Skip to content

Efficacy and Safety of Tisagenlecleucel in Adult Patients With Refractory or Relapsed Follicular Lymphoma

A Phase II, Single Arm, Multicenter Open Label Trial to Determine the Efficacy and Safety of Tisagenlecleucel (CTL019) in Adult Patients With Refractory or Relapsed Follicular Lymphoma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03568461
Acronym
ELARA
Enrollment
98
Registered
2018-06-26
Start date
2018-11-12
Completion date
2025-05-28
Last updated
2026-07-09

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

Conditions

Follicular Lymphoma

Keywords

Refractory or relapsed Follicular Lymphoma, Refractory, Relapsed, Follicular lymphoma, CTL019, Tisagenlecleucel, Chimeric antigen receptor, CAR19, CAR-T

Brief summary

This is a multi-center, phase II study to determine the efficacy and safety of tisagenlecleucel in adult patients with relapsed or refractory FL.

Detailed description

This single-arm, open label study had the following sequential phases: Screening, Pretreatment, Treatment and Follow-up. In the Pre-treatment phase, the patient could undergo bridging therapy (optional) and lymphodepleting (LD) chemotherapy. Treatment and Follow-up Phase included tisagenlecleucel infusion, and safety and efficacy follow-up for at least 24 months. For all the patients who received tisagenlecleucel infusion, additional survival follow-up was to be performed to determine survival status every 3 months.

Interventions

BIOLOGICALtisagenlecleucel

Tisagenlecleucel is single infusion.

Sponsors

Novartis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
No

Inclusion criteria

* Refractory or relapsed Follicular Lymphoma (Grade 1, 2, 3A) * Radiographically measurable disease at screening

Exclusion criteria

* Evidence of histologic transformation * Follicular Lymphoma Grade 3B * Prior anti-CD19 therapy * Prior gene therapy * Prior adoptive T cell therapy * Prior allogeneic hematopoietic stem cell transplant * Active CNS involvement by malignancy Other protocol-defined Inclusion/

Countries

Australia, Austria, Belgium, France, Germany, Italy, Japan, Netherlands, Norway, Spain, United Kingdom, United States

Contacts

STUDY_DIRECTORNovartis Pharmaceuticals

Novartis Pharmaceuticals

Participant flow

Participants by arm

ArmCount
CTL019
All patients who received tisagenlecleucel infusion
98
Total98

Outcome results

Primary

Complete Response Rate (CRR) Per Independent Review Committee (IRC) Assessment

Complete response rate was defined as the percentage of participants with a best overall response (BOR) of complete response (CR) recorded from tisagenlecleucel infusion until progressive disease or start of new anticancer therapy, whichever came first. CRR was determined by an independent review committee (IRC) and was based on Lugano 2014 classification response criteria. The radiological response is first obtained from CT and PET studies according to the Lugano 2014 criteria. CT response is based on anatomical measurements of index/non-index/new lesions and spleen length. The possible response outcomes are complete response (CR), partial response (PR), stable disease (SD), or progressive disease (PD). PET response based on a 5-point scale (5PS) or Deauville score. The possible outcomes for PET response are complete metabolic response (CMR), partial metabolic response (PMR), no metabolic response (NMR), or progressive metabolic disease (PMD).

Time frame: 1 year

Population: Efficacy analysis set (EAS): All the patients who received tisagenlecleucel, and had measurable disease at baseline per IRC. Non-measurable disease at baseline is defined as absence of index lesion at baseline disease evaluation (i.e. no disease at baseline).

ArmMeasureValue (NUMBER)
CTL019Complete Response Rate (CRR) Per Independent Review Committee (IRC) Assessment69.1 Percentage of participants
Secondary

AUC0-28; Cellular Kinetic Parameter of Tisagenlecleucel

The AUC from time zero to day 28, in peripheral blood (%\*days or days\*copies/ µg)

Time frame: 2 years

Secondary

AUC0-84d; Cellular Kinetic Parameter of Tisagenlecleucel

The AUC from time zero to day 84, in peripheral blood (%\*days or days\*copies/ µg)

Time frame: 2 years

Secondary

Cellular Immunogenicity

Presence of T lymphocytes activated by the tisagenlecleucel protein

Time frame: 2 years

Secondary

Cmax; Cellular Kinetic Parameter of Tisagenlecleucel

The maximum (peak) observed in peripheral blood or other body fluid drug concentration after single dose administration (% or copies/ µg)

Time frame: 2 years

Secondary

Duration of Response (DOR) Per IRC

Duration of response (DOR) applied only to participants whose best overall disease response was CR or PR. It is defined as the time from the date of first documented disease response (CR or PR) to the date of first documented progression or death due to follicular lymphoma (FL).

Time frame: 1 year

Secondary

Humoral Immunogenicity

Antibody titers specific to the tisagenlecleucel molecule prior to and following infusion.

Time frame: 2 years

Secondary

Overall Response Rate (ORR) Per IRC Assessment

Overall response rate is defined as the percentage of participants with a best overall disease response of complete response (CR) or partial response (PR). Response was evaluated per Lugano 2014 classification response criteria. The radiological response is first obtained from CT and PET studies according to the Lugano 2014 criteria. CT response is based on anatomical measurements of index/non-index/new lesions and spleen length. The possible response outcomes are complete response (CR), partial response (PR), stable disease (SD), or progressive disease (PD). PET response based on a 5-point scale (5PS) or Deauville score. The possible outcomes for PET response are complete metabolic response (CMR), partial metabolic response (PMR), no metabolic response (NMR), or progressive metabolic disease (PMD).

Time frame: 1 year

Population: Efficacy analysis set (EAS): All the patients who received tisagenlecleucel, and had measurable disease at baseline per IRC. Non-measurable disease at baseline is defined as absence of index lesion at baseline disease evaluation (i.e. no disease at baseline).

ArmMeasureValue (NUMBER)
CTL019Overall Response Rate (ORR) Per IRC Assessment86.2 Percentage or participants
Secondary

Overall Survival (OS)

Time from tisagenlecleucel infusion to death due to any cause

Time frame: 2 years

Secondary

Progression Free Survival (PFS)

Time from tisagenlecleucel infusion to first documented disease progression or death due to any cause

Time frame: 2 years

Secondary

Summary of Exposure of CD3+ Tisagenlecleucel Cells in Peripheral Blood

In vivo cellular kinetics of CD3+ tisagenlecleucel cells detected by flow cytometry

Time frame: 2 years

Secondary

Summary Scores of PRO Measured by EQ-5D-3L Quality of Life Questionnaire

Effect of tisagenlecleucel therapy on Patient reported outcomes

Time frame: 2 years

Secondary

Summary Scores of PRO Measured by FACT-Lym Quality of Life Questionnaire

Effect of tisagenlecleucel therapy on Patient reported outcomes

Time frame: 2 years

Secondary

Summary Scores of PRO Measured by SF-36v2 Quality of Life Questionnaire

Effect of tisagenlecleucel therapy on Patient reported outcomes

Time frame: 2 years

Secondary

T1/2; Cellular Kinetic Parameter of Tisagenlecleucel

The half-life associated with the elimination phase slope of a semi logarithmic concentration-time curve (days) in peripheral blood

Time frame: 2 years

Secondary

Tisagenlecleucel Transgene Concentration

Transgene concentration as detected by qPCR in target tissue

Time frame: 2 years

Secondary

Tlast; Cellular Kinetic Parameter of Tisagenlecleucel

The last observed measureable timepoint after dose administration

Time frame: 2 years

Secondary

Tmax; Cellular Kinetic Parameter of Tisagenlecleucel

The time to reach maximum (peak) peripheral blood or other body fluid drug concentration after single dose administration (days)

Time frame: 2 years

Source: ClinicalTrials.gov · Data processed: Jul 10, 2026