A Study to Evaluate the Effect of GRF6021 on Postoperative Recovery Following Primary Hip or Knee Arthroplasty
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ClinicalTrials.gov Identifier: NCT03981419 |
Recruitment Status :
Completed
First Posted : June 10, 2019
Last Update Posted : May 21, 2021
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Postoperative Recovery | Biological: GRF6021 Other: Placebo | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 38 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Triple (Participant, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Randomized, Placebo-Controlled, Double-Blind Pilot Study to Evaluate the Effect of GRF6021 on Intracellular Signaling Cascades in Blood Leukocytes and Postoperative Recovery Following Primary Hip or Knee Arthroplasty |
Actual Study Start Date : | July 12, 2019 |
Actual Primary Completion Date : | January 23, 2021 |
Actual Study Completion Date : | March 4, 2021 |

Arm | Intervention/treatment |
---|---|
Experimental: GRF6021
Subjects will receive GRF6021 per the following schedule:
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Biological: GRF6021
for IV infusion |
Placebo Comparator: Placebo
Subjects will receive Placebo per the following schedule:
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Other: Placebo
for IV infusion |
- Intracellular signaling cascades in blood leukocytes [ Time Frame: Baseline to Day 3 ]Effect of GRF6021 on intracellular signaling cascades in blood leukocytes as determined by CyTOF.
- 3-Minute Diagnostic Interview for Confusion Assessment Method (3D-CAM) [ Time Frame: Baseline to Day 3 ]Change from baseline in 3D-CAM. The 3D-CAM is a verbal assessment tool used to test patients for delirium. Each item in the instrument directly informs acute onset of mental status change or fluctuating course of cognition, inattention, disorganized thinking, and altered level of consciousness.
- Surgery Recovery Scale (SRS) [ Time Frame: Baseline to 6 weeks ]Time to 50% recovery of the baseline value in the SRS. The SRS tool assesses functional recovery following major surgery. Impacts on daily activities are scored from 1 to 5 or 6 (1= not at all).
- Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) [Pain] [ Time Frame: Baseline to 6 weeks ]
Time to a score of < 12/40 on a subset of questions from the WOMAC, Pain Subscale. The WOMAC assesses pain, stiffness, and physical function in patients with knee and/or hip osteoarthritis.
This is an 11-point scale (0-10). The range for the Pain subscale is 0-40 . The subscales are used independently and not summed. Higher scores = worse (Higher pain score = more pain; higher function score = more impairment)
- Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) [Function] [ Time Frame: Baseline to 6 weeks ]
Time to a score of < 18/60 on a subset of questions from the WOMAC, Physical Function Subscale. The WOMAC assesses pain, stiffness, and physical function in patients with knee and/or hip osteoarthritis.
This is an 11-point scale (0-10). The range for the Function subscale is 0-60 . The subscales are used independently and not summed. Higher scores = worse (Higher pain score = more pain; higher function score = more impairment)
- Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) [Total] [ Time Frame: Baseline to 6 weeks ]
The WOMAC total is a sum of scores from the Pain, Stiffness and Function Subscales. The WOMAC assesses pain, stiffness, and physical function in patients with knee and/or hip osteoarthritis.
This is an 11-point scale (0-10). The range for the combined subscales is 0-240. (Higher total score = more pain, stiffness, and impairment)
- Short Form Health Survey 36 (SF-36) [ Time Frame: Baseline to 6 weeks ]
Change from baseline in the SF-36. The SF-36 is a health-related quality-of-life measure, using 8 sub-scale scores and 2 summary scores for mental and physical health.
Range: 0-100 Lower = worse Eight subscales
- vitality
- physical functioning
- bodily pain
- general health perceptions
- physical role functioning
- emotional role functioning
- social role functioning
- mental health
Subscales scores are converted to a z score and given equal weight; max total score is 100
- Beck Depression Inventory-II (BDI-II) [ Time Frame: Baseline to 6 weeks ]
Change from baseline in the BDI-II. The BDI-II assesses mood in a 21-item self-administered survey. It is scored on a scale of 0-63 in a list of four statements arranged in increasing severity about a particular symptom of depression.
Range 0-63 Higher = worse Subscales N/A
- Opioid Analgesic Consumption [ Time Frame: Baseline to 6 weeks ]Opioid analgesic consumption during hospital stay and after discharge to end of study.
- Discharge [ Time Frame: Baseline to 6 weeks ]Time to discharge.
- Perioperative outcomes [Blood] [ Time Frame: Baseline to Day 2 ]Intraoperative blood products (mL)
- Perioperative outcomes [Fluids] [ Time Frame: Baseline to Day 2 ]Intraoperative fluids (mL)
- Functional status using the ActiGraph [ Time Frame: Baseline to 6 weeks ]Change in functional status using the ActiGraph wearable device providing measurements for physical activity, mobility, and sleep.
- Vital sign measurements [BP] [ Time Frame: Baseline to Day 3 ]
Change from baseline in vital sign measurements:
Blood pressure (mm Hg)
- Vital sign measurements [Heart] [ Time Frame: Baseline to Day 3 ]
Change from baseline in vital sign measurements:
Heart rate (bpm)
- Electrocardiogram (ECG) [Rate] [ Time Frame: Baseline to Day 3 ]
Change from baseline in ECG:
Rate (bpm)
- Electrocardiogram (ECG) [Rhythm] [ Time Frame: Baseline to Day 3 ]
Change from baseline in ECG:
Rhythm (sinus or non-sinus)
- Electrocardiogram (ECG) [QT] [ Time Frame: Baseline to Day 3 ]
Change from baseline in ECG:
QT interval (ms)

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 50 Years to 85 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Men and women 50-85 years of age scheduled to undergo primary total hip or knee replacement surgery.
- Estimated glomerular filtration rate ≥ 45 mL/min/1.73 m2 .
Exclusion Criteria:
- Blood coagulation disorders.
- Subjects who started chronic anticoagulant therapy (warfarin, heparin, low-molecular weight heparin, or Factor Xa inhibitors) in the last 6 months
- Hypercoagulable state.
- Prior hypersensitivity to any human blood product including plasma.
- Treatment with any human blood product, including transfusions and IV immunoglobulin, during the 6 months prior to screening.
- History of immunoglobulin A or haptoglobin deficiency.
- Major surgery, trauma or injury in the last 3 months or minor surgery in the last 1 month.
- Heart disease or congestive heart failure in the 6 months prior to dosing.
- Poorly controlled hypertension.
- Severe anemia.
- Functional impairment of major joint or lower extremity other than joint undergoing surgery.

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): NCT03981419
United States, California | |
Stanford University Medical Center | |
Palo Alto, California, United States, 94305 |
Study Director: | Alkahest Medical Monitor | Alkahest, Inc. |
Responsible Party: | Alkahest, Inc. |
ClinicalTrials.gov Identifier: | NCT03981419 |
Other Study ID Numbers: |
AKST6021-211 |
First Posted: | June 10, 2019 Key Record Dates |
Last Update Posted: | May 21, 2021 |
Last Verified: | May 2021 |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Total hip replacement Total knee replacement |