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CompletedNCT03763318EQUATEUpdated Jun 11, 2026Results posted

A Study to Evaluate the Safety, Tolerability, PK, PD, and Clinical Activity of EQ001 in Subjects With aGVHD

A Phase 1/2 interventional study of EQ001 and EQ001 Placebo in Acute-graft-versus-host Disease, aGVHD and GVHD, sponsored by Biocon Limited. Completed at 16 sites in United States. Open to participants aged 12 Years and older. Per ClinicalTrials.gov, last updated 2026-06-11.

Sponsored by Biocon Limited · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
12 Years and older
Sex
All
01

Study summary

This is a multi-center study to evaluate the safety, tolerability, PK, PD, and clinical activity of EQ001 in subjects with Acute Graft Versus Host Disease (aGVHD).

Read the detailed description

The study will enroll approximately 100 subjects in two (2) parts:

Part A is an open label study and will enroll approximately 40 evaluable subjects with aGVHD across 4 cohorts. The total number of patients will depend on the number of dose escalations necessary to enable a decision to be made on the recommended dose to take forward into Part B of the study. The planned dose escalation will start with cohort 1, where subjects will receive EQ001 administered intravenously every two weeks for a total of 5 doses.

Part B is a randomized, double-blind, placebo-controlled study and will enroll approximately 60 additional subjects, randomized in a 2:1 ratio to either active treatment EQ001 (40) or placebo (20). Subjects will receive either EQ001 or placebo administered intravenously every two weeks for a total of 5 doses.

02

Conditions studied

  • Acute-graft-versus-host Disease
  • aGVHD
  • GVHD
  • GVHD, Acute

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03

In context

Graft vs Host Disease

806 studies on the registry are indexed under Graft vs Host Disease; 138 are open to participants now.

This study's enrollment of 30 is below the median of 35 across 637 interventional studies indexed under Graft vs Host Disease.

Browse Graft vs Host Disease studies →

Lead sponsor

Biocon Limited is the lead sponsor of 13 studies on the registry; none are open to participants now.

Of its 9 completed or terminated interventional studies of FDA-regulated products, 3 (33%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
12 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Male or female subject at least 18 years of age for Part A, and at least 12 years of age for Part B.
  2. Recipients of allogeneic hematopoietic stem cell transplantation (alloHSCT) using myeloablative or non myeloablative conditioning regimens.
  3. Have a clinical diagnosis of acute GVHD requiring systemic immune suppressive therapy.
  4. Deemed by the investigator to be likely to comply with the planned procedure as required by the protocol for the duration of the study

Exclusion criteria

Exclusion Criteria:

  1. Presence of morphologic relapsed primary malignancy, treatment for relapse after alloHSCT was performed, or requirement for rapid immunosuppressive treatment withdrawal for early malignancy relapse.
  2. Evidence of graft failure based on cytopenia(s), and as determined by the investigator.
  3. Evidence of post-transplant lymphoproliferative disease.
  4. Any prior therapy for acute GVHD, except for alloHSCT prophylaxis regimens or systemically administered corticosteroids.
  5. As determined by the investigator, any medical, psychiatric, or other condition or circumstance that is likely to negatively affect: the subject's participation in this clinical study, the subject's safety, or the reliability of the study data.
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
30 participants (actual)

Study arms

  • Experimental
    EQ001 Dose Escalation (Part A)

    Open label EQ001 administered by intravenous infusion every two weeks for a total of 5 doses.

    Biological: EQ001

  • Experimental
    EQ001 (Part B)

    EQ001 administered in a blinded fashion using the optimal dose selected from Part A by intravenous infusion every two weeks for a total of 5 doses.

    Biological: EQ001

  • Placebo comparator
    EQ001 Placebo (Part B)

    Placebo administered in a blinded fashion by intravenous infusion every two weeks for a total of 5 doses.

    Biological: EQ001 Placebo

Interventions

  • BiologicalEQ001

    Itolizumab \[Bmab 600\])

    Also known as: Bmab600, Itolizumab

  • BiologicalEQ001 Placebo

    EQ001 Placebo

06

What researchers measure

Primary outcomes

  1. Number of Treatment Emergent Adverse Events

    Number of participants with treatment-related adverse events as assessed by the Common Terminology Criteria for Adverse Events (CTCAE) v5.0.

    Time frame: Study Day 85

  2. Overall Response Rate

    Overall Response Rate (ORR) is defined as the number of subjects with a partial response (PR), very good partial response (VGPR), or complete response (CR) who are alive at Day 29. Subjects must not have received new systemic therapy for aGVHD before the Day 29 Visit.

    Time frame: Study Day 29

Secondary outcomes

  1. Time to Maximum EQ001serum Concentration, Tmax

    Time to maximum EQ001 serum concentration, Tmax

    Time frame: Day 337

  2. Maximum EQ001 Serum Drug Concentration, Cmax

    Maximum EQ001 serum drug concentration, Cmax

    Time frame: Study Day 337

  3. Minimum EQ001 Serum Drug Concentration, Cmin

    Minimum EQ001 serum drug concentration prior to next dose, Cmin

    Time frame: Study Day 337

  4. Total EQ001 Exposure Across Time, AUC (From Zero to Infinity)

    Total EQ001 exposure across time, AUC (from zero to infinity)

    Time frame: Study Day 337

  5. Half Life of EQ001, t1/2

    Half life of EQ001, t1/2

    Time frame: Study Day 337

  6. Volume of Distribution of EQ001, Vd

    Volume of distribution of EQ001, Vd

    Time frame: Study Day 337

  7. Clearance, Cl

    Clearance, Cl

    Time frame: Study Day 337

  8. Inflammatory Markers

    Including but not limited to: IL-1β, IL-2, IL-6, IL-17, IL-21, IL-22, IL-23, IFN-γ, and TGF-β, C-reactive protein

    Time frame: Study Day 337

  9. CD6 Receptor Expression Levels

    CD6 receptor expression levels - percent of baseline

    Time frame: Study Day 85

07

Results

Posted Apr 18, 2025

Participant flow

Participant flow — Overall Study
MilestoneEQ001 Dose Escalation (Part A) 0.4mg/kgEQ001 Dose Escalation (Part A) 0.8mg/kgEQ001 Dose Escalation (Part A) 1.6mg/kg
Started4179
Completed373
Not completed1106

Outcome measures

PrimaryNumber of Treatment Emergent Adverse Events

Number of participants with treatment-related adverse events as assessed by the Common Terminology Criteria for Adverse Events (CTCAE) v5.0.

Time frame:
Study Day 85
Reported as:
Count of participants · Participants
Number of Treatment Emergent Adverse Events
ParticipantsEQ001 Dose Escalation (Part A) 0.4mg/kgEQ001 Dose Escalation (Part A) 0.8mg/kgEQ001 Dose Escalation (Part A) 1.6mg/kg
Number of Treatment Emergent Adverse Events4179
PrimaryOverall Response Rate

Overall Response Rate (ORR) is defined as the number of subjects with a partial response (PR), very good partial response (VGPR), or complete response (CR) who are alive at Day 29. Subjects must not have received new systemic therapy for aGVHD before the Day 29 Visit.

Time frame:
Study Day 29
Reported as:
Count of participants · Participants
Overall Response Rate
ParticipantsEQ001 Dose Escalation (Part A) 0.4mg/kgEQ001 Dose Escalation (Part A) 0.8mg/kgEQ001 Dose Escalation (Part A) 1.6mg/kg
Overall Response Rate2105
SecondaryTime to Maximum EQ001serum Concentration, Tmax

Time to maximum EQ001 serum concentration, Tmax

Time frame:
Day 337

Results for this outcome have not been posted.

SecondaryMaximum EQ001 Serum Drug Concentration, Cmax

Maximum EQ001 serum drug concentration, Cmax

Time frame:
Study Day 337

Results for this outcome have not been posted.

SecondaryMinimum EQ001 Serum Drug Concentration, Cmin

Minimum EQ001 serum drug concentration prior to next dose, Cmin

Time frame:
Study Day 337

Results for this outcome have not been posted.

SecondaryTotal EQ001 Exposure Across Time, AUC (From Zero to Infinity)

Total EQ001 exposure across time, AUC (from zero to infinity)

Time frame:
Study Day 337

Results for this outcome have not been posted.

SecondaryHalf Life of EQ001, t1/2

Half life of EQ001, t1/2

Time frame:
Study Day 337

Results for this outcome have not been posted.

SecondaryVolume of Distribution of EQ001, Vd

Volume of distribution of EQ001, Vd

Time frame:
Study Day 337

Results for this outcome have not been posted.

SecondaryClearance, Cl

Clearance, Cl

Time frame:
Study Day 337

Results for this outcome have not been posted.

SecondaryInflammatory Markers

Including but not limited to: IL-1β, IL-2, IL-6, IL-17, IL-21, IL-22, IL-23, IFN-γ, and TGF-β, C-reactive protein

Time frame:
Study Day 337

Results for this outcome have not been posted.

SecondaryCD6 Receptor Expression Levels

CD6 receptor expression levels - percent of baseline

Time frame:
Study Day 85
Reported as:
Mean · Percent of baseline
CD6 Receptor Expression Levels
Percent of baselineEQ001 Dose Escalation (Part A) 0.4mg/kgEQ001 Dose Escalation (Part A) 0.8mg/kgEq001 Dose Escalation (Part A) 1.6mg/kg
CD6 Receptor Expression Levels81.0 ± 17.7823.7 ± 15.7633.0 ± 19.25

Adverse events

Collected over Adverse Events (AEs) were collected from signing of the informed consent form through the long-term follow-up visit at Day 337.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
EQ001 Dose Escalation (Part A) 0.4mg/kg1/4 (25%)2/4 (50%)4/4 (100%)
EQ001 Dose Escalation (Part A) 0.8mg/kg7/17 (41.2%)9/17 (52.9%)17/17 (100%)
EQ001 Dose Escalation (Part A) 1.6mg/kg6/9 (66.7%)8/9 (88.9%)9/9 (100%)
Most frequent serious events
Showing 10 of 34
Most frequent serious events
EventEQ001 Dose Escalation (Part A) 0.4mg/kgEQ001 Dose Escalation (Part A) 0.8mg/kgEQ001 Dose Escalation (Part A) 1.6mg/kg
Adenovirus infectionInfections and infestations0/40/178/9
SepsisInfections and infestations0/49/172/9
Skin infectionInfections and infestations1/40/170/9
Graft versus host disease in gastrointestinal tractImmune system disorders1/40/171/9
PyrexiaGeneral disorders1/40/170/9
Graft versus host diseaseImmune system disorders0/43/170/9
Cardiac arrestCardiac disorders0/42/170/9
Arthritis bacterialInfections and infestations0/40/171/9
Klebsiella sepsisInfections and infestations0/40/171/9
NocardiosisInfections and infestations0/40/171/9
Most frequent other events
Showing 10 of 224
Most frequent other events
EventEQ001 Dose Escalation (Part A) 0.4mg/kgEQ001 Dose Escalation (Part A) 0.8mg/kgEQ001 Dose Escalation (Part A) 1.6mg/kg
Oedema peripheralGeneral disorders2/49/176/9
HypokalaemiaMetabolism and nutrition disorders0/43/175/9
Platelet count decreasedInvestigations1/49/173/9
DiarrhoeaGastrointestinal disorders2/44/173/9
HypomagnesaemiaMetabolism and nutrition disorders1/43/174/9
AnaemiaBlood and lymphatic system disorders0/45/174/9
FatigueGeneral disorders1/46/173/9
HyperglycaemiaMetabolism and nutrition disorders0/46/170/9
Lymphocyte count decreasedInvestigations0/42/173/9
Urinary tract infectionInfections and infestations0/41/173/9

Baseline characteristics

Age, Continuous
Age, Continuous(years)EQ001 Dose Escalation (Part A) 0.4mg/kgEQ001 Dose Escalation (Part A) 0.8mg/kgEQ001 Dose Escalation (Part A) 1.6mg/kgTotal
Mean44.3 ± 18.0360.1 ± 10.8654.6 ± 12.9856.3 ± 13.22
Sex: Female, Male
Sex: Female, Male(Participants)EQ001 Dose Escalation (Part A) 0.4mg/kgEQ001 Dose Escalation (Part A) 0.8mg/kgEQ001 Dose Escalation (Part A) 1.6mg/kgTotal
Female06410
Male411520
Race (NIH/OMB)
Race (NIH/OMB)(Participants)EQ001 Dose Escalation (Part A) 0.4mg/kgEQ001 Dose Escalation (Part A) 0.8mg/kgEQ001 Dose Escalation (Part A) 1.6mg/kgTotal
American Indian or Alaska Native0000
Asian0000
Native Hawaiian or Other Pacific Islander0000
Black or African American0303
White414826
More than one race0000
Unknown or Not Reported0011
08

Study locations

16 sites
  • City of Hope Comprehensive Cancer Center
    Duarte, California 91010, United States
  • University of Florida Health Shands Hospital
    Gainesville, Florida 32610, United States
  • University of Miami - Miller School of Medicine
    Miami, Florida 33136, United States
  • H. Lee Moffitt Cancer Center & Research Institute
    Tampa, Florida 33612, United States
  • Emory University Hospital
    Atlanta, Georgia 30322, United States
  • Dana-Farber Cancer Institute
    Boston, Massachusetts 02215, United States
  • University of Michigan - C.S. Mott Children's Hospital
    Ann Arbor, Michigan 48109, United States
  • Washington University and Barnes Jewish Heart & Vascular Center
    St Louis, Missouri 63110, United States
  • Roswell Park Cancer Institute
    Buffalo, New York 14263, United States
  • University of North Carolina Lineberger Comprehensive Cancer Center
    Chapel Hill, North Carolina 27599, United States
  • Oregon Health & Science University
    Portland, Oregon 97239, United States
  • University of Pennsylvania, Abramson Cancer Center
    Philadelphia, Pennsylvania 19104, United States
  • University of Pittsburgh Cancer Institute
    Pittsburgh, Pennsylvania 15232, United States
  • TriStar Centennial Medical Center (SCRI)
    Nashville, Tennessee 53719, United States
  • Intermountain Healthcare
    Salt Lake City, Utah 84103, United States
  • Fred Hutchinson Cancer Research Center
    Seattle, Washington 98109-4433, United States
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References and documents

Publications

  • Rambaldi B, Kim HT, Arihara Y, Asano T, Reynolds C, Manter M, Halpern M, Weber A, Koreth J, Cutler C, Gooptu M, Nikiforow S, Ho VT, Antin JH, Romee R, Ampudia J, Ng C, Connelly S, Soiffer RJ, Ritz J. Phenotypic and functional characterization of the CD6-ALCAM T-cell co-stimulatory pathway after allogeneic cell transplantation. Haematologica. 2022 Nov 1;107(11):2617-2629. doi: 10.3324/haematol.2021.280444. PubMed 35484649 ↗

Related links

Study documents

  • Study protocol · Feb 24, 2021
  • Statistical analysis plan · Feb 15, 2022

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 11, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03763318
Lead sponsor
Biocon Limited
Responsible party
Sponsor
First posted
Dec 4, 2018
Start date
Jul 15, 2019
Primary completion
Nov 21, 2022
Completion
Nov 21, 2022
Results posted
Apr 18, 2025
Last update
Jun 11, 2026

Study contacts

Joel Rothman
study director · Equillium

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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