Recruiting
Phase 1
Phase 2

CLIC-1901

Sponsor:

Ottawa Hospital Research Institute

Code:

NCT03765177

Conditions

Acute Lymphoblastic Leukemia

Non-Hodgkin's Lymphoma

Chronic Lymphocytic Leukemia

Eligibility Criteria

Sex: All

Age: 18 - 70+

Healthy Volunteers: Not accepted

Interventions

CLIC-1901

Study Details

Brief summary:

The investigators propose an early phase study defined as a phase I/II trial assessing safety, feasibility and efficacy of CLIC-1901 autologous anti-CD19 Chimeric Antigen Receptor T cells (CAR-T) cells for participants with relapsed/refractory CD19 positive (CD19+) Acute Lymphoblastic Leukemia (ALL) and non-Hodgkin's Lymphoma (NHL). The Initial Stage of the study (n=20 participants) will focus on feasibility and safety while the Extended Stage will include all participants enrolled in the study (n=additional 80 participants for a total of 100) and will focus on efficacy and safety outcomes. In the proposed trial, we will administer our CAR-T cell product to these participants as a single infusion. Participants will undergo (a) lymphodepletion with cyclophosphamide and fludarabine, followed by (b) infusion of autologous CLIC-1901 CAR-T cells. All treatments will be delivered intravenously.

Conditions

Acute Lymphoblastic Leukemia

Non-Hodgkin's Lymphoma

Chronic Lymphocytic Leukemia

Study ID

NCT03765177

Start date

Oct 16, 2019

Status verified date

Aug, 2025

Completion date

Jun 30, 2042

Anticipated

Primary completion date

Jan, 2027

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18 - 70+

Healthy Volunteers: Not accepted

Inclusion Criteria:

1. Participant must have relapsed or refractory CD19+ disease as defined by one of the following:

a. Relapsed or refractory acute lymphoblastic leukemia or chronic lymphocytic leukemia as defined by one of the following: i. Second or greater relapse ii. Any relapse after allogeneic stem cell transplantation (SCT) iii. Chemorefractory as defined by not achieving CR after 2 cycles of a standard induction chemotherapy or one cycle of salvage therapy b. Histologically confirmed B-cell non-Hodgkin's lymphoma including but not limited to diffuse large B-cell lymphoma (DLBCL) not otherwise specified, primary mediastinal large B-cell lymphoma, or transformed follicular lymphoma, Richter's, Burkitt's or Mantle Cell lymphoma with one of the following: i. Second or greater relapse ii. Any relapse after autologous or allogeneic SCT iii. Chemorefractory as defined by not achieving CR after 2 cycles of a standard chemotherapy or one cycle of salvage therapy
2. All eligible participants must have documentation of CD19 tumour expression demonstrated in tissue biopsy, bone marrow or peripheral blood within the 3 months prior to study screening.
3. Adequate organ function
4. Participant age: 18 to 75 years.
5. Provide written informed consent

Exclusion Criteria:

An individual who meets any of the following criteria will be excluded from participation in this study:

1. Isolated extra-medullary disease.
2. Participants with concomitant genetic syndrome, such as Fanconi anemia, Kostmann syndrome, Shwachman syndrome or any other known familial bone marrow failure syndrome.
3. Prior malignancy, except carcinoma in situ of the skin or cervix treated with curative intent and with no evidence of active disease.
4. Prior treatment with any gene therapy product.
5. Participants with polymerase chain reaction (PCR) positive hepatitis B, hepatitis C, or Human Immunodeficiency Virus (tested within 8 weeks of screening), or any uncontrolled infection at screening.
6. Presence of active Graft Versus Host Disease requiring systemic therapy.
7. Participants who have undergone allogeneic SCT less than 6 months prior to CLIC-1901 cell infusion or who have undergone donor lymphocyte infusion less than 6 weeks prior to CLIC-1901 cell infusion.
8. Active Central Nervous System (CNS) involvement by malignancy, defined by CNS-3 per National Comprehensive Cancer Network guidelines.
9. History of anaphylaxis to gentamicin or its derivatives.
10. Participant has received an investigational agent within the 30 days prior to enrolment visit.
11. Pregnant or nursing women.

Study Design

Enrollment

60 participants

Anticipated

Intervention Model

Single group

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: CLIC-1901

A single Intravenous infusion of CLIC-1901 will be given.

Interventions

CLIC-1901

Participants will undergo (a) lymphodepletion with cyclophosphamide and fludarabine, followed by (b) infusion of autologous CLIC-1901 CAR-T cells. All treatments will be delivered intravenously.

Primary outcome measure

  • Proportion of participants experiencing either Grade 3 or 4 cytokine release syndrome. [ Time Frame: Within the first 28 days of CAR-T infusion ]
  • Proportion of participants with complete (CR) or partial response (PR) to CLIC-1901 [ Time Frame: 6 months after CAR-T cell infusion ]
  • Meeting enrollment targets [ Time Frame: First 20 participants within 12 months and next 80 participants within 4 years of opening the second stage. ]

Central Contacts and Locations

Central contacts

Locations

Vancouver General Hospital

Recruiting

Vancouver, British Columbia, Canada, V5Z1M9

Contacts

The Ottawa Hospital - General Campus

Recruiting

Ottawa, Ontario, Canada, K1H 8L6

Contacts

Natasha Kekre, MD, MPH, FRCP

613-737-8899nkekre@toh.on.ca

Vanessa Lopez-Ozuna, MD, PhD

613-737-8899vlopez@ohri.ca

More Information

Sponsor

Ottawa Hospital Research Institute

Last update posted

Aug 14, 2025

Last verified

Aug, 2025

Keywords

  • Chimeric Antigen Receptor T cells
  • CLIC-1901
  • anti-CD19 CAR-T cells

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-08. This information was provided to ClinicalTrials.gov by Ottawa Hospital Research Institute on 2025-08-14.