# 2026 ASCO | Innovent Presents Long-Term Follow-up Results from the PoC Study of IBI363 (TAK-928) (PD-1/IL-2α-bias bispecific fusion protein), Showing Robust Survival Benefits in Advanced Immunotherapy-Resistant Non-Small Cell Lung Cancer

- Link: https://www.thailand-business-news.com/pr-news/2026-asco-innovent-presents-long-term-follow-up-results-from-the-poc-study-of-ibi363-tak-928-pd-1-il-2%ce%b1-bias-bispecific-fusion-protein-showing-robust-survival-benefits-in-advanced-immunoth
- Published: 2026-06-01T07:00:00+07:00
- Author: PR Newswire

◦ _After long-term follow-up, IBI363 monotherapy demonstrated strong overall survival(
   OS) with a long tail effect in IO-resistant squamous NSCLC and adenoNSCLC _
 ◦ _IBI363 has entered a global Phase 3 clinical study (MarsLight-11) for IO-resistant
   squamous NSCLC; pending regulatory communications, initiation of a global Phase
   3 clinical study of IBI363 for IO-resistant non-squamous NSCLC is also planned._
 ◦ _Innovent and Takeda are co-developing IBI363 (Takeda R&D code: TAK-928) globally._

SAN FRANCISCO and SUZHOU, China, June 1, 2026 /PRNewswire/ — Innovent Biologics,
Inc. ("Innovent") (HKEX: 01801), a world-class biopharmaceutical company that develops,
manufactures and commercializes high-quality medicines for the treatment of oncology,
cardiovascular and metabolic, autoimmune, ophthalmology and other major diseases,
today announces updated data from the Phase 1 PoC clinical study of its first-in-
class PD-1/IL-2^(α-bias) bispecific fusion protein IBI363 (Takeda R&D code: TAK-
928) in the treatment of advanced immunotherapy(IO)-resistant non-small cell lung
cancer (NSCLC) The detailed data was presented today at the 2026 American Society
of Clinical Oncology (ASCO) Annual Meeting.

The updated data is from a PoC clinical study conducted in China to evaluate the
safety and efficacy of IBI363 monotherapy in subjects with advanced NSCLC (ClinicalTrials.
gov, NCT05460767). As of the follow-up cutoff date of November 20, 2025, a total
of 136 subjects with NSCLC had received IBI363 monotherapy (2 μg/kg QW~4mg/kg once
every 3 weeks, Q3W).

**IBI363 Showed Robust Survival Benefits with a Long Tail Effect in IO-Resistant
Squamous NSCLC**

 ◦ All 67 squamous NSCLC patients had no known EGFR mutations. Among them, 28 patients
   received IBI363 at 1 mg/kg Q2W or 1.5 mg/kg Q3W, and 31 patients received IBI363
   at 3 mg/kg Q3W. **In the 3 mg/kg Q3W dose group, the median PFS reached 10.1 (
   95%CI 6.0, 14.0) months, and the median OS achieved 18.2 (95%CI 10.7, NE; maturity
   48.4%) months, with a 24-month OS rate of 47.8% (95%CI 28.7, 64.7).**

[[

**IBI363 Showed Potential for Long-Term Survival Benefits with a Long Tail Effect
in IO-Resistant Wild-type AdenoNSCLC, Especially in Patients with a Smoking History**

 ◦ Among the 58 patients with EGFR wild-type adenoNSCLC, 30 patients received IBI363
   at 0.6 mg/kg Q2W or 1 mg/kg Q2W or 1.5 mg/kg Q3W, and 25 patients received IBI363
   at 3 mg/kg Q3W. **In the 3 mg/kg dose group, the median PFS reached 4.2 (95%CI
   3.0, 7.0) months, and the median OS achieved 15.2 months (95%CI 9.6, NE; maturity
   56.0%), with a 24-month OS rate of 42.7% (95%CI 23.1, 61.0).**
 ◦ Smoking history may be an important influencing factor for efficacy in immuno-
   resistant adenoNSCLC. In adenoNSCLC subjects with a smoking history, better survival
   benefits were observed. **The median OS for smokers across all dose groups (N
   =31) reached 23.4 (95%CI 11.3, NE, maturity 48.4%) months.**

[[

**IBI363 Showed a Favorable Safety Profile in Long-Term Follow-up**

 ◦ In the long-term follow-up of the overall population (n = 136), IBI363 demonstrated
   a favorable safety profile: treatment-emergent adverse events (TEAEs) of grade
   3 or above occurred in 30.6% of patients treated with 1/1.5 mg/kg and 64.9% of
   patients treated with 3mg/kg.
 ◦ The most common adverse events among all patients were arthralgia (52.2%, 3.7%
   ≥grade 3), anemia (46.3%, 4.4% ≥grade 3), and rash (39.0%, 8.8% ≥grade 3), which
   were mostly controllable and manageable with mild-to-moderate AEs. No new safety
   signals were observed.

**Professor Jianya Zhou, The First Affiliated Hospital, School of Medicine, Zhejiang
University, **commented: "Lung cancer remains the most commonly diagnosed and deadliest
malignancy worldwide, representing a major public health challenge. Despite the 
transformative impact of immunotherapy on the treatment landscape of NSCLC, patients
with wild-type NSCLC who experience disease progression following immunotherapy 
continue to face limited treatment options, with docetaxel-based standard-of-care
therapy offering only modest efficacy.

In recent years, emerging approaches such as immunotherapy-based combinations and
ADCs have brought new hope. However, multiple large-scale Phase III clinical trials
in NSCLC patients who had failed both platinum-based chemotherapy and immunotherapy
have not yet delivered satisfactory outcomes. Therefore, there remains a substantial
and urgent unmet medical need in the post-immunotherapy setting for NSCLC.

As a PD-1/IL-2^(α-bias) bispecific molecule, IBI363 has demonstrated encouraging
clinical benefit in immunotherapy-resistant NSCLC, with both objective response 
rate (ORR) and progression-free survival (PFS) showing meaningful improvement.**
Notably, in the 3 mg/kg Q3W cohort, more than 40% of patients with either squamous
or adenocarcinoma histology survived beyond 24 months. These findings highlight 
the potential of IBI363 to generate a durable immunotherapy tail effect and deliver
long-term survival benefits for patients.**"

**Dr. Hui Zhou, Chief R&D Officer (Oncology Pipeline) of Innovent, stated:** "While
immunotherapy has significantly improved survival outcomes for certain patients,
treatment options remain extremely limited for patients with NSCLC who do not respond
to immunotherapy and lack actionable driver gene mutations, making long-term survival
difficult to achieve.The proof-of-concept (PoC) data presented at this year’s ASCO
meeting are highly encouraging. **IBI363 has demonstrated not only meaningful short-
term disease control, but also, through extended follow-up, validated the unique
long-term survival benefits of its dual mechanism of action, combining immune checkpoint
blockade with cytokine agonism. **We are excited about the potential of IBI363 to
provide a novel treatment option for a broad population of patients and ultimately
help deliver durable, long-term survival benefits."

**About IBI363 (PD-1/IL-2****^(α-bias )****Bispecific Fusion Protein)**

IBI363 is a first-in-class PD-1/IL-2^(α-bias) bispecific fusion protein developed
by Innovent Biologics. It functions by both blocking the PD-1/PD-L1 pathway and 
selectively activating the IL-2 pathway. The IL-2 arm of IBI363 is designed to maintain
its affinity for IL-2Rα while reducing binding to IL-2Rβ and IL-2Rγ, thereby minimizing
toxicity. The PD-1 binding arm not only blocks PD-1 but also selectively delivers
IL-2 to the tumor through binding to IL-2 receptor alpha.

IBI363 is being evaluated in a series of clinical trials globally, led by a pivotal
Phase II study in China in previously untreated acral and mucosal melanoma and a
global multi-regional Phase III trial in immunotherapy-resistant squamous NSCLC.
In parallel, multiple Phase Ib/II trials are evaluating IBI363 in NSCLC and CRC 
including the first-line and later line settings, and in additional tumor types.
IBI363 has received two Fast Track Designations (FTD) from the U.S. FDA and three
Breakthrough Therapy Designations (BTD) from China NMPA so far.

In October 2025, Innovent entered into a license and collaboration agreement with
Takeda, under which Innovent and Takeda will co-develop IBI363 (Takeda R&D code:
TAK-928) globally and co-commercialize IBI363 in the U.S., and Takeda will exclusively
commercialize IBI363 worldwide other than the U.S. and greater China.

**About Innovent**

Innovent is a leading biopharmaceutical company founded in 2011 with the mission
to empower patients worldwide with affordable, high-quality biopharmaceuticals. 
The company discovers, develops, manufactures and commercializes innovative medicines
that target some of the most intractable diseases. Its pioneering therapies treat
cancer, cardiovascular and metabolic, autoimmune and eye diseases. Innovent has 
launched 18 products in the market. It has 5 assets in Phase III or pivotal clinical
trials and 14 more molecules in early clinical stage. Innovent partners with over
30 global healthcare companies, including Eli Lilly, Roche, Takeda, Sanofi, Incyte,
LG Chem and MD Anderson Cancer Center.

Guided by the motto, "Start with Integrity, Succeed through Action," Innovent maintains
the highest standard of industry practices and works collaboratively to advance 
the biopharmaceutical industry so that first-rate pharmaceutical drugs can become
widely accessible. For more information, visit [www.innoventbio.com](http://www.innoventbio.com/),
or follow Innovent on Facebook and LinkedIn.

**Forward-looking statement**

This news release may contain certain forward-looking statements that are, by their
nature, subject to significant risks and uncertainties. The words "anticipate", "
believe", "estimate", "expect", "intend" and similar expressions, as they relate
to Innovent Biologics ("Innovent"), are intended to identify certain of such forward-
looking statements. The Company does not intend to update these forward-looking 
statements regularly.

These forward-looking statements are based on the existing beliefs, assumptions,
expectations, estimates, projections and understandings of the management of the
Company with respect to future events at the time these statements are made. These
statements are not a guarantee of future developments and are subject to risks, 
uncertainties and other factors, some of which are beyond the Company’s control 
and are difficult to predict. Consequently, actual results may differ materially
from information contained in the forward-looking statements as a result of future
changes or developments in our business, the Company’s competitive environment and
political, economic, legal and social conditions.

The Company, the Directors and the employees of the Company assume (a) no obligation
to correct or update the forward-looking statements contained in this site; and (
b) no liability in the event that any of the forward-looking statements does not
materialise or turn out to be incorrect.

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