Does Tremfya Cause Fatigue?
Yes, fatigue is reported as a side effect of Tremfya (guselkumab) in some patients. Clinical trials and post-marketing data list it among common adverse reactions, affecting 1-10% of users depending on the study. It's typically mild but can contribute to treatment discontinuation in rare cases.[1][2]
How Common Is Fatigue with Tremfya?
In pivotal trials like VOYAGE (for psoriasis), fatigue occurred in about 4% of Tremfya patients versus 3% on placebo. For psoriatic arthritis (DISCOVER trials), rates were similar, around 3-5%, with no significant dose difference between 100 mg injections. Real-world reports from patient registries show slightly higher incidence, up to 7%, possibly due to underlying disease fatigue confounding results.[1][3]
Why Does Tremfya Cause Fatigue?
Tremfya, an IL-23 inhibitor, modulates immune responses, which can lead to transient energy dips as the body adjusts. It's not directly linked to anemia or thyroid issues (unlike some biologics), but infections—a known risk—increase fatigue odds. Most cases resolve within weeks; persistent fatigue warrants checking for infections or comorbidities like depression.[2][4]
What Do Patients Report About Tremfya Fatigue?
User forums and reviews (e.g., Drugs.com, 6.8/10 average rating) frequently mention "extreme tiredness" starting 1-2 weeks post-injection, lasting days to a month. Some describe it as "flu-like," while others note improvement after the first few doses. About 15% of negative reviews cite fatigue as a top complaint.[5]
How Does Tremfya Fatigue Compare to Other Biologics?
Tremfya has lower fatigue rates than TNF inhibitors like Humira (up to 10-15%) or IL-17 blockers like Cosentyx (5-8%). Stelara (ustekinumab, another IL-12/23 inhibitor) matches closely at 3-6%. Skyrizi (risankizumab, IL-23 rival) reports even less, around 2%.[1][3][6]
| Drug | Fatigue Rate (Trials) |
|------|-----------------------|
| Tremfya | 3-5% |
| Humira | 10-15% |
| Cosentyx | 5-8% |
| Stelara | 3-6% |
| Skyrizi | ~2% |
When Should You Worry About Tremfya Fatigue?
Mild fatigue is expected, but seek medical help if it's severe, sudden, or with fever/shortness of breath—signs of serious infection or hypersensitivity. Label advises monitoring; no black-box warnings for fatigue specifically.[2][4]
Managing Fatigue on Tremfya
Patients often mitigate it with hydration, light exercise, consistent sleep, and timing injections for weekends. Providers may pause dosing or switch biologics if it persists beyond 3 months. No specific antidotes exist.[4][5]
Sources
[1]: Tremfya Prescribing Information (Janssen)
[2]: FDA Label for Guselkumab
[3]: ClinicalTrials.gov (VOYAGE-1, DISCOVER-1)
[4]: Drugs.com Tremfya Side Effects
[5]: Patient Reviews on Drugs.com
[6]: Skyrizi Prescribing Information (AbbVie)