A modular, first time in human, open label, multiple dose, accelerated escalation with cohort expansion study of the safety and pharmacokinetics of intravenous infusion of CP-506, a tumor agnostic Hypoxia Activated Prodrug in patients with HRD/FAD solid tumors or tumor types with high incidence of HRD/FAD in monotherapy or in combination with carboplatin or patients with solid tumor and oligoprogressive disease receiving immune checkpoint inhibitors (ICI): a phase I-IIa clinical trial.

2023-506818-45-00 Phase I and Phase II (Integrated) - First administration to humans Ongoing, recruitment ended

Start 13 Dec 2022 · Status Ongoing, recruitment ended · 3 EU/EEA countries · 5 sites

Overview

Sponsor-declared trial summary

Phase Phase I and Phase II (Integrated) - First administration to humans
Status Ongoing, recruitment ended
Participants planned 159
Countries 3
Sites 5

Solid tumors that have a high incidence of Homologous Recombination (HRD) or Fanconi Anemia (FAD) DNA damage repair deficiency.

Key facts

Sponsor
Convert Pharmaceuticals
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Neoplasms [C04]
Trial duration
13 Dec 2022 → ongoing
Decision date (initial)
2025-06-30
Transition trial
Yes
Low-intervention
No
Rare-disease indication
No
Vulnerable population
No

External identifiers

EU CT number
2023-506818-45-00
EudraCT number
2021-000423-12
ClinicalTrials.gov
NCT04954599

Trial design

CTIS Part I — objectives, methods, condition coding

Conditions and MedDRA coding

Solid tumors that have a high incidence of Homologous Recombination (HRD) or Fanconi Anemia (FAD) DNA damage repair deficiency.

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Convert Pharmaceuticals

Sponsor organisation
Convert Pharmaceuticals
Address
Esplanade Simone Veil 1
City
Liege
Postcode
4000
Country
Belgium

Scientific contact point

Organisation
Convert Pharmaceuticals
Contact name
Helene Devroye

Public contact point

Organisation
Convert Pharmaceuticals
Contact name
Amelie Vanneste

Locations

3 EU/EEA countries · 5 investigational sites

By country

CountryMS statusPlanned subjectsSites
Belgium Temporarily halted 50 2
Netherlands Temporarily halted 84 2
Spain Authorised, recruitment pending 25 1
Rest of world 0

Investigational sites

Belgium

2 sites · Temporarily halted
Universitair Ziekenhuis Gent
Medical Oncology, Corneel Heymanslaan 10, 9000, Gent
Institut Jules Bordet
Medical Oncology, Mijlenmeersstraat 90, 1070, Anderlecht

Netherlands

2 sites · Temporarily halted
Maastricht University Medical Center
Medical oncology, P Debyelaan 25, 6229HX, Maastricht
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Medical Oncology, Dr. Molewaterplein 60, 3015 GJ, Rotterdam

Spain

1 site · Authorised, recruitment pending
Fundacio Hospital Universitari Vall D’Hebron Institut De Recerca
Medical Oncology, Passeig De La Vall D'Hebron 119-129, 08035, Barcelona

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Belgium 2025-10-08 2025-12-10 2026-06-05
Netherlands 2022-12-13 2023-05-30 2026-06-05

Oversight and notifications

Regulatory notifications under CTR Articles 38, 52, 53, 54 and 77

Temporary halts 2 · Art. 38 CTR

Temporary halt TH-137651

Halt date
2026-06-05
Planned restart
2026-09-01
Member states concerned
Belgium
Publication date
2026-06-05
Reason
Medicinal Product related
Explanation
Recruitment is temporarily halted due to a shortage of the investigational medicinal product. We have prepared a new batch of product but we changed the manufacturer and manufacturing process, therefore we will need to submit an updtaed IMPD and this will take more time than the shelf life of our current batch.
Follow-up measures
Treatment of the two ongoing patients can be done with what we have left of the previous batch
Benefit-risk balance changed
No
Treatment stopped
No

Temporary halt TH-137653

Halt date
2026-06-05
Planned restart
2026-09-01
Member states concerned
Netherlands
Publication date
2026-06-05
Reason
Medicinal Product related
Explanation
Recruitment is temporarily halted due to a shortage of the investigational medicinal product. We have prepared a new batch of product but we changed the manufacturer and manufacturing process, therefore we will need to submit an updtaed IMPD and this will take more time than the shelf life of our current batch.
Follow-up measures
Treatment of the two ongoing patients can be done with what we have left of the previous batch
Benefit-risk balance changed
No
Treatment stopped
No

Application history

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

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2024-05-24 Netherlands Acceptable
2024-06-06
2024-06-06
2 SUBSTANTIAL MODIFICATION SM-3 2024-09-16 Netherlands Acceptable
2025-01-07
2025-01-07
3 SUBSEQUENT ADDITION OF MSC APP-3 2025-04-30 2025-06-30
4 SUBSEQUENT ADDITION OF MSC APP-4 2025-04-30 2025-07-16
5 NON SUBSTANTIAL MODIFICATION NSM-1 2026-05-04 Netherlands 2026-05-04
6 SUBSTANTIAL MODIFICATION SM-6 2026-06-24 Netherlands Acceptable
2026-06-30
2026-06-30