Radiopharmaceuticals · Oncology · Theranostics

Next-generation FAP theranostics.

One target, two jobs - Therakles is developing THKS-3698 (18F; PET) and THKS-2698 (177Lu; RLT) as theranostic pair for Fibroblast Activation Protein (FAP), pairing molecular imaging with targeted delivery of cytotoxic radiation.

IND-ready · First-in-human imaging · Phase I 2027 · Exclusive Composition-of-Matters license

About Therakles

A radiopharma company built around one high-value target.

Mission & Vision

To develop FAP-targeted radioligands for precision oncology — providing more accurate diagnostic imaging and making RLT more effective and accessible.

Therakles Pharmaceuticals AG is a Swiss-based, seed-stage radiopharma company founded in 2024. A small, world-class team developing FAP-targeting small molecules that carry radioactive payloads to the tumour microenvironment — enabling precise diagnosis and targeted therapy from a single molecular platform, backed by strategic access to radioisotopes, CDMO capacity, and clinical networks.

Our Technology

Fibroblast activation protein (FAP) is highly expressed in the stroma of many solid tumours and is scarce in most healthy adult tissues. We use FAP to deliver fluorine-18 for PET/CT imaging and lutetium-177 for radioligand therapy — a theranostic pair designed for an improved therapeutic index and for existing radiopharmacy infrastructure.

What differentiates our technology?

Structurally distinct from first-generation FAP inhibitors, with higher in-vitro affinity and slower dissociation from the target (vs. FAPI-46).

A metabolically stable, polar linker designed to reduce off-target binding.

Improved tumour uptake and retention versus monomeric benchmarks in preclinical models (vs. FAP-2286).

Matched to established NOTA- and DOTA-based chelators and to 18F / 177Lu, so the pair can run on existing radiopharmacy infrastructure.

Intellectual property

The clinical structures are covered by a Composition-of-Matter family, exclusively licensed to Therakles with national-phase applications filed and under examination across key jurisdictions.

From the FAP-expressing tumour niche, a single targeting molecule is paired with a diagnostic or therapeutic isotope — the theranostic principle.

Pipeline

A pipeline spanning diagnosis and therapy.

Therakles is advancing FAP-targeted diagnostic and therapeutic lead candidates across colorectal, gastric, and other GI cancers.

Program Application Indication
Discovery Preclinical IND / FIH Phase 1

THKS-3698

18F (PET)

Gastrointestinal tumours

IND / FIH

THKS-2698

177Lu (Therapy)

Gastric, colorectal cancer

IND / FIH

THKS-5698

99mTc (SPECT)

Undisclosed

Discovery

Partnering

Investors and partners for a FAP theranostic pair.

Therakles is raising a seed round to complete a diagnostic (THKS-3698) and therapeutic (THKS-2698) Phase 1 study and is open to licensing, co-development, and clinical or manufacturing partnerships.

Let's collaborate →

Seed / strategic capital

Funded through mid-2027 to start two Phase 1 studies, Therakles is raising seed capital to complete both.

Licensing or co-development

Open to co-development or licensing of the FAP-targeting pair in solid tumours with high unmet need.

CDMO & clinical collaboration

Strategic partners in Latin America already cover isotope supply, CDMO and clinical capacity. We are interested in additional partners for other geographies, later-stage manufacturing, and clinical-network expansion.

Alliances & ecosystem

A network built across the value chain.

From academic R&D to GMP manufacturing, clinical research, and isotope supply.

Team

Led by scientists and operators in radiopharma.

A multidisciplinary team of scientists, clinicians, and entrepreneurs committed to advancing radiopharmaceutical innovation.

Leadership

Vasko Kramer

Vasko Kramer

Chief Executive Officer & Member of the Board

PhD in Radiopharmaceutical Chemistry with deep expertise in tracer development and the clinical translation of diagnostic and therapeutic radiopharmaceuticals.

René Fernández

René Fernández

Chief Medical Officer

Surgeon and nuclear-medicine physician with 15+ years leading diagnostic and therapeutic radiopharmaceutical clinical trials.

Sebastián Belmar-Willatt

Sebastián Belmar-Willatt

Chief Scientific Officer

Biochemist and PhD in Biotechnology with 12+ years in preclinical small-molecule pharmacology and drug discovery.

Cristián Soza-Ried

Cristián Soza-Ried

VP, Discovery

PhD in Natural Science (immunobiology, Max Planck) with two decades in molecular biology and oncology and 8 years in nuclear medicine.

Rodrigo Moraga-Amaro

Rodrigo Moraga-Amaro

Preclinical Project Manager

PhD in Medical Sciences (Groningen) with 13+ years in preclinical research, 10+ in preclinical nuclear medicine.

Board of Directors

Andreas Fintelmann

Andreas Fintelmann

President of the Board

Lawyer and executive with a long track record in management and sales across major radiopharmaceutical companies.

Emma McCullagh

Emma McCullagh

Vice President of the Board

Biochemist with 14 years advancing novel therapeutics from research through IND and clinical development.

Advisors

Andrea Lobos

Andrea Lobos

Legal Advisor

Lawyer and Master in Business Law with 20 years of experience in IP, technology transfer, and licensing in life sciences and biotech.

Sebastián Bernales

Sebastián Bernales

Scientific Advisor

PhD in Cell Biology with 15+ years in biotech; has led discovery teams and co-founded several companies.

Horacio Amaral

Horacio Amaral

Nuclear Medicine Advisor

Physician and pioneer of nuclear medicine in Chile with 50+ years in the field; founder of Positronmed and PositronPharma.

Andreas Kluge

Andreas Kluge

Clinical Research Advisor

Physician with 20+ years in clinical R&D; founder of ABX-CRO and non-executive director of Telix.

News & milestones

  1. 2024

    Founded in Baar Merken Biotech partnership Non-dilutive funding, THKS-2698

  2. 2025

    Collaboration with Otto von Guericke University Magdeburg

  3. 2026

    Capacity funding in Chile National-phase IP filings

Contact

Get in touch.

For science, partnering, or press enquiries, reach out to the team directly or send a message.

Registered office
Therakles Pharmaceuticals AG
Grabenstrasse 25
6340 Baar
Switzerland

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