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Avelumab in Relapsed and Refractory Peripheral T-cell Lymphoma

A Phase 2a Trial of Avelumab, an Anti-PDL1 Antibody, in Relapsed and Refractory Peripheral T-cell Lymphoma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03046953
Acronym
AVAIL-T
Enrollment
35
Registered
2017-02-08
Start date
2017-12-08
Completion date
2021-07-27
Last updated
2024-07-16

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

Conditions

T-Cell Lymphoma Refractory, T-Cell Lymphoma Relapsed

Keywords

Lymphoma

Brief summary

The AVAIL-T trial is a trial to find out how effective avelumab is at treating patients with primary T-cell lymphoma that is refractory to or has relapsed following initial treatment.

Detailed description

The AVAIL-T trial is designed to find out how effective avelumab is at treating patients with primary T-cell lymphoma that is refractory to or has relapsed following initial treatment. Up to 36 people will be taking part in the AVAIL-T trial at hospitals across the United Kingdom. All patients on the trial will be recruited over 2 years and receive up to 8 cycles of avelumab treatment. Avelumab is an anti-PDL1 (programmed cell death receptor ligand 1) antibody that will be given as an infusion once every 2 weeks in cycles lasting 28 days. The trial will be looking at the response to avelumab, by measuring the change in the tumour size using CT scans, and seeing how long that response is maintained. The trial will also look at toxicity, overall survival, and progression free survival. In addition we will analyse blood samples and samples of the cancer to understand better how the cancer behaves. This may guide the investigators in developing better treatments in the future.

Interventions

DRUGAvelumab

anti-PDL1 antibody

Sponsors

Bloodwise
CollaboratorOTHER
Pfizer
CollaboratorINDUSTRY
University of Birmingham
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Single Arm trial with bayesian design

Eligibility

Sex/Gender
ALL
Age
16 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male or female patients aged ≥ 16 years * Life expectancy \> 12 weeks * ECOG (eastern oncology cooperative group) performance status ≤ 2 * Relapsed or refractory\* peripheral T-cell lymphoma including the following histologies: peripheral T-cell lymphoma not otherwise specified (PTCL NOS) , angioimmunoblastic T-cell lymphoma (AITL), anaplastic large cell lymphoma (ALCL), enteropathy associated T-cell lymphoma (EATL), extranodal NK (natural killer)/T- cell lymphoma (ENKL), transformed mycosis fungoides (LCT MF), hepatosplenic T-cell lymphoma (HSTCL) \* For all relapsed patients, relapse must be confirmed by tissue biopsy (or bone marrow trephine if no other tissue available). For refractory patients, a biopsy must have been obtained within the last 3 months * Failed at least 1 prior therapy (but no upper limit of prior regimens) * Adequate haematological function defined by at registration: * absolute neutrophil count (ANC) ≥ 1.0 × 109/L, (unsupported) * platelet count ≥ 75 × 109/L, (unsupported) * haemoglobin ≥ 9 g/dL (may have been transfused) * Adequate hepatic function defined by: * total bilirubin level ≤ 1.5 × the upper limit of normal (ULN) range * AST (aspartate aminotransferase) or ALT (alanine aminotransferase) levels ≤ 2.5 × ULN for all patients, or AST and ALT levels ≤ 5 x ULN (for subjects with documented metastatic disease to the liver) * Adequate renal function defined by an estimated creatinine clearance ≥ 30 mL/min according to the Cockcroft-Gault formula (or local institutional standard method) * CT measurable disease with at least 1 lesion having short axis \> 1.5cm or splenomegaly \> 14cm in cranio-caudal length attributable to relapsed/non responding lymphoma * Negative serum pregnancy test at screening for women of childbearing potential. * Highly effective contraception for both male and female patients if the risk of conception exists. (Note: women of childbearing potential and men able to father a child must agree to use 2 highly effective contraception, defined as methods with a failure rate of less than 1 % per year. Highly effective contraception is required from consent, throughout and for at least 60 days after avelumab treatment. * Ability to give informed consent

Exclusion criteria

Patients are not eligible for the trial if they fulfill any of the following

Design outcomes

Primary

MeasureTime frameDescription
Best Overall Response Rate During the First 8 Cycles of Treatment8 cycles (224 days)Best overall response rate (Completed response \[CR\] + partial remission \[PR\]) during the first 8 cycles of treatment will be assessed using contrast-enhanced CT scans of the neck, chest, abdomen and pelvis, using the Revised Response Criteria for Malignant Lymphoma. In this study CR = complete disappearance of all detectable clinical evidence of disease, so involved lymph nodes had regressed on CT scan to normal size. PR = al least a 50% decrease in size of the involved lymph nodes measured on CT scans.

Secondary

MeasureTime frameDescription
Toxicity- Proportion of PatientsDuring treatment of 8 cycles (224 days)Toxicity assessed using CTCAE v4.0 will be defined as the proportion of patients who experience one or more grade 3 or 4 adverse event or serious adverse event of any grade
Maximum Percentage Change in Sum of Product of DiametersDuring trial treatment of 8 cycles (224 days), comparing baseline with cycles 3, 6 and 8Maximum percentage change in the sum of the product of diameters (SPD) of target tumour masses assessed by contrast-enhanced CT scans of the neck, chest, abdomen and pelvis, using the Revised Response Criteria for Malignant Lymphoma.
Toxicity- Number of PatientsDuring treatment of 8 cycles (224 days)Toxicity assessed using CTCAE v4.0 will be defined as the number of patients who experience one or more grade 3 or 4 adverse event or serious adverse event of any grade
Progression Free Survival2 yearsProgression free survival is defined as the time from date of registration to the date of disease progression or date of death from any cause. Patients not reaching progression or death at the time of analysis will be censored at the last date they were known to be alive and progression free.
Overall SurvivalDeaths were collected up to 2 yearsOverall survival time is defined as the time from date of registration to the date of death from any cause. Patients discontinuing the study, lost to follow-up or still alive at the end of the study will be censored at the date of last follow-up.
Duration of Response2 yearsDuration of response is defined as the time from first documented response (CR or PR) until relapse/progression, as determined by the Revised Response Criteria, or death. Patients who are relapse/progression free and alive at time of final analysis will be censored at date last seen.

Countries

United Kingdom

Participant flow

Recruitment details

Patient were recruited from November 14, 2017 to November 18, 2019 at 14 UK (United Kingdom) hospitals by clinician referral. The first patient was recruited on December 8, 2017, and the final patient recruited on November 18, 2019.

Pre-assignment details

Of 35 enrolled patients, only 32 started treatment. Of the 3 patients who did not start treatment, one died, one relapsed and one was found to be ineligible post registration.

Participants by arm

ArmCount
Avelumab
Patients received Avelumab 10mg/kg by IV infusion once every 2 weeks. A maximum of 8 cycles, each cycle is 28 days. Avelumab: anti-PDL1 antibody
35
Total35

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyDeath2
Overall StudyRelapse/progressive disease21
Overall StudyWithdrawal by Subject3

Baseline characteristics

CharacteristicAvelumab
Age, Continuous62.1 years
STANDARD_DEVIATION 11.7
BMI27.0 kg/m2
STANDARD_DEVIATION 5.1
Diastolic blood pressure74.2 mmHg
STANDARD_DEVIATION 9.8
ECOG performance
0
17 Participants
ECOG performance
1
13 Participants
ECOG performance
2
4 Participants
ECOG performance
Missing Data
1 Participants
Height1.7 metres
STANDARD_DEVIATION 0.1
Histology
Anaplastic large cell lymphoma
1 Participants
Histology
Angioimmunoblastic T-cell lymphoma
11 Participants
Histology
Extranodal NK/T-cell lymphoma
4 Participants
Histology
Missing data
1 Participants
Histology
Peripheral T-cell lymphoma not otherwise specified
17 Participants
Histology
Transformed mycosis fungoides
1 Participants
Prior therapies3.0 years
Pulse83.7 bpm
STANDARD_DEVIATION 21.7
Race and Ethnicity Not Collected— Participants
Sex: Female, Male
Female
6 Participants
Sex: Female, Male
Male
29 Participants
Systolic blood pressure127.0 mmHg
STANDARD_DEVIATION 19.7
Weight81.7 kg
STANDARD_DEVIATION 17.3

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
24 / 32
other
Total, other adverse events
31 / 32
serious
Total, serious adverse events
18 / 32

Outcome results

Primary

Best Overall Response Rate During the First 8 Cycles of Treatment

Best overall response rate (Completed response \[CR\] + partial remission \[PR\]) during the first 8 cycles of treatment will be assessed using contrast-enhanced CT scans of the neck, chest, abdomen and pelvis, using the Revised Response Criteria for Malignant Lymphoma. In this study CR = complete disappearance of all detectable clinical evidence of disease, so involved lymph nodes had regressed on CT scan to normal size. PR = al least a 50% decrease in size of the involved lymph nodes measured on CT scans.

Time frame: 8 cycles (224 days)

Population: The per-protocol population was used ,defined as all patients recruited to the trial who started treatment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
AvelumabBest Overall Response Rate During the First 8 Cycles of Treatment5 Participants
Secondary

Duration of Response

Duration of response is defined as the time from first documented response (CR or PR) until relapse/progression, as determined by the Revised Response Criteria, or death. Patients who are relapse/progression free and alive at time of final analysis will be censored at date last seen.

Time frame: 2 years

Population: Patients who responded

ArmMeasureValue (MEDIAN)
AvelumabDuration of Response13.3 months
Secondary

Maximum Percentage Change in Sum of Product of Diameters

Maximum percentage change in the sum of the product of diameters (SPD) of target tumour masses assessed by contrast-enhanced CT scans of the neck, chest, abdomen and pelvis, using the Revised Response Criteria for Malignant Lymphoma.

Time frame: During trial treatment of 8 cycles (224 days), comparing baseline with cycles 3, 6 and 8

Population: 13 of the 32 patients who started treatment had available CT scans containing the target lesions at cycles 3, 6 or 8 for comparison with baseline, and these patients were included in this analysis

ArmMeasureValue (MEDIAN)
AvelumabMaximum Percentage Change in Sum of Product of Diameters-4.3 percentage change
Secondary

Overall Survival

Overall survival time is defined as the time from date of registration to the date of death from any cause. Patients discontinuing the study, lost to follow-up or still alive at the end of the study will be censored at the date of last follow-up.

Time frame: Deaths were collected up to 2 years

Population: Per-protocol population

ArmMeasureValue (MEDIAN)
AvelumabOverall Survival10.41 months
Secondary

Progression Free Survival

Progression free survival is defined as the time from date of registration to the date of disease progression or date of death from any cause. Patients not reaching progression or death at the time of analysis will be censored at the last date they were known to be alive and progression free.

Time frame: 2 years

Population: Per-protocol population defined as all patients recruited to the trial who started treatment

ArmMeasureValue (MEDIAN)
AvelumabProgression Free Survival2.86 months
Secondary

Toxicity- Number of Patients

Toxicity assessed using CTCAE v4.0 will be defined as the number of patients who experience one or more grade 3 or 4 adverse event or serious adverse event of any grade

Time frame: During treatment of 8 cycles (224 days)

Population: The number of patients in the per-protocol population who experience one or more grade 3 or 4 adverse event or serious adverse event of any grade

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
AvelumabToxicity- Number of Patients21 Participants
Secondary

Toxicity- Proportion of Patients

Toxicity assessed using CTCAE v4.0 will be defined as the proportion of patients who experience one or more grade 3 or 4 adverse event or serious adverse event of any grade

Time frame: During treatment of 8 cycles (224 days)

Population: The proportion of patients in the per-protocol population who experience one or more grade 3 or 4 adverse event or serious adverse event of any grade

ArmMeasureValue (NUMBER)
AvelumabToxicity- Proportion of Patients0.656 proportion of patients

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026