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NCT04259450

Study to Assess AFM24 in Advanced Solid Cancers

Terminated Phase 1, PHASE2 Results posted Last updated 17 July 2025
What this trial tests

Phase 1, PHASE2 trial testing 14 mg AFM24 in Advanced Solid Tumor in 85 participants. Terminated before completion.

Timeline
7 April 2020
Primary endpoint
12 July 2023
24 June 2024

Quick facts

Lead sponsorAffimed GmbH
PhasePhase 1, PHASE2
StatusTerminated
Study typeINTERVENTIONAL
Allocationnon randomized
Designparallel
Maskingnone
Primary purposetreatment
Enrollment85
Start date7 April 2020
Primary completion12 July 2023
Estimated completion24 June 2024
Sites13 locations across United Kingdom, Germany, South Korea, United States, Spain

Drugs / interventions tested

Conditions studied

Sponsor

Affimed GmbH — full company profile →

Who can join

18 and older, any sex, with Advanced Solid Tumor. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Phase 1: The Number of Subjects With Dose Limiting Toxicities (DLTs) During Cycle 1 Primary · During Cycle 1 (up to 28 days)

The number of patients with dose limiting toxicities (DLTs) in the first cycle, as assessed by the National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE) v5.0. DLT is defined as an adverse event (AE) or abnormal laboratory value assessed as unrelated to underlying disease, disease progression, inter-current illness, or concomitant medications, that occurs ≤28 days following the first dose of AFM24 (Cycle 1).

GroupValue95% CI
Phase 1- 14 mg Cohort 10
Phase 1- 40 mg Cohort 21
Phase 1- 80 mg Cohort 30
Phase 1- 160 mg Cohort 40
Phase 1- 320 mg Cohort 50
Phase 1- 480 mg Cohort 60
Phase 1- 720 mg Cohort 70
Phase 2a: Overall Response Rate (Complete Response [CR] + Partial Response [PR]) Primary · Up to approximately 16 weeks.

Overall response as defined by achieving confirmed CR and/or PR assessed by Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. Partial or complete response needs to be confirmed with repeated assessment at least 4 weeks after the initial assessment.

GroupValue95% CI
Phase 2- CRC 480 mg Cohort A0
Phase 2- ccRCC 480 mg Cohort B0
Phase 2- NSCLC 480 mg Cohort C2
Phase 1: The Number of Subjects With Treatment-emergent Adverse Events (TEAEs) Secondary · From the start of first infusion till the last infusion + 30 days, up to approximately 43 weeks.

Adverse Events (AEs) will be summarized with patient counts by Medical Dictionary for Regulatory Activities (MedDRA) System Organ Classes (SOCs) and Preferred Terms (PTs).

GroupValue95% CI
Phase 1- 14 mg Cohort 12
Phase 1- 40 mg Cohort 26
Phase 1- 80 mg Cohort 34
Phase 1- 160 mg Cohort 45
Phase 1- 320 mg Cohort 56
Phase 1- 480 mg Cohort 66
Phase 1- 720 mg Cohort 76
Phase 1: The Number of Subjects With Serious Adverse Events (SAEs) Secondary · From the start of first infusion till the last infusion + 30 days, up to approximately 43 weeks.

Serious adverse Events (SAEs) will be summarized with patient counts by Medical Dictionary for Regulatory Activities (MedDRA) System Organ Classes (SOCs) and Preferred Terms (PTs).

GroupValue95% CI
Phase 1- 14 mg Cohort 12
Phase 1- 40 mg Cohort 23
Phase 1- 80 mg Cohort 32
Phase 1- 160 mg Cohort 42
Phase 1- 320 mg Cohort 54
Phase 1- 480 mg Cohort 63
Phase 1- 720 mg Cohort 72
Phase 1: Area Under the Concentration-time Curve From Time 0 to Time Tau (7 Days) of AFM24 in Plasma Secondary · Pre-dose (2 hours maximum) and 15, 30, 45 min after start of infusion (SOI) and end of infusion (EOI) and 1, 4, 18, 24, 48, 144 hours after EOI on Cycle 1 Day 22.

Area under the concentration-time curve from time 0 to time tau (7 days) of AFM24 in plasma (AUC0-168)

GroupValue95% CI
Phase 1- 14 mg Cohort 153400± 61700
Phase 1- 40 mg Cohort 2549000± 254000
Phase 1- 80 mg Cohort 31290000± 395000
Phase 1- 160 mg Cohort 44940000± 1370000
Phase 1- 320 mg Cohort 518100000± 6120000
Phase 1- 480 mg Cohort 628700000± 7620000
Phase 1- 720 mg Cohort 740200000± 12000000
Phase 1: Maximum Plasma Concentration (Cmax) of AFM24 Secondary · Pre-dose (2 hours maximum) and 15, 30, 45 min after start of infusion (SOI) and end of infusion (EOI) and 1, 4, 18, 24, 48, 144 hours after EOI on Cycle 1 Day 1 and on pre-dose (2 hours maximum) Cycle 1 Day 8.

Maximum measured concentration (Cmax) of AFM24 in plasma

GroupValue95% CI
Phase 1- 14 mg Cohort 13290± 2860
Phase 1- 40 mg Cohort 213200± 3100
Phase 1- 80 mg Cohort 329200± 6620
Phase 1- 160 mg Cohort 460900± 17600
Phase 1- 320 mg Cohort 5204000± 55600
Phase 1- 480 mg Cohort 6298000± 71100
Phase 1- 720 mg Cohort 7354000± 104000
Phase 1: Time of Maximum Observed Concentration (Tmax) of AFM24 Secondary · Pre-dose (2 hours maximum) and 15, 30, 45 min after start of infusion (SOI) and end of infusion (EOI) and 1, 4, 18, 24, 48, 144 hours after EOI on Cycle 1 Day 22.

First time to maximum observed concentration of AFM24 sampled during a dosing interval.

GroupValue95% CI
Phase 1- 14 mg Cohort 11.84± 1.19
Phase 1- 40 mg Cohort 23.43± 1.97
Phase 1- 80 mg Cohort 35.63± 1.71
Phase 1- 160 mg Cohort 45.64± 1.30
Phase 1- 320 mg Cohort 57.18± 0.564
Phase 1- 480 mg Cohort 67.52± 1.38
Phase 1- 720 mg Cohort 75.21± 0.280
Phase 1: Minimum Plasma Concentration (Cmin) of AFM24 Secondary · Pre-dose (2 hours maximum) and 15, 30, 45 min after start of infusion (SOI) and end of infusion (EOI) and 1, 4, 18, 24, 48, 144 hours after EOI on Cycle 1 Day 1 and on pre-dose (2 hours maximum) Cycle 1 Day 22.

Minimum measured concentration (Cmin) of AFM24 in plasma

GroupValue95% CI
Phase 1- 14 mg Cohort 132.7± 46.2
Phase 1- 40 mg Cohort 2311± 281
Phase 1- 80 mg Cohort 3810± 482
Phase 1- 160 mg Cohort 412000± 3540
Phase 1- 320 mg Cohort 573800± 40600
Phase 1- 480 mg Cohort 6117000± 49600
Phase 1- 720 mg Cohort 7233000± 113000
Phase 1: The Number of Subjects Who Developed Anti-drug Antibodies (ADAs) and Neutralizing ADAs During Treatment With AFM24 Secondary · Pre-dose cycle 1 Day 1 and end of treatment, up to approximately 39 weeks.

The number of subjects who developed anti-drug antibodies (ADAs) at any time during the study.

GroupValue95% CI
Phase 1- 14 mg Cohort 11
Phase 1- 40 mg Cohort 24
Phase 1- 80 mg Cohort 32
Phase 1- 160 mg Cohort 43
Phase 1- 320 mg Cohort 51
Phase 1- 480 mg Cohort 60
Phase 1- 720 mg Cohort 71
Phase 1: Overall Response Rate (Complete Response (CR) + Partial Response (PR)) Secondary · From the start of first infusion till the last infusion + 30 days, up to approximately 43 weeks.

Overall response as defined by achieving confirmed CR and/or PR assessed by Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. Partial or complete response needs to be confirmed with repeated assessment at least 4 weeks after the initial assessment by local reader.

GroupValue95% CI
Phase 1- 14 mg Cohort 10
Phase 1- 40 mg Cohort 20
Phase 1- 80 mg Cohort 30
Phase 1- 160 mg Cohort 40
Phase 1- 320 mg Cohort 50
Phase 1- 480 mg Cohort 60
Phase 1- 720 mg Cohort 70
Phase 1: Disease Control Rate (Complete Response (CR) + Partial Response (PR) +Stable Disease (SD)) Secondary · From the start of first infusion till the last infusion + 30 days, up to approximately 43 weeks.

Disease control as defined by achieving CR and/or PR and/or SD assessed by Response Evaluation Criteria in Solid Tumors (RECIST) v1.1.

GroupValue95% CI
Phase 1- 14 mg Cohort 10
Phase 1- 40 mg Cohort 21
Phase 1- 80 mg Cohort 30
Phase 1- 160 mg Cohort 40
Phase 1- 320 mg Cohort 50
Phase 1- 480 mg Cohort 62
Phase 1- 720 mg Cohort 71
Phase 2a: The Number of Subjects With Treatment-emergent Adverse Events (TEAEs) Secondary · From the start of first infusion till the last infusion + 30 days, up to approximately 105 weeks.

Adverse Events (AEs) will be summarized with patient counts by Medical Dictionary for Regulatory Activities (MedDRA) System Organ Classes (SOCs) and Preferred Terms (PTs).

GroupValue95% CI
Phase 2- CRC 480 mg Cohort A19
Phase 2- ccRCC 480 mg Cohort B8
Phase 2- NSCLC 480 mg Cohort C23

Adverse events — posted to ClinicalTrials.gov

Time frame: From the start of first infusion till the last infusion + 30 days, up to approximately 105 weeks. Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Phase 1- 14 mg Cohort 1
Serious: 2/2 (100%)
Deaths: 1/2
Phase 1- 40 mg Cohort 2
Serious: 3/6 (50%)
Deaths: 6/6
Phase 1- 80 mg Cohort 3
Serious: 2/4 (50%)
Deaths: 4/4
Phase 1- 160 mg Cohort 4
Serious: 2/5 (40%)
Deaths: 3/5
Phase 1- 320 mg Cohort 5
Serious: 4/6 (67%)
Deaths: 4/6
Phase 1- 480 mg Cohort 6
Serious: 3/6 (50%)
Deaths: 4/6
Phase 1- 720 mg Cohort 7
Serious: 2/6 (33%)
Deaths: 6/6
Phase 2- CRC 480 mg Cohort A
Serious: 8/19 (42%)
Deaths: 14/19
Phase 2- ccRCC 480 mg Cohort B
Serious: 6/8 (75%)
Deaths: 6/8
Phase 2- NSCLC 480 mg Cohort C
Serious: 8/23 (35%)
Deaths: 7/23

Serious adverse events (46 terms)

ReactionSystemPhase 1- 14 mg Cohort 1Phase 1- 40 mg Cohort 2Phase 1- 80 mg Cohort 3Phase 1- 160 mg Cohort 4Phase 1- 320 mg Cohort 5Phase 1- 480 mg Cohort 6Phase 1- 720 mg Cohort 7Phase 2- CRC 480 mg Cohort APhase 2- ccRCC 480 mg Coho…Phase 2- NSCLC 480 mg Coho…
Abdominal painGastrointestinal disorders
Infusion related reactionInjury, poisoning and procedural complications
Myocardial infarctionCardiac disorders
Sinus tachycardiaCardiac disorders
Small intestinal obstructionGastrointestinal disorders
FatigueGeneral disorders
Non-cardiac chest painGeneral disorders
PainGeneral disorders
CholangitisHepatobiliary disorders
COVID-19Infections and infestations
Cholangitis infectiveInfections and infestations
PneumoniaInfections and infestations
Hip fractureInjury, poisoning and procedural complications
Failure to thriveMetabolism and nutrition disorders
Back painMusculoskeletal and connective tissue disorders
Metastatic neoplasmNeoplasms benign, malignant and unspecified (incl cysts and polyps)
HaematuriaRenal and urinary disorders
DyspnoeaRespiratory, thoracic and mediastinal disorders
HypoxiaRespiratory, thoracic and mediastinal disorders
Pleural effusionRespiratory, thoracic and mediastinal disorders
Productive coughRespiratory, thoracic and mediastinal disorders
TachypnoeaRespiratory, thoracic and mediastinal disorders
AnaemiaBlood and lymphatic system disorders
BlindnessEye disorders
Gastrointestinal haemorrhageGastrointestinal disorders
Other adverse events (155 terms — click to expand)

ReactionSystemPhase 1- 14 mg Cohort 1Phase 1- 40 mg Cohort 2Phase 1- 80 mg Cohort 3Phase 1- 160 mg Cohort 4Phase 1- 320 mg Cohort 5Phase 1- 480 mg Cohort 6Phase 1- 720 mg Cohort 7Phase 2- CRC 480 mg Cohort APhase 2- ccRCC 480 mg Coho…Phase 2- NSCLC 480 mg Coho…
Infusion related reactionInjury, poisoning and procedural complications
Neutrophil count decreasedInvestigations
CoughRespiratory, thoracic and mediastinal disorders
NauseaGastrointestinal disorders
ConstipationGastrointestinal disorders
FatigueGeneral disorders
PyrexiaGeneral disorders
AstheniaGeneral disorders
AnaemiaBlood and lymphatic system disorders
Dermatitis acneiformSkin and subcutaneous tissue disorders
PruritusSkin and subcutaneous tissue disorders
Decreased appetiteMetabolism and nutrition disorders
Alanine aminotransferase increasedInvestigations
Aspartate aminotransferase increasedInvestigations
Blood bilirubin increasedInvestigations
Blood alkaline phosphatase increasedInvestigations
VomitingGastrointestinal disorders
Abdominal painGastrointestinal disorders
Abdominal discomfortGastrointestinal disorders
Oedema peripheralGeneral disorders
LymphopeniaBlood and lymphatic system disorders
Back painMusculoskeletal and connective tissue disorders
ArthralgiaMusculoskeletal and connective tissue disorders
DyspnoeaRespiratory, thoracic and mediastinal disorders
HeadacheNervous system disorders
DizzinessNervous system disorders
Weight decreasedInvestigations
DiarrhoeaGastrointestinal disorders
ProctalgiaGastrointestinal disorders
Non-cardiac chest painGeneral disorders
RashSkin and subcutaneous tissue disorders
Musculoskeletal chest painMusculoskeletal and connective tissue disorders
MyalgiaMusculoskeletal and connective tissue disorders
Pleural effusionRespiratory, thoracic and mediastinal disorders
HyponatraemiaMetabolism and nutrition disorders
COVID-19Infections and infestations
InsomniaPsychiatric disorders
Vision blurredEye disorders
TachycardiaCardiac disorders
Cytokine release syndromeImmune system disorders

Most-reported serious reactions: Abdominal pain, Infusion related reaction, Myocardial infarction, Sinus tachycardia, Small intestinal obstruction, Fatigue, Non-cardiac chest pain, Pain.

Data from ClinicalTrials.gov NCT04259450 adverse events section.

Sponsor's own description

AFM24-101 is a first in human Phase 1/2a open-label, non-randomized, multi-center, multiple ascending dose escalation/expansion study evaluating AFM24 as monotherapy in patients with advanced solid malignancies whose disease has progressed after treatment with previous anticancer therapies. AFM24 is a tetravalent bispecific (anti-human EGFR x anti-human CD16A) innate immune cell engaging recombinant antibody being developed to target EGFR-expressing solid tumors and has been designed to specifically utilize the cytotoxic potential of the innate immune system, in particular natural killer cells and macrophages for the specific and efficient elimination of EGFR expressing cancer cells.

Publications & conference data

8 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Emerging new therapeutic antibody derivatives for cancer treatment.
    Jin S, Sun Y, Liang X, Gu X, et al · · 2022 · cited 304× · PMID 35132063 · DOI 10.1038/s41392-021-00868-x
  2. Harnessing natural killer cells for cancer immunotherapy: dispatching the first responders.
    Maskalenko NA, Zhigarev D, Campbell KS. · · 2022 · cited 174× · PMID 35314852 · DOI 10.1038/s41573-022-00413-7
  3. Current landscape and future directions of bispecific antibodies in cancer immunotherapy.
    Wei J, Yang Y, Wang G, Liu M. · · 2022 · cited 127× · PMID 36389699 · DOI 10.3389/fimmu.2022.1035276
  4. Bispecific Antibodies and Antibody-Drug Conjugates for Cancer Therapy: Technological Considerations.
    Shim H. · · 2020 · cited 95× · PMID 32111076 · DOI 10.3390/biom10030360
  5. Bispecific antibodies in cancer therapy: Target selection and regulatory requirements.
    Sun Y, Yu X, Wang X, Yuan K, et al · · 2023 · cited 62× · PMID 37719370 · DOI 10.1016/j.apsb.2023.05.023
  6. Harnessing CD16-Mediated NK Cell Functions to Enhance Therapeutic Efficacy of Tumor-Targeting mAbs.
    Capuano C, Pighi C, Battella S, De Federicis D, et al · · 2021 · cited 62× · PMID 34065399 · DOI 10.3390/cancers13102500
  7. Preclinical evaluation of AFM24, a novel CD16A-specific innate immune cell engager targeting EGFR-positive tumors.
    Wingert S, Reusch U, Knackmuss S, Kluge M, et al · · 2021 · cited 55× · PMID 34325617 · DOI 10.1080/19420862.2021.1950264
  8. Development of pharmacological immunoregulatory anti-cancer therapeutics: current mechanistic studies and clinical opportunities.
    Yin N, Li X, Zhang X, Xue S, et al · · 2024 · cited 48× · PMID 38773064 · DOI 10.1038/s41392-024-01826-z

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Currently open trials in the same condition.

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Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing