A phase III trial of a De-escalated Immune-strategy During first-line treAtment in patients with metastatic non-small Cell lung cancer (NSCLC): DIDaC

2025-520792-67-00 Protocol DIDaC/ NVALT35 Therapeutic confirmatory (Phase III) Authorised, recruitment pending

Status Authorised, recruitment pending · 1 EU/EEA countries · 6 sites · Protocol DIDaC/ NVALT35

Overview

Sponsor-declared trial summary

Phase Therapeutic confirmatory (Phase III)
Status Authorised, recruitment pending
Participants planned 500
Countries 1
Sites 6

Patients with advanced, metastatic NSCLC that have not progressed on a standard of care immunotherapy regimen 6 months after initiation of first line treatment.

To evaluate the efficacy of shorter duration of standard of care treatment ([chemo]immunotherapy) for patients with metastatic NSCLC

Key facts

Sponsor
Leids Universitair Medisch Centrum (LUMC)
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Neoplasms [C04]
Decision date (initial)
2025-09-12
Transition trial
No
Low-intervention
Yes
Rare-disease indication
No
Vulnerable population
No
Funding sources
ZonMW

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Therapy, Efficacy

To evaluate the efficacy of shorter duration of standard of care treatment ([chemo]immunotherapy) for patients with metastatic NSCLC

Secondary objectives 4

  1. Overall survival (Time from randomization to death of any cause with a maximum of 18 months after randomisation of last patient)
  2. Adverse events (The number and type of adverse events classified by CTCAE 5.0 grading in each arm)
  3. Quality of Life (EQ-5D-5L, QLQ-C30 and QLQ-LC19 questionnaire measured in each arm at baseline and every 3 months thereafter until progression with a maximum of 18 months after randomisation)
  4. Cost Utility analysis, Budget impact analysis (iMC, EQ-5D-5L questionnaire measured in each arm at baseline and every 3 months thereafter until progression with a maximum of 18 months after randomisation)

Conditions and MedDRA coding

Patients with advanced, metastatic NSCLC that have not progressed on a standard of care immunotherapy regimen 6 months after initiation of first line treatment.

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 5

  1. Advanced, metastatic non-small cell lung cancer UICC stage IV
  2. Having received first line immunotherapy or first line (chemo)immunotherapy for 6 months ±2 weeks
  3. Response or stable disease according to RECIST 1.1 as determined by imaging no older than 3 weeks at moment of randomization
  4. Signed and dated informed consent.
  5. ECOG PS 0-2 and fit and willing to continue treatment with first line (chemo-)immunotherapy as deemed by the treating physician

Exclusion criteria 2

  1. Other systemic anti-cancer treatment for the disease under study other than the first line (chemo-)immunotherapy
  2. Any contra-indication (as per label) for treatment with immune checkpoint inhibitors

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. Time to disease progression as measured by RECIST 1.1 or death due to any cause in each arm, where each patient is followed for progression for a maximum of 18 months after randomization.

Secondary endpoints 4

  1. Number of patients alive at 18 months after randomization of the last patient in each arm.
  2. The number and type of adverse events classified by CTCAE 5.0 grading in each arm.
  3. EQ-5D-5L, QLQ-C30 and QLQ-LC19 questionnaire measured in each arm at baseline and every 3 months thereafter until progression with a maximum of 18 months after randomisation.
  4. iMC, EQ-5D-5L questionnaire measured in each arm at baseline and every 3 months thereafter until progression with a maximum of 18 months after randomisation.

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 2

KEYTRUDA 25 mg/mL concentrate for solution for infusion

PRD4323105 · Product

Active substance
Pembrolizumab
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
INTRAVENOUS
Max daily dose
200 mg milligram(s)
Max total dose
400 mg milligram(s)
Max treatment duration
18 Month(s)
Authorisation status
Authorised
ATC code
L01FF02 — -
Marketing authorisation
EU/1/15/1024/002
MA holder
MERCK SHARP & DOHME B.V.
MA country
EU
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

ALIMTA 500 mg powder for concentrate for solution for infusion

PRD291536 · Product

Active substance
Pemetrexed
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
INTRAVENOUS
Max daily dose
500 mg/m2 milligram(s)/square meter
Max total dose
500 mg/m2 milligram(s)/square meter
Max treatment duration
18 Month(s)
Authorisation status
Authorised
ATC code
L01BA04 — -
Marketing authorisation
EU/1/04/290/001
MA holder
ELI LILLY NEDERLAND B.V.
MA country
EU
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Leids Universitair Medisch Centrum (LUMC)

Sponsor organisation
Leids Universitair Medisch Centrum (LUMC)
Address
Albinusdreef 2
City
Leiden
Postcode
2333 ZA
Country
Netherlands

Scientific contact point

Organisation
Leids Universitair Medisch Centrum (LUMC)
Contact name
Egbert Smit

Public contact point

Organisation
Leids Universitair Medisch Centrum (LUMC)
Contact name
Egbert Smit

Locations

1 EU/EEA country · 6 investigational sites

By country

CountryMS statusPlanned subjectsSites
Netherlands Authorised, recruitment pending 500 6
Rest of world 0

Investigational sites

Netherlands

6 sites · Authorised, recruitment pending
Het Nederlands Kanker Instituut-Antoni van Leeuwenhoek Ziekenhuis Stichting
Longziekten, Plesmanlaan 121, 1066 CX, Amsterdam
Haga Hospital
Longziekten, Els Borst-Eilersplein 275, 2545 AA, 's-Gravenhage
Het Van Weel-Bethesda Ziekenhuis
Longziekten, Stationsweg 22, 3247 BW, Dirksland
Leids Universitair Medisch Centrum (LUMC)
Longziekten, Albinusdreef 2, 2333 ZA, Leiden
Gelre Hospitals
Longziekten, Albert Schweitzerlaan 31, 7334 DZ, Apeldoorn
Albert Schweitzer Ziekenhuis
Longziekten, Albert Schweitzerplaats 25, 3318 AT, Dordrecht

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 12 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1 Protocol 2025-520792-67 1.1
Protocol (for publication) D4 NL-NL Patient facing documents_questionnaire_EQ-5D-5L_self-complete 1
Protocol (for publication) D4 NL-NL Patient facing documents_questionnaire_iMCQ 1.1
Protocol (for publication) D4 NL-NL Patient facing documents_questionnaire_QLQ-C30 1
Protocol (for publication) D4 NL-NL Patient facing documents-questionnaire_QLQ-LC29 1
Recruitment arrangements (for publication) K1_Recruitment arrangements 1
Subject information and informed consent form (for publication) L1 NL-NL SIS and ICF redacted 1.2
Subject information and informed consent form (for publication) L2 NL-NL Other subject information material text for websites 1
Summary of Product Characteristics (SmPC) (for publication) E2 SmPC Alimta 1
Summary of Product Characteristics (SmPC) (for publication) E2 SmPC Keytruda 1
Synopsis of the protocol (for publication) D1 NL-EN Protocol synopsis 2025-520792-67 1.1
Synopsis of the protocol (for publication) D1 NL-NL Protocol synopsis 2025-520792-67 1.1

Application history

1 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2025-06-09 Netherlands Acceptable
2025-09-12
2025-09-12