In the world of cancer treatment, timing isn't just important—it's everything. When a patient is recommended targeted radioligand therapy, especially with advanced isotopes like Terbium-161 (Tb-161), the effectiveness of that treatment depends significantly on timely and uninterrupted access. And yet, globally, hospitals and cancer centres are increasingly facing a common bottleneck: supply chain delays in the delivery of crucial medical isotopes.
Fortunately, at Fortis Memorial Research Institute (FMRI), Gurugram, our patients don’t have to wait endlessly. Through a secure sourcing partnership with TerThera in the Netherlands—one of the most reliable producers of Tb-161 worldwide—our centre has maintained a stable and predictable delivery pipeline for this cutting-edge therapeutic isotope.
Where Is Terbium-161 Sourced From?
Terbium-161 is produced via neutron irradiation of enriched Gadolinium-160 (160Gd) in a nuclear reactor. This process results in high-purity Tb-161, suitable for medical-grade use in precision oncology. TerThera, headquartered in the Netherlands, has established itself as one of the leading suppliers of this radionuclide, with validated logistics and calibration protocols that ensure dose reliability, clinical safety, and continuity of care.
Our partnership with TerThera means that every few weeks, we receive calibrated doses of Terbium-161 on a pre-scheduled basis—a feat that allows our clinical team to commit to forward-planning therapy cycles and streamline patient bookings without uncertainty.
Terbium-161 Delivery Schedule: 2025 (Tentative)*
Below is a tentative schedule of Terbium-161 deliveries to our centre as shared by TerThera. These dates are subject to change based on international shipping, calibration processing, and regulatory factors.
JUNE
* Delivery: 16.06.2025 / 17.06.2025
* Order Deadline: 02.06.2025
* Delivery: 30.06.2025 / 01.07.2025
* Order Deadline: 16.06.2025
JULY
* Delivery: 14.07.2025 / 15.07.2025
* Order Deadline: 30.06.2025
* Delivery: 21.07.2025 / 22.07.2025
* Order Deadline: 07.07.2025
AUGUST
* Delivery: 18.08.2025 / 19.08.2025
* Order Deadline: 04.08.2025
SEPTEMBER
* Delivery: 01.09.2025 / 02.09.2025
* Order Deadline: 18.08.2025
* Delivery: 15.09.2025 / 16.09.2025
* Order Deadline: 01.09.2025
* Delivery: 29.09.2025 / 30.09.2025
* Order Deadline: 15.09.2025
OCTOBER
* Delivery: 13.10.2025 / 14.10.2025
* Order Deadline: 29.09.2025
* Delivery: 27.10.2025 / 28.10.2025
* Order Deadline: 13.10.2025
NOVEMBER
* Delivery: 10.11.2025 / 11.11.2025
* Order Deadline: 27.10.2025
* Delivery: 24.11.2025 / 25.11.2025
* Order Deadline: 10.11.2025
DECEMBER
* Delivery: 08.12.2025 / 09.12.2025
* Order Deadline: 24.11.2025
* Delivery: 22.12.2025 / 23.12.2025
* Order Deadline: 08.12.2025
*Note: This schedule has been shared as received from the supplier and is subject to change.
Why Stable Supply Matters in Tb-161 Therapy
Terbium-161 is not a one-time treatment. It is administered in 4 to 6 cycles over several months, depending on patient response, dosimetry findings, and disease burden. Each cycle is carefully calculated and scheduled using individualized imaging and lab data. A disruption in isotope supply doesn’t just delay one dose—it risks the efficacy of the overall treatment plan.
At FMRI, the confidence to plan ahead and administer every dose on time is what sets our centre apart. We don't just offer access to Terbium-161; we offer consistency, precision, and peace of mind.
If you’ve been advised Terbium-161 therapy—or if you’re seeking a second opinion about PSMA or DOTATATE-based targeted therapy—we encourage you to plan your treatment in advance. Our clinical and coordination teams can help align your treatment dates with upcoming delivery cycles.
You can also share your medical history and imaging directly with Dr. Ishita B. Sen, Senior Director, Nuclear Oncology, at info@nuclearmedicinetherapy.in mailto:info@nuclearmedicinetherapy.in for an expert review.
Don’t let delays in supply delay your healing. With us, timing is on your side.