitely related to treatment. The number of participants that experienced Grade 3 or higher adverse events is reported.
The Median Time of Initiation of Disease-modifying Antirheumatic Drugs (DMARDS) for Relapse After TransplantTransplant to year 5The time in months from transplant to starting new therapy not MMF maintenance for relapse disease.
Median Time to Treatment FailureFrom transplant (day 0) to death or disease progression to year 5Time to treatment failure is defined as death or initiation of disease modifying antirheumatic drug (DMARD).
The Number of Participants With Treatment-related MortalityBaseline to Day 90Defined by death occurring at any time after start of mobilization procedure to day +90 after autologous HCT and definitely or probably resulting from treatment given in the study.
The Number of Participants Who Completed ALL Work Productivity Survey (WPS)Baseline to year 5The first question assesses employment status, type of job for the employed (non-manual, manual or mixed manual/non-manual) and the status of those unemployed (homemaker, retired, student, unable to work due to SSc, unable to work due to non-SSc health problems, or other, i.e. volunteer). The next 3 questions apply only to employed patients and assess absenteeism (full days of work missed due to SSc), presenteeism (days with work productivity reduced by greater than or equal to 50%), and how much SSc interfered with work productivity on a scale of 0-10.
The Number of Participants With Non-progression MortalityBaseline to year 5deaths without relapse of disease

Countries

United States

Participant flow

Participants by arm

ArmCount
Treatment (HDIT Autologous PBSCT)
STEM CELL MOBILIZATION AND PREPARATION: Patients receive filgrastim SC on mobilization days 1-4 followed by apheresis until a target dose of CD34+ cells \>= 2.5 x 10\^6/kg are collected. Patients difficult to mobilize with filgrastim alone receive cyclophosphamide IV or \*plerixafor SC on mobilization days 1-2 and filgrastim SC on mobilization days 5-7. HDIT CONDITIONING: Patients receive high-dose cyclophosphamide IV over 1-2 hours on days -5 to -2 and anti-thymocyte globulin IV on days -5, -3, -1, 1, 3, and 5. TRANSPLANTATION: Patients undergo autologous PBSCT on day 0. MAINTENANCE THERAPY: Beginning 2-3 months after transplant, patients receive mycophenolate mofetil PO BID for 2 years. Anti-Thymocyte Globulin: Given IV Autologous Hematopoietic Stem Cell Transplantation: Undergo autologous PBSCT Cyclophosphamide: Given IV Filgrastim: Given SC Laboratory Biomarker Analysis: Correlative studies Mycophenolate Mofetil: Given PO Peripheral Blood Stem Cell Transplantation: Undergo autologous PBSCT Plerixafor: Given SC Quality-of-Life Assessment: Ancillary studies Questionnaire Administration: Ancillary studies
21
Total21

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyWithdrawal by Subject1

Baseline characteristics

CharacteristicTreatment (HDIT Autologous PBSCT)
Age, Categorical
<=18 years
1 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
20 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
19 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
Race (NIH/OMB)
Asian
2 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
17 Participants
Region of Enrollment
United States
21 participants
Sex: Female, Male
Female
16 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
3 / 20
other
Total, other adverse events
13 / 20
serious
Total, serious adverse events
3 / 20

Outcome results

Primary

EFS of Patients Undergoing Transplant

Event Free Survival (EFS) was defined as survival without meeting the protocol defined endpoint of organ injury (kidney injury requiring renal replacement dialysis for \>6 months, sustained LVEF \<30%, or sustained decline of FVC \>20%).

Time frame: At 5 years

Population: 20 participants had data collected for this outcome measure.

ArmMeasureValue (NUMBER)
Treatment (HDIT Autologous PBSCT)EFS of Patients Undergoing Transplant15 participants
Secondary

All-cause Mortality

Defined as any death.

Time frame: At 5 years

ArmMeasureValue (NUMBER)
Treatment (HDIT Autologous PBSCT)All-cause Mortality3 participants
Secondary

Median Time to Treatment Failure

Time to treatment failure is defined as death or initiation of disease modifying antirheumatic drug (DMARD).

Time frame: From transplant (day 0) to death or disease progression to year 5

ArmMeasureValue (MEDIAN)
Treatment (HDIT Autologous PBSCT)Median Time to Treatment Failure9 months
Secondary

Number of Participants Requiring Dialysis

Measured by requiring chronic dialysis greater than or equal to 6 months after transplant or required kidney transplant.

Time frame: From baseline to year 5

Population: 17 participants who were alive post-transplant were assessed for this outcome measure

ArmMeasureValue (NUMBER)
Treatment (HDIT Autologous PBSCT)Number of Participants Requiring Dialysis2 participants
Secondary

The Median SHAQ Score

Scleroderma Health Assessment Questionnaire (SHAQ) is a self reported questionnaire with 8 domains including the following scales: pain, patient global assessment, vascular digital ulcers, lung involvement, and gastrointestinal involvement. The SHAQ is a quality of life measure. Each question is scored from 0 (defined as without difficulty), to 3 (defined as unable to do). Some domains are visual analog scales that are measured first and then changed to the 0-3 scale. The individual scores are combined and divided by 8. A higher score indicates worse functionality and changes in the SHAQ is measured as medium change from baseline. The reported medium change can range from -3 to 3. A negative medium change indicates a better outcome.

Time frame: Baseline to year 4

Population: 17 participants who were alive post-transplant were assessed for this outcome measure

ArmMeasureValue (MEDIAN)
Treatment (HDIT Autologous PBSCT)The Median SHAQ Score-1.1 score on a scale
Secondary

The Median Time of Initiation of Disease-modifying Antirheumatic Drugs (DMARDS) for Relapse After Transplant

The time in months from transplant to starting new therapy not MMF maintenance for relapse disease.

Time frame: Transplant to year 5

ArmMeasureValue (MEDIAN)
Treatment (HDIT Autologous PBSCT)The Median Time of Initiation of Disease-modifying Antirheumatic Drugs (DMARDS) for Relapse After Transplant13 months
Secondary

The Number of Participants Who Completed ALL Health Care Utilization as Assessed by UCSD Healthcare Utilization Surveys

UCSD healthcare utilization is a self-report instrument that asks the patient about outpatient and inpatient visits, prescription and non-prescription medications, any surgeries, and major medical expenses during the last 3 months.

Time frame: From baseline to 5 years

Population: Data were not collected.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (HDIT Autologous PBSCT)The Number of Participants Who Completed ALL Health Care Utilization as Assessed by UCSD Healthcare Utilization Surveys0 Participants
Secondary

The Number of Participants Who Completed ALL Work Productivity Survey (WPS)

The first question assesses employment status, type of job for the employed (non-manual, manual or mixed manual/non-manual) and the status of those unemployed (homemaker, retired, student, unable to work due to SSc, unable to work due to non-SSc health problems, or other, i.e. volunteer). The next 3 questions apply only to employed patients and assess absenteeism (full days of work missed due to SSc), presenteeism (days with work productivity reduced by greater than or equal to 50%), and how much SSc interfered with work productivity on a scale of 0-10.

Time frame: Baseline to year 5

Population: data were not collected

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (HDIT Autologous PBSCT)The Number of Participants Who Completed ALL Work Productivity Survey (WPS)0 Participants
Secondary

The Number of Participants Who Had Regimen-related Toxicities

Defined as adverse events (AEs) \>= Grade 3 and assessed by the investigator as 1 of the following: unrelated, unlikely, or possibly related to treatment; probably related to treatment; definitely related to treatment. The number of participants that experienced Grade 3 or higher adverse events is reported.

Time frame: Baseline to 1 year post-transplant, grade 3 or higher adverse events

ArmMeasureValue (NUMBER)
Treatment (HDIT Autologous PBSCT)The Number of Participants Who Had Regimen-related Toxicities15 participants
Secondary

The Number of Participants Who Survived

Time frame: Baseline to year 5

ArmMeasureValue (NUMBER)
Treatment (HDIT Autologous PBSCT)The Number of Participants Who Survived17 participants
Secondary

The Number of Participants With Disease Progression

Chronic renal dysfunction requiring dialysis greater than or equal to 6 months post transplant or requiring kidney transplant, sustained by echo LVEJF \<30% for at least 3 months post transplant, or sustained greater than or equal to 3 months decrease of FVC on pulmonary function test (PFT) \> 20% post transplant.

Time frame: baseline to year 5

Population: 17 participants who were alive post-transplant were assessed for this outcome measure

ArmMeasureValue (NUMBER)
Treatment (HDIT Autologous PBSCT)The Number of Participants With Disease Progression5 participants
Secondary

The Number of Participants With Improvement in Pulmonary Function

Outcome measure was assessed as the number of participants who had greater than or equal to 3 months a \> 10% improvement in predicted FVC or a \> 15% improvement in DLCO.

Time frame: From baseline to year 5

Population: All 17 participants who were alive post transplant were assessed for this outcome measure

ArmMeasureGroupValue (NUMBER)
Treatment (HDIT Autologous PBSCT)The Number of Participants With Improvement in Pulmonary FunctionDLCO improvement7 participants
Treatment (HDIT Autologous PBSCT)The Number of Participants With Improvement in Pulmonary FunctionFVC improvement8 participants
Secondary

The Number of Participants With Non-progression Mortality

deaths without relapse of disease

Time frame: Baseline to year 5

ArmMeasureValue (NUMBER)
Treatment (HDIT Autologous PBSCT)The Number of Participants With Non-progression Mortality2 participants
Secondary

The Number of Participants With Significant Infectious Complications

Infections of grade 3 or above

Time frame: Mobilization to Day + 100 post transplant

ArmMeasureValue (NUMBER)
Treatment (HDIT Autologous PBSCT)The Number of Participants With Significant Infectious Complications6 participants
Secondary

The Number of Participants With Stable or Improved LVEF

By echocardiogram, left ventricle ejection fraction (LVEF) greater than or equal to 30% for greater than or equal to 3 months

Time frame: From baseline to year 5

Population: 17 participants were able to be assessed for this outcome measure

ArmMeasureValue (NUMBER)
Treatment (HDIT Autologous PBSCT)The Number of Participants With Stable or Improved LVEF14 participants
Secondary

The Number of Participants With Treatment-related Mortality

Defined by death occurring at any time after start of mobilization procedure to day +90 after autologous HCT and definitely or probably resulting from treatment given in the study.

Time frame: Baseline to Day 90

ArmMeasureValue (NUMBER)
Treatment (HDIT Autologous PBSCT)The Number of Participants With Treatment-related Mortality2 participants

Source: ClinicalTrials.gov · Data processed: Feb 24, 2026